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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 3702. Отображено 197.
13-02-2017 дата публикации

КОМПОЗИЦИИ ДЛЯ ПРОИЗВОДСТВА ИЗДЕЛИЙ ИЗ ГИДРОФИЛЬНОГО ПОЛИСТИРОЛА

Номер: RU2610504C2

Изобретение относится к применению композиции для усиления гидрофильных свойств твердого невспененного или вспененного полистирола. Композиция содержит компонент А, компонент В и компонент Р, где компонент А представляет собой алкилсульфонат, алкилбензолсульфонат и/или олефинсульфонат, компонент В представляет собой полиэтиленгликоль и компонент Р представляет собой полистирол и/или его сплав. Технический результат заключается в усилении гидрофильности полистирола, а также в достижении высокой адсорбционной способности полистирольного материала с добавками по сравнению с чистым полистирольным материалом без указанных добавок. 8 з.п. ф-лы, 2 табл., 1 ил., 18 пр.

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19-04-2019 дата публикации

Номер: RU2017126063A3
Автор:
Принадлежит:

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20-08-2016 дата публикации

РАСТВОРИМЫЕ В ВОДЕ ПОРОШКООБРАЗНЫЕ ПОЛИМЕРЫ, ОБЛАДАЮЩИЕ УЛУЧШЕННОЙ ДИСПЕРГИРУЕМОСТЬЮ

Номер: RU2015103179A
Принадлежит:

... 1. Сухая порошкообразная композиция, содержащая растворимые в воде порошкообразные полимеры и компонент, где компонент выбран из группы, состоящей из поли(метилвинилового эфира-альт-малеиновой кислоты), сополимера поли(метилвинилового эфира-альт-сложного эфира малеиновой кислоты), поли(метилвинилового эфира-альт-малеинового ангидрида), сополимера поли(метилвинилового эфира-альт-сложного эфира малеинового ангидрида), поли(стирола-со-малеиновой кислоты), сополимера поли(стирола-со-сложного эфира малеиновой кислоты), поли(стирола-со-малеинового ангидрида), сополимера поли(стирола-со-сложного эфира малеинового ангидрида) и их комбинации.2. Сухая порошкообразная композиция по п. 1, где компонент смешивают с растворимыми в воде порошкообразными полимерами.3. Сухая порошкообразная композиция по п. 1, где компонент наносят на растворимые в воде порошкообразные полимеры.4. Сухая порошкообразная композиция по п. 1, в которой растворимыми в воде порошкообразными полимерами являются полиакриламиды, ...

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27-09-2011 дата публикации

БЛОКСОПОЛИМЕРЫ ЭТИЛЕНОКСИДА/ПРОПИЛЕНОКСИДА В КАЧЕСТВЕ СТАБИЛИЗАТОРОВ ДЛЯ ПОЛИУРЕТАНОВЫХ ПЕН

Номер: RU2010110648A
Принадлежит:

... 1. Применение блоксополимеров этиленоксида/пропиленоксида в качестве стабилизаторов для полиуретановых пен. ! 2. Применение по п.1, отличающееся тем, что блоксополимеры этиленоксида/пропиленоксида имеют 5-95 мас.% этиленоксида относительно суммы этилен- и пропиленоксида и среднечисленную молекулярную массу от 1000 до 10000 г/моль. ! 3. Применение по п.1, отличающееся тем, что в качестве блоксополимеров этиленоксида/пропиленоксида используют блоксополимеры формулы (I) ! ! 4. Применение по п.1, отличающееся тем, что помимо стабилизации достигается также гидрофильность пен. ! 5. Применение по п.1 или 4, отличающееся тем, что речь идет о таких полиуретановых пенах, которые получают физическим высушиванием из водных полиуретановых дисперсий. ! 6. Состав, содержащий водную, анионную гидрофильную полиуретановую дисперсию (I) и пенообразующие добавки (II), причем эти пенообразующие добавки (II) содержат, по меньшей мере, один блоксополимер этиленоксида/пропиленоксида. ! 7. Состав по п.6, отличающийся ...

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27-06-2019 дата публикации

SYNERGISTISCHE ZÄHIGKEITSVERBESSERUNG VON EPOXID, DAS MIT GRAPHEN UND BLOCK-COPOLYMER MODIFIZIERT IST

Номер: DE112017004473T5

Ausführungsformen betreffen Zusammensetzungen umfassend (i) amphiphiles Block-Copolymer; (ii) Harzmaterial; und aminmodifiziertes Graphenoxid; wobei die Zusammensetzung einen Synergieeffekt in dem Wert der kritischen Spannungs-Energiefreisetzungsrate (GI) gegenüber dem vorhergesagten Wert zeigt, der berechnet wird durch Addieren (i) des GI-Werts für reines Harzmaterial und (ii) der Differenz in GI, die auftritt, wenn das amphiphile Block-Copolymer zu dem Harzmaterial hinzugefügt wird, gegenüber dem reinen Harzmaterial, und (iii) der Differenz in GI, die auftritt, wenn das aminmodifizierte Graphenoxid zu dem Harzmaterial hinzugefügt wird, gegenüber dem reinen Harzmaterial.

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30-04-2015 дата публикации

Porous gels and uses thereof

Номер: AP2015008341A0
Автор: WU JEN-CHIEH, LI NAIHONG
Принадлежит:

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30-04-2015 дата публикации

Porous gels and uses thereof

Номер: AP0201508341A0
Автор: WU JEN-CHIEH, LI NAIHONG
Принадлежит:

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30-04-2015 дата публикации

Porous gels and uses thereof

Номер: AP0201508341D0
Автор: WU JEN-CHIEH, LI NAIHONG
Принадлежит:

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09-12-2021 дата публикации

Three-dimensional micro-environment structure for controlling cell behavior, three-dimensional surface for controlling cell behavior, and method for manufacturing array and three-dimensional micro-environment structure

Номер: AU2016431869B2
Принадлежит:

The present invention relates to a three-dimensional micro-environment structure for controlling cell behavior, a three-dimensional surface for controlling cell behavior, and a method for manufacturing an array and a three-dimensional micro-environment structure.

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14-02-2019 дата публикации

Cross-linked high stable anion exchange blend membranes with polyethyleneglycols as hydrophilic membrane phase

Номер: AU2017280451A1
Принадлежит: Thomas Haering

The invention relates to: - anion exchange blend membranes consisting the following blend components: - a halomethylated polymer (a polymer with -(CH ...

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16-08-2018 дата публикации

Load-bearing member surface treatment

Номер: AU2018200593A1
Принадлежит: FPA Patent Attorneys Pty Ltd

A method of surface treating a load-bearing member comprising a tension member and a polymer jacket around the tension member is disclosed. According to the method, a liquid composition including water, a water-soluble organic polyol or a water-soluble organic polymer, and a surfactant is applied to a surface of the polymer jacket. ci 34 d Id 34 ci ci 6 36 d c 6 32 28 I 28 28 3 -30 ...

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19-03-2015 дата публикации

Hydrogel prodrugs

Номер: AU2013328785A1
Принадлежит:

The present invention relates to a process for the preparation of a hydrogel and to a hydrogel obtainable by said process. The present invention further relates to a process for the preparation of a hydrogel-spacer conjugate, to a hydrogel-spacer conjugate obtainable by said process, to a process for the preparation of a carrier-linked prodrug and to carrier- linked prodrugs obtainable by said process, in particular to carrier- linked prodrugs that provide for a controlled or sustained release of a drug from a carrier. In addition, the invention relates to the use of the hydrogel for the preparation of a carrier-linked prodrug.

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26-10-2017 дата публикации

Stable polyethylene glycol particle dispersions and methods for forming the stable dispersions

Номер: AU2016233693A1
Автор: HOLT JASON, Holt, Jason
Принадлежит: AJ PARK

Stable dispersions of solid polyethylene glycol particles are described in polyalkylene glycol liquids. The stable dispersions have an increased viscosity relative to the liquids without the suspended particles. The stable dispersions can be formed from a melt of the polyethylene glycol particles mixed within the liquid.

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26-10-2017 дата публикации

Hydrophilic coatings and methods of forming the same

Номер: AU2016248234A1
Принадлежит: Shelston IP Pty Ltd.

Hydrophilic coatings including a base coat layer and a top coat layer wherein at least one of the base coat and top coat compositions that form the hydrophilic coatings comprises a diacrylate compound have a number average molecular weight less than 1000.

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12-04-2018 дата публикации

Process and apparatus for manufacture of processable polyvinyl alcohol

Номер: AU2016323721A1
Принадлежит: Baxter Patent Attorneys Pty Ltd

The invention describes a method for the manufacture of a plasticised polyvinyl alcohol polymer mixture, the method comprising the steps of: introducing a polyvinyl alcohol polymer comprising at least 98wt% polyvinyl alcohol or a blend of the polymer into a mixing reactor; wherein the mixing reactor comprises a blending chamber having a primary inlet, a primary outlet and at least two inter-engaging components extending between the primary inlet and primary outlet, the components being arranged to apply a shearing force to the polymer while the polymer is conveyed by the components from the inlet through a reaction zone to the outlet; one or more secondary inlets located downstream from the primary inlet for introducing reactants comprising a processing agent and a plasticiser to the chamber to form a reaction mixture; wherein the blending chamber comprises a plurality of heated regions arranged so that the mixture is subjected to a controlled temperature profile; a secondary outlet located ...

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21-06-2018 дата публикации

MESOPOROUS ORGANIC MATERIAL, USEFUL IN PARTICULAR FOR EXTRACTING URANIUM(VI) FROM AQUEOUS MEDIA INCLUDING PHOSPHORIC ACID, AND USES THEREOF

Номер: CA0003046550A1
Принадлежит:

L'invention se rapporte à un matériau organique mésoporeux qui permet d'extraire, par la technique d'extraction liquide-solide, l'uranium(VI) présent dans un milieu aqueux comprenant de l'acide phosphorique très efficacement et avec une haute sélectivité vis-à-vis du fer susceptible d'être également présent dans ce milieu. Elle se rapporte aussi aux utilisations de ce matériau. Le matériau est susceptible d'être obtenu par une polymérisation réticulante d'un monomère de formule (I) ci-après, dans laquelle : R1, R2 et R3 représentent, indépendamment les uns des autres, H, un groupe hydrocarboné, saturé ou insaturé, linéaire ou ramifié, en C1 à C12 ou un groupe polymérisable, avec la condition que l'un au moins de R1, R2 et R3 soit un groupe polymérisable; R4 et R5 représentent, indépendamment l'un de l'autre, H ou un groupe hydrocarboné, saturé ou insaturé, linéaire ou ramifié, en C1 à C8; la polymérisation réticulante étant réalisée en présence d'un agent réticulant et d'un ou plusieurs ...

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16-07-2019 дата публикации

PHENOLIC RESIN FOAM AND METHOD FOR PRODUCING SAME

Номер: CA0002978851C

Provided are a phenolic resin foam having low environmental impact, high compressive strength, excellent handling properties in installation, and low costs associated with securing, and also a method of producing the same. The phenolic resin foam contains at least one selected from the group consisting of a chlorinated hydrofluoroolefin, a non-chlorinated hydrofluoroolefin, and a halogenated hydrocarbon. The phenolic resin foam has a density of at least 20 kg/m3 and no greater than 100 kg/m3, and a closed cell ratio of at least 80% and no greater than 99%. The density and 10% compressive strength of the phenolic resin foam satisfy a relationship: C >= 0.5X - 7, where C represents the 10% compressive strength (N/cm2) and X represents the density (kg/m3).

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08-08-2017 дата публикации

PHENOL RESIN FOAM

Номер: CA0002935042C

A phenol resin foam which comprises a phenol resin, a hydrocarbon having six or fewer carbon atoms, and at least one halogenated hydroolefin selected from the group consisting of hydrofluoroolefins and hydrochlorofluoroolefins and which has a density of 10 to 150kg/m3, wherein the sum of contents of the hydrocarbon and the halogenated hydroolefin is 0.23 to 0.90mol, the content of the hydrocarbon is 0.03 to 0.85mol, and the content of the halogenated hydroolefin is 0.05 to 0.85mol, each content being per 22.4×10-3m3 of the space volume of the phenol resin foam.

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30-04-2015 дата публикации

POLYOLEFIN BASED FILMS WITH IMPROVED WATER VAPOR TRANSMISSION RATES

Номер: CA0002927703A1
Принадлежит:

The present invention provides a film suitable for applications requiring high water vapor transmission rates. The film comprises a polyolefin polymer together with from 1 to 30 percent by weight of the film of a hydrophilic polymer and from 30 to 75 percent by weight of the film of a filler having a hydrophilic surface functionality.

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07-07-2016 дата публикации

GAS BARRIER COATING TECHNIQUES AND ARTICLES PRODUCED THEREOF

Номер: CA0002970523A1
Принадлежит:

Methods of forming a barrier layer on a substrate to form a halogen-free multi-layer construction configured to increase the barrier properties of the substrate are described. The barrier layer can reduce the oxygen transmission rate through the construction and can reduce the amount of air on one side of the construction. The methods include dissolving a highly amorphous vinyl alcohol polymer in a solvent to form a solution and applying the solution to the substrate. The solution is dried to form a barrier layer on the substrate. The barrier layer is continuous, relatively thin, and has a consistent thickness throughout the barrier layer, yet provides improved barrier properties. The methods can include using water-impermeable interior and exterior layers for preventing liquid water and water vapor from negatively affecting the functioning of the barrier layer, and an adhesive layer for reducing flex cracking failure of the barrier layer.

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28-01-2020 дата публикации

COMPOSITIONS FOR THE PRODUCTION OF A HYDROPHILIC POLYSTYRENE ARTICLE

Номер: CA0002860629C

The invention relates to the use of two components in the joint extrusion with a polystyrene in order to increase the hydrophilic properties of the processed solid or foamed polystyrene film, sheet or food tray. The first component being an alkyl sulfonate, alkylbenzene sulfonate or olefin sulfonate, the second component is a polyethylene glycol, the two components can also be used in form of a composition, the composition being in the form of a masterbatch or of a Compound.

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17-04-2014 дата публикации

HYDROGEL PRODRUGS

Номер: CA0002883833A1
Принадлежит:

The present invention relates to a process for the preparation of a hydrogel and to a hydrogel obtainable by said process. The present invention further relates to a process for the preparation of a hydrogel-spacer conjugate, to a hydrogel-spacer conjugate obtainable by said process, to a process for the preparation of a carrier-linked prodrug and to carrier- linked prodrugs obtainable by said process, in particular to carrier- linked prodrugs that provide for a controlled or sustained release of a drug from a carrier. In addition, the invention relates to the use of the hydrogel for the preparation of a carrier-linked prodrug.

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14-11-2013 дата публикации

COMPOSITION FOR THE PRODUCTION OF HYDROPHILIC POLYSTYRENE MATERIAL

Номер: CA0002872868A1
Принадлежит:

The invention relates to a composition Z comprising a component B1, a component B2, a component D, a component E and a component P, wherein the component B1 is a polyethylene glycol having a hydroxyl number of from 25 to 600 mg KOH/g and an average molecular weight of 200 to 4000 g/mol; the component B2 is a polyethylene glycol having a hydroxyl number of from 0.1 to 24 mg KOH/g and an average molecular weight of higher than 4000 to about 10,000,000 g/mol; the component D is an earth alkali carbonate, the component E is a phyllosilicate, and the component P is a polystyrene and/or an alloy thereof. Composition Z is suitable to increase the hydrophilic properties of processed solid or foamed polystyrene material, especially for making a film, sheet or food tray.

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11-09-2018 дата публикации

Preparation method of waterproof sealing rubber strip

Номер: CN0108517079A
Принадлежит:

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15-03-2019 дата публикации

Fluororesin composition and prepreg body containing same

Номер: CN0109467858A
Принадлежит:

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04-01-2019 дата публикации

Preparation method of antibacterial hydrophobic sponge

Номер: CN0109134919A
Автор: LU WEI, CAI PANPAN
Принадлежит:

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24-04-2018 дата публикации

Film for VR product packaging and preparation method of film

Номер: CN0107955378A
Автор: WANG SIXIONG
Принадлежит:

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15-06-2018 дата публикации

Conjugated cross-linked polytetrafluoroethylene film and preparation method thereof

Номер: CN0108164891A
Автор: HU WANG
Принадлежит:

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01-06-2018 дата публикации

PE thin film packaging material and preparation method thereof

Номер: CN0108102194A
Автор: WAN ZHANGWEN
Принадлежит:

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29-06-2016 дата публикации

Easy plating electroplating PC/ABS alloy material and its preparation method

Номер: CN0103602053B
Автор:
Принадлежит:

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29-06-2018 дата публикации

ICE FOR THE HEADLIGHTS OF AN AUTOMOBILE PROVIDED WITH A COATING

Номер: FR0003035178B1
Принадлежит: VALEO VISION

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12-06-2020 дата публикации

ROOM TEMPERATURE SOLID PITCH GRANULES

Номер: FR0003055633B1
Автор: MESNIL JEAN-PIERRE
Принадлежит:

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30-03-2018 дата публикации

THERMOPLASTIC COMPOSITION HAS HIGH FLOW

Номер: FR0003030548B1
Принадлежит: RHODIA OPERATIONS

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04-09-2018 дата публикации

폴리에스테르 필름

Номер: KR0101894758B1
Принадлежит: 미쯔비시 케미컬 주식회사

... 본 발명은 우수한 외관 품질 및 대전 방지 성능을 갖는 도포층을 구비한 폴리에스테르 필름에 관한 것이다. 상기 도포층은, 전자 도전성 화합물인 A 성분과, 폴리알킬렌옥사이드, 글리세린, 폴리글리세린, 및 글리세린 또는 폴리글리세린의 알킬렌옥사이드 부가물에서 선택되는 적어도 1종의 화합물 또는 그 유도체인 B 성분과, 소르비톨폴리글리시딜에테르계 가교제, 폴리글리세롤폴리글리시딜에테르계 가교제, 디글리세롤폴리글리시딜에테르계 가교제, 및 폴리에틸렌글리콜디글리시딜에테르계 가교제에서 선택되는 에폭시계 가교제인 C 성분을 함유하는 도포액을 폴리에스테르 필름의 적어도 편면에 도포하여 건조함으로써 폴리에스테르 필름 위에 마련되어 있으며, 상기 도포층 중의 C 성분의 함유량은 5∼60질량%이다.

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01-03-2018 дата публикации

Polyoxyethylene compounds having polyhydroxy end groups and contact lenses

Номер: TW0201806993A
Принадлежит:

Provided is a silicone contact lens that has a surface hydrophilic property and a surface lubricating property. The present invention was achieved by verifying that this silicone contact lens has a surface hydrophilic property and a surface lubricating property, said silicone contact lens having, in a surface thereof, a graft polymer chain that is derived from a polyoxyethylene compound, said polyoxyethylene compound having multiple hydroxyl groups at an end thereof.

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28-08-2014 дата публикации

COMPOSITIONS FOR THE PRODUCTION OF A HYDROPHILIC POLYSTYRENE ARTICLE

Номер: SG11201403848WA
Принадлежит:

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19-03-2020 дата публикации

SYNTHETIC TISSUE GLUE

Номер: US20200085997A1
Принадлежит:

Compositions for use as a tissue glue or sealant are disclosed. The compositions include first and second precursor molecules, wherein the first precursor molecule is a polyoxyethylene-polyoxypropylene block copolymer having at least two nucleophilic groups and the second precursor molecule is a polyoxyethylene-polyoxypropylene block copolymer having at least two electrophilic groups. Biomaterials for use as a tissue glue or sealant, methods of making such biomaterials, devices for applying a biomaterial to a tissue of a patient, methods of sealing a tissue of a patient, and kits also are disclosed.

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13-07-2017 дата публикации

RESIN SHEET, ARTICLE, AND METHOD FOR MANUFACTURING RESIN SHEET

Номер: US20170198437A1
Принадлежит: SUMITOMO BAKELITE CO., LTD.

A resin sheet includes a binder resin; a fibrous filler having a fiber length of equal to or longer than 15 mm and equal to or shorter than 100 mm; and pulp. 1. A resin sheet comprising:a binder resin;a fibrous filler having a fiber length of equal to or longer than 15 mm and equal to or shorter than 100 mm; andpulp.2. The resin sheet according to claim 1 ,wherein a content of the fibrous filler is equal to or more than 15% by mass and equal to or less than 80% by mass of the entire resin sheet.3. The resin sheet according to claim 1 ,wherein the fibrous filler includes a carbon fiber.4. The resin sheet according to claim 1 ,wherein a content of the pulp is equal to or higher than 5% by mass and equal to or lower than 25% by mass of the entire resin sheet.5. The resin sheet according to claim 1 ,wherein the resin sheet is composed of a papermaking product obtained by a papermaking method using a material composition including the binder resin, the fibrous filler, and the pulp.6. An article comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a layer formed of the resin sheet according to .'}7. A method for manufacturing a resin sheet comprising:a step of papermaking using a slurry including a binder resin, a fibrous filler having a fiber length of equal to or longer than 15 mm and equal to or shorter than 100 mm, and pulp. The present invention relates to a resin sheet, an article, and a method for manufacturing a resin sheet.In a variety of fields such as the electrical and electronic field or the automobile industry field, there are cases in which fibrous materials are used as materials for constituting a variety of articles. Examples of the above-described technique include techniques described in Patent Documents 1 to 4.Patent Document 1 describes a technique regarding a carbon fiber web including a carbon fiber bundle and at least one reinforcement fiber bundle. Patent Document 2 describes a technique regarding a carbon fiber composite sheet made of a ...

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18-06-2014 дата публикации

POLYOLEFIN RESIN FOAM PARTICLES AND IN-MOLD FOAMING MOLDED BODY OF SAME

Номер: EP2743295A1
Автор: FUKUZAWA, Jun
Принадлежит:

In order to obtain a flame-retardant polyolefin resin expanding molded product which has excellent in-mold moldability and excellent surface appearance and satisfies the FMVSS flammability even if carbon black is added, polyolefin resin particles containing, with respect to 100 parts by weight of polyolefin resin, (i) 0.03 part by weight to 5 parts by weight of phosphorous flame retardant having a phosphorous content of 7% by weight or more, a melting point of 120°C or more, and a 5% by weight decomposition temperature within a range of 240°C to 320°C and (ii) 0.5 part by weight to 20 parts by weight of carbon black are expanded.

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13-11-2013 дата публикации

Composition for the production of hydrophilic polystyrene material

Номер: EP2662408A1
Принадлежит:

The invention relates to a composition Z comprising a component B1, a component B2, a component D, a component E and a component P, wherein the component B1 is a polyethylene glycol having a hydroxyl number of from 25 to 600 mg KOH/g and an average molecular weight of 200 to 4000 g/mol; the component B2 is a polyethylene glycol having a hydroxyl number of from 0.1 to 24 mg KOH/g and an average molecular weight of higher than 4000 to about 10,000,000 g/mol; the component D is an earth alkali carbonate, the component E is a phyllosilicate, and the component P is a polystyrene and/or an alloy thereof. Composition Z is suitable to increase the hydrophilic properties of processed solid or foamed polystyrene material, especially for making a film, sheet or food tray.

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19-11-1958 дата публикации

Improvements in or relating to the manufacture of transparent cellulosic sheets and films

Номер: GB0000804610A
Принадлежит:

The surface properties of water-sensitive cellulosic sheet material, especially its antisticking properties, are improved by treating the material with a water-soluble salt of a substituted aliphatic diamine of the type RR1N (CH2)nR2R3 (see below) or of a reaction product thereof with ethylene oxide, with an organic carboxylic acid or with a mineral acid, applied as an aqueous solution, and then drying. In the formula, R is an alkyl, alkenyl or alkadienyl group with a straight chain of 8-33 carbon atoms, R1, R2 and R3 may each be as R or may be an hydrogen atom, a methyl group, an ethyl group or an alkyl group with a straight or branched chain of 3-7 carbon atoms, and n is an integer, preferably 2-10. Reaction products of the primary and secondary amines with ethylene oxide may contain 1-10 or more ethylene oxide units per molecule. Specified diamine salts are N-octadecyl-1,3-propylene diamine diacetate, N-octadecenyl-N-methyl ethylene diamine mono lactate and N-octadecenyl-N-methyl ethylene ...

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11-10-2023 дата публикации

Polymer structure comprising base plastic with hydration layer for avoiding biofilm formation thereon

Номер: GB0002617502A
Принадлежит:

Provided is a germ-repellent polymer structure including a base plastic selected from polypropylene homopolymer, polypropylene impact copolymer, or acrylonitrile butadiene styrene; and a hydration layer, the hydration layer including one or more hydrophilic additives formed on the base plastic optionally in the presence of an intermediate plastic that is compatible to both the base plastic and hydrophilic additives for stabilizing the hydration layer on some base plastics. In some embodiment, the introduction of hydration layer to the base plastic through the intermediate plastic imparts germ repellency by introducing sufficient hydroxyl groups onto the surface of the base plastic in order to trap water molecules into a polymer matrix of the base plastic. The change in mechanical strength of the base plastic before and after the introduction of the hydration layer is less than 20% of an original mechanical strength, where the original mechanical strength corresponds to a strength of the ...

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13-05-2021 дата публикации

Stable polyethylene glycol particle dispersions and methods for forming the stable dispersions

Номер: AU2016233693B2
Автор: HOLT JASON, Holt, Jason
Принадлежит:

Stable dispersions of solid polyethylene glycol particles are described in polyalkylene glycol liquids. The stable dispersions have an increased viscosity relative to the liquids without the suspended particles. The stable dispersions can be formed from a melt of the polyethylene glycol particles mixed within the liquid.

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04-07-2019 дата публикации

Mesoporous organic material, useful in particular for extracting uranium(VI) from aqueous media including phosphoric acid, and uses thereof

Номер: AU2017374664A1
Принадлежит: Griffith Hack

The invention relates to a mesoporous organic material which makes it possible to extract, using the liquid-solid extraction technique, the uranium(VI) contained in an aqueous medium including phosphoric acid, with high efficiency and high selectivity for the iron that said medium can likewise contain. The invention also relates to the uses of said material. The material is likely to be obtained by cross-linking polymerisation of a monomer of formula (I) below, wherein: R ...

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02-05-2019 дата публикации

Treated porous material

Номер: AU2017335848A1
Принадлежит: Madderns Pty Ltd

A treated cellulosic material comprising: a cellulosic material having a porous structure defining a plurality of pores, the cellulosic material comprising wood including wood or wood composite materials, at least a portion of the pores containing a treating agent comprising: a polymer comprising a water soluble polyol; and a modifying agent comprising a hydrophobic poly alky lene polyol. A method for preparing a treated cellulosic material comprising: providing a cellulosic material; a first treatment protocol comprising impregnating the cellulosic material with a polymer, the polymer comprising a water-soluble polyol; and a second treatment protocol comprising impregnating the cellulosic material with a modifying agent, the modifying agent comprising a hydrophobic polyalkylene polyol.

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27-08-2020 дата публикации

Surface functionalization

Номер: AU2018300992B2
Принадлежит: Spruson & Ferguson

This invention is in the field of surface modification. In particular, the invention relates to the surface modification of microfluidic devices to alter surface hydrophobicity characteristics.

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26-09-2019 дата публикации

AQUEOUS POLYOLEFIN DISPERSION

Номер: CA0003089683A1
Принадлежит: SMART & BIGGAR LLP

The invention relates to an aqueous polyolefin dispersion comprising from 50 to 100 wt.% of a aqueous dispersion A comprising the following ingredients: from 30 to 90 wt.% of A1, a copolymer of polyethylene and (meth)acrylic acid [E(M)AA] or a mixture of different copolymers of polyethylene and (meth)acrylic acid, from 10 to 70 wt.% of A2, another polymer, not being a copolymer of polyethylene and (meth)acrylic acid, or a mixture of other polymers, and from 0 - 15 wt.% of additive from 0 to 50 wt.% of a compound B, where compound B is a material dispersable or soluble in water and different from any of the ingredients of dispersion A wherein the wt.% of A and B is based on the solid content of the whole aqueous polyolefin dispersion and the wt% of the ingredients of dispersion A is based on the solid content of dispersion A, the sum of the wt.% of ingredients i to iii of dispersion A is 100%.

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04-02-2016 дата публикации

SELF SEALING PERMEABLE AIR BARRIER COMPOSITIONS

Номер: CA0002956944A1
Принадлежит:

There is provided cured coating compositions derived from a one-part, moisture curable composition comprising (a) a polyoxyalkylene polymer having at least one end group derived from an alkoxy silane, and (b) a plasticizer selected from at least one of linear or branched alkyl benzoate having between 8 and 14 carbon atoms in the alkyl chain, and combinations thereof; where the cured coating composition passes ASTM D-1970. There are also provided articles and films made using and methods for using these cured coating compositions.

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04-02-2016 дата публикации

WOOD TREATMENT FOR DIMENSIONAL STABILIZATION

Номер: CA0002949852A1
Принадлежит:

A process is provided for treating wood products including lumber, plywood and other engineered wood products comprising the steps of contacting a composition comprising a polypropylene glycol, a high molecular weight polyethylene glycol, a polyether polyol having low solubility in water, or a polytetrahydrofuran, or hydrophobic polyether polyol, with the wood product. The invention also provides wood products comprising a polypropylene glycol, a high molecular weight polyethylene glycol, a polyether polyol having low solubility in water, or a polytetrahydrofuran, or hydrophobic polyether polyol, that have greater dimensional stability compared to an untreated wood product.

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21-01-2016 дата публикации

NON-VOC PROCESSING AIDS FOR USE IN MANUFACTURING FOAMS USING LOW GLOBAL WARMING POTENTIAL BLOWING AGENTS

Номер: CA0002955293A1
Принадлежит:

A foamable polymeric mixture is provided that includes a polymer composition, at least one blowing agent, and at least one non-VOC processing aid comprising one or more of an adipate ester; benzoate; fatty acids and their derivatives, propylene carbonate; ethylene oxide/propylene oxide block copolymer; styrene-methyl methacrylate copolymer; and a dispersion of organic salt of a fatty acid in copolymer. The blowing agent comprising at least one of carbon dioxide, hydrofluoroolefins, hydrochlorofluoroolefins and hydrofluorocarbons, and mixtures thereof.

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16-04-2009 дата публикации

HYDROPHILIC POROUS SUBSTRATES

Номер: CA0002702291A1
Принадлежит:

Hydrophilic porous substrates, methods of making hydrophilic porous substrates from hydrophobic polymers are disclosed.

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12-05-2011 дата публикации

POLYSACCHARIDE BASED HYDROGELS

Номер: CA0002780294A1
Принадлежит:

Polysaccharide based hydrogel compositions and methods of making and using the same are provided. The subject polysaccharide based hydrogel compositions are prepared by combining a polysaccharide component with a hydrophilic polymer and a cross-linking agent. Also provided are kits and systems for use in preparing the subject compositions.

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14-07-2020 дата публикации

COMPOSITION FOR THE PRODUCTION OF HYDROPHILIC POLYSTYRENE MATERIAL

Номер: CA0002872868C

The invention relates to a composition Z comprising a component B1, a component B2, a component D, a component E and a component P, wherein the component B1 is a polyethylene glycol having a hydroxyl number of from 25 to 600 mg KOH/g and an average molecular weight of 200 to 4000 g/mol; the component B2 is a polyethylene glycol having a hydroxyl number of from 0.1 to 24 mg KOH/g and an average molecular weight of higher than 4000 to about 10,000,000 g/mol; the component D is an earth alkali carbonate, the component E is a phyllosilicate, and the component P is a polystyrene and/or an alloy thereof. Composition Z is suitable to increase the hydrophilic properties of processed solid or foamed polystyrene material, especially for making a film, sheet or food tray.

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26-06-2014 дата публикации

POLYOLEFIN-BASED CABLE COMPOUND FORMULATION FOR IMPROVED FOAMABILITY AND ENHANCED PROCESSABILITY

Номер: CA0002894502A1
Принадлежит:

A composition comprising a composition of an ethylene-based thermoplastic polymer comprising high density polyethylene (HDPE) blended with a modifier component, an optional blowing agent, optionally with carbon black and/or one or more additives, to make foamed articles.

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03-01-2013 дата публикации

ORGANIC INFRARED ATTENUATION AGENTS

Номер: CA0002839446A1
Принадлежит:

Organic infrared attenuation agents have been developed to improve the thermal insulation properties of polymeric foams such as polystyrene low density foams. The organic infrared attenuation agents can include polyols such as sorbitol, maltitol, and poly(ethylene glycol), polysaccharides such as starch or cellulose, and infrared attenuation polyesters such as polybutylene terephthalate. The organic attenuation agents include aromatic compounds or carbon oxygen bonds that are effective in absorbing infrared radiation at the desired wavelengths.

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27-05-1999 дата публикации

THERMOPLASTIC POLYMER FILM COMPRISING A FLUOROCHEMICAL COMPOUND

Номер: CA0002310689A1
Принадлежит:

The invention provides a method of making a film comprising the steps of: (A) providing a film comprising a layer of thermoplastic polymer having dispersed therein a fluorochemical hydrophilicity imparting compound according to the formula: Rf-Q-Z-X-T, wherein Rf represents a partially or fully fluorinated aliphatic group having at least 3 carbon atoms, Q is a linking group or a covalent bond, Z is a poly(oxyalkylene) group, X is an oxygen atom or NR wherein R is a hydrogen atom or an alkyl or aryl group, and T is a hydrogen atom or an organic group having no more than 6 carbon atoms; (B) applying a coating comprising at least one non-volatile component on said film; and (C) when said coating contains volatile components, drying said coating to remove said volatile components from said coating. Further provided are single- and multi-layer films.

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11-05-2018 дата публикации

For fixing the protein of rubber-like material and its lighting, diagnostic and biological catalytic use in

Номер: CN0108028302A
Автор:
Принадлежит:

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23-05-2012 дата публикации

Amphiphilic block copolymers and inorganic nanofillers to enhance performance of thermosetting polymers

Номер: CN0101772546B
Принадлежит:

Curable compositions, cured compositions, and methods of forming the same, including an epoxy resin, a curing agent, an amphiphilic toughening agent, and an inorganic nanofiller, wherein the toughening agent forms a second phase having at least one dimension being on the nanometer scale.

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22-11-2019 дата публикации

PROCESS FOR PRODUCING POROUS SILICONE MATERIALS

Номер: FR0003081163A1
Принадлежит:

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18-09-2018 дата публикации

생체분자 부착이 감소된 표면을 갖는 중합성 기재 및 이러한 기재의 열가소성 물품

Номер: KR1020180103040A
Принадлежит:

... 각각이 XPS에 의해 측정하는 경우, 1 내지 30 원자%의 산소, 0.1 내지 30 원자%의 질소, 또는 둘 모두를 포함하는 탄소 또는 규소 화합물을 포함하는, 처리된 접촉 표면을 갖는 기재가 기술된다. 처리된 접촉 표면은 본 방법에 따른 처리 전에 표면의 생체분자 회수 백분율보다 큰 생체분자 회수 백분율을 갖는다.

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30-07-2018 дата публикации

POROUS PTFE MEMBRANES FOR METAL REMOVAL

Номер: SG10201709901YA
Принадлежит:

POROUS PTFE MEMBRANES FOR METAL REMOVAL Disclosed is a porous membrane comprising a porous polytetrafluoroethylene (PTFE) substrate and a coating comprising a copolymer of formula (I): H-[-O-CH(Rf)-CH2-]m-[-O-CHM-CH2-]n--[-O-CHL-CH2-]s-OH (I), wherein Rf is perfluoro- substituted alkyl or perfluoro-substituted alkyloxy alkyl; M is -CH2-O-(CH2)3-S-(CHP)t-Y, wherein P is hydrogen or -CH2COOH, and for example, Y is -COOH or -SO3H, R is hydrogen or alkyl, L is -CH2-O-CH2-CH=CH2, m and n are each independently from about 10 to about 1000, n:s ranges from 0.3:0.7 to 1:0, and t is 0 or 1. Also disclosed is a method of preparing the porous membrane and a method of filtering a fluid, such as isopropanol, containing dissolved metals at a low concentration by the use of such membrane. (Figure 1) ...

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06-06-2013 дата публикации

CELLULOSE BLENDS WITH ENHANCED WATER RETENTION AND THEIR USE IN IRRIGATION

Номер: WO2013078547A1
Принадлежит:

Water-retaining gel compositions, methods of making water-retaining gel compositions, and the uses thereof for enhancing soils, preparing plant growth media and facilitating the growth of plants therein are disclosed.

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18-05-2021 дата публикации

Methods and systems to rapidly hydrate dry polyacrylamides polymers in a chemical delivery matrix

Номер: US0011008495B1

A composition comprising a water-soluble powder that is agglomerated by a water-soluble wax, which is then allowed to cool and re-solidify to product clusters of the water-soluble powder.

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23-02-2021 дата публикации

Method for preparing nanoporous polysulfone-based polymers

Номер: US0010927229B2
Принадлежит: NANJING TECH UNIVERSITY

The present invention relates to a method for preparing nanoporous polysulfone-based polymers, including: a copolymer of a polysulfone polymer and a polar polymer is immersed into a compound swelling agent, and maintained for at least 1 minute above room temperature; the compound swelling agent is a “solvent pair” composed of the mixture of solvent A and solvent B; the solvent A has high affinity with the polysulfone polymer; and the solvent B has high affinity with the polar polymer; the treated copolymer is taken out from the compound swelling agent and then dried to remove the solvent to obtain the nanoporous polysulfone-based polymers.

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14-10-2021 дата публикации

HYDROGEL COMPOSITION AND HYDROGEL LENS

Номер: US20210315807A1
Принадлежит:

A hydrogel composition and a hydrogel lens are provided. The hydrogel composition includes a hydrophilic monomer, a cross-linker, an initiator, and a rotaxane compound. In the hydrogel composition, a content range of the hydrophilic monomer is between 60 wt % and 99.85 wt %, a content range of the cross-linker is between 0.01 wt % and 1 wt %, a content range of the initiator is between 0.01 wt % and 2 wt %, and a content range of the rotaxane compound is between 0.1 wt % and 15 wt %. The rotaxane compound further includes at least one cyclic molecule and at least one linear molecule threading through the at least one cyclic molecule, and a weight ratio of the rotaxane compound relative to the hydrophilic monomer is between 1:6 and 1:99. 1. A hydrogel composition , comprising:a hydrophilic monomer, a content range of the hydrophilic monomer in the hydrogel composition being between 60 wt % and 99.85 wt. % based on a total weight of the hydrogel composition;a cross-linker, a content range of the cross-linker in the hydrogel composition being between 0.01 wt % and 1 wt % based on the total weight of the hydrogel composition;an initiator, a content range of the initiator in the hydrogel composition being between 0.01 wt % and 2 wt % based on the total weight of the hydrogel composition; anda rotaxane compound, a content range of the rotaxane compound in the hydrogel composition being between 0.1 wt % and 15 wt % based on the total weight of the hydrogel composition; wherein the rotaxane compound includes at least one cyclic molecule and at least one linear molecule threading through the at least one cyclic molecule;wherein a weight ratio of the rotaxane compound relative to the hydrophilic monomer is between 1:6 and 1:99.2. The hydrogel composition according to claim 1 , wherein the content range of the rotaxane compound in the hydrogel composition is between 0.1 wt % and 12 wt %.3. The hydrogel composition according to claim 2 , wherein the content range of the ...

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27-02-2016 дата публикации

КОМПОЗИЦИИ ДЛЯ ПРОИЗВОДСТВА ИЗДЕЛИЙ ИЗ ГИДРОФИЛЬНОГО ПОЛИСТИРОЛА

Номер: RU2014132552A
Принадлежит:

... 1. Применение композиции Ζ, содержащей компонент A, компонент B и компонент P, для усиления гидрофильности твердого невспененного или вспененного полистирола, где компонент A представляет собой алкилсульфонат, алкилбензолсульфонат и/или олефинсульфонат,компонент B представляет собой полиэтиленгликоль, икомпонент P представляет собой полистирол и/или его сплав.2. Применение по п. 1, где композиция Ζ представляет собой мастербатч или компаунд.3. Применение по п. 1, где композиция Ζ содержит от 0,06 до 90 вес.% суммы компонентов A и B.4. Применение по п. 1, где композиция Ζ содержит компонент A и компонент B с весовым отношением компонента A к компоненту B от 0,1 до 10,0.5. Применение по п. 1, где композиция Ζ содержит0,2-30 вес.% компонента A,0,4-60 вес.% компонента B,10-99,4 вес.% компонента P,где вес. % рассчитаны относительно общего веса композиции Ζ.6. Применение по п. 1, где композиция Ζ представляет собой компаунд и содержит0,0167-1,47 вес.% компонента A,0,0333-2,93 вес.% компонента ...

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12-07-2021 дата публикации

Номер: RU2019143626A3
Автор:
Принадлежит:

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15-08-2011 дата публикации

EO/PO BLOCKCOPOLYMERE ONE AS STABILIZERS FOR PUR-FOAMS

Номер: AT0000518904T
Принадлежит:

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04-08-2016 дата публикации

Phenol resin foam

Номер: AU2014370974A1

A phenol resin foam which comprises a phenol resin, a hydrocarbon having six or fewer carbon atoms, and at least one halogenated hydroolefin selected from the group consisting of hydrofluoroolefins and hydrochlorofluoroolefins and which has a density of 10 to 150kg/m ...

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04-07-2019 дата публикации

Wood treatment for dimensional stabilization

Номер: AU2015298181B2
Принадлежит: AJ PARK

A process is provided for treating wood products including lumber, plywood and other engineered wood products comprising the steps of contacting a composition comprising a polypropylene glycol, a high molecular weight polyethylene glycol, a polyether polyol having low solubility in water, or a polytetrahydrofuran, or hydrophobic polyether polyol, with the wood product. The invention also provides wood products comprising a polypropylene glycol, a high molecular weight polyethylene glycol, a polyether polyol having low solubility in water, or a polytetrahydrofuran, or hydrophobic polyether polyol, that have greater dimensional stability compared to an untreated wood product.

Подробнее
12-01-2017 дата публикации

Wood treatment for dimensional stabilization

Номер: AU2015298181A1
Принадлежит: AJ PARK

A process is provided for treating wood products including lumber, plywood and other engineered wood products comprising the steps of contacting a composition comprising a polypropylene glycol, a high molecular weight polyethylene glycol, a polyether polyol having low solubility in water, or a polytetrahydrofuran, or hydrophobic polyether polyol, with the wood product. The invention also provides wood products comprising a polypropylene glycol, a high molecular weight polyethylene glycol, a polyether polyol having low solubility in water, or a polytetrahydrofuran, or hydrophobic polyether polyol, that have greater dimensional stability compared to an untreated wood product.

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22-03-2018 дата публикации

HYDROGELS BASED ON FUNCTIONALIZED POLYSACCHARIDES

Номер: CA0003036744A1
Принадлежит: BENOIT & COTE INC.

The present invention relates to functionalized hydrogel networks grafted with at least one moiety for use in numerous fields, from cosmetics to surgery and medicine.

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20-10-2016 дата публикации

HYDROPHILIC COATINGS AND METHODS OF FORMING THE SAME

Номер: CA0002982591A1
Принадлежит:

Hydrophilic coatings including a base coat layer and a top coat layer wherein at least one of the base coat and top coat compositions that form the hydrophilic coatings comprises a diacrylate compound have a number average molecular weight less than 1000.

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29-09-2016 дата публикации

PHENOLIC RESIN FOAM AND METHOD FOR PRODUCING SAME

Номер: CA0002978851A1
Принадлежит: GOUDREAU GAGE DUBUC

The purpose of the present invention is to provide: a phenol resin foam having low environmental impact and high compressive strength, as well as exceptional handling properties during construction and low costs associated with securing; and a method for producing the same. The phenol resin foam of the present invention is characterized by: containing at least one selected from the group consisting of chlorinated hydrofluoroolefins, non-chlorinated hydrofluoroolefins, and halogenated hydrocarbons; and having a density of from 20 kg/m3 to 100 kg/m3, a closed cell ratio of 80-99%, and a 10% compressive strength and density that satisfy the following relationship. C = 0.5X - 7 (In the formula, C represents the 10% compressive strength (N/cm2), and X represents the density (kg/m3) ...

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05-11-2015 дата публикации

POLYMER FOAMS

Номер: CA0002948146A1
Принадлежит:

A polymer composition that includes a polyolefin having a molecular weight distribution of greater than or equal to 8 as measured by GPC and a metallic acrylate salt. The present disclosure includes a process. The process includes supplying a polymer composition which includes a polyolefin resin having a molecular weight distribution of greater than or equal to 8 as measured by GPC and a metallic acrylate salt. The process further includes mixing polymer composition and the foaming agent to form a polymer foam.

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06-03-2014 дата публикации

POROUS GELS AND USES THEREOF

Номер: CA0002883448A1
Принадлежит:

Hydrogels having a porosity of at least about 5%, comprising a first polymeric material comprising a polymer derived from a monomer with a vinyl functionality, and a second polymeric material having a polyglycol other than polyethylene glycol are described. A method of forming a porous hydrogel, by mixing in a reaction vessel, a mixture comprising a monomer having a vinyl functionality, a crosslinker, an organic solvent, a first polymeric material comprising polyacrylic acid and a second polymeric material comprising a polyglycol other than polyethylene glycol, and mixing the mixture to form the hydrogel having a porosity of at least about 5%. Also described are an agricultural method and a system (a seed in a seed container).

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12-05-2011 дата публикации

FRAGMENTED HYDROGELS

Номер: CA0002780274A1
Принадлежит:

Fragmented polysaccharide based hydrogel compositions and methods of making and using the same are provided. The subject polysaccharide based hydrogel compositions are prepared by combining a polysaccharide component with a hydrophilic polymer and a cross-linking agent. Also provided are kits and systems for use in preparing the subject compositions.

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12-10-2018 дата публикации

Flame-retardant heat shrinkable film and manufacturing method thereof

Номер: CN0108641310A
Автор: TANG QIANJUN
Принадлежит:

Подробнее
11-01-2019 дата публикации

Low smell corrosion-resistant HIPS composite material for refrigerator and preparation method thereof

Номер: CN0109181197A
Автор: LIU BOLIN
Принадлежит:

Подробнее
24-06-2016 дата публикации

HIGH FLOW THERMOPLASTIC COMPOSITION

Номер: FR0003030548A1
Принадлежит: RHODIA OPERATIONS

L'invention concerne une composition thermoplastique à haute fluidité à l'état fondu, comprenant au moins : (a) une matrice polymérique thermoplastique ; (b) un oligomère choisi parmi les oligomères d'ester cyclique(s), les oligomères d'éther et leurs mélanges ; et (c) un polymère phénolique ; lesdits composés (b) et (c) étant présents dans un rapport pondéral (c)/(b) variant de 0,25 à 6 de préférence d'environ 0,75 à 2,75. L'invention concerne également un procédé de fabrication d'un article composite à partir d'une telle composition par imprégnation d'un renfort tel qu'une étoffe ou une préforme, l'article composite obtenu selon ce procédé, et l'utilisation d'un oligomère (b) en association avec au moins un polymère phénolique (c), à titre d'additif fluidifiant dans une matrice polymérique thermoplastique.

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18-05-2016 дата публикации

광경화성 조성물, 경화물 및 그의 제조 방법, 그리고 관련 제품 및 그의 제조 방법

Номер: KR1020160055779A
Принадлежит:

... 낮은 적산 광량으로도 단시간에 경화 가능하고, 작업성이 우수한 속경화형의 광경화성 조성물을 제공한다. (A) 가교성 규소기 함유 유기 중합체와, (B) 광염기발생제와, (C1) Si-F 결합을 갖는 규소 화합물 및/또는, (C2) 3불화 붕소, 3불화 붕소의 착체, 불소화제 및 다가 플루오로 화합물의 알칼리 금속염으로 이루어지는 군으로부터 선택되는 1종 이상의 불소계 화합물을 함유하도록 했다. 상기 (B) 광염기 발생제가, 광잠재성 제3급 아민인 것이 바람직하다.

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06-03-2018 дата публикации

artigo

Номер: BR112017005216A2
Принадлежит:

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11-08-2017 дата публикации

Номер: TWI595045B
Принадлежит:

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24-01-2013 дата публикации

ANTISTATIC NON-CROSSLINKED FOAMED POLYETHYLENE RESIN PARTICLES AND MOLDED NON-CROSSLINKED FOAMED POLYETHYLENE RESIN BODY

Номер: WO2013011951A1
Автор: NAKAYAMA, Kiyotaka
Принадлежит:

Non-crosslinked foamed polyethylene resin particles that have a bulk density (BD) of 10 to 100 g/L and are obtained by foaming polyethylene resin particles that have a density of 0.920 to 0.940 g/cm3 and contain 0.1 to 3 weight parts of an antistatic agent per 100 weight parts of polyethylene resin. Said non-crosslinked foamed polyethylene resin particles are characterized by a shrinkage ratio of 3% to 30% as obtained according to formula (1) and make it easy to manufacture a molded non-crosslinked foamed polyethylene resin body that exhibits a low degree of contraction with respect to a mold, a low degree of deformation, good surface stretch, and antistatic properties. (1) Shrinkage ratio = (BD−VBD)/VBD × 100% BD represents the bulk density of the non-crosslinked foamed polyethylene resin particles at 23°C and 0.1 MPa (standard atmospheric pressure), and VBD represents the bulk density of said non-crosslinked foamed polyethylene resin particles at 23°C and a reduced pressure of 0.002 MPa ...

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19-02-2019 дата публикации

Preparation method of superabsorbent polymer and superabsorbent polymer prepared thereby

Номер: US0010208171B2
Принадлежит: LG Chem, Ltd., LG CHEMICAL LTD

Provided are a preparation method of a superabsorbent polymer, and a superabsorbent polymer prepared thereby. The preparation method of the superabsorbent polymer according to the present disclosure enables preparation of the superabsorbent polymer which is excellent in absorption properties such as centrifuge retention capacity and absorbency under pressure, and also has improved permeability. In addition, the preparation method exhibits excellent operability during the preparation (in particular, surface crosslinking of the polymer) and excellent productivity due to low production of coarse particles and fine particles.

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02-01-2018 дата публикации

Porous PTFE membranes for metal removal

Номер: US0009855534B1
Принадлежит: Pall Corporation, PALL CORP

Disclosed is a porous membrane comprising a porous polytetrafluoroethylene (PTFE) substrate and a coating comprising a copolymer of formula (I): H—[—O—CH(Rf)—CH2—]m—[—O—CHM-CH2—]n—[—O—CHL-CH2—]s—OH (I), wherein Rf is perfluoro-substituted alkyl or perfluoro-substituted alkyloxy alkyl; M is —CH2—O—(CH2)3—S—(CHZ)t—Y, wherein Z is hydrogen or —CH2COOH, and for example, Y is —COOH or —SO3H, R is hydrogen or alkyl, L is —CH2—O—CH2—CH═CH2, m and n are each independently from about 10 to about 1000, n:s ranges from 0.3:0.7 to 1:0, and t is 0 or 1. Also disclosed is a method of preparing the porous membrane and a method of filtering a fluid, such as isopropanol, containing dissolved metals at a low concentration by the use of such membrane.

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23-10-2014 дата публикации

POLANILINE BASED MEMBRANES FOR SEPARATION OF CARBON DIOXIDE AND METHANE

Номер: US20140311347A1

Various embodiments demonstrate that an in-situ polymerization enables deposition of a homogeneous polyaniline layer with a controlled thickness on top of a porous polypropylene support. Photografting and subsequent modification with diamines affords composite membranes featuring both high permeability and selectivity that are well suited for applications such as separation of carbon dioxide from a natural gas.

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28-09-2017 дата публикации

FRAGMENTED HYDROGELS

Номер: US20170274082A1
Принадлежит:

Fragmented polysaccharide based hydrogel compositions and methods of making and using the same are provided. The subject polysaccharide based hydrogel compositions are prepared by combining a polysaccharide component with a hydrophilic polymer and a cross-linking agent. Also provided are kits and systems for use in preparing the subject compositions.

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21-02-2013 дата публикации

Polysaccharide Based Hydrogels

Номер: US20130045182A1
Принадлежит: Individual

Polysaccharide based hydrogel compositions and methods of making and using the same are provided. The subject polysaccharide based hydrogel compositions are prepared by combining a polysaccharide component with a hydrophilic polymer and a cross-linking agent. Also provided are kits and systems for use in preparing the subject compositions.

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28-11-2013 дата публикации

Electrospinning of ptfe with high viscosity materials

Номер: US20130316103A1
Принадлежит: Zeus Industrial Products Inc

An improved process for forming a PTFE mat is described. The process includes providing a dispersion with PTFE, a fiberizing polymer and a solvent wherein said dispersion has a viscosity of at least 50,000 cP. An apparatus is provided which comprises a charge source and a target a distance from the charge source. A voltage source is provided which creates a first charge at the charge source and an opposing charge at the target. The dispersion is electrostatically charged by contact with the charge source. The electrostatically charged dispersion is collected on the target to form a mat precursor which is heated to remove the solvent and the fiberizing polymer thereby forming the PTFE mat.

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06-01-2022 дата публикации

Bioadhesive for Soft Tissue Repair

Номер: US20220001074A1

The present invention provides compositions and methods for repair and reconstruction of defects and injuries to soft tissues. Some aspects of the invention provide tissue adhesives comprising a hybrid hydrogel by using a naturally derived polymer, gelatin and a synthetic polymer, polyethylene glycol, wherein the hydrogel is biocompatible, biodegradable, transparent, strongly adhesive to corneal tissue, and have a smooth surface and biomechanical properties similar to the cornea.

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07-01-2016 дата публикации

Electrospinning of ptfe with high viscosity materials

Номер: US20160002430A1
Принадлежит: Zeus Industrial Products Inc

An improved process for forming a PTFE mat is described. The process includes providing a dispersion with PTFE, a fiberizing polymer and a solvent wherein said dispersion has a viscosity of at least 50,000 cP. An apparatus is provided which comprises a charge source and a target a distance from the charge source. A voltage source is provided which creates a first charge at the charge source and an opposing charge at the target. The dispersion is electrostatically charged by contact with the charge source. The electrostatically charged dispersion is collected on the target to form a mat precursor which is heated to remove the solvent and the fiberizing polymer thereby forming the PTFE mat.

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05-01-2017 дата публикации

LOW TEMPERATURE PROCESSES FOR PRODUCING DRY CELLULOSE BASED FOAMS

Номер: US20170002168A1
Принадлежит:

A composition comprising a gelling agent is provided. The gelling agent consists essentially of a cellulose ether based gelling polymer and the composition is a rigid foam at 20 degrees Celsius. The composition may also comprise an active ingredient. Also provided is a process of making the composition comprising drying a foamed liquid composition comprising the gelling agent at low temperatures. The foamed liquid composition may also comprise an active ingredient. 1. A composition comprising:a gelling agent, wherein the gelling agent consists essentially of a cellulose based gelling polymer,wherein the cellulose based gelling polymer has a viscosity of between about 2 and about 4000 centipoise in a 2 percent by weight solution at about 20 degrees Celsius, andwherein the composition is a rigid foam at about 20 degrees Celsius.2. The composition of claim 1 , further comprising an active ingredient.3. The composition of or claim 1 , wherein the cellulose based gelling polymer is hydroxypropyl methylcellulose claim 1 , methylcellulose claim 1 , or a combination thereof.4. The composition of claim 1 , wherein the cellulose based gelling polymer has a viscosity of between about 2 and about 100 centipoise.5. The composition of claim 1 , wherein the cellulose based gelling polymer has a viscosity of between about 2 and about 10 centipoise.6. The composition of claim 1 , wherein the composition is dispersible in water within 10 seconds with agitation.7. The composition of claim 1 , wherein the composition disintegrates without the use of water.8. The composition of claim 1 , wherein the active ingredient is susceptible to degradation at temperatures above 50 degrees Celsius.9. The composition of claim 1 , wherein the active ingredient is vitamin C claim 1 , a botanical product claim 1 , or a pigment.10. The composition of claim 1 , wherein the composition comprises claim 1 , by volume claim 1 , between about 20 and about 99 percent air.11. The composition of claim 1 , ...

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02-01-2020 дата публикации

Composite and production method thereof

Номер: US20200002455A1

A composite including a plurality of block copolymer chains dispersed in a base polymer, the block copolymer chains including a polymer block (A) and a polymer block (B) having lower affinity for the base polymer than that of the polymer block (A), wherein each of the block copolymer chains has the polymer block (A) at two or more locations of the block copolymer chain, and in at least some of the block copolymer chains, the polymer blocks (A) are at least partially located in the base polymer and the polymer blocks (B) are at least partially exposed from the base polymer.

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14-01-2016 дата публикации

Method for manufacturing foamed polypropylene-resin particles

Номер: US20160009887A1
Автор: Jun Fukuzawa
Принадлежит: Kaneka Corp

Foamed polypropylene-resin particles are obtained by dispersing polypropylene-resin particles containing polyethylene glycol and/or glycerin together with an aqueous dispersion medium in a pressure-resistant container; introducing carbon dioxide gas as a foaming agent into the pressure-resistant container; impregnating the polypropylene-resin particles with the foaming agent under a heating and pressure condition; and then discharging the polypropylene-resin particles into an area having a lower pressure than an internal pressure of the pressure-resistant container and having an atmosphere temperature of higher than 80° C. and not higher than 110° C. The foamed polypropylene-resin particles can yield an in-mold foam molded body at a low heated water vapor pressure for molding, do not lose moldability at a high heated water vapor pressure for molding, have a wide heated water vapor range for molding, exhibit good moldability even when a mold with a complicated shape, a large mold, or a similar mold is used.

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14-01-2016 дата публикации

METHOD FOR PREPARING MACROPOROUS POLYMETHYL METHACRYLATE

Номер: US20160009892A1
Принадлежит: COSMAX CO., LTD.

A method for preparing macroporous polymethyl methacrylate (PMMA) particles includes the steps of: (a) dissolving a polymethyl methacrylate polymer and Pluronic polymer into an organic solvent; (b) introducing the mixed solution of step (a) to an aqueous solution containing a surfactant to carry out emulsion polymerization; (c) heating the resultant product of step (b) to allow evaporation of the organic solvent; and (d) washing and drying the porous polymethyl methacrylate particles remaining after the evaporation. 1. A method for preparing macroporous polymethyl methacrylate (PMMA) particles , comprising the steps of:(a) dissolving a polymethyl methacrylate polymer and Pluronic polymer into an organic solvent;(b) introducing the mixed solution of step (a) to an aqueous solution containing a surfactant to carry out emulsion polymerization;(c) heating the resultant product of step (b) to allow evaporation of the organic solvent; and(d) washing and drying the porous polymethyl methacrylate particles remaining after the evaporation.2. The method for preparing macroporous polymethyl methacrylate particles according to claim 1 , wherein the polymethyl methacrylate and Pluronic polymer are used in step (a) at a weight ratio of 9:1-1:9 (polymethyl methacrylate:Pluronic polymer).3. The method for preparing macroporous polymethyl methacrylate particles according to claim 1 , wherein the organic solvent in step (a) is selected from the group consisting of methylene chloride claim 1 , n-hexanone claim 1 , methyl isopropyl ketone claim 1 , toluene and isoamyl alcohol.4. The method for preparing macroporous polymethyl methacrylate particles according to claim 1 , wherein the organic solvent in step (a) is used at a ratio (w/v) of 0.01-1 g/mL based on the combined weight of the polymethyl methacrylate and Pluronic polymer.5. The method for preparing macroporous polymethyl methacrylate particles according to claim 1 , wherein the surfactant in step (b) is at least one selected ...

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11-01-2018 дата публикации

UNIVERSAL PIGMENT PREPARATION

Номер: US20180010007A1
Принадлежит:

A universal pigment preparation including a flocculation-stabilizing medium including (a1) reaction products of di- or polycarboxylic acids or hydroxycarboxylic acids with di- or polyols, and (a2) reaction products of alkylene oxides with alkoxylatable compounds, and at least one pigment. Paints, varnishes, printing inks, coating materials, floor coatings, potting compounds and filling compounds may be made using the universal pigment preparation. 1. A universal pigment preparation comprisinga flocculation-stabilizing medium comprising{'b': '1', '(a) reaction products of di- or polycarboxylic acids or hydroxycarboxylic acids with di- or polyols and'}{'b': '2', '(a) reaction products of alkylene oxides with alkoxylatable compounds, and'}at least one pigment.2. The universal pigment preparation according to claim 1 , wherein the weight ratio of flocculation-stabilizing medium to pigment is 95:5 to 5:95.312. The universal pigment preparation according to claim 1 , wherein the weight ratio of reaction products (a) to reaction products (a) is 10:90 to 90:10.4. The universal pigment preparation according to claim 1 , wherein the di- or polycarboxylic acids are saturated and/or unsaturated and/or aromatic di- or polycarboxylic acids and the anhydrides or esters thereof.5. The universal pigment preparation according to claim 4 , wherein the di- or polycarboxylic acids are mixtures of saturated and α claim 4 ,β-unsaturated di- or polycarboxylic acids in a molar ratio of 1:99 to 99:1.6. The universal pigment preparation according to claim 4 , wherein the di- or polycarboxylic acids are citraconic claim 4 , fumaric claim 4 , itaconic claim 4 , maleic and/or mesaconic acid claim 4 , phthalic acid claim 4 , isophthalic acid claim 4 , terephthalic acid claim 4 , cyclohexane-1 claim 4 ,4-dicarboxylic acid claim 4 , malonic acid claim 4 , succinic acid claim 4 , glutaric acid claim 4 , methyltetra- and m ethyl hexahydrophthal i c acid claim 4 , hexahydrophthalic acid claim 4 , ...

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14-01-2021 дата публикации

AQUEOUS POLYOLEFIN DISPERSION

Номер: US20210009766A1
Принадлежит:

The invention relates to an aqueous polyolefin dispersion comprising from 50 to 100 wt. % of a aqueous dispersion A comprising the following ingredients: from 30 to 90 wt. % of A1, a copolymer of polyethylene and (meth)acrylic acid [E(M)AA] or a mixture of different copolymers of polyethylene and (meth)acrylic acid, from 10 to 70 wt. % of A2, another polymer, not being a copolymer of polyethylene and (meth)acrylic acid, or a mixture of other polymers, and from 0-15 wt. % of additive from 0 to 50 wt. % of a compound B, where compound B is a material dispersable or soluble in water and different from any of the ingredients of dispersion A wherein the wt. % of A and B is based on the solid content of the whole aqueous polyolefin dispersion and the wt % of the ingredients of dispersion A is based on the solid content of dispersion A, the sum of the wt. % of ingredients i to iii of dispersion A is 100%. 1. An aqueous polyolefin dispersion comprising a. from 30 to 90 wt. % of A1, a copolymer of polyethylene and (meth)acrylic acid [E(M)AA] or a mixture of different copolymers of polyethylene and (meth)acrylic acid,', 'b. from 10 to 70 wt. % of A2, another polymer, not being a copolymer of polyethylene and (meth)acrylic acid, or a mixture of other polymers, and', 'c. from 0-15 wt. % of additive,, 'a. from 50 to 100 wt. % of an aqueous dispersion A comprising the following ingredientsb. from 0 to 50 wt. % of a compound B, where compound B is a material dispersable or soluble in water and different from any of the ingredients of dispersion A, the wt. % of aqueous dispersion A and compound B is based on the solid content of the whole aqueous polyolefin dispersion,', 'the wt % of the ingredients of dispersion A is based on the solid content of dispersion A,', 'the sum of the wt. % of ingredients a.-c. of dispersion A is 100%, and', 'A2 comprises one or more of copolymers of ethylene and vinyl acetate (EVA), copolymers of ethylene and vinyl acetate (EVA) modified with maleic ...

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21-01-2021 дата публикации

POLY(VINYL ALCOHOL) FILM AND PRODUCTION METHOD FOR POLARIZING FILM

Номер: US20210017346A1
Принадлежит: Sekisui Chemical Co., Ltd.

The present invention relates to a polyvinyl alcohol film comprising a vinyl alcohol-based polymer, wherein, when the polyvinyl alcohol film is measured by a solid echo method using pulse NMR at 60° C. for waveform separation of a free induction decay curve of 1H spin-spin relaxation into three curves derived from three components a component A, a component B, and a component C in order of short relaxation time, the component B has a resulting relaxation time of 0.03 milliseconds or more and 0.05 milliseconds or less, and a resulting component ratio of 30% or more and 50% or less. From the polyvinyl alcohol film according to the present invention, a polarizing film having good polarization performance can be manufactured without the occurrence of unevenness of dyeing. 1. A polyvinyl alcohol film comprising a vinyl alcohol-based polymer ,wherein, when the polyvinyl alcohol film is measured by a solid echo method using pulse NMR at 60° C. for waveform separation of a free induction decay curve of 1H spin-spin relaxation into three curves derived from three components a component A, a component B, and a component C in order of short relaxation time, the component B has a resulting relaxation time of 0.03 milliseconds or more and 0.05 milliseconds or less, and a resulting component ratio of 30% or more and 50% or less.2. The polyvinyl alcohol film according to claim 1 , wherein the vinyl alcohol-based polymer has a degree of saponification of 99 mol % or more.3. The polyvinyl alcohol film according to claim 1 , wherein the vinyl alcohol-based polymer has a degree of polymerization of 1500 or more and 4000 or less.4. The polyvinyl alcohol film according to claim 1 , comprising a plasticizer.5. The polyvinyl alcohol film according to claim 1 , for use in a polarizing film.6. A method for manufacturing a polarizing film comprising using the polyvinyl alcohol film according to .7. The method for manufacturing a polarizing film according to claim 6 , comprising steps of ...

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10-02-2022 дата публикации

A RIGID POLYURETHANE FOAM FORMULATION AND FOAM MADE THEREFROM

Номер: US20220041828A1
Принадлежит:

A rigid polyurethane foam formulation comprising a polyester polyol having a hydroxyl number of from 150 to 600 mg KOH/g and a functionality of at least 2, a blowing agent comprising water and an auxiliary blowing agent, a non-silicone organic surfactant, greater than 0.1% to less than 3.7% of a cyclic siloxane, by weight based on the total weight of the foam formulation, a catalyst, and optionally a flame retardant; and a polyisocyanate; such that the isocyanate index is in the range of from 100 to 500, a rigid polyurethane foam formed from the foam formulation; and a method of forming a rigid polyurethane foam. 1. A rigid polyurethane foam formulation comprising:a polyester polyol having a hydroxyl number of from 150 to 600 mg KOH/g and a functionality of at least 2,a blowing agent comprising water and an auxiliary blowing agent,a non-silicone organic surfactant,greater than 0.1% to less than 3.7% of a cyclic siloxane, by weight based on the total weight of the foam formulation,a catalyst, and optionally a flame retardant; anda polyisocyanate;wherein the isocyanate index is in the range of from 100 to 500.2. The foam formulation of claim 1 , wherein the cyclic siloxane is selected from the group consisting of hexamethylcyclotrisiloxane claim 1 , octamethylcyclotetrasiloxane claim 1 , decamethylcyclopentasiloxane claim 1 , and dodecamethylcyclohexasiloxane.3. The foam formulation of claim 1 , wherein the non-silicone organic surfactant is a polyether having from 10% to 90% of oxyethylene units and from 10% to 90% of oxyalkylene units having at least 4 carbons claim 1 , by weight based on the combined weight of oxyethylene and oxyalkylene units.4. The foam formulation of claim 1 , wherein the non-silicone organic surfactant is a poly(ethylene oxide-butylene oxide-ethylene oxide) triblock copolymer.5. The foam formulation of claim 1 , wherein the polyester polyol has a hydroxy number of from 200 to less than 300 mg KOH/g.6. The foam formulation of claim 1 , wherein ...

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04-02-2021 дата публикации

POLY(VINYL ALCOHOL) FILM AND PRODUCTION METHOD FOR POLARIZING FILM

Номер: US20210032421A1
Принадлежит: Sekisui Chemical Co., Ltd.

A polyvinyl alcohol film comprising a vinyl alcohol-based polymer, wherein, when the polyvinyl alcohol film is measured by a solid echo method using pulse NMR at 80° C. for waveform separation of a free induction decay curve of 1H spin-spin relaxation into three curves derived from three components a component A, a component B, and a component C in order of short relaxation time, the component A has a resulting relaxation time of 0.0083 milliseconds or more and 0.0093 milliseconds or less, and a resulting component ratio of 10% or more and 35% or less. 1. A polyvinyl alcohol film comprising a vinyl alcohol-based polymer ,wherein, when the polyvinyl alcohol film is measured by a solid echo method using pulse NMR at 80° C. for waveform separation of a free induction decay curve of 1H spin-spin relaxation into three curves derived from three components a component A, a component B, and a component C in order of short relaxation time, the component A has a resulting relaxation time of 0.0083 milliseconds or more and 0.0093 milliseconds or less, and a resulting component ratio of 10% or more and 35% or less.2. The polyvinyl alcohol film according to claim 1 , wherein the vinyl alcohol-based polymer has a degree of saponification of 99 mol % or more.3. The polyvinyl alcohol film according to claim 1 , wherein the vinyl alcohol-based polymer has a degree of polymerization of 2000 or more and 4000 or less.4. The polyvinyl alcohol film according to claim 1 , comprising a plasticizer.5. The polyvinyl alcohol film according to claim 1 , for use in a polarizing film.6. A method for manufacturing a polarizing film comprising using the polyvinyl alcohol film according to .7. The method for manufacturing a polarizing film according to claim 6 , comprising steps of dyeing the polyvinyl alcohol film claim 6 , stretching the polyvinyl alcohol film claim 6 , and performing a fixation treatment to the dyed polyvinyl alcohol film.8. The method for manufacturing a polarizing film ...

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04-02-2021 дата публикации

POLYMER BASED VULCANIZATION COMPOSITIONS AND METHOD FOR PREPARING THE COMPOSITIONS

Номер: US20210032440A1
Принадлежит:

This invention relates to a composition which is suitable for use in the vulcanization of the rubber. The composition is a non-aqueous water soluble polymer based composition comprising a cationic silicate component. The composition may further include a second cationic additive component which is desirable in a rubber vulcanization process. The invention further relates to a method for preparing these compositions. 1. A rubber vulcanization composition , wherein the composition is a polymer based solution comprising a cationic silicate component , and wherein the polymer is a water soluble polymer.2. The composition according to claim 1 , wherein the composition comprises a cationic additive component.3. The composition according to claim 2 , wherein the cationic additive component is a salt of a vulcanization accelerator.4. The composition according to claim 3 , wherein the vulcanization accelerator is selected from a group of accelerator classes including thiazoles claim 3 , dithiocarbamates claim 3 , dithiophosphates claim 3 , sulfenamides claim 3 , thiuram sulfides claim 3 , xanthates claim 3 , guanidines claim 3 , aldehyde amines claim 3 , or combinations thereof5. The composition according to claim 4 , wherein the vulcanization accelerator is selected from a group of accelerator classes including thiazoles claim 4 , dithiocarbamates claim 4 , dithiophosphates claim 4 , thiuram sulphides claim 4 , or combinations thereof.6. The composition according to claim 3 , wherein the salt of a vulcanization accelerator is a salt of 2-mercaptobezothiazole (MBT) claim 3 , zinc dibenzyldithiocarbamate (ZBEC) claim 3 , zinc dialkyldithiophosphate (ZBOP) claim 3 , tetrabenzyl thiuramdisulfide (TBzTD) claim 3 , Di-isopropyl xanthogen disulphide (DIXD) or polysulfide (AS100) claim 3 , or combinations thereof.7. The composition according to claim 3 , wherein the salt of the vulcanization accelerator is a sodium or potassium salt thereof.8. The composition according to claim 1 , ...

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08-02-2018 дата публикации

RESIN COMPOSITION AND PRE-PREG AND LAMINATE USING THE COMPOSITION

Номер: US20180037736A1
Принадлежит:

The present invention relates to the technical field of copper clad laminates and relates to a resin composition and a pre-preg and a laminate using the composition. The resin composition comprises: (A) a prepolymer of vinyl thermosetting polyphenylene ether and a bifunctional maleimide or a multifunctional maleimide; and, (B) a polyolefin resin. The present invention, by employing the prepolymer of vinyl thermosetting polyphenylene ether and the bifunctional maleimide or the multifunctional maleimide, solves the problem of incompatibility of the bifunctional maleimide or the multifunctional maleimide with the vinyl thermosetting polyphenylene ether and the polyolefin resin. An aqueous glue solution so mixed is uniform and consistent, the prepreg has a uniform expression, and a substrate resin area is free of a phase-separation problem. In addition, the maleimide employed is either the bifunctional maleimide or the multifunctional maleimide, relative to a monofunctional maleimide, a substrate so prepared is provided with increased heat resistance, a reduced thermal expansion coefficient, extended thermal stratification time, and increased thermal decomposition temperature. 110.-. (canceled)11. A resin composition , comprising:(A) a prepolymer of vinyl thermosetting polyphenylene ether and bifunctional maleimide or polyfunctional maleimide; and(B) a polyolefin resin.12. The resin composition of claim 11 , wherein the weight of the bifunctional maleimide or polyfunctional maleimide is 5 to 20 parts by weight claim 11 , based on 100 parts by weight of the vinyl thermosetting polyphenylene ether.13. The resin composition of claim 11 , wherein the weight of the polyolefin resin is 5 to 100 parts by weight claim 11 , based on 100 parts by weight of the prepolymer of vinyl thermosetting polyphenylene ether and bifunctional maleimide or polyfunctional maleimide.15. The resin composition of claim 11 , wherein the vinyl thermosetting polyphenylene ether has a number average ...

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15-02-2018 дата публикации

PHENOLIC RESIN FOAM AND METHOD OF PRODUCING SAME

Номер: US20180044494A1

Provided are a phenolic resin foam having low environmental impact, high compressive strength, excellent handling properties in installation, and low costs associated with securing, and also a method of producing the same. The phenolic resin foam contains at least one selected from the group consisting of a chlorinated hydrofluoroolefin, a non-chlorinated hydrofluoroolefin, and a halogenated hydrocarbon. The phenolic resin foam has a density of at least 20 kg/mand no greater than 100 kg/m, and a closed cell ratio of at least 80% and no greater than 99%. The density and 10% compressive strength of the phenolic resin foam satisfy a relationship: C≧0.5X−7, where C represents the 10% compressive strength (N/cm) and X represents the density (kg/m). 113-. (canceled)14. A phenolic resin foam comprisingat least one selected from the group consisting of a chlorinated hydrofluoroolefin, a non-chlorinated hydrofluoroolefin, and a halogenated hydrocarbon, wherein{'sup': 3', '3, 'the phenolic resin foam has a density of at least 20 kg/mand no greater than 100 kg/m,'}the phenolic resin foam has a closed cell ratio of at least 80% and no greater than 99%, and {'br': None, 'i': C≧', 'X−, '0.57'}, 'the density and 10% compressive strength of the phenolic resin foam satisfy a relationship{'sup': 2', '3, 'where C represents the 10% compressive strength in N/cmand X represents the density in kg/m.'}15. The phenolic resin foam according to claim 14 , comprising:the halogenated hydrocarbon; andat least one selected from the group consisting of the chlorinated hydrofluoroolefin and the non-chlorinated hydrofluoroolefin.16. The phenolic resin foam according to claim 14 , whereinthe at least one selected from the group consisting of the chlorinated hydrofluoroolefin and the non-chlorinated hydrofluoroolefin is at least one selected from the group consisting of 1-chloro-3,3,3-trifluoropropene, 2-chloro-3,3,3-trifluoropropene, 1,3,3,3-tetrafluoro-1-propene, 2,3,3,3-tetrafluoro-1-propene, and ...

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14-02-2019 дата публикации

EMULSIFIED OILS

Номер: US20190048148A1
Автор: Lalgudi Ramanathan S.
Принадлежит:

Emulsions for treating shingles, concrete, metallic substrates, mammalian skins, human hair or agricultural plants are described. The emulsions include soy alkyl and/or aryl ester; water; and a cationic surfactant to form the emulsion. Methods of using the emulsions are also described. Compositions including a modified oil alkyl and/or aryl ester comprising the transesterification reaction product of an oil and a surfactant having a hydroxyl group are described. Methods of using the compositions are also described. Methods of making a modified oil alkyl or aryl ester are described. The methods include transesterifying an oil with a surfactant having a hydroxyl group. 1. A composition comprising:a modified oil alkyl ester, modified oil aryl ester, or combinations thereof, the modified oil alkyl ester soy aryl ester comprising the transesterification reaction product of an oil and a surfactant having a hydroxyl group.2. The composition of wherein the surfactant comprises a cationic surfactant claim 1 , an anionic surfactant claim 1 , or a non-ionic surfactant.3. The composition of wherein the surfactant comprises the cationic surfactant.4. The composition of wherein the cationic surfactant comprises a benzalkonium salt claim 3 , a polyquaternirium compound claim 3 , poly(vinyl pyridine) co-N claim 3 ,N dimethyl ethyl methacrylate claim 3 , or combinations thereof.5. The composition of wherein the surfactant comprises the anionic surfactant.6. The composition of wherein the anionic surfactant comprises sodium dodecyl sulfate claim 5 , sodium lauryl benzene sulfonate claim 5 , poly acrylic acid claim 5 , an anionic sulfate-based surfactant claim 5 , an anionic sulfonate-based surfactant claim 5 , or combinations thereof.7. The composition of wherein the surfactant comprises the non-ionic surfactant.8. The composition of wherein the non-ionic surfactant comprises poly(ethylene oxide-b-propylene oxide) claim 7 , poly(ethylene oxide-b-butylene oxide) claim 7 , a sorbitol ...

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22-02-2018 дата публикации

Carbon Fiber Bundle for Resin Reinforcement, and Method for Manufacturing Carbon Fiber Bundle for Resin Reinforcement, Carbon-Fiber-Reinforced Thermoplastic Resin Composition, and Molded Body

Номер: US20180051143A1
Принадлежит: MITSUBISHI CHEMICAL CORPORATION

A carbon fiber bundle for resin reinforcement, wherein there are adhered by 0.1-5.0 mass % to a carbon fiber bundle in which multiple lengths of filament are bundled, a mixture created by mixing an organic polymer (A) having a mass-average molecular weight of 10000 or more and an organic compound (B) the thermal reduction rate specified in claim of which is 5 mass % or more or an organic compound (B) the thermal reduction rate specified in claim of which is 0.8 mass % or more, the amount of the organic polymer (A) adhered being 0.1 mass % or more. 3. The carbon-fiber bundle for resin reinforcement according to claim 1 , wherein the amount of organic compound (B) adhered onto the carbon fiber is 0.2˜4.0 mass % of the total mass of the carbon-fiber bundle for resin reinforcement.4. The carbon-fiber bundle for resin reinforcement according to claim 1 ,wherein (mass of the organic polymer substance (A)):(mass of the organic compound (B)) in the mixture is set to have a mass ratio of 8.5:1.5˜2:8.5. The carbon-fiber bundle for resin reinforcement according to claim 1 , wherein the main chain of the organic polymer substance (A) is structured with carbon-carbon single bonds.6. The carbon-fiber bundle for resin reinforcement according to claim 1 , wherein the organic polymer substance (A) is at least one selected from the group consisting of modified polyolefins containing an acid group on its side chain claim 1 , and (meth)acrylic copolymers.7. The carbon-fiber bundle for resin reinforcement according to claim 1 , wherein the organic polymer substance (A) is water soluble and/or self emulsifiying.8. The carbon-fiber bundle for resin reinforcement according to claim 1 , wherein the viscosity of the organic compound (B) at 30° C. is set at 2500 Pa·s or lower.9. The carbon-fiber bundle for resin reinforcement according to claim 1 , wherein the organic compound (B) is a polyether-based surfactant.10. (canceled)11. The carbon-fiber bundle for resin reinforcement according to ...

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01-03-2018 дата публикации

THREE-DIMENSIONALLY PRINTED TISSUE ENGINEERING SCAFFOLDS FOR TISSUE REGENERATION

Номер: US20180055643A1
Принадлежит:

The present disclosure relates to a three-dimensionally (3D) printed tissue engineering scaffold for tissue regeneration and a method for manufacturing the 3D printed tissue engineering scaffold. The 3D printed tissue engineering scaffold may be fabricated at least in part from a composite material having an insoluble component and soluble component. The three-dimensional tissue scaffolds of the disclosure may be fabricated via a rapid prototyping machine. In some instances, the three-dimensional shape of the fabricated tissue engineering scaffold may correspond to a three-dimensional shape of a tissue defect of a patient. 1186.-. (canceled)187. A three-dimensional tissue scaffold comprising:(a) a first region comprising two or more layers of a first material and having a plurality of first pores, each having a first average pore width;(b) a second region comprising two or more layers of a second material and having a plurality of second pores, each having a second average pore width;wherein a surface of the two or more layers of the first material, a surface of the two or more layers of the second material, or both, comprise a plurality of pits having an average width that is below the resolution of a rapid prototyping technology.188. The three-dimensional tissue scaffold of claim 187 , wherein the plurality of pits have an average width of about 200 nm to about 50 μm.189. The three-dimensional tissue scaffold of claim 187 , wherein the first average pore width and the second average pore width are the same.190. The three-dimensional tissue scaffold of claim 187 , wherein the first material and the second material are the same.191. The three-dimensional tissue scaffold of claim 187 , wherein at least one of the first material and the second material is an insoluble component that remains after a soluble component of a composite material comprising the insoluble component and the soluble component is dissolved by a solvent.192. The three-dimensional tissue scaffold ...

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22-05-2014 дата публикации

Antistatic non-crosslinked foamed polyethylene resin particles and molded non-crosslinked foamed polyethylene resin body

Номер: US20140138868A1
Автор: Kiyotaka Nakayama
Принадлежит: Kaneka Corp

Provided are non-crosslinked foamed polyethylene resin particles that have a bulk density BD of 10 g/L or more and 100 g/L or less and are obtained by foaming polyethylene resin particles containing an antistatic agent in an amount of 0.1 part by weight or more and 3 parts by weight or less with respect to 100 parts by weight of a polyethylene resin and having a density of 0.920 g/cm 3 or more and less than 0.940 g/cm 3 , and the non-crosslinked foamed polyethylene resin particles have a shrinkage ratio of 3% or more and 30% or less determined in accordance with Formula (1). The non-crosslinked foamed polyethylene resin particles can simply afford an antistatic molded non-crosslinked foamed polyethylene resin body that has a small shrinkage ratio with respect to mold dimension, is deformed in a small degree, and has good surface stretch.

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27-02-2020 дата публикации

SEALING COMPOSITIONS FOR WATER SOLUBLE FILMS AND METHODS OF USING

Номер: US20200062913A1
Принадлежит:

A sealing composition for use in unit dose packages is provided, including: 70 to 98 wt % water; 1 to 30 wt % of a hydrogen bonding component; and 1 to 30 wt % of a complex forming component. 1. A sealing composition for use in unit dose packages , comprising:70 to 98 wt % water;1 to 30 wt % of a hydrogen bonding component; and1 to 30 wt % of a complex forming component.2. A method of forming a unit dose package , comprising: '19 to 85 wt % of a partially hydrolyzed polyvinyl acetate;', 'providing a free standing film, comprising{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'providing a sealing composition according to ;'}applying the sealing composition to a first surface of the free standing film;contacting a second surface of the free standing film with the sealing composition applied on the first surface to form a seal between the first surface and the second surface.3. The method of claim 2 , wherein the free standing film provided further comprises:5 to 70 wt % of a poly(ethylene oxide);1 to 35 wt % of a polyalkylene glycol;0.5 to 25 wt % of a plasticizer;0 to 10 wt % of a poly(isobutylene-co-maleic anhydride) copolymer, wherein the poly(isobutylene-co-maleic anhydride) copolymer is at least partially neutralized; and0 to 10 wt % of an optional additive.4. The method of claim 3 , wherein the free standing film provided includes1 to 7.5 wt % of the poly(isobutylene-co-maleic anhydride) copolymer.5. The method of claim 4 , wherein the free standing film provided further comprises:0.01 to 1.8 wt % of a polyvinyl pyrrolidone;wherein the weight ratio of the partially hydrolyzed polyvinyl acetate to the polyvinyl pyrrolidone is >10:1.6. The method of claim 5 , wherein the free standing film provided includes at least one optional additive selected from the group consisting of a nano clay claim 5 , a defoamer claim 5 , a crosslinking agent and mixtures thereof.7. The method of claim 6 , wherein the free standing film provided contains:0.05 to 0.2 wt % of the ...

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05-03-2020 дата публикации

OXYGEN SCAVENGING COMPOSITIONS REQUIRING NO INDUCTION PERIOD

Номер: US20200071517A1
Принадлежит:

The present invention provides a composition comprising: a polyester base polymer; an oxidizable polyether-based additive; and a transition metal catalyst, wherein the polyester base polymer is substantially free of antimony. Containers made include a wall made of the composition. The polyester base polymer may preferably include polyethylene terephthalate and include less than about 100 ppm of antimony, less than about 50 ppm, less than about 10 ppm, or between about 0 and about 2 ppm. Containers made from the composition are substantially clear and exhibit excellent oxygen scavenging properties with little to no induction period. 1. A composition comprising:a substantially antimony-free polyester base polymer;an oxidizable polyether-based additive; anda transition metal catalyst.2. The composition of claim 1 , wherein the polyester base polymer comprises polyethylene terephthalate.3. The composition of claim 1 , wherein the polyester base polymer contains less than 100 ppm of antimony.4. The composition of claim 1 , wherein the polyester base polymer contains less than 50 ppm of antimony.5. The composition of claim 1 , wherein the polyester base polymer contains less than 10 ppm of antimony.6. The composition of claim 1 , wherein the polyester base polymer contains between about 0 ppm and about 2 ppm of antimony.7. The composition of claim 1 , wherein the oxidizable polyether-based additive has the formula X—[R—O]—R′—Y claim 1 , whereinR is a substituted or unsubstituted alkylene chain having from 2 to 10 carbon atoms;n ranges from 4 to 100;{'sub': 1', '1', '1', '1', '1', '1, 'X and Y are selected from the group consisting of H, OH, —OCOR, —OCOAR, —OR, and —OAr, wherein Ris an alkyl group having from 2 to 18 carbon atoms and Aris an aryl group; and'}{'sub': 2', '3', 'p', '2', '3', 'p', '2', '2', '3', '2', '18, 'R′ may be the same as R or selected from the group consisting of [CORCOORO]— and —[COArCOORO]— wherein Aris a phenylene or naphthylene group, Rand Rare Cto ...

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24-03-2016 дата публикации

Optical enhancing durable anti-reflective coating

Номер: US20160083620A1
Принадлежит: Enki Technology Inc

Disclosed herein are polysilsesquioxane based anti-reflective coating (ARC) compositions, methods of preparation, and methods of deposition on a substrate. In embodiments, the polysilsesquioxane of this disclosure is prepared in a two-step process of acid catalyzed hydrolysis of organoalkoxysilane followed by addition of tetralkoxysilane that generates silicone polymers with >40 mol % silanol based on Si-NMR. These high silanol siloxane polymers are stable and have a long shelf-life in the polar organic solvents at room temperature. Also disclosed are low refractive index ARC made from these compositions with and without additives such as porogens, templates, Si—OH condensation catalyst and/or nano-fillers. Also disclosed are methods and apparatus for applying coatings to flat substrates including substrate pre-treatment processes, coating processes including flow coating and roll coating, and coating curing processes including skin-curing using hot-air knives. Also disclosed are coating compositions and formulations for highly tunable, durable, highly abrasion-resistant functionalized anti-reflective coatings.

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26-03-2015 дата публикации

Composition For The Production Of Hydrophilic Polystyrene Material

Номер: US20150087735A1
Принадлежит: CLARIANT FINANCE (BVI) LIMITED

The invention relates to a composition Z comprising a component B1, a component B2, a component D, a component E and a component P, wherein the component B1 is a polyethylene glycol having a hydroxyl number of from 25 to 600 mg KOH/g and an average molecular weight of 200 to 4000 g/mol; the component B2 is a polyethylene glycol having a hydroxyl number of from 0.1 to 24 mg KOH/g and an average molecular weight of higher than 4000 to about 10,000,000 g/mol; 1. A composition Z comprising a component B1 , a component B2 , a component D , a component E and a component P , wherein the component B1 is a polyethylene glycol having a hydroxyl number of from 25 to 600 mg KOH/g and an average molecular weight of 200 to 4000 g/mol;the component B2 is a polyethylene glycol having a hydroxyl number of from 0.1 to 24 mg KOH/g and an average molecular weight of higher than 4000 to about 10,000,000 g/mol;the component D is an earth alkali carbonate,the component E is a phyllosilicate,and the component P is a polystyrene, an alloy thereof or a combination thereof.2. The composition Z as claimed in claim 1 , comprising of from 0.06 to 90% by weight of the sum of the components B1 claim 1 , B2 claim 1 , D and E claim 1 , with the % by weight being based on the total weight of the composition Z.3. The composition Z as claimed in claim 1 , wherein the composition Z comprises of from 1.25 to 50% by weight of the sum of the components B1 claim 1 , B2 claim 1 , D claim 1 , and E claim 1 , with the % by weight being based on the total weight of the composition Z.4. The composition Z as claimed in claim 1 , wherein the composition Z comprises the component B1 and component B2 in a weight ratio of component B1 to component B2 of from 0.1 to 10.0.5. The composition Z as claimed in claim 1 , wherein the composition Z comprises the component B1 and component B2 in a weight ratio of component B1 to component B2 of from 0.3 to 1.0.9. The composition Z as claimed in claim 1 , wherein component P is ...

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29-03-2018 дата публикации

Breathable Films With Microbial Barrier Properties

Номер: US20180086903A1
Принадлежит: Becton Dickinson and Co

Films for medical devices and/or packaging include polyethylene-poly(ethylene oxide) amphiphilic graft copolymers (PE-g-PEO) in their base polymer formulations of polyethylene and poly(ethylene oxide). The films may be treated to include a nitric-oxide releasing agent incorporated into the PE-g-PEO. Also, microbial agents for inclusion in medical devices are provided, which comprise: an olefin-poly(ethylene oxide) amphiphilic graft copolymer, wherein a portion of the poly(ethylene oxide) comprises end groups converted to a nitric oxide-releasing agent. The amphiphilic graft copolymer of the microbial agents may comprise a polyethylene-poly(ethylene oxide) amphiphilic graft copolymer (PE-g-PEO), a polypropylene-poly(ethylene oxide) amphiphilic graft copolymer (PP-g-PEO), or mixtures thereof

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29-03-2018 дата публикации

Resin composition suitable for rigid-flex board and use thereof

Номер: US20180086910A1
Автор: Shu-Hao Chang
Принадлежит: Elite Material Co Ltd

The disclosure relates to a resin composition, comprising an epoxy resin, a high molecular weight polyetheramine and an amine-terminated acrylonitrile rubber. Various products can be made from the resin composition, such as prepregs, laminates, printed circuit boards or rigid-flex boards, in which one, multiple or all of the following properties can be met: low resin flow, low dust weight loss, high peel strength at room temperature and at high temperature, low moisture absorption rate, and better varnish stability.

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06-04-2017 дата публикации

ELECTROSPINNING OF PTFE WITH HIGH VISCOSITY MATERIALS

Номер: US20170096755A1
Принадлежит:

An improved process for forming a PTFE mat is described. The process includes providing a dispersion with PTFE, a fiberizing polymer and a solvent wherein said dispersion has a viscosity of at least 50,000 cP. An apparatus is provided which comprises a charge source and a target a distance from the charge source. A voltage source is provided which creates a first charge at the charge source and an opposing charge at the target. The dispersion is electrostatically charged by contact with the charge source. The electrostatically charged dispersion is collected on the target to form a mat precursor which is heated to remove the solvent and the fiberizing polymer thereby forming the PTFE mat. 1. A polymeric material comprising: a membrane comprised of deposited polymeric fibers , the polymeric fibers having been expanded in a first direction after the fibers are deposited.2. The polymeric material of claim 1 , wherein the deposited fibers comprise sintered fibers.3. The polymeric material of claim 1 , wherein the deposited fibers are exposed to an elevated temperature.4. The polymeric material of claim 1 , wherein the deposited fibers are generally aligned in the first direction.5. The polymeric material of claim 1 , wherein the membrane is more resistant to creep in the first direction after the membrane is expanded.6. The polymeric material of claim 1 , wherein the deposited polymeric fibers have been expanded in a second direction.7. The polymeric material of claim 1 , wherein the deposited polymeric fibers comprise serially deposited polymeric fibers.8. A deposited fiber mat comprising a portion of a device claim 1 , the deposited fiber mat comprising deposited fibers claim 1 , wherein all of the fibers have diameters of 400 nm to 3200 nm.9. The deposited fiber mat of claim 8 , wherein the deposited fiber mat comprises spun polytetrafluoroethylene fibers.10. The deposited fiber mat of claim 8 , wherein all of the fibers have diameters from 800 nm to 2.4 μm.11. The ...

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08-04-2021 дата публикации

FREE STANDING DISPERSANT FILM

Номер: US20210102033A1
Принадлежит:

A free standing dispersant film is provided, including: a partially hydrolyzed polyvinyl acetate; a poly(ethylene oxide); a polyalkylene glycol; a plasticizer; a dispersant polymer; optionally, a poly(isobutylene-co-maleic anhydride) copolymer, wherein the poly(isobutylene-co-maleic anhydride) copolymer is at least partially neutralized; and optionally, an optional additive. 1. A free standing dispersant film , comprising:19 to 85 wt % of a partially hydrolyzed polyvinyl acetate;5 to 70 wt % of a poly(ethylene oxide);1 to 35 wt % of a polyalkylene glycol;0.5 to 25 wt % of a plasticizer;2 to 50 wt % of a dispersant polymer;0 to 10 wt % of a poly(isobutylene-co-maleic anhydride) copolymer, wherein the poly(isobutylene-co-maleic anhydride) copolymer is at least partially neutralized; and0 to 10 wt % of an optional additive.2. The free standing dispersant film of claim 1 , wherein the dispersant polymer is an amphoteric dispersant polymer claim 1 , comprising a copolymer of an anionic vinyl monomer and a cationic vinyl monomer; wherein the cationic vinyl monomer contains at least one tertiary amine nitrogen atom and wherein the dispersant polymer does not contain quaternary amine functionality.3. The free standing dispersant film of claim 2 , further comprises:0.01 to 1.8 wt % of a polyvinyl pyrrolidone;wherein the weight ratio of the partially hydrolyzed polyvinyl acetate to the polyvinyl pyrrolidone is >10:1.4. The free standing dispersant film of claim 3 , wherein the free standing dispersant film includes at least one optional additive selected from the group consisting of a nano clay claim 3 , a defoamer claim 3 , a crosslinking agent and mixtures thereof.5. The free standing dispersant film of claim 4 , wherein the free standing dispersant film contains:0.05 to 0.2 wt % of the polyvinyl pyrrolidone;wherein the at least one optional additive includes a nano clay and a defoamer; and wherein the free standing dispersant film contains:0.1 to 0.5 wt % of the nano clay; ...

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03-05-2018 дата публикации

LIQUID IMPREGNATED SURFACES FOR LIQUID REPELLANCY

Номер: US20180118957A1
Принадлежит:

Articles including repellent surfaces and methods of making and using these articles are disclosed. The repellant surface can comprise a polymer having a roughened surface and a fluorinated silane and a lubricating liquid deposited on the roughened surface. The repellent surface, and by extension the articles described herein, can exhibit superomniphobic properties. The methods for producing the repellant surface can comprise dissolving a polymer in a solvent to produce a polymer solution and optionally adding a non-solvent to the polymer solution to produce a casting mixture. The polymer solution or casting mixture can be deposited on a surface of a substrate and the solvent and/or the non-solvent evaporated to provide a coated-substrate having a roughened surface. A functional layer comprising a fluorinated silane followed by a lubricating liquid can be deposited on the roughened surface to form the repellant surface. 1. A method for producing a repellant surface , the method comprising:dissolving a polymer in a solvent to produce a polymer solution;adding a non-solvent to the polymer solution to produce a casting mixture;depositing the casting mixture on a surface of a substrate;evaporating the solvent and the non-solvent from the casting mixture to provide a coated-substrate having a roughened surface; andintroducing a lubricating liquid to the roughened surface to form a liquid impregnated layer.2. The method of claim 1 , further comprising depositing a functional layer comprising a fluorinated silane on the roughened surface.3. (canceled)4. The method of claim 1 , wherein the polymer includes a hydrophobic polymer comprising a polyalkylene claim 1 , a vinyl aromatic polymer claim 1 , an acrylonitrile butadiene styrene copolymer claim 1 , copolymers thereof claim 1 , or blends thereof.5. The method of claim 1 , wherein the solvent comprises an organic solvent.6. The method of claim 1 , wherein the polymer and the solvent are present in the casting mixture at a ...

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25-04-2019 дата публикации

LATEX FORMULATION FOR MAKING ELASTOMERIC PRODUCTS

Номер: US20190119474A1
Принадлежит:

A latex formulation for making an elastomeric product, more particularly an elastomeric glove. The formulation comprises a mixture of at least one base polymer, a cross-linker; and a pH adjuster, where the pH adjuster provides a pH range of 9.5 to 10.5 to the latex composition. Still further, the present invention discloses a method for preparing a latex formulation for making elastomeric products, such as an elastomeric glove, without using accelerators, zinc oxide or sulphur. 2. The latex formulation as recited in wherein the elastomeric product is an elastomeric glove.3. The latex formulation as recited in wherein the base polymer is synthetic latex.4. The latex formulation as claimed in wherein the synthetic latex comprises at least one of carboxylated polyacrylonitrile butadiene claim 3 , neoprene claim 3 , or polyisoprene.5. The latex formulation as recited in wherein the synthetic latex comprises carboxylated polyacrylonitrile butadiene.6. The latex formulation as recited in wherein the trivalent metal comprises at least one of aluminium claim 1 , iron claim 1 , or chromium.7. The latex formulation as recited in wherein the trivalent metal-based compound comprises at least one of an aluminium based compound claim 1 , an iron (III) based compound claim 1 , or a chromium (III) based compound.8. The latex formulation as recited in wherein the trivalent metal-based compound comprises at least one of aluminium oxide claim 1 , aluminium sulphate claim 1 , aluminium chloride claim 1 , aluminium hydroxide claim 1 , aluminium phosphate claim 1 , or sodium aluminate.9. The latex formulation as recited in wherein the trivalent metal-based compound comprises aluminium hydroxide.10. The latex formulation as recited in wherein the cross-linker includes about 1% to about 20% by weight of the trivalent metal or trivalent metal-based compound.11. The latex formulation as recited in wherein the cross-linker contains about 3% by weight of the trivalent metal or trivalent metal- ...

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25-04-2019 дата публикации

Liquid stabilizer for soft vinyl chloride resins, soft vinyl chloride resin composition using said stabilizer and molded body formed from said composition

Номер: US20190119482A1
Автор: Yuji Yoshida
Принадлежит: Sakai Chemical Industry Co Ltd

There is provided a liquid stabilizer that can achieve a soft vinyl chloride resin composition having excellent blocking resistance and excellent transparency. A liquid stabilizer for a soft vinyl chloride resin according to the present invention includes: an organic acid zinc salt; an alkaline earth metal salt of an organic acid; and polypropylene glycol having a number-average molecular weight of 2,000 or more and/or ricinoleic acid.

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27-05-2021 дата публикации

POLYMER GEL HAVING SPONGE-LIKE POROUS STRUCTURE

Номер: US20210155799A1
Автор: SAKAI Takamasa, Tei Yuichi
Принадлежит:

An object of the present invention is to provide a gel material including a solvophilic polymer having a μm-scale porous structure. 1. A polymer gel in which solvophilic polymer units are cross-linked with each other ,wherein the polymer gel contains a solvent and has a three-dimensional network structure having two regions: a first region in which the polymer units are densely present and a second region in which the polymer units are sparsely present, anda mesh size composed of the first region is the range of 1 to 500 μm.2. The polymer gel according to claim 1 , wherein the polymer gel has a lower permeability than a permeability of the polymer units before gelation.3. The polymer gel according to or claim 1 , wherein the polymer gel has an osmotic pressure of ⅕ to ½ of an osmotic pressure of the polymer units before gelation.4. The polymer gel according to any one of to claim 1 , wherein an osmotic pressure (Π) and an elastic pressure (Π) after a lapse of a certain period of time from gelation have a relationship of Π>Π.5. The polymer gel according to any one of to claim 1 , wherein a polymer concentration in the first region is from 10 to 99 wt % claim 1 , and a polymer concentration in the second region is from 0 to 1 wt %.6. The polymer gel according to any one of to claim 1 , wherein the polymer gel has a polymer content of 5 wt % or less.7. The polymer gel according to any one of to claim 1 , wherein the solvent is water and the polymer units are hydrophilic polymers.8. The polymer gel according to claim 7 , wherein the hydrophilic polymers are polymers having a polyethylene glycol backbone or a polyvinyl backbone.9. The polymer gel according to any one of to claim 7 , wherein the polymer units comprise a first polymer unit having one or more nucleophilic functional groups in a side chain or at an end and a second polymer unit having one or more electrophilic functional groups in a side chain or at an end.10. The polymer gel according to claim 9 , wherein ...

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12-05-2016 дата публикации

OXYGEN SCAVENGING COMPOSITIONS REQUIRING NO INDUCTION PERIOD

Номер: US20160130434A1
Принадлежит:

The present invention provides a composition comprising: a polyester base polymer; an oxidizable polyether-based additive; and a transition metal catalyst, wherein the polyester base polymer is substantially free of antimony. Containers made include a wall made of the composition. The polyester base polymer may preferably include polyethylene terephthalate and include less than about 100 ppm of antimony, less than about 50 ppm, less than about 10 ppm, or between about 0 and about 2 ppm. Containers made from the composition are substantially clear and exhibit excellent oxygen scavenging properties with little to no induction period. 1. A composition comprising:a substantially antimony-free polyester base polymer;an oxidizable polyether-based additive; anda transition metal catalyst.2. The composition of claim 1 , wherein the polyester base polymer comprises polyethylene terephthalate.3. The composition of claim 1 , wherein the polyester base polymer contains less than 100 ppm of antimony.4. The composition of claim 1 , wherein the polyester base polymer contains less than 50 ppm of antimony.5. The composition of claim 1 , wherein the polyester base polymer contains less than 10 ppm of antimony.6. The composition of claim 1 , wherein the polyester base polymer contains between about 0 ppm and about 2 ppm of antimony.7. The composition of claim 1 , wherein the oxidizable polyether-based additive has the formula X—[R—O]—R′—Y claim 1 , whereinR is a substituted or unsubstituted alkylene chain having from 2 to 10 carbon atoms;n ranges from 4 to 100;{'sub': 1', '1', '1', '1', '1', '1, 'X and Y are selected from the group consisting of H, OH, —OCOR, —OCOAr, —OR, and —OAr, wherein Ris an alkyl group having from 2 to 18 carbon atoms and Aris an aryl group; and'}{'sub': 2', '3', 'p', '2', '3', 'p', '2', '2', '3', '2', '18, 'R′ may be the same as R or selected from the group consisting of —[CORCOORO]— and —[COArCOORO]— wherein Aris a phenylene or naphthylene group, Rand Rare ...

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02-05-2019 дата публикации

METHOD TO IMPROVE THE SURFACE MODIFICATION BY USING ALKYLBORANES

Номер: US20190127555A1
Принадлежит: BASF SE

Process for the modification of a surface of a solid substrate comprising treatment of the surface with (i) a solution comprising an organoborane-amine complex and a polymer and subsequently with (ii) a polymerizable compound (herein referred to as “monomer”) and optionally a deblocking agent 1. A process for modifying surface of a solid substrate , the process comprising treating the surface with(i) a solution comprising an organoborane-amine complex and a polymer and, subsequently,(ii) a polymerizable compound and, optionally, a deblocking agent.2. The process of claim 1 , wherein the organoborane-amine complex has a structure of formula (I){'br': None, 'sub': 1', '2', '3', '4', '5', '6, 'RRRB—NRRR\u2003\u2003(1),'}{'sub': 1', '2', '3', '1', '2', '3, 'wherein R, Rand Rare each independently an alkyl group, a cycloalkyl group, an alkyl or cycloalkyl group substituted with a heteroatom, an alkylamino group, an aryl group, a heteroaryl group, an alkoxy group or an aryloxy group, with the proviso that at least one of R, Rand Ris an alkyl or aryl group, and'}{'sub': 4', '5', '6', '4', '5', '6, 'R, Rand Rare each independently hydrogen, an alkyl group, a cycloalkyl group, a substituted alkyl group, an alkoxy group, an alkylamino group, an aryl group or a heteroaryl group, with the proviso that not more than two of R, Rand Rare simultaneously hydrogen, or'}{'sub': 4', '5', '6, 'NRRRis a heterocyclic aliphatic or aromatic amine, optionally comprising at least one heteroatom selected from the group consisting of N, O, S and P.'}3. The process of claim 1 , wherein the organoborane-amine complex is a trialkylborane-amine complex.4. The process of claim 1 , wherein the polymer is a polyalkylenoxide claim 1 , a polyalkyleneglycol claim 1 , a polycaprolactone claim 1 , a polyvinyllactone claim 1 , a polyvinyllactame or a mixture thereof.5. The process of claim 1 , wherein the polymer is a polyethyleneglycol or a polyvinylpyrrollidone.6. The process of claim 1 , wherein the ...

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03-06-2021 дата публикации

SULFUR-CROSSLINKED RUBBER MIXTURE FOR VEHICLE TIRES, CONTAINING CARBON NANOTUBES (CNT), VEHICLE TIRE HAVING THE SULFUR-CROSSLINKED RUBBER MIXTURE, AND METHOD FOR PRODUCING THE SULFUR-CROSSLINKED RUBBER MIXTURE CONTAINING CARBON NANOTUBES

Номер: US20210163696A1
Принадлежит: CONTINENTAL REIFEN DEUTSCHLAND GMBH

A sulfur-crosslinked rubber mixture for vehicle tires including carbon nanotubes (CNT), to a vehicle tire comprising the sulfur-crosslinked rubber mixture and to a process for producing the sulfur-crosslinked rubber mixture comprising CNT. The sulfur-crosslinked rubber mixture according to the invention is characterized in that the CNT are predispersed in at least one polyisoprene. The vehicle tire according to the invention preferably comprises the sulfur-crosslinked rubber mixture in the tread and/or a sidewall and/or a conductivity track. 110.-. (canceled)12. The method as claimed in claim 11 , wherein the at least one polyisoprene is at least one natural polyisoprene.13. The method as claimed in claim 11 , wherein the sulfur-crosslinkable rubber mixture comprises the carbon nanotubes in an amount of 0.1 to 25 phr.14. The method as claimed in claim 11 , wherein the sulfur-crosslinkable rubber mixture further comprises at least one sulfur-crosslinkable rubber.15. The method as claimed in claim 11 , wherein the sulfur-crosslinkable rubber mixture further comprises at least one reinforcing filler claim 11 , and wherein a quantity ratio of the at least one reinforcing filler to carbon nanotubes is in the range of from 100:1 to 2:1.16. The method as claimed in claim 11 , wherein the sulfur-crosslinkable rubber mixture contains not more than 35 phr of plasticizers.17. The method as claimed in claim 11 , wherein the one or more components is selected from the group consisting of a tread claim 11 , a sidewall claim 11 , a conductivity track claim 11 , an inner component and a flange profile.18. The method as claimed in claim 11 , wherein the sulfur-crosslinkable rubber mixture is molded into a tread of the vehicle tire.19. The method as claimed in claim 11 , wherein the sulfur-crosslinkable rubber mixture is molded into a conductivity track of the vehicle tire.20. The method as claimed in claim 11 , wherein the sulfur-crosslinkable rubber mixture is molded into a ...

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08-09-2022 дата публикации

Biocompatible hydrogel comprising hyaluronic acid and polyethylene glycol

Номер: US20220280684A1

The present invention relates to a biocompatible hydrogel comprising hyaluronic acid and polyethylene glycol, and more particularly, to a biocompatible hydrogel prepared by inducing inter-molecular and/or intra-molecular cross-linking of hyaluronic acid and polyethylene glycol only by irradiating radiation without adding a reactor, a chemical cross-linking agent, or the like, a method for preparing the same, and the use thereof.

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30-04-2020 дата публикации

Branched polyethylene glycol epoxy derivative crosslinked sodium hyaluronate gel, preparation and application thereof

Номер: US20200129542A1
Автор: Meina Lin, Xuan Zhao, Zhen Wei
Принадлежит: Tianjin Jenkem Technology Co Ltd

The present invention discloses a branched polyethylene glycol epoxy derivative crosslinked sodium hyaluronate gel, preparation and application thereof. The crosslinking agent used in the crosslinked sodium hyaluronate gel prepared by the present invention is a polyethylene glycol epoxy derivative, due to the existence of multiple ether bonds in the molecule of the crosslinking agent, there are more hydrogen bonds in the gel system; meanwhile, due to the particularity of the space structure of the branched polyethylene glycol epoxy derivative, the gel prepared has a more complex winding structure in its space, thus achieving better stability. Moreover, the branched polyethylene glycol epoxy derivative involved in the present invention is a compound with single molecular weight, therefore, the gel prepared thereby has better batch stability.

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10-06-2021 дата публикации

Transdermal Delivery System

Номер: US20210169818A1
Автор: BAI Xuefei
Принадлежит:

The present invention relates to compositions and methods for transdermal delivery of molecules or active ingredients into skin layers underneath Stratum Corneum. In preferred embodiments, the compositions comprise delivery systems providing high transdermal delivery efficiency. 1. A particle with a diameter of 10 to 200 nanometers , comprising a core and lipophilic side chains , wherein the core comprises a volume of aqueous solution and a hydrophilic polymer in the volume of aqueous solution , and wherein the lipophilic side chains extend out of the volume of aqueous solution.2. A method of making a particle with a diameter of 10 to 200 nanometers , comprising:mixing at least one oil-soluble transfer agent or comonomer in a volume of oil and at least one water-soluble crosslinker in a volume of water; andinitiating polymerization with a radical initiator.3. The method of claim 2 , wherein the volume of oil further comprises 0-20% by volume nonionic surfactant with a hydrophilic-lipophilic balance of no more than 9 and 0-5% by volume nonionic cosurfactant with an hydrophilic-lipophilic balance of no more than 16.4. The method of claim 2 , wherein the volume of oil comprises alpha-olefins claim 2 , thiols claim 2 , disulfide claim 2 , or halide with at least 8 carbons.5. The method of claim 2 , wherein the volume of water comprises 20-80% by volume the water-soluble crosslinker.6. The method of claim 2 , wherein the radical initiator is a thermal radical initiator claim 2 , and the polymerization reaction proceeds at a temperature higher than 30° C. for at least 3 hours.7. The method of claim 2 , wherein the radical initiator is a redox radical initiator or photo radical initiatioor claim 2 , and the polymerization reaction proceeds at a temperature not higher than 30° C. for at least 3 hours.8. The method of claim 2 , wherein the radical initiator has a concentration of lower than 1% by volume.9. The particle of claim 1 , wherein the hydrophilic polymer comprises ...

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30-04-2020 дата публикации

THICKENER, COMPOSITION, AND SHEET

Номер: US20200131279A1
Принадлежит: OJI HOLDINGS CORPORATION

It is an object of the present invention to provide a thickener capable of exhibiting excellent light resistance. The present invention relates to a thickener comprising cellulose fibers having a fiber width of 8 nm or less and water, wherein the thickener is a slurry or a gel, and when the thickener is filled in a colorless and transparent glass cell having an inside dimension of 1 cm in depth×4 cm in width×4.5 cm in height and the thickener is then irradiated with ultraviolet rays with a wavelength of 300 nm or more and 400 nm or less, using a xenon lamp, from the side of the maximum area surface of the glass cell, so as to be an irradiance of 180 W/mand an integrated light amount of 500 mJ/m, the amount of a change in the yellowness before and after ultraviolet irradiation measured in accordance with JIS K 7373 is 10 or less. 1. A thickener comprising cellulose fibers having a fiber width of 8 nm or less and water , whereinthe thickener is a slurry or a gel, and{'sup': 2', '2, 'when the thickener is filled in a colorless and transparent glass cell having an inside dimension of 1 cm in depth×4 cm in width×4.5 cm in height and the thickener is then irradiated with ultraviolet rays with a wavelength of 300 nm or more and 400 nm or less, using a xenon lamp, from the side of the maximum area surface of the glass cell, so as to be an irradiance of 180 W/mand an integrated light amount of 500 mJ/m,'}the amount of a change in the yellowness before and after ultraviolet irradiation measured in accordance with JIS K 7373 is 10 or less.2. The thickener according to claim 1 , wherein a diluted solution of the thickener having a solids concentration of 0.5% by mass has a shear viscosity of 3000 mPa·s or more at 25° C. and at a shear velocity of 1 s.3. The thickener according to claim 1 , wherein a diluted solution of the thickener having a solids concentration of 0.5% by mass has a shear viscosity of 250 mPa·s or more at 25° C. and at a shear velocity of 100 s.4. The ...

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30-04-2020 дата публикации

POLYMER MEMBRANE AND METHODS OF MANUFACTURING THEREOF

Номер: US20200131320A1
Принадлежит:

This invention relates to a polymer membrane comprising a hydrogen bond donor polymer and a hydrogen bond acceptor polymer and to the use of such membrane as the shell of a capsule. The invention also relates to a method of manufacturing a polymer membrane comprising a step of contacting an aqueous phase comprising a first polymer, and an oil phase comprising a second different polymer; wherein one polymer is a hydrogen bond donor polymer and the other polymer is a hydrogen bond acceptor polymer. The invention also relates to a method of encapsulation comprising a step of manufacturing a polymer membrane. 1. A polymer membrane comprising a hydrogen bond donor polymer and a hydrogen bond acceptor polymer; a hydrogen bond donor group being carboxyl, wherein from 50% to 100%, preferably from 75% to 100%, in number of the monomer units relative to the total number of monomer units in the polymer comprise such a hydrogen bond donor group; and', 'a lateral substituent comprising at least one hydrophobic group selected from alkyl, cycloalkyl and aryl, wherein from 50% to 100%, preferably from 75% to 100%, in number of the monomer units relative to the total number of monomer units in the polymer comprise such a lateral substituent;, 'wherein said hydrogen bond donor polymer is made of one or more monomers, and comprises a hydrogen bond acceptor group being ether, wherein from 50% to 100%, preferably from 75% to 100%, in number of the monomer units relative to the total number of monomer units in the polymer comprise such a hydrogen bond acceptor group; and', 'a lateral substituent comprising at least one hydrophobic group selected from alkyl, cycloalkyl and aryl, wherein from 50% to 100%, preferably from 75% to 100%, in number of the monomer units relative to the total number of monomer units in the polymer comprise such a lateral substituent; and, 'wherein said hydrogen bond acceptor polymer is made of one or more monomers, and compriseswherein said polymer membrane does ...

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10-06-2021 дата публикации

Modified Polyester Fiber for Cementitious Composite and Method for Surface Treatment of the Same

Номер: US20210171396A1
Принадлежит:

The disclosure relates to a method for the surface treatment of a polyester fiber, a modified polyester fiber obtained therefrom, and an engineered cementitious composite containing such modified polyester fibers. The method comprises subjecting the polyester fiber to an alkali hydrolysis to obtain hydrolyzed polyester fiber; applying a solution containing an acid cross-linker and a polyvinyl alcohol to the hydrolyzed polyester fiber, then curing to form a coating having a thickness of sub-micron or micron scale on the polyester fiber, thereby obtaining the modified polyester fiber. 1. A method for preparing a modified polyester fiber , comprisingsubjecting a polyester fiber to an alkali hydrolysis to yield a hydrolyzed polyester fiber;applying a solution, containing an acid cross-linker and a polyvinyl alcohol, to the hydrolyzed polyester fiber; andcuring the hydrolyzed polyester fiber to form a coating, the coating having a thickness of one of a sub-micron or a micron scale, thereby yielding the modified polyester fiber, wherein a weight ratio of the polyvinyl alcohol to the hydrolyzed polyester fiber is a range of 1:3˜20.2. The method of claim 1 , wherein the solution contains an acid cross-linker claim 1 , and the polyvinyl alcohol contains a nanoparticle.3. The method of claim 2 , wherein a weight ratio of the nanoparticle to the polyvinyl alcohol is in range of 1:1˜104. The method of claim 1 , further comprising:subjecting the polyester fiber to a hydrolysis in a 3˜10 wt % alkali metal hydroxide aqueous solution at a weight ratio in a range of 1:5˜30 for a range of 20˜40 minutes at a temperature in a range of 75˜90° C.; andwashing the polyester fiber with water, thereby yielding the hydrolyzed polyester fiber.5. The method of claim 1 , further comprising:subjecting the polyester fiber to a hydrolysis in a 5 wt % sodium hydroxide aqueous solution at a weight ratio in a range of 1:25˜28 for 30 minutes at a temperature of 80˜85° C.; andwashing the polyester fiber ...

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02-06-2016 дата публикации

PHOTOCURABLE COMPOSITION

Номер: US20160152783A1
Принадлежит:

A rapid-curing photocurable composition exerting excellent adhesion performance even with a low cumulative light quantity and being curable in a short time, thus ensuring excellent workability, is provided. A photocurable composition is made to includes: (A) a crosslinkable silicon group-containing organic polymer; (B) a photobase generator; and (C1) a silicon compound having an Si—F bond and/or (C2) one or more fluorine-based compounds selected from the group consisting of boron trifluoride, a boron trifluoride complex, a fluorinating agent, and an alkali metal salt of a polyfluoro compound. The (B) photobase generator is preferably a photolatent tertiary amine. 1. A photocurable composition comprising:(A) a crosslinkable silicon group-containing organic polymer;(B) a photobase generator; and(C1) a silicon compound having an Si—F bond and/or (C2) one or more fluorine-based compounds selected from the group consisting of boron trifluoride, a boron trifluoride complex, a fluorinating agent, and an alkali metal salt of a polyfluoro compound.2. The photocurable composition as claimed in claim 1 , wherein the (B) photobase generator is a photolatent tertiary amine.3. The photocurable composition as claimed in claim 1 , further comprising (D) a silane coupling agent.4. The photocurable composition as claimed in claim 1 , wherein the (A) crosslinkable silicon group-containing organic compound is one or more members selected from the group consisting of a polyoxyalkylene-based polymer containing claim 1 , on average claim 1 , 0.8 or more crosslinkable silicon groups per molecule claim 1 , a saturated hydrocarbon-based polymer containing claim 1 , on average claim 1 , 0.8 or more crosslinkable silicon groups per molecule claim 1 , and a (meth)acrylic acid ester-based polymer containing claim 1 , on average claim 1 , 0.8 or more crosslinkable silicon groups per molecule.5. A method for producing a cured product claim 1 , comprising irradiating a photocurable composition ...

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07-05-2020 дата публикации

MICROFLUIDIC MULTICHANNEL DEVICE

Номер: US20200140628A1
Принадлежит:

An anti-clogging microfluidic multichannel device comprising a first mixing chamber comprising a first and a second end, wherein the first end comprises at least one inlet connected in fluid communication with the first mixing chamber, and at least one first capillary element comprising a first and a second end, wherein the first end of the at least one first capillary element is connected in fluid communication with the second end of the first mixing chamber, at least one septum located within the at least one first capillary element, which divides the cross section of the at least one first capillary element in a plurality of channels, wherein the at least one first capillary element comprises a reduction of section along its longitudinal axis between a section of the at least one first capillary element and the second end of the at least one first capillary element. It is also described a microfluidics system and a method of production of emulsions using said microfluidics system. 1. An anti-clogging microfluidic multichannel device , the device comprising:a first mixing chamber comprising a first and a second end, wherein the first end comprises at least one inlet connected in fluid communication with the first mixing chamber,wherein the first mixing chamber is configured:to receive a first solution through the at least one inlet, andto mix said first solution with at least a second solution, and at least one first capillary element comprising:a) a first and a second end,wherein the first end of the at least one first capillary element is connected in fluid communication with the second end of the first mixing chamber, and is configured to receive from the first mixing chamber a mixture resulting from mixing the first solution and the at least second solution, andb) at least one septum located within the at least one first capillary element, which divides the cross section of the at least one first capillary element in a plurality of capillary channels,wherein ...

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08-06-2017 дата публикации

CONTACT LENSES AND METHODS OF MAKING CONTACT LENSES

Номер: US20170160432A1
Принадлежит: TANGIBLE SCIENCE, LLC

Contact lenses with hydrophilic polymer coatings are described herein along with methods of making such lenses. The contact lenses can include a lens core that comprises about 75% to about 100% silicone. The hydrophilic polymer coating can include polyethylene glycol and polyacrylamide. 1. A contact lens comprising:a. a contact lens core comprising about 75% to about 100% silicone and;b. a coating layer covalently attached to at least a portion of an outer surface of the contact lens core, the coating layer adapted to contact an ophthalmic surface, wherein the coating layer comprises a cross-linked, hydrophilic polymer, wherein the contact lens has an oxygen permeability Dk greater than 200*10̂-11 (cm/sec)(ml 02/m1 x mm Hg).2. The lens of claim 1 , wherein the contact lens core comprises about 98% to about 100% silicone.3. The lens of claim 1 , wherein the contact lens core consists of silicone.4. The lens of claim 1 , wherein the contact lens has an oxygen permeability Dk greater than 250*10̂-11 (cm/sec)(ml O2/ml×mm Hg).5. The lens of claim 1 , wherein the contact lens has an oxygen permeability Dk greater than 300*10̂-11 (cm/sec)(ml O2/ml×mm Hg).6. The lens of claim 1 , wherein a surface of the contact lens has an advancing contact angle<65 degrees.7. The lens of claim 1 , wherein a surface of the contact lens has an advancing contact angle<60 degrees.8. The lens of claim 1 , wherein a surface of the contact lens has an advancing contact angle between<55 degrees.9. The lens of claim 1 , wherein a surface of the contact lens has an advancing contact angle<50 degrees.10. The lens of claim 1 , wherein a surface of the contact lens has an advancing contact angle<45 degrees.11. The lens of claim 1 , wherein the contact lens surface has an advancing contact angle<40 degrees.12. The lens of claim 1 , wherein the contact lens surface has an advancing contact angle<35 degrees.13. The lens of claim 1 , wherein the contact lens surface has an advancing contact angle<30 ...

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08-06-2017 дата публикации

COMPOSITION FOR ANISOTROPIC CONDUCTIVE FILM, ANISOTROPIC CONDUCTIVE FILM, AND CONNECTION STRUCTURE USING THE SAME

Номер: US20170162531A1
Принадлежит:

An anisotropic conductive film composition, an anisotropic conductive film prepared using the same, and a connection structure using the same, the anisotropic conductive film including a binder resin; a curable alicyclic epoxy compound; a curable oxetane compound; a quaternary ammonium catalyst; and conductive particles, wherein the anisotropic conductive film has a heat quantity variation rate of about 15% or less, as measured by differential scanning calorimetry (DSC) and calculated by Equation 1: 1. An anisotropic conductive film , comprising:a binder resin;a curable alicyclic epoxy compound;a curable oxetane compound;a quaternary ammonium catalyst; andconductive particles, {'br': None, 'i': H', '−H', 'H, 'sub': 0', '1', '0, 'Heat quantity variation rate (%)=[()/]×100\u2003\u2003Equation 1'}, 'wherein the anisotropic conductive film has a heat quantity variation rate of about 15% or less, as measured by differential scanning calorimetry (DSC) and calculated by Equation 1{'sub': 0', '1, 'wherein His a DSC heat quantity of the anisotropic conductive film, as measured at 25° C. and a time point of 0 hr, and His a DSC heat quantity of the anisotropic conductive film, as measured after being left at 40° C. for 24 hours.'}3. The anisotropic conductive film as claimed in claim 1 , wherein the oxetane compound is a carbon polymer compound containing 1 to 4 oxetane rings per molecule.5. The anisotropic conductive film as claimed in claim 4 , wherein M is SbF or B(CF).6. The anisotropic conductive film as claimed in claim 1 , wherein the binder resin includes a polyimide resin claim 1 , a polyamide resin claim 1 , a phenoxy resin claim 1 , a polymethacrylate resin claim 1 , a polyacrylate resin claim 1 , a polyurethane resin claim 1 , a polyester resin claim 1 , a polyester urethane resin claim 1 , a polyvinyl butyral resin claim 1 , a styrene-butadiene-styrene (SBS) resin or an epoxylated compound thereof claim 1 , a styrene-ethylene/butylene-styrene (SEBS) resin or a ...

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14-06-2018 дата публикации

POLYETHYLENE-BASED RESIN FOAMED PARTICLES, POLYETHYLENE-BASED RESIN IN-MOLD-FOAM-MOLDED BODY, AND METHOD FOR PRODUCING POLYETHYLENE-BASED RESIN FOAMED PARTICLES

Номер: US20180163008A1
Автор: Itoi Akihiro, Yoshida Toru
Принадлежит: KANEKA CORPORATION

Polyethylene-based resin foamed particles are obtained having good productivity, achieve an increase in foaming ratio, and in which a miniaturization of the average cell diameter is suppressed. A polyethylene-based resin in-mold-foam-molded body using the foamed particles is reduced in yellowing of the surface of the molded body and has favorable surface beauty (surface smoothness). The foamed particles contain, as a base resin, a polyethylene-based resin composition containing 1000 ppm or more and 4000 ppm or less in total of one or more compounds selected from the group consisting of antioxidants, metal stearates, and inorganic substances and 50 ppm or more and 20000 ppm or less of hydrophilic compounds, in which the Z average molecular weight is 30×10or more and 100×10or less, the surface layer film thickness is 11 μm or more and 120 μm or less, and the open-cell ratio is 12% or less. 1. A method for producing polyethylene-based resin foamed particles having a Z average molecular weight of 40×10to 70×10 , a surface layer film thickness of 11 μm to 120 μm , and an open-cell ratio of 12% or less , comprising:obtaining a polyethylene-based resin particles by being melt and kneaded by an extruder in a resin temperature range of 290° C. to 320° C., and then the polyethylene-based resin particles undergo a first-stage foaming process,wherein the first-stage foaming process comprisesdispersing the polyethylene-based resin particles containing apolyethylene-based resin composition of 1000 ppm to 4000 ppm in total of one or more compounds selected from the group consisting of an antioxidant, metal stearate, and an inorganic substance and 50 ppm to 20000 ppm of a hydrophilic compound together with a foaming agent in an aqueous dispersion medium in an airtight container to achieve a resultant polyethylene-based resin particles,heating the resultant polyethylene-based resin particles to a temperature equal to or higher than a softening point of the polyethylene-based resin ...

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21-06-2018 дата публикации

RUBBER-LIKE MATERIAL FOR THE IMMOBILIZATION OF PROTEINS AND ITS USE IN LIGHTING, DIAGNOSIS AND BIOCATALYSIS

Номер: US20180171032A1
Принадлежит:

The present invention relates to a process of preparing a rubber-like material containing a protein immobilized therein, as well as a corresponding rubber-like material, the process comprising the steps of (a) mixing a protein, a branched polymer such as trimethylolpropane ethoxylate and a linear polymer such as poly(ethylene oxide) in an aqueous solution to form a gel, and (b) drying the gel to obtain a rubber-like material containing the protein immobilized therein, wherein the branched polymer comprises at least three polymeric branches bound to a central branching unit. The rubber-like material allows the immobilization and stabilization of a wide range of different proteins, including luminescent proteins as well as enzymes, and can particularly advantageously be used as down-converting material for light-emitting diodes (LEDs), for diagnostic applications, and in bioreactors. 1. A process of preparing a rubber-like material containing a protein immobilized therein , the process comprising the following steps:(a) mixing a protein, a branched polymer and a linear polymer in an aqueous solution to form a gel; and(b) drying the gel to obtain a rubber-like material containing the protein immobilized therein;wherein the branched polymer comprises at least three polymeric branches bound to a central branching unit.2. A process of preparing a gel , the process comprising:(a) mixing a protein, a branched polymer and a linear polymer in an aqueous solution to form a gel;wherein the branched polymer comprises at least three polymeric branches bound to a central branching unit.3. The process of or , wherein said central branching unit comprised in the branched polymer is a Chydrocarbon moiety which is substituted with 3 to 8 substituent groups , wherein said substituent groups are each independently selected from hydroxy , carboxy and amino , optionally wherein one or more carbon atoms comprised in said Chydrocarbon moiety are each independently replaced by an oxygen atom ...

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06-06-2019 дата публикации

PVP COPOLYMER FOR HARSH CHEMICAL PACKAGING

Номер: US20190169383A1

A water soluble film useful in unit-dose chemical packaging is disclosed. The film may include: a water soluble saccharide and a polyvinyl alcohol copolymer consisting essentially of: (a) from 80 to 99 mole percent of vinyl alcohol and vinyl ester monomer; and (b) from 1 to 20 mole percent of a pyrrolidone comonomer. Such compositions may be used to provide a water-soluble film simultaneously satisfying requirements in regard to water solubility, biodegradability, and physical properties, even when used for packaging a broad range of harsh, oxidizing chemicals. 1. A unit dose package comprising:a polymeric dissolution packet comprising a film; anda chemical sealed in the polymeric dissolution packet; [ (a) from 80 to 99 mole percent of vinyl alcohol and vinyl ester monomer; and', '(b) from 1 to 20 mole percent of a pyrrolidone comonomer; and', 'having a degree of hydrolysis in the range from about 65% to about 99%;, 'a polyvinyl alcohol copolymer consisting essentially of, 'a plasticizer;, 'wherein the film compriseswherein the chemical comprises at least one of a peroxide, a nitrate, a nitrite, a chromate, a persulfate, a borate, a bromate, a chlorate, a periodate, a chlorite, a chlorinated or brominated isocyanurate, an inorganic acid, an organic acid, a peroxy acid, potassium superoxide, and salts and hydrates of these compounds; andwherein the film has a %dissolution. by weight in water at 21° C. of at least 85 wt % following exposure to the chemical and aging at a temperature in the range from about 30° C. to about 54° C. for at least 4 weeks.2. The unit dose package of claim 1 , wherein the chemical is selected from the group consisting of dichloroisocyanuric acid claim 1 , Calcium hypochlorite claim 1 , trichloroisocyanuric acid claim 1 , 1-bromo-3-chloro-5 claim 1 ,5-dimethylhydantoin claim 1 , 1 claim 1 ,3-dibromo-5 claim 1 ,5-dimethylhydantoin claim 1 , 2 claim 1 ,3-dibromo-3-nitrilopropionamide; 2-bromo-2-nitro-4 claim 1 ,3-propanediol claim 1 , sodium ...

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02-07-2015 дата публикации

ELECTROSPINNING OF PTFE

Номер: US20150183940A1
Принадлежит:

An improved process for forming a PTFE mat is described. The process includes providing a dispersion with PTFE, a fiberizing polymer and a solvent wherein said dispersion has a viscosity of at least 50,000 cP. An apparatus is provided which comprises a charge source and a target a distance from the charge source. A voltage source is provided which creates a first charge at the charge source and an opposing charge at the target. The dispersion is electrostatically charged by contact with the charge source. The electrostatically charged dispersion is collected on the target to form a mat precursor which is heated to remove the solvent and the fiberizing polymer thereby forming the PTFE mat. 1. (canceled)2. A method of preparing a spinning dispersion , comprising: adding polyethylene oxide (PEO) to a polytetrafluoroethylene (PTFE) aqueous dispersion to form a PTFE/PEO dispersion , wherein the ratio of PEO to PTFE corresponds to a ratio of 0.03 or greater grams of PEO per ml of 60 wt % PTFE dispersion.3. The method of claim 2 , wherein the ratio of PEO to PTFE corresponds to a ratio of between 0.03 and 0.06 grams of PEO per ml of 60 wt % PTFE dispersion.4. The method of claim 2 , further comprising mixing the PTFE/PEO dispersion in a jar roller turning at a constant rate.5. The method of claim 4 , wherein mixing the PTFE/PEO dispersion comprises mixing in a jar roller turning at a constant rate for at least 24 hours.6. The method of claim 2 , further comprising filtering PTFE/PEO dispersion to remove clumps.7. The method of claim 2 , further comprising allowing the PTFE/PEO dispersion to homogenize.8. A method of preparing a spinning dispersion claim 2 , comprising: adding a fiberizing polymer to a polytetrafluoroethylene (PTFE) aqueous dispersion to form a PTFE/Polymer dispersion claim 2 , wherein the PTFE/Polymer dispersion comprises at least 1 wt % to no more than 10 wt % of said fiberizing polymer.9. The method of claim 8 , wherein the PTFE/Polymer dispersion ...

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02-07-2015 дата публикации

RESIN COMPOSITION AND USES OF THE SAME

Номер: US20150183952A1
Принадлежит:

A resin composition is provided. The resin composition includes a thermosetting resin component and a filler, wherein the thermosetting resin component has a dissipation factor (Df) of no more than 0.006 at 1 GHz, the filler is a ceramic powder obtained through a sintering process at a temperature ranging from 1300° C. to less than 1400° C., and the amount of the filler is 10 parts by weight to 600 parts by weight per 100 parts by weight of the thermosetting resin component. 1. A resin composition , comprising:a thermosetting resin component, having a dissipation factor (Df) of no more than 0.006 at 1 GHz; anda filler, which is a ceramic powder obtained through a sintering process at a temperature ranging from 1300° C. to less than 1400° C.,wherein, the amount of the filler is 10 parts by weight to 600 parts by weight per 100 parts by weight of the thermosetting resin component.2. The resin composition of claim 1 , wherein the filler is a ceramic powder obtained through a sintering process at a temperature ranging from 1350° C. to less than 1400° C.3. The resin composition of claim 1 , wherein the ceramic powder is selected from the group consisting of titanium dioxide (TiO) claim 1 , strontium titanate (SrTiO) claim 1 , calcium titanate (CaTiO) claim 1 , barium titanate (BaTiO) claim 1 , magnesium titanate (MgTiO) claim 1 , NPO ceramic power claim 1 , a co-sintered material of two or more of the foregoing compounds claim 1 , and combinations thereof.4. The resin composition of claim 3 , wherein the ceramic powder is selected from the group consisting of strontium titanate (SrTiO) claim 3 , barium strontium titanate (Sr(Ba)TiO) claim 3 , calcium strontium titanate (Sr(Ca)TiO) claim 3 , NPO ceramic power claim 3 , a co-sintered material of two or more of the foregoing compounds claim 3 , and combinations thereof.5. The resin composition of claim 1 , wherein the amount of the filler is 50 parts by weight to 400 parts by weight per 100 parts by weight of the ...

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28-05-2020 дата публикации

FUNCTIONALIZED PARTICULATE BICARBONATE AS BLOWING AGENT, FOAMABLE POLYMER COMPOSITION CONTAINING IT, AND ITS USE IN MANUFACTURING A THERMOPLASTIC FOAMED POLYMER

Номер: US20200165403A1
Принадлежит:

A chemical blowing agent for foaming a thermoplastic polymer, for example PVC plastisol or a polymer resin in an extrusion process, said chemical blowing agent comprising a functionalized particulate bicarbonate containing at least one polyoxyalkylene additive, preferably excluding an exothermic blowing agent. The polyoxyalkylene additive may be selected from the group consisting of polyoxyalkylenes, any derivative thereof, salts thereof, and any combinations thereof. The particulate bicarbonate may be preferably functionalized by spray-coating, extrusion or co-grinding with at least one polyoxyalkylene additive. The functionalized particulate bicarbonate may comprise 50 wt % to less than 100 wt % of the bicarbonate component, and 0.02-50 wt % of the additive. The functionalized particulate bicarbonate may further comprise 0.1-5 wt % silica. A foamable polymer composition comprising such chemical blowing agent. A process for manufacturing a foamed polymer, such as foamed PVC, comprising shaping and heating the foamable polymer composition, and a foamed polymer obtained by such process. 1. A chemical blowing agent for foaming a thermoplastic polymer precursor ,said chemical blowing agent comprising a functionalized particulate bicarbonate,wherein said functionalized particulate bicarbonate contains at least one functionalization additive, andwherein said functionalization additive in the functionalized particulate bicarbonate comprises a polyoxyalkylene additive selected from the group consisting of polyoxyalkylenes, any derivatives thereof, salts thereof, and any combination of two or more thereof.2. The chemical blowing agent according to claim 1 , wherein the blowing agent does not contain any further blowing agent which is an exothermic blowing agent claim 1 , or wherein the chemical blowing agent does not contain a compound which liberates nitrogen gas during heating claim 1 , or wherein the chemical blowing agent does not contain a compound which liberates ...

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28-05-2020 дата публикации

FLUOROCARBON PREPREG AND RESIN COMPOSITION THEREOF

Номер: US20200165434A1
Принадлежит:

A fluorocarbon resin composition is applicable to produce a prepreg for use in making a high-frequency circuit board, including a polytetrafluoroethylene resin; a fluorine-containing copolymer of poly fluoroalkoxy or fluorinated ethylene propylene; inorganic powders and an impregnation additive such as hydroxyethyl cellulos; resulted in that the prepreg is capable of increasing a plurality of times for proceeding impregnation-coating, the surface defects prone to occur on a fluorocarbon prepreg during drying, baking and sintering after impregnation are therefore improved at the same time. 1. A fluorocarbon resin composition , characterized in that the fluorocarbon resin composition comprises , on the basis of the total weight of the fluorocarbon resin composition being 100 wt %:(1) a polytetrafluoroethylene (PTFE) resin, accounting for 30 to 70 wt % of the fluorocarbon resin composition;(2) a fluorine-containing copolymer, selected from the group consisting of one or a combination of more of poly fluoroalkoxy (PFA) and fluorinated ethylene propylene (FEP) and accounting for 1 to 10 wt % of the solid content of the fluorocarbon resin composition;(3) inorganic powders, accounting for 5 to 60 wt % of the solid content of the fluorocarbon resin composition; and(4) an impregnation additive, selected from the group consisting of one or a combination of more of hydroxyethyl cellulose, nitrocellulose, polymethyl styrene, polymethyl methacrylate and polyethylene glycol, and accounting for 0.1 to 10 wt % of the solid content of the fluorocarbon resin composition.5. The fluorocarbon resin composition according to claim 1 , wherein the inorganic powders is one or more selected from the group consisting of silicon dioxide (SiO) claim 1 , titanium dioxide (TiO) claim 1 , aluminum hydroxide (Al(OH)) claim 1 , alumina (AlO) claim 1 , magnesium hydroxide (Mg(OH)) claim 1 , magnesium oxide (MgO) claim 1 , calcium carbonate (CaCO) claim 1 , boron oxide (BO) claim 1 , calcium oxide ( ...

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08-07-2021 дата публикации

METHOD FOR PRODUCING POROUS SILICONE MATERIALS

Номер: US20210206938A1
Принадлежит:

A method for producing a porous silicone material including the following steps: 1. A method for producing a porous silicone material , comprising the following steps: A) a silicone base A crosslinkable by polycondensation or polyaddition;', 'B) at least one nonionic silicone surfactant B having a cloud point comprised between 10 and 50° C., preferably between 15 and 45° C.;', 'C) optionally, at least one catalyst C; and', 'D) water;, '1) implementing a direct emulsion E of silicone in water comprising2) heating the emulsion E to a temperature greater than or equal to 60° C. to obtain a porous silicone material; and3) optionally, drying the porous silicone material, preferably by heating.2. Method according to claim 1 , wherein the nonionic silicone surfactant B is an organopolysiloxane-polyoxyalkylene copolymer claim 1 , preferably comprising siloxyl units having sequences of ethylene oxide chains claim 1 , and claim 1 , optionally claim 1 , sequences of propylene oxide chains.4. Method according to claim 1 , wherein the emulsion E comprises between 0.1 and 70% by mass of surfactant B relative to the total mass of silicone base contained in the emulsion claim 1 , preferably between 0.5 and 50% claim 1 , more preferably between 1 and 25% claim 1 , and even more preferably between 2 and 20%.5. Method according to claim 1 , wherein the emulsion E comprises between 10 and 80% of water by mass relative to the total mass of the emulsion claim 1 , preferably between 30 and 75% claim 1 , and even more preferably between 35 and 65%.6. Method according to claim 1 , wherein the silicone base A is crosslinkable by polyaddition and wherein the silicone base A comprises:at least one organopolysiloxane A1 comprising, per molecule, at least 2 alkenyl or alkynyl groups, linear or branched, having from 2 to 6 carbon atoms, andat least one organohydrogenpolysiloxane A2 comprising, per molecule, at least 2 silyl hydride functions Si—H.7. Method according to claim 1 , wherein the ...

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04-06-2020 дата публикации

LIGHT-BLOCKING ARTICLES WITH SPACER FUNCTIONAL COMPOSITION

Номер: US20200172690A1
Принадлежит:

A foamed, opacifying element useful as a light-blocking article has a substrate; an opacifying layer disposed on the substrate, and a functional composition disposed over the opacifying layer. The functional composition comprises: (i) glass particles such as hollow glass particles. The presence of the glass particles provides additional heat absorption for the foamed, opacifying elements that can be formed into light-blocking materials. 1. A foamed , opacifying element comprising:a substrate having a first opposing surface and a second opposing surface;an opacifying layer disposed on the first opposing surface of the substrate, anda functional composition disposed over the opacifying layer, the functional composition comprising (i) glass particles;wherein the opacifying layer comprises:(a) at least 0.1 weight % and up to and including 40 weight % of porous particles, each porous particle comprising a continuous polymeric phase and discrete pores dispersed within the continuous polymeric phase, the porous particles having a mode particle size of at least 2 μm and up to and including 50 μm;{'sub': 'g', '(b′) at least 10 weight % and up to and including 80 weight % of a matrix material that is derived from a (b) binder material having a glass transition temperature (T) of less than 25° C.;'}(c) at least 0.0001 weight % and up to and including 50 weight % of one or more additives selected from the group consisting of dispersants, foaming agents, foam stabilizing agents, plasticizers, flame retardants, optical brighteners, thickeners, biocides, tinting colorants, metal particles, and inert inorganic or organic fillers;(d) less than 5 weight % of water; and(e) at least 0.002 weight % of an opacifying colorant different from all of the one or more additives of (c), which opacifying colorant absorbs electromagnetic radiation having a wavelength of at least 380 nm and up to and including 800 nm,all amounts being based on the total weight of the opacifying layer.2. The foamed ...

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30-06-2016 дата публикации

INSTANTANEOUSLY WETTABLE POLYMER FIBER SHEET

Номер: US20160190656A1
Принадлежит: Amtek Research International LLC

A polymer fiber sheet exhibits high porosity and good tensile properties in both “wet” and “dry” states. A fiber modifying agent is incorporated into a polymer extrusion and fiber formation process to produce a highly porous polymer fiber sheet that is instantaneously wettable by an aqueous medium. The fiber modifying agent functions as either one or both (1) a plasticizer that reduces the polymer extrudate melt viscosity and allows the formation of fine fibers during processing and (2) a surface modifying agent that promotes the instantaneous and sustainable wettability of individual polymer fibers and a porous fiber sheet formed from them. The polymer fiber sheet maintains its wettability even after repeated washing and drying cycles. The resultant fiber sheet can be densified and embossed to provide a desired thickness and porosity, while at the same time longitudinal ribs with desired pattern can also be formed on the fiber sheet. 1. A high porosity polymer fiber sheet that is instantaneously wettable by an aqueous medium , comprising:a three-dimensional matrix of polymer fibers, the matrix having a thickness and interconnecting pores that communicate throughout the thickness of the matrix; anda fiber modifying agent distributed throughout the matrix, the fiber modifying agent anchored to the polymer fibers of the matrix and providing instantaneous and sustained wettability to the high porosity polymer fiber sheet.2. The polymer fiber sheet of claim 1 , in which the polymer fibers are formed from a thermoplastic resin having a melt viscosity claim 1 , and in which the fiber modifying agent functions as both a plasticizer that reduces the melt viscosity of the thermoplastic resin during polymer fiber formation and as a surface modifying agent that promotes the instantaneous and sustained wettability of the high porosity polymer fiber sheet.3. The polymer fiber sheet of claim 2 , in which the fiber modifying agent is selected from a group consisting essentially of ...

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11-06-2020 дата публикации

SURFACE FUNCTIONALIZATION

Номер: US20200179928A1
Принадлежит:

This invention is in the field of surface modification. In particular, the invention relates to the surface modification of microfluidic devices to alter surface hydrophobicity characteristics. 1. A method of functionalizing the surface of a microfluidic channel comprising the steps of: i) an enclosed microfluidic channel comprising an unmodified surface;', 'ii) a bifunctional crosslinker;', 'iii) surface hydrophobicity modifying molecules;, 'a) providing;'}b) exposing at least a portion of said surface of said channel to said bifunctional crosslinker;c) activating said crosslinker under first conditions to create a crosslinked channel; andd) exposing said crosslinked channel to said surface hydrophobicity modifying molecules under second conditions to create a functionalized channel.2. The method of claim 1 , wherein said enclosed microfluidic channel is a portion of a microfluidic device.3. (canceled)4. The method of claim 1 , wherein said enclosed microfluidic channel is serpentine.5. (canceled)6. The method of claim 1 , wherein said enclosed microfluidic channel further comprises a bubble.7. The method of claim 6 , further comprising the step of clearing said bubble from said enclosed microfluidic channel claim 6 , wherein said functionalized channel surface improves the clearance of said bubble compared to the unmodified surface.8. (canceled)9. (canceled)10. The method of claim 1 , wherein said crosslinker is photoactivatable.11. The method of claim 10 , wherein said first conditions comprise exposing said crosslinker to light.12. The method of claim 11 , wherein said exposure to light comprises rastering or pattern projection.13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. The method of claim 1 , wherein said activating of step c) is done without added heat.19. (canceled)20. (canceled)21. The method of claim 1 , wherein said surface hydrophobicity modifying molecules are selected from the group consisting of hydrophilic molecules and ...

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18-06-2020 дата публикации

Synergistic toughening of epoxy modified by graphene and block copolymer

Номер: US20200190312A1
Принадлежит: University of Minnesota

Embodiments are directed to compositions comprising (i) amphiphilic block copolymer, (ii) resin material; and amine modified graphene oxide; where the composition shows a synergic effect in critical strain energy release rate (Glc) value versus predicted value calculated by adding (i) the Glc value for neat resin material, plus (ii) the difference in Glc found when adding the amphiphilic block copolymer to the resin material versus the neat resin material, plus (iii) the difference in Glc found when adding the amine modified graphene oxide to the resin material versus the neat resin material.

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04-07-2019 дата публикации

Visible light-curable water-soluble chitosan derivative, chitosan hydrogel, and preparation method therefor

Номер: US20190202998A1

The present invention relates to a visible light-curable chitosan derivative, a hydrogel, and a preparation method therefor and, more specifically, to a visible light-curable glycol chitosan derivative which is cured by light in the visible light range and has wound healing ability, a hydrogel, and a preparation method therefor. A hydrogel obtained by cross-linkage of the visible light-curable glycol chitosan derivative according to the present invention using visible light has a wound healing effect per se, and further, a hydrogel obtained by cross-linkage in a combination of one or more growth factors has an excellent wound healing effect. In addition, a glycol chitosan hydrogel that can prevent the denaturation of contained drugs and growth factors due to the cross-linkage by visible light and is optimized for application to a wet dressing dosage form can be prepared.

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05-08-2021 дата публикации

CELL ENCAPSULATION COMPOSITIONS AND METHODS FOR IMMUNOCYTOCHEMISTRY

Номер: US20210239683A1
Принадлежит: The University of British Columbia

Provided herein are compositions comprising: a scaffold polymer having one or more acryloyl groups or one or more methacryloyl groups; optionally a porogen and a crosslinking agent, compositions that upon crosslinking form a hydrogel for use in cell encapsulation and methods for immunocytochemistry of encapsulated cells. Scaffold polymers used are selected from: Poly(ethylene glycol) diacrylate (PEGDA); Poly(ethylene glycol) dimethylacrylate (PEGDMA); Poly(ethylene glycol) methyl ether acrylate (PEGMEA); Poly(ethylene glycol) methacrylate (PEGMA); and Poly(ethylene glycol) methyl ether methacrylate (PEGMEMA), and porogens selected from: Poly(ethylene glycol) (PEG); Chitosan; Agarose; Dextran; Hyaluronic acid; Poly(methyl methacrylate) (PMMA); Cellulose and derivatives thereof; Gelatin and derivatives thereof; and Acrylamide and derivatives thereof. The invention also provides, at least in part, compositions for forming a porous hydrogel around a cell suitable for immunostaining of cells within the hydrogel. 1. A composition , the composition comprising: (i) has one or more acryloyl group or one or more methacryloyl groups;', {'sub': 'n', '(ii) has an average molecular weight (M) between about 300 and about 6,000;'}, '(iii) is water soluble and biocompatible; and', '(iv) is operable to form a hydrogel following cross-linking;, '(a) a scaffold polymer, wherein the scaffold polymer(b) a porogen; and(c) a crosslinking agent;wherein, the composition has a density of between about 1.0 g/ml and about 1.12 g/ml at 25° C.2. The composition of claim 1 , wherein composition has a density of between about 1.0 g/ml and about 1.10 g/ml at 25° C.3. The composition of or claim 1 , wherein composition has a density of between about 1.0 g/ml and about 1.08 g/ml at 25° C.4. The composition of claim 1 , or claim 1 , wherein scaffold polymer has an average molecular weight (M) between about 300 and about 3 claim 1 ,000.5. The composition of any one of - claim 1 , wherein the scaffold ...

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13-08-2015 дата публикации

METHOD FOR ADHERING HYDROGELS

Номер: US20150225519A1
Принадлежит: RIKEN

There is provided a method for bonding together hydrogels by interposing a polyalkylene glycol between the gel surfaces to be bonded together of hydrogels. A method for bonding together hydrogels of the same type or different types, the method including: interposing a polyalkylene glycol between gel surfaces to be bonded together of the hydrogels and joining together the gel surfaces. 1. A method for bonding together hydrogels of the same type or different types , the method comprising:interposing a polyalkylene glycol between gel surfaces to be bonded together of the hydrogels and joining together the gel surfaces.2. The method for bonding together hydrogels according to claim 1 , whereinthe polyalkylene glycol is selected from the group consisting of polyethylene oxide, polypropylene oxide, and poly(ethylene oxide-co-propylene oxide).3. The method for bonding together hydrogels according to claim 2 , whereinthe polyalkylene glycol is a polyethylene oxide having a weight average molecular weight of 100,000 to 10,000,000.4. The method for bonding together hydrogels according to claim 1 , whereinthe hydrogels are each a hydrogel comprising a water-soluble organic polymer (A) having an organic acid salt structure or an organic acid anion structure, a silicate salt, and a dispersant for the silicate salt or a hydrogel comprising a water-soluble organic polymer (A′) and the silicate salt.5. The method for bonding together hydrogels according to claim 4 , whereinthe water-soluble organic polymer (A) is a water-soluble organic polymer having a carboxylate salt structure or a carboxy anion structure.6. The method for bonding together hydrogels according to claim 5 , whereinthe water-soluble organic polymer (A) is a fully neutralized or partially neutralized polyacrylate salt.7. The method for bonding together hydrogels according to claim 6 , whereinthe water-soluble organic polymer (A) is a fully neutralized or partially neutralized polyacrylate salt having a weight ...

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02-08-2018 дата публикации

PROTEIN NANOFIBER AIR FILTER MATERIALS AND METHODS

Номер: US20180214813A1
Принадлежит: WASHINGTON STATE UNIVERSITY

Air filters formed from mats of protein-containing nanowires are provided. The nanowires are formed into a mat with pores that allow air to pass through while physically filtering particulate matter. The protein in the protein-containing nanowires also serves to chemically filter polluted air passed through the filter. Specifically, chemical functional groups from the many amino acids that comprise the protein of the protein-containing nanowire react with certain chemical pollutants (e.g., carbon monoxide and formaldehyde) in order to capture or otherwise neutralize the pollutant. Accordingly, the single nanofiber mat performs two filtering functions. Methods of filtering air using the provided air filters are also disclosed, as well as methods for making the air filters from protein-containing nanofibers. 1. An air filter , comprising a porous nanofiber mat configured to filter particles having a diameter of about 0.1 μm or greater when air is passed through the air filter , the porous nanofiber mat comprising a plurality of protein-containing nanofibers , comprising a protein configured to bind to , and thereby filter , at least one chemical species.2. The air filter of claim 1 , wherein at least a portion of the plurality of protein-containing nanofibers consist essentially of protein.3. The air filter of claim 2 , wherein the protein is selected from the group consisting of plant-based proteins claim 2 , animal-based proteins claim 2 , and synthetic proteins.4. The air filter of claim 1 , wherein at least a portion of the plurality of protein-containing nanofibers are composite nanofibers comprising protein and a polymer.5. The air filter of claim 4 , wherein the protein is selected from the group consisting of plant-based proteins claim 4 , animal-based proteins claim 4 , and synthetic proteins.6. The air filter of claim 4 , wherein the polymer is selected from the group consisting of poly(vinyl alcohol) (PVA) claim 4 , poly(ethylene oxide) (PEO) claim 4 , poly ...

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02-08-2018 дата публикации

LECITHIN MICROEMULSIONS AND USES THEREOF

Номер: US20180214839A1
Автор: Baseeth Shireen S.
Принадлежит: ARCHER DANIELS MIDLAND COMPANY

The present disclosure is directed to compositions including a microemulsion comprising lecithin, a polysorbate, an alkyl polyglycoside, and optionally a solvent. Uses of the microemulsions are also disclosed. 1. A microemulsion comprising:lecithin;a polysorbate; andan alkyl polyglycoside.2. The microemulsion of claim 1 , further comprising a solvent.3. The microemulsion of claim 2 , wherein the solvent is an ester of an organic acid.4. The microemulsion of claim 3 , wherein the ester is an alkyl ester.5. The microemulsion of claim 1 , wherein the lecithin is selected from the group consisting of crude filtered lecithin claim 1 , de-oiled lecithin claim 1 , chemically modified lecithin claim 1 , enzymatically modified lecithin claim 1 , standardized lecithin claim 1 , and combinations of any thereof.6. The microemulsion of claim 1 , further comprising a non-polar compound.7. The microemulsion of claim 1 , wherein:the lecithin comprises 1-15% by weight of the microemulsion;the polysorbate comprises 15-35% by weight of the microemulsion; andthe alkyl polyglycoside comprises 15-35% by weight of the microemulsion.8. The microemulsion of claim 7 , further comprising a solvent present at 5-15% by weight of the microemulsion.9. The microemulsion of claim 6 , wherein the non-polar compound is a methyl ester.10. The microemulsion of claim 1 , further comprising water.1113-. (canceled)14. A microemulsion concentrate comprising:lecithin;a polysorbate;an alkyl polyglycoside; anda solvent.15. The microemulsion concentrate of claim 14 , having a pH of between 5 and 9.16. The microemulsion concentrate of claim 14 , wherein the solvent is an ester of an organic acid.17. The microemulsion concentrate of claim 16 , wherein the ester of the organic acid is ethyl lactate.18. The microemulsion concentrate of claim 14 , wherein:the lecithin comprises 1-15% by weight of the microemulsion concentrate;the polysorbate comprises 15-35% by weight of the microemulsion concentrate;the alkyl ...

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11-07-2019 дата публикации

METHOD FOR PREPARING NANOPOROUS POLYSULFONE-BASED POLYMERS

Номер: US20190211175A1
Принадлежит: NANJING TECH UNIVERSITY

The present invention relates to a method for preparing nanoporous polysulfone-based polymers, including: a copolymer of a polysulfone polymer and a polar polymer is immersed into a compound swelling agent, and maintained for at least 1 minute above room temperature; the compound swelling agent is a “solvent pair” composed of the mixture of solvent A and solvent B; the solvent A has high affinity with the polysulfone polymer; and the solvent B has high affinity with the polar polymer; the treated copolymer is taken out from the compound swelling agent and then dried to remove the solvent to obtain the nanoporous polysulfone-based polymers. 1. A method for preparing nanoporous polysulfone-based polymers , the steps comprising:1) immersing a copolymer of a polysulfone polymer and a polar polymer into a compound swelling agent, and maintaining this for at least 1 minute above room temperature; the compound swelling agent is a “solvent pair” composed of the mixture of solvent A and solvent B; the solvent A has high affinity with the polysulfone polymer; and the solvent B has high affinity with the polar polymer;2) taking the copolymer treated in Step 1) out from the compound swelling agent and then drying it to remove the solvent to obtain the nanoporous polysulfone-based polymers.2. The method according to claim 1 , wherein the polar polymer mentioned in Step 1) is a water-soluble or alcohol-soluble polymer claim 1 , which is preferably polyethylene glycol claim 1 , methoxy polyethylene glycol claim 1 , polypropylene glycol or polyvinylpyrrolidone claim 1 , most preferably polyethylene glycol.3. The method according to claim 1 , wherein in the copolymer of the polysulfone polymer and the polar polymer mentioned in Step 1) claim 1 , the volume of the polar polymer accounts for 5-40% of the entire copolymer volume.4. The method according to claim 1 , wherein the solvent A in the compound swelling agent mentioned in Step 1) is any one selected from the group consisting of ...

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09-08-2018 дата публикации

ORGANIC INFRARED ATTENUATION AGENTS

Номер: US20180223062A1
Принадлежит:

Organic infrared attenuation agents have been developed to improve the thermal insulation properties of polymeric foams such as polystyrene low density foams. The organic infrared attenuation agents can include polyols such as sorbitol, maltitol, and poly(ethylene glycol), polysaccharides such as starch or cellulose, and infrared attenuation polyesters such as polybutylene terephthalate. The organic attenuation agents include aromatic compounds or carbon oxygen bonds that are effective in absorbing infrared radiation at the desired wavelengths. 1. An insulating polymer foam formed from a composition comprising:an alkenyl aromatic polymer material;a blowing agent comprising one or more hydrofluoroolefins (HFOs); andan organic infrared attenuation agent having an oxygen to carbon molar ratio from 1:1 to 1:2.2. The insulating polymer foam of claim 1 , wherein the polymer material comprises polystyrene.3. The insulating polymer foam of claim 1 , wherein the one or more hydrofluoroolefins (HFOs) comprises trans-1 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrafluoropropene (HFO-1234ze).4. The insulating polymer foam of claim 1 , wherein the blowing agent further comprises carbon dioxide.5. The insulating polymer foam of claim 1 , wherein the organic infrared attenuation agent comprises one or more of:a polyol selected from the group consisting of sugar alcohols and polymeric polyols,a carbohydrate,recycled paint, andcoal tar pitch6. The insulating polymer foam of claim 5 , wherein the polyol is selected from the group consisting of sorbitol claim 5 , maltitol claim 5 , and polyethylene glycol.7. The insulating polymer foam of claim 5 , wherein the carbohydrate is a polysaccharide.8. The insulating polymer foam of claim 7 , wherein the polysaccharide comprises pea starch or reclaimed cellulose.9. The insulating polymer foam of claim 5 , wherein the recycled paint comprises a polyester.10. The insulating polymer foam of claim 9 , wherein the polyester is polybutylene terephthalate ...

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18-08-2016 дата публикации

EO/PO BLOCK COPOLYMERS USEFUL AS STABILIZERS FOR PUR FOAMS

Номер: US20160235880A1
Автор: Schoenberger Jan
Принадлежит:

The invention relates to compositions for producing hydrophilicized polyurethane foams, in particular for wound management, wherein the composition, containing a polyurethane dispersion and specific additives, is frothed and dried. 113- (canceled)14. A polyurethane foam comprising an EO/PO block copolymer as stabilizer.15. The polyurethane foam of claim 14 , wherein said EO/PO block copolymer comprises 5% to 95% by weight of ethylene oxide units based on the sum total of all ethylene oxide and propylene oxide units and has a number-average molecular weight of 1 claim 14 ,000 to 10 claim 14 ,000 g/mol.171. The polyurethane foam of claim claim 14 , wherein said polyurethane foam is hydrophilicized as well as stabilized.18. The polyurethane foam of claim 14 , wherein said polyurethane foam is obtained from aqueous polyurethane dispersions by physical drying.19. A composition comprising an aqueous claim 14 , anionically hydrophilicized polyurethane dispersion (I) and foam additives (II) claim 14 , wherein said foam additives (II) comprise an EO/PO block copolymer.20. The composition of claim 19 , wherein said EO/PO block copolymer comprises 5% to 95% by weight of ethylene oxide units based on the sum total of all ethylene oxide and propylene oxide units and has a number-average molecular weight of 1 claim 19 ,000 to 10 claim 19 ,000 g/mol.21. The composition of claim 19 , wherein said aqueous claim 19 , anionically hydrophilicized polyurethane dispersion (I) is obtained byA) producing isocyanate-functional prepolymers from at leastA1) organic polyisocyanates;A2) polymeric polyols having number-average molecular weights in the range of from 400 to 8,000 g/mol and OH functionalities in the range of from 1.5 to 6;A3) optionally hydroxyl-functional compounds having molecular weights in the range of from 62 to 399 g/mol; andA4) optionally isocyanate-reactive, anionic, or potentially anionic and/or optionally nonionic hydrophilicizing agents;andB) wholly or partially reacting ...

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27-08-2015 дата публикации

SYNERGISTIC EFFECT OF MULTIPLE MOLD RELEASE ADDITIVES IN POLYCARBONATE BASED COMPOSITIONS

Номер: US20150240073A1
Принадлежит: SABIC INNOVATIVE PLASTICS IP B.V.

The present disclosure relates to a thermoplastic composition having a better mold release performance. The disclosed thermoplastic composition comprises polycarbonate components, an impact modifier and a mold release composition. Also disclosed is a method for making the disclosed thermoplastic composition and an article of manufacture comprising the disclosed polymer composition. 1. A thermoplastic composition comprising:(a) from about 10 wt % to about 80 wt % of a first polycarbonate;(b) an impact modifier composition from about 1 wt % to about 30 wt %,wherein the combined weight percent of components (a) through (b) does not exceed 100 wt %, wherein all weight percent values are based on the total weight of the thermoplastic composition; and(c) a mold release composition comprising at least two different mold release additives from about 0.01 parts by weight to about 1.5 parts by weight added to 100 parts by weight of the thermoplastic composition excluding the mold release composition, wherein one or more of the at least two different mold release additives comprises pentaerithritol tetrastearate, glycerol monostearate, glycerol tristearate, poly(alfa) olefin, poly(ethylene oxide-propylene oxide-ethylene oxide), or any combination thereof; andwherein a molded sample of the thermoplastic composition has better mold release performance compared to a substantially identical reference composition in the absence of the mold release composition, and wherein the presence of the mold release composition has substantially no impact on the mechanical and physical properties.2. The thermoplastic composition of claim 1 , wherein the at least two different mold release additives comprise pentaerithritol tetrastearate in an amount higher than a second one of the at least two mold release additives.3. The thermoplastic composition of claim 1 , wherein the mold release composition comprises at least two of the mold release additives that are present in the weight ratio in the ...

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06-11-2014 дата публикации

Cellulose Blends with Enhanced Water Retention and Their Use in Irrigation

Номер: US20140326029A1
Автор: Asghar Ali, Hashaikeh Raed
Принадлежит:

Water-retaining gel compositions, methods of making water-retaining gel compositions, and the uses thereof for enhancing soils, preparing plant growth media and facilitating the growth of plants therein are disclosed. 1. A method of making a water-retaining gel composition , comprising:hydrolyzing cellulose in a dissolution media to form a first mixture; then combining said first mixture with an antisolvent to form a precipitate, said antisolvent comprising a swellable hydrophilic polymer and water; and then, in any order;separating said precipitate from excess antisolvent and excess dissolution media;optionally adjusting or neutralizing the pH of said precipitate; andoptionally washing said precipitate with water to form said water-retaining gel composition.2. The method of claim 1 , wherein said gel composition has a pH of from 4 to 9.3. The method of claim 1 , wherein said hydrophilic polymer comprises polyethylene oxide.4. The method of claim 1 , further comprising the step of drying said composition.5. The method of claim 1 , further comprising the step of mixing said precipitate with particulate media (e.g. claim 1 , sand) to form a mixture thereof.6. The method of claim 1 , further comprising the step of drying said mixture to form7. A water-retaining gel composition claim 1 , comprising claim 1 , consisting of or consisting essentially of:(a) from 2 to 80 percent by weight of networked cellulose;(b) from 10 to 95 percent by weight of a swellable hydrophilic polymer in said networked cellulose; and(c) optionally, water to balance.8. The gel composition of claim 7 , wherein said hydrophilic polymer comprises polyethylene oxide.9. The gel composition of claim 7 , wherein said composition is hydrated.10. The gel composition of claim 7 , wherein said composition is dry.11. A method of enhancing water-retention in a sandy soil claim 7 , comprising mixing a gel composition of with said soil in an amount effective to enhance water retention therein.12. A method of ...

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25-07-2019 дата публикации

FUNCTIONALIZED PARTICULATE BICARBONATE AS BLOWING AGENT, FOAMABLE POLYMER COMPOSITON CONTAINING IT, AND ITS USE IN MANUFACTURING A THERMOPLASTIC FOAMED POLYMER

Номер: US20190225765A1
Принадлежит: SOLVAY SA

A chemical blowing agent for foaming a thermoplastic polymer, for example PVC plastisol or a polymer resin in an extrusion process, comprising a functionalized particulate bicarbonate containing at least one additive, preferably excluding an exothermic blowing agent. The additive may be selected from the group consisting of polymers; inorganic salts; oils; fats; resin acids, any derivative thereof, and salts thereof; amino acids; fatty acids; carboxylic or polycarboxylic acids, soaps; waxes; derivatives thereof; salts thereof; or any combinations thereof. The particulate bicarbonate may be functionalized by spray-drying, coating, extrusion or co-grinding with at least one additive. The functionalized particulate bicarbonate may comprise 50 wt % to less than 100 wt % of the bicarbonate component, and 0.02-50 wt % of the additive. A foamable polymer composition comprising such chemical blowing agent. A process for manufacturing a foamed polymer, such as foamed PVC, comprising shaping and heating the foamable polymer composition, and a foamed polymer obtained by such process. 1. A chemical blowing agent for foaming a thermoplastic polymer precursor ,said chemical blowing agent comprising a functionalized particulate bicarbonate,wherein said functionalized particulate bicarbonate contains at least one additive, andwherein said additive in the functionalized particulate bicarbonate is at least one following compound:one or more polymers;one or more amino acids, any derivative thereof, and salts thereof;one or more inorganic salts;one or more oils;one or more fats;one or more resin acids, any derivative thereof, and salts thereof;one or more fatty acids, any derivative thereof, and salts thereof;a carboxylic or polycarboxylic acid, derivative thereof (such as esters), or salts thereof;one or more soaps;one or more waxes; orany combinations thereof.2. The chemical blowing agent according to claim 1 , wherein the blowing agent does not contain any further blowing agent ...

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16-07-2020 дата публикации

HIGHLY FIRE-RESISTANT EXPANDED POLYMERIC MATERIAL

Номер: US20200224010A1
Принадлежит:

A highly fire-resistant expanded polymeric material for thermal insulation, acoustic insulation and/or fire barrier contains rubber, expandable graphite, at least one alkaline earth metal component selected from alkaline earth metal carbonates, alkaline earth metal hydroxides, hydrates of either, and combinations thereof, and a component containing silica or a silicate. The expanded polymeric material is preferably manufactured by a process including decomposition of a chemical blowing agent. 1. An expanded polymeric material comprising:100 phr rubber,expandable graphite,at least one alkaline earth metal component selected from the group consisting of alkaline earth metal carbonates, alkaline earth metal hydroxides, hydrates thereof, and combinations thereof, anda component containing silica or silicate;wherein a total mass of the ingredients in the expanded polymeric material is at least 300 phr and less than 1200 phr.2. The expanded polymeric material according to claim 1 , wherein the total mass of ingredients in the expanded polymeric material is at least 400 phr.3. The expanded polymeric material according to or claim 1 , wherein the total mass of ingredients in the expanded polymeric material is 1100 phr or less.4. The expanded polymeric material according to any one of to claim 1 , wherein the total mass of ingredients in the expanded polymeric material is 400 phr or more and 1100 phr or less.5. The expanded polymeric material according to any one of to claim 1 , wherein the expandable graphite is present in an amount of 5 to 200 phr.6. The expanded polymeric material according to any one of to claim 1 , wherein the at least one alkaline earth metal component is present in a total amount of 50 to 500 phr.7. The expanded polymeric material according to any one of to claim 1 , wherein the component containing silica or silicate is present in an amount of 5 to 200 phr.8. The expanded polymeric material according to any one of to claim 1 , wherein the expandable ...

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09-09-2021 дата публикации

Treated porous material

Номер: US20210277201A1
Автор: Stephen W. King
Принадлежит: Dow Global Technologies LLC

A treated cellulosic material comprising: a cellulosic material having a porous structure defining a plurality of pores, the cellulosic material comprising wood including wood or wood composite materials, at least a portion of the pores containing a treating agent comprising: a polymer comprising a water soluble polyol; and a modifying agent comprising a hydrophobic polyalkylene polyol. A method for preparing a treated cellulosic material comprising: providing a cellulosic material; a first treatment protocol comprising impregnating the cellulosic material with a polymer, the polymer comprising a water-soluble polyol; and a second treatment protocol comprising impregnating the cellulosic material with a modifying agent, the modifying agent comprising a hydrophobic polyalkylene polyol.

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30-08-2018 дата публикации

STYRENE RESIN EXTRUDED FOAM BODY AND METHOD FOR PRODUCING SAME

Номер: US20180244884A1
Принадлежит: KANEKA CORPORATION

A styrene resin extruded foam includes 100 parts by weight of a styrene resin and 0.05 to 5.0 parts by weight of polyethylene glycol. 1. A styrene resin extruded foam , comprising:100 parts by weight of a styrene resin; and0.05 to 5.0 parts by weight of polyethylene glycol.2. The styrene resin extruded foam according to claim 1 , further comprising a hydrofluoroolefin claim 1 , wherein an amount of the hydrofluoroolefin added to 100 parts by weight of the styrene resin is 3.0 to 14.0 parts by weight.3. The styrene resin extruded foam according to claim 1 , further comprising 1.0 to 5.0 parts by weight of graphite.4. The styrene resin extruded foam according to claim 1 , wherein the polyethylene glycol has an average molecular weight of 1000 to 25000.5. The styrene resin extruded foam according to claim 2 , wherein the hydrofluoroolefin is a tetrafluoropropene.6. The styrene resin extruded foam according to claim 1 , wherein the styrene resin extruded foam has a thickness of 10 to 150 mm.7. The styrene resin extruded foam according to claim 1 , wherein the styrene resin extruded foam has an apparent density of 20 to 60 kg/mand a closed cell ratio of not less than 80%.8. The styrene resin extruded foam according to claim 1 , further comprising 0.5 to 5.0 parts by weight of a bromine flame retarder. One or more embodiments of the present invention relate to a styrene resin extruded foam which is obtained by extrusion foaming with use of a styrene resin and a foaming agent. One or more embodiments of the present invention further relate to a method for producing such a styrene resin extruded foam.In general, a styrene resin extruded foam is continuously produced by (i) heating a styrene resin composition with use of an extruder or the like so that the styrene resin composition is melted, (ii) adding a foaming agent to a molten styrene resin composition under a high pressure condition, (iii) cooling a resultant mixture to a given resin temperature, and then (iv) ...

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08-08-2019 дата публикации

PITCH GRANULES WHICH ARE SOLID AT ROOM TEMPERATURE

Номер: US20190241813A1
Автор: Mesnil Jean-Pierre
Принадлежит: TOTAL MARKETING SERVICES

Pitch granules including a core made up of a first composition including at least one pitch, the composition having a penetrability at 25° C. of 0 to 45 1/10 mm, a ring-and-ball softening temperature (TBA) of 55° C. to 175° C., understanding the penetrability as measured according to standard EN 1426 and the TBA as measured according to standard EN 1427, and a layer encapsulating at least one portion of the surface of the core, the layer being made up of a coating composition including at least one anti-caking agent. 18-. (canceled)9. Pitch pellets comprising:a core constituted of a first composition comprising at least one pitch, said composition having a penetrability at 25° C. ranging from 0 to 45 1/10 mm and a ring and ball softening point (RBSP) ranging from 55° C. to 175° C., it being understood that the penetrability is measured according to the standard EN 1426 and that the RBSP is measured according to the standard EN 1427, anda layer coating at least part of the surface of the core, said layer being constituted of a coating composition comprising at least one anticaking agent chosen from pyrogenic silicas, and mixtures thereof.10. The pitch pellets as claimed in claim 9 , wherein the anticaking agent is chosen from hydrophobic or hydrophilic pyrogenic silicas and mixtures thereof.11. The pitch pellets as claimed in claim 9 , wherein the coating composition comprises at least 10% by mass of anticaking agent claim 9 , relative to the total mass of the composition.12. The pitch pellets as claimed in claim 11 , wherein the coating composition comprises from 10% to 90% by mass of anticaking agent claim 11 , relative to the total mass of the composition.13. The pitch pellets as claimed in claim 12 , wherein the coating composition comprises from 15% to 90% by mass of anticaking agent claim 12 , relative to the total mass of the composition.14. The pitch pellets as claimed in claim 9 , wherein the coating composition also comprises at least one viscosifying ...

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23-09-2021 дата публикации

RELEASE HARD COATING, RELEASE FILM, AND PHOTOVOLTAIC MODULE

Номер: US20210292501A1
Принадлежит:

The present invention provides a release hard coating, comprising a bottom hard coating component and a top release coating component, wherein the bottom hard coating component comprises a crosslinked polymer matrix and nano-silica particles; and the top release coating component comprises a release polymer capable of having a grafting reaction with the bottom hard coating component. The release hard coating can be applied onto a substrate such as PET to resist sticky illegal advertisements and protect the substrate from wear. 1. A release hard coating , comprising a bottom hard coating component and a top release coating component , wherein the bottom hard coating component comprises a crosslinked polymer matrix and nano-metal oxide particles; and the top release coating component comprises a release polymer capable of having a grafting reaction with the bottom hard coating component.2. The release hard coating according to claim 1 , wherein the bottom hard coating component further comprises particulates with a particle diameter between 0.5 μm and 100 μm.3. The release hard coating according to claim 2 , wherein the particulates are selected from the group consisting of micron-sized polymer particles claim 2 , micron-sized inorganic metal oxide particles claim 2 , micron-sized metal salt particles claim 2 , and combinations thereof.4. The release hard coating according to claim 3 , wherein the micron-sized polymer particles are selected from the group consisting of polymethyl methacrylate (PMMA) claim 3 , polystyrene (PS) claim 3 , and combinations thereof.5. The release hard coating according to claim 3 , wherein the micron-sized inorganic metal oxide particles are selected from the group consisting of silica claim 3 , alumina claim 3 , titania claim 3 , and combinations thereof.6. The release hard coating according to claim 3 , wherein the micron-sized metal salt particles are selected from the group consisting of calcium carbonate claim 3 , calcium sulfate ...

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23-09-2021 дата публикации

METHOD FOR PREPARING GRAFT COPOLYMER POWDER

Номер: US20210292538A1
Принадлежит:

The present invention relates to a method for preparing a graft copolymer powder, which includes: performing emulsion polymerization of a conjugated diene polymer, an aromatic vinyl monomer and an alkyl (meth)acrylate monomer to prepare a graft copolymer latex; coagulating the graft copolymer latex; aging the coagulated graft copolymer; preparing a wet powder of the graft copolymer by dehydrating the aged graft copolymer; and adding poly(oxyalkylene)diglycolic acid to the wet powder of the graft copolymer. 1. A method for preparing a graft copolymer powder , comprising:performing emulsion polymerization of a conjugated diene polymer, an aromatic vinyl monomer and an alkyl (meth)acrylate monomer to prepare a graft copolymer latex;coagulating the graft copolymer latex;aging the coagulated graft copolymer;dehydrating the aged graft copolymer to prepare a wet powder of the graft copolymer; andadding poly(oxyalkylene)diglycolic acid to the wet powder of the graft copolymer.2. The method of claim 1 , wherein the poly(oxyalkylene)diglycolic acid is poly(oxyethylene)diglycolic acid.3. The method of claim 1 , wherein the poly(oxyalkylene)diglycolic acid is added at 0.1 to 5 parts by weight with respect to 100 parts by weight of the wet powder of the graft copolymer.4. The method of claim 1 , wherein the poly(oxyalkylene)diglycolic acid is added while in a state of being mixed with water.5. The method of claim 1 , wherein the wet powder of the graft copolymer has a moisture content of 10 to 40%.6. The method of claim 1 , wherein the aging is performed at 50 to 98° C.7. The method of claim 1 , wherein the aging is performed for 20 to 100 minutes.8. The method of claim 1 , wherein the preparing of the graft copolymer latex is preparing a graft copolymer latex through emulsion polymerization by further adding a vinylcyano monomer.9. The method of claim 1 , further comprising drying following the addition of the poly(oxyalkylene)diglycolic acid.10. The method of claim 1 , wherein ...

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24-09-2015 дата публикации

POLYMERIC NANOCOMPOSITES AND METHODS FOR THEIR PREPARATION AND USE

Номер: US20150267011A1
Принадлежит:

Methods of forming a polymeric nanocomposite are provided. The methods include combining one or more monomers to form a mixture and adding a plurality of carbon fibers to the mixture prior to or concurrently with formation of a polymer from the monomers. The methods can also include polymerizing the monomers to form the polymer and adding a hydrophobic agent and a plasticizer to the mixture to form the polymer nanocomposite. 112-. (canceled)13. A method of forming a polymeric nanocomposite , the method comprising:milling a plurality of carbon microfibers and carbon nanofibers dispersed in a surfactant to form milled hybrid carbon fibers;esterifying polyvinyl acetate to form polyvinyl alcohol (PVA) gel;adding the milled hybrid carbon fibers to the polyvinyl acetate prior to or concurrently with formation of the polyvinyl alcohol (PVA) gel; andadding a hydrophobic agent and a plasticizer to the PVA gel and hybrid carbon fibers to form the polymer nanocomposite.14. The method of claim 13 , wherein the hybrid carbon fibers are added to the polyvinyl acetate concurrently with formation of the polyvinyl alcohol (PVA) gel.15. The method of claim 13 , wherein the hybrid carbon fibers are added to the polyvinyl acetate upon initiation of formation of the polyvinyl alcohol (PVA) gel.16. The method of claim 13 , wherein esterifying polyvinyl acetate comprises:combining methanol, methyl acetate, and polyvinyl acetate to form a homogenous solution; andadding sodium hydroxide to the homogenous solution.17. The method of claim 13 , wherein the surfactant comprises sodium dodecyl sulphate (SDS) claim 13 , tri-n-octylphosphine (TOPO) claim 13 , triton X-100 claim 13 , cetyltrimethylammonium bromide (CTAB) claim 13 , cetyl trimethylammonium chloride (CTAC) claim 13 , cetylpyridinium chloride (CPC) claim 13 , or combinations thereof.18. The method of claim 13 , wherein milling the plurality of carbon microfibers and carbon nanofibers comprises ball milling.19. The method of claim 13 , ...

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13-09-2018 дата публикации

FLEXIBLE WEARABLE DRY ELECTRODE AND PREPARATION METHOD THEREOF

Номер: US20180256105A1
Автор: Gu Xiaohu, Huang Youke
Принадлежит:

The present invention provides a flexible wearable dry electrode and a preparation method thereof. A flexible wearable dry electrode comprises a base fabric, a transfer glue layer and a nano-conductive layer that are successively attached; the formulation of the transfer glue layer is as follows: weighed in weight percentage, 50%-90% of an elastic resin, 5%-15% of a curing agent, and 5%-35% of a filler; the formulation of the nano-conductive layer is as follows: weighed in parts by weight, 0.1-20 parts of a conductive nanomaterial, 0.1-30 parts of a dispersant, and 0.01-5 parts of a binder. The preparation method thereof is as follows: a conductive coating liquid and a transfer glue are prepared respectively, then both are successively transferred to a flexible release film and finally press-fit onto a base fabric, and subsequently, curing is achieved and the release film can then just be torn off. 1. A flexible wearable dry electrode , comprising a base fabric , a transfer glue layer and a nano-conductive layer , which are successively attached;wherein the transfer glue layer is mainly composed of the following components, by weight percentage: 50%˜90% of an elastic resin, 5%˜15% of a curing agent, and 5%˜35% of a filler; andthe nano-conductive layer is mainly composed of the following components, in parts by weight: 0.1˜20 parts of a conductive nanomaterial, 0.1˜30 parts of a dispersant, and 0.01˜5 parts of a binder.2. The flexible wearable dry electrode according to claim 1 , wherein the dispersant is one selected from the group consisting of polyethylene glycol claim 1 , polyvinyl alcohol claim 1 , polyvinyl pyrrolidone claim 1 , hydroxypropyl methyl cellulose claim 1 , hexadecyl trimethyl ammonium bromide claim 1 , sodium laurate claim 1 , sodium cinnamate claim 1 , sodium oleate claim 1 , sodium dodecyl benzenesulfonate claim 1 , sodium dodecyl sulfonate claim 1 , carboxymethyl cellulose acetate butyrate claim 1 , carboxymethyl cellulose claim 1 , Acacia gum ...

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14-09-2017 дата публикации

Compositions and methods for delivering an agent to a wound

Номер: US20170258967A1

The invention provides compositions featuring chitosan and polyethylene glycol and methods for using such compositions for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection. Advantageously, the chitosan-PEG compositions can be loaded with one or more antimicrobial agents, including hydrophobic agents, and can be tailored to the needs of particular patients at the point of care (e.g., in a surgical suite, clinic, physician's office, or other clinical setting).

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06-08-2020 дата публикации

SEPARATION FILM, CELLULOSE-BASED RESIN COMPOSITION, AND METHOD FOR PRODUCING SEPARATION FILM

Номер: US20200246759A1
Принадлежит: Toray Industries, Inc.

The problem to be solved by the present invention is to provide a separation film mainly comprising a cellulose-based resin having high permeability. The present invention pertains to a separation film containing a cellulose ester, wherein the separation film is provided with a bicontinuous structure comprising voids and phases containing the cellulose ester, and the width of the voids is 1 to 200 nm inclusive. 1. A separation membrane comprising a cellulose ester ,wherein the separation membrane comprises a co-continuous structure formed of phases containing the cellulose ester and voids, andeach of the voids has a width of 1 nm to 200 nm.2. The separation membrane according to claim 1 , having a membrane permeation flux at 50 kPa and 25° C. of 0.05 m/m/hr to 20 m/m/hr.3. The separation membrane according to claim 1 , having a thickness of 1 μm to 1000 μm.4. The separation membrane according to claim 1 , wherein the separation membrane is in a shape of a hollow fiber.5. The separation membrane according to claim 4 , wherein the hollow fiber has an outer diameter of 100 μm to 5000 μm.6. The separation membrane according to claim 1 , wherein the cellulose ester is at least one compound selected from the group consisting of cellulose acetate propionate and cellulose acetate butyrate.7. A resin composition comprising a co-continuous structure claim 1 ,wherein the co-continuous structure includes a first phase containing a cellulose ester and a second phase partially compatible with the first phase, andthe second phase has a width of 1 nm to 1000 nm.8. The resin composition according to claim 7 , wherein claim 7 , in a graph with horizontal axis for wavenumber and vertical axis for intensity claim 7 , which is obtained by Fourier transformation of a microscopic image photographed in a square visual field with each side having a length 10 times to 100 times the width of the second phase claim 7 , when a peak half width is set as (a) and a peak maximum wavenumber is set ...

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22-09-2016 дата публикации

STABLE POLYETHYLENE GLYCOL PARTICLE DISPERSIONS AND METHODS FOR FORMING THE STABLE DISPERSIONS

Номер: US20160272769A1
Автор: Holt Jason
Принадлежит:

Stable dispersions of solid polyethylene glycol particles are described in polyalkylene glycol liquids. The stable dispersions have an increased viscosity relative to the liquids without the suspended particles. The stable dispersions can be formed from a melt of the polyethylene glycol particles mixed within the liquid. 1. A dispersion comprising at room temperature a solvent and stably suspended polyethylene glycol particles wherein the solvent comprises liquid polyalkylene glycol , and having a particle concentration of at least about 0.01 weight percent.2. The dispersion of wherein the polyethylene glycol particles have an average molecular weight of 800 g/mole to about 50 claim 1 ,000 g/mole.3. The dispersion of wherein the polyethyene glycol particles have a visibly complex claim 1 , high surface area structure.4. The dispersion of wherein the liquid polyalkylene glycol comprises polyethylene glycol.5. The dispersion of wherein the liquid is polyethylene glycol.6. The dispersion of wherein the particle concentration is from about 0.2 weight percent to about 20 weight percent.7. The dispersion of wherein the particle concentration is from about 0.25 to about 12 weight percent.8. The dispersion of wherein dispersion is stable with no settling of particles without stirring for at least about 1 days.9. The dispersion of having a room temperature shear thickening viscosity.10. The dispersion of having a viscosity at a shear of 6 rpm with a Brookfield #1 LVT spindle of at least 20 cP.11. The dispersion of having a viscosity at a shear of 20 rpm with a Brookfield #2 rvt spindle of at least about 200 cP.1262. The dispersion of having a viscosity at a shear of rpm with a Brookfield #1 LVT spindle that is at least a factor of greater than the viscosity of the corresponding room temperature liquid without the dispersed particles.13. A method for forming a suspension of organic particles insoluble in polyalkylene glycol claim 1 , the method comprising blending organic ...

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28-10-2021 дата публикации

TWO-DIMENSIONAL NANOPOROUS COVALENT ORGANIC FRAMEWORK FOR SELECTIVE SEPARATION AND FILTRATION MEMBRANE FORMED THEREFROM

Номер: US20210331122A1
Принадлежит: UNIVERSITY OF WYOMING

A membrane filter is provided. The membrane filter including an ordered functional nanoporous material (OFNM) defining a layer and a membrane support. The layer having a two-dimensional structure and defining a plurality of pores and imparting to the membrane filter a permeance of at least 900 Lmhbarand a rejection of at least 60% as to a solvent containing a filterable species. 1. A membrane filter comprising:an ordered functional nanoporous material (OFNM) defining a layer, said layer having a two-dimensional structure and defining a plurality of pores; and{'sup': −2', '−1', '−1, 'a membrane support, said layer imparting to the membrane filter a permeance of at least 900 Lmhbarand a rejection of at least 60% as to a solvent containing a filterable species.'}2. The membrane filter of wherein said layer is configured to allow the solvent to pass through the plurality of pores and to prevent filterable species in the solvent from passing through the plurality of pores based on a size or charge of the filterable species.3. The membrane filter of wherein said layer has an ion conductivity configured to support an ion current.4. The membrane filter of wherein said layer repels negatively charged ions from crossing therethrough.5. The membrane filter of wherein the two-dimensional structure includes a plurality of interlined hexagonal structures.6. The membrane filter of wherein the hexagonal structures are symmetric.7. The membrane filter of wherein the two-dimensional structure is a crystalline structure.8. The membrane filter of wherein the crystalline structure is up to 300 nm.9. The membrane filter of wherein the filter is gravity fed.10. The membrane filter of wherein the membrane filter is formed of a two-dimensional covalent organic framework (COF) polymer.11. The membrane filter of wherein the COF is a carboxyl functionalized COF.12. The membrane filter of wherein the COF is tertiary amine functionalized COF.13. The membrane filter of configured for use with ...

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22-08-2019 дата публикации

FOAM COMPOSITIONS COMPRISING POLYLACTIC ACID POLYMER, POLYVINYL ACETATE POLYMER AND PLASTICIZER, ARTICLES, AND METHODS OF MAKING AND USING SAME

Номер: US20190256677A1
Принадлежит:

Foam compositions are provided including a polylactic acid polymer; second (e.g., polyvinyl acetate) polymer having a glass transition temperature (T) of at least 25° C.; and plasticizer. Also described are articles comprising the foam compositions, such as a sheet or hearing protection article. Methods of making and using the foam compositions are further described herein. 2. The foam composition of claim 1 , wherein the polylactic acid polymer comprises an amorphous polylactic acid polymer.3. The foam composition of claim 1 , wherein the polylactic acid polymer comprises a semicrystalline polylactic acid polymer.4. The foam composition of claim 1 , further comprising at least one nucleating agent selected from a cell nucleating agent claim 1 , a crystallization nucleating agent claim 1 , a cell stabilizer claim 1 , and a combination thereof.5. The foam composition of claim 4 , wherein the cell stabilizer comprises silica nanoparticles functionalized with a polyethylene glycol silane.6. The foam composition of claim 1 , further comprising a crosslinking agent.7. The foam composition of claim 1 , further comprising a crosslink catalyst comprising an alkyl or alkenyl ammonium claim 1 , phosphonium claim 1 , or imidizolium salt.9. The foam composition of claim 1 , wherein the composition does not exhibit plasticizer migration when aged at 80° C. for 24 hours.10. The foam composition of claim 1 , wherein the foam composition comprises a rough surface morphology.12. A foam sheet comprising the foam composition of .13. A hearing protection article comprising the foam composition of .14. A method of making a foam composition claim 1 , the method comprising:{'sub': 'g', 'a. compressing a mixture comprising a polylactic acid polymer; a second polymer having a Tof at least 25° C., wherein the second polymer comprises polyvinyl acetate; a plasticizer; and a blowing agent; and'}b. heating the compressed mixture, thereby forming the foam composition.15. The method of claim 14 , ...

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21-09-2017 дата публикации

METHODS FOR SURFACE MODIFICATION OF MATERIALS

Номер: US20170267815A1
Принадлежит:

The invention concerns methods and compositions for modifying a surface of a material by anchoring a surface modifying additive to a polymer matrix using an anchor molecule, wherein the surface modifying additive and the anchor molecule are both added to a melt phase of the polymer matrix.

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20-09-2018 дата публикации

PREPARATION METHOD OF SUPERABSORBENT POLYMER AND SUPERABSORBENT POLYMER PREPARED THEREBY

Номер: US20180265653A1
Принадлежит: LG CHEM, LTD.

Provided are a preparation method of a superabsorbent polymer, and a superabsorbent polymer prepared thereby. The preparation method of the superabsorbent polymer according to the present disclosure enables preparation of the superabsorbent polymer which is excellent in absorption properties such as centrifuge retention capacity and absorbency under pressure, and also has improved permeability. In addition, the preparation method exhibits excellent operability during the preparation (in particular, surface crosslinking of the polymer) and excellent productivity due to low production of coarse particles and fine particles. 2. The superabsorbent polymer of claim 1 , wherein the superabsorbent polymer has liquid permeability (SFC) of 10×10cm*s/g to 150×10cm*s/g claim 1 , centrifuge retention capacity (CRC) of 20 g/g to 40 g/g claim 1 , absorbency under pressure (AUP) of 15 g/g to 30 g/g claim 1 , and permeability dependent absorption under pressure (PDAUP) of 10 g/g to 25 g/g.3. The superabsorbent polymer of claim 1 , wherein the polycarboxylic acid-based copolymer is present on an amount of 0.001 to 5% by weight claim 1 , based on 100 parts by weight of the pulverized polymer.4. The superabsorbent polymer of claim 1 , wherein the polycarboxylic acid-based copolymer has a weight average molecular weight of 500 to 1 claim 1 ,000 claim 1 ,000 g/mol.5. The superabsorbent polymer of claim 1 , wherein the polycarboxylic acid-based copolymer is a random copolymer derived from methoxy polyethylene glycol monomethacrylate and (meth)acrylic acid. This application is a divisional of U.S. application Ser. No. 15/124,156, filed Sep. 7, 2016 which is a national phase entry under 35 U.S.C. § 371 of International Application No. PCT/KR2015/005956, filed Jun. 12, 2015, which claims priority from Korean Patent Application No. 10-2014-0072343, filed Jun. 13, 2014. The disclosures of which are incorporated herein by reference.The present disclosure relates to a preparation method of a ...

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29-08-2019 дата публикации

Polymer-Encapsulated Polyhemoglobin-Based Oxygen Carrier

Номер: US20190262793A1
Автор: Dorati Rossella, LING Jian
Принадлежит:

PEGylated polyhemoglobin nanocapsules are provided, wherein the nanocapsules each include a core including polyhemoglobin, a polymer shell encapsulating the core, a polydopamine layer on an exterior surface of the shell, and poly(ethylene glycol) adhered by the polydopamine to the shell. A method of forming PEGylated polyhemoglobin nanocapsules includes extracting hemoglobin from red blood cells. The method further includes polymerizing the hemoglobin to provide polyhemoglobin. The polyhemoglobin is then encapsulated in a plurality of polymer shells to form a plurality of polyhemoglobin nanocapsules. In addition, a polydopamine is deposited on an external surface of the polyhemoglobin nanocapsules. Poly(ethylene glycol) is then adhered to the polyhemoglobin nanocapsules with the polydopamine to provide a plurality of PEGylated polyhemoglobin nanocapsules. 1. A method of forming PEGylated polyhemoglobin nanocapsules , comprising:supplying polyhemoglobin;encapsulating said polyhemoglobin in a plurality of polymer shells to form a plurality of nanocapsules having a core containing polyhemoglobin;providing a polydopamine coating on said polymer shell; andadhering poly(ethylene glycol) to said polyhemoglobin nanocapsules with said polydopamine to provide a plurality of PEGylated polyhemoglobin nanocapsules wherein said poly(ethylene glycol) is oriented outwards from said nanocapsules.2. The method of claim 1 , wherein said polyhemoglobin is formed from hemoglobin extracted from bovine or human red blood cells.3. The method of claim 1 , wherein said polyhemoglobin is form from hemoglobin extracted from red blood cells by lysing said red blood cells using a hypotonic lysis buffer.4. The method of claim 1 , wherein said polyhemoglobin is formed by polymerizing hemoglobin with glutaraldehyde.5. The method of claim 1 , wherein said polyhemoglobin exhibits a number average molecular weight (Mn) in the range of 400 kDa to 1 claim 1 ,000 kDa.6. The method of claim 1 , wherein ...

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08-10-2015 дата публикации

PROCESS FOR THE PREPARATION OF HIERARCHICALLY MESO AND MACROPOROUS STRUCTURED MATERIALS

Номер: US20150284252A1
Принадлежит: CIC ENERGIGUNE

The present invention describes a hierarchical graphitized carbon foam comprising an interconnected macroporous structure with an ordered mesoporous wall structure, a process for its preparation, as well as to a process for the synthesis of a variety of bimodal porous organic polymer and/or inorganic metal oxide materials 1. A hierarchical graphitized carbon foam comprising an interconnected macroporous structure with an ordered mesoporous wall structure , further characterized in that the carbon foam has a surface area higher than 400 m/g.2. The carbon foam according to claim 1 , wherein the macropores have a diameter ranging from 50 μm to 1 mm.3. The carbon foam according to claim 1 , wherein the mesopores have a pore size ranging from 2 to 10 nm.4. A process for preparing a hierarchical graphitized carbon foam as defined in claim 1 , wherein said process comprises:a) forming a solution comprising a phenolic resin and a poly(alkylene oxide) compound;b) impregnating a polymeric foam with the solution obtained in step a);c) conducting a self-assembly of the phenolic resin and the poly(alkylene oxide) compound in the polymeric foam by a hydrothermal treatment;d) subjecting the product obtained in step c) to a heating process to thermally crosslink the phenolic resin;e) subjecting the product obtained in Step d) to a carbonization process to remove the poly(alkylene oxide) compound and the polymeric foam and to form a carbonized carbon foam;f) subjecting the carbonized carbon foam obtained in step e) to a catalytic graphitization.5. Process according to claim 4 , wherein the phenolic resin used in step a) is the product resulting from the reaction of a phenol claim 4 , or a substituted phenol claim 4 , with an aldehyde.6. Process according to claim 5 , wherein the substituted phenol is a polyhydric phenol selected from pyrocatechol claim 5 , resorcinol claim 5 , hydroquinone and phloroglucinol; a monoalkyl or polyalkyl substituted phenol selected from cresols and ...

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29-09-2016 дата публикации

SHOCK ABSORPTION MATERIAL

Номер: US20160280880A1
Принадлежит:

A composite material with an elastic modulus of less than 0.1 MPa at 100% elongation including a polymer matrix and a non-Newtonian fluid is provided. The composite material may be employed in shock and impact absorption applications to reduce initial and shockwave acceleration forces. Methods of forming the composite material and reducing acceleration forces in an impact utilizing the composite material are also provided. 1. A composite material comprising:a polymer foam matrix; anda non-Newtonian fluid impregnated in the polymer foam matrix,wherein the composite material has an elastic modulus of less than 0.1 MPa at 100% elongation.2. The composite material of claim 1 , wherein the polymer foam matrix has a density in the range of about 50 g/mto about 500 claim 1 ,000 g/m.3. The composite material of or claim 1 , wherein the polymer foam matrix comprises a material selected from the group consisting of elastomers claim 1 , polystyrene claim 1 , polyethylene claim 1 , polypropylene claim 1 , polyamide claim 1 , polyurethane claim 1 , ethylvinyl-acetate claim 1 , polyethylene oxide claim 1 , polyacrylate claim 1 , cellulose claim 1 , ethylene vinyl alcohol claim 1 , polybutylene claim 1 , polycaprolactone claim 1 , polycarbonate claim 1 , polyketone claim 1 , polyester claim 1 , polylactic acid claim 1 , polyvinyl chloride claim 1 , polyphenylene claim 1 , and copolymers thereof.4. The composite material of any of - claim 1 , wherein the non-Newtonian fluid is not covalently bonded to the polymer foam matrix.5. The composite material of any of - claim 1 , wherein the non-Newtonian fluid comprises at least one material selected from the group consisting of polydimethylsiloxane claim 1 , substituted polydimethylsiloxane claim 1 , 1% w/v polyethylene glycol in water claim 1 , 1% w/v polyacrylamide in water claim 1 , C8-silica particles in silicone oil claim 1 , silica particles in glycerol claim 1 , and tin oxide particles in water.6. The composite material of any of ...

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20-08-2020 дата публикации

Photo-coupled synergistically crosslinked hydrogel material and its composition, preparation method, use, product, and preparation kit

Номер: US20200262939A1

This invention provides a preparation, composition, product, and application of a photo-coupled synergistically crosslinked hydrogel material. The preparation includes dissolving Component A including a photosensitive polymer derivative having o-nitrobenzyl phototriggers and Component B including a polymer derivative having amine or alkene (double group) or sulfhydryl group in a biocompatible medium to obtain solution A and solution B, respectively; mixing the solution A and solution B homogeneously to obtain a hydrogel precursor solution; initiating photo-coupled synergistic crosslinking under an irradiation of a UV light to form the hydrogel. The irradiation causes the o-nitrobenzyl phototriggers to generate an aldehyde group/keto group or a nitroso group to initiate photo-coupled synergetic crosslinking. The photo-coupled synergistically crosslinked hydrogel has applications in tissue engineering, regenerative medicine, 3D printing and as a carrier of cell, protein or drug.

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05-09-2019 дата публикации

SEALANT FOAM COMPOSITIONS FOR LUNG APPLICATIONS

Номер: US20190269818A1
Принадлежит:

The present invention is directed to tissue sealant compositions comprising: a multi-arm reactive polyethylene glycol polymer having at least 3 electrophilic groups; albumin; a buffer; water; and entrained gas as bubbles; wherein concentration of albumin in a liquid component of the sealant is within range of 50-200 mg/ml; and wherein concentration of multi-arm PEG in said liquid component of the sealant is within range of 25-100 mg/mL. 2. The tissue sealant of claim 1 , wherein said gas is air claim 1 , nitrogen claim 1 , argon claim 1 , carbon dioxide claim 1 , or mixtures thereof.3. The tissue sealant of claim 1 , wherein said multi-arm PEG has molecular weight from about 5 kD to about 20 kD.4. The tissue sealant of claim 1 , wherein said multi-arm PEG comprises diester linkages.5. The tissue sealant of claim 1 , wherein said electrophilic groups are hydroxysuccinimide (NHS) or succinimidyl glutarate ester (SG).6. The tissue sealant of claim 1 , wherein said sealant comprises a foam and is bioresorbable.7. (canceled)8. The tissue sealant of claim 6 , wherein foam flowability is such that the foam requires at least 7 seconds to travel 6 inches on a 30% inclined panel.9. The tissue sealant of claim 6 , wherein E modulus of the cured foam in a cured state is above 8.5 kPa and below 110 kPa.10. The tissue sealant of claim 6 , wherein albumin and PEG-SG concentrations in mg/mL of liquid portion of the foam claim 6 , are selected so that an equation for E Modulus yields values from 8.5 kPa to 110 kPa:{'br': None, 'E Modulus (kPa)=−2.34−0.168Albumin+0.197PEG+0.000393Albumin{circumflex over (\u2003)}2−0.00462PEG{circumflex over (\u2003)}2+0.008318Albumin*PEG.'}11. A method of making the tissue sealant of claim 1 , comprising: mixing and foaming a composition comprising multi-arm PEG-SG claim 1 , albumin claim 1 , buffer claim 1 , water claim 1 , and gas.12. A method of using the tissue sealant of claim 1 , comprising:rapidly mixing and foaming a composition comprising ...

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05-09-2019 дата публикации

SEALANT FOAM COMPOSITIONS FOR LUNG APPLICATIONS

Номер: US20190269819A1
Принадлежит:

The present invention is directed to tissue sealant compositions comprising: a multi-arm reactive polyethylene glycol polymer having at least 3 electrophilic groups; albumin; a buffer; water; and entrained gas as bubbles; wherein concentration of albumin in a liquid component of the sealant is within range of 50-200 mg/ml; and wherein concentration of multi-arm PEG in said liquid component of the sealant is within range of 25-100 mg/mL and wherein PEG-SG portion is composed of a blend of 2 PEG-SG different in arm number or arm lengths. 2. The tissue sealant of claim 1 , wherein said gas is air claim 1 , nitrogen claim 1 , argon claim 1 , carbon dioxide claim 1 , or mixtures thereof.3. The tissue sealant of claim 1 , wherein said first multi-arm PEG component and said second multi-arm PEG component comprises di-ester linkages.4. The tissue sealant of claim 1 , wherein said sealant is a foam and is bioresorbable.5. (canceled)6. The tissue sealant of claim 1 , wherein foam flowability is such that the foam requires at least 7 seconds to travel 6 inches on a 30% inclined panel.7. The tissue sealant of claim 1 , wherein E modulus of the cured foam is above 8.5 kPa and below 110 kPa.8. A method of making the tissue sealant comprising: mixing and foaming a composition comprising a blend of multi-arm PEG-SGs claim 1 , albumin claim 1 , buffer claim 1 , water claim 1 , and gas according to .9. A method of using the tissue sealant of claim 1 , comprising:rapidly mixing and foaming a composition comprising multi-arm PEG-SG, albumin, buffer, water, and gas, forming a foam;immediately thereafter applying the foam onto a tissue;allowing the foam to cure on said tissue. The present invention relates generally to agents and materials for promoting tissue sealing and hemostasis, more particularly, to resorbable sealants with improved efficacy, particularly in the form of compressible foams, and to methods for manufacturing such compositions. The present invention is directed to ...

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05-10-2017 дата публикации

POROUS MEMBRANES AND ASSOCIATED SEPARATION MODULES AND METHODS

Номер: US20170282128A1
Принадлежит:

A porous membrane is made from a poly(phenylene ether) copolymer containing 10 to 40 mole percent repeat units derived from 2-methyl-6-phenylphenol and 60 to 90 mole percent repeat units derived from 2,6-dimethylphenol; and a block copolymer containing backbone or pendant blocks of poly(Calkylene oxide). The porous membrane is made by dissolving the poly(phenylene ether) copolymer in a water-miscible polar aprotic solvent to form a membrane-forming composition; and phase-inverting the membrane forming-composition in a first non-solvent composition to form the porous membrane. A method of making a hollow fiber by coextrusion through a spinneret having an annulus and a bore, includes coextruding the membrane-forming composition through the annulus, and a first non-solvent composition through the bore, into a second non-solvent composition to form the hollow fiber. 1. A porous membrane comprising:a poly(phenylene ether) copolymer consisting essentially of 10 to 40 mole percent repeat units derived from 2-methyl-6-phenylphenol and 60 to 90 mole percent repeat units derived from 2,6-dimethylphenol; and{'sub': '2-4', 'a block copolymer comprising a poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) block copolymer, a poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) block copolymer, a poly(Calkylene oxide)-poly(dimethylsiloxane) block copolymer, or a combination comprising at least one of the foregoing;'}wherein the weight average molecular weight of the poly(phenylene ether) copolymer is greater than or equal to 75,000 daltons and less than or equal to 500,000 daltons, measured by gel permeation chromatography against polystyrene standards.2. The porous membrane of claim 1 , wherein the poly(phenylene ether) copolymer has an intrinsic viscosity of 0.7 to 1.5 deciliters per gram claim 1 , measured in chloroform at 25° C.34-. (canceled)5. The porous membrane of claim 1 , comprising 30 to 70 weight percent of the poly(phenylene ether) copolymer ...

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06-10-2016 дата публикации

AMPHIPHILIC BLOCK COPOLYMERS AND INORGANIC NANOFILLERS TO ENHANCE PERFORMANCE OF THERMOSETTING POLYMERS

Номер: US20160289444A1
Принадлежит:

Curable compositions, cured compositions, and methods of forming the same, including an epoxy resin, a curing agent, an amphiphilic toughening agent, and an inorganic nanofiller, wherein the toughening agent forms a second phase having at least one dimension being on the nanometer scale. 125-. (canceled)26. A method of forming a composite , comprising:admixing an epoxy resin, a curing agent, an amphiphilic toughening agent, and an inorganic nanofiller to form a curable composition;curing the curable composition to form a composite;wherein the toughening agent forms a second phase having at least one dimension being on the nanometer scale.27. The method of claim 26 , wherein the admixing further comprises admixing a catalyst.28. The method of claim 26 , wherein the curing comprises heating the curable composition to a temperature of at least 100° C.29. The method of claim 26 , wherein the curing comprises two or more stages.30. The method of claim 26 , further comprising post-treating the composite by heating the composite to a temperature of at least 100° C.31. The method of claim 26 , further comprising applying the curable composition to a reinforcing material. 1. Field of the DisclosureEmbodiments disclosed herein relate generally to epoxy resins and epoxy resin compositions. More specifically, embodiments disclosed herein relate to curable compositions and cured compositions including an epoxy resin, an amphiphilic block copolymer toughening agent, and an inorganic nanofiller.2. BackgroundEpoxies resins are one of the most widely used engineering resins, and are well-known for their use in composites with high strength fibers. Epoxy resins form a glassy network, exhibit excellent resistance to corrosion and solvents, good adhesion, reasonably high glass transition temperatures, and adequate electrical properties. Unfortunately, crosslinked, glassy epoxy resins with relatively high glass transition temperatures (>100° C.) are brittle. The poor impact strength of ...

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05-10-2017 дата публикации

FLAME RETARDANT SLABSTOCK POLYURETHANE FOAM COMPOSITION

Номер: US20170283542A1
Принадлежит:

A flame retarded slabstock polyurethane foam composition including polyol and polyisocyanate as main materials, and an additive for forming a general polyurethane foam except for a flame retarded agent, in which the polyol may be polyether polyol and may include 10 to 45 wt % of polyether polyol (A) having a weight-average molecular weight of 2,000 to 5,000 g/mol and 55 to 90 wt % of polyether polyol (B) having a weight-average molecular weight of 600 to 1,500 g/mol, and an isocyanate index of the composition defined by Equation 1 may be in a range of 70 to 95, and Equation 1 may be Isocyanate index=mole of isocyanate group (NCO)/mole of hydroxyl group (OH)×100. 1. A flame retarded slabstock polyurethane foam composition , comprising: {'br': None, 'isocyanate index=amount in moles of isocyanate group (NCO)/amount in moles of hydroxyl group (OH)×100.'}, 'polyol and polyisocyanate as main materials, and an additive for forming a general polyurethane foam and not a flame retardant agent, wherein the polyol is polyether polyol and includes 10 to 45 wt % of polyether polyol A having a weight-average molecular weight of 2,000 to 5,000 g/mol and 55 to 90 wt % of polyether polyol B having a weight-average molecular weight of 600 to 1,500 g/mol, and an isocyanate index of the composition of a range of 70 to 95 as defined by the following equation2. The flame retarded slabstock polyurethane foam composition of claim 1 , comprising: 100 parts by weight of polyether polyol; 30 to 120 parts by weight of polyisocyanate; 0.01 to 2 parts by weight of an amine-based catalyst; 0.01 to 2 parts by weight of a silicon-based foam stabilizer; 1 to 5 parts by weight of a foaming agent; and 1 to 20 parts by weight of a cell opener.3. The flame retarded slabstock polyurethane foam composition of claim 1 , wherein the polyether polyol comprises bio polyether polyol induced from vegetable oil.4. The flame retarded slabstock polyurethane foam composition of claim 1 , wherein the polyisocyanate ...

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04-10-2018 дата публикации

SEPARATION FILM, CELLULOSE-BASED RESIN COMPOSITION, AND METHOD FOR PRODUCING SEPARATION FILM

Номер: US20180280893A1
Принадлежит: Toray Industries, Inc.

The problem to be solved by the present invention is to provide a separation film mainly comprising a cellulose-based resin having high permeability. The present invention pertains to a separation film containing a cellulose ester, wherein the separation film is provided with a bicontinuous structure comprising voids and phases containing the cellulose ester, and the width of the voids is 1 to 200 nm inclusive. 2. The separation membrane according to claim 1 , wherein claim 1 , in a graph with horizontal axis for wavenumber and vertical axis for intensity claim 1 , which is obtained by Fourier transformation of a microscopic image photographed in a square visual field with each side having a length 10 times to 100 times the width of each of the voids of the separation membrane claim 1 , when a peak half width is set as (a) and a peak maximum wavenumber is set as (b) in the graph claim 1 , a region of 0<(a)/(b)<1.5 is included in the separation membrane.3. The separation membrane according to claim 1 , having a membrane permeation flux at 50 kPa and 25° C. of 0.05 m/m/hr to 20 m/m/hr.4. The separation membrane according to claim 1 , having a thickness of 1 μm to 1000 μm.5. The separation membrane according to claim 1 , wherein the separation membrane is in a shape of a hollow fiber.6. The separation membrane according to claim 5 , wherein the hollow fiber has an outer diameter of 100 μm to 5000 μm.7. The separation membrane according to claim 1 , wherein the cellulose ester is at least one compound selected from the group consisting of cellulose acetate propionate and cellulose acetate butyrate.8. A resin composition comprising a co-continuous structure claim 1 ,wherein the co-continuous structure includes a first phase containing a cellulose ester and a second phase partially compatible with the first phase, andthe second phase has a width of 1 nm to 1000 nm.9. The resin composition according to claim 8 , wherein claim 8 , in a graph with horizontal axis for ...

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27-08-2020 дата публикации

Hydrogels Based On Functionalized Polysaccharides

Номер: US20200270402A1

The present invention relates to functionalized hydrogel networks grafted with at least one moiety for use in numerous fields, from cosmetics to surgery and medicine.

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13-10-2016 дата публикации

COMPOSITES FOR PROTECTING SIGNAL TRANSMITTERS/RECEIVERS

Номер: US20160297941A1
Принадлежит:

Embodiments of the present disclosure are directed to a composition and composite for protecting a transmission/reception device. The composite can include a reinforcing material and a cured epoxy composition impregnating the reinforcing material. The cured epoxy composition can contain reaction constituents including less than 50% stoichiometric amount of an anhydride curing agent to an epoxy resin. The composite can exhibit synergistic improvements in mechanical strength, weatherability, and signal transmission properties. 1. A composite for protecting a transmission/reception device , the composite comprising:a. a reinforcing material; andb. a cured epoxy composition impregnating the reinforcing material,c. wherein the cured epoxy composition has a cured epoxy composition impregnating the reinforcing material, wherein the epoxy composition comprises an epoxy resin, and a polyphenyl ether polymer or copolymer having a number average molecular weight in a range of from 300 to 14,000.2. The composite of claim 1 , wherein the cured epoxy composition has a dielectric constant of less than 3.0 at 10 giga hertz claim 1 , and a water absorption of less than 2.0%.3. The composite of claim 1 , wherein the cured epoxy composition comprises a polyphenylene ether or polyphenylene ether copolymer having a number average molecular weight of no greater than 10 claim 1 ,000.4. The composite of claim 1 , wherein the cured epoxy composition comprises a polyphenylene ether or polyphenylene ether copolymer having a number average molecular weight of no greater than 5 claim 1 ,000.5. The composite of claim 1 , wherein the cured epoxy composition comprises a polyphenylene ether or polyphenylene ether copolymer having a terminal group which is covalently bonded with the epoxy resin.6. The composite of claim 1 , wherein the cured epoxy composition comprises a polyphenylene ether or polyphenylene ether copolymer having a terminal group which is not covalently bonded with the epoxy resin.7 ...

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20-10-2016 дата публикации

Easily-plated PC/ABS Alloy and Its Preparation Method

Номер: US20160304713A1
Принадлежит:

The present invention relates to an easily-plated PC/ABS alloy and its preparation method. The PC/ABS alloy includes following components: 30-70 parts by weight (pbw) of PC resin, 15-65 pbw of ABS resin, 5-10 pbw of PEO resin, 0.1-1 pbw of antioxidant, and 0.1-1 pbw of lubricant. For preparation, blending the PC resin, ABS resin, PEO resin, antioxidant and lubricant in a mixer; and putting a mixture in a twin-screw extruder for granulation, thus producing easily-plated PC/ABS alloy. The method is simple and practicable. PEO resin makes PC/ABS surface have the property of hydrophilicity, which makes the etching solution easier to wet the surface when under etching, so that the etching becomes much easier. The binding force of hydrophilic group on the surface of PEO to the metal is strong. The binding force of PC/ABS alloy material is improved due to the combination between the chemical bond and physical force. 2. The easily-plated PC/ABS alloy claim 1 , as recited in claim 1 , wherein the PC resin has a relative molecular mass of 17000-30000 g/mol claim 1 , and a glass transition temperature of 140-150° C.3. The easily-plated PC/ABS alloy claim 1 , as recited in claim 1 , wherein the PC resin is synthesized through phosgenation.4. The easily-plated PC/ABS alloy claim 1 , as recited in claim 1 , wherein the ABS resin is graft copolymer composed of acrylonitrile-butadiene-styrene; a relative molecular mass of the ABS resin is 100000-180000 g/mol claim 1 , of which a weight percentage of butadiene is 30-55% claim 1 , a weight percentage of acrylonitrile is 15-32% claim 1 , and a weight percentage of styrene is 30-60%.5. The easily-plated PC/ABS alloy claim 1 , as recited in claim 1 , wherein a relative molecular mass of the PEO resin is 10000-20000.6. The easily-plated PC/ABS alloy claim 1 , as recited in claim 1 , wherein the antioxidant is selected from a group consisting of triethylene glycol bis [β-(3-tert-butyl-4-hytroxy-5-methylpheny) propionate] claim 1 , ...

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26-09-2019 дата публикации

COMPOSITION FOR FORMING REVERSE OSMOSIS MEMBRANE PROTECTION LAYER, METHOD FOR PREPARING REVERSE OSMOSIS MEMBRANE USING SAME, REVERSE OSMOSIS MEMBRANE, AND WATER TREATMENT MODULE

Номер: US20190291058A1
Принадлежит: LG CHEM, LTD.

The present specification provides a composition comprising a material of Chemical Formula 1: 2. The composition for forming a reverse osmosis membrane protective layer of claim 1 , wherein R1 and R2 are hydrogen.3. The composition for forming a reverse osmosis membrane protective layer of claim 1 , further comprising one or more of a hydrophilic polymer and a crosslinking agent.4. The composition for forming a reverse osmosis membrane protective layer of claim 1 , wherein the material is present in an amount from 0.3% by weight to 0.5% by weight based on a total weight of the composition for forming a reverse osmosis membrane protective layer.5. The composition for forming a reverse osmosis membrane protective layer of claim 3 , wherein the hydrophilic polymer is polyvinyl alcohol (PVA) claim 3 , and the crosslinking agent is glutaraldehyde (GA).6. The composition for forming a reverse osmosis membrane protective layer of claim 3 , wherein the hydrophilic polymer is present in an amount from 0.1% by weight to 10% by weight based on a total weight of the composition for forming a reverse osmosis membrane protective layer.7. The composition for forming a reverse osmosis membrane protective layer of claim 3 , wherein the crosslinking agent is present in an amount from 0.01% by weight to 10% by weight based on a total weight of the composition for forming a reverse osmosis membrane protective layer.8. A method for preparing a reverse osmosis membrane comprising:forming a polyamide active layer on a porous support; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'forming a protective layer on the polyamide active layer using the composition for forming a reverse osmosis membrane protective layer of .'}10. The reverse osmosis membrane of claim 9 , wherein the material is present in an amount from 5% by weight to 20% by weight based on a weight of the protective layer.11. The reverse osmosis membrane of claim 9 , which has elastic modulus (Young's modulus) of 2 GPa ...

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