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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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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 14475. Отображено 100.
26-01-2012 дата публикации

Methods of embedding foam with additives

Номер: US20120022178A1
Автор: Glen Alan Bailey, John Edward Condon, Michael McCluskey
Принадлежит: DIVERSIFIED GLOBAL TECHNOLOGIES LLC

The invention relates to a various methods of adding a liquid additive to a foam whereby the location of the additive within the foam can be precisely controlled. It also describes embodiments of a foam wherein the additive has been localized at particular areas of the foam.

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Номер записи: 1
23-02-2012 дата публикации

Phylon Processes of Making Foam Articles Comprising Ethylene/alpha-Olefins Block Interpolymers

Номер: US20120046373A1
Автор: Bee T. Low, Stephen Yausang Cheng
Принадлежит: Individual

Methods of making a foam article comprise the steps of compressing a foam at an elevated temperature in a mold for shaping the foam; and cooling the mold to a temperature greater than room temperature, wherein the foam comprises at least one ethylene/α-olefin block interpolymer. The foam may further comprise an ethylene vinyl acetate copolymer and an additive such as a filler or a crosslinking agent. The ethylene/α-olefin block interpolymers are a multi-block copolymer comprising at least one soft block and at least one hard block.

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Номер записи: 2
12-04-2012 дата публикации

Antimicrobial foam

Номер: US20120087966A1
Автор: Jan Frances HAVILAND
Принадлежит: OBE Goods LLC

A resilient foam material having an active antimicrobial bound to, incorporated within, and projecting from its surface is provided for incapacitating or destroying microbes. The antimicrobial has an atomic structure that is capable of mechanically piercing or lysing a microbe thereby incapacitating or destroying the microbe. The resilient antimicrobial foam material may be manufactured into a resilient antimicrobial foam product for drawing across a surface and mechanically incapacitating or destroying microbes on the surface. The resilient antimicrobial foam material may be manufactured into a membrane for providing a sterile barrier for a surface. The resilient antimicrobial foam material is manufactured by combining the antimicrobial with a foam polymer material, heating the foam polymer material under pressure to a temperate that does not deactivate the antimicrobial, incorporating a blowing agent, cooling the material, and extruding the material.

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Номер записи: 3
19-04-2012 дата публикации

Porous polyurea material and methods for preparing the same

Номер: US20120095123A1
Автор: Jae-Sung Bae, Ji-Woong Park, Su-Young Moon
Принадлежит: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY

The present invention relates to a porous polyurea material and a method for preparing the same. The porous polyurea material may be prepared by polymerization and crosslinking of tetra(4-aminophenyl)methane with a monomer two to four isocyanate (—NCO) groups. The method includes: mixing an organic solution of tetra(4-aminophenyl)methane with an organic solution of a monomer having two to four isocyanate groups; reacting the mixed solution under a nitrogen atmosphere; and drying a semi-solid or solid material formed by gelation of the reaction solution, or adding the reaction solution to a non-solvent before gelation of the reaction solution to form a precipitate, followed by drying, or applying the reaction solution to a substrate before gelation of the reaction solution, followed by drying. According to the present invention, the introduction of the monomer having a tetrahedral structure can impart good chemical resistance, heat resistance and durability to the porous polyurea material.

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Номер записи: 4
24-05-2012 дата публикации

Crosslinked Flame Retardant Thermoplastic Elastomer Gels

Номер: US20120129962A1
Автор: Mark W. Ellsworth, Michael A. Oar, Miguel A. Morales
Принадлежит: Tyco Electronics Corp

Crosslinked flame retardant thermoplastic elastomer gels are provided. The crosslinked flame retardant thermoplastic elastomer gels comprise a char catalyst, a char former, a maleic anhydride-modified styrene ethylene/butylene styrene polymer, and a softener oil. Methods are provided of making crosslinked flame retardant thermoplastic elastomer gels.

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Номер записи: 5
31-05-2012 дата публикации

Expandable vinyl aromatic polymers and process for the preparation thereof

Номер: US20120132845A1
Автор: Jose M. Sosa, Michel Duc, Philippe Lodefier, Stephane Nowe
Принадлежит: Total Petrochemicals Research Feluy SA

The present invention is an expandable vinyl aromatic polymer which comprises: a) a matrix of a branched aromatic ionomer, b) 1-10% by weight calculated with respect to the polymer (a), of an expanding agent englobed in the polymeric matrix, c) 0-20% by weight, calculated with respect to the polymer (a), of a filler homogeneously distributed in the polymeric matrix, in which, the branched aromatic ionomer comprises the product of co-polymerizing a first monomer comprising an aromatic moiety and an unsaturated alkyl moiety and a second monomer comprising an ionic moiety and at least two unsaturated moieties, wherein the ionic moiety has at least two ionizable groups, a cationic group that ionizes to form cations and an anionic group that ionizes to form anions, and wherein the cationic group is polyvalent and one capable of forming bridges to other molecules. The present invention also relates to the use of the expandable vinyl aromatic polymer to make expanded articles, in particular insulation boards.

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Номер записи: 6
31-05-2012 дата публикации

Modified hybrid silica aerogels

Номер: US20120136079A1
Автор: Decio Coutinho, Kiranmayi Deshpande, Wendell E. Rhine
Принадлежит: Aspen Aerogels Inc

Disclosed and claimed herein are hybrid silica aerogels containing non-polymeric, functional organic materials covalently bonded at one or both ends to the silica network of the aerogels through a C—Si bond between a carbon atom of the organic material and a silicon atom of the aerogel network. Methods of their preparation are also disclosed.

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Номер записи: 7
07-06-2012 дата публикации

Process for texturing materials

Номер: US20120142798A1
Автор: Alexei Goraltchouk, Jordan M. Thompson
Принадлежит: Allergan Inc

Provided are methods for making textured implantable materials made from two part RTV silicone foams and having a desired color or tone without the need for dyes or colorants.

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Номер записи: 8
28-06-2012 дата публикации

Polyvinyl-Amine Acid Gas Adsorption-Desorption Polymers, Processes for Preparing Same, and Uses Thereof

Номер: US20120164045A1
Автор: David C. Calabro, Dennis G. Peiffer, Mobae Afeworki, Quanchang Li
Принадлежит: ExxonMobil Research and Engineering Co

This disclosure involves an adsorption-desorption material, e.g., crosslinked polyvinyl-amine material having an M w from about 500 to about 1×10 6 , total pore volume from about 0.2 cc/g to about 2.0 cc/g, and a CO 2 adsorption capacity of at least about 0.2 millimoles per gram of crosslinked material, and/or linear polyvinyl-amine material having an M w from about 160 to about 1×10 6 , total pore volume from about 0.2 cc/g to about 2.0 cc/g, and a CO 2 adsorption capacity of at least about 0.2 millimoles per gram of linear material. This disclosure also involves processes for preparing the crosslinked polyvinyl-amine materials and linear polyvinyl-amine materials, as well as selective removal of CO 2 and/or other acid gases from a gaseous stream using the polyvinyl-amine materials.

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Номер записи: 9
05-07-2012 дата публикации

Flame retardant system

Номер: US20120172467A1
Автор: Christoph Fleckenstein, Ciesielski Michael, Geert Janssens, Hartmut Denecke, Ingo Bellin, Jochen Wagner, Klaus Hahn, Klemens Massonne, Manfred DÖRING, Maximilian Hofmann, Patrick Spies, Peter Deglmann, Rainer Ostermann, Sabine Fuchs
Принадлежит: BASF SE

The invention relates to a flame retardant comprising a) at least one sulfur compound of the formula (I) b) at least one halogen-free organophosphorus compound with phosphorus content in the range from 0.5 to 40% by weight, based on the phosphorus compound.

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Номер записи: 10
12-07-2012 дата публикации

High melt strength polyesters for foam applications

Номер: US20120178837A1
Автор: Rodolfo Agustin Flores, Sanjay Mehta
Принадлежит: Individual

The present invention relates to a branched polyethylene terephthalate-co-isophthalate for use in the manufacture of foamed articles. The branched polyethylene terephthalate-co-isophthalate can be characterized by a composition comprising i) a polyethylene terephthalate-co-isophthalate comprising from about 5 to about 15 weight % of an isophthalic acid, and ii) a branching agent comonomer, wherein the branching agent comonomer is a polyhydric alcohol having functionality of 3 or more and the polyhydric alcohol is present in an amount of from 0.005 to about 0.01 equivalents per mole of total diacids. Other embodiments of the present invention include foamed articles produced from these compositions and processes to produce these compositions and the foamed articles.

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Номер записи: 11
09-08-2012 дата публикации

Microporous membranes, methods for making such membranes, and the use of such membranes as battery separator film

Номер: US20120202044A1
Автор: Koichi Kono, Patrick Brant, Richard V. Gebben
Принадлежит: Toray Tonen Speciality Separator GK

The invention relates to microporous membranes having one or more layers comprising polymer and inorganic molecules. The invention also relates to methods for producing these membranes, and the use of these membranes as battery separator film.

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Номер записи: 12
09-08-2012 дата публикации

Foaming agent for plastics

Номер: US20120202902A1
Автор: David Kümmet, Hendrik Wermter, Rainer Schnee, Rüdiger WISSEMBORSKI, Thomas Futterer
Принадлежит: Chemische Fabrik Budenhiem KG

A process for the production of foamed plastic parts, in which a blowing agent composition is introduced into a plastic matrix and causes pore formation in the plastic matrix by releasing at least carbon dioxide gas from the blowing agent composition, wherein the blowing agent composition contains at least one carbon dioxide carrier selected from carbonates, hydrogen carbonates and carbamates of alkali metals, alkaline earth metals, aluminum, transition metals and/or ammonium, and at least one acid carrier.

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Номер записи: 13
06-12-2012 дата публикации

Porous, low density nanoclay composite

Номер: US20120309245A1
Автор: Darin L. Dotson, Hao Zhou, Philip T. Wilson, Qi Liao, Walter A. Scrivens
Принадлежит: Individual

Disclosed are porous, low density nanoclay composites that exhibit highly homogeneous microcellular morphology and methods for forming the nanocomposites. The nanocomposites include a three-dimensional matrix having a non-lamellar, generally isotropic cellular structure with little or no macroscopic pores. The nanocomposites also include a gel that may be a noncovalently cross-linked, thermoreversible gel. The nanocomposites may include a binder and/or fibrous reinforcement materials. The nanocomposites may be formed according to a freeze-drying process in which ice crystal growth is controlled to prevent formation of macroscopic pores in the composite materials.

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Номер записи: 14
17-01-2013 дата публикации

Fire resistant foam insulation compositions

Номер: US20130015389A1
Автор: Francisco Jose Torres-Aranda, JR.
Принадлежит: Individual

This invention relates to polyurethane foam insulation materials comprising cenospheres, a coal combustion waste by-product, a poly-isocyanate and petroleum and/or vegetable based polyols and/or post-industrial or post-consumer recycled polyester to produce polymeric foam insulation products useful in building materials and component products. The percentage of industrial waste product, recycled materials and sustainable vegetable based components used in the formulations support make this a “green” composition.

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Номер записи: 15
31-01-2013 дата публикации

Deformable, rigid polystyrene foam board

Номер: US20130030069A1
Автор: Bharat Patel, Mark E. Polasky, Raymond M. Breindel, Roland R. Loh, Yadollah Delaviz
Принадлежит: OWENS CORNING INTELLECTUAL CAPITAL LLC

Provided are methods for producing a high strength, but easily deformed, polystyrene foam board that can endure repeated deformations from its original configuration into more complex curved shapes without damaging the board integrity or substantially reducing its structural strength. Also provided are rigid polystyrene foam boards produced by this method that exhibit improved bending and impact resistance while substantially retaining or improving other properties, for example, the thermal dimensional stability and fire resistance, exhibited by corresponding conventional XPS foam boards. The foamable compositions may incorporate one or more of a variety of polymer processing aids for the purpose of altering the performance of the final foam products, thereby allowing the properties of the final foam product to be customized to some degree.

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Номер записи: 16
14-03-2013 дата публикации

Biodegradable pellets foamed by irradiation

Номер: US20130065055A1
Автор: Catia Bastioli, Daniele Turati, Matteo Nicolini, Roberto Lombi
Принадлежит: Novamont SpA

This invention relates to biodegradable starch-based pellets which foamable by irradiation, which are particularly suitable for the manufacture of foam articles, characterised in that they have a porous structure with a low porous external skin. This invention also relates to foam articles obtained from these.

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Номер записи: 17
28-03-2013 дата публикации

Method for producing polycarbonate resin foam molded article

Номер: US20130075944A1
Автор: Kazunobu Sato, Masahiro Gomibuchi, Tomoo Tokiwa
Принадлежит: JSP Corp

The present invention provides a foamed molded article production method that can produce polycarbonate resin foamed blow-molded articles, etc. Which are good over a wide range of densities. The present invention is a method for producing a foamed molded article including extruding a foamable molten resin, formed by kneading a polycarbonate resin, a polyester resin in an amount of 5 to 100 parts by weight per 100 parts by weight of the polycarbonate resin and a foaming agent, from a die to obtain a foamed parison, and molding the foamed parison in a softened state in a mold. The polyester resin is a polyester copolymer containing diol component units, 10 to 80 mol % of which are glycol component units each having a cyclic ether structure, and dicarboxylic acid component units.

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Номер записи: 18
02-05-2013 дата публикации

Methods and compositions for textile layers and coatings

Номер: US20130109773A1
Автор: Etienne Schacht, Geert HEBBRECHT, Jan Laperre, Jorg Schelfhout, Myriam Vanneste, Peter Dubruel
Принадлежит: Universiteit Gent, Wetenschappelijk en Technisch Centrum van de Belgische Textiel

A method for preparing a solid composite material comprising a structural polymer matrix and a thermo-responsive hydrogel involves forming a substantially homogeneous blend of a cross-linkable compound and monomer, oligomer or polymer particles in a blended aqueous liquid, inducing the cross-linkable compound to cross-link to form the thermo-responsive hydrogel and forming the structural polymer matrix from the structural polymer by a further induction means.

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Номер записи: 19
02-05-2013 дата публикации

Silk fibroin porous material and method for producing same

Номер: US20130109836A1
Автор: Kazuo Kusaki, Kazutoshi Kobayashi, Naosuke Sumi, Tomoko Machida
Принадлежит: Hitachi Chemical Co Ltd

By a silk fibroin porous material containing silk fibroin and an amino acid and a method for producing a silk fibroin porous material including freezing a fibroin solution having an amino acid added to a fibroin aqueous solution and subsequently thawing the solution to obtain a porous material, a porous material which does not contain a solvent and which is high in safety and a method for producing the same are provided.

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Номер записи: 20
09-05-2013 дата публикации

Composition for porous plastics for intake housings

Номер: US20130116353A1
Автор: Hee-Sok Chang, Je Hui Jun, Young Hak Jang
Принадлежит: Hyundai Motor Co, KOPLA CO Ltd

Disclosed is a porous plastic resin composition including a polypropylene-based resin, a polyamide-based resin, or an alloy resin made by alloying the two resins to each other with a compatibilizer, reinforced with an inorganic filler or a short glass fiber, and further including a porous inorganic filler and a special inorganic low blowing agent. When the disclosed porous plastic resin composition is used to make an intake housing part, it reduces the weight and cost of an automobile intake housing part.

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Номер записи: 21
20-06-2013 дата публикации

Expanded polyolefin containing powdered activated carbon

Номер: US20130158141A1
Автор: Nancy Laeveren, Pierre Van Ravestyn
Принадлежит: Kaneka Belgium NV

A pre-expanded polyolefin particle containing powdered activated carbon (PAC) and a pre-expanded polyolefin particle containing PAC and a sterically hindered amine ether flame retardant, as well as processes for preparing pre-expanded polyolefin particles. A process for producing the pre-expanded polyolefin includes providing polyolefin polymer granules containing powdered activated carbon; impregnating the polyolefin polymer granules with a volatile blowing agent in an aqueous suspension at a pressure of 5 to 50 bar and at temperatures of 100 to 170° C.; and decompression to atmospheric pressure.

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Номер записи: 22
04-07-2013 дата публикации

Conductive polymer, synthesis method thereof, and electroactive electrode covered with said conductive polymer

Номер: US20130171338A1
Автор: Dongyuan Zhai, Hao Qiu, Lijia Pan, Yi Shi
Принадлежит: NANJING UNIVERSITY

The present invention provides a conducting polymer, a synthesis method thereof, and an electroactive electrode covered with the said conducting polymer. The conducting polymer is synthesized as follows: use the polybasic acid as dopant and crosslinking agent, and polymerize monomers into conducting polymer hydrogel. The monomers are selected one or more from pyrrole or its derivatives, thiophene or its derivatives, aniline or its derivatives. The acid group of the polybasic acid contains phosphate or polybasic acid which contains at least two substituents per molecule selected from sulfate, nitrate or carboxylic in which the molecular weight of at least one acid group is no more than 800. The mole ratio of the acid group in polybasic acid to monomers of the conducting polymer is 1:12-12:1. The preparation applied in the invention is simple, and need not to import any impurity. The conducting polymer hydrogel has high ionic conductivity, super hydrophilicity, and good biocompatibility.

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Номер записи: 23
08-08-2013 дата публикации

Polymer Composite Foams

Номер: US20130203878A1
Автор: Jose-Luis Feijoo, Juan-Antonio Igualada
Принадлежит: Ferro Corp

Foamed polymeric compositions containing clay nucleating agents are described. The clays are preferably sepioiite, palygorskite/attapulgite, or combinations thereof. Also described are processes for forming the foamed compositions. The resulting products find particular application as insulation and packaging materials.

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Номер записи: 24
15-08-2013 дата публикации

Expandable Functional TFE Copolymer Fine Powder, the Expandable Functional Produdcts Obtained Therefrom and Reaction of the Expanded Products

Номер: US20130210944A1
Автор: Jack J. Hegenbarth, Ping Xu, Xin Kang Chen
Принадлежит: WL Gore and Associates Inc

A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion.

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Номер записи: 25
22-08-2013 дата публикации

Cryogels of pva-boronic acid containing co-polymers for cell culture

Номер: US20130217127A1
Автор: ASHOK KUMAR
Принадлежит: INDIAN INSTITUTE OF TECHNOLOGY KANPUR

A cryogel contains a polyol and a co-polymer of Formula (I).

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Номер записи: 26
14-11-2013 дата публикации

Method of forming polymeric foam and related foam articles

Номер: US20130303645A1
Автор: Jere R. Anderson, Mark E. LINDENFELZER, Samuel Edward Dix
Принадлежит: MuCell Extrusion LLC

Methods of forming polymeric foams are provided. The methods may involve co-extruding a foam layer along with one or more skin layers. In some embodiments, the skin layer(s) may be removed (e.g., in a peeling operation); while, in other embodiments, the skin layer(s) may form part of the final article. The methods are particularly well suited for producing polymeric foams from polymeric materials that are considered to be difficult to foam by those of skill in the art.

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Номер записи: 27
05-12-2013 дата публикации

Resin foam and process for producing the same

Номер: US20130324629A1
Автор: Hironori Yasuda, Kei Yoshida, Mie Ota, Mitsuhiro Kanada, Takayuki Yamamoto, Yoshinori Kouno, Yuko Kandori
Принадлежит: Nitto Denko Corp

Provided is a resin foam which has satisfactory strain recovery, is particularly resistant to shrinkage of its cell structure caused by the resinous restitutive force at high temperatures, and exhibits superior high-temperature strain recovery. The resin foam according to the present invention is obtained from a resin composition including an elastomer and an active-energy-ray-curable compound. The resin composition gives an unfoamed measurement sample having a glass transition temperature of 30° C. or lower and a storage elastic modulus (E′) at 20° C. of 1.0×10 7 Pa or more, each determined by a dynamic viscoelastic measurement.

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Номер записи: 28
27-03-2014 дата публикации

Suspended nutrition composition and manufacturing method thereof

Номер: US20140083148A1
Автор: Che-Wei Chang, Chou-Chiang KUO, Tso-Hsuan Yeh
Принадлежит: Chunghwa Picture Tubes Ltd

A suspended nutrition composition includes a foamed material, a colloid layer and a nutrient. The foamed material having a plurality of pores includes a starch, a biodegradable polyester and a plasticizer. The pores are formed by bubbles produced from a physical foaming agent. The colloid layer covers a surface of the foamed material. The nutrient is dispersed in the foamed material.

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Номер записи: 29
27-03-2014 дата публикации

Crosslinked organic porous particles

Номер: US20140087188A1
Автор: Mridula Nair
Принадлежит: Individual

Crosslinked organic porous particles are non-swellable in propyl acetate and have a crosslinked organic solid phase and discrete pores dispersed within the crosslinked organic solid phase, which discrete pores are isolated from each other. The discrete pores have an average size greater than or equal to 0.1 μm and the crosslinked organic porous particles have a mode particle size of at least 3 μm and up to and including 100 μm. The discrete pores can contain a marker material.

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Номер записи: 30
27-03-2014 дата публикации

Thermally foamable resin composition, thermally foamable resin sheet, foam, and production method thereof

Номер: US20140088211A1
Автор: Takehiro Ui, Yoshiaki Mitsuoka, Youhei Hayashi
Принадлежит: Nitto Denko Corp

A thermally foamable resin composition includes a base resin, foamable resin particles, and a cross-linking agent, wherein each of the foamable resin particles contains a solid resin and a thermally expandable substance contained in the solid resin.

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Номер записи: 31
27-03-2014 дата публикации

Propylene-based copolymer, propylene-based copolymer composition, molded product thereof and foamed product thereof, and production process therefor

Номер: US20140088214A1
Автор: Kazuyoshi Kaneko, Kotaro Ichino, Kyoko Kobayashi, Masahiko Okamoto, Mayumi Yasuda, Tetsuji Kasai
Принадлежит: Mitsui Chemicals Inc

To provide a propylene-based copolymer and a propylene-based copolymer composition, each of which has a high melt tension because it has a long-chain branched structure, exhibits excellent molding processability during molding, such as inflation molding, extrusion molding, blow molding, injection molding or vacuum forming, and is capable of favorably providing a foamed product having an excellent expansion ratio and excellent cell uniformity in the foaming stage. The propylene-based copolymer (A) of the present invention comprises 50 to 95% by mol of constituent units [i] derived from propylene, 4.9 to 49.9% by mol of constituent units [ii] derived from an α-olefin of 2 to 10 carbon atoms other than propylene and 0.1 to 10% by mol of constituent units [iii] derived from a non-conjugated polyene (with the proviso that the total amount of the constituent units [i], [ii] and [iii] is 100% by mol), and is characterized by satisfying specific requirements (a) and (c).

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Номер записи: 32
03-04-2014 дата публикации

Electret sheet

Номер: US20140091249A1
Автор: Kazuho Uchida, Takazumi Okabayashi, Yoshiro Tajitsu
Принадлежит: KANSAI UNIVERSITY, Sekisui Chemical Co Ltd

Provided is an electret having high piezoelectric properties. An electret sheet of the invention is characterized in that it comprises a synthetic resin sheet is electrified by injecting electric charges thereinto, that the synthetic resin sheet comprises two types of synthetic resins incompatible with each other, and that these synthetic resins form a phase separated structure and are cross-linked through a polyfunctional monomer. Therefore, positive and negative charges in an apparently polarized state are present in the interfacial portions between the two types of synthetic resins incompatible with each other. By applying an external force to the electret sheet to deform it, the relative positions of these positive and negative charges are changed, and these changes cause a favorable electrical response. Therefore, the electret sheet has high piezoelectric properties.

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Номер записи: 33
06-01-2022 дата публикации

Foams based on thermoplastic polyurethanes

Номер: US20220002512A1
Автор: Frank Braun, Frank Prissok
Принадлежит: BASF SE

Molded parts for automobile interiors can be made from expanded thermoplastic polyurethane beads. Processes can be used to produce the molded parts from thermoplastic polyurethane.

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Номер записи: 34
06-01-2022 дата публикации

Polymer Composition and Membranes Made Therefrom With Improved Mechanical Strength

Номер: US20220002520A1
Автор: Li Man Cheng, Ohm Christian, Tao Fangfang
Принадлежит:

A polymer composition for producing gel extruded articles is described. The polymer composition contains polyethylene particles combined with a plasticizer and one or more strength enhancing additives. Polymer articles made in accordance with the present disclosure have enhanced strength properties. In one embodiment, the polymer composition is used to form a porous membrane for use as a separator in electronic devices. 1. A polymer composition for producing gel extruded articles comprising:a plasticizer;high density polyethylene particles; anda strength enhancing agent that influences the crystalline structure of the high density polyethylene particles, the strength enhancing agent comprising a metal salt of a carboxylic acid, a metal salt of a phosphate, an inorganic filler or mixtures thereof, the strength enhancing agent being present in the polymer composition in an amount sufficient for a membrane made from the polymer composition to have an increase in tensile strength in at least one direction or an increase in puncture strength of greater than about 2%.2. A polymer composition as defined in claim 1 , wherein the high density polyethylene particles are formed from high density polyethylene polymer that has a half crystallization time period during an isothermal crystallization at 123° C. of greater than 2.5 minutes.3. A polymer composition as defined in claim 1 , wherein the high density polyethylene particles are formed from a high density polyethylene polymer that has a full width at half maximum of a melting endothermic peak of greater than 6 degrees C. when measured using a differential scanning calorimeter when tested at an isothermal temperature of 40° C.4. A polymer composition as defined in claim 1 , wherein the polymer composition is sorbitol-free.5. A polymer composition as defined in claim 1 , wherein the strength enhancing agent comprises a metal salt of an aromatic phosphate.6. A polymer composition as defined in claim 1 , wherein the strength ...

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Номер записи: 35
01-01-2015 дата публикации

Polymeric material for an insulated container

Номер: US20150001435A1
Автор: Charles T. Wallace, Chris K. Leser, Daniel O. Davis, Jason J. Paladino, Jeffrey A. Mann, John B. Euler, Milan C. Maravich, Philip A. Driskill, Randy A. Bowlds, Svetlana I. Contrada
Принадлежит: Berry Plastics Corp

A formulation includes a polymeric material, a nucleating agent, a blowing agent, and a surface active agent. The formulation can be used to form a container.

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Номер записи: 36
03-01-2019 дата публикации

Foamed Silicone in Wound Care

Номер: US20190001019A1
Автор: Eibpoosh Shiva, Hansson Dennis, Lindgren Lars
Принадлежит:

The present invention relates to a silicone foam that is produced in-situ at a wound site, e.g. in a wound cavity, through a multi-component system, based on a physical foaming process, wherein the gas required to form the foam structure is provided through the blowing agent independently of the curing reaction of the polyorganosiloxane components of the multi-component system. Therefore, in accordance with the present invention, the blowing agent is provided as a distinct entity of the multi-component system that is, in particular, not the result of any chemical reaction taking place in the multi-component system. The present invention also relates to a device for producing the foam and the corresponding negative pressure wound therapy kit. 1. A multi-component system for producing a silicone foam , said system comprising: a first component comprising a first polyorganosiloxane , said first polyorgano-siloxane comprising at least two silicon-bonded hydrogen atoms;a second component comprising a second polyorganosiloxane, said second poly-organosiloxane comprising at least two alkenyl- and/or alkynyl groups, and at least one hydrosilylation catalyst; said multi-component system further comprising at least one blowing agent.3. The multi-component system according to claim 2 , wherein R10 and R9 is a C2-C3 alkenyl or C2-C3 alkynyl claim 2 , and wherein R1 and R2 claim 2 , independently claim 2 , are selected from monovalent or functionally substituted C4-C12 hydrocarbon group.4. The multi-component system according to claim 2 , wherein R1 and R2 are independently selected from the group consisting of C5-C12 aryl claim 2 , preferably phenyl or diphenyl claim 2 , C4-C12 alkyl claim 2 , C4-C12 alkenyl claim 2 , C4-C12 alkynyl claim 2 , and C4-C12 alkoxy.5. The multi-component system according to claim 2 , wherein R3 to R8 are independently selected from the group consisting of C1-C3 alkyl claim 2 , C2-C3 alkenyl claim 2 , C2-C3 alkynyl claim 2 , and C1-C3 alkoxy claim 2 ...

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Номер записи: 37
04-01-2018 дата публикации

PROCESS FOR FORMING CLOSED CELL EXPANDED LOW DENSITY POLYETHYLENE FOAM AND PRODUCTS FORMED THEREBY

Номер: US20180001522A1
Автор: Loew Randolph Julian, Riccelli Joseph
Принадлежит:

The process for forming closed cell expanded low density polyethylene foam includes the steps of: providing a mixture including low density polyethylene pellets and an effective amount of hydrocarbon scavenger additives or degassing agents, such as glycerides; adding a primary blowing agent comprising one of liquid propane, liquid butane, and combinations thereof, to the mixture and gasifying the blowing agent to expand the low density polyethylene; forming the expanded low density polyethylene into sheets, curing the expanded low density polyethylene until 80%, generally at least 99%, of the primary blowing agent is dissipated from cells within the expanded low density polyethylene forming evacuated closed cell low density polyethylene sheets. 1. A process of forming low density expanded polyethylene foam comprising the steps of:providing a mixture including low density polyethylene pellets and an effective amount of glycerides as a degassing agent;adding a primary blowing agent comprising one of liquid propane, liquid butane, and combinations thereof, to the mixture and gasifying the blowing agent to expand the low density polyethylene;forming the expanded low density polyethylene into sheets,curing the expanded low density polyethylene until 80% of the primary blowing agent is dissipated from cells within the expanded low density polyethylene forming closed cell low density polyethylene sheets.2. The process of forming low density expanded polyethylene foam according to wherein at least 95% of the primary blowing agent is dissipated from cells within the expanded low density polyethylene before closed cell low density polyethylene sheets are subsequently processed.3. The process of forming low density expanded polyethylene foam according to wherein at least 99% of the primary blowing agent is dissipated from cells within the expanded low density polyethylene before closed cell low density polyethylene sheets are subsequently processed.4. The process of forming ...

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Номер записи: 38
04-01-2018 дата публикации

METHOD FOR PRODUCING AN AEROGEL MATERIAL

Номер: US20180001576A1
Автор: HUBER LUKAS, KOEBEL MATTHIAS
Принадлежит: EMPA EIDGENOSSISCHE MATERIALPRUFUNGS- UND FORSCHUNGSANSTALT

The invention relates to a method for producing an aerogel material with a porosity of at least 0.55 and an average pore size of 10 nm to 500 nm, having the following steps: a) preparing and optionally activating a sol; b) filling the sol into a casting mold (); c) gelling the sol, whereby a gel is produced, and subsequently aging the gel; at least one of the following steps d) and e), d) substituting the pore liquid with a solvent; e) chemically modifying the aged and optionally solvent-substituted gel () using a reaction agent; followed by f) drying the gel, whereby the aerogel material is formed. The casting mold used in step b) is provided with a plurality of channel-forming elements () which are designed such that the sol filled into the casting mold lies overall at a maximum distance X from a channel-forming element over a specified minimum length L defined in the channel direction of the elements, with the proviso that X<15 mm and L/X>3. 1. A process for the production of an aerogel material with a porosity of at least 0.55 and an average pore size of 10 nm to 500 nm , comprising the following steps:a) preparing and optionally activating a sol;b) filling the sol into a casting mold;c) gelling the sol, whereby a gel is produced, and subsequently aging the gel; at least one of the following steps d) and e)d) exchanging the pore liquid with a solvente) chemically modifying the aged and optionally solvent-exchanged gel using a reacting agent; followed byf) drying the gel, whereby the aerogel material is formed; characterized in that the casting mold used in step b) is provided with a plurality of channel-forming elements, which are configured such that, along a specified minimum length L defined in the channel direction of the elements, every location of the sol filled into the casting mold has a maximum distance X from a channel-forming element fulfilling the provision that X≦15 mm and L/X>3.2. The process according to claim 1 , wherein the channel-forming ...

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Номер записи: 39
03-01-2019 дата публикации

Silicone foam sheet and method of producing the same

Номер: US20190001618A1
Автор: Akihiro Nakamura, Kohei Doi, Syuji Endo, Toru Iseki
Принадлежит: Dow Corning Toray Co Ltd, Dow Toray Co Ltd, Nitto Denko Corp

Provided is a silicone foam sheet that expresses excellent bubble removability, that has satisfactory adhesiveness with an adherend and satisfactory sealability, that maintains the expression of these effects even when its thickness is reduced, that preferably expresses a stable modulus of elasticity over a region from a low-temperature region to a high-temperature region, and that suppresses both of its compression set in the low-temperature region and its compression set in the high-temperature region to low levels. Also provided is a method of producing such silicone foam sheet. The silicone foam sheet comprises an open-cell structure having a thickness of from 10 μm to 3,000 μm, wherein wherein an open-cell ratio is 90% or more, an average cell diameter of the silicone foam sheet is from 1 μm to 50 μm, and 90% or more of all cells therein has a cell diameter of 80 μm or less.

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Номер записи: 40
07-01-2016 дата публикации

Phenolic resin foam board, and method for manufacturing same

Номер: US20160002428A1
Автор: Hisashi Mihori, Takatoshi Kitagawa, Takayuki Kuroda
Принадлежит: Asahi Kasei Construction Materials Corp

The present invention is a phenolic resin foam board having a thickness of 40 mm or more to 300 mm or less, when the phenolic resin foam board is sliced into n pieces (n≧5) at approximately equal intervals of 8 mm or more to 10 mm or less, a density of an n-th specimen is d n , an average density of n pieces of specimens is d ave , a lowest density among the densities of n pieces of specimens is d min , 0≦(d ave −d min )/d ave ≦0.12 is established, and when values for D i =(d i +d (i+1) )/2 are calculated, D i values are plotted and points corresponding to the D i values are connected, resulting in a density distribution curve, no straight line parallel to the horizontal axis intersects the density distribution curve at four points.

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Номер записи: 41
05-01-2017 дата публикации

Composition For Preparing A Polymeric Foam

Номер: US20170002160A1
Автор: III Frank William, NEUBER, SCHOLZ Patrizia, WEGNER Jan-Erik
Принадлежит: Clariant International, Ltd.

The present invention relates to composition for the preparation of a polymeric foam with improved thermal properties, to a polymeric foam obtainable therefrom, and to a method for preparing such a polymeric foam each for them comprising (i) an at least essentially amorphous polymer resin and (ii) a nucleating agent. The at least essentially amorphous polymer resin is preferably polystyrene. The nucleating agent is preferably selected from the group consisting of 1,3:2,4-bis-(benzylidene)-sorbitol derivates and mixtures thereof, and is preferably 1,3:2,4-bis-O-(4-methylbenzylidene)-D-sorbitol, 1,3:2,4-bis-(3,4-Dimethylbenzylidene)-sorbitol and 1,3:2,4-bis-(4-propylbenzylidene)-propyl sorbitol. 112.-. (canceled)15. (canceled) The present invention relates to compositions for the preparation of a polymeric foam with improved thermal properties, and to a foamed polymeric article obtainable therefrom, and to a method for preparing such a polymeric foam or article.In response to environmental concerns, there has been an evolution from using hydrochlorofluorocarbon (HCFC) foam blowing agents to using carbon dioxide and/or hydrocarbons and alcohols. Unfortunately, as a result of this change, the thermal conductivity of foam materials has increased due to the higher conductivity of these new blowing agents. This results in insulation foams that no longer fulfill the required product specifications unless additional steps are taken to increase the thermal resistance of these insulation foams.It is known that an infrared attenuation agent (IAA) can be used to improve an insulation foam. An effective infrared attenuation agent favors increased reflection and absorption and decreased transmission of heat radiation as much as possible. Traditionally, inorganic materials have been used as IAA to reduce the portion of heat radiation. This includes, for example, graphite, aluminum, stainless steel, cobalt, nickel, carbon black, and titanium dioxide. As an example for several ...

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Номер записи: 42
05-01-2017 дата публикации

Nanocellular foam with solid flame retardant

Номер: US20170002162A1
Автор: Anne M. Kelly-Rowley, LIANG Chen, Shana P. Bunker, Stephane Costeux
Принадлежит: Dow Global Technologies LLC

Prepare nanofoam by (a) providing an aqueous solution of a flame retardant dissolved in an aqueous solvent, wherein the flame retardant is a solid at 23° C. and 101 kiloPascals pressure when in neat form; (b) providing a fluid polymer composition selected from a solution of polymer dissolved in a water-miscible solvent or a latex of polymer particles in a continuous aqueous phase; (c) mixing the aqueous solution of flame retardant with the fluid polymer composition to form a mixture; (d) removing water and, if present, solvent from the mixture to produce a polymeric composition having less than 74 weight-percent flame retardant based on total polymeric composition weight; (e) compound the polymeric composition with a matrix polymer to form a matrix polymer composition; and (f) foam the matrix polymer composition into nanofoam having a porosity of at least 60 percent.

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Номер записи: 43
05-01-2017 дата публикации

Foamable particle and method of use

Номер: US20170002167A1
Автор: Keigo Shimura
Принадлежит: Sekisui Voltek LLC

A physically crosslinked foamable particle comprises a polyolefin resin and a chemical foaming agent, the foamable particle having a volume of at least about 0.002 mm 3 .

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Номер записи: 44
05-01-2017 дата публикации

LOW TEMPERATURE PROCESSES FOR PRODUCING DRY CELLULOSE BASED FOAMS

Номер: US20170002168A1
Автор: BUCHMAN Michael, Curtis-Fisk Jaime L., JOSHI Kinjalbahen, Keenan Andrea C., SHESKEY Paul J., THOMAS Jodi A.
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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Номер записи: 45
04-01-2018 дата публикации

Starch Foams Using Specialized Lignin

Номер: US20180002451A1
Автор: Aldi Robert, GE Changfeng, Lansing Baxter, Tudman Scott
Принадлежит:

This application provides a method of using a highly clarified and clean lignin, derived from a specific biorefinery process to make a starch foam and products of the same. The lignin can be used as a low cost filler substitute for starch and other substrates that are currently employed in foam applications. The lignin has the right mechanical, physical, thermoplastic and barrier properties to enable easy handling and to impart improved properties such as UV resistance, water resistance and other physical parameters to starch foams. 1. An expanded matrix , comprising a mixture of starch comprising amylose and amylopectin , and clean lignin , the lignin being present in a % weight ratio of from about 1:99 to about 50:50 of the starch , the expanded matrix having a uniform distribution of cells throughout.2. The expanded matrix according to claim 1 , wherein the starch comprises from about 10% to 90% amylose by weight.3. The expanded matrix according to claim 2 , wherein the starch comprises about: 10% claim 2 , 15% claim 2 , 20% claim 2 , 25% claim 2 , 30% claim 2 , 35% claim 2 , 40% claim 2 , 45% claim 2 , 50% claim 2 , 55% claim 2 , 60% claim 2 , 65% claim 2 , 70% claim 2 , 75% claim 2 , 80% claim 2 , 85% claim 2 , or 90% amylose by weight.46.-. (canceled)7. The expanded matrix according to claim 1 , wherein the matrix is flexible.8. The expanded matrix according to claim 1 , wherein the matrix is rigid.9. The expanded matrix according to claim 1 , having a lower compressive strength compared to an expanded matrix of pure starch.10. The expanded matrix according to claim 9 , wherein the expanded matrix has a compressive strength of 0.10 to 0.18 MPa.11. The expanded matrix according to claim 1 , wherein the mixture comprises 1-10% by weight lignin claim 1 , and the expanded matrix has a unit density of less than about 39 kg/m3 claim 1 , a resiliency of at least 63% claim 1 , and a compressive strength of at least 0.14 MPa.1213.-. (canceled)14. The expanded matrix ...

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Номер записи: 46
02-01-2020 дата публикации

STYRENE RESIN EXTRUDED FOAM BODY AND METHOD FOR PRODUCING SAME

Номер: US20200002496A1
Автор: Kikuchi Takenori, Kurihara Shunji, Takahashi Daishi
Принадлежит: KANEKA CORPORATION

A styrene resin extruded foam includes graphite and a styrene resin. The graphite is in an amount of 0.5 to 10.0 parts by weight relative to 100 parts by weight of the styrene resin. The graphite has an average particle diameter of 2.5 μm to 9 μm. A laser scattering intensity is not less than 5 {%/(mg/mL)}/wt % per unit solution concentration of the graphite as measured by a particular method. 1. A styrene resin extruded foam , comprising graphite and a styrene resin ,wherein the graphite is in an amount of 0.5 to 10.0 parts by weight relative to 100 parts by weight of the styrene resin,wherein the graphite has an average particle diameter of 2.5 to 9 μm, andwherein a laser scattering intensity is not less than 5 {%/(mg/mL)}/wt % per unit solution concentration of the graphite as measured by subjecting a solution, in which the styrene resin extruded foam is dispersed in a solvent, to measurement by laser diffractometry using a laser beam with a wavelength of 632.8 nm.2. The styrene resin extruded foam according to claim 1 , wherein the laser scattering intensity per unit solution concentration of the graphite is not less than 5.5 {%/(mg/mL)}/wt %.3. The styrene resin extruded foam according to claim 1 , wherein X+Y>10 claim 1 , where X {%/(mg/ml)}/wt % is the laser scattering intensity per unit solution concentration of the graphite claim 1 , and Y (μm) is the average particle diameter of the graphite.4. The styrene resin extruded foam according to claim 1 , wherein the average particle diameter of the graphite is 3 μm to 6 μm.5. The styrene resin extruded foam according to claim 1 , wherein the graphite has a fixed carbon content of not less than 80%.6. The styrene resin extruded foam according to claim 1 , wherein an amount of a hydrofluoroolefin added as a foaming agent to 100 parts by weight of the styrene resin is 1.0 to 14.0 parts by weight.7. The styrene resin extruded foam according to claim 1 , wherein the hydrofluoroolefin is contained in an amount of 0.05 ...

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Номер записи: 47
02-01-2020 дата публикации

Polymer foam and preparation method thereof

Номер: US20200002498A1
Автор: Fuqi Liu, Zhenhuan LUO
Принадлежит: Dongguan Hailex Polymer Material Science and Technology Co Ltd

The present disclosure relates to a polymer foam and a preparation method thereof. The polymer foam is obtained by physically foaming a thermoplastic elastomer or a polyolefin material, and has an apparent density of 0.30 g/cm3 or less and a rebound degree of 50% or more as measured according to ASTM D2632.

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Номер записи: 48
02-01-2020 дата публикации

METHOD FOR PHYSICALLY FOAMING A POLYMER MATERIAL AND FOAMED ARTICLE

Номер: US20200002499A1
Автор: Liu Fuqi, Luo Zhenhuan
Принадлежит:

The present disclosure relates to a method for physically foaming a polymer material and a foamed article. The method for physically foaming a polymer material comprises: (1) making a thermoplastic elastomer or a polyolefin material into a blank with an injector, an extruder, or a molding press; (2) subjecting the polyolefin blank to a crosslinking reaction to obtain a crosslinked polyolefin blank; (3) subjecting the thermoplastic elastomer blank or the crosslinked polyolefin blank to a high pressure impregnation with a supercritical fluid in an autoclave, then releasing the pressure to a normal pressure to obtain a supercritical fluid-impregnated blank; and (4) placing the supercritical fluid-impregnated blank into an end-product mold to perform an 1:1 in-mold foaming to obtain a finished foam article. 1. A method for physically foaming a polymer material , comprising:(1) making a thermoplastic elastomer or a polyolefin material into a thermoplastic elastomer blank or a polyolefin blank with an injector, an extruder, or a molding press;(2) subjecting the polyolefin blank to a crosslinking reaction to obtain a crosslinked polyolefin blank;(3) subjecting the thermoplastic elastomer blank or the crosslinked polyolefin blank to a high pressure impregnation with a supercritical fluid at a pressure of 10-50 MPa in an autoclave, then releasing the pressure to a normal pressure to obtain a supercritical fluid-impregnated blank; and(4) placing the supercritical fluid-impregnated blank into an end-product mold to perform an 1:1 in-mold foaming to obtain a finished foam article.2. The method according to claim 1 , wherein claim 1 , the thermoplastic elastomer comprises at least one of a thermoplastic polyurethane (TPU) claim 1 , a thermoplastic polyester elastomer (TPEE) claim 1 , and a polyether block amide elastomer (Pebax) claim 1 , or a mixture thereof.3. The method according to claim 1 , wherein claim 1 , the polyolefin material comprises at least one of poly(ethylene-co ...

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Номер записи: 49
02-01-2020 дата публикации

Compositions and methods comprising vinylidene fluoride

Номер: US20200002500A1
Автор: David J. Williams, Rajiv Ratna Singh, Robert Richard
Принадлежит: Honeywell International Inc

This invention relates to compositions and methods which make advantageous use of vinylidene fluoride (CH2═CF2), and in particular embodiments, to heat transfer fluids and heat transfer methods, blowing agents, and thermoplastic foams which utilize vinylidene fluoride (CH2═CF2). Compositions of the present invention include from about 0.1 to about 60 percent, on a weight basis, of a co-agent and from about 99.0 to about 40 percent, on a weight basis, of vinylidene fluoride (CH2═CF2).

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Номер записи: 50
04-01-2018 дата публикации

FILM WITH VOID SPACES BONDED THROUGH CATALYSIS AND METHOD OF PRODUCING THE SAME

Номер: US20180002508A1
Автор: Haruta Hiromoto, Hattori Daisuke, Murakami Nao, NAKAMURA Kozo, Takemoto Hiroyuki, Uwada Kazuki
Принадлежит: NITTO DENKO CORPORATION

A film is provided with void spaces having a porous structure with less cracks and a high proportion of void space as well as having strength. The film with void spaces includes one kind or two or more kinds of structural units that form a structure with minute void spaces, wherein the structural units are chemically bonded through catalysis. For example, the abrasion resistance measured with BEMCOT® is in the range from 60% to 100%, and the folding endurance measured by the MIT test is 100 times or more. The film with void spaces can be produced by forming the precursor of the silicone porous body using sol containing pulverized products of a gelled silicon compound and then chemically bonding the pulverized products contained in the precursor of the silicone porous body. The chemical bond among the pulverized products is preferably a chemical crosslinking bond among the pulverized products. 1. A film with void spaces comprising:one kind or two or more kinds of structural units that form a structure with minute void spaces, whereinthe structural units are chemically bonded through catalysis.2. The film according to claim 1 , whereinthe chemical bond among the structural units includes a direct bond.3. The film according to claim 1 , whereinthe chemical bond among the structural units includes an indirect bond.4. The film according to claim 1 , whereinthe bond among the structural units includes a hydrogen bond or a covalent bond.5. The film according to claim 1 , whereinthe structural units are in the shape of at least one of a particle, fiber, and a plate.6. The film according to claim 5 , whereineach of the structural unit in the shape of a particle and the structural unit in the shape of a plate is made of an inorganic matter.7. The film according to claim 5 , whereina configuration element of the structural unit in the shape of a particle includes at least one element selected from the group consisting of Si, Mg, Al, Ti, Zn, and Zr.8. The film according to ...

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Номер записи: 51
07-01-2021 дата публикации

Foams based on thermoplastic polyurethanes

Номер: US20210002445A1
Автор: Frank Braun, Frank Prissok
Принадлежит: BASF SE

Expandable thermoplastic polyurethane comprising blowing agent, wherein the Shore hardness of the thermoplastic polyurethane is from A 44 to A 84.

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Номер записи: 52
13-01-2022 дата публикации

RHEOLOGY MODIFICATION BY POROUS GEL PARTICLES

Номер: US20220010086A1
Автор: Cadix Arnaud, Wilson David James
Принадлежит: Rhodia Operations

Modification of the rheology of a liquid medium, aqueous or nonaqueous, with polymers in the form of specific particles obtained by grinding (micronizing) a porous macrogel, itself prepared by a process comprising a radical polymerization step which comprises reacting in the presence of pore formers monomers containing monomers bearing at least two ethylenic unsaturations, typically in combination with monomers bearing a single ethylenic unsaturation; a polymerization initiator; and optionally a polymerization control agent. These polymer particles keep other particles in suspension within the liquid medium, and also the stabilized suspensions are obtained. 1. A method comprising adding crosslinked polymer particles (p) to a liquid medium , the crosslinked polymer particles (p) obtained by grinding a macrogel prepared by a process comprising a radical polymerization step (E) which comprises reacting , within a reaction medium M comprising pore formers: at least one radical polymerization initiator;', 'optionally at least one radical polymerization control agent, 'ethylenically unsaturated monomers, containing monomers m1 bearing at least two ethylenic unsaturations;'}to modify the rheology of said liquid medium.2. The method as claimed in claim 1 , wherein the monomers employed in step (E) comprise not only monomers m1 but also monomers m2 bearing a single ethylenic unsaturation claim 1 , preferably with a mass ratio m1/m2 of between 0.01 and 30.3. The method as claimed in claim 1 , wherein the liquid medium is an aqueous liquid medium.4. The method as claimed in claim 1 , wherein particles are kept in suspension within the liquid medium.5. The method as claimed in claim 1 , wherein the pore formers employed in step (E) are gas bubbles.6. The method as claimed in claim 1 , wherein step (E) first comprises a step (E1) in which only a part of the ethylenically unsaturated monomers are polymerized in the absence of pore formers claim 1 , then a step (E2) in which the ...

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Номер записи: 53
13-01-2022 дата публикации

FOAMS AND METHOD OF FORMING FOAMS OF IONOMERS OF COPOLYMERS OF VINYLIDENE AROMATIC MONOMER AND UNSATURATED COMPOUNDS WITH ACID GROUPS

Номер: US20220010087A1
Автор: Balan Abidin, Bosiers Luc, Van Nuffel Claude T.E.
Принадлежит:

A foaming composition useful to make an extruded foam is comprised of comprising a plurality of chains of a copolymer of one or more vinylidene aromatic monomers and one or more unsaturated acids, the copolymer having about 0.01 to about 15.0 percent by weight of the one or more unsaturated acids wherein the acid groups are pendant from the copolymer a metal salt, metal oxide or combination thereof, the metal having a valence of at least 2; and one or more blowing agents. The foaming composition may be made into a foam by heating the foaming composition to a temperature sufficient to melt and ionically crosslink said copolymer which is then extruded through a die forming a foam. The foam is comprised of an ionically crosslinked aforementioned copolymer, wherein the copolymer is crosslinked through ionic bonds between the unsaturated acids and the metal of the metal salt or metal oxide. 1. A foaming composition comprising:(a) a plurality of chains of a copolymer of one or more vinylidene aromatic monomers and one or more unsaturated acids, the copolymer having about 0.01 to about 15.0 percent by weight of the one or more unsaturated acids wherein the acid groups are pendant from the copolymer;(b) a metal salt, metal oxide or combination thereof, the metal having a valence of at least 2; and,(c) one or more blowing agents.2. The foaming composition of wherein the foaming composition is an admixture of each of (a) claim 1 , (b) and (c).3. The foaming composition of claim 1 , wherein the foaming composition are separate parts that are brought into contact when forming a foam.4. The foaming composition according to claim 1 , wherein the metal is one or more of transition metals claim 1 , post transition metals claim 1 , metalloids or an alkaline earth metals.5. The foaming composition according to claim 1 , wherein the metal is one or more of zinc claim 1 , zirconium claim 1 , aluminum claim 1 , magnesium and calcium.6. The foaming composition according to claim 1 , ...

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Номер записи: 54
13-01-2022 дата публикации

FOAMS AND METHODS OF FORMING FOAMS OF CHAIN EXTENDED/BRANCHED COPOLYMERS OF VINYLIDENE SUBSTITUTED AROMATIC MONOMERS

Номер: US20220010088A1
Автор: Balan Abidin, Bosiers Luc, Van Nuffel Claude T.E.
Принадлежит:

A foaming composition useful to make an extruded foam is comprised of: a copolymer of a vinylidene aromatic monomer and an unsaturated compound containing nucleophilic groups, a copolymer of vinylidene aromatic monomer and an unsaturated compound having electrophilic groups; and a blowing agent. The foaming composition may be made into a foam by heating the foaming composition to a temperature sufficient to melt and react said copolymers to form a chain extended/branched copolymer and extruding the foaming composition from a higher pressure to a lower pressure to form an extruded foam comprised of the chain extended/branched copolymer. The foam is comprised of a chain extended/branched copolymer that is the reaction product of (i) a copolymer of one or more vinylidene aromatic monomers and one or more unsaturated compounds containing nucleophilic groups, and (ii) a copolymer of one or more vinylidene aromatic monomers and one or more unsaturated compounds having electrophilic groups. 1. A foaming composition comprising:(a) one or more copolymers of one or more vinylidene aromatic monomers and one or more unsaturated compounds containing nucleophilic groups, the copolymer having on average 0.02 to about 3.0 percent by weight of nucleophilic groups pendant from the copolymer;(b) one or more copolymers of one or more vinylidene aromatic monomers and one or more unsaturated compounds having electrophilic groups; and(c) one or more blowing agents.2. The foaming composition according to wherein the one or more copolymers of one or more vinylidene aromatic monomers and one or more unsaturated compounds having pendant electrophilic groups is present in an amount of 0.1 to about 0.5 percent by weight of the foaming composition.3. The foaming composition according to wherein the nucleophilic groups are carboxylic acid claim 1 , alcohol claim 1 , phenol claim 1 , amine claim 1 , aniline claim 1 , imidazole claim 1 , tetrazole claim 1 , thiol claim 1 , boronic acid claim 1 , ...

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Номер записи: 55
04-01-2018 дата публикации

COMPOSITION AND METHOD FOR FORMING A DIELECTRIC LAYER

Номер: US20180005820A1
Автор: Handelman Amir, LITSYN SIMON, Roizin Yakov, Rosenman Gil
Принадлежит:

A porous layer is described. The porous layer comprises a solidified sol-gel inorganic material having a distribution of nanometric voids, wherein at least some of nanometric voids are at least partially coated internally by carbon or a hydrophobic substance containing carbon. 1. A method of forming a porous layer , comprising:{'sup': '2', 'coating a substrate with a composition comprising a sol-gel precursor and a mixture of discrete nanospheres in a medium that at least partially prevents assembly of said nanosphreres into supramolecular or colloidal structures, wherein said nanospheres comprising organic substance of biological origin, and wherein a variance in a size of said nanosphreres is less than 2 nm;'}drying said composition; andtreating said dried composition so as to decompose said nanospheres, thereby forming voids in said dried composition.2. The method according to claim 1 , wherein said treatment comprises calcination.3. The method of claim 2 , wherein said calcination is at a temperature of from about 300° C. to about 600° C.4. The method according to claim 1 , wherein said treating comprises applying optical radiation.5. The method according to claim 4 , wherein said optical radiation is ultraviolet radiation.6. The method according to claim 1 , further comprising passivating internal walls of said voids such that said walls are hydrophobic.7. The method according to claim 6 , wherein said passivation is by a hydrophobic primer selected from the group consisting of a hexamethyldisilazane claim 6 , a octadecyltrichlorosilane and a phenyltriethoxysilane.8. The method according to claim 1 , wherein said sol-gel precursor is an orthosilicate sol-gel precursor.9. The method according to claim 1 , wherein said silicate sol-gel precursor comprises tetraethylorthosilicate.10. The method according to claim 1 , wherein said sol-gel precursor comprises a silsesquioxane.11. The method according to claim 10 , wherein said silsesquioxane is selected from the ...

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Номер записи: 56
12-01-2017 дата публикации

Methods for altering the impact strength of noncellular thermoplastic materials

Номер: US20170008202A1
Автор: Dustin Miller, Vipin Kumar
Принадлежит: UNIVERSITY OF WASHINGTON

Methods for reducing the density of thermoplastic materials and the articles made therefrom having similar or improved mechanical properties to the solid or noncellular material. Also disclosed are improvements to foaming methods and the cellular structures of the foams made therefrom, and methods for altering the impact strength of solid or noncellular thermoplastic materials and the shaping of the materials into useful articles.

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Номер записи: 57
14-01-2021 дата публикации

FOAMING AGENTS AND COMPOSITIONS CONTAINING FLUORINE SUBSTITUTED OLEFINS, AND METHODS OF FOAMING

Номер: US20210007784A1
Автор: Bowman James M., Williams David J.
Принадлежит:

Various uses of fluoroalkenes, including tetrafluoropropenes, particularly (HFO-1336) in a variety of applications, including as blowing agents for integral skin foams are disclosed. 1. A method of forming an integral skin thermoset foam comprising: {'br': None, 'XCFzR3-z \u2003\u2003(I)'}, 'providing a polymer foam formulation comprising a blowing agent composition comprising from about 5% by weight to about 95% by weight of a C4 fluoroalkene according to Formula Iwhere X is a C3 unsaturated, substituted radical having at least one fluorine substituent and z is 3; andfoaming said polymer foam formulation to form an integral skin foam.2. The method of wherein said foam comprises a polyurethane foam.3. The method of wherein said blowing agent further comprises a hydrofluorocarbon selected from the group consisting of difluoromethane (HFC32); 1 claim 1 ,1 claim 1 ,1 claim 1 ,2 claim 1 ,1-pentafluoroethane (HFC125); 1 claim 1 ,1 claim 1 ,1-trifluoroethane (HFC143a); 1 claim 1 ,1 claim 1 ,2 claim 1 ,2tetrafluorothane (HFC134); 1 claim 1 ,1 claim 1 ,1 claim 1 ,2-tetrafluoroethane (HFC134a); 1 claim 1 ,1-difluoroethane (HFC152a); 1 claim 1 ,1 claim 1 ,1 claim 1 ,2 claim 1 ,3 claim 1 ,3 claim 1 ,3-heptafluoropropane (HFC227ea); 1 claim 1 ,1 claim 1 ,1 claim 1 ,3 claim 1 ,3pentatfluoropropane (HFC245fa); 1 claim 1 ,1 claim 1 ,1 claim 1 ,3 claim 1 ,3-pentafluorobutane (HFC365mfc).4. The method of wherein said hydrofluorocarbon comprises 1 claim 3 ,1 claim 3 ,1 claim 3 ,2 claim 3 ,2 claim 3 ,3 claim 3 ,4 claim 3 ,5 claim 3 ,5 claim 3 ,5-decafluoropentane (HFC4310mee).5. The method of wherein said blowing agent further comprises an additive selected from the group consisting of hydrocarbons claim 1 , C1 to C5 alcohols claim 1 , C1 to C4 aldehydes claim 1 , C1 to C4 ketones claim 1 , C1 to C4 ethers claim 1 , carbon dioxide claim 1 , and C1 to C4 diethers.6. The method of wherein said hydrocarbon is selected from the group consisting of pentane isomers and butane isomers.7. A ...

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Номер записи: 58
12-01-2017 дата публикации

MASTERBATCH AND APPLICATIONS THEREOF

Номер: US20170009039A1
Автор: EBE Takumi, MIKI Katsushi
Принадлежит: MATSUMOTO YUSHI-SEIYAKU CO., LTD.

A masterbatch containing an organic base component and heat-expandable microspheres including a thermoplastic resin shell and a thermally vaporizable blowing agent encapsulated therein. The organic base component has a melting point not higher than the expansion-initiation temperature of the heat-expandable microspheres and a melt flow rate (MFR, g/10 mm) higher than 50 and not higher than 2200. A ratio of the heat-expandable microspheres ranges from 30 to 80 wt % of the total weight of the heat-expandable microspheres and the organic base component. Also disclosed is a molding composition, a foamed molded article manufactured by molding the molding composition and a weathers tripping. 1. A masterbatch comprising:heat-expandable microspheres comprising a thermoplastic resin shell and a thermally vaporizable blowing agent encapsulated therein; andan organic base component;wherein the organic base component has a melting point not higher than the expansion-initiation temperature of the heat-expandable microspheres and a melt flow rate (MFR, g/10 min) higher than 50 and not higher than 2200, andthe ratio of the heat-expandable microspheres in the masterbatch ranges from 30 to 80 wt % of the total weight of the heat-expandable microspheres and the organic base component.2. The masterbatch as claimed in claim 1 , wherein the organic base component is an ethylenic polymer claim 1 , and a ratio of ethylene monomer to all monomers constituting the ethylenic polymer is at least 60 wt %.3. The masterbatch as claimed in claim 1 , wherein the organic base component has a melting point ranging from 45 to 180° C.4. The masterbatch as claimed in claim 1 , wherein the organic base component has a tensile fracture stress not higher than 30 MPa.5. The masterbatch as claimed in claim 1 , wherein the thermoplastic resin is produced by polymerizing a polymerizable component containing a nitrile monomer.6. The masterbatch as claimed in claim 5 , wherein the polymerizable component ...

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Номер записи: 59
12-01-2017 дата публикации

Shape Memory Products and Method For Making Them

Номер: US20170009040A1
Автор: Kurup Sreeni
Принадлежит: TYCO ELECTRONICS UK LTD.

A method for producing a heat-shrinkable product is provided. First, a polymer composition containing a polymer, a crosslinking agent and a micro-encapsulated foaming agent uniformly dispensed therein is melt mixed. The foaming agent has a peak activation temperature which is higher than a temperature of the melt mixing. Next, the polymer composition is injection molded into a molded product. This carried out at the peak activation temperature to activate the foaming agent. Then, the molded product is crosslinked within the mold. 1. A method for producing a shape memory product comprising the steps of:(i) melt mixing a polymer composition containing a polymer, a crosslinking agent and a micro-encapsulated foaming agent uniformly dispensed therein, the micro-encapsulated foaming agent having a peak activation temperature which is higher than a temperature of the melt mixing,(ii) injection molding the polymer composition into a molded product, the injection molding carried out at the peak activation temperature to activate the micro-encapsulated foaming agent; and(iii) crosslinking the molded product within a mold.2. The method according to claim 1 , wherein the micro-encapsulated foaming agent is a blowing agent.3. The method according to claim 2 , wherein the polymer composition includes a polyolefin.4. The method according to claim 3 , wherein the polymer composition further includes polyethylene.5. The method according to claim 4 , wherein the polymer composition further includes ethylene-vinyl acetate copolymer (EVA).6. The method according to claim 1 , wherein the polymer composition includes 40 to 60% by weight of polyethylene and 10 to 20% by weight of EVA.7. The method according to claim 1 , wherein injection molding is carried out at a temperature in a range of 120 to 160° C.8. The method according to claim 7 , wherein the mold is heated to a temperature in a range of 170 to 210° C.9. The method according to claim 8 , wherein the injection molding is carried ...

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Номер записи: 60
11-01-2018 дата публикации

FOAM BASED NON-NEWTONIAN MATERIALS FOR USE WITH AIRCRAFT ENGINE COMPONENTS

Номер: US20180009201A1
Автор: Kray Nicholas Joseph, Sellinger Aaron Todd
Принадлежит:

An engine component for a turbine engine is provided. The engine component can include a substrate defining a surface, and an energy absorbing composite positioned on the surface of the substrate or within the substrate. The energy absorbing composite includes a shear thickening fluid distributed through a solid foamed synthetic polymer matrix. 1. An engine component for a turbine engine , the engine component comprising:a substrate defining a surface; andan energy absorbing composite positioned on the surface of the substrate or within the substrate, wherein the energy absorbing composite includes a shear thickening fluid distributed through a solid foamed synthetic polymer matrix.2. The engine component as in claim 1 , wherein the solid foamed synthetic polymer matrix comprises a synthetic elastomer.3. The engine component as in claim 2 , wherein the synthetic elastomer comprises an elastomeric polyurethane.4. The engine component as in claim 2 , wherein the synthetic elastomer comprises a first polymer-based elastic material and a second polymer-based elastic material.5. The engine component as in claim 4 , wherein the first polymer-based elastic material comprises an ethylene vinyl acetate or an olefin polymer claim 4 , and wherein the second polymer-based elastic material comprises a silicone polymer having dilatant properties.6. The engine component as in claim 1 , wherein the energy absorbing composite further comprises a polymer-based dilatant.7. The engine component as in claim 6 , wherein the polymer-based dilatant comprises a silicone polymer having dilatant properties.8. The engine component as in claim 6 , wherein the polymer-based dilatant comprises a borated silicone polymer.9. The engine component as in claim 1 , wherein the shear thickening fluid is a gas.10. The engine component as in claim 1 , wherein the shear thickening fluid comprises a flowable liquid containing particles suspended in a carrier.11. The engine component as in claim 10 , wherein ...

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Номер записи: 61
27-01-2022 дата публикации

FOAM AND METHOD FOR PRODUCING SAME

Номер: US20220025142A1
Автор: Kuroki Daisuke, MIYAMORI Ryo, Sato Akihiro, SEKIGUCHI Hideya
Принадлежит:

[Problem] An object of the present invention is to provide a foam including a thermoplastic resin and rubber as a main component, in which a micronized product of a cellulose fiber is uniformly dispersed, and uniformity and mechanical properties are excellent. [Solution] A foam includes a modified cellulose fiber (A) covalently bonded with a diene-based polymer, a thermoplastic resin and/or rubber (B), and a diene-based polymer (C) having a functional group capable of covalently bonding with a cellulose fiber, in which the fiber (A) is micronized, the fiber (A) has a content of 0.05 to 20% by mass, and the thermoplastic resin and/or rubber (B) has a glass transition point of −130° C. to 120° C. 1. A foam comprising:a modified cellulose fiber (A) covalently bonded with a diene-based polymer;a thermoplastic resin and/or rubber (B); anda diene-based polymer (C) having a functional group capable of covalently bonding with a cellulose fiber, whereinthe fiber (A) is micronized,the fiber (A) has a content of 0.05 to 20% by mass, andthe thermoplastic resin and/or rubber (B) has a glass transition point of −130° C. to 120° C.2. The foam according to claim 1 , wherein the thermoplastic resin and/or rubber (B) is crosslinked.3. The foam according to claim 1 ,wherein a mass ratio is (A)/(B)/(C)=1/1.5 to 2000/0.001 to 0.5.4. A production method of a foam claim 1 , comprising the following steps:(step 1)a step of adjusting a concentration by diluting a masterbatch containing:a micronized modified cellulose fiber (A) covalently bonded with a diene-based polymer,a thermoplastic resin and/or rubber (B) having a glass transition point of −130° C. to 120° C., anda diene-based polymer (C) having a functional group capable of covalently bonding with a cellulose fiber,with the (B);(step 2)a step of adding a foaming agent and, as necessary, a crosslinking agent after (step 1); and(step 3)a step of performing foam molding or crosslinking foam molding after (step 2).5. The production method ...

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Номер записи: 62
27-01-2022 дата публикации

Foam assisted drying process of nano- and microfibrillated cellulose

Номер: US20220025147A1
Автор: Hjelt Tuomo, Kinnunen-Raudaskoski Karita, Lehmonen Jani
Принадлежит:

According to an example aspect of the present invention, there is provided a method for foam assisted drying of nano- and microfibrillated cellulose, which is easily up-scalable and cost-efficient. 1. A method for drying nano- or microfibrillated cellulose comprising at least the steps of:mixing together unmodified or modified nano- or microfibrillated cellulose and a foaming agent and foaming the mixture, anddrying the foamed mixture.2. The method according to claim 1 , further comprising drying the nano- or microfibrillated cellulose into a maximum dry content of 99 wt-%.3. The method according to claim 1 , wherein the foaming agent is selected from anionic claim 1 , non-ionic or amphoteric materials or material mixtures.4. The method according to claim 3 , wherein the foaming agent is selected from sodium dodecyl sulphate (SDS) or polyvinyl alcohol (PVA) claim 3 , or is a mixture of SDS and PVA.5. The method according to claim 1 , wherein the foaming agent is used at a volume ratio of 1 to 5%.6. The method according to claim 1 , further comprising mixing together native or modified nano- or microfibrillated cellulose and a foaming agent with pressurized air and foaming the mixture by using a foam generator.7. The method according to claim 6 , wherein the air pressure is adjusted between 6 and 10 bars.8. The method according to claim 6 , wherein the foam generator is any type of foam generator claim 6 , which can be used to create foam.9. The method according to claim 1 , further comprising spreading the foamed mixture to a substrate claim 1 , such as a wire claim 1 , by using a foam applicator before drying the foam.10. The method according to claim 1 , further comprising drying the nano- or microfibrillated cellulose into a maximum dry content of 99 wt-% with a drier claim 1 , selected from infrared and air driers claim 1 , or their combination.11. A nano- or microfibrillated cellulose material claim 1 , wherein it has been dried according to the method of .12. ...

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Номер записи: 63
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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Номер записи: 64
11-01-2018 дата публикации

POROUS/NANOPOROUS PHT

Номер: US20180009948A1
Автор: Boday Dylan J., GARCIA Jeannette M., Hedrick James L., Wojtecki Rudy J.
Принадлежит:

Methods of forming nanoporous materials are described herein that include forming a polymer network with a chemically removable portion. The chemically removable portion may be polycarbonate polymer that is removable on application of heat or exposure to a base, or a polyhexahydrotriazine (PHT) or polyhemiaminal (PHA) polymer that is removable on exposure to an acid. The method generally includes forming a reaction mixture comprising a formaldehyde, a solvent, a primary aromatic diamine, and a diamine having a primary amino group and a secondary amino group, the secondary amino group having a base-reactive substituent, and heating the reaction mixture to a temperature of between about 50 degC and about 150 degC to form a polymer. Removing any portion of the polymer results in formation of nanoscopic pores as polymer chains are decomposed, leaving pores in the polymer matrix. 1. An article comprising a porous polymer having a plurality of hexahydrotriazine units , hemiaminal units , or both , the polymer having an average pore size less than about 100 nm and density less than about 1.5 g/cm.2. The article of claim 1 , further comprising a plurality of carbon fibers disposed in the porous polymer.4. The article of claim 3 , wherein each bridging group is divalent or trivalent and is bonded to at least two hexahydrotriazine units or hemiaminal units.6. The article of claim 3 , wherein the porous polymer also has a plurality of monovalent sub stitutents.8. An article comprising a porous polymer having a plurality of hexahydrotriazine units claim 3 , hemiaminal units claim 3 , or both claim 3 , the polymer having an average pore size of 20-100 nm and bulk density of 1.0-1.5 g/cm.9. The article of claim 8 , further comprising a plurality of carbon fibers disposed in the porous polymer.11. The article of claim 10 , wherein each bridging group is divalent or trivalent and is bonded to at least two hexahydrotriazine units or hemiaminal units.13. The article of claim 10 , ...

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Номер записи: 65
11-01-2018 дата публикации

BIODEGRADABLE PELLETS FOAMED BY IRRADIATION

Номер: US20180009970A1
Автор: Bastioli Catia, Lombi Roberto, Nicolini Matteo, Turati Daniele
Принадлежит:

This invention relates to biodegradable starch-based pellets which foamable by irradiation, which are particularly suitable for the manufacture of foam articles, characterised in that they have a porous structure with a low porous external skin. This invention also relates to foam articles obtained from these. 1. A process for the preparation of foamed articles , said process comprising irradiating biodegradable low density , self-sealing pellets , said pellets comprising starch essentially free of native crystallinity which does not have endothermic gelatinisation peaks associated with a ΔH of more than 0.4 J/g of dry starch when analysed by differential scanning calorimetry in a hermetic capsule with a water/dry starch ratio of 4 , said pellets being characterized by:a porous internal structure having void area greater than 15% with respect to the area of the cross-section of the pellet;a mean equivalent diameter of pores less than 100 microns andan external skin with pores in number less than 80% with respect to the internal structure having a mean equivalent diameter lower or equal to the mean equivalent diameter of the pores of the internal structure.2. The process according to claim 1 , wherein said pellets comprise at least a further polymer of synthetic or natural origin.4. The process according to claim 2 , wherein said further polymer of natural origin is selected from the group consisting of cellulose claim 2 , lignin claim 2 , proteins claim 2 , phospholipids claim 2 , casein claim 2 , polysaccharides claim 2 , natural gums claim 2 , rosinic acid claim 2 , dextrins claim 2 , their mixtures and derivatives thereof.5. The process according to claim 2 , wherein said further polymer of synthetic origin is selected from the group consisting of:thermoplastic polymers comprising homopolymers and copolymers of linear or branched aliphatic hydroxyacid having C2-C24 main chain, their lactons and lactides as well as their copolymers with aliphatic polyesters of the ...

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Номер записи: 66
08-01-2015 дата публикации

PELLET BASED TOOLING AND PROCESS FOR BIODEGRADABLE COMPONENT

Номер: US20150011664A1
Автор: Wycech Joseph
Принадлежит:

An example starch-based material for forming a biodegradable component includes a mixture of a starch and an expansion additive. The starch has an amylose content of less than about 70% by weight. The expansion additive enhances the expansion and physical properties of the starch. A method of preparing a starch-based material is also disclosed and an alternate starch-based material for forming a biodegradable component is also disclosed. 1. A starch-based material for forming a biodegradable component , comprising:a mixture of a starch having an amylose content of less than about 70% by weight and an expansion additive enhancing the physical and expansion properties of the starch.2. The starch-based material of claim 1 , wherein the expansion additive comprises between about 0.5% and 10% by weight of the mixture.3. The starch-based material of claim 1 , wherein the expansion additive includes polyvinyl butadiene.4. The starch-based material of claim 1 , wherein the expansion additive includes heat-expandable thermoplastic microspheres.5. The starch-based material of claim 4 , wherein the heat-expandable thermoplastic microspheres comprise a high-elongation acrylic copolymer.6. The starch-based material of claim 4 , wherein the heat-expandable thermoplastic microspheres are between about 45 and 120 microns in diameter in an unexpanded state.7. The starch-based material of claim 4 , wherein the heat-expandable thermoplastic microspheres are unexpanded and comprise between about 1% and 5% by weight of the mixture.8. The starch-based material of claim 4 , wherein the heat-expandable thermoplastic microspheres are at least partially or fully expanded and the expanded heat-expandable thermoplastic microspheres comprise between about 0.5% and 4% by weight of the starch-based material.9. The starch-based material of claim 1 , further comprising another claim 1 , second claim 1 , additive including at least one of an etherification additive claim 1 , latex claim 1 , peat ...

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Номер записи: 67
14-01-2021 дата публикации

FLAME-RESISTANT FOAMED STYRENE-BASED RESIN COMPOSITION

Номер: US20210009778A1
Автор: NISHIURA Masahito
Принадлежит: DAI-ICHI KOGYO SEIYAKU CO., LTD.

The present invention provides a recyclable flame-retardant expandable styrene-based resin composition that attains high flame retardancy and high heat stability with a small addition amount of a bromine-containing flame retardant. Specifically, the present invention provides a flame-retardant expandable styrene-based resin composition comprising a styrene-based resin (A), a flame retardant (B), fatty acid zinc (C), a heat stabilizer (D), and a foaming agent (F), wherein the flame retardant (B) comprises tetrabromobisphenol A-bis(2,3-dibromo-2-methylpropyl ether) (B1) and a bromine-containing flame retardant (B2) other than (B1). 1. A flame-retardant expandable styrene-based resin composition comprising a styrene-based resin (A) , a flame retardant (B) , fatty acid zinc (C) , a heat stabilizer (D) , and a foaming agent (F) ,wherein the flame retardant (B) comprises tetrabromobisphenol A-bis(2,3-dibromo-2-methylpropyl ether) (B1) and a bromine-containing flame retardant (B2) other than (B1).2. The flame-retardant expandable styrene-based resin composition according to claim 1 , wherein the ratio of the tetrabromobisphenol A-bis(2 claim 1 ,3-dibromo-2-methylpropyl ether) (B1) to the bromine-containing flame retardant (B2) other than (B1) is 1/99 to 40/60 on a weight basis.3. The flame-retardant expandable styrene-based resin composition according to claim 1 , wherein the heat stabilizer (D) is contained in an amount of 16 to 20000 parts by mass per 100 parts by mass of the fatty acid zinc (C).4. The flame-retardant expandable styrene-based resin composition according to claim 1 , wherein the fatty acid zinc (C) is contained in an amount of 0.025 to 300 parts by mass per 100 parts by mass of the tetrabromobisphenol A-bis(2 claim 1 ,3-dibromo-2-methylpropyl ether) (B1).5. The flame-retardant expandable styrene-based resin composition according to claim 1 , wherein the fatty acid zinc (C) is contained in an amount of 0.01 to 5 parts by mass per 100 parts by mass of the ...

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Номер записи: 68
14-01-2021 дата публикации

COMBINATION OF SILICA AND GRAPHITE AND ITS USE FOR DECREASING THE THERMAL CONDUCTIVITY OF VINYL AROMATIC POLYMER FOAM

Номер: US20210009779A1
Автор: KONDRATOWICZ Filip Lukasz, MIKOSZEK-OPERCHALSKA Marzena, ROJEK Piotr, UTRATA Kamil
Принадлежит:

The invention relates to the co-use of a) a certain type of silica and b) a certain type of graphite, wherein the silica and the graphite are used in a weight ratio in a range of from 1:1 to 1:10, for decreasing the thermal conductivity of vinyl aromatic polymer foam. 1. A method of decreasing the thermal conductivity of vinyl aromatic polymer foam , as measured in accordance with ISO 8301 , comprising includinga) silica in combination withb) graphite, a) the silica is amorphous and has', {'sup': '2', 'a BET surface of from 1 to 100 m/g,'}, 'an average particle size in a range of from 3 nm to 1,000 nm, and, 'wherein'} b) the graphite has', 'a carbon content in a range of from 50 to 99.99 wt. % and', 'a particle size in a range of from 0.01 to 100 μm, and, 'the silica is present in an amount of from 0.01 to less than 2 wt. %, based on the weight of the polymer (inclusive of solid and, if any, liquid additives, but exclusive of propellant), and'}the graphite is present in an amount in a range of from 0.1 to 10 wt. %, based on the weight of the vinyl aromatic polymer (inclusive of solid and, if any, liquid additives, but exclusive of propellant),wherein the silica and the graphite are used in a weight ratio in a range of from 1:1 to 1:10.2. The method according to claim 1 , wherein the silica has a BET surface of 3 to 80 m/g claim 1 , preferably 5 to 70 m/g claim 1 , more preferably 8 to 60 m/g claim 1 , such as 10 to 50 m/g claim 1 , in particular 13 to 40 m/g claim 1 , most preferably 15 to 30 m/g claim 1 , such as about 20 m/g.3. The method according to claim 1 , wherein the silica has an average particle size within a range of from 20 to 800 nm claim 1 , preferably 30 to 600 nm claim 1 , such as 40 to 400 nm claim 1 , in particular from 100 to 200 nm.4. The method according to claim 1 , wherein the amount of silica is 0.1 to 1.6 wt. % claim 1 , preferably 0.5 to 1.5 wt. % claim 1 , more preferably about 1.0 wt. % claim 1 , based on the weight of the polymer.5. The ...

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Номер записи: 69
14-01-2021 дата публикации

POLYETHYLENE TEREPHTHALATE (PET) AEROGEL

Номер: US20210009780A1
Автор: Duong Hai Minh, Le Duyen Khac, Nguyen Thanh Xuan, Phan Tien Nhan, Steven Salomo, Zhang Xiwen
Принадлежит:

A polyethylene terephthalate aerogel. There is provided a polyethylene terephthalate (PET) aerogel comprising a porous network of cross-linked recycled PET fibers, wherein the PET aerogel has a thermal conductivity of 0.030-0.050 W/m K. There is also provided a method of forming the PET aerogel. 1. A polyethylene terephthalate (PET) aerogel cors 1prising a porous network of cross-linked recycled PET fibers , wherein the PET aerogel has a thermal conductivity of 0.030-0.050 W/m K.21. The PET aerogel according to claim 1 , wherein the recycled PET fibers comprised in the PET aerogel are obtained from PET plastic bottles.3. The PET aerogel according to claim 1 , wherein the cross-linked recycled PET fibers comprised in the aerogel are cross-linked with a cross-linker selected from: tetraethoxysilane (TEOS) claim 1 , polyvinyl alcohol (PVA) claim 1 , glutaraldehyde (GA) claim 1 , methyltrimethoxysilane (MTMS) claim 1 , sodium silicate claim 1 , bentonite claim 1 , starch claim 1 , nanoclay claim 1 , or a combination thereof.4. The PET aerogel according to claim 3 , wherein the cross-linker is TEOS.5. The PET aerogel according to claim 3 , wherein the cross-linker is a combination of PVA and GA.6. The PET aerogel according to claim 1 , wherein the PET aerogel has a density of 0.007-0.450 g/cm.7. The PET aerogel according to claim 1 , wherein the PET aerogel has a compressive Young's modulus of ≤130.0 kPa.8. The PET aerogel according to claim 1 , wherein the PET aerogel is superhydrophobic and has a contact angle of 120-150°.9. A method of forming the PET aerogel according to claim 1 , the method comprising:hydrolysing recycled PET fibers to form hydrolysed recycled PET fibers, wherein the hydrolysing forms at least carboxylic groups on a surface of the hydrolysed recycled PET fibers;cross-linking the hydrolysed recycled PET fibers with a cross-linker;gelation of the cross-linked recycled PET fibers; anddrying to form the PET aerogel.10. The method according to claim 9 , ...

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Номер записи: 70
14-01-2021 дата публикации

METHOD AND FORMULATION FOR AN ISOCYANATE-FREE FOAM USING ISOCYANATE-FREE POLYURETHANE CHEMISTRY

Номер: US20210009781A1
Автор: Speer Drew V., Sun Yue
Принадлежит:

The presently disclosed subject matter is directed to a method of making a foam. The disclosed formulation has a first part with at least one multifunctional acrylate. The disclosed formulations have a second part with at least one non-isocyanate polyurethane oligomer derived from a reaction of at least one multifunctional cyclocarbonate and at least one first multifunctional amine, and a second multifunctional amine. The formulation may also have a blowing agent and at least one surfactant. 1. A method of making a foam , the method comprising: a first part comprising 25% to 70% of at least one multifunctional acrylate;', 30% to 50% of at least one non-isocyanate polyurethane oligomer derived from a reaction of at least one multifunctional cyclocarbonate and at least one first multifunctional amine, and', '15% to 40% of a second multifunctional amine;, 'a second part comprising, '5% to 35% of a blowing agent, wherein the blowing agent is included in at least one of the first part and the second part, and', '0.1% to 7% at least one surfactant, wherein the at least one surfactant is included in at least one of the first part and the second part;, 'providing a formulation comprisingcombining the first part and the second part of the formulation to create a froth; andcuring the froth to produce a foam;wherein the first part is separated from the second part.2. The method of claim 1 , wherein the foam has a density of less than or equal to 2 pounds per cubic foot.3. The method of claim 1 , wherein the foam has a compressive strength of 3 pounds to 10 pounds per square inch at 10% strain.4. The method of claim 1 , wherein the first part further comprises an epoxy compound claim 1 , at least one multifunctional cyclocarbonate claim 1 , and an anhydride compound.5. The method of claim 1 , wherein at least one of the first part and the second part is heated to a temperature of 25 to 60 degrees Celsius.6. The method of claim 1 , wherein the reaction of the at least one ...

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Номер записи: 71
03-02-2022 дата публикации

Perfected self-modelling padding, garment or support comprising said self-modelling padding, and manufacturing method thereof

Номер: US20220030995A1
Автор: Giuseppe Bigolin, Riccardo Perotto
Принадлежит: Selle Italia SRL

A self-modelling padding for garments or supports which has an elastomeric matrix having a cross-linked, three-dimensional open cell structure, and a self-modelling paste embedded in the elastomeric matrix is provided. The elastomeric matrix is configured to have a shape memory. The self-modelling paste has a plastic behavior.

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Номер записи: 72
15-01-2015 дата публикации

ROOM TEMPERATURE FOR CROSSLINKED FOAM

Номер: US20150013880A1
Автор: "OLeary Robert J.", Korwin-Edson Michelle L., Olang Fatemeh Nassreen, Quinn Robert Edwin
Принадлежит:

Foams for filling cavities and crevasses and for forming foamed products are provided. The latex foam may include an A-side containing a functionalized latex and a B-side that contains a crosslinking agent and optionally a non-functionalized latex. The A- and/or B-side contain a blowing agent package or components forming the blowing agent package. The blowing agent package may be the combination of two or more chemicals that when mixed together form a gas or a chemical compound that, when activated by heat or light, forms a gas. In an alternate embodiment, the latex foam includes a functionalized latex, an acid, and an encapsulated crosslinking agent and base. Alternatively, the spray latex foam may include a functionalized latex, a crosslinking agent, and an encapsulated dry acid and dry base. The encapsulating agent may be a protective, non-reactive shell that can be broken or melted at the time of application. 2. The method of claim 1 , the method further comprising positioning an interior member on said elastomeric foam.3. The method of claim 1 , wherein said crosslinking agent is a polyfunctional aziridine.4. The method of claim 3 , wherein said blowing agent is formed of an acid and a base claim 3 , wherein said first component includes said base when said second component includes said acid; and wherein said first component includes said acid when said second component includes said base claim 3 , said method further comprising the step of reacting said acid and said base to form a gas to initiate said foaming reaction.5. The method of claim 3 , wherein said acid is polyacrylic acid claim 3 , said base is sodium bicarbonate claim 3 , and said foam has a structure; and wherein said polyacrylic acid reacts with said sodium bicarbonate to form a gas as said polyacrylic acid further reacts with said crosslinking agent to become integrated with said foam structure.6. The method of claim 3 , wherein said base is sodium bicarbonate having a mean particle size from ...

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Номер записи: 73
03-02-2022 дата публикации

PROCESS AND COMPOSITION FOR THE PRODUCTION OF FLEXIBLE POLYURETHANE FOAM

Номер: US20220033603A1
Автор: Bender Jared Denis, Burdeniuc Juan Jesus, Emmrich-Smolczyk Eva, Mühlhaus Felix, Panitzsch Torsten, Paule Jacob
Принадлежит: EVONIK OPERATIONS GMBH

Disclosed are a process of producing a polyurethane foam product, a polyurethane foam product pre-mix, polyurethane foam product formulation, and a polyurethane foam product. The process of producing the polyurethane foam product includes contacting a halogen containing composition with a polyurethane foam product pre-mix. The polyurethane foam product pre-mix includes the halogen containing composition. The polyurethane foam product formulation includes a polyol component, an isocyanate component, and a halogen containing compound component. The polyurethane foam product is formed by the pre-mix having the halogen containing composition. 1. A polyurethane foam additive composition comprising at least one halogen containing compound.2. The polyurethane foam additive composition of claim 1 , wherein the at least one halogen containing compound is an acyl compound with a general formula [Cl—(CH)—CO]-A selected from the group consisting of:{'sub': 1', '36', '2', '1', '18, 'i) esters wherein A is a RO— group and where R=C-Calkyl group linear or branched, saturated or unsaturated, substituted or unsubstituted, and where the substituents are OH, a halogen, NH═, an ether moiety —OR′, an ester moiety —COOR″, or a urea moiety —NHCONH, and wherein R′ and R″ are C-Calkyl groups and x=1 and y=1;'}{'sub': 2', '2', 'n', '2', '2', 'n', '2', '3', 'n', '2', '3', 'n', '2', '2', 'n', '2', '3', 'm', '2', '2', 'n', '2', '3', 'm', '2', '3', 'n', '2', '2', 'm, 'ii) esters and ester-alcohols where A is a chemical group of general formula —O—[CH—CH—O]—H and x=1 and y=1 and n=1 to 700, or —O—[CH—CH—O]— and x=2 and y=1 and n=1 to 700, or —O—[CH—CH(CH)—O]—H and x=1 and y=1 and n=1 to 700, or —O—[CH—CH(CH)—O]— and x=2 and y=1 and n=1 to 700, or —O—[CH—CH—O]—[CH—CH(CH)—O]—H and x=1 and y=1 and n and m are independently from 1 to 700, or —O—[CH—CH—O]—[CH—CH(CH)—O]— and x=2 and y=1 and n and m are independently from 1 to 700, or —O—[CH—CH(CH)—O]—O—[CH—CH—O]—H and x=1 and y=1 and n and m are ...

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Номер записи: 74
03-02-2022 дата публикации

PUMPABLE, THERMALLY CURABLE AND EXPANDABLE PREPARATIONS

Номер: US20220033604A1
Автор: Kohlstrung Rainer, Rappmann Klaus
Принадлежит:

A thermally expandable preparation pumpable at application temperatures in the range of 50 to 120° C., is provided containing: at least one polymer selected from binary copolymers containing at least one monomer unit selected from vinyl acetate, (meth)acrylic acids, styrene and derivatives thereof, and terpolymers based on at least one first monomer selected from the monounsaturated or polyunsaturated hydrocarbons, and at least one second monomer selected from (meth)acrylic acids and derivatives thereof, and at least one third monomer selected from epoxy-functionalized (meth)acrylates, as well as combinations of the first two; at least one liquid polymer selected from liquid hydrocarbon resins, liquid polyolefins and liquid polymers based on one or more diene monomers; at least one peroxide; at least one thermally activatable blowing agent; and at least one adhesion promoter; as well as methods to stiffen/reinforce or seal structural components by application of the preparation. 1. A thermally expandable preparation which can be pumped at application temperatures in a range of 50° C. to 120° C. , and contains , in each case based on a total weight of the preparation: (a1) binary copolymers containing at least one monomer unit selected from vinyl acetate, (meth)acrylic acids, styrene and derivatives thereof, and', '(a2) terpolymers based on at least one first monomer selected from monounsaturated or polyunsaturated hydrocarbons, and at least one second monomer selected from (meth)acrylic acids and derivatives thereof, and at least one third monomer selected from epoxy-functionalized meth(acrylates); and combinations of (a1) and (a2);, '(a) 3 to 40 wt. % of at least one polymer, optionally comprising a peroxidically crosslinkable polymer, the at least one polymer being selected from (b1) liquid hydrocarbon resins;', '(b2) liquid polyolefins; and', '(b3) liquid polymers based on one or more diene monomers;, '(b) 1 to 40 wt. % of at least one liquid polymer selected ...

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Номер записи: 75
03-02-2022 дата публикации

COMPOSITIONS COMPRISING 1,2-DICHLORO-1,2-DIFLUOROETHYLENE FOR USE IN FOAM BLOWING APPLICATIONS

Номер: US20220033607A1
Автор: KONTOMARIS KONSTANTINOS, PETROV VIACHESLAV A, SIMONI LUKE DAVID, Wysong Ernest Byron
Принадлежит: THE CHEMOURS COMPANY FC, LLC

This invention relates to compositions comprising 1,2-dichloro-1,2-difluoroethylene (i.e., CFO-1112) and an additional component. The compositions described herein may be useful, for example, in foam blowing applications. 1. A process for preparing a thermoplastic polymer foam , the process comprising: i) 1,2-dichloro-1,2-difluoroethylene, and', 'ii) one or more compounds selected from 2-chloropropane, trans-1,2-dichloroethylene, n-propane, cyclopropane, n-butane, cyclobutane, iso-butane, n-pentane, cyclopentane, iso-pentane, neo-pentane, carbon dioxide, nitrogen, argon, water, methanol, ethanol, n-propanol, iso-propanol, dimethyl ether, ethyl methyl ether, diethyl ether, dimethoxymethane, methyl acetate, ethyl acetate, methyl formate, ethyl formate, ethylene oxide, propylene oxide, fluorinated epoxides, HFC-32, HFC-134a, HFC-134, HFC-152a, HFC-227ca, HFC-227ea, HFC-236ea, HFC-245ca, HFC-245eb, HFC-245cb, HFC-245ea, HFC-245fa, HFC-365mfc, HFC-43-10mee HFO-1234ye-E, HFO-1234ye-Z, HFO-1234yf, HFO-1234ze-E, HFO-1234ze-Z, HFO-1243zf, HFO-1336mzz-E, HFO-1336mzz-Z, HFO-1336yf, HFO-1336ze-E, HFO-1336ze-Z, HFO-1345mzz-E, HFO-1429mzy, HFO-1438ezy-E, HFO-1438ezy-Z, HFO-1438mzz-E, HFO-1438mzz-Z, HFO-153-10mzzy, HCFO-1224yd-E, HCFO-1224yd-Z, HCFO-1233xf, HCFO-1233zd-E, and HCFO-1233zd-Z, and, '(a) providing a foamable composition comprising a thermoplastic polymer and a blowing agent, wherein the blowing agent comprises'}(b) expanding the foamable composition to produce the thermoplastic polymer foam.210-. (canceled)11. The process of claim 1 , wherein the thermoplastic polymer is selected from the group consisting of a polystyrene homopolymer claim 1 , a polystyrene copolymer claim 1 , styrene-acrylonitrile copolymer claim 1 , and blends thereof.12. The process of claim 1 , wherein the process is performed at a pressure just before foaming of from about 100 psi to about 5000 psi.13. The process of claim 1 , further comprising extruding the foamable composition containing the ...

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Номер записи: 76
18-01-2018 дата публикации

FLAME RETARDANT POLY(ARYLENE ETHER)/POLYSTYRENE FOAMED MATERIAL AND ASSOCIATED METHOD OF MAKING AND ARTICLE

Номер: US20180016407A1
Автор: Krist Johan Maria, Landa Adrie
Принадлежит: Sabic Global Technologies B.V.

A foamed material includes specific amounts of a polystyrene, an organophosphate ester, and a poly(phenylene ether) or a poly(phenylene ether)-polysiloxane block copolymer or a combination thereof. The material is foamed with a C-Calkane blowing agent. The foamed material is useful as insulation in the construction of walls and ceilings. 1. A foamed material comprising , based on the total weight of the foamed material:45 to 82 weight percent of a poly(phenylene ether), a poly(phenylene ether)-polysiloxane block copolymer, or a combination thereof;10 to 47 weight percent of a polystyrene; and8 to 20 weight percent of an organophosphate ester;wherein the foamed material has a density of 30 to 100 kilograms per cubic meter, measured at 23° C.; [ the poly(phenylene ether), the poly(phenylene ether)-polysiloxane block copolymer, or the combination thereof,', 'the polystyrene, and', 'the organophosphate ester, 'melt blending in an extruder'}, 'to form a molten thermoplastic composition,', 'adding a blowing agent to the extruder at a rate of 2 to 10 weight percent based on the weight of the molten thermoplastic composition to form a pre-foamed molten thermoplastic composition, wherein the blowing agent is selected from the group consisting of propane, 2-methylpropane, n-butane, 2-methylbutane, n-pentane, neopentane, and combinations thereof, and', 'extruding the pre-foamed molten thermoplastic composition from the extruder to form the foamed material., 'wherein the foamed material is the product of a process comprising'}2. The foamed material of claim 1 , wherein the poly(phenylene ether) claim 1 , the poly(phenylene ether)-polysiloxane block copolymer claim 1 , or the combination thereof has an intrinsic viscosity of 0.29 to 0.45 deciliter per gram claim 1 , measured at 25° C. in chloroform.3. The foamed material of claim 1 , wherein the poly(phenylene ether) claim 1 , the poly(phenylene ether)-polysiloxane block copolymer claim 1 , or the combination thereof consists of ...

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Номер записи: 77
18-01-2018 дата публикации

Polypropylenes Having Balanced Strain Hardening, Melt Strength, and Shear Thinning

Номер: US20180016414A1
Автор: Pehlert George J., ZHAO Mosha H.
Принадлежит:

A composition comprising the reaction product of a polypropylene comprising at least 50 mol % propylene, and having a molecular weight distribution (Mw/Mn) greater than 6, a branching index (g′) of at least 0.97, and a melt strength greater than 10 cN determined using an extensional rheometer at 190° C.; and within the range from 0.01 to 3 wt % of at least one organic peroxide, by weight of the polypropylene and organic peroxide. Such hyperbranched polypropylenes are useful in films, foamed articles, and thermoformed articles. 1. A composition comprising the reaction product of:{'sub': 'vis', 'a polypropylene comprising at least 50 mol % propylene, and having a molecular weight distribution (Mw/Mn) greater than 6, a branching index (g′) of at least 0.97, and a melt strength greater than 10 cN determined using an extensional rheometer at 190° C.; and'}within the range from 0.01 to 3 wt % of at least one organic peroxide, by weight of the polypropylene and organic peroxide.2. (canceled)3. (canceled)4. The composition of wherein the polypropylene has an MWD (Mw/Mn) within the range from 6 to 18.5. The composition of claim 1 , wherein the polypropylene has a melt strength within the range from 10 cN to 40 cN.6. The composition of claim 1 , wherein the polypropylene has a Peak Extensional Viscosity (non-annealed) within a range from 10 kPa·s to 60 kPa·s at a strain rate of 0.01/sec (190° C.).7. The composition of claim 1 , wherein the polypropylene has a heat distortion temperature of greater than or equal to 100° C. claim 1 , determined according to ASTM D648 using a load of 0.45 MPa (66 psi).8. The composition of claim 1 , wherein the polypropylene comprises at least 90 mol % propylene.9. The composition of claim 1 , wherein the polypropylene has a melt flow rate (MFR) within the range from 0.1 to 100 g/10 min claim 1 , determined according to ASTM D1238 Condition L (230° C./2.16 kg).10. The composition of claim 1 , wherein the polypropylene has an Mz/Mw value of less ...

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Номер записи: 78
16-01-2020 дата публикации

Method for Preparing Porous Scaffold for Tissue Engineering, Cell Culture and Cell Delivery

Номер: US20200016294A1
Автор: Catherine Le Visage, Didier Letourneur
Принадлежит: Institut National de la Sante et de la Recherche Medicale INSERM, Université de Paris

The present invention relates to a method for preparing a porous scaffold for tissue engineering. It is another object of the present invention to provide a porous scaffold obtainable by the method as above described, and its use for tissue engineering, cell culture and cell delivery. The method of the invention comprises the steps consisting of: a) preparing an alkaline aqueous solution comprising an amount of at least one polysaccharide, an amount of a cross-linking agent and an amount of a porogen agent b) transforming the solution into a hydrogel by placing said solution at a temperature from about 4° C. to about 80° C. for a sufficient time to allow the cross-linking of said amount of polysaccharide and c) submerging said hydrogel into an aqueous solution d) washing the porous scaffold obtained at step c).

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Номер записи: 79
17-01-2019 дата публикации

Method For Preparing Acrylic Copolymer, Acrylic Copolymer And Resin Composition Comprising The Copolymer

Номер: US20190016838A1
Автор: Kim Yoon Ho, Lee Chang No, Lee Kwang Jin, Nam Sang Il, Sun Kyung Bok
Принадлежит: LG CHEM, LTD.

Provided is a method for preparing an acrylic copolymer, and more specifically, provided are a method for preparing an acrylic copolymer including: i) adding and polymerizing 50 to 80 parts by weight of a methyl (meth)acrylate monomer and 10 to 49 parts by weight of a C2-C12 alkyl (meth) acrylate monomer, based on 100 parts by weight of a total monomer content, in a reactor (S1); and ii) adding and polymerizing 1 to 10 parts by weight of the methyl (meth) acrylate monomer, more than 0.01 part by weight to less than 1 part by weight of an acrylic cross-linking agent, and a surfactant, based on 100 parts by weight of the total monomer content, in which a polymerization conversion ratio of the polymerization in step (S1) is 70% to 90% (S2), an acrylic copolymer prepared therefrom, and a resin composition including the same. 1. A method for preparing an acrylic copolymer comprising:i) adding and polymerizing 50 to 80 parts by weight of a methyl (meth)acrylate monomer and 10 to 49 parts by weight of a C2-C12 alkyl (meth)acrylate monomer, based on 100 parts by weight of a total monomer content, in a reactor (Si); andii) adding and polymerizing 1 to 10 parts by weight of the methyl (meth)acrylate monomer, more than 0.01 part by weight to less than 1 part by weight of an acrylic cross-linking agent, and a surfactant, based on 100 parts by weight of the total monomer content, in which a polymerization conversion ratio of the polymerization in (S1) is 70% to 90%.2. The method of claim 1 , wherein the acrylic cross-linking agent is at least one selected from the group consisting of pentaerythritol diacrylate claim 1 , pentaerythritol triacrylate claim 1 , and pentaerythritol tetraacrylate.4. The method of claim 1 , wherein the acrylic copolymer polymerized in (S1) has a weight average molecular weight of 6 claim 1 ,000 claim 1 ,000 g/mol to 7 claim 1 ,000 claim 1 ,000 g/mol.5. The method of claim 1 , wherein the acrylic copolymer polymerized in (S2) has a weight average ...

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Номер записи: 80
17-01-2019 дата публикации

LOW DENSITY CLOSED CELL COMPOSITE AEROGEL FOAM AND ARTICLES INCLUDING SAME

Номер: US20190016957A1
Автор: Markesbery Michael Glenn, Nash Jeffrey, Venna Rithvik
Принадлежит:

A composite foam is provided having silica aerogel particles dispersed in a closed cell polymeric foam. The silica aerogel particles are included in a volume fraction between 2 and 60%, and the composite foam has a thermal conductivity of 40 kW/mK or less and a density of 60 kg/mor less. In another embodiment, a composite foam is provided having a perforated closed cell polymeric foam and 2-60% hydrophobic silica aerogel particles by volume with a particle size distribution of 1 to 50 where the composite foam has a thermal conductivity of 30 kW/mK or less, a density of 20-45 kg/m, and an air permeability of 20-40 cubic feet per minute. 1. A composite foam comprising:silica aerogel particles dispersed in a closed cell polymeric foam,{'sup': '3', 'wherein the composite foam includes the silica aerogel particles in a volume fraction between 2 and 60%, and has a thermal conductivity of 40 kW/mK or less and a density of 60 kg/mor less.'}2. The composite foam of claim 1 , wherein the density is 50 kg/mor less.3. The composite foam of claim 1 , wherein the density is 20-45 kg/m.4. The composite foam of claim 1 , wherein the density is 30-40 kg/m.5. The composite foam of claim 1 , wherein the thermal conductivity is 30 kW/mK or less.6. The composite foam of claim 1 , wherein the silica aerogel particles are hydrophobic.7. The composite foam of claim 6 , wherein a water absorption of the composite foam is 0.1% by volume or less.8. The composite foam of claim 1 , wherein the composite foam has an average thickness between 1.5 to 6 mm.9. The composite foam of claim 1 , wherein the composite foam includes perforations having a diameter of 1 mm or less.10. The composite foam of claim 1 , wherein the composite foam is perforated with an air permeability of 5-60 cubic feet per minute.11. The composite foam of claim 1 , wherein the silica aerogel particles are included in a volume fraction from 3-40%.12. The composite foam of claim 1 , wherein the silica aerogel particles have a ...

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Номер записи: 81
16-01-2020 дата публикации

EXPANDABLE POROUS ORGANIC POLYMER-BASED HYDROGEN ION CONDUCTIVE MATERIAL AND METHOD FOR PREPARING SAME

Номер: US20200017630A1
Автор: HONG Chang Seop, KANG Dong Won
Принадлежит: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

The present invention relates to a porous organic polymer-based hydrogen ion conductive material and a method for preparing the same. More specifically, the present invention relates to a method for preparing a porous organic polymer (POP)-based material with high proton conductivity that is applicable to a membrane electrode assembly (MEA) of a proton exchange membrane fuel cell (PEMFC). The porous organic polymer-based proton conductive material of the present invention can be prepared in an easy and simple manner by microwave treatment and acid treatment requiring short processing time and low processing cost. In addition, the porous organic polymer-based proton conductive material of the present invention can be developed into a highly proton conductive material having the potential to replace Nafion through a simple post-synthesis modification. Therefore, the porous organic polymer-based proton conductive material of the present invention is suitable for use in a proton exchange membrane fuel cell. 1. A porous organic polymer-based framework containing sulfonic acid groups , represented by Formula 1ES:{'br': None, 'sub': 11', '6.005', '0.995', '2.985', '0.995', 'n', '2, '[CHO.SOH].2.61HO\u2003\u2003[Formula 1ES]'}wherein n is an integer from 1 to 100.2. The porous organic polymer-based framework according to claim 1 , wherein the porous organic polymer-based framework has a proton conductivity of 9.00×10S/cm to 2.00×10S/cm in the temperature range of 30° C. to 80° C. at a relative humidity of 90%.3. The porous organic polymer-based framework according to claim 2 , wherein the porous organic polymer-based framework has a proton conductivity of 1.00×10S/cm to 2.00×10S/cm at a temperature of 80° C. and a relative humidity of 90%.4. A method for preparing a porous organic polymer-based framework containing sulfonic acid groups represented by Formula 1ES:{'br': None, 'sub': 11', '6.005', '0.995', '2.985', '0.995', 'n', '2, '[CHO.SOH].2.61HO\u2003\u2003[Formula 1ES ...

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Номер записи: 82
16-01-2020 дата публикации

Process for producing isocyanate-based foam construction boards

Номер: US20200017654A1
Автор: Chunhua Yao, John B. Letts, Michael J. Hubbard
Принадлежит: Firestone Building Products Co LLC

A process for producing a polyurethane or polyisocyanurate construction board, the process comprising (i) providing an A-side reactant stream that includes an isocyanate containing compound; (ii) providing a B-side reactant stream that includes a polyol and a physical blowing agent, where the physical blowing agent includes pentane, butane, and optionally a blowing agent additive that has a Hansen Solubility Parameter (δt) that is greater than 17 MPa−0.5; and (iii) mixing the A-side reactant stream with the B-side reactant stream to produce a reaction mixture.

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Номер записи: 83
16-01-2020 дата публикации

POROUS CROSSLINKED HYDROPHILIC POLYMERIC MATERIALS PREPARED FROM HIGH INTERNAL PHASE EMULSIONS CONTAINING HYDROPHILIC POLYMERS

Номер: US20200017655A1
Автор: Li Naihong, Song Wenjia, Wu Jen-Chieh
Принадлежит:

The present disclosure relates to a process for preparing porous crosslinked hydrophilic polymeric materials. Such materials can be prepared from oil-in-water high internal phase emulsions (HIPEs) containing hydrophilic polymers. The oil-in-water high internal phase emulsion (HIPE) comprises two phases: an external continuous aqueous phase containing at least one hydrophilic polymer; and an internal oil phase. The hydrophilic polymer is crosslinked to form a three-dimensionally crosslinked polymer matrix. The internal oil phase is subsequently removed to obtain a porous crosslinked hydrophilic polymeric material. The present invention also relates to porous crosslinked hydrophilic polymeric materials prepared by such a process. 1. A process for the preparation of a porous crosslinked hydrophilic polymeric material comprising:forming an oil-in-water high internal phase emulsion (HIPE) from an oil phase and an aqueous phase, wherein the aqueous phase comprises at least one hydrophilic polymer and at least one crosslinker capable of crosslinking with the at least one hydrophilic polymer;causing the crosslinking of the at least one hydrophilic polymer to occur for creating a first crosslinked polymer network; andremoving the oil phase from the first crosslinked polymer network to obtain a porous crosslinked hydrophilic polymeric material.2. The process of claim 1 , wherein a volume ratio between the oil phase and aqueous phase is between the range of 70:30 to 99:1 claim 1 , an amount of the at least one hydrophilic polymer is between about 33% to about 100% by weight of a total amount of the network-forming polymers claim 1 , and an amount of the at least one crosslinker is between about 0.1% to 50% by weight of the amount of the at least one hydrophilic polymer.3. The process of or claim 1 , further comprising forming a second crosslinked polymer network within the aqueous phase claim 1 , by copolymerizing at least one water soluble monofunctional ethylenically ...

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Номер записи: 84
21-01-2021 дата публикации

Cross-Linked Polyolefin Separator and Manufacturing Method Thereof

Номер: US20210017351A1
Автор: Bae Won-Sik, Lee Joo-Sung, Ryu Bi-Oh
Принадлежит: LG CHEM, LTD.

A method for manufacturing a crosslinked polyolefin separator and the crosslinked polyolefin separator obtained therefrom are provided. The method includes non-grafted polyolefin having a weight average molecular weight of 300,000 or more and silane-grafted polyolefin having a weight average molecular weight of 300,000 or more. The method minimizes gel formation, a side reaction occurring in an extruder during the manufacture of a-the separator, and provides a-the separator having a uniform surface. 1. A method for manufacturing a crosslinked polyolefin separator , comprising:{'b': '1', '(S) mixing non-grafted polyolefin having a weight average molecular weight of 300,000 or more, silane-grafted polyolefin having a weight average molecular weight of 300,000 or more, a diluting agent, an initiator, an alkoxysilane compound containing a carbon-carbon double bonded group and a crosslinking catalyst to an extruder and then carrying out reactive extrusion at 200° C. or higher to obtain a silane-grafted polyolefin composition;'}{'b': '2', '(S) molding and orienting the reactive extruded silane-grafted polyolefin composition in the form of a sheet;'}{'b': '3', '(S) extracting the diluting agent from the oriented sheet to obtain a porous membrane;'}{'b': '4', '(S) thermally fixing the porous membrane; and'}{'b': '5', '(S) crosslinking the porous membrane in the presence of water,'}wherein a content of the alkoxysilane compound containing the carbon-carbon double bonded group is 0.01-2 parts by weight based on 100 parts by weight of a total weight of the non-grafted polyolefin, silane-grafted polyolefin and the diluting agent.2. The method for manufacturing the crosslinked polyolefin separator according to claim 1 , wherein a weight ratio of the non-grafted polyolefin to the silane-grafted polyolefin is 90:10-20:80.3. The method for manufacturing the crosslinked polyolefin separator according to claim 1 , wherein the non-grafted polyolefin has a weight average molecular ...

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Номер записи: 85
24-01-2019 дата публикации

POLYOLEFIN ELASTOMER COMPOSITIONS AND METHODS OF MAKING THE SAME

Номер: US20190021441A1
Автор: Gopalan Krishnamachari, Herd-Smith Roland, Ji Gending, Lenhart Robert J.
Принадлежит: COOPER-STANDARD AUTOMOTIVE INC.

An elastomeric article is provided that includes a composition having a silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm. The elastomeric article can exhibit a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.). The silane-crosslinked polyolefin elastomer can include a first polyolefin having a density less than 0.86 g/cm, a second polyolefin having a crystallinity less than 40%, a silane crosslinker, a grafting initiator, and a condensation catalyst. 1. A silane-crosslinked polyolefin elastomer blend comprising:{'sup': '3', 'a first polyolefin having a density less than 0.86 g/cm;'}a second polyolefin having a percent crystallinity less than 40%;a silane crosslinker,{'sup': '3', 'wherein the silane-crosslinked polyolefin elastomer blend exhibits a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.) and wherein the silane-crosslinked polyolefin elastomer blend has a density less than 0.90 g/cm.'}2. The silane-crosslinked polyolefin elastomer blend of further comprising a microencapsulated foaming agent.3. The silane-crosslinked polyolefin elastomer blend of claim 1 , wherein the density is less than 0.70 g/cm.4. The silane-crosslinked polyolefin elastomer blend of further comprising a foaming agent.5. The silane-crosslinked polyolefin elastomer blend of claim 1 , wherein the density is less than 0.60 g/cm.6. The silane-crosslinked polyolefin elastomer blend of claim 1 , wherein the compression set is from about 15.0% to about 35.0% claim 1 , as measured according to ASTM D 395 (22 hrs @ 70° C.).7. The silane-crosslinked polyolefin elastomer blend of claim 1 , wherein the first polyolefin comprises an ethylene-octene copolymer from about 60 wt % to about 97 wt %.8. The silane-crosslinked polyolefin elastomer blend of claim 1 , wherein the second polyolefin comprises a polypropylene homopolymer from about 10 wt % to about 35 wt % and/or ...

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Номер записи: 86
25-01-2018 дата публикации

Polyimide and/or polyamideimide porous body and method for manufacturing same, method for separation and/or adsorption, separation material, adsorption material, filter media, laminate, and filter device

Номер: US20180021739A1
Автор: Jun Koshiyama, Masanori Ichikawa, Mitsuharu TOBARI, Tsukasa Sugawara
Принадлежит: Tokyo Ohka Kogyo Co Ltd

Provided are a polyimide and/or polyamideimide porous body and method for manufacturing same, method for separation and/or adsorption using the porous body, a separation material, adsorption material, and filter media composed of the porous body, a laminate, and a filter device. A polyimide and/or polyamideimide porous body in which the polyimide and/or polyamideimide has at least one group selected from the group consisting of a carboxy group, a salt-type carboxy group, and a —NH— bond.

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Номер записи: 87
25-01-2018 дата публикации

PROCESS FOR THE PRODUCTION OF EXPANDABLE VINYL AROMATIC POLYMER GRANULATE HAVING DECREASED THERMAL CONDUCTIVITY

Номер: US20180021991A1
Автор: KONDRATOWICZ Filip Lukasz, MIKOSZEK-OPERCHALSKA Marzena, ROJEK Piotr, UTRATA Kamil
Принадлежит:

The invention relates to an extrusion process for the production of expandable vinyl aromatic polymer granulate comprising mixing first and second additives with first and second polymer components, respectively, in dedicated mixers. 1. Extrusion process for the production of expandable vinyl aromatic polymer granulate comprising the steps:i) feeding a first polymer component comprising vinyl aromatic polymer into a first mixer;ii) feeding a first additive component a) into the first mixer, to produce a first mixture from the first polymer component and the first additive component;iii)feeding a second polymer component b) comprising vinyl aromatic polymer into a second mixer;iv) feeding a second additive component b) into the second mixer, to produce a second mixture from the second polymer component and the second additive component, wherein the processing conditions in the second mixer are more severe than the processing conditions in the first mixer, by providing higher shear force;v) combining the first and second mixtures, to produce a third mixture;vi) injecting blowing agent c) into the third mixture, to produce a fourth mixture;vii)mixing the fourth mixture; and viii) pelletizing the fourth mixture, to obtain the granulate,wherein the process comprises an extrusion.2. The process of claim 1 , wherein the combining v) is a feeding of the second mixture into the first mixer claim 1 , to produce the third mixture claim 1 ,preferably wherein the combining is in the first mixer, to produce the third mixture.3. The process of or claim 1 , wherein the first mixer is an extruder or a static mixer claim 1 , preferably a co-rotating twin screw extruder.4. The process of any one of the preceding claims claim 1 , wherein the temperature in the first mixer is in the range of 100 to 250° C. claim 1 , more preferably 150 to 230° C.5. The process of any one of the preceding claims claim 1 , wherein the second mixer is an extruder or a static mixer claim 1 , preferably a co ...

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Номер записи: 88
26-01-2017 дата публикации

Monolithic, super heat-insulating, organic aerogel composition preparation method, said composition, and the use thereof

Номер: US20170022345A1
Автор: Benjamin Swoboda, Bruno Dufour, Cedric HUILLET, Florian FANNECHERE, Nadine Poupa
Принадлежит: HUTCHINSON SA

The invention relates to a process for preparing a gelled, dried composition forming a monolithic aerogel with a heat conductivity of less than or equal to 40 mW·m −1 ·K −1 and derived from a resin of polyhydroxybenzene(s) and formaldehyde(s), to this aerogel composition and to the use thereof. This process comprises: a) polymerization in an aqueous solvent of said polyhydroxybenzene(s) and formaldehyde(s) in the presence of an acidic or basic catalyst, to obtain a solution based on the resin, b) gelation of the solution obtained in a) to obtain a gel of the resin, and c) drying of the gel to obtain a dried gel. According to the invention, step a) is performed in the presence of a cationic polyelectrolyte dissolved in this solvent, and the process also comprises a step d) of heat treatment under inert gas of the dried gel obtained in step c) at temperatures of between 150° C. and 500° C. to obtain the non-pyrolyzed aerogel whose heat conductivity is substantially unchanged, even after exposure to a humid atmosphere.

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Номер записи: 89
10-02-2022 дата публикации

POROUS MEMBRANES FOR HIGH PRESSURE FILTRATION

Номер: US20220040646A1
Автор: Di Nicolo Emanuele
Принадлежит:

The present invention relates to a porous membrane suitable for use in high pressure filtration method. 115.-. (canceled)16. A method for purifying a fluid containing at least one contaminant , said method comprising the steps of(i) providing a fluid containing at least one contaminant;(ii) providing a membrane [membrane (PP)] comprising at least one porous layer [layer (PP)] comprising at least one polyphenylene polymer [polymer (PP)];(iii) contacting said fluid containing at least one contaminant and said membrane (PP) by applying a pressure higher than 1 bar to said fluid; and(iv) recovering the fluid free from said at least one contaminant.17. The method according to claim 16 , wherein said membrane (PP) comprises said layer (PP) as the only layer or said membrane (PP) is a multi-layered membrane.22. The method according to claim 18 , wherein said polymer (PP) comprises at least about 30 mole percent of repeating units (R).25. The method according to claim 18 , wherein said polymer (PP) comprises at least about 40 mole percent repeat units (R).26. The method according to claim 16 , wherein said method is for purifying non-drinkable water claim 16 , said fluid is saline water or brackish water claim 16 , said contaminant is the salts content dissolved into said fluid claim 16 , and said membrane (PP) is a multi-layered membrane comprising (I) a substrate layer claim 16 , (II) an outer layer consisting of aromatic polyamides and (Ill) the layer (PP) claim 16 , said layer (PP) being interposed between said substrate layer and said outer layer.27. The method according to claim 16 , wherein said fluid containing at least one contaminant is a liquid phase or a gas phase.28. The method according to claim 16 , wherein said membrane (PP) is obtained from a liquid composition [composition (C)] comprising said polymer (PP) in an amount of from 7 to less than 60 wt. % based on the total weight of said composition (C) or a solid composition [composition (C)] comprising said ...

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Номер записи: 90
10-02-2022 дата публикации

POROUS MEMBRANES FOR HIGH PRESSURE FILTRATION

Номер: US20220040647A1
Автор: Di Nicolo Emanuele
Принадлежит:

The present invention relates to a porous membrane suitable for use in high pressure filtration method. 115-. (canceled)16. A method for purifying a fluid containing at least one contaminant , said method comprising the steps of(I) providing a fluid containing at least one contaminant;(II) providing a membrane [membrane (PSP)] comprising at least one porous layer [layer (PSP)] comprising at least one aromatic sulfone polymer [polymer (SP)] and at least one polyphenylene polymer [polymer (PP)];(III) contacting said fluid containing at least one contaminant and said membrane (PSP) by applying a pressure higher than 1 bar to said fluid; and(IV) recovering the fluid free from said at least one contaminant.171. The method according to claim , wherein said membrane (PSP) comprises said layer (PSP) as the only layer or said membrane (PSP) is a multi-layered membrane.181. The method according to claim , wherein said polymer (SP) is a polymer comprising at least one group of formula —Ar—SO—Ar′— [recurring units (R)] , wherein Ar and Ar′ , equal to or different from each other , are aromatic groups , and wherein more than 50% by moles of the recurring units of said polymer (SP) are connected by ether linkages in the main chain.20. The method according to claim 18 , wherein said polymer (SP) is selected from poly(phenylene sulfone) polymers [polymers (PPSU)] claim 18 , poly(sulfone) polymers [polymers (PSU)] and poly(ether sulfone) polymers [polymers (PESU)].261. The method according to claim claim 18 , wherein said method is for purifying non-drinkable water claim 18 , said fluid is saline water or brackish water claim 18 , said contaminant is the salts content dissolved into said fluid claim 18 , and said membrane (PSP) is a multi-layered membrane comprising (I) a substrate layer claim 18 , (II) an outer layer consisting of aromatic polyamides and (III) the layer (PSP) claim 18 , said layer (PSP) being interposed between said substrate layer and said outer layer.271. The ...

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Номер записи: 91
17-04-2014 дата публикации

Method for producing a foamed material,composition in the form of an emulsion used in said method, and foamed material that can be obtained from said method

Номер: US20140107239A1
Автор: Agnes Dominika Chalbi, Diana Engelen, Elena Khazova, Reinhard Strey, Stefan Lindner, Thomas Sottmann, Wolfgang Friederichs
Принадлежит: Bayer Intellectual Property GmbH

The present invention relates to a process for producing a foamed material, wherein a composition in the form of emulsion with a matrix-forming component, a surfactant component and a near-critical or supercritical blowing agent component is submitted to a lowering of pressure. The blowing agent component further comprises a hydrophobic co-component, which is soluble in supercritical CO 2 at a pressure of ≧150 bar, is insoluble in subcritical CO 2 at a pressure of ≦40 bar and is insoluble in the matrix-forming component and furthermore is present in a proportion from ≧3 wt % to ≦35 wt % of the blowing agent component. It further relates to a composition in the form of emulsion to be used herein and a foamed material obtainable by the process according to the invention.

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Номер записи: 92
10-02-2022 дата публикации

METHODS OF MANUFACTURING ARTICLES UTILIZING FOAM PARTICLES

Номер: US20220040916A1
Автор: Constantinou Jay, Doremus Harleigh, Folgar Luis, Kvamme Brandon, Schiller Denis
Принадлежит:

Methods for manufacturing articles of footwear are provided. In various aspects, the methods comprise utilizing additive manufacturing methods with foam particles. In some aspects, the disclosed methods comprise selectively depositing a binding material on foam particles in a target area such that the binding material coats at least a portion of defining surfaces of the foam particles with the binding material. The binding material is then cured to affix foam particles in the target area to one another. In various aspects, the disclosed methods can be used to manufacturer articles with sub-regions that differential levels of affixing between the foam particles, and thereby resulting in sub-regions with different properties such as density, resilience, and/or flexural modulus. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure. 1. An article made by a method according to the method comprising:arranging a plurality of foam particles, wherein the arranged plurality of foam particles comprises a thermoplastic elastomer material, and wherein the arranged plurality of foam particles has a number average particle size of about 0.3 millimeters to about 10 millimeters in a longest dimension;depositing a binding material in a binding material target area, wherein the binding material target area comprises a portion of the arranged plurality of foam beads, and wherein the depositing coats at least a portion of defining surfaces of the portion of the arranged plurality of foam particles with the binding material, and wherein the binding material comprises a thermal energy absorber, which is an infrared energy absorber; andcuring deposited binding material coating at least a portion of the defining surfaces of the portion of the arranged plurality of foam particles within the binding material target area, wherein curing comprises affixing a portion of the arranged plurality of ...

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Номер записи: 93
24-01-2019 дата публикации

DRUG DELIVERY DEVICE AND ITS METHOD OF MANUFACTURE

Номер: US20190022233A1
Автор: Lai Wing Fu, Rogatch Andrei
Принадлежит:

The invention relates to a drug delivery device adapted for carrying and delivering both hydrophilic and lipophilic drug molecules. The drug delivery device includes a porous body for adsorption of drug molecules, the body including a plurality of microspheres, and a hydrogel forming cross-links connecting the plurality of microspheres. 1. A drug delivery device adapted for carrying and delivering both hydrophilic and lipophilic drug molecules , comprising: a plurality of microspheres, and', 'a hydrogel forming cross-links connecting the plurality of microspheres., 'a porous body for adsorption of drug molecules, comprising2. The drug delivery device of claim 1 , wherein the microspheres each contains one or more acrylate groups.3. The drug delivery device of claim 2 , wherein the microspheres are formed by trimethylolpropane ethoxylate triacrylate claim 2 , trimethylolpropane triacrylate claim 2 , or their derivative.4. The drug delivery device of claim 2 , wherein the microspheres are poly(trimethylolpropane ethoxylate triacrylate) microspheres.5. The drug delivery device of claim 1 , wherein the hydrogel is formed by a starch-based derivative modified with a methacrylate source.7. The drug delivery device of claim 1 , wherein the drug delivery device is adapted for simultaneous delivery of at least one type of hydrophilic drug molecules and at least one type of lipophilic drug molecules.8. The drug delivery device of claim 1 , wherein the drug delivery device is adapted for simultaneous delivery of at least two different types of drugs molecules with different aqueous solubility.9. The drug delivery device of claim 1 , further comprising at least one type of hydrophilic drug molecules adsorbed on the body.10. The drug delivery device of claim 1 , further comprising at least one type of lipophilic drug molecules adsorbed on the body.11. The drug delivery device of claim 1 , further comprising at least one type of lipophilic drug molecules and at least one type of ...

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Номер записи: 94
25-01-2018 дата публикации

PROCESSING AIDS FOR USE IN MANUFACTURE EXTRUDED POLYSTYRENE FOAMS USING LOW GLOBAL WARMING POTENTIAL BLOWING AGENTS

Номер: US20180022883A1
Автор: Annan Nikoi, Boudreaux Chase J., Brammer S. Thomas, Breindel Raymond Marshall, Delaviz Yadollah, Fabian Barbara, Han Xiangmin
Принадлежит:

A foamable polymeric mixture is provided that includes a polymer composition and at least one blowing agent. The blowing agent may comprise any blowing agents known not to deplete the ozone or increase the prevalence of global warming, such as CO, HFO, HFC and mixtures thereof. The foamable polymeric mixture may further includes at least one processing aid comprising an organic phase changing material. The inventive foamable mixture is capable of processing at a pressure range of 800 to 1200 psi (5.5 to 8.3 MPa). 1. A foamed insulation product comprising: polystyrene;', 'a blowing agent composition comprising carbon dioxide and at least one of hydrofluoroolefins and hydrofluorocarbons, and', 'from 0.05 to 3 wt. % of an organic phase changing material, based upon the weight of the polymeric foam composition, wherein the organic phase changing material has a transition temperature from liquid to solid at a temperature from −5 to 60° C.;, 'a polymeric foam composition comprisingwherein the foamed insulation product has an insulation R-value per inch of between 4 and 7.2. The foamed insulation product of claim 1 , wherein the organic phase changing material comprises at least one of a fatty acid ester and a wax.3. The foamed insulation product of claim 2 , wherein the organic phase changing material comprises a synthetic beeswax.4. The foamed insulation product of claim 1 , wherein the organic phase changing material is microencapsulated.5. The foamed insulation product of claim 4 , wherein the organic phase changing material is microencapsulated by a polymer material comprising one or more of melamine formaldehyde claim 4 , urea formaldehyde claim 4 , and acrylate copolymer resins.6. The foamed insulation product of claim 1 , further comprising at least one infrared attenuating agent.7. The foamed insulation product of claim 1 , wherein the foamed insulation product is monomodal.8. The foamed insulation product of claim 1 , wherein the foamed insulation product has a ...

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Номер записи: 95
25-01-2018 дата публикации

POLYESTER POLYOL COMPOSITIONS CONTAINING HFO-1336MZZM (Z)

Номер: US20180022884A1
Автор: Bogdan Mary C., GROSSMAN RONALD S., Ling Yiu K., Williams David J., Yu Bin
Принадлежит:

Blends, polyol premix compositions, methods of forming such compositions, foamable compositions using the premix compositions, methods of preparing foams containing the premix compositions, and foams made using the premix compositions are described. The polyol premix composition includes a polyester polyol; halogenated olefin blowing agent; and a distribution-enhancing component. In the polyol premix composition, the blowing agent, the polyester polyol, and the distribution-enhancing component form a substantially uniform composition. 1. A polyol premix composition comprising:a halogenated olefin blowing agent;a polyester polyol, anda distribution enhancing component comprising at least one organic compound having from 1 to 40 carbon atoms, said at least one organic compound being present in the premix in amount effective to enhance the ability of said halogenated blowing agent and said polyol to form a stable, substantially uniform blend that remains as a substantially uniform mixture when stored for a period of four (4) months under ambient conditions.2. The polyol premix composition of wherein the distribution-enhancing component has one or more hydroxyl groups and 1 to 25 carbon atoms.3. The polyol premix composition of wherein the distribution-enhancing component comprises alcohols claim 2 , glycols claim 2 , ethers claim 2 , acetals claim 2 , benzenes claim 2 , ketones claim 2 , chlorinated solvents claim 2 , carbonates claim 2 , solvents and surfactants.4. The polyol premix composition of wherein the halogenated olefin blowing agent comprises cis-1 claim 3 ,1 claim 3 ,1 claim 3 ,4 claim 3 ,4 claim 3 ,4-hexafluorobut-2-ene.5. The polyol premix composition of wherein the distribution-enhancing component comprises one or more of non-cyclic alcohols having 1 to 10 carbon atoms claim 1 , cyclic alcohols having 6 to 40 carbon atoms claim 1 , alkylphenols and alkylphenol ethoxylates claim 1 , dipropylene glycol claim 1 , diisopropylene glycol claim 1 , dipropylene ...

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Номер записи: 96
25-01-2018 дата публикации

POLYURETHANE FOAM-FORMING COMPOSITIONS, METHODS OF MAKING LOW DENSITY FOAMS USING SUCH COMPOSITIONS, AND FOAMS FORMED THEREFROM

Номер: US20180022885A1
Автор: Pike Timothy, Riddle Kenneth, ROMERO Richard, Younes Usama
Принадлежит:

Disclosed are polyurethane foam-forming compositions with a phase stable isocyanate-reactive composition that includes a halogenated olefin blowing agent that has low or no ozone depletion potential and low global warming potential. Such polyurethane foam-forming compositions are suitable for spray application to produce polyurethane foams that are believed to exhibit good fire resistance properties, low smoke generation and low or no scorch due to reduced exotherm, thereby making them particularly suitable for use, for example, as relatively thick wall and/or roof insulation. 1. A polyurethane foam-forming composition comprising: (1) at least 50% by weight, based on the total weight of isocyanate-reactive components in the isocyanate-reactive composition, of an aromatic polyester polyol;', '(2) water; and', {'sub': 2', '6, '(3) a Cto Chalogenated olefin,'}], '(a) an isocyanate-reactive composition comprisingwherein the isocyanate-reactive composition exhibits no visible cloudiness or gels after aging the isocyanate-reactive composition for 7 days at 50° C.; and(b) a polyisocyanate.2. The foam-forming composition of claim 1 , wherein the isocyanate-reactive composition comprises at least 50% by weight claim 1 , based on the total weight of isocyanate-reactive components in the isocyanate-reactive composition claim 1 , of a phthalic anhydride based polyester polyol.3. The foam-forming composition of claim 2 , wherein the phthalic anhydride based polyester polyol comprises a mixture of two or more phthalic anhydride based polyester polyols comprising:(i) a first phthalic anhydride based polyester polyol having a hydroxyl number of 290 to 310 mg KOH/gram polyol and a OH functionality of 2.0 to 2.2, and(ii) a second phthalic anhydride based polyester polyol having a hydroxyl number of 340 to 360 mg/KOH gram polyol and a OH functionality of 2.3 to 2.5.4. The foam-forming composition of claim 3 , wherein:(i) is present in an amount of 50% to 99% by weight, based on the ...

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Номер записи: 97
10-02-2022 дата публикации

System and method for making textured foram that simulates human fingerprints

Номер: US20220041832A1
Автор: Alexander Cecola, Sophia Cecola
Принадлежит: Universal Brands LLC

A section of (cured and non-liquid) textured foam includes at least a portion of an upper surface that substantially resembles a look of a human fingerprint for a purpose of providing enhanced grip traction between the at least the portion of the upper surface of the textured foam and a hand or a foot of a user of the textured foam. Disposed opposite of the upper surface of the textured foam may be an adhesive backing for attachment to a diverse variety of exterior surfaces where improved grip traction are desired. Systems and methods for making such textured foam that substantially resembles a look of a human fingerprint may utilize a heating means and a compression means.

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Номер записи: 98
10-02-2022 дата публикации

REINFORCED INTUMESCENT POLYMER

Номер: US20220041840A1
Автор: Rutkevicius Marius, Zhong Sheng
Принадлежит:

An intumescent polymer is provided for molding fire-retardant structures. Expandable graphite is mixed in a polymer matrix to form the intumescent polymer. The expandable graphite is treated with silane to improve the strength of the polymer. Other ingredients may also be included within the polymer, including an acid source, blowing agent, char forming agent, an inorganic filler and a cross-linking agent. 1. An intumescent polymer , comprising:a polymer matrix; andexpandable graphite mixed within the polymer matrix;wherein the expandable graphite is covalently bonded to a silane.2. The intumescent polymer according to claim 1 , wherein the silane is covalently bonded to the expandable graphite with a hydrolysis reaction.3. The intumescent polymer according to claim 2 , wherein the silane is an alkyl-silane.44. The intumescent polymer according to claim 3 , wherein a side alkyl chain has carbon atoms or more.5. The intumescent polymer according to claim 3 , wherein the alkyl-silane comprises n-butyltrimethoxysilane claim 3 , pentyltriethoxysilane claim 3 , hexyltriethoxysilane claim 3 , isooctyltrimethoxysilane claim 3 , phenyltriethoxysilane claim 3 , octyltrimethoxysilane claim 3 , decyltriethoxysilane claim 3 , hexadecyltrimethoxysilane claim 3 , octadecyltrimethoxysilane claim 3 , eiscosyltrichlorosilane claim 3 , docosyltrichlorosilane or triacontyltrichlorosilane.6. The intumescent polymer according to claim 1 , wherein the silane is a chlorosilane.7. The intumescent polymer according to claim 6 , wherein the expandable graphite is covalently bonded with the chlorosilane in a gas phase.8. The intumescent polymer according to claim 6 , wherein the chlorosilane is trichloro(octyl)silane or vinyl trichlorosilane.9. The intumescent polymer according to claim 1 , wherein the silane is non-covalently bonded to the polymer matrix.10. The intumescent polymer according to claim 1 , wherein the silane is covalently bonded to the polymer matrix.11. The intumescent ...

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Номер записи: 99
24-01-2019 дата публикации

FOAMED INJECTION MOULDED ARTICLE

Номер: US20190023866A1
Автор: de Jonge Harmen Maria Hendrik, GERRITS Niclasina Siberta Johanna Alberdina, Van Es Martin Antonius, Yanev Angel
Принадлежит: Sabic Global Technologies B.V.

The invention is directed to a foamed injection moulded article comprising a foam composition obtained by foaming high density polyethylene having a quotient of melt strength and apparent viscosity >2 cN/k·Pa·s wherein the melt strength is determined as described in ISO 16790:2005 and the apparent viscosity is determined as described in ISO 11443:2014. 1. A foamed injection moulded article comprising a foam composition obtained by foaming high density polyethylene having a quotient of melt strength and apparent viscosity >2 cN/k·Pa·s wherein the melt strength is determined as described in ISO 16790:2005 and the apparent viscosity is determined as described in ISO 11443:2014.2. The article according to characterised in that the high density polyethylene hasMI (melt index) in the range between ≥0.01 and ≤50{'sup': '3', 'density in the range between ≥930 and ≤985 kg/mand'} MI in the range between ≥1 and ≤100 and', {'sup': '3', 'density in the range between ≥930 and ≤985 kg/m'}], 'and the high density polyethylene has been obtained by chain branching high density polyethylene having'}, 'a gel fraction less than 5%'}wherein MI (melt index) is measured according ISO1133-1:2011 at a temperature of 190° C. at a load of 2.16 kg, the density is measured at a temperature of 23° C. according ISO1183-1:2012 and the gel fraction is determined according to ASTM D2765-11.3. The article according to characterised in that chain branching is performed by irradiation.4. The article according to characterised in that irradiation takes place via electron beam irradiation.5. The article according to characterised in that the foam injection moulded article has a density between 100 and 750 kg/m.6. The article according to characterised in that the melt strength of polyethylene to be foamed ≥10 cN.7. The article according to characterised in that the article comprises two compact skins and a foamed core between the two compact skins.8. The article according to characterised in that the high ...

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Номер записи: 100