МЕДИЦИНСКИЕ ИЗДЕЛИЯ С ОДНОРОДНОЙ ПЛОТНОСТЬЮ ЭЛЕКТРИЧЕСКОГО ЗАРЯДА И МЕТОДЫ ИХ ИЗГОТОВЛЕНИЯ

Изобретение относится к ионным силикон-гидрогелевым и офтальмологическим изделиям, изготовленным из них и имеющим желаемый профиль поглощения слезного и поликатионного компонента офтальмологического раствора. Анионные, силикон-гидрогелевые контактные линзы содержат в своем составе или на указанном силикон-гидрогеле по меньшей мере один статистический сополимер, содержащий звенья, полученные из по меньшей мере 10 мас.% по меньшей мере одного неионного гидрофильного мономера и по меньшей мере одного анионного мономера, причем указанные контактные линзы имеют контактный угол примерно 70° или менее, поглощение лизоцима по меньшей мере примерно 50 мкг/линзу и менее чем примерно 10% поглощения по меньшей мере одного поликатионного компонента при контакте с 3 мл офтальмологического раствора, содержащего 0,001 мас.% указанного поликатионного компонента, 0,56% дигидрата цитрата и 0,021% моногидрата лимонной кислоты (по массе). Также изобретение относится к силикон-гидрогелю, изготовленному из реакционноспособной ...

ДОБАВКА И СПОСОБ ДЛЯ СОПРОТИВЛЕНИЯ ВРЕДНОМУ ВОЗДЕЙСТВИЮ ЗАМЕРЗАНИЯ И ОТТАИВАНИЯ И СОПРОТИВЛЕНИЯ ВРЕДНОМУ ВОЗДЕЙСТВИЮ РАССЛАИВАНИЯ ВЯЖУЩИХ СОСТАВОВ

Группа изобретений относится к добавке для сопротивления вредному воздействию замерзания и оттаивания и сопротивления вредному воздействию расслаивания для вяжущего состава, которая содержит водную суспензию, содержащую нерастворимый в воде сверхвпитывающий полимер и способные к набуханию полимерные микросферы. Описан способ изготовления устойчивого к вредному воздействию замерзания и оттаивания и устойчивого к вредному воздействию расслаивания вяжущего состава, который содержит образование смеси гидравлического цемента и добавки, которая содержит водную суспензию нерастворимого в воде сверхвпитывающего полимера и набухшие полимерные микросферы. Применяются полимерные микросферы для создания в пределах вяжущих составов пустот с контролированным размером. 2 н. и 9 з.п. ф-лы, 4 табл., 2 ил., 26 пр.

ВОДОРАСТВОРИМАЯ ПЛЕНКА ИЗ ПОЛИВИНИЛСПИРТОВОЙ СМЕСИ, РОДСТВЕННЫЕ СПОСОБЫ И РОДСТВЕННЫЕ ИЗДЕЛИЯ

Изобретение относится к водорастворимым пленкам, которые могут быть использованы для приведения в контакт с жидкостями, твердыми веществами или их комбинациями и к изделиям, содержащим данную пленку. Пленка содержит: смесь поливинилспиртовой (PVOH) смолы, которая включает первый сополимер PVOH, содержащий первое анионное мономерное звено, при этом первый сополимер PVOH имеет первый коэффициент включения (a) первого анионного мономерного звена; и второй сополимер PVOH, содержащий второе анионное мономерное звено. Причем второй сополимер PVOH имеет второй коэффициент включения (a) второго анионного мономерного звена, при этом разность a- aсоставляет от 0,5 до 10 мол.% и первое анионное мономерное звено и второе анионное мономерное звено являются одинаковыми или различными. Технический результат заключается в получении водорастворимой пленки с улучшенной растворимостью в воде, а также улучшенными свойствами прочности на растяжение и/или модуля при растяжении. 4 н. и 40 з.п. ф-лы, 3 ил., 17 ...

ТЕРМОСТОЙКИЙ ВОДОНАБУХАЮЩИЙ ПАКЕР

Изобретение относится к нефтяной промышленности и может найти применение при производстве водонабухающих пакеров. Термостойкий водонабухающий пакер включает корпус и набухающий материал. Набухающий материал выполнен четырехслойным с прослоями в каждом слое, с исходным материалом первого прослоя первого слоя, приклеенным к корпусу, и со всеми исходными материалами всех слоев, подвергнутых совместной и одновременной вулканизации. В качестве первого слоя набухающего материала использованы от 2 до 5 прослоев общей толщины в пределах от 6 до 15 мм исходного материала, имеющего увеличение объема при набухании в пресной воде в течение 8 суток на 1,5-2,0% и термостойкость 250-260 °С, в качестве исходного материала первого слоя использована смесь, масс. ч.: каучуковое связующее 100; вулканизующая группа 10,0-15,0; наполнители 6,0-10,0; природный силикат магния 16,0-17,0; алюмосиликатные полые микросферы 12,0-20,0; пластификатор 16,0-19,0. В качестве второго слоя набухающего материала использованы ...

СПОСОБ ПОЛУЧЕНИЯ ЦЕЛЛЮЛОЗОСОДЕРЖАЩЕГО ГЕЛЯ

Изобретение относится к способам получения композиций в виде гелей, содержащих наноразмерную целлюлозу, и может быть использовано в целлюлозно-бумажной, текстильной, химической, пищевой отраслях промышленности. Способ получения целлюлозосодержащего геля, включающий кислотную и окислительную обработку целлюлозосодержащего сырья, проводимую в присутствии водных растворов минеральной кислоты и неорганического окислителя с получением обработанного целлюлозосодержащего сырья, фильтрование обработанного целлюлозосодержащего сырья с получением целлюлозосодержащего осадка и фильтрата, направляемого на кислотную и окислительную обработку, промывку целлюлозосодержащего осадка промывочным раствором, отделение избыточного промывного раствора с образованием промытого целлюлозосодержащего осадка, диспергирование промытого целлюлозосодержащего осадка в воде с получением водной суспензии целлюлозы, механическое измельчение полученной водной суспензии целлюлозы с образованием водной суспензии наноразмерной ...

ВОДОПОГЛОЩАЮЩАЯ КОМПОЗИЦИЯ НА ОСНОВЕ СМОЛ И СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ

... 1. Композиция на основе водопоглощающей смолы, включающая порошкообразную водопоглощающую смолу (А) с поперечносшитой структурой, полученной полимеризацией ненасыщенного мономера, содержащего кислотную группу; при этом указанная порошкообразная водопоглощающая смола (А) поперечно сшита вблизи поверхности водопоглощающей смолы (А), причем композиция на основе водопоглощающей смолы содержит 95 мас.% или более частиц диаметром от 106 до 850 мкм; среднемассовый диаметр частиц составляет от 300 до 500 мкм; стандартное логарифмическое отклонение (σζ) распределения частиц композиции на основе водопоглощающей смолы по размерам составляет 0,45 или менее; а водорастворимый компонент водопоглощающей композиции составляет 35 мас.% или менее; и, кроме того, композиция на основе водопоглощающей смолы содержит компонент на основе поливалентного металла, причем степень извлечения компонента на основе поливалентного металла находится в диапазоне от 5,0 до 100 мас.%. 2. Композиция на основе водопоглощающей ...

Влаговпитывающая полимерная композиция

Изобретение относится к способу получения впитывающей полимерной композиции, включающему первую стадию прикрепления гидрофобного противомикробного средства к поверхности неорганических частиц с получением противомикробных частиц и вторую стадию прикрепления противомикробных частиц к поверхности впитывающего полимера с получением впитывающей полимерной композиции, при этом гидрофобное противомикробное средство характеризуется растворимостью в 100 г чистой воды при 25°C, составляющей 10,0 г и менее. Также изобретение относится к впитывающей полимерной композиции, которая включает впитывающий полимер и противомикробные частицы, включающие неорганические частицы, имеющие гидрофобное противомикробное средство, прикрепленное к их поверхности. Противомикробные частицы прикрепляются к поверхности впитывающего полимера. Предпочтительно, чтобы поверхность впитывающего полимера была бы частично обнаженной. Гидрофобное противомикробное средство предпочтительно является цетилфосфатом бензалкония, триклозаном ...

ВОДОРАСТВОРИМАЯ ПЛЕНКА ИЗ ПОЛИВИНИЛОВОГО СПИРТА СО СМЕСЬЮ ПЛАСТИФИКАТОРОВ, РОДСТВЕННЫЕ СПОСОБЫ И РОДСТВЕННЫЕ ИЗДЕЛИЯ

МЕДИЦИНСКИЕ ИЗДЕЛИЯ С ОДНОРОДНОЙ ПЛОТНОСТЬЮ ЭЛЕКТРИЧЕСКОГО ЗАРЯДА И МЕТОДЫ ИХ ИЗГОТОВЛЕНИЯ

... 1. Анионные, силикон-гидрогелевые контактные линзы, содержащие в своем составе или на указанном силикон-гидрогеле по меньшей мере один статистический сополимер, содержащий звенья, полученные из по меньшей мере 10 масс.% по меньшей мере одного неионного гидрофильного мономера и по меньшей мере одного анионного мономера, причем указанные контактные линзы имеют контактный угол примерно 70° или менее, поглощение лизоцима по меньшей мере примерно 50 мкг/линзу, и менее чем примерно 10% поглощения по меньшей мере одного поликатионного компонента при контакте с 3 мл офтальмологического раствора, содержащего 0,001 масс.% указанного поликатионного компонента, 0,56% дигидрата цитрата и 0,021% моногидрата лимонной кислоты (по массе).2. Контактные линзы по п.1, отличающиеся тем, что статистический сополимер является нереакционноспособным и связан с или содержится в указанных силикон-гидрогелевых контактных линзах.3. Контактные линзы по п.2, отличающиеся тем, что статистический сополимер содержит от ...

Mixtures of cationic polymers as flocculants

A polymer blend comprises a mixture of [i] a water soluble cationic structured [eg cross-linked] first polymer having a MW of at least 1 x 106 and [ii] a water soluble cationic second polymer having a MW of at least 1 x 106, the second polymer being linear or having a lower degree of structure than the first polymer, the blend having a sedimentation value of <10% when measured in 0.001 M NaCI and a sedimentation value of 10% or more when measured in 1 M NaCI. The blend is used for flocculation of waste activated sludge when the polymers can be added together or sequentially to the sludge, whereafter it is dewatered. The blend is preferably in the form of a water-in-oil emulsion. which can be prepared by mixing separate water-in-oil emulsions of the two polymers. Preferred polymers are for example acrylamide/quaternised dimethyl aminoethyl acrylate copolymers. The structured nature of the first polymer may be introduced by including for example N,N'-methylenebisacrylamide ...

Aqueous gel

An aqueous gel comprising water and by weight based on the water, 0.1-5% of an anionic polymer, such as 2-acrylamido-2-methylpropane sulphonic acid (AMPSA) or a cationic polymer, such as dimethyl diallyl ammonium chloride, at least 0.01% of a surfactant having 8-22 carbon atoms and a charge opposite that of the polymer, 0.001-5% of a hydrophobic alcohol, such as lauryl alcohol, an effective amount of a phosphorous-containing compound, such as tri-n-butyl phosphate, sufficient to increase the viscosity of the gel, up to 5% of an amphoteric surfactant, such as cocamidopropyl betaine, and up to 5% of an amine oxide, such as laury amine oxide, where the aqueous gel has a Zeta Potential of at least 20 millivolts. Also disclosed is a method of making the aqueous gel, a method of separating two portions of fluid for movement in a pipe comprising use of the aqueous gel. Further disclosed is an aqueous gel comprising a water-soluble polymer in an amount no greater than 1% by weight, having at least ...

Improved polymeric gel system and methods for making and using same in hydrocarbon recovery

Superabsorbent composition

Spray-drying oil recovery process

FROM CLAY/TONE AND SUPER+ABSORBING POLYMERS EXISTING GRAINS.

SUPER+ABSORBENT POLYMERS AND PROCEDURES FOR YOUR PRODUCTION

OIL RE-REFINING PROCEDURE FROM A SPRAY DRYING PROCEDURE

PULVEROUS, INTERLACED ONES, AQUEOUS LIQUIDS AS WELL AS BLOOD ABSORBING POLYMERS

Hydroxyphenyl cross-linked macromolecular network and applications thereof

Wettable hydrogels comprising acyclic polyamides

Admixture and method for freeze-thaw damage resistance and scaling damage resistance of cementitious compositions

A freeze-thaw damage resistance and scaling damage resistance admixture for a cementitious composition including an aqueous slurry comprising a water insoluble superabsorbent polymer and expandable polymeric microspheres. A method for preparing a freeze-thaw damage resistant and scaling damage resistant cementitious composition including forming a mixture of a hydraulic cement and an admixture including an aqueous slurry of a water insoluble superabsorbent polymer and expanded polymeric microspheres.

COATING COMPOSITION WITH TRISAMINE FUNCTIONALIZED DISPERSANT

DN 75996-US-PSP Abstract The present invention relates to a composition comprising a stable aqueous dispersion of polymer particles and a dispersant adsorbed onto the surfaces of TiO2 particles, wherein the dispersant is a water-soluble polymer functionalized with structural units of a carboxylic acid 5 ester and tris(hydroxymethyl)aminomethane. The composition of the present invention is particularly useful for achieving high hiding for paints containing associative thickeners.

Stereocomplex hydrogels

Porous, absorbent macrostructures of bonded absorbent particles surface crosslinked with cationic amino-epichlorohydrin adducts

HYDROGEL-FORMING POLYMER MIXTURE

The invention relates to a hydrogel-forming polymer mixture containing a) a hydrogel-forming polymer I with acid rests and b) a hydrogel-forming polymer II with amino and/or imino rests. The ratio of acid rests to the sum of amino/imino rests is between 1: 9 and 9: 1. The invention also relates to the use of said mixture in absorbent hygiene articles.

PULVERULENT, CROSS-LINKED POLYMERS, CAPABLE OF ABSORBING AQUEOUS LIQUIDS AND BLOOD

The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers carrying acid groups, and have improved properties, in particular in respect of cheir capacity for transportation of liquids in the swollen state, and which have been after-crosslinked on their surface at temperatures of >150.degree.C with a combination of polyol as after-crosslinking compound and a cation in the form of an aqueous solution.

ABSORBENT MEMBERS FOR ABSORBING BODY LIQUIDS

Described are absorbent members useful in the containment of body liquids such as urine. These absorbent members comprise at least one osmotic absorbent (preferably a hydrogel-forming absorbent polymer) and a high surface area material, and have a high capillary suction capacity. For purposes of the present disclosure, capillary suction capacity is measured in terms of the member's ability to uptake liquid at high capillary heights, which are generally encountered when the member is positioned in an absorbent article. In particular, capillary suction capacity is measured in terms of a member's capillary sorption absorbent capacity, which is measured in accordance with the Capillary Sorption method described in the Test Methods section.

BIOADHESIVE FOR SOFT TISSUE REPAIR

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

COSMETIC

The present invention addresses the problem of providing a cosmetic which contains a micro-fibrous cellulose as a thickening agent in the formulation thereof, does not undergo the aggregation of the micro-fibrous cellulose, and is homogeneous. According to the present invention, a cosmetic comprising the components (A) and (B) mentioned below is provided. (A) A micro-fibrous cellulose having fiber widths of 1000 nm or less; and (B) a water-soluble polymer.

WATER-SOLUBLE UNIT DOSE ARTICLES MADE FROM A COMBINATION OF DIFFERENT FILMS

The present disclosure relates to pouches made from a combination of chemically different water-soluble films and optionally containing a composition (e.g. a household care composition or non-household care composition) that is at least partially enclosed by the water-soluble films in at least one compartment.

SUPERABSORBENT-HYDROPHOBIC POLYMER TWO-PHASE COMPOSITIONS

Disclosed is a composition comprising a hydrophobic polymer phase and a water- swollen superabsorbent polymer phase. Also disclosed is a two component system for preparing a composition comprising a hydrophobic polymer phase and a water--swollen superabsorbent polymer phase. The first component is an emulsion of the hydrophobic polymer, the second component comprises the superabsorbentpolymer, and the first and second components form the composition when mixed.

COATING COMPOSITION WITH TRISAMINE FUNCTIONALIZED DISPERSANT

The present invention relates to a composition comprising a stable aqueous dispersion of polymer particles and a dispersant adsorbed onto the surfaces of TiO2 particles, wherein the dispersant is a water-soluble polymer functionalized with structural units of a carboxylic acid ester and tris(hydroxymethyl)aminomethane. The composition of the present invention is particularly useful for achieving high hiding for paints containing associative thickeners.

METHOD FOR MANUFACTURING A CEMENTITIOUS COMPOSITION

A method of expanding expandable polymeric microspheres including contacting an aqueous slurry including unexpanded, expandable polymeric microspheres with steam in-situ during manufacture of a cementitious composition or article, wherein the aqueous slurry optionally further includes an admixture therefor. A method of manufacturing, a cementitious composition or article includes: (i) contacting an aqueous slurry of unexpanded, expandable polymeric microspheres with steam proximate to and/or during said manufacturing of the cementitious composition to create expanded polymeric microspheres: (ii) pre-wetting the expanded polymeric microspheres; and (iii) mixing the pre-wetted, expanded polymeric microspheres with cement and water to form the cementitious composition. wherein the aqueous slurry optionally further comprises an admixture therefor.

METHOD FOR MANUFACTURING A CEMENTITIOUS COMPOSITION

A method of expanding expandable polymeric microspheres including contacting an aqueous slurry including unexpanded, expandable polymeric microspheres with steam in-situ during manufacture of acementitious composition or article, wherein the aqueous slurry optionally further includes an admixture therefor. A method of manufacturing a cementitious composition or article includes: (i) contacting an aqueous slurry of unexpanded, expandable polymeric microspheres with steam proximate to and/or during said manufacturing of the cementitious composition to create expanded polymeric microspheres; (ii) pre-wetting the expanded polymeric microspheres; and (iii) mixing the pre-wetted, expanded polymeric microspheres with cement and water to form the cementitious composition, wherein the aqueous slurry optionally further comprises an admixture therefor.

SPRAY-DRYING OIL RECOVERY PROCESS

A process for recovering oil from a water-soluble vinyl-addition polymercontaining water-in-oil emulsion or water-in-oil microemulsion spray-drying process, comprising: (a) condensing spray-dry process-generated oil and water to obtain condensed oil and condensed water; and (b) separating said condensed oil from said condensed water wherein said condensed oil is substantially free of non-gaseous polymerization-debilitating substances.

MIXED-BED ION-EXCHANGE HYDROGEL-FORMING POLYMER COMPOSITIONSAND ABSORBENT MEMBERS COMPRISING RELATIVELY HIGH CONCENTRATIONS OF THESE COMPOSITIONS

Disclosed are compositions comprising at least one cationic ion-exchange hydrogel-forming polymer and at least one anionic ion-exchange hydrogelforming polymer, wherein the composition exhibits improved absorbency characteristics relative to comparable mixtures of the hydrogel-forming polymers in their neutralized state. Also disclosed are mixed-bed ion-exhange compositions having improved Performance Under Pressure values relative to prior mixed-bed compositions, which, e.g., alleviate detrimental gel blocking incurred with these prior systems. Also disclosed are absorbent members useful in the containment of body fluids such as urine, that have at least one region comprising a mixed-bed ion-exchange hydrogel-forming absorbent polymer composition in a concentration of from about 60 to 100 % by weight.

Conductive carbon material dispersant and conductive carbon material dispersion

고흡수성 수지

... 본 발명은 보수능, 가압 흡수능, 통액성 및 겔 강도가 최적화되어, 전체적으로 균형 있고 보다 우수한 물성을 나타내는 고흡수성 수지에 관한 것이다. 이러한 고흡수성 수지는 적어도 일부가 중화된 산성기를 갖는 수용성 에틸렌계 불포화 단량체를 중합시킨 분말 형태의 베이스 수지를 표면 가교시킨 가교 중합체를 포함하는 고흡수성 수지로서, 원심분리 보수능(CRC), 가압 흡수능(AUP), 겔 강도(G') 및 생리 식염수 흐름 유도성(SFC) 등이 소정의 관계식을 충족할 수 있다.

Method for Preparing Super Absorbent Polymer, and Super Absorbent Polymer

CRC MEASURING METHOD OF SUPER ABSORBENT RESIN AND ANALYTICAL SYSTEM USING SAME

The present invention relates to a CRC measuring method of a high absorbent resin comprising the steps of: (a) measuring T2 relation time after swelling a high absorbent resin with D_2O; and (b) calculating a CRC value by using the T2 relaxation time value of step (a), and to an analytic system using the same. COPYRIGHT KIPO 2016 (AA) CRC value vs T2 relaxation time (D_2O swelling) (BB) Example 1 (CC) Example 2 (DD) Example 3 (EE) Example 4 ...

변성 폴리올레핀 함유 수성 분산체 조성물

... 접착성, 내수성이 양호하고, 수성 분산체 조성물의 점도가 500 m㎩·s 이하의 범위로 일정한 변성 폴리올레핀 함유 수성 분산체 조성물을 제공하는 것이다. 변성 폴리올레핀(A) 및 염기성 물질(B)을 함유하고, 산가가 150∼500 ㎎KOH/g-수지인 음이온성기 함유 수용성 고분자(C) 및 전해질(D) 중 적어도 한쪽을 더 함유하는 수성 분산체 조성물.

composição de resina absorvente de água, absorvente, artigo absorvente, método para produzir uma composição de resina absorvente de água

DERIVATIVES OF POLYMERIC OF LACTAMA

Se han modificado polímeros de lactama con borohidruro de sodio (NaBH4) para producir polímeros de lactama que acarrean grupos funcionales hidroxilo. Estos grupos funcionales son ventajosos para la union covalente de grupos reactivos, sondas fluorescentes, agentes antimicrobianos, factores bioactivos y fármacos. El producto sirve como componentes de dispositivos médicos, especialmente para dispositivos oftálmicos y más específicamente para lentes de contacto. Los hidrogeles basados en estos polímeros también son convenientes para aplicaciones biomédicas en las áreas de administracion de fármacos, ingeniería de tejidos y dispositivos implantables.

SUPERABSORBENT POLYMERS AND METHOD OF MANUFACTURING THE SAME

Superabsorbent polymer (SAP) particels containing a clay are disclosed. The clay is added to an SAP hydrogel prior to SAP neutralization to provide particles having improved fluid acquisition rates and an improved permeability of a fluid through the swollen SAP-clay particles. Diaper cores and absorbent articles containing the SAP-clay particles also are disclosed.

Water-absorbing resin particles, absorber comprising same, and absorbent article

Provided are the following: water-absorbing resin particles with which an absorber can be manufactured, the absorber enabling ample anchoring to be obtained without compromising on water absorbency; and an absorber obtained by anchoring together the water-absorbing resin particles and a fibrous base material. The present invention is: core-shell water-absorbing resin particles constituted of a core layer (P) containing a water-absorbing resin (A) and a shell layer (Q), the shell layer (Q) containing a thermoplastic resin (B) having a melting point of 50 to 180° C., and the thermoplastic resin (B) being a polymer having a hydrophobic block comprising a polyolefin; an absorber obtained by anchoring the water-absorbing resin particles to a fibrous base material (F); and an absorbent article made using such absorber.

TELECOMMUNICATIONS ENCLOSURE DESIGNS FOR IMPROVED SEALING AND RELIABILITY VIA SUPERABSORBENT POLYMERS

Embodiments of a telecommunications equipment enclosure are provided herein. The telecommunications enclosure includes a first portion having a first sealing surface and a second portion having a second sealing surface. The first portion and the second portion define an internal cavity when the first portion and the second portion are in a closed configuration. The telecommunications enclosure also includes a first gasket mounted to either the first sealing surface or the second sealing surface and superabsorbent polymer (SAP) located on at least one of the first portion and the second portion for restricting ingress of water into the internal cavity 1. A telecommunications equipment enclosure , comprising:a first portion having a first sealing surface;a second portion having a second sealing surface, wherein the first portion and the second portion define an internal cavity when the first sealing surface contacts the second sealing surface and the first portion and the second portion are in a closed configuration;a first gasket on either the first sealing surface or the second sealing surface; andsuperabsorbent polymer (SAP) located on at least one of the first portion and the second portion for restricting ingress of water into the internal cavity when the first portion and the second portion are in the closed configuration;wherein the SAP is not located between the first sealing surface and the second sealing surface when the first portion and the second portion are in the closed configuration.2. The telecommunications equipment enclosure of claim 1 , wherein the first sealing surface claim 1 , the second sealing surface claim 1 , and the SAP circumscribe the internal cavity.3. The telecommunications equipment enclosure of claim 1 , wherein the first sealing surface and the second sealing surface circumscribe the internal cavity claim 1 , wherein the SAP only partially circumscribes the internal cavity.4. The telecommunications equipment enclosure of claim 1 , ...

Preparation method of super absorbent polymer and super absorbent polymer therefrom

The present disclosure relates to a preparation method of a super absorbent polymer having excellent basic absorbency and liquid permeability at the same time by optimizing the degree of cross-linking of a base resin powder and a surface cross-linked layer, and a super absorbent polymer prepared therefrom. The preparation method of a super absorbent polymer includes: forming a hydrogel polymer by cross-linking and polymerizing a monomer composition including a water-soluble ethylene-based unsaturated monomer having a degree of neutralization of less than 72 mol % and an internal cross-linking agent; drying, pulverizing and classifying the hydrogel polymer to form a base resin powder; forming a surface cross-linked layer by further cross-linking a surface of the base resin powder in the presence of a surface cross-linking agent; and further neutralizing the base resin powder by treating the base resin powder with a basic solution during or after forming a surface cross-linked layer.

COMPOSITION, DEVICE AND METHOD OF USING

A reusable, fluid-swellable absorbent composition (20) is disclosed. The composition generally includes a superabsorbent polymer, a gum, a film-forming resin and gelatin. The composition may further include a colorant and/or reflective particles, and it is particularly well-suited for use with amusement devices (10), such as for use by children. The device (10) includes at least one sample of the invented composition, preferably including colorant and/or glitter, a volume of water (24) and a structure (10) including a base (12) and a closed perimeter extending outwardly from the base. The structure (10) includes a plurality of discrete regions (16), and may collectively resemble an object, scene or other image. Then upon placement of a small quantity of the composition (20) into a particular region and addition of water to the quantity, the composition swells, expands and generally conforms to the shape of the region.

BINDER COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY, PRODUCTION METHOD FOR SAME, SLURRY COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY ELECTRODE, NON-AQUEOUS SECONDARY BATTERY ELECTRODE, AND NON-AQUEOUS SECONDARY BATTERY

A binder composition for a non-aqueous secondary battery contains water-soluble macromolecules, water, and a particulate polymer formed of a polymer that includes a block region formed of an aromatic vinyl monomer unit. The surface acid content of the particulate polymer is 0.02 mmol/g or more, and the content of components having a molecular weight of not less than 1,000 and less than 15,000 among the water-soluble macromolecules is not less than 0.01 parts by mass and not more than 1.50 parts by mass per 100 parts by mass of the particulate polymer.

Способ получения полиамфолитного гидрогеля

Изобретение относится к области высокомолекулярных соединений, а именно к способу получения полимерных гидрогелей амфотерного типа на основе гидролизованного полиакриламида, которые могут быть использованы, например, в качестве сорбента. Способ получения полиамфолитного гидрогеля включает взаимодействие соединения, содержащего карбоксильные группы, и органического основания. В качестве соединения, содержащего карбоксильные группы, используют гидролизованный полиакриламид. В качестве органического основания используют алифатического диамин. Исходные компоненты берут в мольном соотношении от 1:0,05 до 1:0,2. Процесс ведут в течение 110-130 минут при температуре 40÷55°С. Технический результат – упрощение технологии получения полиамфолитного гидрогеля за счет исключения использования инициатора и сшивающего агента при одновременном повышении степени набухания полиамфолитного гидрогеля при удалении окрашенных примесей из сточных вод. 1 з.п. ф-лы, 5 табл., 4 пр.

СУПЕРАБСОРБИРУЮЩИЙ ПОЛИМЕР И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

СПОСОБ ИЗГОТОВЛЕНИЯ ВЯЖУЩЕГО СОСТАВА

... 1. Способ набухания способных к набуханию полимерных микросфер, содержащий приведение водной суспензии, содержащей ненабухшие, способные к набуханию полимерные микросферы, в контакт с паром, непосредственно до и/или во время изготовления вяжущего состава, где водная суспензия необязательно дополнительно содержит добавку для вяжущего состава.2. Способ по п. 1, где способ содержит приведение водной суспензии, содержащей ненабухшие, способные к набуханию полимерные микросферы, в контакт с паром, на месте проведения работ во время изготовления вяжущего состава.3. Способ по п. 1 или 2, где указанное приведение водной суспензии, содержащей ненабухшие, способные к набуханию полимерные микросферы, в контакт с паром, на месте проведения работ во время изготовления вяжущего состава, содержит приведение водной суспензии, содержащей ненабухшие, способные к набуханию полимерные микросферы, в контакт с паром, перед введением водной суспензии в поток питательной воды, подаваемой в вяжущий состав во время ...

Verbesserte Polymergemische zur Entwässerung

NICHTKLUMPENDE SUPERABSORBIERENDE POLYMERE

Water absorbing compositions and processes for their manufacture

WATER-ABSORBING POLYMER COMPOSITIONS WITH HIGH SORPTION CAPABILITY UNDER APPLIED PRESSURE AND IMPROVED INTEGRITY IN THE POURED CONDITION

SUPER+ABSORBING WATER-STEADY COATINGS FOR FIBER-REINFORCED ARTICLES

ELECTRICALLY CONDUCTIVE COMPOSITION AND USE OF IT

PROCEDURE FOR THE PRODUCTION PROTEINHALTIGEN HYDRAULIC GELS

SUPER+ABSORBING COMPOSITIONS AND PROCEDURES FOR YOUR PRODUCTION

Hydroxyphenyl cross-linked macromolecular network and applications thereof

Pulverulent, cross-linked polymers, capable of absorbing aqueous liquids and blood

Polymeric composition for solubilizing poorly water soluble drugs and process for the preparation thereof

Polymeric composition for solubilizing poorly water soluble drugs and process for the preparation thereof

Interpenetrating polymer networks

IPN compositions and methods of making the same are provided. The IPN compositions can include a water swellable, water permeable IPN or semi-IPN member with a first polymer network including a hydrophobic thermoset or thermoplastic polymer, a second polymer network including a non- ionic polymer, and a third polymer network including an ionic polymer containing sulfonic acid functional groups that are otherwise difficult to form composites with hydrophobic polymers. The IPN compositions can be used in orthopedic implants or in mechanical applications as a bearing material.

Superabsorbent polymers having anti-caking characteristics

Medical devices having homogeneous charge density and methods for making same

The present invention relates to ionic silicone hydrogel polymers displaying improved lysozyme uptake, low contact angle and reduced water soluble polymeric ammonium salt uptake.

WETTABLE HYDROGELS COMPRISING ACYCLIC POLYAMIDES

The present invention relates to biomedical devices, and particularly contact lenses comprising a polymer having entangled therein at least one acyclic polyamide.

ABSORBENT POLYMER COMPOSITIONS HAVING HIGH SORPTION CAPACITIES UNDER AN APPLIED PRESSURE

Disclosed in the present application are absorbent polymer compositions useful in the absorption of body fluids such as urine, menses and the like. In particular, the invention relates to mixed-bed ion-exchange absorbent polymer compositions having excellent absorbency performance properties in terms of absorbent capacity under a confining pressure of 0.7 psi and/or 1.4 psi. Certain mixed-bed ion-exchange absorbent polymer compositions of the present invention have excellent absorbency properties not only for a synthetic urine with a composition and ionic strength that is typical of young infants but also for a high ionic strength synthetic urine that has a composition and ionic strength that is typical of the urine of older infants and toddlers. The invention also relates to absorbent members comprising the mixed-bed ion- exchange absorbent polymer compositions, and absorbent articles comprising the absorbent members.

POROUS, ABSORBENT MACROSTRUCTURES OF BONDED ABSORBENT PARTICLES SURFACE CROSSLINKED WITH CATIONIC AMINO-EPICHLOROHYDRIN ADDUCTS

Porous, absorbent macrostructures that, upon contacting liquids such as wate r or body exudates (e.g., urine), swell and im- bibe such liquids, and are useful in absorbent articles such as diapers, adu lt incontinence pads, and sanitary napkins are dis- closed. These porous macrostructures comprise bonded absorbent particles tha t are surface crosslinked with cationic, preferably polymeric, amino-epichlorohydrin adducts.

Water absorbing agent and preparation method thereof, and absorbent and absorbent article using same

ABSORBENT COMPOSITION

Disclosed is an absorbent composition comprising each of an acidic and a basic material, wherein the absorbent composition exhibits desirable absorbent properties. Specifically, the present invention relates to an absorbent composition comprising either an acidic water-swellable, water- insoluble polymer having a pKabetween about 2 to about 12 or a basic water-swellable, water-insoluble polymer having a pKbbetween about 2 to about 12 and either a basic or an acidic second material. The absorbent composition has the ability to slowly absorb a large quantity of liquid, particularly while under an external pressure. The absorbent composition is useful in disposable absorbent products, such as those disposable absorbent products that are used to absorb bodily liquids. © KIPO & WIPO 2007 ...

Rubber Composition for Tire Tread with improved Hydroplanning Prevention

PRODUCING METHOD OF SUPER ABSORBENT RESIN

The present invention relates to a producing method of a super absorbent resin. The producing method of a super absorbent resin according to the present invention comprises the steps of: forming a hydrous gel phase polymer by thermal polymerization or photo-polymerization of a monomer composition comprising a water-soluble ethylene based unsaturated monomer and a polymerization initiator; drying the hydrous gel phase polymer; crushing the dried polymer; and mixing and reassembling, from the crushed polymer, fine powder having the diameter of 180 μm or less and polymer having the diameter of 300 μm or more, while adding steam. According to the present invention, it is possible to obtain a super absorbent resin having high fine powder cohesive strength. COPYRIGHT KIPO 2016 ...

SUPERABSORBENT WATER-RESISTANT COATINGS

Articles coated with a water-resistant coating that absorbs water to provide the water-resistant effect, and desorbs water when the coating is dried, and a method of providing water resistance and corrosion resistance to articles prepared with such coatings. The coating is formed by applying a composition comprising an aqueous solution of a superabsorbent water-soluble polymer precursor, optionally a viscosity modifying agent, and optionally a lubricant onto the surfaces of the article, and curing to form a coating comprising the superabsorbent polymer. © KIPO & WIPO 2007 ...

SUPER ABSORBENT RESIN, PRODUCING METHOD THEREOF AND PRODUCING DEVICE OF SUPER ABSORBENT RESIN

The present invention relates to a producing method of a super absorbent resin which can improve material properties of the super absorbent resin by cutting a polymerized super absorbent resin gel using a cutter having a denticulated blade and increasing specific surface area in a section of the super absorbent resin gel, a producing device to be used therein and an improved super absorbent resin having improved material properties. COPYRIGHT KIPO 2016 ...

process for the preparation of a polymeric structure water-absorbent, water-absorbent polymeric structure, composite, process for the preparation of a composite, foams, molded articles, sheets, films, cables, sealing materials, fluid absorbing hygiene articles, for compositions veìculos-regulating growth of fungi and plants, packaging materials, additives ground-dwelling or building materials, use of the polymeric structure water absorbent or composite, and using a salt

Polímero insolúvel em água, absorvente de água, na forma de partículas, seu processo de preparação e sua estrutura absorvente

Gel having interpenetrating network structure

The present invention provides a gel having an interpenetrating network structure formed from a first network structure and a second network structure, wherein, the first network structure is a first crosslinked polymer formed from the following compound: at least one non-crosslinking compound selected from the group consisting of a compound represented by the following formula (I) and a compound represented by the following formula (II), and at least one crosslinking compound selected from the group consisting of a compound represented by the following formula (III) and a compound represented by the following formula (IV); the second network structure is a second crosslinked polymer having at least one selected from the group consisting of an acidic dissociable group, an acidic dissociable group in the form of a salt, and a derivative group of an acidic dissociable group (the definition of the groups in the following formulas are as described in the specification).

MEDICAL DEVICES HAVING HOMOGENEOUS CHARGE DENSITY AND METHODS FOR MAKING SAME

Hydrogel forming composition and hydrogel produced therefrom

There is provided a hydrogel having a self-supporting property that can be produced only through mixing at room temperature, and there is provided a method by which the hydrogel can be manufactured by using industrially easily available raw materials. A hydrogel-forming composition that is capable of forming a hydrogel having a self-supporting property, the hydrogel-forming composition characterized by including: a water-soluble organic polymer having an organic acid salt structure or an organic acid anion structure; a silicate salt; and a dispersant for the silicate salt, having a weight average molecular weight of 200 to 20,000 and having hydrolysis resistance.

WATER-SOLUBLE POLYVINYL ALCOHOL BLEND FILM, RELATED METHODS, AND RELATED ARTICLES

Disclosed herein are water-soluble films including a polyvinyl alcohol (PVOH) resin blend and optionally one or more additional components such as plasticizers, fillers, surfactants, and other additives. The PVOH resin blend includes a PVOH copolymer including one or more types of anionic monomer units such as a PVOH terpolymer and a PVOH polymer such as another PVOH anionic copolymer or a partially or completely hydrolyzed PVOH homopolymer. When the PVOH copolymer and PVOH polymer are blended in particular proportions and/or selected with regard to various criteria related to physical and chemical film properties, the resulting water-soluble film formed from the PVOH resin blend exhibits substantially improved aqueous dissolution properties, tensile strength properties, and/or tensile modulus properties.

Moisture-sink layer for decorative surface coverings

Disclosed is decorative surface covering that has a substantially non-aqueous absorptive layer and a water retentive layer. The decorative surface covering may be a vinyl-backed floor covering that can be adhered to a substantially non-aqueous absorptive subfloor with a water-based adhesive. The water retentive layer is formed from a polymer matrix and super absorbent water retentive particles. The water retentive layer may also include a hydrophilic additive to facilitate movement of water from the adhesive to the super absorbent water retentive particles. The water retentive layer may also be applied to the substantially non-aqueous absorptive subfloor.

BINDER COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY, SLURRY COMPOSITION FOR NON-AQUEOUS SECONDARY BATTERY FUNCTIONAL LAYER, FUNCTIONAL LAYER FOR NON-AQUEOUS SECONDARY BATTERY, BATTERY COMPONENT FOR NON-AQUEOUS SECONDARY BATTERY, AND NON-AQUEOUS SECONDARY BATTERY

Provided is a binder composition for a non-aqueous secondary battery with which it is possible to form a functional layer that can provide a battery component such as an electrode or a separator with a balance of excellent handleability and process adhesiveness. The binder composition for a non-aqueous secondary battery contains: polymer particles containing a block polymer including a block region composed of an aromatic vinyl monomer unit; a water-soluble polymer including a hydrophilic group; and water. The block polymer has a diblock content of not less than 0 mass % and not more than 60 mass %. The water-soluble polymer has a weight-average molecular weight of not less than 15,000 and not more than 500,000.

Water-soluble polymers reduced in molecular weight, process for production thereof and usage thereof

The invention relates to water-soluble polymers reduced in molecular weight, a process for production of the same, and usage thereof. It makes it possible to obtain water-soluble polymers reduced in molecular weight by a simple procedure and in an economical and simple manner by subjecting either an aqueous solution admixed with an aqueous solution of an oxidizing agent and containing an amount within the range of 10-60% by mass of a water-soluble polymer and having a viscosity of not lower than 3000 mPa·s or a granular composition admixed or impregnated with an aqueous solution of an oxidizing agent and containing an amount within the range of 10-60% by mass of a water-soluble polymer to oxidation reaction, not by the method of polymerization at elevated temperatures, which is an energy-consuming method, or by the method of polymerization using large amounts of a chain transfer agent and/or an initiator, which is one of the raw materials, and these water-soluble polymer reduced in molecular ...

ELECTRICALLY CONDUCTIVE COMPOSITION AND BIOSENSOR

The electrically conductive composition includes an electrical conductive polymer, a binder resin, and at least one of a cross-linking agent and a plasticizer.

HYDROGEL FOR MEDICAL USE

WATER ABSORBENT

PROBLEM TO BE SOLVED: To produce a uniform absorbent which is excellent in moisture- absorbed blocking properties, assembly work properties, and absorption properties under pressure and can reduce a return quantity by using a kind of inorganic powder having a specified value or below in pH of dispersion and a specified value or above in specific surface area by a BET method and a water-absorbent resin. SOLUTION: In a water-absorbent resin, preferably, a part of a particle close to the surface is crosslinked, and water absorbency is at least 30 g/g. In inorganic powder which is preferably hydrophobic, pH of the dispersion is 7-10, and the specific surface area is at least 50 m2/g. When the inorganic powder is added to the water-absorbent resin, a dry blend method, a wet mixing method, and others can be employed. Moreover, the blocking percentage of an absorbent which is allowed to stand at 25°C for 1 hr under 90% relative humidity is 20% or below. In this way, the absorbent excellent in ...

吸水剤およびその製造方法

... 【課題】遠心分離機保持容量(CRC)と食塩水流れ誘導性(SFC)のバランスに優れる吸水剤、および吸水剤の製造方法を提供する。 【解決手段】吸水性樹脂(A)と、ヒドロキシル基を主鎖に有するポリアミン系ポリマーであるポリマー(B)とを混合する吸水剤の製造方法により、吸水性樹脂(A)と、ヒドロキシル基を主鎖に有するポリアミン系ポリマーであるポリマー(B)とを含む吸水剤を得る。 【選択図】なし ...

Резиновая смесь для манжеты пакерного устройства, разбухающая в буровом растворе "Полиэмульсан"

Изобретение относится к резиновой промышленности, в частности к созданию резиновой смеси для изготовления резиновых манжет пакерных устройств, разбухающих в буровом растворе «Полиэмульсан». Резиновая смесь для изготовления резиновых манжет, разбухающих в буровом растворе «Полиэмульсан», на основе комбинации натурального каучука и бутадиеннитрильного каучука БНКС-18 содержит целевые добавки, в том числе асбест хризотиловый, диспергированный в расплаве ε-капролактама с производными п-фенилендиамина, дисперсия которого, в свою очередь, диспергирована в двойном этиленпропиленовом или тройном этиленпропилендиеновом каучуках, а в качестве вулканизующего агента - серу, при этом сера, находящаяся в пасте с дисперсионной средой, представленной эвтектическим расплавом ε-капролактама и малеиновой кислотой, заключена в капсулу с оболочкой из коллоидной кремнекислоты при следующем соотношении компонентов серной капсулы, % масс.: сера -от 22,50 до 27,50, коллоидная кремнекислота (БС-120) - 50,00, ε-капролактам ...

МНОГОСЛОЙНЫЕ ВОДОДИСПЕРГИРУЕМЫЕ ИЗДЕЛИЯ

Изобретение относится к области водорастворимых и вододиспергируемых изделий, которые используются в качестве упаковки для упрощения диспергирования, заливки, растворения и дозирования композиции, подлежащей доставке. Многослойное вододиспергируемое изделие, необязательно плёнка, включает восковой слой, включающий воск, и промежуточную область, расположенную между слоем водорастворимого полимера и восковым слоем, содержащую смесь водорастворимого полимера и воска, причем воск присутствует в количестве около 5-200 мас.ч. на 100 мас.ч. водорастворимого полимера, и вододиспергируемое изделие имеет скорость пропускания паров влаги (MVTR) около 60-300 г H2O/м2/сутки. Также раскрыт способ изготовления многослойного вододиспергируемого изделия. Изобретение обеспечивает получение вододиспергируемых изделий, которые могут сохранять агрессивные химикаты и/или другие материалы, на которые может воздействовать присутствие влаги, но которые остаются вододиспергируемыми после контакта с указанным химикатом ...

THERMALGELLING FOAM COMPOSITION AND FROM IT MANUFACTURED FOAM MATERIAL

NICHTKLUMPENDE SUPER+ABSORBING OF POLYMERS

POROUS MACRO STRUCTURES OUT WITH KATIONI AMINO EPICHLOR HYDRIN ADDUCTS SUPERFICIAL INTERLACED ABSORBING PARTICLES

COMPOSITION, DEVICE AND PROCEDURE FOR THE USE

TWO-PHASE COMPOSITION FROM SUPER+ABSORBING AND HYDROPHOBEM POLYMER

USE OF POWDERED ONES, INTERLACED ONE, AQUEOUS LIQUIDS ABSORBING POLYMERS IN SANITARY ARTICLES

Water-absorbing resin composition

A water-absorbent resin composition having an antimicrobial property, which suppresses the generation of dust of the antimicrobial agent. A water-absorbent resin composition comprising a water-absorbent resin and an antimicrobial agent comprising an inorganic compound carrying an antimicrobial metal, the water-absorbent resin composition being characterized in that the degree of generated dust of the water-absorbent resin composition is at most 100 CPM. The water-absorbent resin composition of the present invention can be suitably used as hygienic materials such as disposable diaper, sanitary napkin and incontinence pad; urine-absorbent materials for pets; materials for civil engineering and construction such as packing materials; drip absorbents; food freshness retaining materials such as cold-reserving agents; horticultural articles such as water-retaining materials for soils; and the like.

Bioadhesive for Soft Tissue Repair

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

ADHESIVE COMPOSITION AND ADHERED ROOFING SYSTEM PREPARED USING THE ADHESIVE COMPOSITION

The invention is directed to an adhesive composition including at least one rubber component, a solvent, and at least one powdered superabsorber polymer. The invention also relates to a method for bonding a roofing membrane to a substrate using the adhesive composition as a contact adhesive, to fully adhered membrane roofing system, and to the use of adhesive composition for adhering roofing membranes to substrates by contact bonding. 1. An adhesive composition comprising:a) at least one rubber component,b) at least one organic solvent, andc) at least one powdered superabsorber polymer, wherein the total amount of powdered superabsorber polymers is 0.5-10.0% by weight, based on the total weight of the adhesive composition.2. The adhesive composition according to claim 1 , wherein the adhesive composition is a solvent-based solution adhesive claim 1 , wherein the at least one rubber component is dissolved in the organic solvent.3. The adhesive composition according to claim 1 , wherein the total amount of powdered superabsorber polymers is 1.0-6.0% by weight claim 1 , based on the total weight of the adhesive composition.4. The adhesive composition according to claim 1 , wherein the total amount of the rubber components is 5.0-60.0% by weight based on the total weight of the adhesive composition.5. The adhesive composition according to claim 1 , wherein the total amount of the organic solvents is 50.0-90.0% by weight based on the total weight of the adhesive composition.6. The adhesive composition according to claim 1 , wherein the rubber component is selected from the group consisting of chloroprene rubber claim 1 , butyl rubber claim 1 , halogenated butyl rubber claim 1 , acryl nitrile rubber claim 1 , natural rubber claim 1 , and mixtures thereof.7. The adhesive composition according to claim 1 , further comprising at least one hydrocarbon resin and/or a synthetic thermosetting resin claim 1 , and/or adhesion promoter.8. A method for bonding a roofing membrane to ...

Super Absorbent Polymer And Preparation Method Thereof

The present invention relates to a super absorbent polymer and a preparation method thereof, the super absorbent polymer including: surface cross-linked polymer particles prepared by surface cross-linking particles of a base resin, the base resin polymerized from a monomer composition including water-soluble ethylene-based unsaturated monomers having at least partially neutralized acidic groups; and a water-soluble component, wherein the water-soluble component has a weight average molecular weight of 150,000 to 300,000 g/mol. The super absorbent polymer may have high centrifuge retention capacity and excellent permeability at the same time, while having low content of the water-soluble component. 15-. (canceled)6. A preparation method of a super absorbent polymer , comprising:preparing a monomer composition including a water-soluble ethylene-based unsaturated monomers have un-neutralized acidic groups, and a polymerization initiator, wherein the polymerization initiator has a content of 40 to 300 ppm based on the amount of water-soluble ethylene-based unsaturated monomers;adding a neutralizing agent to the monomer composition to neutralize at least some of the un-neutralized acidic groups of the water-soluble ethylene-based unsaturated monomers;preparing a hydrogel polymer by polymerizing the monomer composition, wherein a polymerization temperature ranges from 20 to 45° C.;drying the hydrogel polymer;pulverizing the dried polymer to form particles; andsurface cross-linking the particles in the presence of a surface cross-linking agent to form surface cross-linked polymer particles of the super absorbent polymer, wherein the surface cross-linking agent is present in an amount ranging from 0.15 to 0.7 wt % based on an amount of the particles.7. The preparation method of claim 6 , wherein the super absorbent polymer includes a water-soluble component included in the super absorbent polymer has a weight average molecular weight of 150 claim 6 ,000 to 300 claim 6 ,000. ...

AMPHIPHILIC COPOLYMERS WITH MIXED FUNCTIONALITIES

The present disclosure relates to an amphiphilic copolymer comprising: a) repeating monomeric units comprising a pendant zwitterionic moiety; b) repeating monomeric units comprising a pendant group comprising a fluorine-containing group and at least one heteroatom; and c) optionally, secondary repeating monomeric units comprising a pendant group comprising a functional group selected from the group consisting of phosphate groups, phosphonate groups, sulfonate groups, alkoxysilane groups, carboxylate groups, and any combinations thereof; and wherein the repeating monomeric units of the amphiphilic copolymer independently comprise an ethylenically unsaturated polymerizable group selected from the group of (meth)acrylate ester containing groups. In another aspect, the present disclosure is directed to a protective coating composition comprising: a) an amphiphilic co polymer as described above, and b) a solvent comprising water. 1. An amphiphilic copolymer comprising:a) repeating monomeric units comprising a pendant zwitterionic moiety;b) repeating monomeric units comprising a pendant group comprising a fluorine-containing group and at least one heteroatom; andc) optionally, secondary repeating monomeric units comprising a pendant group comprising a functional group selected from the group consisting of phosphate groups, phosphonate groups, sulfonate groups, alkoxysilane groups, carboxylate groups, and any combinations thereof;and wherein the repeating monomeric units of the amphiphilic copolymer independently comprise an ethylenically unsaturated polymerizable group selected from the group of (meth)acrylate ester containing groups.2. An amphiphilic copolymer according to claim 1 , wherein the fluorine-containing group is selected from the group consisting of fluoroalkyl groups claim 1 , perfluoroalkyl groups claim 1 , fluorooxyalkyl groups claim 1 , perfluorooxyalkyl groups claim 1 , fluoroalkylene groups claim 1 , perfluoroalkylene groups claim 1 , fluorooxyalkylene ...

SILICONE HYDROGEL LENSES WITH WATER-RICH SURFACES

The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a lower water content silicone hydrogel core (or bulk material) completely covered with a layer of a higher water content hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort. 164-. (canceled)66. The silicone hydrogel contact lens of claim 65 , wherein the outer surface hydrogel layer has a water-swelling ratio of at least about 200%.67. The silicone hydrogel contact lens of claim 66 , wherein the outer surface hydrogel layer has a thickness of from about 0.25 μm to about 15 μm.68. The silicone hydrogel contact lens of claim 66 , wherein the outer surface hydrogel layer has a thickness of from about 0.25 μm to about 15 μm.69. The silicone hydrogel contact lens of claim 65 , wherein the outer surface hydrogel layer has a thickness of from about 0.5 μm to about 12.5 μm.70. The silicone hydrogel contact lens of claim 69 , wherein the outer surface hydrogel layer has a water-swelling ratio of at least about 200%.71. The silicone hydrogel contact lens of claim 65 , wherein the outer surface hydrogel layer has a thickness of from about 1 μm to about 10 μm.72. The silicone hydrogel contact lens of claim 71 , wherein the outer surface hydrogel layer has a water-swelling ratio of at least about 200%.73. The silicone hydrogel contact lens of claim 65 , wherein the PEG chains which are derived from at least one member selected from the group consisting of: PEG-NH; PEG-SH; PEG-COOH; HN-PEG-NH; HOOC-PEG-COOH; HS-PEG-SH; HN-PEG-COOH; HOOC-PEG-SH; HN-PEG-SH; a multi-arm PEG with one or more amino claim 65 , carboxyl or thiol groups; a PEG dendrimer with one or more amino claim 65 , carboxyl or thiol groups; and combinations thereof.74. The silicone hydrogel contact lens of wherein ...

Ultraviolet-hardening hydrogel resin and hydrogel for transdermal administration, and cataplasm agent containing same

The present invention relates to a UV-curable hydrogel resin for transdermal administration, a hydrogel prepared using the UV-curable hydrogel resin, and a cataplasm prepared using the UV-curable hydrogel resin. More particularly, the present invention relates to a hydrogel resin with an optimal composition and composition ratio which allows increase in a water content of a hydrogel applied as a drug layer of a cataplasm, skin irritation mitigation, and crosslinking degree adjustment for adhesion control and is capable of controlling drug releasing property and transdermal absorbability, a hydrogel prepared by UV-hardening the hydrogel resin, and a cataplasm including the hydrogel.

Super Absorbent Resin Having Improved Solidification Resistance, And Method For Preparing Same

Disclosed are a superabsorbent polymer having improved anti-caking properties and a method of preparing the same, and the superabsorbent polymer having improved anti-caking properties includes a superabsorbent polymer, microparticles, and water, and to improve anti-caking properties of the superabsorbent polymer, the temperature of the superabsorbent polymer or water upon addition of water or the aging time upon stirring is adjusted, thereby preventing caking of the particles. 1. A method of preparing a superabsorbent polymer having improved anti-caking properties , comprising:performing heating treatment on at least one of a superabsorbent polymer, particles, or water to form heated components, wherein the superabsorbent polymer, the particles, and the water are components; andmixing the heated components together, or mixing the heated components with the remaining unheated components, to prepare a superabsorbent polymer having improved anti-caking properties,{'sup': '2', 'wherein the particles are present in an amount of 0.0001 15.0 parts by weight, based on 100 parts by weight of the superabsorbent polymer, and wherein the particles have a BET specific surface area of 300 1500 m/g and a porosity of 50% or more, and'}wherein the water is present in an amount of 0.1 20.0 parts by weight based on 100 parts by weight of the superabsorbent polymer and the particles.2. The method of claim 1 , wherein the heating treatment is performed by heating claim 1 , to a temperature ranging from 26° C. 95° C.3. (canceled)4. The method of claim 1 , further comprising:adding the particles to the superabsorbent polymer to form a composition;performing the heating treatment on at least one of the composition or the water to a temperature ranging from 26° C. 95° C.; andthen mixing the water with the composition to form the superabsorbent polymer having anti-caking properties.5. The method of claim 1 , wherein the particles are present in an amount of 0.001 20 parts by weight based on ...

Hydrogel, Production, And Medical Device Comprising An Electrode Coated Therewith

The invention relates to a hydrogel comprising cross-linked copolymer chains, wherein some of the repetitive units of the copolymer are based on functionalized monomers that contain both a polymerizable group and a complexing group, wherein the functionalized monomers further contain a cationic group, and wherein the hydrogel comprises anions corresponding to said cationic groups. 1. A hydrogel comprising cross-linked copolymer chains , with some of the repetitive units of the copolymer being based on functionalized monomers that have both a polymerizable group and a complexing group ,characterized in thatthe functionalized monomers furthermore have a cationic group; and in that that the hydrogel comprises anions corresponding to these cationic groups.2. A hydrogel in accordance with claim 1 , characterized in that the cationic group is a quaternary nitrogen atom.3. A hydrogel in accordance with claim 1 , characterized in that the polymerizable group comprises a polymerizable ethylenic functionality.4. A hydrogel in accordance with claim 1 , characterized in that the complexing group is a thiol claim 1 , a phosphonic acid ester claim 1 , an alkyne claim 1 , a 1 claim 1 ,3-dicarbonyl claim 1 , an enamine claim 1 , a dithiol claim 1 , a triazole claim 1 , a tetrazole claim 1 , a carboxylic acid hydride claim 1 , a cyanide claim 1 , a chelate-forming amine claim 1 , a diamine or a polyamine.5. A hydrogel in accordance with claim 1 , characterized in that at least some of the anions are chloride claim 1 , iodide claim 1 , bromide claim 1 , aryl sulfonate claim 1 , alkyl sulfate claim 1 , sulfate claim 1 , aryl phosphonate claim 1 , alkyl phosphonate claim 1 , monoalkyl phosphonate claim 1 , dialkyl phosphate claim 1 , hydrogen phosphate claim 1 , phosphate claim 1 , hexafluorophosphate claim 1 , hydrogen carbonate claim 1 , carbonate claim 1 , carbamate claim 1 , alkyl carbonates claim 1 , triflate or carboxylate.6. A hydrogel in accordance with claim 1 , characterized ...

SILICONE HYDROGEL LENSES WITH WATER-RICH SURFACES

The invention is related to a hydrated silicone hydrogel contact lens having a layered structural configuration: a lower water content silicone hydrogel core (or bulk material) completely covered with a layer of a higher water content hydrogel totally or substantially free of silicone. A hydrated silicone hydrogel contact lens of the invention possesses high oxygen permeability for maintaining the corneal health and a soft, water-rich, lubricious surface for wearing comfort. 164-. (canceled)66. The silicone hydrogel contact lens of claim 65 , wherein the outer surface hydrogel layer has a water-swelling ratio of at least about 200%.67. The silicone hydrogel contact lens of claim 66 , wherein the outer surface hydrogel layer has a thickness of from about 0.25 μm to about 15 μm.68. The silicone hydrogel contact lens of claim 66 , wherein the outer surface hydrogel layer has a thickness of from about 0.25 μm to about 15 μm.69. The silicone hydrogel contact lens of claim 65 , wherein the outer surface hydrogel layer has a thickness of from about 0.5 μm to about 12.5 μm.70. The silicone hydrogel contact lens of claim 69 , wherein the outer surface hydrogel layer has a water-swelling ratio of at least about 200%.71. The silicone hydrogel contact lens of claim 65 , wherein the outer surface hydrogel layer has a thickness of from about 1 μm to about 10 μm.72. The silicone hydrogel contact lens of claim 71 , wherein the outer surface hydrogel layer has a water-swelling ratio of at least about 200%.73. The silicone hydrogel contact lens of claim 65 , wherein the reactive vinylic monomer is selected from the group consisting of amino-C-Calkyl (meth)acrylate claim 65 , C-Calkylamino-C-Calkyl (meth)acrylate claim 65 , allylamine claim 65 , vinylamine claim 65 , amino-C-Calkyl (meth)acrylamide claim 65 , C-Calkylamino-C-Calkyl (meth)acrylamide claim 65 , acrylic acid claim 65 , C-Calkylacrylic acid claim 65 , N claim 65 ,N-2-acrylamidoglycolic acid claim 65 , and combinations ...

Methods for Expanding Clinical Tissue Specimens

The invention provides a method for preparing an expanded biological specimen suitable for microscopic analysis. Expanding the biological sample can be achieved by binding, e.g., anchoring, key biomolecules to a polymer network and swelling, or expanding, the polymer network, thereby moving the biomolecules apart as further described below. As the biomolecules are anchored to the polymer network isotropic expansion of the polymer network retains the spatial orientation of the biomolecules resulting in an expanded, or enlarged, biological specimen. 1. A method for preparing an expandable biological specimen comprising the steps of(a) contacting the sample with macromolecules that will bind to biomolecules within the sample;(b) treating the specimen with a bifunctional crosslinker;(c) permeating the specimen with precursors of a swellable polymer;(d) polymerizing the precursors to form a swellable polymer within the specimen;(e) anchoring the biomolecules to the swellable polymer; and(f) incubating the sample with about 1 to about 100 U/ml of a non-specific protease in a buffer having a pH between about 4 and about 12, the buffer comprising about 5 mM to about 100 mM of a metal ion chelator, about 0.1% to about 1.0% of a nonionic surfactant, and about 0.05 M to about 1.0 M monovalent salt, for about 0.5 to about 3 hours at about 50° C. to about 70° C.2. The method of claim 1 , wherein the expandable specimen is expanded by contacting the swellable polymer with a solvent or liquid to cause the swellable polymer to swell.3. The method of claim 1 , wherein the specimen is a previously preserved clinical sample.4. The method of claim 3 , wherein the sample is a formalin fixed paraffin embedded (FFPE) or a hematoxylin and eosin (H&E) stained tissue sample claim 3 , or a fresh frozen sample claim 3 , and wherein claim 3 , prior to contacting step (a) claim 3 , the method further comprises the steps of(i) de-coversliping the sample if it is mounted;(ii) subjecting the sample ...

HIGHLY-SWELLABLE POLYMERIC FILMS AND COMPOSITIONS COMPRISING THE SAME

Highly-swellable polymeric films are provided. Aspects also include ingestible compositions that include the highly-swellable polymeric film and an ingestible component. Aspects further include methods of making and using the compositions. 139.-. (canceled)40. A device comprising:a framework;a control device coupled to the framework;a partial power source coupled to the control device and configured to provide power to the control device when activated, the partial power source comprising an anode material and a cathode material; anda highly-swellable polymeric film that rapidly swells without disintegrating upon contact with an aqueous medium external to the device, and covers at least one of the anode material and the cathode material;{'claim-text': ['in a first mode of operation, increase shelf-life stability of the device by inhibiting reaction of at least one of the anode material and the cathode material with ambient moisture while the device is in storage; and', {'claim-text': ['swell upon contact with the aqueous medium; and', 'upon swelling, provide conduction between the aqueous medium and at least one of the anode material and the cathode material that the highly-swellable polymeric film is covering.'], '#text': 'in a second mode of operation:'}], '#text': 'wherein the highly-swellable polymeric film is pre-fabricated to:'}41. The device according to claim 40 , wherein the highly-swellable polymeric film rapidly swells to ten times or greater in volume upon contact with the aqueous medium.42. The device according to claim 41 , wherein the highly-swellable polymeric film swells to ten times or greater in volume within one minute or less upon contact with the aqueous medium.43. The device according to claim 40 , wherein the highly-swellable polymeric film is configured to absorb ten grams or more of water per gram of film upon contact the aqueous medium.44. The device according to claim 40 , wherein the highly-swellable polymeric film comprises an ionic ...

Noncovalent soft elastomer and method for manufacturing the same

A noncovalent soft elastomer includes a binary block copolymer composed of an A block and a B block and a solvent, wherein the B block has a noncovalent-bonding functional group, and the solvent is a nonvolatile liquid which has a property of dissolving the B block but not dissolving the A block and which forms a functional group capable of noncovalent-bonding of the B block.

SILICONE-BASED HYDROPHILIC COPOLYMER AND HYDROGEL COMPOSITIONS COMPRISING THE SAME

A hydrophilic siloxane copolymer of siloxane and hydrophilic organic monomer/s The copolymers can be functionalized to make them capable of undergoing further polymerization by thermal or actinic radiations. The hydrophilicity of these polymers can be varied by varying the siloxane versus organic monomer ratio thereby going from water dispersible to soluble states. The siloxane content can be tuned accordingly in order to provide moderate to high oxygen permeability. These copolymers can be used as a single component curable composition which results in hydrogels to minimize the presence of leachable components thus by reducing the processing cost. The polymers may also find applications in personal care formulations as copolymers, film-formers, hydrogels, coating, emulsions/latex etc. 1. (canceled)3. (canceled)4. The copolymer of wherein D and T are independently selected from OR claim 2 , NRR claim 2 , or —CRCRRO claim 2 , where R claim 2 , R claim 2 , R claim 2 , R claim 2 , R claim 2 , and Rcan be selected from hydrogen or a monovalent hydrocarbon radical with 1 to 5 carbon atoms.67-. (canceled)8. The copolymer of claim 2 , wherein the ratio of m:n:p is from about 5-60:20-80:5-60 claim 2 , with the proviso that the total of the ratio adds up to 100.1011-. (canceled)12. The composition of wherein D and T are independently selected from OR claim 9 , NRR claim 9 , or —CRCRRO claim 9 , where R claim 9 , R claim 9 , R claim 9 , R claim 9 , R claim 9 , and Rare selected from hydrogen or monovalent hydrocarbon radical with 1 to 5 carbon atoms.1415-. (canceled)16. The composition of claim 9 , wherein the ratio of m:n:p is from about 5-60:20-80:5-60 claim 9 , with the proviso that the total of the ratio adds up to 100.17. The composition of claim 9 , wherein the composition further comprises a cure initiator; optionally a monomer chosen from a vinylic monomer claim 9 , an acrylide monomer claim 9 , an acrylic monomer claim 9 , or a combination of two or more thereof; and ...

Method for the Agglomeration of Superabsorber Particles

A process for agglomerating superabsorbent particles, wherein polymer particles having a particle size of 250 μm or less are dispersed in a hydrophobic organic solvent, the dispersed polymer particles are mixed with an aqueous monomer solution, the total amount of water applied to the dispersed polymer particles being at least 100% by weight, based on the dispersed polymer particles, and the monomer solution is polymerized. 1. A process for agglomerating superabsorbent particles by polymerizing a first aqueous monomer solution comprisinga) at least one ethylenically unsaturated monomer which bears an acid group and optionally at least partly neutralized,b) optionally one or more crosslinker,c) at least one initiator,d) optionally one or more ethylenically unsaturated monomer copolymerizable with the monomer mentioned under a), ande) optionally one or more water-soluble polymer,and optionally drying and/or comminuting the resulting polymer particles, which comprises removing polymer particles having a particle size of 250 μm or less, dispersing the polymer particles removed in a hydrophobic organic solvent, mixing the dispersed polymer particles with a second aqueous monomer solution comprisinga) at least one ethylenically unsaturated monomer which bears an acid group and optionally at least partly neutralized,b) optionally one or more crosslinker,c) at least one initiator,d) optionally one or more ethylenically unsaturated monomer copolymerizable with the monomer mentioned under a), ande) optionally one or more water-soluble polymer,where the first monomer solution and the second monomer solution may be the same or different, the total amount of water applied to the dispersed polymer particles being at least 100% by weight, based on the dispersed polymer particles, and polymerizing the second monomer solution.2. The process according to claim 1 , wherein polymer particles having a particle size of 200 μm or less are removed.3. The process according to claim 1 , ...

LIGHT-ASSISTED PHOTOCATALYST REGENERATION AND OXYGEN-RESILIENT RADICAL POLYMERIZATION

A photocatalyst can be regenerated with increasing efficiency, turnover number and turnover frequency in the presence of air by irradiating the photocatalyst with a first range of wavelengths of light that excite the photocatalyst to an intermediate and irradiating the intermediate with a second range of wavelengths of light that turns the intermediate to the photocatalyst. 1. A method of regenerating a photocatalyst comprising:irradiating the photocatalyst with a first range of wavelengths of light that excite the photocatalyst to one or more intermediates; andirradiating the one or more intermediates with a second range of wavelengths of light that turns the intermediate to the photocatalyst.2. The method of claim 1 , wherein the one or more intermediates turns to the photocatalyst in the presence of oxygen.3. The method of claim 1 , wherein the photocatalyst is in a medium.4. The method of claim 3 , wherein the medium is aqueous.5. The method of claim 3 , wherein the medium is non-aqueous.6. The method of claim 1 , wherein the photocatalyst is Eosin Y.7. The method of claim 6 , wherein the first range of wavelengths of light is from 430 nm to 560 nm.8. The method of claim 6 , wherein the first range of wavelengths of light is from 516 nm to 525 nm.9. The method of claim 6 , wherein the second range of wavelengths of light is from 350 nm to 420 nm.10. The method of claim 6 , wherein the second range of wavelengths of light is from 405 nm to 408 nm.11. The method of claim 1 , wherein a concentration of the photocatalyst in the medium is 0.1-40 μM.12. The method of claim 1 , wherein an intensity of the first range of wavelengths of light is 0.75-35 mW/cm.13. The method of claim 1 , wherein the photocatalyst polymerizes hydrogel.14. A method of diagnosing a disease comprising:preparing a solution including a monomer and a photocatalyst in a medium;adding a body fluid to the solution;irradiating the solution with a first range of wavelengths of light that excite the ...

HYDROGEL AND USES THEREFOR

The present invention relates to a hydrogel and use thereof. More specifically, the present invention relates to a hydrogel comprising water and a polymer matrix, wherein the polymer matrix comprises a copolymer of a monofunctional monomer having a hydrophilic group and one ethylenic unsaturated group, and a polyfunctional monomer having no ester bond, and having an amide group and 3 to 6 ethylenic unsaturated groups, 40 to 95 parts by mass of the water, and 5 to 60 parts by mass of the polymer matrix are contained in 100 parts by mass of the hydrogel, and the hydrogel shows a swelling degree of 650% or less, when the hydrogel is immersed in a 4M aqueous KOH solution under a temperature of 25° C. for 14 days, and use thereof. 1. A hydrogel comprising water and a polymer matrix , whereinsaid polymer matrix comprises a copolymer of a monofunctional monomer having a hydrophilic group and one ethylenic unsaturated group, and a polyfunctional monomer having no ester bond, and having an amide group and 3 to 6 ethylenic unsaturated groups,40 to 95 parts by mass of said water, and 5 to 60 parts by mass of said polymer matrix are contained in 100 parts by mass of said hydrogel, andsaid hydrogel shows a swelling degree of 650% or less, when the hydrogel is immersed in a 4M aqueous KOH solution under a temperature of 25° C. for 14 days.4. The hydrogel according to claim 1 , wherein said polyfunctional monomer is a water-soluble monomer having 10 to 40 carbon atoms claim 1 , and having a melting point of 70 to 150° C.5. The hydrogel according to claim 1 , wherein said copolymer comprises 100 parts by mass of a unit derived from said monofunctional monomer claim 1 , and 0.1 to 5 parts by mass of a unit derived from said polyfunctional monomer.6. The hydrogel according to claim 1 , wherein when said hydrogel is immersed in a 4M aqueous KOH solution saturated with zinc oxide claim 1 , and thereafter claim 1 , is subjected to a direct current polarization test in which a direct ...

POLYMER MATRIX COMPOSITES COMPRISING INTUMESCENT PARTICLES AND METHODS OF MAKING THE SAME

Polymer matrix composite comprising a porous polymeric network; and a plurality of intumescent particles distributed within the polymeric network structure; wherein the intumescent particles are present in a range from 15 to 99 weight percent, based on the total weight of the intumescent particles and the polymer (excluding the solvent); and wherein the polymer matrix composite volumetrically expands at least 2 times its initial volume when exposed to at least one temperature greater than 135° C.; and methods for making the same. The polymer matrix composites are useful, for example, as fillers, thermally initiated fuses, and fire stop devices. 1. A polymer matrix composite comprising:a porous polymeric network structure; anda plurality of intumescent particles distributed within the polymeric network structure, wherein the intumescent particles are present in a range from 15 to 99 weight percent, and wherein the polymer matrix composite volumetrically expands at least 2 times its initial volume when exposed to at least one temperature greater than 135° C.2. The polymer matrix composite of claim 1 , wherein the porous polymeric network structure comprises open cell pores.3. The polymer matrix composite of claim 1 , wherein the porous polymeric network structure comprises a phase-separated plurality of interconnected morphologies.4. The polymer matrix composite of claim 1 , wherein the polymer matrix composite has a density of at least 0.3 g/cm.5. The polymer matrix composite of claim 1 , wherein the polymer matrix composite has a density in a range from 0.3 to 2.3 g/cm.6. The polymer matrix composite of claim 1 , wherein the polymer matrix composite has a porosity at least 5 percent.7. The polymer matrix composite of claim 1 , wherein the polymer matrix composite has a porosity in the range from 10 to 80 percent.8. The polymer matrix composite of claim 1 , wherein the intumescent particles comprise at least one of sodium silicate claim 1 , intercalated graphite ...

Particulate water-absorbing agent and method for producing the same

It is an object to provide a particulate water-absorbing agent having a high fluid retention capacity under pressure and reduced moisture absorption blocking properties, and a method for producing the same. A particulate water-absorbing agent including a water-insoluble metal phosphate including an anion of a phosphoric acid compound and a divalent or trivalent metal cation, the water-insoluble metal phosphate having a crystallite size of less than 0.15 mm, wherein the particulate water-absorbing agent has a fluid retention capacity under pressure of 2.06 kpa of 20 g/g or more.

Medical devices having homogeneous charge density and methods for making same

The present invention relates to ionic silicone hydrogel polymers displaying improved lysozyme uptake, low contact angle and reduced water soluble polymeric ammonium salt uptake.

POLYMER MATRIX COMPOSITES COMPRISING INTUMESCENT PARTICLES AND METHODS OF MAKING THE SAME

Polymer matrix composite comprising a porous polymeric network; and a plurality of intumescent particles distributed within the polymeric network structure; wherein the intumescent particles are present in a range from 15 to 99 weight percent, based on the total weight of the intumescent particles and the polymer (excluding the solvent); and wherein the polymer matrix composite volumetrically expands at least 2 times its initial volume when exposed to at least one temperature greater than 135° C.; and methods for making the same. The polymer matrix composites are useful, for example, as fillers, thermally initiated fuses, and fire stop devices. 1. A polymer matrix composite comprising:a porous polymeric network structure; anda plurality of intumescent particles distributed within the polymeric network structure, wherein the intumescent particles are present in a range from 15 to 99 weight percent, and wherein the polymer matrix composite volumetrically expands at least 2 times its initial volume when exposed to at least one temperature greater than 135° C.2. The polymer matrix composite of claim 1 , wherein the polymer matrix composite has a density of at least 0.3 g/cm.3. The polymer matrix composite of claim 1 , wherein the polymer matrix composite has a porosity at least 5 percent.4. The polymer matrix composite of claim 1 , wherein the intumescent particles comprise at least one of sodium silicate claim 1 , intercalated graphite claim 1 , aluminum hydroxide claim 1 , magnesium hydroxide claim 1 , ammonium polyphosphate claim 1 , clay claim 1 , or vermiculite.5. The polymer matrix composite of claim 1 , wherein the intumescent particles have an average particle size in a range from 500 nanometers to 7000 micrometers.6. The polymer matrix composite of claim 1 , wherein the porous polymeric network structure comprises at least one of polyurethane claim 1 , polyester claim 1 , polyamide claim 1 , polyether claim 1 , polycarbonate claim 1 , polyimide claim 1 , ...

Multiplexed Expansion (MultiExM) Pathology

The invention provides a method for preparing an expanded biological specimen suitable for microscopic analysis. Expanding the biological sample can be achieved by anchoring biomolecules to a polymer network and swelling, or expanding, the polymer network, thereby moving the biomolecules apart as further described below. As the biomolecules are anchored to the polymer network isotropic expansion of the polymer network retains the spatial orientation of the biomolecules resulting in an expanded, or enlarged, biological specimen.

COMPUTING DEVICE WATER PROTECTION

A device can include a housing that defines an interior space and an exterior space and that includes air passages between the interior space and the exterior space; electronic components disposed in the interior space of the housing, where the electronic components include a processor and memory accessible to the processor; and a material that, upon exposure to water, transitions from a first state to a second state that protects at least one of the electronic components from damage. 1. A device comprising:a housing that defines an interior space and an exterior space and that comprises air passages between the interior space and the exterior space;electronic components disposed in the interior space of the housing, wherein the electronic components comprise a processor and memory accessible to the processor; anda material that, upon exposure to water, transitions from a first state to a second state that protects at least one of the electronic components from damage.2. The device of claim 1 , wherein claim 1 , upon drying claim 1 , the material transitions from the second state to the first state.3. The device of claim 1 , wherein claim 1 , upon drying claim 1 , the material transitions from the second state to a third state claim 1 , wherein the third state is a particulate state.4. The device of claim 1 , wherein the material is water absorbent.5. The device of claim 1 , wherein the material comprises a superabsorbent polymer.6. The device of claim 1 , wherein the material comprises a member selected from a group consisting of polyacrylate claim 1 , polyacrylamide copolymer claim 1 , ethylene maleic anhydride copolymer claim 1 , cross-linked carboxymethylcellulose claim 1 , polyvinyl alcohol copolymers claim 1 , cross-linked polyethylene oxide claim 1 , and starch grafted copolymer of polyacrylonitrile.7. The device of claim 1 , wherein claim 1 , in the first state claim 1 , an electrical circuit that comprises one of the electronic components is electronically ...

Super Absorbent Polymer

The present invention relates to a super absorbent polymer which exhibits totally well-balanced and excellent physical properties through the optimization of a centrifuge retention capacity, an absorbency under pressure, a liquid permeability and a gel strength. Such a super absorbent polymer is a super absorbent polymer comprising a cross-linked polymer in which a base polymer in the form of a powder obtained by polymerizing water-soluble ethylene-based unsaturated monomers having an acidic group in which at least a part thereof is neutralized is subjected to a surface crosslinking, and a centrifuge retention capacity (CRC), an absorbency under pressure (AUP), a liquid permeability (physiological saline solution flow conductivity; SFC), a horizontal gel strength (G′) or the like can satisfy a predetermined relationship of formula. 3. The method according to claim 1 , wherein one or more internal crosslinking agents are selected from the group consisting of bis(meth)acrylamide having 8 to 12 carbon atoms claim 1 , poly(meth)acrylate of polyol having 2 to 10 carbon atoms and poly(meth)allyl ether of polyol having 2 to 10 carbon atoms.4. The method according to claim 1 , wherein the super absorbent polymer has a particle size of 150 to 850 μm. This application is a divisional of U.S. application Ser. No. 15/315,111 filed on Nov. 30, 2016, which is a national phase entry under 35 U.S.C. § 371 of International Application No. PCT/KR2015/005957 filed Jun. 12, 2015, which claims the benefit of Korean Patent Application Nos. 10-2014-0071547 filed on Jun. 12, 2014, 10-2014-0177736 filed on Dec. 10, 2014, and 10-2015-0082881 filed on Jun. 11, 2015, the disclosures of which are incorporated herein by reference in their entirety.The present invention relates to a super absorbent polymer which exhibits totally well-balanced and excellent physical properties through the optimization of a centrifuge retention capacity, an absorbency under pressure, a liquid permeability and a gel ...

NANOGEL COMPOUND

It is provided a nanogel compound comprising a) a nanogel matrix component chosen from the group consisting of poly(N-isopropylacrylamide), poly(N-isopropyl methacrylamide), poly(N,N-diethylacrylamide), poly(N-ethylmethacrylamide), polyglycerol, polyglycerol derivatives and combinations thereof and b) a first or second conjugation component which forms an interpenetrating or semi-interpenetrating network with the nanogel matrix component. Thereby, the first conjugation component is a charged component chosen from the group consisting of acids, methacrylates, methacrylamides, acrylamides and combinations thereof and the second conjugation component is a conjugated polymer chosen from the group consisting of polyaniline, polypyrrole, poly(N—(C-C)alkyl aniline), poly(3,4-ethylenedioxythiophene), 2-ethylhexylcyclopentadithiophene-co-2,1,3-benzothiadiazole, 2-ethylhexylcyclopentadithiophene-co-2,1,3-benzoselenadiazole, and combinations thereof. 1. A nonogel compound comprising:a nanogel matrix component chosen from the group consisting of poly(N-isopropylacrylamide), poly(N-isopropyl methacrylamide), poly(N,N-diethylacrylamide), poly(N-ethylmethacrylamide), polyglycerol, polyglycerol derivatives and combinations thereof, anda first conjugation component which forms a semi-interpenetrating network with the nanogel matrix component,wherein the first conjugation component is a charged component chosen from the group consisting of acids, methacrylates, methacrylamides, acrylamides and combinations thereof.2. The nonogel compound according to claim 1 , wherein the first conjugation component is chosen from the group consisting of acrylic acid claim 1 , methacrylic acid claim 1 , 2-acrylamido-2-methyl-1-propanesulfonic acid claim 1 , 4-acryloyl amine-4-(carboxyethyl) heptanodioic acid claim 1 , di(C-C)alkylamino(C-C)alkyl methacrylate claim 1 , N-(3-((4-((3-aminopropyl)amino)butyl)amino)propyl)methacrylamide claim 1 , N-(3-((4-aminobutyl)amino)propyl)methacrylamide claim 1 , N ...

SUPER ABSORBENT POLYMER

The present invention relates to a super absorbent polymer which exhibits totally well-balanced and excellent physical properties through the optimization of a centrifuge retention capacity, an absorbency under pressure, a liquid permeability and a gel strength. Such a super absorbent polymer is a super absorbent polymer comprising a cross-linked polymer in which a base polymer in the form of a powder obtained by polymerizing water-soluble ethylene-based unsaturated monomers having an acidic group in which at least a part thereof is neutralized is subjected to a surface crosslinking, and a centrifuge retention capacity (CRC), an absorbency under pressure (AUP), a liquid permeability (physiological saline solution flow conductivity; SFC), a horizontal gel strength (G′) or the like can satisfy a predetermined relationship of formula. 3. The super absorbent polymer according to wherein the super absorbent polymer has CRC of 25 to 35 g/g.4. The super absorbent polymer according to wherein the super absorbent polymer has AUP of 21 to 30 g/g.5. The super absorbent polymer according to wherein the super absorbent polymer has a horizontal gel strength G′ of 6 claim 1 ,000 to 12 claim 1 ,000 Pa.6. The super absorbent polymer according to wherein the super absorbent polymer has SFC of 40 to 85 (·10cm·s/g)).7. The super absorbent polymer according to wherein the horizontal gel strength G′ of the super absorbent resin is measured by a method comprising the steps of:absorbing a physiological saline solution to the super absorbent polymer to swell the super absorbent polymer;positioning the swelled super absorbent polymer between plates of a rheometer having a predetermined interval to pressurize the two plate surfaces;confirming a shear strain in the linear viscoelastic regime section where storage modulus and loss modulus are steady, while increasing the shear strain using the rheometer under vibration; andmeasuring the storage modulus and the loss modulus of the swelled super ...

Preparation Method of Super Absorbent Polymer and Super Absorbent Polymer Therefrom

The present disclosure relates to a preparation method of a super absorbent polymer having excellent basic absorbency and liquid permeability at the same time by optimizing the degree of cross-linking of a base resin powder and a surface cross-linked layer, and a super absorbent polymer prepared therefrom. The preparation method of a super absorbent polymer includes forming a hydrogel polymer by cross-linking and polymerizing a monomer composition including a water-soluble ethylene-based unsaturated monomer having a degree of neutralization of less than 72 mol % and an internal cross-linking agent; drying, pulverizing and classifying the hydrogel polymer to form a base resin powder; forming a surface cross-linked layer by further cross-linking a surface of the base resin powder in the presence of a surface cross-linking agent and further neutralizing the base resin powder by treating the base resin powder with a basic solution during or after forming a surface cross-linked layer. 1. A preparation method of a super absorbent polymer , comprising:forming a hydrogel polymer by cross-linking and polymerizing a monomer composition comprising a water-soluble ethylene-based unsaturated monomer having at least partially neutralized acidic groups and an internal cross-linking agent;drying, pulverizing and classifying the hydrogel polymer to form a base resin powder; andforming a surface cross-linked layer by further cross-linking a surface of the base resin powder in the presence of a surface cross-linking agent,wherein the water-soluble ethylene-based unsaturated monomer has a degree of neutralization of less than 72 mol % during forming of the hydrogel polymer, andthe preparation method further comprises additionally neutralizing the base resin powder by treating the base resin powder with a basic solution during the forming of the surface cross-linked layer or after the forming of the surface cross-linked layer.2. The preparation method of a super absorbent polymer of ...

WATER-ABSORBENT RESIN COMPOSITION, METHOD OF MANUFACTURING THE SAME, AND ABSORBENT ARTICLE

A water-absorbent resin composition is provided which shows only small reduction in liquid permeability and limited coloring over time or in relation to another factor. The water-absorbent resin composition (particulate absorbent agent) of the present invention contains: a polycarboxylate-based water-absorbent resin as a primary component, the resin having a crosslinked structure formed by polymerization of an acid group-containing unsaturated monomer; and multivalent metal cations (preferably, on surfaces of particles (i.e., the water-absorbent resin composition)) wherein: the multivalent metal cations other than Fe cations account for 0.001 to 1 mass % of the water-absorbent resin; and the ratio of the Fe cations to the multivalent metal cations other than the Fe cations is less than or equal to 5.00 mass %. 1. A water-absorbent resin composition comprising:a polycarboxylate-based water-absorbent resin as a primary component, the resin having a crosslinked structure formed by polymerization of an acid group-containing unsaturated monomer; andaluminum cations,wherein:the aluminum cations account for 0.001 to 1 mass % of the water-absorbent resin;a ratio of Fe cations to the polycarboxylate-based water-absorbent resin is 0.01 to 1 ppm; anda ratio of Fe cations to the aluminum cations is 200 to 1,000 ppm.2. (canceled)3. (canceled)4. The water-absorbent resin composition of claim 1 , further comprising a chelating agent.5. (canceled)6. (canceled)7. The water-absorbent resin composition of claim 1 , wherein:the composition is of a particulate shape and contains the aluminum cations on surfaces thereof; andthe composition is surface crosslinked by a surface crosslinking agent other than the metal cations.8. (canceled)9. The water-absorbent resin composition of claim 1 , wherein the composition has a degraded liquid permeation rate of greater than 0 and less than or equal to 40 seconds.10. The water-absorbent resin composition of claim 1 , wherein the composition ...

TRIAZOLE COMPOUND

A triazole compound having a structure represented by the following Formula (1.2): 1. A triazole compound having a structure represented by the following Formula (1.2):wherein Rrepresents a hydrogen atom, an alkyl group, or an alkoxy group, p represents an integer of 1 to 5, and * represents a position at which the structure is bonded to the benzene ring. This is a Divisional of U.S. Ser. No. 14/758,750, filed Jun. 30, 2015, which is a 35 USC 371 U.S. national phase application of International application PCT/JP2014/050202, filed Jan. 9, 2014, which is based upon and claims the benefit of priority under 35 USC 119 from Japanese Patent Application No. 2013-002358, filed Jan. 10, 2013, Japanese Patent Application No. 2013-115431, filed May 31, 2013 and Japanese Patent Application No. 2013-158421, filed Jul. 31, 2013, the entire contents of all of which are incorporated herein by reference.The present invention relates to a resin composition, a triazole compound to be incorporated thereinto, an optical film and an optical lens, each of which is prepared from the resin composition, a polarizing plate, a circularly polarizing plate, and an image display device. In more specific, the present invention relates to a resin composition exhibiting a small humidity-dependent variation in optical values; a triazole compound to be incorporated thereinto; an optical film and an optical lens, each of which is prepared from the resin composition and exhibits a small humidity-dependent variation in optical values; and a polarizing plate, a circularly polarizing plate, and an image display device, each of which includes the optical film and exhibits excellent moisture resistance.Resins, such as acrylic resins, polyesters, polycarbonates, cellulose derivatives, polyvinyl alcohol, and polyimides, are highly transparent, lighter than inorganic glass, and easy to mold. Thus, these resins are widely used in the fields of optical technology and information equipment relevant to recording, ...

AGENT FOR DISPERSING ELECTRICALLY CONDUCTIVE CARBON MATERIAL, AND DISPERSION OF ELECTRICALLY CONDUCTIVE CARBON MATERIAL

Provided is an agent for dispersing an electrically conductive carbon material, in which the agent consists of a polymer which has an oxazoline group in a side chain and which is obtained by using an oxazoline group-containing monomer such as that represented by formula (1) for example, and in which the agent exhibits excellent dispersion of an electrically conductive carbon material and produces a thin film that exhibits excellent adhesion to a current collection substrate when formed into a thin film together with the electrically conductive carbon material. 1. A dispersion of an electrically conductive carbon material , characterized by comprising:a conductive carbon material-dispersing agent consisting of a polymer having a pendant oxazoline group,an electrically conductive carbon material; anda solvent,wherein the conductive carbon material is dispersed in the solvent.2. The conductive carbon material dispersion of claim 1 , wherein the solvent is water.3. The conductive carbon material dispersion of or claim 1 , further comprising a crosslinking agent.4. The conductive carbon material dispersion of claim 1 , further comprising a matrix polymer.5. An electrically conductive thin-film-forming composition comprising the conductive carbon material dispersion of .6. An electrically conductive thin-film obtained from the conductive thin film-forming composition of .7. The conductive thin-film of for use as an electrically conductive bonding layer that is interposed between claim 6 , and bonds together claim 6 , a current-collecting substrate which make up an energy storage device electrode and an active material layer.8. A composite current collector for an energy storage device electrode claim 6 , comprising a current-collecting substrate and claim 6 , formed on the substrate claim 6 , an electrically conductive bonding layer consisting of the conductive thin-film of .9. An electrode for an energy storage device claim 8 , comprising the composite current collector ...

INTERPENETRATING POLYMER NETWORKS

IPN compositions and methods of making the same are provided. The IPN compositions can include a water swellable, water permeable IPN or semi-IPN member with a first polymer network including a hydrophobic thermoset or thermoplastic polymer, a second polymer network including a non-ionic polymer, and a third polymer network including an ionic polymer containing sulfonic acid functional groups that are otherwise difficult to form composites with hydrophobic polymers. The IPN compositions can be used in orthopedic implants or in mechanical applications as a bearing material. 1. An interpenetrating polymer network (IPN) or semi-IPN member comprising a first polymer network including a hydrophobic thermoset or thermoplastic polymer , a second polymer network comprising a polymerized non-ionic monomer , and a third polymer network including an ionic polymer containing sulfonic acid groups , wherein the second network can be non-ionic or partially-ionic , and wherein the third network can be ionic or partially non-ionic.2. The IPN or semi-IPN member of claim 1 , wherein the IPN or semi-IPN member comprises a lubricious surface having a coefficient of friction of less than about 0.1.3. The IPN or semi-IPN member of claim 1 , wherein the first polymer network comprises a polyurethane.4. The IPN or semi-IPN member of claim 1 , wherein the second polymer network comprises one or more polymerized non-ionic monomers selected from dimethylacrylamide (DMAA) claim 1 , acrylamide claim 1 , N-isopropyl acrylamide (NIPAAm) claim 1 , hydroxyethyl acrylate claim 1 , hydroxyethyl methacrylate claim 1 , vinyl alcohol claim 1 , methyl acrylate claim 1 , hydroxyethyl acrylamide claim 1 , hydroxyethyl methacrylamide claim 1 , and N-vinyl pyrrolidone.5. The IPN or semi-IPN member of claim 1 , wherein the second polymer network comprises a plurality of different monomers.6. The IPN or semi-IPN member of claim 5 , wherein the second polymer network comprises a mixture of an ionic monomer and ...

HYDROGEL FORMING COMPOSITION AND HYDROGEL PRODUCED THEREFROM

There is provided a hydrogel having a self-supporting property that can be produced only through mixing at room temperature, and there is provided a method by which the hydrogel can be manufactured by using industrially easily available raw materials. A hydrogel-forming composition that is capable of forming a hydrogel having a self-supporting property, the hydrogel-forming composition characterized by including: a water-soluble organic polymer having an organic acid salt structure or an organic acid anion structure; a silicate salt; and a dispersant for the silicate salt, having a weight average molecular weight of 200 to 20,000 and having hydrolysis resistance. 1. A hydrogel-forming composition that is capable of forming a hydrogel having a self-supporting property , the hydrogel-forming composition comprising:a water-soluble organic polymer having an organic acid salt structure or an organic acid anion structure;a silicate; anda dispersant for the silicate salt, having a weight average molecular weight of 200 to 20,000 and having hydrolysis resistance.2. The hydrogel-forming composition according to claim 1 , whereinthe dispersant is a polycarboxylate salt-based dispersant.3. The hydrogel-forming composition according to claim 2 , whereinthe dispersant is sodium polyacrylate or ammonium polyacrylate.4. The hydrogel-forming composition according to claim 1 , whereinthe dispersant is a polyalkylene glycol-based dispersant.5. The hydrogel-forming composition according to claim 4 , whereinthe dispersant is polyethylene glycol or polypropylene glycol.6. The hydrogel-forming composition according to claim 1 , whereinthe water-soluble organic polymer is a water-soluble organic polymer having a carboxylate salt structure or a carboxy anion structure.7. The hydrogel-forming composition according to claim 6 , whereinthe water-soluble organic polymer is a fully neutralized or partially neutralized polyacrylate salt.8. The hydrogel-forming composition according to claim 7 , ...

Water-absorbing polymer structure having improved permeability and absorption under pressure

The present invention relates to a process for the preparation of water-absorbing polymer structures, comprising the following process steps: i) providing an untreated, water-absorbing polymer structure; and ii) bringing the untreated, water-absorbing polymer structure into contact with a salt comprising a divalent or higher-valent cation of a metal and at least one organic base as anion. The invention relates also to the water-absorbing polymer structures obtainable by that process, to water-absorbing polymer structures, to a composite comprising a water-absorbing polymer structure and a substrate, to a process for the preparation of a composite, to the composite obtainable by that process, to chemical products, such as foams, molded articles and fibers comprising water-absorbing polymer structures or a composite, to the use of water-absorbing polymer structures or of a composite in chemical products and to the use of a salt in the treatment of the surface of water-absorbing polymer structures.

METHOD FOR MANUFACTURING CEMENT

A method of expanding expandable polymeric microspheres including contacting an aqueous slurry including unexpanded, expandable polymeric microspheres with heat in-situ during manufacture of cement. A method of manufacturing cement includes: (i) contacting an aqueous slurry of unexpanded, expandable polymeric microspheres with heat proximate to and/or during said manufacturing of cement to create expanded polymeric microspheres; (ii) optionally pre-wetting the expanded polymeric microspheres; and (iii) mixing the expanded polymeric microspheres with cement. 1. A method of expanding expandable polymeric microspheres comprising contacting an aqueous slurry comprising unexpanded , expandable polymeric microspheres with heat proximate to and/or during manufacture of cement for use in a cementitious composition , wherein the heat is provided by at least one of the following: a heat exchanger; microwave radiation; or an electrical resistance heater.2. The method of claim 1 , wherein the method comprises contacting an aqueous slurry comprising unexpanded claim 1 , expandable polymeric microspheres with heat in-situ during said manufacture of cement.3. The method of claim 1 , wherein said contacting the aqueous slurry comprising the unexpanded claim 1 , expandable polymeric microspheres with heat in-situ during said manufacture of cement comprises contacting the aqueous slurry comprising the unexpanded claim 1 , expandable polymeric microspheres with heat prior to mixing the expanded polymeric microspheres with the cement during manufacture of cement.4. The method of claim 3 , wherein the flow of the aqueous slurry is restricted and/or controlled.5. The method of claim 1 , wherein said contacting the aqueous slurry comprising the unexpanded claim 1 , expandable polymeric microspheres with heat in-situ during said manufacture of cement comprises contacting the aqueous slurry comprising the unexpanded claim 1 , expandable polymeric microspheres with heat to expand the ...

Method for manufacturing a construction material

A method of expanding expandable polymeric microspheres including contacting an aqueous slurry including unexpanded, expandable polymeric microspheres with heat in-situ during manufacture of a construction material. A method of manufacturing a construction material includes: (i) contacting an aqueous slurry of unexpanded, expandable polymeric microspheres with heat proximate to and/or during said manufacturing of the construction material to create expanded polymeric microspheres; (ii) optionally pre-wetting the expanded polymeric microspheres; and (iii) mixing the expanded polymeric microspheres with the construction material.

WATER-DISINTEGRABLE RESIN COMPOSITION AND MATERIAL SET FOR PRODUCING THREE-DIMENSIONAL OBJECT USING SAME, AND THREE-DIMENSIONAL OBJECT PRODUCING METHOD

Provided is a water-disintegrable resin composition including at least a water-soluble resin (A) and an acidic substance (B). 1. A water-disintegrable resin composition comprising:a water-soluble resin (A): andan acidic substance (B).2. The water-disintegrable resin composition according to claim 1 , further comprisingone or both of an easily water-soluble substance (C) and a water-swellable substance (D).3. The water-disintegrable resin composition according to claim 1 , wherein the water-soluble resin (A) comprises at least one selected from the group consisting of polyvinyl alcohol claim 1 , carboxymethyl cellulose claim 1 , polyvinyl pyrrolidone claim 1 , polyacrylic acid claim 1 , polyvinyl sulfonic acid claim 1 , polyethylene oxide claim 1 , polyethylene glycol claim 1 , maleic acid-based copolymers claim 1 , and chitosans.4. The water-disintegrable resin composition according to claim 1 , wherein the acidic substance (B) comprises at least one selected from the group consisting of an inorganic acidic substance and an organic acidic substance claim 1 , andwherein a content of the acidic substance (B) is 1% by mass or greater relative to the water-soluble resin (A).5. The water-disintegrable resin composition according to claim 4 , wherein the acidic substance (B) comprises at least one selected from the group consisting of carboxylic acid claim 4 , carboxylic anhydrides claim 4 , and metal salts of the carboxylic acid and the carboxylic anhydrides.6. The water-disintegrable resin composition according to claim 4 , wherein the acidic substance (B) comprises at least one selected from the group consisting of citric acid claim 4 , maleic acid or maleic anhydride claim 4 , fumaric acid claim 4 , oxalic acid claim 4 , benzoic acid claim 4 , pyruvic acid claim 4 , and amino acid.7. The water-disintegrable resin composition according to claim 2 , wherein the easily water-soluble substance (C) comprises at least one selected from the group consisting of sucrose claim ...

FILLER FOR CONCRETE STRUCTURES, CONCRETE STRUCTURE, AND PRODUCTION METHOD THEREFOR

A filler for a concrete structure is provided. The filler includes an organic-inorganic composite hydrogel (A). The organic-inorganic composite hydrogel (A) has a three-dimensional network structure that includes a polymer of a water-soluble organic monomer and includes a water-swellable clay mineral. The filler has a water pressure resistance of 0.2 MPa or greater. The filler for a concrete structure has excellent workability and various excellent physical properties in terms of, for example, adhesion to wet surfaces and resistance to water pressure. Accordingly, the filler is suitable for use as a filler for joints and cracks of concrete structural objects. 1. A filler for a concrete structure , the filler comprising an organic-inorganic composite hydrogel (A) , the organic-inorganic composite hydrogel (A) having a three-dimensional network structure that includes a polymer of a water-soluble organic monomer and includes a water-swellable clay mineral , the filler having a water pressure resistance of 0.2 MPa or greater.2. The filler for a concrete structure according to claim 1 , wherein essential materials from which the organic-inorganic composite hydrogel (A) is formed include a water-soluble organic monomer claim 1 , a water-swellable clay mineral claim 1 , a polymerization initiator claim 1 , and water.3. A concrete structure in which the filler for a concrete structure according to fills a gap in a concrete structural object or is disposed on a surface of the concrete structural object.4. A method for producing the filler for a concrete structure according to claim 1 , the method comprising forming the organic-inorganic composite hydrogel (A) in a gap in a concrete structural object or on a surface of the concrete structural object.5. A method for producing a concrete structure claim 4 , the method comprising filling a gap in a concrete structural object with the filler obtained by using the method according to . The present invention relates to a filler ...

ELECTRICALLY CONDUCTIVE COMPOSITION AND BIOSENSOR

The electrically conductive composition includes an electrical conductive polymer, a binder resin, and at least one of a cross-linking agent and a plasticizer. 1. An electrically conductive composition comprising:an electrical conductive polymer,a binder resin, andat least one of the cross-linking agent and plasticizer.2. The electrically conductive composition according to claim 1 , comprising both of the cross-linking agent and the plasticizer.3. The electrically conductive composition according to claim 1 , whereinthe binder resin is a water-soluble polymer.4. The electrically conductive composition according to claim 1 , whereinthe cross-linking agent contains at least one selected from the group consisting of a zirconium compound, an isocyanate compound, and an aldehyde compound.5. The electrically conductive composition according to claim 1 , whereinthe plasticizer contains a polyol compound.6. A biosensor comprising:a wire layer,a probe that makes contact with a surface of a living body, anda connector that electrically connects the wire layer with the probe,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'wherein the connector is prepared from the electrically conductive composition according to .'} The present invention relates to an electrically conductive composition and a biosensor.For the electrically conductive composition, a mixture of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT-PSS) and polyvinyl alcohol (PVA) has been known (ref: for example, Non-Patent Document 1).The mixture has excellent electrical conductivity and formability, and an electrically conductive object formed from this mixture (electrically conductive film) has excellent durability, tenacity, and flexibility.However, even more excellently high tenacity (To be specific, achieving both tensile strength and tensile elongation (elongation)) and flexibility may be required for the electrically conductive object.The present invention provides an electrically ...

Silicone hydrogel lens with a crosslinked hydrophilic coating

The invention is related to a cost-effective method for making a silicone hydrogel contact lens having a crosslinked hydrophilic coating thereon. A method of the invention involves heating a silicone hydrogel contact lens in an aqueous solution in the presence of a water-soluble, highly branched, thermally-crosslinkable hydrophilic polymeric material having positively-charged azetidinium groups, to and at a temperature from about 40° C. to about 140° C. for a period of time sufficient to covalently attach the thermally-crosslinkable hydrophilic polymeric material onto the surface of the silicone hydrogel contact lens through covalent linkages each formed between one azetidinium group and one of the reactive functional groups on and/or near the surface of the silicone hydrogel contact lens, thereby forming a crosslinked hydrophilic coating on the silicone hydrogel contact lens. Such method can be advantageously implemented directly in a sealed lens package during autoclave.

SINGLE-SHAFT EXTRUDER AND USE OF A SINGLE-SHAFT EXTRUDER, AND METHOD FOR ALTERING MORPHOLOGY OF A SUPERABSORBENT POLYMER GEL USING A SINGLE-SHAFT EXTRUDER

A single-screw extruder for changing a morphology of a superabsorbent polymer, specifically a polymer gel. The single-screw extruder has an input aperture, a channel, a screw and an output aperture. The screw has a pitch value of a pitch of the screw flights along the conveying zone of the channel, where the channel has a mixing-element arrangement with at least one mixing element which protrudes into the channel of the single-screw extruder and which is configured for the mixing of the SAP polymer gel.

Silicone hydrogel lens with a crosslinked hydrophilic coating

The invention is related to a cost-effective method for making a silicone hydrogel contact lens having a crosslinked hydrophilic coating thereon. A method of the invention involves heating a silicone hydrogel contact lens in an aqueous solution in the presence of a water-soluble, highly branched, thermally-crosslinkable hydrophilic polymeric material having positively-charged azetidinium groups, to and at a temperature from about 40° C. to about 140° C. for a period of time sufficient to covalently attach the thermally-crosslinkable hydrophilic polymeric material onto the surface of the silicone hydrogel contact lens through covalent linkages each formed between one azetidinium group and one of the reactive functional groups on and/or near the surface of the silicone hydrogel contact lens, thereby forming a crosslinked hydrophilic coating on the silicone hydrogel contact lens. Such method can be advantageously implemented directly in a sealed lens package during autoclave.

Fire suppression fluid dispensing device

Disclosed is an assembly for discharging hydrated super absorbent polymer into a confined space for protection of a lineman or firefighter from a flash fire and fire suppression. A pressurized tank is filled with hydrated super absorbent polymer and connected to a conduit that is constructed and arranged to interchange various nozzles for personnel protection and fire suppression. The hydrated super absorbent polymer is discharged through a solenoid valve which can be operated by the individual operating within the space with a switch, an individual operating the control panel mounted in a utility truck or activated by a heat sensor in the confined space. 1. A fire suppression fluid dispensing assembly for deployment in a confined space comprising:a storage container holding a predetermined amount of hydrated super absorbent polymer and compressed gas;a conduit fluidly connected to said storage container constructed and arranged to be positioned in a confined space;said conduit having a plurality of orifices constructed and arranged to deliver a predetermined amount of said hydrated super absorbent polymer;a control valve positioned between said pressurized storage container and said conduit, said control valve operable to allow said hydrated super absorbent polymer to be delivered to said orifices through said conduit for dispensing.2. The fluid dispensing assembly according to wherein said storage container is pressurized with a compressed gas.3. The fluid dispensing assembly according to wherein said orifices are arranged to provide overlapping spray patterns of said hydrated super absorbent polymer.4. The fluid dispensing assembly according to wherein said valve includes an electrically actuated solenoid operated by an electric actuating switch.5. The fluid dispensing assembly according to wherein said electric actuating switch is manually operated.6. The fluid dispensing assembly according to wherein said actuating switch is thermally operated upon the presence ...

POLYMERS AND NANOGEL MATERIALS AND METHODS FOR MAKING AND USING THE SAME

Provided are compositions comprising a block copolymer of the following formula: [A]-B-[Q], wherein [A] is a polymer that has an affinity for a substrate; B is a linking group comprising an optionally-substituted, polyvalent linking group having a molecular weight of no more than 1000 g/mole; and [Q] comprises a semi-crosslinked, ungelled polymer derived from copolymerization of an ethylenically unsaturated monomer with a poly-functional ethylenically unsaturated monomer. Such block copolymers are cross-linked via the [Q] segment, but not macroscopically gelled. The [Q] segment is hydrophilic and has a degree of polymerization in the range of about 10 to about 10,000. The [A] segment is located on at least one terminal end of said block copolymer, comprises between about 1 and about 200 repeating units. The block copolymer is associated, via the linear substrate associative segment with a surface comprising at least one hydrophobic site, such as a silicone hydrogel. The polymers may be incorporated into a formulation from which the silicone hydrogel is made or may be contacted with the silicone hydrogel post-formation. 145-. (canceled)46. An ophthalmic device comprising a silicone-containing polymer and at least one stable , block copolymer that is cross-linked but not macroscopically gelled comprising in said block copolymer's backbone , a hydrophilic segment that has a degree of polymerization in the range of about 10 to about 10 ,000 , and a linear substrate associative segment on at least one terminal end of said block copolymer , wherein said silicone segment comprises between about 1 and about 200 siloxy units , wherein said block copolymer is associated , via the linear substrate associative segment with a surface comprising at least one hydrophobic site and provides said ophthalmic device with a reduction in lipid uptake compared to the silicone-containing polymer of at least about 20%.47. The ophthalmic device of wherein said lipid uptake is less than about ...

Highly-swellable polymeric films and compositions comprising the same

Highly-swellable polymeric films are provided. Aspects also include ingestible compositions that include the highly-swellable polymeric film and an ingestible component. Aspects further include methods of making and using the compositions.

HYDROGEL PARTICLE AND METHOD FOR PRODUCING SAME, CELL OR CELL STRUCTURE EACH ENCLOSING HYDROGEL PARTICLE THEREIN, METHOD FOR EVALUATING ACTIVITY OF CELL USING HYDROGEL PARTICLE, AND USE OF HYDROGEL PARTICLE AS SUSTAINED RELEASE PREPARATION

The present invention addresses the problem of providing: a hydrogel particle which can be taken into a cell by the action of the cell and can control the release of a magnetic particle enclosed therein into the cell so as to retain the magnetic particle in the cell for a long period; a method for producing the hydrogel particle; a cell or a cell structure each enclosing the hydrogel particle therein; and a method for evaluating the activity of a cell using the hydrogel particle. The present invention solves the problem by a hydrogel particle including: a domain which is composed of a first hydrogel; a matrix which encloses the domain and is composed of a second hydrogel having a different crosslinking degree or composition from that of the first hydrogel; and a magnetic particle which is supported by at least the first hydrogel. 1. A hydrogel particle , comprising:a domain formed of a first hydrogel;a matrix encapsulating the domain and formed of a second hydrogel different in degree of crosslinking or composition from the first hydrogel; anda magnetic material particle supported on at least the first hydrogel.2. The hydrogel particle according to claim 1 , wherein the magnetic material particle is supported on the first hydrogel and the second hydrogel.3. The hydrogel particle according to claim 1 , wherein the hydrogel particle has an average particle size of 30 nm or more and 2000 nm or less.4. The hydrogel particle according to claim 1 , wherein at least one of the first hydrogel and the second hydrogel is gelatin.5. The hydrogel particle according to claim 4 , wherein the second hydrogel is gelatin.6. The hydrogel particle according to claim 1 , wherein the first hydrogel is lower in intercellular degradability than the second hydrogel.7. The hydrogel particle according to claim 1 , wherein the magnetic material particles have an average particle size of 2 nm or more and 25 nm or less.8. The hydrogel particle according to claim 1 , wherein the magnetic ...

METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES BY SUSPENSION POLYMERIZATION

A process for producing water-absorbing polymer particles by suspension polymerization and thermal surface postcrosslinking, wherein the agglomerated base polymer obtained by suspension polymerization has a centrifuge retention capacity of at least 37 g/g and the thermal surface postcrosslinking is conducted at 140 to 220° C. 1. Water-absorbing polymer particles having a centrifuge retention capacity of 20 to 36 g/g , an absorption under a pressure of 0.0 g/cmof 30 to 60 g/g , an absorption under a pressure of 49.2 g/cmof 16 to 32 g/g , a permeability of at least 20×10cms/g , and less than 15% by weight of extractables , wherein the polymer particles are agglomerated.2. Water-absorbing polymer particles according to claim 1 , having a centrifuge retention capacity of 29 to 33 g/g.3. Water-absorbing polymer particles according to claim 1 , having an absorption under a pressure of 0.0 g/cmof 42 to 48 g/g.4. Water-absorbing polymer particles according to claim 1 , having an absorption under a pressure of 49.2 g/cmof 20 to 26 g/g.5. Water-absorbing polymer particles according to claim 1 , having a permeability of at least 40×10cms/g.6. Water-absorbing polymer particles according to claim 1 , having less than 10% by weight of extractables.7. Water-absorbing polymer particles according to claim 1 , having a bulk density of at least 0.8 g/cm.8. Water-absorbing polymer particles according to claim 1 , wherein the proportion of particles having a particle size of 300 to 600 μm is at least 30% by weight.9. A hygiene article comprising(A) an upper liquid-permeable layer,(B) a lower liquid-impermeable layer,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(C) a liquid-absorbing storage layer between layer (A) and layer (B), comprising from 0% to 30% by weight of a fibrous material and from 70 to 100% by weight of water-absorbing polymer particles according to ,'}{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(D) optionally an acquisition and distribution layer between ...

Method of Preparing Superabsorbent Polymer and Superabsorbent Polymer

Provided are a superabsorbent polymer and a preparation method thereof. More particularly, provided are a superabsorbent polymer including a fine powder reassembly, wherein the superabsorbent polymer exhibits excellent absorption performances and absorption rate, and does not cause deterioration of physical properties such as water retention capacity (CRC) or absorbency under pressure (AUP), and a preparation method thereof.

Water absorbent resin composition, absorbent, and absorbent article

Water-absorbing agent and production process therefor

The present invention provides: a process for producing a water-absorbing agent by using a crosslinking agent of high safety, wherein the water-absorbing agent is excellent in the absorption capacities under no load and under a load and further in the blocking ratio under a load, and can display excellent absorption properties even if the weight percentage of the water-absorbent resin (resin concentration) is high when the water-absorbent resin is used for materials such as sanitary materials; and such a water-absorbing agent. The water-absorbent resin is mixed and treated with an oxazoline compound,, wherein the oxazoline compound has at least three structural units of general formula (1) below: wherein R 1 ∼R 4 separately denote a hydrogen atom, an alkyl group, an aromatic group, a halogen group, a substituted alkyl group, or a substituted aromatic group.

Super absorbent polymer and its preparation method

본 발명은 표면 가교층 내부의 베이스 수지 분말의 가교 구조가 최적화되어, 보다 향상된 겔 강도를 가지며, 보수능(CRC) 및 가압 흡수능(AUP)이 함께 향상된 우수한 물성을 나타내는 고흡수성 수지 및 이의 제조 방법에 관한 것이다. 상기 고흡수성 수지는 적어도 일부가 중화된 산성기를 갖는 수용성 에틸렌계 불포화 단량체의 제 1가교 중합체를 포함하는 베이스 수지 분말; 및 상기 제 1 가교 중합체가 추가 가교된 제 2 가교 중합체를 포함하고, 상기 베이스 수지 분말 상에 형성되어 있는 표면 가교층을 포함하고, 상기 제 1 가교 중합체에는 가교 결합, 산소 함유 결합(-O-) 또는 질소 함유 결합(-NR-; R은 수소 또는 탄소수 1 내지 3의 알킬기 또는 아미드 결합)을 매개로 무기물 입자가 화학적으로 결합되어 있는 것으로 될 수 있다. INDUSTRIAL APPLICABILITY The present invention relates to a superabsorbent resin exhibiting excellent physical properties in which the cross-linking structure of the base resin powder in the surface cross-linked layer is optimized, has improved gel strength, improved CRC and pressure absorption capacity (AUP) . Wherein the superabsorbent resin comprises: a base resin powder comprising a first crosslinked polymer of a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups; And a surface cross-linked layer formed on the base resin powder, wherein the first cross-linked polymer comprises a cross-linked, oxygen-containing bond (-O- ) Or a nitrogen-containing bond (-NR-; R is hydrogen or an alkyl group or an amide bond having 1 to 3 carbon atoms).

具有交联亲水涂层的硅氧烷水凝胶透镜

本发明涉及一种制备其上具有交联亲水涂层的硅氧烷水凝胶接触透镜的划算方法。本发明方法涉及将硅氧烷水凝胶接触透镜在水溶液中在具有正电性氮杂环丁烷 基团的水溶性、高度支化可热交联亲水性聚合物材料的存在下加热至40-140℃的温度并在40-140℃的温度下足够的时间以使可热交联亲水性聚合物材料通过各自在一个氮杂环丁烷

超吸聚合物的连续制备方法

本发明涉及超吸聚合物的连续制备方法，该方法包括：(a)提供包含溶解氧的酸性液态含水单体混合物，选择单体以在聚合之后提供超吸聚合物；(b)将所述含水单体混合物连续送至反应器；(c)将碳酸盐或碳酸氢盐的来源引入所述含水单体混合物，然后进入反应器中，从而形成包含二氧化碳及至少一部分所述溶解的氧的气相，所述气相分散在液相中；(d)在进入反应器中之前或之后立即对气/液混合物实施至少部分的相分离，及至少部分地去除所分离的气相；(e)对反应器中的液相实施自由基聚合以获得超吸聚合物；及(f)从所述反应器连续取出所述超吸聚合物。

超吸聚合物的制备方法

本发明涉及超吸聚合物的制备方法，该方法包括：(a)制备所选的用于在聚合之后提供超吸聚合物的单体的含水混合物，(b)将所述单体混合物送至反应器，(c)含水单体混合物在所述反应器中进行自由基聚合以获得超吸聚合物凝胶，及(d)从所述反应器取出所述超吸聚合物，(e)整理从所述反应器取出的所述超吸聚合物以获得最终产品，其中将包含碳酸盐和/或碳酸氢盐的碱性水性介质送至超吸聚合物凝胶。

Compositions comprising a thermoplastic component and superabsorbent polymer

The present invention relates to a composition comprising a thermoplastic component and at least one superabsorbent polymer, methods of use for such composition, and articles comprising such composition. The composition may be formed into a film layer or applied to an article with various hot melt adhesive application techniques. The composition is useful for a variety of end-uses, particularly for use in disposable absorbent articles such as disposable diapers, feminine napkins and medical dressings.

Compositions comprising a thermoplastic component and superabsorbent polymer

The present invention relates to a composition comprising a thermoplastic component and at least one superabsorbent polymer, methods of use for such composition, and articles comprising such composition. The composition may be formed into a film layer or applied to an article with various hot melt adhesive application techniques. The composition is useful for a variety of end-uses, particularly for use in disposable absorbent articles such as disposable diapers, feminine napkins and medical dressings.

Heat Regulating Article With Moisture Enhanced Temperature Control

An article having reversible thermal regulation properties comprises a substrate and a functional polymeric phase change material having a heat carrying capacity. The article is further characterized by a chemical function having moisture adsorbing properties that increase the heat carrying capacity.

吸水剤、その製法、吸水剤を用いた吸収体並びに吸収性物品

(57)【要約】 【課題】 どのような状態においても高い吸収性能を発 揮する吸収性物品を容易に製造することができる吸収剤 を提供することを目的とする。 【解決手段】 水溶性ビニルモノマー（ａ１）及び／又 は加水分解により（ａ１）となるビニルモノマー（ａ ２）並びに架橋剤（ｂ）を必須構成単位とする架橋重合 体を含み、式（１）及び（２）を満たしてなる吸水剤を 用いる。 【数１】 ［式中、（ｘ１）は生理食塩水に１時間浸漬後の吸水剤 の保水量（ｇ／ｇ）であり、（ｘ２）は０．９ｐｓｉの 荷重下における生理食塩水に１時間浸漬後の吸水剤の吸 収量（ｇ／ｇ）である。また、（Ｙ）は吸水剤を生理食 塩水に１時間浸漬後の０．３ｐｓｉの荷重下における生 理食塩水の通液速度（ｍｌ／分）である]

Water-absorbing resin particles and method for producing the same

充分な保水量を持ち、初期の液拡散性および膨潤したゲル間の反重力方向に対する通液性に優れた吸水性樹脂粒子を提供する。本発明は、水溶性ビニルモノマー（ａ１）及び／又は加水分解により水溶性ビニルモノマー（ａ１）となるビニルモノマー（ａ２）、並びに架橋剤（ｂ）を必須構成単位とする架橋重合体（Ａ）と、酸化アルミニウムを１〜２０重量％含むタルク（ｃ）とを含有する吸水性樹脂粒子であり、前記タルク（ｃ）を前記重合体（Ａ）の重量に基づいて０．１〜１０重量％含有する吸水性樹脂粒子；前記架橋重合体（Ａ）と、前記タルク（ｃ）とを混合する工程を含む吸水性樹脂粒子の製造方法である。 (EN) Provided are water-absorbent resin particles having a sufficient water retention capacity and excellent in initial liquid diffusivity and liquid permeability in the antigravity direction between swollen gels. The present invention relates to a water-soluble vinyl monomer (a1) and / or a vinyl monomer (a2) which becomes a water-soluble vinyl monomer (a1) by hydrolysis, and a cross-linked polymer (A) containing a cross-linking agent (b) as an essential constituent unit. And talc (c) containing 1 to 20% by weight of aluminum oxide, the talc (c) being 0.1 to 10% by weight based on the weight of the polymer (A). Water-absorbent resin particles contained: A method for producing water-absorbent resin particles, which comprises a step of mixing the crosslinked polymer (A) and the talc (c).

吸水性樹脂粒子、これを含む吸収体及び吸収性物品

吸収させる液体と接触した初期の高い吸収速度や液拡散性を発揮し、ドライ性が優れ、更にカブレ等の問題がない吸水性樹脂粒子を提供する。本発明は水溶性ビニルモノマー及び／又は加水分解性ビニルモノマー並びに架橋剤を必須構成単位とする架橋重合体（Ａ１）を含んでなり、重量平均粒子径（μｍ）が２００～４００であり、下記式で表されるＳＰＡＮ値が１．０以下であり、（Ａ１）のＤＷ法による１分後の吸収量が１０～１５ｍｌ／ｇであり、５分後の吸収量が４５～５５ｍｌ／ｇである吸水性樹脂粒子。 ＳＰＡＮ＝［Ｄ（９０％）－Ｄ（１０％）］／Ｄ（５０％）≦１．０ （Ｄ（１０％）は、累積重量分率が１０重量％となる粒子径、Ｄ（５０％）は５０重量％となる粒子径、Ｄ（９０％）は９０重量％となる粒子径。）

Spray-drying oil recovery process

A process for recovering oil from a water-soluble vinyl-addition polymer-containing water-in-oil emulsion or water-in-oil microemulsion spray-drying process, comprising: (a) condensing spray-dry process-generated oil and water to obtain condensed oil and condensed water; and (b) separating said condensed oil from said condensed water wherein said condensed oil is substantially free of non-gaseous polymerization-debilitating substances.

Method of reclaiming oil spray drying

FIELD: oil reclaiming methods. SUBSTANCE: methods consists in spray drying of water-in-oil emulsion or microemulsion containing water-soluble or swelling-in-water vinyl polymer; method consists of the following phases: (a) spray drying of dispersion, emulsion, water-in-oil emulsion or microemulsion containing water-soluble or swelling-in-water vinyl polymer; (b) co-condensation of oil and water generated at spray drying, thus obtaining condensed oil and condensed water and (c) separation of condensed oil from condensed water, thus obtaining reclaimed oil which contains not gaseous agents in the amount of lesser than 0.1% by mass of total mass which impede polymerization. EFFECT: possibility of re-using reclaimed oil without effecting polymer properties. 17 cl, 11 tbl с о608с ПЫ с» (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ `” 2 180 905 (51) МПК” (13) С2 С 08 4 3/12 (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 99101092/04, 05.06.1997 (24) Дата начала действия патента: 05.06.1997 (30) Приоритет: 21.06.1996 $ 08/667,782 (43) Дата публикации заявки: 27.12.2000 (46) Дата публикации: 27.03.2002 (56) Ссылки: Ч$ 4035317 А, 12.07.1971. ЕР 0180366 А2, 07.05.1986. 0$ 4212184 А, 15.07.1980. КУ 2032698 СЛ, 10.04.1995. (85) Дата перевода заявки РСТ на национальную фазу: 21.01.1999 (86) Заявка РСТ: 0$ 97/10056 (05.06.1997) (87) Публикация РСТ: М/О 97/48750 (24.12.1997) (98) Адрес для переписки: 129010, Москва, ул. Большая Спасская 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", Е.В.Томской (71) Заявитель: САЙТЕК ТЕКНОЛОДЖИ КОРП. (1$) (72) Изобретатель: ДЭВИС Вилльям Блор (ЦЗ), ХИЛИ Джон Эдвард (45$) (73) Патентообладатель: САЙТЕК ТЕКНОЛОДЖИ КОРП. (4$) (74) Патентный поверенный: Томская Елена Владимировна (54) СПОСОБ РЕГЕНЕРАЦИИ МАСЛА ИЗ РАСПЫЛИТЕЛЬНОЙ СУШКИ (57) Способ регенерации масла из распылительной сушки эмульсии типа вода-в-масле или микроэмульсии типа вода-в-масле, содержащей водорастворимый или набухающий в воде ...

가교된 친수성 코팅을 갖는 실리콘 히드로겔 렌즈

실리콘 히드로겔 콘택트 렌즈의 비용 효율적인 제조 방법은 가교된 친수성 코팅의 적용을 포함한다. 본 발명의 방법은 실리콘 히드로겔 콘택트 렌즈를 수용액 중에서 양으로 하전된 아제티디늄 기를 갖는 수용성, 고분지형, 열가교성 친수성 중합체 물질의 존재하에 40℃ 내지 140℃의 온도에서 하나의 아제티디늄 기와 실리콘 히드로겔 콘택트 렌즈 표면 상의 및/또는 그 근처의 반응성 관능기 중 어느 하나 사이에 각각 형성된 공유 연결을 통해 실리콘 히드로겔 콘택트 렌즈의 표면 상에 열가교성 친수성 중합체 물질을 공유 접합시키는 충분한 시간 동안 가열하여, 실리콘 히드로겔 콘택트 렌즈 상에 가교된 친수성 코팅을 형성하는 것을 포함한다. 상기 방법은 유리하게도 오토클레이빙 동안에 밀봉된 렌즈 패키지 내에서 직접 실시될 수 있다.

고흡수성 수지 제조용 표면 개질 무기 나노 입자 및 고흡수성 수지 제조용 중화액

본 발명은 (메트)아크릴레이트계 작용기, 알릴기, 비닐기, 에폭시기, 히드록시기, 이소시아네이트기 및 아민기로 이루어진 군에서 선택된 적어도 1종 이상의 작용기를 포함한 반응성 작용기로 표면이 개질된 고흡수성 수지 제조용 표면 개질 무기 나노 입자 및 이를 포함한 고흡수성 수지 제조용 중화액에 관한 것이다.

입자상 흡수제 및 그의 제조 방법

[문제] 본 발명이 해결하고자 하는 과제는 가압하 흡수 배율이 높고, 또한, 흡습 블로킹성이 저감된 입자상 흡수제 및 그의 제조 방법을 제공하는 데 있다. [해결수단] 인산류의 음이온과 2가 또는 3가의 금속 양이온을 포함하는 0.15㎛ 미만의 결정자 직경을 갖는 수불용성 금속 인산염을 함유하고, 2.06kpa 가압하 흡수 배율이 20g/g 이상인 입자상 흡수제.

A continuous process for the production of a superabsorbent polymer

본 발명은 (a) 용존 산소를 함유하는 액상의 산성 단량체 수성 혼합물을 제공하고 (여기에서 단량체는 중합 후 초흡수성 중합체를 제공하도록 선택됨), (b) 상기 단량체 수성 혼합물을 반응기에 연속적으로 공급하고, (c) 탄산염 또는 탄산수소염의 공급원을 반응기 내로 들어가기 전에 상기 단량체 수성 혼합물 내에 도입하여, 이산화 탄소 및 상기 용존 산소의 적어도 일부를 포함하는, 액체 상에 분산되어 있는 기체 상을 형성하며, (d) 상기 기체/액체 혼합물에, 반응기 내로 들어가기 직전 또는 직후에, 적어도 부분적인 상 분리를 실시하고 상기 분리된 기체 상을 적어도 부분적으로 제거하고, (e) 반응기 내의 상기 액체 상에 자유-라디칼 중합을 실시하여 초흡수성 중합체를 수득하고, (f) 상기 반응기로부터 초흡수성 중합체를 연속적으로 회수하는 것을 포함하는, 초흡수성 중합체의 연속적 제조 방법에 관한 것이다. (A) providing an aqueous acidic aqueous monomer mixture containing dissolved oxygen, wherein the monomers are selected to provide a superabsorbent polymer after polymerization, (b) continuously feeding the aqueous monomer mixture to the reactor (c) introducing a source of carbonate or bicarbonate into the monomer aqueous mixture prior to entering the reactor to form a gaseous phase dispersed in the liquid phase comprising at least a portion of the carbon dioxide and the dissolved oxygen, ) Performing at least partial phase separation and at least partially removing the separated gaseous phase immediately before or after entering the reactor into the gas / liquid mixture, (e) subjecting the liquid in the reactor to free-radical polymerization To obtain a superabsorbent polymer, and (f) continuously recovering the superabsorbent polymer from the reactor Relates to a continuous method of manufacturing a superabsorbent polymer that also.

Water-soluble resin composition

Water-absorbing agent composition and absorbent article using the same

混合床离子交换可形成水凝胶的聚合物组合物以及含相对高浓度这些组合物的吸收性部件

本发明公开了含有至少一种阳离子离子交换可形成水凝胶的聚合物和至少一种阴离子离子交换可形成水凝胶的聚合物的组合物,其中相对于为其中和形式的可形成水凝胶的聚合物的可比的混合物,该组合物具有改进的吸收特性。本发明还公开了相对于现有的混合床组合物,承压下吸收性能值PUP提高的混合床离子交换组合物,该组合物消除了这些现有体系会遇到的有害的凝胶阻塞。本发明还公开了用于持留体液如尿液的吸收部件,该部件具有至少一个含有混合床离子交换可形成水凝胶的吸收性聚合物组合物的区域,该吸收性聚合物组合物的浓度为约60重量%至100重量%。

具有富水表面的硅水凝胶透镜

本发明涉及一种具有如下层状结构构造的水合硅水凝胶接触透镜：被一层富水(例如水含量大于80%)层完全覆盖的低水含量硅水凝胶芯(或本体材料)、完全或基本不含硅氧烷的水凝胶。本发明水合硅水凝胶接触透镜具有高氧渗透率以保持角膜健康和柔软、富水的润滑表面以使佩戴舒适。

Water-absorbing agent and method for producing the same

The present invention provides a water-absorbing agent that includes water-absorbent resin particles as essential components and is suitable for a sanitary material. A water-absorbing agent of the present invention includes water-absorbent resin particles obtained by polymerizing an unsaturated monomer having an acid group. The water-absorbing agent has centrifuge retention capacity (CRC) of 5 to 20g/g and includes: a compound with a structure unit derived from polyalkyleneglycol other than the unsaturated monomer; and a multivalent metal salt, and accordingly the water-absorbing agent has high saline flow conductivity (SFC) in a range of the above centrifuge retention capacity (CRC).

超吸收颗粒团聚的方法

本发明涉及一种使超吸收颗粒团聚的方法，其中将粒径为250μm以下的聚合物颗粒分散于疏水性有机溶剂中；将所述分散的聚合物颗粒与单体水溶液混合，所述单体水溶液的施用于分散的聚合物颗粒的水的总量为至少100重量％，相对于分散的聚合物颗粒计；并使单体溶液聚合。

吸水性材料、用于表面交联的吸水性树脂的生产方法以及用于吸水性材料的评价方法

提供均匀的表面交联的吸水性树脂及其生产方法。该吸水性材料由表面交联的吸水性树脂形成，该表面交联的吸水性树脂产生自粒状不规则粉碎成形表面交联具有丙烯酸或其金属盐作为主要组分的吸水性树脂部分中和或全部中和的产物，其吸水性材料显示出在吸水性材料表面上的金属原子浓度在抛光0秒时为0-10％，在抛光10秒值时为2-35％，通过将该吸水性材料在500V的电压下进行Ar离子放电抛光来测定。此处要使用的表面交联的吸水性树脂可以通过表面交联具有特定粒径的吸水性树脂和具有水浓度在一定范围的表面交联剂来生产。

制备超吸收性聚合物的方法

本发明涉及制备超吸收性聚合物的方法。根据本发明的制备超吸收性聚合物的方法包括以下步骤：对包含水溶性烯键式不饱和单体和聚合引发剂的单体组合物进行热聚合或光聚合以形成水凝胶聚合物；干燥所述水凝胶聚合物；粉碎经干燥的聚合物；使经粉碎的聚合物中粒径为180μm或更小的细粉与粒径为300μm或更大的聚合物混合；以及向混合物中添加蒸汽以进行再集合。根据本发明，可获得具有高细粉聚集强度的超吸收性聚合物。

二酸化炭素分離膜形成用組成物、二酸化炭素分離膜及びその製造方法、並びに二酸化炭素分離装置

【課題】ガス分離特性に優れた二酸化炭素分離膜を高い生産性で製造することができる二酸化炭素分離膜形成用組成物、優れたガス分離特性を有する二酸化炭素分離膜及びその製造方法、並びに二酸化炭素分離装置を提供する。 【解決手段】吸水性ポリマーと、二酸化炭素キャリアと、多糖類とを含む二酸化炭素分離膜形成用組成物。好ましくは、前記組成物の入った容器の周囲を０℃氷水で冷却しながらＪＩＳ Ｚ８８０３に準じてＢ型粘度計を用いて測定したときの前記組成物の粘度が、冷却開始後、７００秒以内に１０００ｃｐ以上になる二酸化炭素分離膜形成用組成物。好ましくは、ロールトゥロールで帯状の支持体１２を搬送しながら上記組成物を塗布して塗布膜を形成し、塗布膜を冷却してゲル膜とした後、ゲル膜を乾燥させて乾燥膜とし、乾燥膜を架橋して二酸化炭素分離膜５２を得る。 【選択図】図１

Rubber mixture

FIELD: rubber products.SUBSTANCE: invention relates to the field of rubber products, namely to a rubber compound for the production of water-oil-swellable rubber products based on rubbers, including water-oil-swellable packers. The rubber mixture as a base contains ethylene-propylene-diene, preferably norbornene, rubber (EPDM), hydrogenated nitrile butadiene rubber (GHNBR), spatially crosslinked polyvinylpyrrolidone (c-PVP), acrylic acid esters cross-linked by polysaccharides or their derivatives (CPAAE) and functional and technological additives.EFFECT: development of a rubber compound, from which products are made, characterized by an effective combination of swelling properties, namely, a slower volume change in oily medium with a simultaneous increased swelling in an aqueous medium.2 cl, 3 dwg, 2 tbl, 1 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 751 316 C1 (51) МПК C08L 9/02 (2006.01) C08L 101/14 (2006.01) E21B 33/12 (2006.01) C08L 23/16 (2006.01) C08L 33/08 (2006.01) C08L 39/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА C08K 5/14 (2006.01) ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ C08K 3/011 (2018.01) (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C08L 9/02 (2021.02); C08L 101/14 (2021.02); E21B 33/12 (2021.02); C08L 23/16 (2021.02); C08L 33/08 (2021.02); C08L 39/06 (2021.02); C08K 5/14 (2021.02); C08K 3/011 (2021.02) (21)(22) Заявка: 2020143868, 29.12.2020 29.12.2020 Дата регистрации: 13.07.2021 (45) Опубликовано: 13.07.2021 Бюл. № 20 2 7 5 1 3 1 6 R U (54) РЕЗИНОВАЯ СМЕСЬ (57) Реферат: Изобретение относится к области резинотехнических изделий, а именно к резиновой смеси для производства водонефтенабухающих резинотехнических изделий на основе каучуков, в том числе водонефтенабухающих пакеров. Резиновая смесь в качестве основы содержит этилен-пропилен-диеновый, предпочтительно норборненовый, каучук (СКЭПТ), гидрированный бутадиен-нитрильный каучук (ГБНКС), пространственно-сшитый поливинилпирролидон (с-ПВП), сшитые Стр.: 1 (56) Список документов, цитированных в отчете о поиске: RU ...

吸收组合物

公开了一种包括一种酸性材料和一种碱性材料的吸收组合物，该吸收组合物具有所需的吸收性能。具体地说，本发明涉及含一种酸性水溶胀性、水不溶性聚合物或一种碱性水溶胀性、水不溶性聚合物，以及一种碱性或酸性第二材料的吸收组合物。该吸收组合物具有缓慢吸收大量液体的能力，特别是在外压下。该吸收组合物用于一次性吸收制品，例如用于吸收人体液的一次性吸收制品。

磺酸盐组合物及其用于颜色稳定的用途

磺酸盐组合物包括式(I)的化合物，其中n是1或2，R 1 是H或C 1 ‑C 6 烷基，R 2 是COOM、SO 3 M或CH(OH)SO 2 ‑OM，各M是当量的多价金属，优选镁、钙、铝、锌及它们的组合。其中n为1的化合物与其中n为2的化合物的摩尔比低于0.1。所述磺酸盐组合物可用于非生物有机物质的颜色稳定，所述有机物质例如来自漆、油漆、粉末涂料和聚合物，特别是吸水性聚合物。

Medical devices having homogeneous charge density and methods for making same

본 발명은 향상된 라이소자임 흡수성, 낮은 접촉각 및 감소된 수용성 중합체성 암모늄 염 흡수성을 나타내는 이온성 실리콘 하이드로겔 중합체에 관한 것이다. The present invention relates to an ionic silicone hydrogel polymer exhibiting improved lysozyme absorption, low contact angle and reduced water-soluble polymeric ammonium salt absorption.

Water absorbent material, method for production of surface cross-linked water absorbent resin, and method for evaluation of water absorbent material

균질하게 표면 가교된 흡수성 수지 및 그의 제조 방법이 제공된다. 상기 흡수성 물질은 아크릴산 또는 그의 금속염을 주성분으로서 함유하는 흡수성 수지의 부분 중화 또는 완전 중화 생성물의 과립상 부정형 분쇄상의 표면 가교로부터 얻어진 표면 가교된 흡수성 수지로 형성되며, 상기 흡수성 물질은 500 V의 전압하에서 상기 흡수성 물질에 Ar 이온 방전 연마를 처리함으로써 측정되는 경우 연마 0 초 내에 0 ~ 10% 및 연마 10 초에 2~35%의 범위로 상기 흡수성 물질 표면상의 금속 원자 농도를 나타낸다. 본 발명에서 사용되는 표면 가교된 흡수성 수지는 특정 입자 직경을 갖는 흡수성 수지를 특정 범위의 수분 농도를 갖는 표면 가교제로 표면 가교함으로써 제조될 수 있다. Provided are homogeneous surface crosslinked absorbent resins and methods for their preparation. The absorbent material is formed of a surface-crosslinked absorbent resin obtained from the surface crosslinking of the granular amorphous pulverized phase of the partially neutralized or completely neutralized product of the absorbent resin containing acrylic acid or a metal salt thereof as the main component, the absorbent material under a voltage of 500 V. When measured by treating Ar absorb discharge polishing to the absorbent material, the concentration of metal atoms on the surface of the absorbent material is indicated in the range of 0 to 10% within 0 seconds of polishing and 2 to 35% at 10 seconds of polishing. The surface crosslinked absorbent resin used in the present invention can be prepared by surface crosslinking an absorbent resin having a specific particle diameter with a surface crosslinking agent having a specific range of moisture concentration.

超吸收性聚合物的制备方法

本公开内容涉及能够通过稍后添加简单的添加剂来改善超吸收性聚合物的吸收性能的超吸收性聚合物的制备方法。所述超吸收性聚合物的制备方法包括以下步骤：通过在内交联剂的存在下使具有至少部分被中和的酸性基团的水溶性烯键式不饱和单体交联和聚合而形成水凝胶聚合物；将水凝胶聚合物干燥、粉碎和分级以形成基础树脂粉末；通过在表面交联剂的存在下使基础树脂粉末的表面进一步交联而形成表面交联层，在25℃至80℃的温度下在经表面交联的基础树脂粉末上添加一价至三价金属阳离子，以及将所得添加有金属阳离子的产物在40℃至60℃的温度下保持和老化10分钟至30分钟。

Composition, method for producing same, and use thereof

Spray drying of polymer-containing dispersions, water-in-oil emulsions and microemulsions and dry polymer products formed thereby

Processes for spray drying water-soluble and water-swellable vinyl-addition polymer-containing dispersions, emulsions and microemulsions to obtain substantially dry water-soluble or water-swellable polymer particles, compositions of substantially dry water-soluble or water-swellable polymer particles, methods of agglomerating spray-dried polymer particles, and methods of using spray-dried polymer particles and agglomerates in water-treating, mining, paper, food processing, soil conditioning, solution thickening, biotechnological, and oil recovery applications are disclosed.

Preparing method of soluble graphene solution

본 발명은 가용성 그라핀 용액의 제조방법에 관한 것으로, 상세하게는 산화 그라핀과 비공유 상호 작용하는 특정의 수용성 고분자 용액에 산화 그라핀을 분산시킨 후, 이를 환원시킴으로써, 화학적으로 안정하고, 보관이 용이하여, 다분야에 응용 가능한 가용성 그라핀 용액을 제공하는 기술에 관한 것이다. The present invention relates to a method for preparing a soluble graphene solution, and more particularly, by dispersing graphene oxide in a specific water-soluble polymer solution which has noncovalent interaction with graphene oxide, and then reducing it, thereby making it chemically stable and easy to store. The present invention relates to a technology for providing a soluble graphene solution that can be easily applied to multi fields.

Preparation method for super absorbent polymer

본 발명은 고흡수성 수지의 제조 방법에 관한 것이다. 본 발명에 따른 고흡수성 수지의 제조 방법은 수용성 에틸렌계 불포화 단량체, 열중합 개시제 및 광중합 개시제를 포함하는 모노머 조성물에 대하여 30 내지 55℃의 온도에서 광중합을 진행하는 단계; 55 내지 120℃의 온도에서 열중합 및 광중합을 진행하여 함수겔상 중합체를 형성하는 단계; 및 상기 함수겔상 중합체를 건조하는 단계를 포함한다. 본 발명에 따르면, 저온에서의 광중합 후 고온에서의 열중합 또는 광중합하는 2단계의 중합 단계를 포함하여, 향상된 물성을 갖는 고흡수성 수지를 수득할 수 있다. The present invention relates to a method for producing a superabsorbent resin. The method for producing a superabsorbent resin according to the present invention comprises: polymerizing a monomer composition comprising a water-soluble ethylenically unsaturated monomer, a thermal polymerization initiator and a photopolymerization initiator at a temperature of 30 to 55 ° C; Conducting thermal polymerization and photopolymerization at a temperature of 55 to 120 캜 to form a hydrogel polymer; And drying the hydrogel polymer. According to the present invention, it is possible to obtain a superabsorbent resin having improved physical properties including a two-step polymerization step in which thermal polymerization at a high temperature or photopolymerization at a low temperature is carried out at a low temperature.

Crosslinkers, compositions and compounds

Способ изготовления вяжущего состава

Изобретение относится к способу набухания способных к набуханию полимерных микросфер. Способ набухания способных к набуханию полимерных микросфер включает изготовление вяжущего состава или вяжущего продукта, содержащего состав, содержащий (i) приведение водной суспензии, содержащей ненабухшие, способные к набуханию полимерные микросферы, в контакт с паром, непосредственно до и/или во время изготовления вяжущего состава; (ii) необязательно предварительное смачивание набухших полимерных микросфер; и (iii) включение набухших полимерных микросфер в вяжущий состав, где набухшие полимерные микросферы имеют средний диаметр, который составляет от 40 до 216 мкм, и водная суспензия необязательно дополнительно содержит добавку для вяжущего состава, и ненабухшие, способные к набуханию полимерные микросферы имеют средний диаметр, который составляет 100 мкм или меньше. Технический результат – создание в вяжущих составах пустот с контролированными размерами, повышение прочности. 13 з.п. ф-лы, 5 ил., 4 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК C04B 16/08 C04B 28/02 C04B 38/08 C04B 40/00 (11) (13) 2 665 325 C2 (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C04B 16/08 (2006.01); C04B 28/02 (2006.01); C04B 38/08 (2006.01); C04B 40/00 (2006.01) (21)(22) Заявка: 2014146228, 19.04.2013 (24) Дата начала отсчета срока действия патента: Дата регистрации: 29.08.2018 19.04.2012 US 61/635562; 30.08.2012 US 61/695134 (43) Дата публикации заявки: 10.06.2016 Бюл. № 16 (56) Список документов, цитированных в отчете о поиске: US 2007/0098973 A1, 03.05.2007. RU (45) Опубликовано: 29.08.2018 Бюл. № 25 2182566 C1, 20.05.2002. US 2007/0137528 A1, 21.06.2007. US 2005/0243408 A1, 29.12.2005. WO 2010/070987 A1, 24.06.2010. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 19.11.2014 C 2 C 2 (73) Патентообладатель(и): КОНСТРАКШН РИСЁРЧ ЭНД ТЕКНОЛОДЖИ ГМБХ (DE) (86) Заявка PCT: EP 2013/058155 (19.04.2013) ...

Method for preparing super absorbent polymer

本公开内容涉及一种用于制备超吸收性聚合物的方法。根据本发明的用于制备超吸收性聚合物的方法包括下述步骤：在30℃至55℃的温度下进行包含水溶性烯键式不饱和单体、热聚合引发剂和光聚合引发剂的单体组合物的光聚合；在55℃至120℃的温度下进行热聚合和光聚合以形成水凝胶聚合物；以及将该水凝胶聚合物干燥。根据本发明，通过包括两阶段聚合步骤可获得具有改良物理性质的超吸收性聚合物，所述两阶段聚合步骤包括在低温下进行光聚合以及之后在高温下进行热聚合或光聚合。

Water soluble polymer blend compositions

A water soluble polymer blend composition includes at least one water soluble polymer and at least one immiscible polymer. The water soluble polymer and the immiscible polymer can be melt processed at a temperature above their respective melt processing temperatures and quenched to form the water soluble polymer blend composition in a non-equilibrium state, such that it can exhibit a non-equilibrium morphology. Non-equilibrium morphologies can include, e.g., a microfiber morphology or a co-continuous morphology.

Novel borozirconate systems in completion systems

A cross-linking system for hydratable polymers for using is formation fracturing applications is disclosed along with methods for using same, where the cross-linking system includes a reaction product of a transition metal alkoxide or alkanolate and a borate or borate generating reagent.

Polymeric gel system and methods for making and using same in hydrocarbon recovery

Coacervate gels having excellent shear viscosities and other properties are made with anionic or cationic polymers, a smaller amount of a surfactant having a charge opposite that of the polymer, and a hydrophobic alcohol and an effective amount of a phosphorus-containing compound sufficient to increase the viscosity of coacervate gels up to 3 times as compared to the gels in the absence of the phosphorus-containing compound. The Zeta Potential of the gel is maintained at an absolute value of at least 20. Optional gel promoting additives include betaines and amine oxides. A preferred gel comprises poly diallyl dimethyl ammonium chloride, a lesser amount of sodium lauryl sulfonate, and lauryl alcohol. The gels are particularly useful in well drilling fluids and well fracturing fluids.

Borozirconate systems in completion systems

A cross-linking system for hydratable polymers for using is formation fracturing applications is disclosed along with methods for using same, where the cross-linking system includes a reaction product of a transition metal alkoxide or alkanolate and a borate or borate generating reagent.

Method for manufacturing cement

A method of expanding expandable polymeric microspheres including contacting an aqueous slurry including unexpanded, expandable polymeric microspheres with heat in-situ during manufacture of cement. A method of manufacturing cement includes: (i) contacting an aqueous slurry of unexpanded, expandable polymeric microspheres with heat proximate to and/or during said manufacturing of cement to create expanded polymeric microspheres; (ii) optionally pre-wetting the expanded polymeric microspheres; and (iii) mixing the expanded polymeric microspheres with cement.

Method for manufacturing cement containing expanded polymeric microspheres

A method of expanding expandable polymeric microspheres including contacting an aqueous slurry including unexpanded, expandable polymeric microspheres with heat in-situ during manufacture of a construction material for use in a cementitious composition. This construction material may include aggregate material and/or other ingredients which may be found in cementitious compositions, such as fly ash, silica fume, slag, metakaolin, fibers, etc.. A method of manufacturing a construction material includes: (i) contacting an aqueous slurry of unexpanded, expandable polymeric microspheres with heat proximate to and/or during said manufacturing of the construction material to create expanded polymeric microspheres; (ii) optionally pre-wetting the expanded polymeric microspheres; and (iii) mixing the expanded polymeric microspheres with the construction material.

Admixture and method for freeze-thaw damage resistance and scaling damage resistance of cementitious compositions

A freeze-thaw damage resistance and scaling damage resistance admixture for a cementitious composition including an aqueous slurry comprising a water insoluble superabsorbent polymer and expandable polymeric microspheres. A method for preparing a freeze-thaw damage resistant and scaling damage resistant cementitious composition including forming a mixture of a hydraulic cement and an admixture including an aqueous slurry of a water insoluble superabsorbent polymer and expanded polymeric microspheres.

Method for manufacturing a cementitious composition

A method of expanding expandable polymeric microspheres including contacting an aqueous slurry including unexpanded, expandable polymeric microspheres with steam in-situ during manufacture of acementitious composition or article, wherein the aqueous slurry optionally further includes an admixture therefor. A method of manufacturing a cementitious composition or article includes: (i) contacting an aqueous slurry of unexpanded, expandable polymeric microspheres with steam proximate to and/or during said manufacturing of the cementitious composition to create expanded polymeric microspheres; (ii) pre-wetting the expanded polymeric microspheres; and (iii) mixing the pre-wetted, expanded polymeric microspheres with cement and water to form the cementitious composition, wherein the aqueous slurry optionally further comprises an admixture therefor.

Method for manufacturing a cementitious composition

A method of expanding expandable polymeric microspheres including contacting an aqueous slurry including unexpanded, expandable polymeric microspheres with steam in-situ during manufacture of a cementitious composition or article, wherein the aqueous slurry optionally further includes an admixture therefor. A method of manufacturing a cementitious composition or article includes: (i) contacting an aqueous slurry of unexpanded, expandable polymeric microspheres with steam proximate to and/or during said manufacturing of the cementitious composition to create expanded polymeric microspheres; (ii) pre-wetting the expanded polymeric microspheres; and (iii) mixing the pre-wetted, expanded polymeric microspheres with cement and water to form the cementitious composition, wherein the aqueous slurry optionally further comprises an admixture therefor.

Admixture and method for freeze-thaw damage resistance and scaling damage resistance of cementitious compositions

A freeze-thaw damage resistance and scaling damage resistance admixture for a cementitious composition including an aqueous slurry comprising a water insoluble superabsorbent polymer and expandable polymeric microspheres. A method for preparing a freeze-thaw damage resistant and scaling damage resistant cementitious composition including forming a mixture of a hydraulic cement and an admixture including an aqueous slurry of a water insoluble superabsorbent polymer and expanded polymeric microspheres.

The manufacture method of cement

使可膨胀性聚合物微球膨胀的方法，包括在水泥的制造期间，将包含未膨胀的可膨胀性聚合物微球的含水浆料与热原位接触。制造水泥的方法包括：(i)在接近所述水泥的制造期间和/或在水泥的制造期间，将未膨胀的可膨胀性聚合物微球的含水浆料与热接触，以产生经膨胀的聚合物微球；(ii)任选地预润湿经膨胀的聚合物微球；以及(iii)将膨胀的聚合物微球与水泥混合。