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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 12698. Отображено 100.
15-03-2012 дата публикации

Azeotrope-like compositions comprising 1-chloro-3,3,3-trifluoropropene

Номер: US20120064014A1
Автор: David J. Williams, Gary Knopeck, Hang T. Pham, Kane Cook, Leslie Bement, Rajat Basu, Rajiv R. Singh, Ryan Hulse
Принадлежит: Honeywell International Inc

An azeotrope-like mixture consisting essentially of chlorotrifluoropropene and at least one component selected from the group consisting of a C 1 -C 3 alcohol, a C 5 -C 6 hydrocarbon, a halogenated hydrocarbon, methylal, methyl acetone, water, nitromethane, and combinations thereof.

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Номер записи: 1
12-04-2012 дата публикации

Pre-expanded polypropylene resin beads and process for producing same

Номер: US20120088854A1
Автор: Taro Kiguchi
Принадлежит: Kaneka Corp

The present invention provides pre-expanded polypropylene resin beads comprising (A) a glycerin monoester of a C 6 to C 24 fatty acid and/or a polyglycerin monoester of a C 6 to C 24 fatty acid and (B) a glycerin diester of a C 6 to C 24 fatty acid(s) and/or a polyglycerin diester of a C 6 to C 24 fatty acid(s), in such a manner that a weight ratio [=(A)/(B)] between (A) and (B) in the polypropylene resin particles is 1.3 or more but 10 or less, and a total content [=(A)+(B)] is 0.3 parts by weight or more but 5 parts by weight or less with respect to 100 parts by weight of the polypropylene resin. The resin particles can be excellently used in in-mold foaming, without requiring washing with a chemical like nitric acid or methaphosphate soda, and can provide a polypropylene resin in-mold foamed product with good antistatic properties.

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Номер записи: 2
17-05-2012 дата публикации

Azeotrope-like compositions comprising 1-chloro-3,3,3-trifluoropropene

Номер: US20120122996A1
Автор: David J. Williams, Gary Knopeck, Hang T. Pham, Kane Cook, Leslie Bement, Rajat Basu, Rajiv R. Singh, Ryan Hulse
Принадлежит: Honeywell International Inc

An azeotrope-like mixture consisting essentially of chlorotrifluoropropene and at least one component selected from the group consisting of a C 1 -C 3 alcohol, a C 5 -C 6 hydrocarbon, a halogenated hydrocarbon, methylal, methyl acetone, water, nitromethane, and combinations thereof.

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Номер записи: 3
31-05-2012 дата публикации

Expandable vinyl aromatic polymers and process for the preparation thereof

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

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

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Номер записи: 4
15-11-2012 дата публикации

Preparation method of clay/polymer composite using supercritical fluid-organic solvent system

Номер: US20120289618A1
Автор: Purba Purnama, Sang-Heon Kim, Soo Hyun Kim, Youngmee JUNG
Принадлежит: Korea Advanced Institute of Science and Technology KAIST

The present invention relates to a method for preparing a clay/polymer composite having a predetermined form such as powder or porous foam with an enhanced thermal and mechanical stability using a simple, economical and eco-friendly supercritical fluid-organic solvent system, and more particularly, to a method for preparing a clay/biodegradable polymer stereoisomeric nanocomposite and a clay/polymer composite prepared by the method thereof. The method of preparing a clay/polymer composite according to the present invention may include (a) introducing a clay, a biodegradable single-phase D-type/L-type stereoisomeric polymer and an organic solvent into a reactor, (b) introducing a supercritical fluid into the reactor to form a stereoisomeric composite, and forming a clay/polymer composite dispersed with the clay on the stereoisomeric composite, and (c) collecting the clay/polymer composite, and the clay/polymer composite of the present invention is a clay/polymer composite prepared by the preparation method.

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Номер записи: 5
14-03-2013 дата публикации

Laser-induced plastic foaming

Номер: US20130065979A1
Автор: David Kümmet, Hendrik Wermter, Rainer Schnee, Rüdiger WISSEMBORSKI
Принадлежит: Chemische Fabrik Budenhiem KG

A matrix material composed of polymer, preferably of thermoplastic polymer, or coating material. The matrix material includes 0.01 to 50% by weight of an additive for foaming of the matrix material which can be triggered by irradiation with laser light or IR light. The additive includes at least the following constituents: a) at least one absorber material which, embedded or dissolved in the matrix material, absorbs laser light or IR light and brings about local heating in the matrix material at the site of irradiation with laser light or IR light, and b) at least one blowing agent which, when heated due to the irradiation with laser light or IR light to temperatures above 50° C., forms a gas which foams the matrix material by decomposition, chemical conversion or reaction.

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Номер записи: 6
11-04-2013 дата публикации

Compositions for compounding, extrusion and melt processing of foamable and cellular fluoropolymers

Номер: US20130090398A1
Автор: Bradley L. Kent, Charles Glew, Jeffrey A. Hrivnak, Kenneth Boyle
Принадлежит: Cable Components Group LLC

The present invention relates generally to the use of talc as a chemical foaming agent in perfluoropolymers to form foamable and foamed compositions. For example, in one aspect, a foamable composition is disclosed, which comprises (i) one or more base perfluoropolymers comprising at least 50 percent by weight of the composition, and (ii) talc blended with the one or more base perfluoropolymers, where the talc comprises 3 percent to about 15 percent by weight of the composition. Each of the perfluoropolymers is selected from the group consisting of tetrafluoroethylene/perfluoromethylvinyl ether copolymer (MFA), hexafluoropropylene/tetrafluoroethylene copolymer (FEP) and perfluoroalkoxy (PFA) and any blend thereof, where hydrogen-containing fluoropolymers are absent from the composition. The one or more base perfluoropolymers are melt-processable at one or more elevated processing temperatures of at least about 600° F. at which the talc functions as a chemical foaming agent for extrusion or mold processing of the composition into a foamed article having uniform cell structures.

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Номер записи: 7
09-05-2013 дата публикации

Composition for porous plastics for intake housings

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

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

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Номер записи: 8
23-05-2013 дата публикации

Heat transfer compositions

Номер: US20130126778A1
Автор: Robert E. Low
Принадлежит: MEXICHEM AMANCO HOLDING SA DE CV

The invention provides a heat transfer composition comprising (i) a first component selected from trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), cis-1,3,3,3-tetrafluoropropene (R-1234ze(Z)) and mixtures thereof; (ii) carbon dioxide (R-744); and (iii) a third component selected from 2,3,3,3-tetrafluoropropene (R-1234yf), 3,3,3-trifluoropropene (R-1243zf), and mixtures thereof.

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Номер записи: 9
08-08-2013 дата публикации

Polymer Composite Foams

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

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

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Номер записи: 10
14-11-2013 дата публикации

Method of forming polymeric foam and related foam articles

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

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

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Номер записи: 11
05-12-2013 дата публикации

Resin foam and process for producing the same

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

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

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Номер записи: 12
09-01-2014 дата публикации

Reaction mixture in the form of an emulsion and process for production of polyurethane foams from such a reaction mixture

Номер: US20140011897A1
Автор: Elena Khazova, Lorenz Kramer, Reinhard Strey, Stefan Lindner, Thomas Sottmann, Verena Dahl, Wolfgang Friederichs
Принадлежит: Bayer Intellectual Property GmbH

The present invention relates to a reaction mixture in emulsion form, suitable for conversion into polyurethanes, comprising a first phase and a second phase in the emulsion and further comprising the following components: A) polyols; B) blowing agent; C) surfactants; and D) isocyanates, wherein the isocyanate-reactive compounds A) are present in the first phase of the emulsion and the blowing agent B) is present in the second phase. The blowing agent B) is present in the near-critical or supercritical state and the isocyanate D) is present in the second phase in a proportion of ≧10% by weight of the total amount of isocyanate D) in the composition. The invention further relates to a method of producing polyurethane foams by providing such a reaction mixture, wherein a polymerization takes place at the freshly formed interface between the polyol phase and the blowing agent phase, to the use of such a reaction mixture for producing polyurethane foams and also to the polyurethane foams obtained.

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Номер записи: 13
09-01-2014 дата публикации

Foam waterproofing material with a micro cell structure

Номер: US20140011902A1
Автор: Hiroki Fujii, Itsuhiro Hatanaka, Kazumichi Kato
Принадлежит: Nitto Denko Corp

To be provided is a foam waterproofing material superior in waterproofness and flexible enough to be compatible with further minute clearance. The foam waterproofing material according to the present invention is a waterproofing material including a foam having a thickness of 0.1 to 1.0 mm, characterized in that the foam has a micro cell structure with an average cell diameter of 10 to 60 μm and an apparent density of 0.01 to 0.060 g/cm 3 . In the foam waterproofing material, the repulsive load when compressed to 0.1 mm (0.1 mm-compressive repulsion force) of the foam is preferably 0.01 to 0.1 MPa. The foam preferably has a closed-cell structure or a semi-open- and semi-closed-cell structure. In addition, the foam may have a pressure-sensitive adhesive layer on one or both faces thereof. The pressure-sensitive adhesive layer is preferably formed on the foam via a film layer.

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Номер записи: 14
16-01-2014 дата публикации

Foamable article

Номер: US20140017492A1
Автор: Alan R. Seville, Jeffrey L. Hamer, Kenneth F. Teeters
Принадлежит: 3M Innovative Properties Co

A foamable article is disclosed. The article includes a substrate and an outer layer covering at least a portion of the substrate and including an unactivated expandable sphere foaming agent and an unactivated chemical foaming agent. The unactivated foaming agents may be activated to increase the volume of the outer layer.

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Номер записи: 15
27-03-2014 дата публикации

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

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

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

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Номер записи: 16
01-01-2015 дата публикации

Polymeric material for an insulated container

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

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

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Номер записи: 17
05-01-2017 дата публикации

COMPOSITE SHEET AND MANUFACTURING METHOD FOR A FOAMED DECORATIVE SHEET FREE OF PVC AND PLASTICIZERS

Номер: US20170001411A1
Автор: ETIN Aleksey
Принадлежит:

A composite sheet and a manufacturing process for producing a decorative sheet using the composite sheet are provided. The composite sheet has a base layer and a foamable layer bonded to the base layer. The foamable layer includes 100 parts by weight of a polyolefin material having an elastic modulus of <0.1 GPa, 0.1-10 parts by weight of a foaming agent, and 0-200 parts by weight of additives. The foamable layer has a thickness of 0.05 to 0.3 mm. 1. A composite sheet comprising:a base layer having an elastic modulus of >1 GPa; and 100 parts by weight of a polyolefin material having an elastic modulus of <0.1 GPa;', '0.1-10 parts by weight of a foaming agent;', '0-200 parts by weight of additives; and,, 'a foamable layer bonded to the base layer and includingsaid foamable layer having a thickness of 0.05 to 0.3 mm.2. The composite sheet of claim 1 , wherein said polyolefin material is selected from the group consisting of thermoplastic elastomer polyolefins claim 1 , ethylene vinyl acetate copolymers claim 1 , and atactic polypropylene polymers claim 1 , or mixtures thereof.3. The composite sheet of claim 1 , wherein said foaming agent is selected from the group consisting of azodicarbonamide claim 1 , an azodicarbonamide metal salt claim 1 , hydrazodicarbonamide claim 1 , sodium bicarbonate claim 1 , trihydrazino-sym-triazine claim 1 , pp′-oxybis-benzenesulfonylhydrazide claim 1 , dinitroso-pentamethylene-tetramine claim 1 ,azobisisobutyl-odinitrile, p-toluenesulfonylhydrazide, and bisbenzenesulfonylhydrazide.4. The composite sheet of claim 1 , wherein said additives are selected from the group consisting of catalysts claim 1 , pigments claim 1 , fillers claim 1 , matting agents claim 1 , microbial agents claim 1 , UV stabilizers claim 1 , fire retardants and release compounds.5. The composite sheet of claim 4 , wherein:said additives include a catalyst; and,said catalyst is selected from the group consisting of zinc oxide, barium ricinoleate, tin methoxy maleate, ...

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Номер записи: 18
07-01-2016 дата публикации

POLYMERIC SHEETS, METHODS FOR MAKING AND USING THE SAME, AND ARTICLES COMPRISING POLYMERIC SHEETS

Номер: US20160002429A1
Автор: Davis Michael J., de Nooijer Hendrik Cornelis Jacobus, Dhawan Sandeep, Donea Constantin, HE YUANQING, Laurin Michael M., MA Shuailei, Maas Christianus Johannes Jacobus, Tadros Safwat E., Zhou Jian
Принадлежит:

In one embodiment, a polymeric sheet, comprising: a foamed layer comprising a polymeric material, wherein the polymeric material has a Tg of greater than or equal to 100° C.; and wherein the sheet has a weight reduction of 10% to 60%, as compared to a solid sheet of the same geometry and size formed from the same polymeric material. The sheet, at the thickness of 1.0 mm, has a smoke density of less than or equal to 200 particles after four minutes of burning according to ASTM E662-06. The sheet is thermoformable. 1. A polymeric sheet , comprising:a foamed layer comprising a polymeric material, wherein the polymeric material has a Tg of greater than or equal to 100° C.; andwherein the sheet has a weight reduction of 10% to 60%, as compared to a solid sheet of the same geometry and size formed from the same polymeric material; and 1) has a two minute integrated heat release rate of less than or equal to 65 kilowatt-minutes per square meter and a peak heat release rate of less than 65 kilowatts per square meter according to Part IV, OSU Heat Release of FAR/JAR 25.853, Amendment 25-116;', {'sup': 2', '2, '2) has a maximum averaged rate of heat emission (MARHE) of less than or equal to 90 kW/mwith 50 kW/mirradiance level test condition according to ISO 5660-1;'}], 'wherein the sheet, at a thickness of 1.0 mm, passes at least one of the following heat release requirementswherein the sheet, at the thickness of 1.0 mm, has a smoke density of less than or equal to 200 particles after four minutes of burning according to ASTM E662-06; andwherein the sheet is thermoformable.2. The lightweight polymeric sheet of claim 1 , wherein the sheet has a density of greater than 0.60 g/cmto less than or equal to 1.1 g/cm.32. The sheet of any of - claims 1 , wherein the sheet has self-texturing.43. The sheet of any of - claims 1 , wherein at least one side of the sheet has a gloss level of less than 90 g.u. as measured at 60 degrees using ATSM DS2457-08e1 and a BYK Gardner Gloss Meter.5. ...

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Номер записи: 19
05-01-2017 дата публикации

Composition For Preparing A Polymeric Foam

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

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

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Номер записи: 20
05-01-2017 дата публикации

Nanocellular foam with solid flame retardant

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

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

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Номер записи: 21
05-01-2017 дата публикации

THERMALLY EXPANDABLE COMPOSITIONS

Номер: US20170002164A1
Автор: Kohlstrung Rainer, Rappmann Klaus
Принадлежит:

The present application relates to a thermally expandable composition containing an endothermic chemical blowing agent, to shaped bodies containing said composition and to a method for sealing and filling cavities in components, for strengthening or reinforcing components, in particular hollow components, and for bonding movable components using shaped bodies of this type. 1. A thermally expandable composition containing at least one endothermic chemical blowing agent , at least one reactive binder and at least one of a curing agent and an accelerator.2. The thermally expandable composition according to claim 1 , wherein the at least one endothermic chemical blowing agent is selected from bicarbonates claim 1 , solid polycarboxylic acids claim 1 , solid polycarboxylic acid salts and mixtures thereof; and the at least one reactive binder is selected from the group consisting of epoxies claim 1 , rubbers claim 1 , peroxide-crosslinkable polymers and combinations thereof.3. The thermally expandable composition according to claim 2 , wherein the endothermic chemical blowing agent contains a bicarbonate of formula XHCO claim 2 , wherein X is a cation.4. The thermally expandable composition according to claim 3 , wherein X is selected from Na claim 3 , K claim 3 , NH claim 3 , ½ Zn claim 3 , ½ Mg claim 3 , ½ Ca and mixtures thereof.5. The thermally expandable composition according to claim 2 , wherein the endothermic chemical blowing agent contains a mixture of 2 or more bicarbonates.6. The thermally expandable composition according to claim 2 , wherein the solid polycarboxylic acids are selected from organic di- claim 2 , tri- claim 2 , tetra- acids and combinations thereof.7. The thermally expandable composition according to claim 2 , wherein the solid polycarboxylic acids comprise hydroxyl-functionalized and/or unsaturated di- claim 2 , tri- claim 2 , tetra- or polycarboxylic acids.8. The thermally expandable composition according to claim 2 , wherein the endothermic ...

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Номер записи: 22
02-01-2020 дата публикации

Polymer foam and preparation method thereof

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

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

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Номер записи: 23
02-01-2020 дата публикации

METHOD FOR PHYSICALLY FOAMING A POLYMER MATERIAL AND FOAMED ARTICLE

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

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

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Номер записи: 24
07-01-2021 дата публикации

COMPOSITIONS AND METHODS FOR FOAM STIMULATION

Номер: US20210002444A1
Автор: BANKI Reza, Dwarakanath Varadarajan, Malik Taimur, Nizamidin Nabijan, SALMAN Mohamad, Winslow Gregory A., ZHOU Jimin Daniel, ZOU Lin
Принадлежит:

Disclosed are foam precursor compositions, foamed compositions, and methods of using these foamed compositions for the stimulation of unconventional reservoirs. 1. A method for stimulating an unconventional subterranean formation comprising:(a) providing an existing wellbore in fluid communication with an unconventional subterranean formation, wherein the existing wellbore has a pressure that is less than original reservoir pressure;(b) injecting a foamed composition through the existing wellbore into the unconventional subterranean formation, the foamed composition comprising a surfactant package comprising a primary foaming surfactant and optionally one or more secondary surfactants, wherein the foamed composition is injected at a pressure and flowrate effective to increase the existing wellbore pressure;(c) allowing the foamed composition to contact a rock matrix of the unconventional subterranean formation for a period of time; and(d) producing fluids from the unconventional subterranean formation through the wellbore.2. The method of claim 1 , wherein step (b) comprises injecting the foamed composition at a pressure and flowrate effective to:increase the existing wellbore pressure by at least 30%;increase the existing wellbore pressure to from greater than the original reservoir pressure to 150% of the original reservoir pressure;increase the existing wellbore pressure without refracturing the existing wellbore; orany combination thereof.3. The method of claim 1 , wherein step (b) comprises:combining a foam precursor solution with an expansion gas to form the foamed composition above ground, and injecting the foamed composition through the existing wellbore into the unconventional subterranean formation; orcombining a foam precursor solution with an expansion gas downhole to form the foamed composition in situ within the existing wellbore.4. The method of claim 1 , wherein the period of time in step (c) comprises a period of time effective to allow the foamed ...

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Номер записи: 25
03-01-2019 дата публикации

APPARATUS FOR DISPERSING A GAS, FOR EXAMPLE CARBON DIOXIDE, IN AT LEAST ONE REACTIVE RESIN

Номер: US20190002661A1
Автор: CORTI MAURIZIO, VOLPATO MARCO
Принадлежит:

The invention concerns an apparatus () for the dispersion of an expansion gas even in supercritical conditions, e.g. carbon dioxide, in a reactive resin, of the kind in which a reaction chamber having an input () for gas and an input () for resin is provided. Advantageously, the chamber is a dispersion and containment chamber made into a casing () of predetermined high resistance susceptible to sustain high pressure and is divided into two sections () by a head () of a dispersion and mixing cylinder-piston group () in fluid communication between themselves by means of at least one pouring passage () provided with a static mixer (), motor means () being provided for piston () control of said mixing cylinder-piston group (). The invention also concerns a process for the formation of a polyurethane foam starting with the dispersion of carbon dioxide, even supercritical, in a reactive resin in which at least one initial dispersion and mixing controlled phase of the two components is provided in a dispersion and containment chamber under pressure divided into two sections () by a head () of a cylinder-piston mixing group () in fluid communication between themselves by means of at least one pouring passage () provided with a static mixer () and in which adduction, dispersion and mixing occurs under high pressure (at least greater than 75 bar). 1. Apparatus for the dispersion and mixing of an expansion gas , e.g. carbon dioxide , in a reactive resin , comprising:a mixing chamber having a supply input for the gas and a supply input for the resin is provided and comprising:said chamber being a dispersion and containment chamber made in a casing of predetermined high resistance susceptible to sustain high pressure;said chamber being divided into two sections by a head of a dispersion and mixing cylinder-piston group, said two sections being in fluid communication between themselves by means of at least one pouring passage;a static mixer in said pouring passage;a motor for ...

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Номер записи: 26
13-01-2022 дата публикации

RHEOLOGY MODIFICATION BY POROUS GEL PARTICLES

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

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

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Номер записи: 27
13-01-2022 дата публикации

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

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

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

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Номер записи: 28
14-01-2021 дата публикации

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

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

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

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Номер записи: 29
12-01-2017 дата публикации

POLYOLEFIN RESIN FOAM PARTICLES, FOAM-PARTICLE MOULDED BODY, AND COMPOSITE STACKED BODY INCLUDING SAID MOULDED BODY

Номер: US20170009038A1
Автор: OIKAWA Masaharu, SHINOHARA Mitsuru
Принадлежит: JSP CORPORATION

The present invention relates to polyolefin resin expanded beads containing multi-layer expanded beads containing a core layer in a foamed state containing a polyolefin resin and a cover layer coated on the core layer, the cover layer containing a mixed resin of a polyolefin resin (A) and at least one resin (B) selected from a polystyrene resin and a polyester resin, and the mixed resin having a weight ratio (A/B) of the polyolefin resin (A) and the resin (B) of from 15/85 to 90/10, and a composite laminated body using an expanded beads molded body thereof, and the expanded beads molded body is excellent in solvent resistance and also excellent in adhesiveness to a thermosetting resin on the surface of the molded body, and can provide a composite laminated body excellent in productivity with a thermosetting resin. 1. Polyolefin resin expanded beads comprising multi-layer expanded beads containing a core layer in a foamed state containing a polyolefin resin and a cover layer coated on the core layer , the cover layer containing a mixed resin of a polyolefin resin (A) and at least one resin (B) selected from a polystyrene resin and a polyester resin , and the mixed resin having a weight ratio (A/B) of the polyolefin resin (A) and the resin (B) of from 15/85 to 90/10.2. The polyolefin resin expanded beads according to claim 1 , wherein a melting point (Ts) of the polyolefin resin (A) contained in the cover layer is lower than a melting point (Tc) of the polyolefin resin contained in the core layer.3. The polyolefin resin expanded beads according to claim 1 , wherein the mixed resin contained in the cover layer further contains a compatibilizing agent of the polyolefin resin (A) and the resin (B) claim 1 , and a content of the compatibilizing agent is from 1 to 20 parts by weight per 100 parts by weight of the total amount of the polyolefin resin (A) and the resin (B).4. The polyolefin resin expanded beads according to claim 1 , wherein the polyolefin resin contained in ...

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Номер записи: 30
14-01-2016 дата публикации

Method for manufacturing foamed polypropylene-resin particles

Номер: US20160009887A1
Автор: Jun Fukuzawa
Принадлежит: Kaneka Corp

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

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Номер записи: 31
27-01-2022 дата публикации

METHOD FOR IMPROVING AQUIFER REMEDIATION USING IN-SITU GENERATED NITROGEN FOAM

Номер: US20220025252A1
Автор: Al-Taq Ali Abdullah, AlYousif Zuhair
Принадлежит: Saudi Arabian Oil Company

A method of remediation of a water-bearing formation is disclosed. A first solution containing a nitrogen-containing compound and a second solution containing a nitrite-containing compound are introduced into the water-bearing formation. The two solutions intermix within the formation such that a foam is generated within the formation. 1. A method for remediation of a water-bearing formation comprising the steps of:introducing into the first aqueous solution and a second aqueous solution into the water-bearing formation such that the first aqueous solution and the second aqueous solution intermix within the water-bearing formation; andmaintaining the intermixed solution in the water-bearing formation such that a foam is generated in situ;where the intermixed solution comprises a foaming agent;where the first aqueous solution comprises a nitrogen-containing compound; andwhere the second aqueous solution comprises a nitrite-containing compound.2. The method of where the nitrogen-containing compound is selected from the group consisting of an ammonium-containing compound claim 1 , a primary amine-containing compound claim 1 , and combinations thereof.3. The method of where the ammonium-containing compound is selected from the group consisting of ammonium hydroxide claim 2 , ammonium chloride claim 2 , ammonium bromide claim 2 , ammonium nitrate claim 2 , ammonium nitrite claim 2 , ammonium acetate claim 2 , ammonium formate claim 2 , ammonium sulfate claim 2 , and ammonium carbonate.4. The method of claim 2 , where the primary amine-containing compound is selected from the group consisting of ethylene diamine claim 2 , formamide claim 2 , acetamide claim 2 , urea claim 2 , benzyl urea claim 2 , butyl urea claim 2 , hydrazine claim 2 , phenylhydrazine claim 2 , and phenylhydrazine hydro-chloride.5. The method of where the nitrite-containing compound is selected from the group consisting of ammonium nitrite claim 1 , calcium nitrite claim 1 , sodium nitrite claim 1 , ...

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Номер записи: 32
15-01-2015 дата публикации

POLYMERIC MATERIAL FOR CONTAINER

Номер: US20150014879A1
Автор: Cain Tony, Driskill Philip A., Strasser Rolland, Sun David Dezhou
Принадлежит:

A formulation for producing a polymeric material including high-density polyethylene, a chemical blowing agent, and other optional components is described. 1. A formulation for forming an insulative cellular non-aromatic polymeric material comprising(a) at least one high density polyethylene (HDPE) base resin and(b) a chemical blowing agent.2. The formulation of claim 1 , wherein the HDPE is a high melt strength HDPE.3. The formulation of claim 1 , wherein the HDPE is long-chain branching HDPE.4. The formulation of claim 1 , wherein the unimodal HDPE is a hexene copolymer.5. The formulation of claim 4 , wherein the HDPE base resin is about 85 wt % to 99.9 wt %.6. The formulation of claim 5 , wherein the HDPE base resin is about 10% to 100% virgin HDPE.7. The formulation of claim 1 , wherein the chemical blowing agent is about 0.1 wt % to 2 wt %.8. The formulation of claim 1 , further comprising a nucleating agent.9. The formulation of claim 8 , wherein the nucleating agent is selected from the group consisting of talc claim 8 , CaCO claim 8 , mica claim 8 , and mixtures of at least two of the foregoing.10. The formulation of claim 1 , wherein the nucleating agent is about 0.1 wt % to 7 wt %.11. The formulation of claim 10 , wherein the formulation lacks talc.12. The formulation of claim 11 , further comprising a slip agent.13. The formulation of claim 12 , wherein the slip agent is about 0 wt % to 3 wt %.14. The formulation of claim 1 , further comprising a colorant.15. The formulation of claim 14 , wherein the colorant is about 0 wt % to 4 wt %.16. The formulation of claim 1 , wherein the base resin is 100% virgin HDPE.17. The formulation of 1 claim 1 , wherein the HDPE base resin comprises a first HDPE base resin that comprises 100% virgin HDPE and a second HDPE base resin that comprises regrind.18. A method of forming an insulative container comprising blow molding a tube or parison comprising an insulative cellular non-aromatic polymeric material comprising (a) ...

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Номер записи: 33
03-02-2022 дата публикации

PUMPABLE, THERMALLY CURABLE AND EXPANDABLE PREPARATIONS

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

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

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Номер записи: 34
03-02-2022 дата публикации

High-strength eTPU

Номер: US20220033609A1
Автор: Christiane Martina DIECKMANN, Dennis JOPP, Edgar SCHANDER, Elmar Poeselt, Peter Gutmann, Rebecca SPREEN
Принадлежит: BASF SE

Foamed pellets contain a thermoplastic polyurethane obtainable or obtained by reacting a polyisocyanate composition (IC), containing at least one aliphatic diisocyanate having a number-average molecular weight of less than 200 g/mol, at least one chain extender (CE1), and a polyol composition (PC). A process can be used for the production of such foamed pellets. The foamed pellets can be used for the production of a molded body.

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Номер записи: 35
17-01-2019 дата публикации

ORGANIC AMINE SALT COMPOUNDS HAVING CO2-DONATING ANIONS AND THEIR USE AS FOAMING AGENT

Номер: US20190016673A1
Автор: BI Gehua, BI Yusui
Принадлежит: Shandong University of Technology

An organic amine salt compounds of general formula A[B](I) is disclosed, wherein A is a CO-donating anion with a valence of −n, wherein n=1, 2 or 3; each B comprises: ammonium ion, hydrazinium ion and/or organic amine B cation; wherein 49. The foaming agent according to claim 48 , wherein (1a) H[OCH(R)CH(R)]— is H(OCHCH)— claim 48 , H(OCHCH(CH))— claim 48 , H(OCH(CH)CH)— claim 48 , H(OCHCH(CH))— claim 48 , H(OCH(CH)CH)— claim 48 , H(OCHCH(CHCl))— claim 48 , H(OCH(CHCl)CH)— or H(OCHCH(CBr))—.50. The foaming agent according to claim 48 , wherein: the water content in the foaming agent is from >0 wt % to 40 wt %; and/orthe pH of the foaming agent is 7.5-10.51. The foaming agent according to claim 50 , wherein: the water content in the foaming agent is 5-35 wt %; and/orthe pH of the foaming agent is 7.8-9.5.52. The foaming agent according to claim 51 , wherein: the water content in the foaming agent is 10-30 wt %; and/orthe pH of the foaming agent is 8-9.5.53. The foaming agent according to claim 52 , wherein: the water content in the foaming agent is 15-25 wt %.54. The foaming agent according to claim 48 , wherein: the total content of the compounds of the general formula (I) and water in the foaming agent is 70-100 wt % claim 48 , based on the total weight of the foaming agent.55. The foaming agent according to claim 54 , wherein: the total content of the compounds of the general formula (I) and water in the foaming agent is 80-99.999% claim 54 , based on the total weight of the foaming agent.56. The foaming agent according to claim 55 , wherein: the total content of the compounds of the general formula (I) and water in the foaming agent is 85-99.0% claim 55 , based on the total weight of the foaming agent.58. The foaming agent according to claim 57 , wherein the organic amine compound (B) is an organic amine compound having N—R group(s) claim 57 , and the organic amine compound (B) having N—R group(s) is formed by substitution on ammonia or on at least one N atom of ...

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Номер записи: 36
17-01-2019 дата публикации

THERMALLY CURABLE COMPOSITION

Номер: US20190016866A1
Автор: Ohkubo Makoto, Okuno Hiroko, Tsuno Shingo
Принадлежит:

A thermally curable composition having excellent vibration damping properties, and having a small decrease in strength even if heated at high temperature is provided. The thermally curable composition contains a component (a) comprising (a1) a solid rubber, (a2) an olefinic double bond-containing polymer which is liquid or pasty at 22° C., (a3) a hydrocarbon resin in an amount of 0 to 22% by weight based on the total weight of the composition, and (a4) a liquid polydiene; and a component (b) comprising (b1) sulfur in an amount of 1 to 3% by weight based on the total weight of the composition, and (b2) an organic vulcanizing agent in an amount of 0 to 0.2% by weight based on the total weight of the composition. 1. A thermally curable composition , comprising: (a1) a solid rubber,', '(a2) an olefinic double bond-containing polymer which is liquid or pasty at 22° C.,', '(a3) a hydrocarbon resin in an amount of 0 to 22% by weight based on the total weight of the composition, and', '(a4) a liquid polydiene; and, 'a component (a) comprising (b1) sulfur in an amount of 1 to 3% by weight based on the total weight of the composition, and', '(b2) an organic vulcanizing agent in an amount of 0 to 0.2% by weight based on the total weight of the composition., 'a component (b) comprising2. The thermally curable composition according to claim 1 , further comprising a component (c) comprising:(c1) a physical blowing agent in an amount of 0 to 3% by weight based on the total weight of the composition, and(c2) a chemical blowing agent in an amount of 0 to 0.2% by weight based on the total weight of the composition.3. The thermally curable composition according to claim 1 , wherein the amount of the organic vulcanizing agent is 0% by weight.4. The thermally curable composition according to claim 2 , wherein the amount of the chemical blowing agent is 0% by weight.5. The thermally curable composition according to claim 1 , wherein the olefinic double bond-containing polymer (a2) has a ...

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Номер записи: 37
17-01-2019 дата публикации

PARTICULATE POLYAMIDE, AND METHOD FOR PREPARING THE PARTICULATE POLYAMIDE

Номер: US20190016867A1
Автор: ARAI Yoko, Kamada Yasuo, OYAMA Koichiro, YAMABE Atsumi
Принадлежит: RICOH COMPANY, LTD.

A particulate polyamide is provided. The particulate polyamide is porous and includes at least one of polyamide 4 and polyamide 3. In addition, the particulate polyamide has a particle diameter (d50) of from 10 μm to 1,000 μm and a particle diameter dispersion degree (Dv/Dn) of not greater than 3.0, wherein Dv represents the volume average particle diameter of the particulate polyamide, and Dn represents the number average particle diameter of the particulate polyamide. 1. A particulate polyamide comprising at least one of polyamide 4 and polyamide 3 , wherein the particulate polyamide is porous and has a particle , diameter (d50) of from 10 μm to 1 ,000 μm and a particle diameter dispersion degree (Dv/Dn) of not greater than 3.0 , wherein Dv represents a volume average particle diameter of the particulate polyamide and Dn represents a number average particle diameter of the particulate polyamide.213-. (canceled) This patent application is based on and claims priority pursuant to 35 U.S.C. § 119 to Japanese Patent Application No. 2015-055551, 2015-083124, and 2016-004568, filed on Mar. 19, 2015, Apr. 15, 2015, and Jan. 13, 2016, respectively, in the Japan Patent Office, the entire disclosure of which is hereby incorporated by reference herein.This disclosure relates to a particulate polyamide, and to a method for preparing the particulate polyamide.Particulate polyamide produces good light scattering effect while having good absorption ability (such as oil absorption ability), and therefore it is considered to use particulate polyamide as an adsorbent or a component of cosmetics such as foundation cream or cleansing cream.In addition, polyamide 4 (i.e., nylon 4) which is a polymer of 2-pyrrolidone, and polyamide 3 (i.e., nylon 3) which is a polymer of 2-azetidinone can decompose in soil while having good hygroscopic property.With respect to the method for preparing polyamide 4, a method including polymerizing 2-pyrrolidone in the presence of a basic catalyst and an ...

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Номер записи: 38
24-01-2019 дата публикации

POLYOLEFIN ELASTOMER COMPOSITIONS AND METHODS OF MAKING THE SAME

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

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

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Номер записи: 39
26-01-2017 дата публикации

NEW FOAM MATERIALS

Номер: US20170022344A1
Автор: Kenkare Nirupama, Kwan Kermit S.
Принадлежит:

A foamable composition comprising from 60 to 99.88% by weight (% wt.) of at least one poly(aryl ether sulfone), from 0.10 to 10.00% by weight (% wt.) of at least one olefinic polymer, from 0.01 to 5.00% by weight (% wt.) of at least one tetrazole compound and from 0.01 to 2.50% by weight (% wt.) of at least one additive selected from the group of titanium dioxide (Ti02), clays, talc, silicates, silica, aluminates, barites, titanates, borates, nitrides, carbon-based materials or combinations thereof, all % wt. are relative to the total weight of the composition (C). Foam materials made from said foamable compositions and articles made from said foam materials. 114-. (canceled)17. The foamable composition (C) according to claim 15 , wherein the olefinic polymer is selected from the group consisting of a very low density polyethylene claim 15 , a linear low density polyethylene claim 15 , a low density polyethylene claim 15 , a propylene homopolymer claim 15 , or a propylene copolymer.19. The foamable composition (C) according to claim 15 , wherein the additive is selected from the group of TiO claim 15 , silicates claim 15 , and talc.20. The composition (C) according to comprising from 0.01 to 1.00 wt. % of the additive.21. The composition (C) according to further comprising one or more additional ingredient (I) other than the poly(aryl ether sulfone) PAES polymer claim 15 , the olefinic polymer claim 15 , the tetrazole compound claim 15 , and the additive claim 15 , selected from the group consisting of (i) colorants claim 15 , (ii) pigments claim 15 , (iii) light stabilizers claim 15 , (iv) heat stabilizers claim 15 , (v) antioxidants claim 15 , (vi) acid scavengers claim 15 , (vii) processing aids claim 15 , (viii) internal lubricants and/or external lubricants claim 15 , (ix) flame retardants claim 15 , (x) smoke-suppressing agents claim 15 , (xi) anti-static agents claim 15 , (xii) anti-blocking agents claim 15 , (xiii) conductivity additives claim 15 , (xiv) ...

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Номер записи: 40
17-04-2014 дата публикации

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

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

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

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Номер записи: 41
25-01-2018 дата публикации

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

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

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

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Номер записи: 42
25-01-2018 дата публикации

PROPYLENE RESIN FOAM PARTICLES AND FOAM PARTICLE MOLDED ARTICLE

Номер: US20180022886A1
Автор: KOSHITA Nobumasa, OIKAWA Masaharu, TAKAGI Syouta
Принадлежит:

Provided is an expanded propylene resin bead including a core layer in a foamed state, which includes a propylene-based resin composition (a) satisfying the following (i) and (ii); and a cover layer which includes an olefin-based resin (b) satisfying the following (iii) or (iv): 1. An expanded propylene resin bead comprising a core layer being in a foamed state and constituted of a propylene-based resin composition (a) and a cover layer covering the core layer and constituted of an olefin-based resin (b) ,the propylene-based resin composition (a) satisfying the following (i) and (ii), and the olefin-based resin (b) satisfying the following (iii) or (iv):(i) the propylene-based resin composition (a) is a mixture of 65% by weight to 98% by weight of a propylene-based resin (a1) having a melting point of 145° C. to 165° C. and a flexural modulus of 1,200 MPa or more and 35% by weight to 2% by weight of a propylene-based resin (a2) having a melting point of 100° C. to 145° C. and a flexural modulus of 800 MPa to 1,200 MPa, provided that a sum total weight of the propylene-based resin (a1) and the propylene-based resin (a2) is 100% by weight;(ii) a difference between the melting point of the propylene-based resin (a1) and the melting point of the propylene-based resin (a2) [(melting point of a1)-(melting point of a2)] is 5° C. to 25° C.;(iii) the olefin-based resin (b) is a crystalline olefin-based resin having a melting point (TmB) that is lower than a melting point (TmA) of the propylene-based resin composition (a), with a difference between the melting point (TmA) and the melting point (TmB) [TmA-TmB] being more than 0° C. and 80° C. or less; and(iv) the olefin-based resin (b) is a non-crystalline olefin-based resin having a softening point (TsB) that is lower than the melting point (TmA) of the propylene-based resin composition (a), with a difference between the melting point (TmA) and the softening point (TsB) [TmA-TsB] being more than 0° C. and 100° C. or less.2. ...

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Номер записи: 43
10-02-2022 дата публикации

NON-ISOCYANATE POLYURETHANE PRODUCTS AND METHODS OF MAKING THE SAME

Номер: US20220041830A1
Автор: Dong Tao, PIENKOS Philip T.
Принадлежит:

The present disclosure relates to a method for making a non-isocyanate polyurethane (NIPU) foam, where the method includes decomposing a blowing agent having at least one of an amine carbamate salt and/or an amine bicarbonate salt to form a diamine and COin the presence of a molecule comprising a plurality of cyclic carbonate functional groups and reacting the diamine with at least a portion of the cyclic carbonate functional groups to form the NIPU foam. In some embodiments of the present disclosure, the reacting and the decomposing may occur at substantially the same rate. 1. A method for making a non-isocyanate polyurethane (NIPU) foam , the method comprising:{'sub': '2', 'decomposing a blowing agent comprising at least one of an amine carbamate salt or an amine bicarbonate salt to form a diamine and COin the presence of a molecule comprising a plurality of cyclic carbonate functional groups; and'}reacting the diamine with at least a portion of the cyclic carbonate functional groups to form the NIPU foam.2. The method of claim 1 , wherein the reacting and the decomposing occur at substantially the same rate.3. The method of claim 1 , wherein the molecule is derived from a biomass.4. The method of claim 4 , wherein the molecule is derived from at least one of a soybean oil claim 4 , a linseed oil claim 4 , or an algae oil.5. The method of wherein the molecule is produced by carbonating an unsaturated lipid or oil.6. The method of claim 1 , wherein the NIPU foam has a density between about 0.01 g/cmand about 0.80 g/cm.7. The method of claim 1 , wherein the decomposing is accomplished by heating.8. The method of claim 1 , wherein the heating is performed by at least one of conductive heating claim 1 , radiative heating claim 1 , or radio frequency heating.9. The method of claim 7 , wherein the heating results in a temperature between about 50° C. and about 200° C.10. The method of claim 1 , wherein the diamine comprises between 1 and 10 carbon atoms.11. The method ...

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Номер записи: 44
10-02-2022 дата публикации

MICRO, SUB-MICRON, AND/OR NANO-CELLULAR FOAMS BASED ON SILOXANE CONTAINING (CO)POLYMERS AND BLENDS

Номер: US20220041831A1
Автор: GOOSSENS Johannes Gerardus Petrus, HAGENAARS Arno, VAN ES Martin
Принадлежит:

This disclosure describes micro-, sub-micron, and nano-cellular polymer foams formed from siloxane containing (co)polymers and blends, and systems and methods of formation thereof. The micro, sub-micron, and nano-cellular polymer foam has a density of less than or equal to 300 kg/m. 1. A polymer foam comprising:a siloxane based copolymer,{'sup': '3', 'wherein the polymer foam has a density of less than or equal to 300 kg/mas measured according to ASTM D1622,'}{'b': '100', 'wherein the polymer foam has an average cell size of less than 4 microns, and wherein the average cell size is calculated based on cryo-fracturing the polymer foam to generate a cross-section of the polymer foam which is analyzed by an electron microscope to determine an average of a maximum transverse dimension and a minimum transverse dimension for randomly or pseudo-randomly selected cells.'}2. The polymer foam of claim 1 , wherein the polymer foam comprises a bead foam claim 1 , wherein the average cell size is 10 nm to 3.9 microns claim 1 , wherein the polymer foam has a relative density of between 0.15 and 0.3 claim 1 , and wherein the relative density is based on a density of the polymer foam divided by a density of polymer material of the polymer foam claim 1 , the polymer material including the siloxane based copolymer.3. The polymer foam of claim 1 , wherein the polymer foam comprises a nano-cellular polymer foam and has a cell density of greater than or equal to 10E15 cells per cubic centimeter and the average cell size is 10 nm to 500 nm claim 1 , and wherein the cell density is based on image analysis of at least a portion of the cross-section of the polymer foam.4. The polymer foam of claim 1 , wherein the polymer foam comprises a sub-micron cellular polymer foam and has a cell density between 10E12 and 10E15 cells per cubic centimeter and the average cell size is 0.5 microns to 1 micron claim 1 , and wherein the cell density is based on image analysis of at least a portion of the ...

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Номер записи: 45
24-01-2019 дата публикации

FOAMED INJECTION MOULDED ARTICLE

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

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

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Номер записи: 46
24-01-2019 дата публикации

COMPOSITION FOR PREPARING A FOAM, FOAM, AND SHOE EMPLOYING THE SAME

Номер: US20190023884A1
Автор: LIN Hsuan-Tsung, SHIH HSI-HSIN, TSAI Han-Ming, TU Ying-Pin
Принадлежит: TSRC CORPORATION

A composition for preparing a foam, a foam, and a shoe employing the foam are provided. The composition for preparing a foam includes 3-30 parts by weight of a first polymer and at least one of a second polymer and a third polymer. The first polymer is cyclic olefin polymer (COP), cyclic olefin copolymer (COC), metallocene based cyclic olefin copolymer (mCOC), fully hydrogenated conjugated diene-vinyl aromatic copolymer, or a combination thereof. The total weight of the second polymer and the third polymer is 70-97 parts by weight. The second polymer is polyolefin, olefin copolymer, or a combination thereof. The third polymer is conjugated diene-vinyl aromatic copolymer, partially hydrogenated conjugated diene-vinyl aromatic copolymer, or a combination thereof. The total weight of the first polymer and at least one of the second polymer and the third polymer is 100 parts by weight. 1. A composition for preparing a foam , comprising:3-30 parts by weight of a first polymer, wherein the first polymer is cyclic olefin polymer (COP), cyclic olefin copolymer (COC), metallocene based cyclic olefin copolymer (mCOC), fully hydrogenated conjugated diene-vinyl aromatic copolymer, or a combination thereof; andat least one of a second polymer and a third polymer, wherein the total weight of the second polymer and the third polymer is 70-97 parts by weight, the second polymer is polyolefin, olefin copolymer, or a combination thereof, the third polymer is conjugated diene-vinyl aromatic copolymer, partially hydrogenated conjugated diene-vinyl aromatic copolymer, or a combination thereof, and the total weight of the first polymer and at least one of the second polymer and the third polymer is 100 parts by weight.2. The composition for preparing a foam as claimed in claim 1 , wherein the cyclic olefin copolymer is a copolymer of a norbornene-based monomer and an olefin-based monomer.3. The composition for preparing a foam as claimed in claim 2 , wherein the norbornene-based monomer ...

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Номер записи: 47
26-01-2017 дата публикации

ELECTRICALLY CONDUCTIVE RUBBER COMPOSITION, TRANSFER ROLLER, AND IMAGE FORMING APPARATUS

Номер: US20170025197A1
Автор: SATOYOSHI Naoyuki, TANIO Yusuke
Принадлежит: SUMITOMO RUBBER INDUSTRIES, LTD.

An electrically conductive rubber composition is provided, which comprises a rubber component including an SBR, an EPDM and an epichlorohydrin rubber, a crosslinking component and an azodicarbonamide foaming agent having an average particle diameter of 3 to 11 μm. The azodicarbonamide foaming agent is blended in a proportion of 0.5 to 8 parts by mass based on 100 parts by mass of the overall rubber component. A transfer roller () is produced by extruding the electrically conductive rubber composition into an elongated tubular body, and continuously feeding out the tubular body in the elongated state without cutting the tubular body to continuously pass the tubular body through a microwave crosslinking device and a hot air crosslinking device to continuously foam and crosslink the tubular body. 1. An electrically conductive rubber composition which can be foamed and crosslinked by means of a continuous crosslinking apparatus including a microwave crosslinking device and a hot air crosslinking device , the electrically conductive rubber composition comprising:a rubber component including at least a styrene butadiene rubber, an ethylene propylene diene rubber and an epichlorohydrin rubber;a crosslinking component for crosslinking the rubber component; anda foaming component for foaming the rubber component;wherein the foaming component comprises an azodicarbonamide foaming agent having an average particle diameter of not less than 3 μm and not greater than 11 μm in a proportion of not less than 0.5 parts by mass and not greater than 8 parts by mass based on 100 parts by mass of the overall rubber component.2. The electrically conductive rubber composition according to claim 1 , wherein the rubber component comprises at least one polar rubber selected from the group consisting of an acrylonitrile butadiene rubber claim 1 , a chloroprene rubber claim 1 , a butadiene rubber and an acryl rubber. The present application is a 37 C.F.R. §1.53(b) divisional of U.S. application ...

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Номер записи: 48
23-01-2020 дата публикации

Method for producing sheet

Номер: US20200024417A1
Автор: Shigeki Kuroki, Yuichiro Sumi
Принадлежит: TBM Co Ltd

Provided is a method for producing a foamable sheet with a convenient process. The method for producing a sheet includes the steps of: molding a resin composition including a thermoplastic resin and inorganic substance particles in a ratio of 80:20 to 20:80 and further including a foaming agent into a sheet-like product and stretching the sheet after being molded. The foaming agent preferably includes a polyethylene resin as a carrier resin and a hydrogencarbonate as an active component that acts as a thermally decomposable foaming agent serving as a foam nucleating agent.

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Номер записи: 49
23-01-2020 дата публикации

REVERSIBLY CROSS-LINKABLE RESIN

Номер: US20200024418A1
Автор: Gawryla Matthew Daniel
Принадлежит:

Reversibly cross-linkable foam is provided. The reversibly cross-linked foam includes a first polymeric material, at least one reversibly cross-linkable monomer polymerized with the first polymeric material, and at least one blowing agent. The reversibly cross-linkable co-polymeric foam is thermally stable at temperatures of at least 10 degrees higher than otherwise identical polymeric foam that does not include the reversibly cross-linkable agent polymerized with the first polymeric material. 1. A reversibly cross-linkable foamable mixture comprising:a first polymeric material and;at least one cross-linking agent copolymerized with said first polymeric material, wherein said reversibly cross-linkable foamable mixture is thermally stable at temperatures of at least 10 degrees Celsius higher than otherwise identical polymeric foam that does not include the cross-linking agent copolymerized with the first polymeric material.2. The reversibly cross-linkable foamable mixture of claim 1 , wherein said first polymeric material comprises an alkenyl aromatic polymer.3. The reversibly cross-linkable foamable mixture of claim 2 , wherein said alkenyl aromatic polymer is derived from one or more of styrene claim 2 , α-methylstyrene claim 2 , ethylstyrene claim 2 , vinyl benzene claim 2 , vinyl toluene claim 2 , chlorostyrene claim 2 , and bromostyrene.4. The reversibly cross-linkable foamable mixture of claim 1 , wherein said cross-linking agent comprises a metal-ligand complex ion.5. The reversibly cross-linkable foamable mixture of claim 4 , wherein said metal-ligand complex ion includes a hydroxyl-containing (meth)acrylate.6. The reversibly cross-linkable foamable mixture of claim 4 , wherein said ligand is at least one of a polyester (meth)acrylate and a polyurethane (meth)acrylate.7. The reversibly cross-linkable foamable mixture of claim 4 , wherein said metal-ligand complex comprises a terpyridine ligand reacted with a metal ion.8. The reversibly cross-linkable foamable ...

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Номер записи: 50
02-02-2017 дата публикации

PACKING MATERIAL COMPRISING STARCH-MODIFIED POLYURETHANE FOR THE BIOFILTRATION OF ORGANIC COMPOUNDS PRESENT IN GASEOUS OR LIQUID EFFLUENTS, PRODUCTION METHODS THEREOF AND BIOFILTRATION SYSTEM

Номер: US20170028381A1
Автор: Arriaga García Sonia Lorena, Escobar Barrios Vladimir Alonso, Gutiérrez Acosta Olga Brígida
Принадлежит: Instituto Potosino de Investigación Científica y Tecnológica A.C.

The invention relates to a packing material for biofilters, having a polyurethane polymer and starch. The packing material is resistant to compaction, can sorb pollutant organic compounds and reduces the start-up time of the biofilter. The packing material can be used as a substrate in the biofiltration of volatile and/or semi-volatile organic compounds present in gaseous or liquid effluents. 136-. (canceled)37. A packing material comprising from 20% to 95% of a polyurethane polymer by weight of the packing material , wherein said polyurethane polymer is obtained from a polyurethane pre-polymer containing from 10 to 18% of free isocyanate groups , between 5% to 80% by weight of the packing material of starch , between 0.5% to 2.0% in weight of a foaming agent and from 0.25% to 1.0% by weight of water related to the polyurethane pre-polymer.38. The packing material according to claim 37 , wherein said polyurethane pre-polymer is selected from the group consisting of polyurethane-based pre-polymers based on polyester or polyether claim 37 , polyurethane pre-polymer from polyesters and polyurethane aqueous dispersions from polyols and/or polyesters.39. The packing material according to claim 37 , wherein said starch is derived from any vegetable source.40. The packing material according to claim 39 , wherein said vegetable source is corn claim 39 , oat claim 39 , potato or rice.41. The packing material according to claim 37 , wherein said foaming agent is an amine compound.42. The packing material according to claim 41 , wherein said amine compound is an amine oxide.43. The packing material according to claim 42 , wherein said amine oxide is selected from the group consisting of coconut dimethyl amine oxide claim 42 , dimethyl lauryl amine oxide claim 42 , decyl dimethyl amine oxide claim 42 , and alkyl dimethyl amine oxide.44. The packing material according to claim 37 , wherein the packing material has a water retention capacity between 12% and 61% by weight of the ...

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Номер записи: 51
02-02-2017 дата публикации

POLYMER FOAM AND METHOD FOR PREPARING THE SAME

Номер: US20170029589A1
Автор: CHIU Yuen-Yuen D., FU Dajiong, LEE Ly James, Li Dachao, LIN Chiang-Hsiang, Yen Ying-Chieh
Принадлежит:

Polymer foam and a method for preparing the same are disclosed. In the present disclosure, the method sequentially comprises the following steps: providing a polymer body; performing a pressure-induced flow (PIF) process on the polymer body at a first predetermined temperature and a first predetermined pressure for a pressure holding time, to obtain a polymer sheet; and performing a foaming process on the polymer sheet by using a foaming agent at a second predetermined temperature and a second predetermined pressure for a saturation time, to obtain polymer foam. 1. A method for preparing polymer foam , comprising the following steps:providing a polymer body;performing a pressure-induced flow (PIF) process on the polymer body at a first predetermined temperature and a first predetermined pressure for a pressure holding time, to obtain a polymer sheet; andperforming a foaming process on the polymer sheet by using a foaming agent at a second predetermined temperature and a second predetermined pressure for a saturation time, to obtain polymer foam.2. The method of claim 1 , wherein the first determined temperature is lower than a melting point of the polymer body.3. The method claim 1 , wherein the first predetermined temperature is in a range from 100° C. to 160° C.4. The method of claim 1 , wherein the first predetermined pressure is in a range from 20 MPa to 420 MPa.5. The method of claim 1 , wherein the pressure holding time is in a range from 10 sec to 300 sec.6. The method of claim 1 , wherein the second predetermined temperature is in a range from 130° C. to 160° C.7. The method of claim 1 , wherein the second predetermined pressure is in a range from 11.7 MPa to 17.3 MPa.8. The method of claim 1 , wherein the saturation time is in a range from 10 min to 120 min.9. The method of claim 1 , wherein the polymer body is semi-crystalline thermoplastics or thermoplastic elastomers.10. The method of claim 1 , wherein the polymer body comprises at least one selected ...

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Номер записи: 52
02-02-2017 дата публикации

EXPANDED POLYLACTIC ACID RESIN BEADS AND MOLDED ARTICLE OF EXPANDED POLYLACTIC ACID RESIN BEADS

Номер: US20170029591A1
Автор: CHIBA Takuya, OIKAWA Masaharu
Принадлежит:

The present invention provides expanded polylactic acid resin beads, in which each bead is composed of a core layer that is in an expanded state and contains a crystalline polylactic acid resin, and a coating layer that coats the core layer and contains a mixed resin of an amorphous polylactic acid resin and a crystalline polyolefin resin, wherein the content of the crystalline polyolefin resin in the coating layer is 3% by weight or more and less than 50% by weight. The expanded polylactic acid resin beads can stably produce a molded article of expanded polylactic acid resin beads excellent in fusibility of the expanded polylactic acid resin beads therein and also excellent in solvent resistance. 1. Expanded polylactic acid resin beads , wherein:the expanded bead is composed of a core layer that is in an expanded state and contains a crystalline polylactic acid resin, and a coating layer that coats the core layer and contains a mixed resin of an amorphous polylactic acid resin and a crystalline polyolefin resin, andthe content of the crystalline polyolefin resin in the coating layer is 3% by weight or more and less than 50% by weight.2. The expanded polylactic acid resin beads according to claim 1 , wherein the melting point of the crystalline polyolefin resin is lower than the melting point of the crystalline polylactic acid resin by 20° C. or more.3. A molded article of expanded polylactic acid resin beads claim 1 , which is produced by molding the expanded polylactic acid resin beads according to in a mold cavity.4. The molded article of expanded polylactic acid resin beads according to claim 3 , wherein the bulk density of the molded article of expanded polylactic acid resin beads is 15 to 300 kg/m claim 3 , and the ratio of a bending strength (kPa) of the molded article of expanded polylactic acid resin beads to the bulk density (kg/m) thereof (bending strength/bulk density) is 13 or more (kPa·m/kg).5. The molded article of expanded polylactic acid resin beads ...

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Номер записи: 53
02-02-2017 дата публикации

Soft actuator and methods of fabrication

Номер: US20170029592A1
Автор: Benjamin C. MacMurray, Huichan ZHAO, Robert F. Shepherd
Принадлежит: CORNELL UNIVERSITY

Soft actuators are fabricated from materials that enable the actuators to be constructed with an open-celled architecture such as an interconnected network of pore elements. The movement of a soft actuator is controlled by manipulating the open-celled architecture, for example inflating/deflating select portions of the open-celled architecture using a substance such as compressed fluid.

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Номер записи: 54
31-01-2019 дата публикации

SHOE SOLES, COMPOSITIONS, AND METHODS OF MAKING THE SAME

Номер: US20190029361A1
Автор: Gopalan Krishnamachari, Herd-Smith Roland, Ji Gending, Lenhart Robert J.
Принадлежит: COOPER-STANDARD AUTOMOTIVE INC.

A shoe sole composition and method for making a shoe sole are provided. The shoe sole includes a composition comprising a foamed silane-crosslinked polyolefin elastomer having a density less than 0.50 g/cm. The shoe sole exhibits a compression set of from about 5.0% to about 20.0%, as measured according to ASTM D 395 (6 hrs @ 50° C.). The foamed silane-crosslinked polyolefin elastomer can be produced from a blend including a first polyolefin having a density less than 0.86 g/cm, a second polyolefin, having a crystallinity less than 40%, a silane crosslinker, a grafting initiator, a condensation catalyst, and a foaming agent. 1. A shoe midsole comprising:{'sup': '3', 'claim-text': [{'sup': '3', 'a first polyolefin having a density less than 0.86 g/cm,'}, 'a second polyolefin having a crystallinity less than 40%,', 'a silane crosslinker,', 'a grafting initiator,', 'a condensation catalyst, and', 'a foaming agent,, 'a foamed silane-crosslinked polyolefin elastomer having a density less than 0.50 g/cm, the foamed silane-crosslinked polyolefin elastomer comprisingwherein the shoe midsole exhibits a compression set of from about 1.0% to about 50.0%, as measured according to ASTM D 395 (48 hrs @ 50° C.).2. The shoe midsole of claim 1 , wherein the first polyolefin is an ethylene/α-olefin copolymer from about 60 wt % to about 97 wt %.3. The shoe midsole of claim 1 , wherein the second polyolefin is a polypropylene homopolymer and/or a poly(ethylene-co-propylene) claim 1 , the second polyolefin from about 10 wt % to about 35 wt %.4. The shoe midsole of claim 1 , wherein the silane crosslinker comprises a vinyltrialkoxy silane from about 1 wt % to about 4 wt %.5. The shoe midsole of claim 1 , wherein the grafting initiator comprises one or more halogen molecules claim 1 , azo compounds claim 1 , carboxylic peroxyacids claim 1 , peroxyesters claim 1 , peroxyketals claim 1 , and peroxides claim 1 , the grafting initiator from greater than 0.15 wt % to about 2 wt %.6. The shoe ...

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Номер записи: 55
31-01-2019 дата публикации

PROCESS FOR PRODUCING EXPANDED POLYETHYLENE-BASED RESIN BEADS AND PROCESS FOR PRODUCING POLYETHYLENE-BASED MOLDED RESIN OBJECT BY IN-MOLD FOAMING

Номер: US20190030768A1
Автор: Hayase Yuki, Yoshida Toru
Принадлежит: KANEKA CORPORATION

A method for producing polyethylene-based resin foamed particles includes a first-step foaming process. The first-step foaming process includes: producing an aqueous dispersion by dispersing polyethylene-based resin particles in an aqueous dispersing medium in a sealed vessel, adding a carbon dioxide-containing foaming agent to the aqueous dispersion in the sealed vessel, heating and pressurizing the aqueous dispersion in the sealed vessel, and releasing the aqueous dispersion in the sealed vessel to a pressure region where a pressure is lower than an internal pressure of the sealed vessel. The foaming ratio in the first-step foaming process is 10 to 18 times. The polyethylene-based resin particles have a polyethylene-based base resin and a melting point of 105 to 125° C., a tan δ of 0.3 to 0.7, and a complex viscosity of 5000 to 20000 Pa·s. 1. A method for producing polyethylene-based resin foamed particles comprising a first-step foaming process that comprises:producing an aqueous dispersion by dispersing polyethylene-based resin particles in an aqueous dispersing medium in a sealed vessel;adding a foaming agent containing carbon dioxide to the aqueous dispersion in the sealed vessel;heating and pressurizing the aqueous dispersion in the sealed vessel; andreleasing the aqueous dispersion in the sealed vessel to a pressure region where a pressure is lower than an internal pressure of the sealed vessel,wherein a foaming ratio in the first-step foaming process is 10 to 18 times,wherein the polyethylene-based resin particles comprise a base resin that is a polyethylene-based resin,wherein the polyethylene-based resin particles have a melting point of 105 to 125° C., a tan δ of 0.3 to 0.7, and a complex viscosity of 5000 to 20000 Pa·s, andwherein the tan δ and the complex viscosity are determined by a viscoelasticity measurement at a temperature of 130° C. and a frequency of 1.67 Hz.2. The method according to claim 1 , wherein the tan δ is 0.4 to 0.6 and the complex ...

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Номер записи: 56
17-02-2022 дата публикации

POLYMER FOAMS INCLUDING FUNCTIONALIZED CARBON NANOTUBESG

Номер: US20220049064A1
Автор: HAGENAARS Arno, HOEKS THEO, Mercx Frans, VAN DE GRAMPEL Robert, VASTENHOUT Sidney
Принадлежит:

This disclosure describes micro, sub-micro, and nano-cellular polymer foams formed from a polymer composition that includes a polymer and functionalized carbon nanotubes, and systems and methods of formation thereof. The microcellular polymer foam has an average pore size within a range of 1 micron to 100 microns, the sub-microcellular polymer foam has an average pore size within a range of 0.5 microns to 1 micron, and the nano-cellular polymer foam has an average pore size within a range of 10 nanometers to 500 nanometers. In other aspects, this disclosure describes micro, sub-micro, and nano-cellular polymer foams formed from a polymer composition that includes a polymer and non-functionalized carbon nanotubes. 1. A polymer foam comprising:one or more polymers; andfunctionalized carbon nanotubes, the functionalized carbon nanotubes having multiple walls and one or more oxygen based functional groups,wherein the polymer foam has an average pore size within a range of 10 nanometers to 100 microns.2. The polymer foam of claim 1 , wherein the polymer foam has an average pore size of less than or equal to 100 nanometers.3. The polymer foam of claim 1 , wherein the polymer foam has a cell density of greater than or equal to 10E12 cells per cubic centimeter.4. The polymer foam of claim 1 , wherein the polymer foam has a foam density within a range of 1 percent to 50 percent of a bulk density of a material comprising the polymer foam.5. The polymer foam of claim 1 , wherein the polymer foam comprises a thermal conductivity of 0.001 to 0.01 Watts per meter-Kelvin.6. The polymer foam of claim 1 , wherein the functionalized carbon nanotubes are dispersed in the one or more polymers claim 1 , the polymer foam claim 1 , or both.7. The polymer foam of claim 1 , wherein the functionalized carbon nanotubes are aligned with each other in the one or more polymers claim 1 , the polymer foam claim 1 , or both.8. The polymer foam of claim 1 , wherein cells of the polymer foam comprise ...

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Номер записи: 57
17-02-2022 дата публикации

Foam Bead and Sintered Foam Structure

Номер: US20220049065A1
Автор: Van Dun Jozef J I, Yang Yunfeng, Yu Haiyang
Принадлежит:

The present disclosure provides a foam bead. The foam bead contains at least one of the following components: (A) a block composite; and/or (B) a crystalline block composite. The present disclosure also provides a sintered foam structure formed from a composition comprising at least one of the following components: (A) a block composite; and/or (B) a crystalline block composite. 1. A foam bead comprising at least one of the following components:(A) a block composite; and/or(B) a crystalline block composite.2. The foam bead of comprising (A) the block composite.3. The foam bead of comprising (B) the crystalline block composite.4. The foam bead of claim 1 , wherein the foam bead has a weight ratio of (A) the block composite and (B) the crystalline block composite of from 0.25:1.0 to 4.0:1.0.5. The foam bead of claim 1 , wherein the foam bead has two melting peaks.6. The foam bead of claim 1 , wherein the foam bead has a first melting peak (Tm1) and a second melting peak (Tm2) claim 1 , and the difference between Tm1and Tm2is greater than claim 1 , or equal to claim 1 , 20° C.7. A sintered foam structure formed from a composition comprising at least one of the following components:(A) a block composite; and/or(B) a crystalline block composite.8. The sintered foam structure of claim 7 , wherein the sintered foam structure has a foam density of less than 0.20 g/cc; and a linear shrinkage of less than claim 7 , or equal to claim 7 , 1.0%.9. The sintered foam structure of comprising (A) the block composite.10. The sintered foam structure of claim 7 , wherein the sintered foam structure has a Type C Tear from 4.5 N/mm to 15 N/mm; and an average stress at break greater than claim 7 , or equal to claim 7 , 0.50 MPa. The present disclosure relates to polyolefin foams, and further polypropylene-based polymer foams. Polyolefin foams are conventionally utilized in footwear components, such as midsole applications. Crosslinked ethylene-based polymers including ethylene vinyl ...

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Номер записи: 58
31-01-2019 дата публикации

Injection-molded foam of resin composition with satisfactory surface property and capable of weight reduction and rib design

Номер: US20190031851A1
Автор: Soichi Uchida
Принадлежит: Kaneka Corp

A foam injection molded article includes a resin composition, wherein the resin composition includes: (A) a polycarbonate resin, (B) a thermoplastic polyester resin, (C) a polyester-polyether copolymer, and (D) a foaming agent. The article has an arithmetic average roughness (Ra) that is greater than 0.1 μm and less than 9 μm, a maximum height (Ry) that is greater than 1 μm and less than 90 μm; and a 10-point average roughness (Rz) that is greater than 1 μm and less than 70 μm.

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Номер записи: 59
31-01-2019 дата публикации

THERMOPLASTIC FORMULATION WITH IMPROVED ADHESION

Номер: US20190031853A1
Автор: CIL Engin, FRICK Karsten, KRÜGER Christian
Принадлежит: SIKA TECHNOLOGY AG

A thermally expandable composition, including at least one polymer P, cross-linkable by peroxide, at least one peroxide, preferably at least one acrylate, at least one blowing agent B, preferably at least one activator for the blowing agent, and at least one epoxide group terminated polymer of the formula (I), 2. Thermally expandable composition according to claim 1 , wherein m has a value of 2.3. Thermally expandable composition according to claim 1 , wherein the blowing agent B comprises azodicarbonamide and/or 4 claim 1 ,4′-oxybis(benzenesulphonyl hydrazide).4. Thermally expandable composition according to claim 1 , wherein the acrylate A comprises dipentaerythritol pentaacrylate and/or trimethylolpropane trimethacrylate.5. Thermally expandable composition according to claim 1 , wherein the polyurethane polymer PU is a reaction product of a polyisocyanate and a polyether polyol and optionally a hydroxyl-functional polybutadiene polyol.6. Thermally expandable composition according to claim 1 , wherein the peroxide comprises di-(2-tert.-butyl-peroxyisopropyl)-benzene.7. Thermally expandable composition according to claim 1 , wherein the polymer P comprises ethylene vinyl acetate and/or ethylene butyl acrylate.81212. Thermally expandable composition according to claim 1 , wherein the polymer P comprises or essentially consists of at least two polymers P and P claim 1 , wherein P exhibits a melt flow index (MFI) of between 100 and 200 g/10 min claim 1 , and P exhibits a melt flow index of between 0.1 and 60 g/10 min claim 1 , wherein MFI is determined by ASTM D1238.10. Baffle and/or reinforcement element for hollow structures claim 1 , wherein the element comprises or essentially consists of a thermally expandable composition according to .11. Baffle and/or reinforcement element of claim 10 , wherein that the element comprises a carrier on which the thermally expandable composition is deposited or attached claim 10 , wherein the carrier is made of a thermoplastic ...

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Номер записи: 60
31-01-2019 дата публикации

RUBBER, SEAL COMPONENT, AND HOSE

Номер: US20190031871A1
Автор: AKAHORI Naoyuki, Iwase Naoki, KURIMOTO Hidekazu
Принадлежит:

A rubber includes 5 parts by mass to 45 parts by mass of an uncross-linked EPM relative to 100 parts by mass of a cross-linked rubber polymer (other than EPM), and an oil in an amount equal to or more than the amount of the EPM. The rubber is foamed and has a specific gravity of more than 0.3 and 0.8 or less. A weather strip and a hose are formed of the rubber. 1. A rubber comprising:100 parts by mass of a cross-linked rubber polymer (other than EPM);5 parts by mass to 45 parts by mass of an uncross-linked EPM; andan oil in an amount equal to or more than the amount of the EPM,wherein the rubber is foamed and has a specific gravity of more than 0.3 and 0.8 or less.2. The rubber according to claim 1 , wherein the rubber polymer is EPDM.3. The rubber according to claim 1 , wherein the oil is a hydrocarbon-based oil having a weight average molecular weight of 1 claim 1 ,500 or less.4. The rubber according to claim 1 , wherein a mass ratio of the oil to the EPM is 1 to 10.5. The rubber according to claim 1 , further comprising stearic acid in an amount of 0.5 parts by mass to 8 parts by mass relative to the 100 parts by mass of the rubber polymer.6. The rubber according to claim 1 , further comprising stearic acid in an amount of 2 parts by mass to 5 parts by mass relative to the 100 parts by mass of the rubber polymer.7. The rubber according to claim 1 , further comprising stearic acid in an amount of 0.5 parts by mass to 5 parts by mass claim 1 , and a fatty acid ester-based processing aid in an amount of 0.5 parts by mass to 20 parts by mass relative to the 100 parts by mass of the rubber polymer.8. A seal component formed of the rubber according to .9. A hose formed of the rubber according to . The present invention relates to a rubber, and a seal component and a hose that are formed by using the same.As a method for enhancing the sound insulation of a seal component formed of a rubber in vehicles, buildings, and the like, the following method is known.A method for ...

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Номер записи: 61
30-01-2020 дата публикации

Expanded Particle Molded Article

Номер: US20200032024A1
Автор: OIKAWA Masaharu, TAKAGI Shota
Принадлежит: JSP CORPORATION

The present invention is concerned with an expanded beads molded article of expanded beads comprising a crosslinked multi-block copolymer containing a polyethylene block and an ethylene/α-olefin copolymer block, wherein a density is 40 to 150 g/L; a gel fraction by a hot xylene extraction method is 30 to 70% by weight; a tensile elongation is 120% or more; a bead weight of the expanded beads is 0.8 to 8 mg; and the number of expanded beads per unit area on a surface of the expanded beads molded article is 5 to 30 per cm, and is able to provide an expanded beads molded article which is light in weight and favorable in surface properties, fusion bondability, and durability. 1. An expanded beads molded article of expanded beads comprising a crosslinked multi-block copolymer containing a polyethylene block and an ethylene/α-olefin copolymer block , wherein a density of the expanded beads molded article is from 40 to 150 g/L; a gel fraction of the expanded beads molded article by a hot xylene extraction method is from 30 to 70% by weight; a tensile elongation of the expanded beads molded article is 120% or more; a bead weight of the expanded beads is from 0.8 to 8 mg; and the number of expanded beads per unit area on a surface of the expanded beads molded article is from 5 to 30 per cm.2. The expanded beads molded article according to claim 1 , wherein an average cell diameter of the expanded beads molded article is from 50 to 200 μm.3. The expanded beads molded article according to claim 1 , wherein the bead weight of the expanded beads is from 1 to 4 mg.4. The expanded beads molded article according to claim 1 , wherein a type C durometer hardness of a molded article surface of the expanded beads molded article is from 15 to 50.5. The expanded beads molded article according to claim 1 , wherein the expanded beads molded article has a thin-walled part having a minimum thickness of 5 mm or less.6. The expanded beads molded article according to claim 1 , wherein the multi ...

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Номер записи: 62
30-01-2020 дата публикации

FOAMING PARTICLE MOLDED BODY

Номер: US20200032025A1
Автор: HAYASHI Tatsuya, KOSHITA Nobumasa, OIKAWA Masaharu
Принадлежит:

The present invention relates to an expanded beads molded article, which is obtained through in-mold molding of expanded thermoplastic elastomer beads, has voids, and has a density of 150 to 300 kg/mand a voidage of 10 to 70% by volume. 1. An expanded beads molded article , which is obtained through in-mold molding of expanded thermoplastic elastomer beads , comprises voids among expanded beads , and has a density of 150 to 300 kg/mand a voidage of 10 to 70% by volume.2. The expanded beads molded article according to claim 1 , wherein in the measurement of a compression set at 23° C. on a basis of JIS K6767:1999 claim 1 , the compression set of the expanded beads molded article 30 minutes after completion of compression is 7% or less.3. The expanded beads molded article according to claim 1 , wherein a tensile strength at break of the expanded beads molded article is 0.3 MPa or more.4. The expanded beads molded article according to claim 1 , wherein a modulus of repulsion elasticity of the expanded beads molded article is 50% or more.5. The expanded beads molded article according to claim 1 , wherein a modulus of repulsion elasticity of the thermoplastic elastomer constituting the expanded beads molded article is from 30 to 50%.6. The expanded beads molded article according to claim 1 , wherein the thermoplastic elastomer constituting the expanded beads molded article is a thermoplastic urethane elastomer having a type A durometer hardness of 95 or less. The present invention relates to an expanded thermoplastic elastomer beads molded article.The thermoplastic elastomer is hereinafter occasionally abbreviated as “TPE”. In addition, the expanded thermoplastic elastomer beads molded article is occasionally referred to simply as “expanded beads molded article”.A thermoplastic elastomer (TPE), such as a thermoplastic urethane elastomer (TPU), exhibits characteristics close to those of vulcanized rubbers, is excellent in flexibility and repulsion elasticity, and is used ...

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Номер записи: 63
09-02-2017 дата публикации

Decorative foam and method

Номер: US20170036377A1
Автор: Charles Edwards, Hossein BAGHDADI, Richard L. Watkins, Yihua Chang
Принадлежит: Nike Inc

Decorative foamed articles are prepared from foamed pellets, beads, particles, or other articles of a thermoplastic elastomer infused with a supercritical fluid in a pressurized container, then rapidly depressurized and heated either by immersion in a heated fluid that can rapidly heat the article or with infrared or microwave radiation to heat and foam the pellets, beads, particles, or other articles that are then molded into the articles. The pellets are dyed with a nonionic or anionic dye one of: (1) before being infused with the supercritical fluid, (2) during being infused with the supercritical fluid by a nonionic or anionic dye dissolved or dispersed in the supercritical fluid, which optionally comprises a polar liquid, (3) during immersion in the heated fluid, where the heated fluid contains the dye, or (4) after being foamed.

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Номер записи: 64
11-02-2016 дата публикации

A METHOD FOR THE PREPARATION OF PLA BEAD FOAMS

Номер: US20160039990A1
Автор: NOFAR Mohammadreza, PARK Chul B.
Принадлежит:

The present invention relates to a method for the preparation of PLA beads, more particularly expanded PLA bead foams. In addition, the present invention relates to a method for the preparation of moldings by sintering PLA beads. The method comprises the following steps: A) providing unfoamed PLA pellets, B) heating said unfoamed PLA pellets to an annealing temperature and saturating with a blowing agent, C) maintaining said PLA pellets on the annealing temperature and saturating with said blowing agent, D) depressurizing and cooling the saturated PLA pellets of step C) to room temperature to form expanded PLA bead foams. 1. A method for preparation of expanded polylactide bead foams comprising the following steps:A) providing unfoamed polylactide pellets,B) heating said unfoamed polylactide pellets to an annealing temperature and saturating with a blowing agent,C) maintaining said polylactide pellets on the annealing temperature and saturating with said blowing agent,D) depressurizing and cooling the saturated polylactide pellets of step C) to room temperature to form expanded polylactide bead foams.2. The method according to claim 1 , in which the annealing temperature is in the range of 60° C.-180° C.3. The method according to claim 1 , in which the annealing time during step C) is in the range of 10 min-300 min.4. The method according to claim 1 , in which the polylactide pellets in step A) are chosen from the group of linear polylactide claim 1 , branched polylactide and polylactide copolymers with D-lactide contents claim 1 , or combinations thereof.5. method according to claim 4 , in which step B) takes place in a suspension medium.6. A method according to claim 4 , in which the polylactide pellets in step A) are mixed with polyolefins and/or polyesters.7. An expanded polylactide bead foam having a double crystal melting peak claim 4 , in which the distance between the two peaks is in the range of 5° C.-25° C.8. (canceled)9. The polylactide bead according to ...

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Номер записи: 65
09-02-2017 дата публикации

FOAMABLE MASTERBATCH AND POLYOLEFIN RESIN COMPOSITION WITH EXCELLENT EXPANDABILITY AND DIRECT METALLIZING PROPERTY

Номер: US20170037214A1
Автор: JEONG Kie Youn, KIM Dae Sik, Kim Hak Soo, LEE Hyung Shin, NAM Byung Kook, NOH Jung Gyun
Принадлежит:

The present disclosure provides a masterbatch prepared by melting and extruding a mixture including a polyolefin resin, wherein the mixture includes 10 to 89% by weight of a polyolefin resin, 5 to 30% by weight of a chemical blowing agent, 5 to 30% by weight of thermally expandable microcapsule, and 1 to 30% by weight of an inorganic filler. In addition, the present disclosure provides a polyolefin resin composition with excellent expandability and direct metallizing property, which includes the foamable masterbatch. A molded article obtained by foam injection molding of the polyolefin resin composition according to one form of the present disclosure can be useful in satisfying uniform distribution and mechanical properties of foamed cells so that the molded article can be widely applied to parts for automobile interior/exterior materials, and also improving fuel efficiency of automobiles by achieving lightweight parts. 1. A foamable masterbatch prepared by melting and extruding a mixture comprising a polyolefin resin ,wherein the mixture comprises:(A) 10 to 89% by weight of a polyolefin resin;(B) 5 to 30% by weight of a chemical blowing agent;(C) 5 to 30% by weight of thermally expandable microcapsule; and(D) 1 to 30% by weight of an inorganic filler.2. The foamable masterbatch of claim 1 , wherein the polyolefin resin (A) comprises at least one selected from the group consisting of a random copolymer formed by polymerization of a comonomer selected from the group consisting of homo-polypropylene (Homo-PP) claim 1 , propylene claim 1 , ethylene claim 1 , butylene claim 1 , and octene claim 1 , a block copolymer formed by blending an ethylene-propylene rubber with polypropylene claim 1 , and a copolymer of polyethylene claim 1 , ethylene vinyl acetate claim 1 , and α-olefin.3. The foamable masterbatch of claim 1 , wherein the chemical blowing agent (B) comprises at least one selected from the group consisting of azodicarbon amide claim 1 , p claim 1 ,p′-oxybis( ...

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Номер записи: 66
08-02-2018 дата публикации

Esterified acids for use in polymeric materials

Номер: US20180037695A1
Автор: Kevin Hicks, Michael Czaplicki
Принадлежит: Zephyros Inc

The present teachings contemplate a method that includes a step of providing a first amount of esterified reaction product of an acid and an epoxy-based material. The esterified reaction product may be further reacted an epoxy resin to form a polymeric epoxy. The resulting material may have a generally linear backbone, foaming and curing capability and flame retardant properties,

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Номер записи: 67
08-02-2018 дата публикации

PUMPABLE AND THERMALLY EXPANDABLE FILLER COMPOSITIONS

Номер: US20180037708A1
Автор: Davis Steve, Lin Geng, PROKO Blanka
Принадлежит: SIKA TECHNOLOGY AG

Pumpable thermally foaming filler compositions based on combinations of a liquid epoxy resin and a polyvinyl chloride resin and/or an acrylic resin powder. The pumpable filler materials provide the advantage that they can be applied as needed using conventional injection equipment and can be expanded to provide foam with good physical strength, high expansion and excellent adhesion on oiled metal substrates. Methods for filling closed spaces with the pumpable thermally foaming filler composition as well as vehicle parts are obtainable with the indicated methods. 1. A pumpable thermally foaming filler composition comprising:a liquid epoxy resin,a polyvinylchloride resin and/or acrylic resin powder, anda foaming agent.2. The pumpable thermally foaming filler composition of further comprising a synthetic rubber.3. The pumpable thermally foaming filler composition of further comprising one or more plasticizers.4. The pumpable thermally foaming filler composition of further comprising a curing agent for the liquid epoxy resin.5. The pumpable thermally foaming filler composition of further comprising one or more fillers.6. The pumpable thermally foaming filler composition of comprising10 to 20 wt.-% of a liquid epoxy resin, 10 to 20 wt.-% of polyvinylchloride resins and/or acrylic resin powders, 5 to 10 wt.-% of a synthetic rubber, 3 to 6 wt.-% of a foaming agent, 10 to 20 wt.-% of plasticizers, less than 1 wt.-% of a curing agent for the liquid epoxy resin and 25 to 35 wt.-% of fillers.7. The foamed filler obtainable by heating the pumpable thermally foaming filler composition of to a temperature above the activation temperature of the foaming agent.8. The filler of having an expansion of more than 300% of its unfoamed volume.9. A method comprising filling a closed space with the pumpable thermally foaming filler composition according to .10. A method for filling a closed space comprising the steps of{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'inserting a pumpable ...

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Номер записи: 68
24-02-2022 дата публикации

Polymeric Membrane Useful As A Commercial Roofing Membrane

Номер: US20220055263A1
Автор: Apeldorn Thomas, Clear Susannah C., Edwards John S., Fansler Duane D., Fishman Joshua M., Gilbert Thomas J., Hays David S., Kalish Jeffrey P., Kempf Michael, Meree Caitlin E., Schultz Anthony F.
Принадлежит:

The present disclosure provides a polymeric membrane. The polymeric membrane includes a first thermoplastic elastomer layer that comprises a styrenic thermoplastic. The thermoplastic elastomer layer has a foam structure. The polymeric membrane can further include an optional second thermoplastic elastomer layer in contact with the first polyolefin layer. 1. A polymeric membrane comprising:a first thermoplastic elastomer layer, comprising a styrenic thermoplastic, wherein the first thermoplastic elastomer layer has a foam structure.2. The polymeric membrane of wherein the styrenic thermoplastic comprises ethylene and butadiene blocks.3. The polymeric membrane of wherein the styrenic thermoplastic is a styrene-ethylene-butadiene-styrene thermoplastic.4. The polymeric membrane of claim 1 , further comprising a second thermoplastic elastomer layer in contact with the first thermoplastic elastomer layer.5. The polymeric membrane of claim 4 , wherein at least one of the first and the second thermoplastic elastomer independently comprises a thermoplastic polymer having at least one glass transition temperature in a range of from about 30° C. to about 150° C.6. The polymeric membrane of claim 4 , wherein the second thermoplastic elastomer layers independently comprises an acrylate claim 4 , a methacrylate claim 4 , a poly(methyl methacrylate) claim 4 , a siloxane claim 4 , a styrene-isoprene block copolymer claim 4 , a styrene ethylene butylene styrene polymer claim 4 , a hydrogenated styrene ethylene butylene styrene polymer claim 4 , a polyamide-imide claim 4 , a polyethersulphone claim 4 , a polyetherimide claim 4 , a polyarylate claim 4 , a polysulphone claim 4 , a polyvinylchloride claim 4 , an acrylonitrile butadiene styrene claim 4 , a polystyrene claim 4 , a polyetherimide claim 4 , a metallocene-catalyzed polyethylene claim 4 , a polyethylene claim 4 , a polyurethane claim 4 , a fluoroelastomer claim 4 , a polyolefin claim 4 , an EPDM claim 4 , a rubber claim 4 , ...

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Номер записи: 69
24-02-2022 дата публикации

Polymeric Membrane Useful As A Commercial Roofing Membrane

Номер: US20220055264A1
Автор: Clear Susannah C., Edwards John S., Fansler Duane D., Fishman Joshua M., Gilbert Thomas J., Hays David S., Kalish Jeffrey P., Meree Caitlin E., Schultz Anthony F.
Принадлежит:

The present disclosure provides a polymeric membrane. The polymeric membrane includes a first thermoplastic elastomer layer. The thermoplastic elastomer is a styrenic thermoplastic. The polymeric membrane can further include an optional second thermoplastic elastomer layer in contact with the first polyolefin layer. 1. A polymeric membrane comprising:a first thermoplastic elastomer layer consisting essentially a comprising a styrenic thermoplastic.2. The polymeric membrane of wherein the styrenic thermoplastic comprises ethylene and butadiene blocks.3. The polymeric membrane of wherein the styrenic thermoplastic is a styrene-ethylene-butadiene-styrene thermoplastic.4. The polymeric membrane of claim 1 , further comprising a second thermoplastic elastomer layer in contact with the first thermoplastic elastomer layer.5. The polymeric membrane of claim 4 , wherein at least one of the first and the second thermoplastic elastomer independently comprises a thermoplastic polymer having at least one glass transition temperature in a range of from about 30° C. to about 150° C.6. The polymeric membrane of claim 4 , wherein the second thermoplastic elastomer layers independently comprises an acrylate claim 4 , a methacrylate claim 4 , a poly(methyl methacrylate) claim 4 , a siloxane claim 4 , a styrene-isoprene block copolymer claim 4 , a styrene ethylene butylene styrene polymer claim 4 , a hydrogenated styrene ethylene butylene styrene polymer claim 4 , a polyamide-imide claim 4 , a polyethersulphone claim 4 , a polyetherimide claim 4 , a polyarylate claim 4 , a polysulphone claim 4 , a polyvinylchloride claim 4 , an acrylonitrile butadiene styrene claim 4 , a polystyrene claim 4 , a polyetherimide claim 4 , a metallocene-catalyzed polyethylene claim 4 , a polyethylene claim 4 , a polyurethane claim 4 , a fluoroelastomer claim 4 , a polyolefin claim 4 , an EPDM claim 4 , a rubber claim 4 , copolymers thereof claim 4 , or mixtures thereof.7. The polymeric membrane of ...

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Номер записи: 70
24-02-2022 дата публикации

FOAMABLE RESIN COMPOSITION FOR CONTROLLING LOSS CIRCULATION

Номер: US20220056233A1
Автор: Al-Safran Ali, Alharthi Mohammad, AlYami Abdullah, Wagle Vikrant
Принадлежит:

This disclosure relates to a foamable resin composition containing a nitrogen gas-generating compound and methods of using the composition for loss circulation control. 1. A foamable resin composition , comprising:an epoxy resin;a nitrogen gas-generating compound;a surfactant; anda curing agent.2. The composition of claim 1 , wherein the epoxy resin comprises a bisphenol-A-based resin.3. The composition of claim 2 , wherein the epoxy resin is selected from a bisphenol-A-(epichlorohydrin) epoxy resin with oxirane mono [(C-Calkyloxy)methyl] derivatives and a bisphenol-A-(epichlorohydrin) epoxy resin with 1 claim 2 ,6-hexanediol diglycidyl ether.4. The composition of claim 1 , wherein the epoxy resin is about 75% to about 85% by weight of the composition.5. The composition of claim 1 , wherein the nitrogen gas-generating compound is an azo compound.6. The composition of claim 5 , wherein the azo compound is azodicarbonamide.7. The composition of claim 1 , wherein the nitrogen gas-generating compound is about 5% to about 15% by weight of the composition.8. The composition of claim 1 , wherein the surfactant is a hydroxysultaine.9. The composition of claim 8 , wherein the surfactant is cocamidopropyl hydroxysultaine.10. The composition of claim 1 , wherein the surfactant is about 1% to about 5% by weight of the composition.11. The composition of claim 1 , wherein the weight ratio of the nitrogen gas-generating compound to the surfactant is about 3:1.12. The composition of claim 1 , wherein the curing agent is a linear ethylene amine containing two primary nitrogens and one secondary nitrogen.13. The composition of claim 12 , wherein the curing agent is diethylenetriamine (DETA).14. The composition of claim 1 , wherein the curing agent is about 10% to about 13% by weight of the composition.15. A foamable resin composition claim 1 , comprising:a bisphenol-A-(epichlorohydrin) epoxy resin;azodicarbonamide in an amount of about 5% to about 10% by weight of the composition;a ...

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Номер записи: 71
24-02-2022 дата публикации

NEW FOAM WITH IMPROVED EXPANSION BEHAVIOUR WHEN USED IN THIN LAYERS

Номер: US20220056255A1
Автор: MARFINATI Artur, SILVERO Diogo Emilio
Принадлежит: SIKA TECHNOLOGY AG

A thermally expandable composition, including (a) at least one polymer P, cross-linkable by a free-radical initiator, and (b) at least one solid butyl rubber BRu, and (c) at least one free-radical initiator, and (d) at least one blowing agent, and (e) at least one tackifier TA, whereby the cured expanded composition has a volume increase compared to the uncured composition of less than 1300%. The thermally expandable composition is able to provide good expansion behaviour and good adhesion on metal surfaces and is especially suitable for baffle and/or reinforcement elements, e.g. in automotive manufacturing. 1. A thermally expandable composition , comprising(a) at least one polymer P, cross-linkable by a free-radical initiator, and(b) at least one solid butyl rubber BRu, whereby the composition comprises the solid butyl rubber with an amount of between 5 wt.-% and 16 wt.-%, based on the total weight of the composition, and(c) at least one free-radical initiator, and(d) at least one blowing agent, and(e) at least one tackifier TA,whereby the cured expanded composition has a volume increase compared to the uncured composition of less than 1300%, whereby the volume increase is determined using the DIN EN ISO 1183 method of density measurement (Archimedes principle).2. The thermally expandable composition of claim 1 , wherein the composition comprises the tackifier with an amount of between 12 wt.-% and 30 wt.-% claim 1 , based on the total weight of the composition.3. The thermally expandable composition of claim 1 , wherein the tackifier is a hydrocarbon resin.4. The thermally expandable composition of claim 1 , wherein the composition further comprises at least one process oil PO selected from the group consisting of aromatic oil claim 1 , naphthenic oil and poly(iso)butylene.5. The thermally expandable composition according to claim 4 , wherein the composition comprises the process oil PO with an amount of between 18 wt.-% and 35 wt.-% claim 4 , based on the total ...

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Номер записи: 72
24-02-2022 дата публикации

COMPOSITIONS AND METHODS OF MAKING THERMOSET FOAMS FOR SHOE SOLES

Номер: US20220056257A1
Автор: Gopalan Krishnamachari
Принадлежит: COOPER-STANDARD AUTOMOTIVE INC.

A footwear article is provided. The footwear article includes a shoe sole. The shoe sole includes a crosslinked foam polyolefin elastomer having a density less than 0.88 g/cm, the crosslinked foam polyolefin elastomer including: a silane-grafted polyolefin elastomer, a silane-grafted olefin block copolymer, a polyolefin elastomer (POE), an olefin block copolymer (OBC), or a combination thereof; an ethylene vinyl acetate (EVA) copolymer; a crosslinker; a condensation catalyst; and a foaming agent. The shoe sole exhibits a compression set of from about 1.0% to about 50.0%, as measured according to ASTM D 395 (48 hrs @ 50° C.). 1. A crosslinked foam polyolefin elastomer composition prepared by the process comprising:mixing or dry blending a silane-grafted polyolefin elastomer, a crosslinker, an ethylene vinyl acetate copolymer, and a blowing agent, to form a crosslinkable polyolefin blend, andmolding the crosslinkable polyolefin blend to form the crosslinked foam polyolefin elastomer composition.2. The crosslinked foam polyolefin elastomer composition of wherein the silane-grafted polyolefin elastomer was prepared using a silane crosslinker selected from vinyltrimethoxy silane (VTMO) claim 1 , vinyltriethoxy silane (VTEO) and a combination thereof.3. The crosslinked foam polyolefin elastomer composition of wherein the ethylene vinyl acetate copolymer also has silicone oil.4. The crosslinked foam polyolefin elastomer composition of wherein the molding is compression molding or injection molding.5. The crosslinked foam polyolefin elastomer composition of claim 1 , wherein the crosslinker comprises one or more halogen molecules claim 1 , azo compounds claim 1 , carboxylic peroxyacids claim 1 , peroxyesters claim 1 , peroxyketals claim 1 , and peroxides.6. The crosslinked foam polyolefin elastomer composition of claim 1 , wherein the expansion ratio of the composition is from about 136% to about 178% claim 1 , and wherein the specific gravity of the composition is from ...

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Номер записи: 73
12-02-2015 дата публикации

Polypropylene resin composition and expanded molding

Номер: US20150044405A1
Автор: Akihiro Suzuki, Hiroshi Tsuji, Isamu TERAYAMA, Koji Yamashita, Masaru Aoki, Motoki Kaneno, Shinichi Kitade
Принадлежит: Japan Polypropylene Corp

A polypropylene-based resin composition is provided that can provide a foam molding that exhibits an excellent closed cell characteristic and excellent extrusion characteristics, that is light weight and has a rigid feel, and that has an excellent recyclability. This polypropylene-based resin composition contains 100 weight % or is less than 100 weight % but at least 70 weight % of component (A) below and contains 0 weight % or is greater than 0 weight % but not more than 30 weight % of component (B) below, component (A): a propylene-based resin composition that comprises at least the following two components: a propylene-α-olefin copolymer (A1) satisfying conditions (A-1) to (A-3) and a propylene homopolymer (A2), (A1) and (A2) being obtained by polymerization by a multistage polymerization method, and this propylene-based resin composition having a content of (A1) of 1 to 20 weight % and a content of (A2) of 99 to 80 weight %, having a melt flow rate in the range from 5 to 20 g/10 minutes and exhibiting strain hardening in a measurement of extensional viscosity at a temperature of 180° C. and a strain rate of 10 s −1 , (A-1) an α-olefin content of 15 to 85 weight %, (A-2) an intrinsic viscosity q of 5 to 20 dL/g, (A-3) a Mw/Mn of 5 to 15; component (B): a propylene-based resin composition comprising at least the following two components: a propylene homopolymer or a propylene-α-olefin copolymer having a content of non-propylene α-olefin of less than 1 weight % (B1), which has an MFR of 10 to 1000 g/10 minutes, and a propylene-α-olefin copolymer (B2) that has a weight-average molecular weight of 500,000 to 10,000,000 and a content of non-propylene α-olefin of 1 to 15 weight %, (B1) and (B2) being obtained by polymerization by a multistage polymerization method, and this propylene-based resin composition having a content of (B1) of 50 to 90 weight % and a content of (B2) of 50 to 10 weight %, and satisfying prescribed conditions (B-1) to (B-3).

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Номер записи: 74
07-02-2019 дата публикации

Sponge Roller and Image-Forming Apparatus

Номер: US20190040222A1
Автор: Murayama Sadao
Принадлежит:

The present invention provides a sponge roller comprising a shaft body and an elastic layer formed on an outer peripheral surface of the shaft body, wherein the elastic layer is formed of a millable silicone rubber, unexpanded microballoon cells and chemical blowing agent cells, and an image forming apparatus comprising the sponge roller. The sponge roller has high durability, excellent surface smoothness and small permanent compression set. 1. A sponge roller comprising a shaft body and an elastic layer formed on an outer peripheral surface of the shaft body ,wherein the elastic layer is formed of a millable silicone rubber, unexpanded microballoon cells and chemical blowing agent cells.2. The sponge roller according to claim 1 , comprising a shaft body and an elastic layer formed on an outer peripheral surface of the shaft body claim 1 ,wherein a cell area ratio of the unexpanded microballoon cells and the chemical blowing agent cells on a cross section of the elastic layer is 95:5 to 50:50.3. The sponge roller according to claim 1 , wherein a specific gravity of the elastic layer is 0.9 to 0.3.4. The sponge roller according to claim 1 , wherein the elastic layer has composite cells formed of the unexpanded microballoon cells having an average cell diameter of 150 μm or less and the chemical blowing agent cells having an average cell diameter of 300 μm or less.5. The sponge roller according to claim 1 , wherein 25% permanent compression set of the elastic layer is 15% or less claim 1 , and a hardness decrease in 25% compression durability test of the elastic layer is 15% or less.6. An image forming apparatus comprising the sponge roller according to . The present invention relates to a sponge roller and an image forming apparatus. More particularly, the present invention relates to a sponge roller having high durability, excellent surface smoothness and small permanent compression set, and an image forming apparatus comprising the sponge roller.A rubber sponge ...

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Номер записи: 75
12-02-2015 дата публикации

Method for manufacturing foam-molded article, and foam-molded article

Номер: US20150045468A1
Автор: Masaaki Onodera
Принадлежит: Kyoraku Co Ltd

A foam-molded article has high weldability to a polypropylene-based resin molded article, a high expansion ratio, and a predetermined level of impact resistance despite using inexpensive polyethylene-based resin. The foam-molded article includes a foamed and molded base material resin in which a first polyethylene-based resin, a second polyethylene-based resin, and a polypropylene-based resin are mixed. The first polyethylene-based resin has a long-chain branched structure and a density of 0.920 g/cm 3 or more. The second polyethylene-based resin is manufactured by a low pressure slurry method, and has a long-chain branched structure and a density of 0.920 g/cm 3 or less. The second polyethylene-based resin has a melt tensile force of 70 mN or more at 160° C. The polypropylene-based resin has a compounding ratio of 20% or more by weight of the base material resin.

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Номер записи: 76
06-02-2020 дата публикации

THERMOPLASTIC POLYMERS

Номер: US20200040154A1
Автор: Klaas Bjorn, Moloney Steven John, Overend Andrew, Sjoblom Bo
Принадлежит:

Thermoplastic polymers, for example fluoropolymers, are foamed by use of a solid formulation comprising thermoplastic polymer and manganese oxalate. 114-. (canceled)15. A method of preparing a foamed thermoplastic polymer which comprises subjecting a mixture comprising an oxalate compound and a thermoplastic polymer to a temperature of greater than 300° C.16. (canceled)17. A method according to claim 15 , wherein said thermoplastic polymer to be foamed is a high performance thermoplastic polymer which:(i) has a melting point of at least 250° C.; and/or(ii) has a continuous use temperature of at least 160° C.; and/or(iii) has a melt flow rate (MFR at 372° C./5.0 kg) assessed using IS012086 in the range 1.2 to 36 g/10 min; and/or(iv) has a tensile strength, measured in accordance with ASTM D638, of at least 1500 psi; and/or(v) has a flexural modulus, in accordance with ASTM D790 at +23° C., of at least 70,000 psi; and/or(vi) has a tensile modulus, in accordance with ASTM D638, of at least 30,000.18. A method according to claim 15 , wherein said thermoplastic polymer to be foamed is selected from fluoropolymers claim 15 , high-performance polyamides (HPPAs) claim 15 , liquid crystal polymers claim 15 , polyamideimides (PAIs) claim 15 , polybenzimidazoles (PBIs) claim 15 , polybutylene terephthalates (PBTs) claim 15 , polyetherimides (PHs) claim 15 , polyimides (Pis) claim 15 , polyketones (PAEKs) claim 15 , polyphenylene sulfides (PPS) claim 15 , polysulfone derivatives claim 15 , polycyclohexane dimethyl-terephthalates (PCTs) claim 15 , syndiotactic polystyrene claim 15 , PET and polycarbonate.19. A method according to claim 15 , wherein said thermoplastic polymer to be foamed is a fluoropolymer.20. A method according to claim 15 , wherein said thermoplastic polymer to be foamed is FEP.21. A method according to claim 15 , wherein the ratio of the total weight of thermoplastic polymers divided by the total weight of oxalate compounds in said mixture is less than 1000 ...

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Номер записи: 77
06-02-2020 дата публикации

MANUFACTURING PROCESS AND COMPOSITION FOR FOAMED PVC-P ROCK SHIELDS

Номер: US20200040172A1
Автор: Ackermann Herbert, BRUNNER Andreas, Hoefflin Frank
Принадлежит: SIKA TECHNOLOGY AG

A plasticized PVC formulation for foam extrusion including polyvinyl chloride, at least one plasticizer, at least one nucleating agent and a chemical blowing agent, wherein the plasticized PVC formulation is a dry blend containing 0.5 to 5% by weight of one or more nucleating agents and 0.1 to 3% by weight of the chemical blowing agent, wherein the blowing agent is sodium bicarbonate and the nucleating agent is talcum, and a foam extrusion method using said formulation. The extruded plasticized PVC foam is particularly suitable for rock shield pads used for pipeline protection. The foams are lightweight and require less consumption of materials with comparable properties to corresponding solid articles. 1. A non-woven mat that is suitable for use as a rockshield pad to protect a pipeline , the nonwoven mat being formed from a plurality of foamed PVC strands that are fused together , wherein each of the plurality of strands consists of a plasticized PVC formulation.2. The non-woven mat according to claim 1 , wherein the mat exhibits improved rock drop impact properties as compared to a like nonwoven mat formed from a plurality of unfoamed PVC strands.3. The non-woven mat according to claim 1 , wherein the non-woven mat exhibits no holidays at 4 inch rocks when tested according to ASTM G13-89 as modified to accommodate the rockshield pad.4. A method of protecting a pipeline claim 1 , comprising arranging the non-woven mat according to on the pipeline so that the pipeline is protected from rock impacts.5. The non-woven mat according to claim 1 , wherein the plasticized PVC formulation comprises from 30 to 60 percent by weight of PVC and from 20 to 40 percent by weight of plasticizer.6. The non-woven mat according to claim 1 , wherein the plasticized PVC formulation comprises from 40 to 51 percent by weight of PVC and from 26 to 31 percent by weight of plasticizer.7. A non-woven mat comprising a plurality of foamed PVC strands that are fused together claim 1 , wherein ...

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Номер записи: 78
15-02-2018 дата публикации

Oriented Multilayer Porous Film

Номер: US20180043656A1
Автор: Song Jane M., Song Jennifer M., Song Kwangjin
Принадлежит: LiSo Plastics, L.L.C.

Provided is an oriented multilayer porous film comprising at least one layer comprising: a heat, solvent, and degradation resistant matrix polymer; a plurality of interconnecting pores; and a porosity less than 90%. The film is made by a dry and/or wet method, with its multilayer structure constructed by coextrusion, lamination, and coating. The film of this disclosure finds a wide range of applications as a permselective medium for use in energy harvesting and storage, filtration, separation and purification of gases and fluids, COand volatile capture, electronics, devices, structural supports, packaging, labeling, printing, clothing, drug delivery systems, bioreactor, and the like. The film is preferably used as a separator of lithium-ion, lithium-sulfur, lithium-air, metal-air, and nonaqueous electrolyte batteries. 1. An oriented multilayer porous film comprising at least one layer comprising a first polymer , a plurality of interconnecting pores , and a porosity less than 90% ,wherein each layer of the oriented multilayer porous film comprises 5 to 100 wt. % of a matrix polymer comprising: a) the first polymer or b) a second polymer having a crystalline melting temperature (Tm) or a glass transition temperature (Tg) less than 180° C.; the matrix polymer being selected from the group consisting of a petroleum-based polymer, a biopolymer and combinations thereof; andwherein the first polymer comprises a heat resistant polymer having a Tm or Tg greater than 180° C. or a polypropylene comprising a β-crystal nucleating agent (β-PP).2. The film of claim 1 , wherein the matrix polymer has a molecular weight characterized by: a) a weight average molecular weight (Mw) of 5 claim 1 ,000 to 50 claim 1 ,000 claim 1 ,000 g/mole and b) a unimodal or multimodal molecular weight distribution comprising at least one of: i) an ultrahigh molecular weight component of 0 to 70 wt. % having an Mw greater than 1 claim 1 ,000 claim 1 ,000 g/mole; ii) a high molecular weight component ...

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Номер записи: 79
16-02-2017 дата публикации

Polymer-based foam compositions comprising inorganic particulate fillers

Номер: US20170044343A1
Автор: Caroline ABLER, GILLES Meli, Michael Schmidt
Принадлежит: Imerys Talc Europe

There is disclosed a polymer-based foam composition comprising a polymer and up to 20 wt.-% particles of one or more inorganic particulate materials, based on the total weight of the composition, wherein the one or more inorganic particulate materials comprise less than 20 wt.-% Al, calculated as Al 2 O 3 -content, According to one aspect, the one or more inorganic particulate materials comprise phyllosilicates. Also part of the present invention is the use of such polymer-based foam compositions and their method of production.

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Номер записи: 80
16-02-2017 дата публикации

FOAMED POLYURETHANE POLYMERS FOR THE REGENERATION OF CONNECTIVE TISSUE

Номер: US20170044344A1
Автор: GERGES Irini, MARTELLO Federico, TAMPLENIZZA Margherita, TOCCHIO Alessandro
Принадлежит: TENSIVE S.R.L.

The present invention relates to a method of synthesis and the use of foamed, cross-linked polyurethane polymers, as a three-dimensional support called a “scaffold” for cell cultures in vitro and for in vivo implantation for the regeneration of connective tissues such as adipose tissue, osteochondral tissue and bone tissue. In particular, the invention relates to a method of preparing polymers or foamed polyurethane co polymers, having improved , which involves the use of two types of catalyst, one for the cross-linking reaction and one for the foaming reaction and the use of at least one polar aprotic high-boiling solvent. Said method comprises the following steps in sequence: a) providing a solution of a polyol or a mixture of polyols in a solvent or mixture of solvents; b) heating the solution in step a) to a temperature higher than the softening temperature of the polymer precursors; c) optionally adding an organic or inorganic filler material; d) adding to the mixture in step c) an aliphatic poly-isocyanate or a mixture of poly-aliphatic isocyanates; e) adding to the mixture in step (d)) a porogenic additive; f) adding to the mixture in step e) simultaneously a cross-linking catalyst of polyols with poly-isocyanates and a foaming catalyst to form a foamed polyurethane polymer or co-polymer; g) isolating the foamed polyurethane polymer or co-polymer produced in step f). 1hydrophilia. A method for the preparation of polymer or co-polymer polyurethane foams with improved , which involves the use of a catalyst for the cross-linking reaction and a catalyst for the foaming reaction , comprising the following steps in sequence:a) providing a solution of a polyol or a mixture of polyols in a solvent or mixture of solvents, in which the solvent is a high-boiling solvent having a boiling point of at least 15° C. higher than the softening temperature of the polyols used;b) heating the solution in step a) to a temperature higher than the softening temperature of said ...

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Номер записи: 81
16-02-2017 дата публикации

LIGHTWEIGHT STYRENE POLYMER COMPOSITIONS

Номер: US20170044345A1
Автор: ABBOUD Mohammed, CHUNG Andrew, Niessner Norbert
Принадлежит:

A thermoplastic molding composition is provided for use in automotive applications comprising: A) 40 to 88% by weight of an ABS and/or ASA resin, B) 5 to 30% by weight of hollow glass microspheres, C) 0.1 to 2.5% by weight of a chemical foaming agent, D) optionally 1 to 5% by weight of a compatibilizing agent, E) optionally 0 to 20% by weight of an impact modifier, and F) optionally 0.1 to 3% by weight of a plastic processing aid, wherein the sum of components A) to F) totals 100% by weight. 118-. (canceled)20. Thermoplastic molding composition according to claim 19 , comprising the components A) to F) in the following amounts:A) 40 to 88% by weight of an ABS and/or an ASA resin,B) 5 to 30% by weight of hollow glass microspheres,C) 0.1 to 2.5% by weight of a chemical foaming agent,D) 1 to 5% by weight of a compatibilizing agent,E) 5 to 20% by weight of an impact modifier, andF) optionally 0.1 to 3% by weight of a plastic processing aid component,wherein the sum of components A) to F) totals 100% by weight.21. Thermoplastic molding composition according to claim 19 , comprising the components A) to F) in the following amounts:A) 50 to 88% by weight of an ABS and/or an ASA resin,B) 5 to 30% by weight of hollow glass microspheres,C) 0.1 to 2.5% by weight of a chemical foaming agent,D) 1 to 5% by weight of a compatibilizing agent,E) 0.1 to 20% by weight of an impact modifier, andF) optionally 0.1 to 3% by weight of a plastic processing aid component,wherein the sum of components A) to F) totals 100% by weight.22. Thermoplastic molding composition according to claim 19 , comprising the components A) to F) in the following amounts:A) 50 to 75% by weight of a ABS and/or ASA resin, preferably ABS resin,B) 10 to 25% by weight of hollow glass microspheres,C) 0.1 to 2.5% by weight of a chemical foaming agent,D) 1 to 5% by weight of a compatibilizing agent,E) optionally 0 to 20% by weight of an impact modifier, andF) optionally 0.1 to 3% by weight of a plastic processing aid, ...

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Номер записи: 82
15-02-2018 дата публикации

REVERSIBLY CROSS-LINKABLE RESIN

Номер: US20180044495A1
Автор: Gawryla Matthew Daniel
Принадлежит:

Reversibly cross-linkable foam is provided. The reversibly cross-linked foam includes a first polymeric material, at least one reversibly cross-linkable monomer polymerized with the first polymeric material, and at least one blowing agent. The reversibly cross-linkable co-polymeric foam is thermally stable at temperatures of at least 10 degrees higher than otherwise identical polymeric foam that does not include the reversibly cross-linkable agent polymerized with the first polymeric material. 1. A method of manufacturing extruded reversibly cross-linkable polymeric foam comprising: a first polymeric material and;', 'at least one reversibly cross-linkable agent polymerized with said first polymeric material, forming a reversibly cross-linkable copolymer;, 'introducing a foamable polymeric composition into an extruder to form a polymer melt, said foamable polymeric composition comprisinginjecting at least one blowing agent into said reversibly cross-linkable copolymer, forming an extrusion composition; andextruding said extrusion composition to produce a reversibly cross-linkable foam, wherein said reversibly cross-linkable foam is thermally stable at temperatures of at least 10 degrees Celsius higher than otherwise identical polymeric foam that does not include the cross-linking agent polymerized with the first polymeric material.2. The method of claim 1 , wherein said first polymeric material comprises an alkenyl aromatic polymer.3. The method of claim 2 , wherein said alkenyl aromatic polymer is derived from one or more of styrene claim 2 , a-methylstyrene claim 2 , ethylstyrene claim 2 , vinyl benzene claim 2 , vinyl toluene claim 2 , chlorostyrene claim 2 , and bromostyrene.4. The method of claim 1 , wherein said cross-linking agent comprises a metal-ligand complex ion.5. The method of claim 1 , wherein said metal-ligand complex ion includes a hydroxyl-containing (meth)acrylate.6. The method of claim 1 , wherein said ligand is at least one of a polyester (meth) ...

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Номер записи: 83
15-02-2018 дата публикации

Polyamide resin foam shaped product and method of producing polyamide resin foam shaped product

Номер: US20180044497A1
Автор: Motoki Kondo, Yoshinori FUJINO
Принадлежит: Asahi Kasei Corp

Provided are a polyamide resin foam shaped product containing a polyamide resin and having a crystallinity X of 10% to 50% and a crystallite size D of 10 nm or more as calculated based on a peak having a smallest peak width in an X-ray diffraction profile of the foam shaped product, and a method of producing this polyamide resin foam shaped product.

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Номер записи: 84
14-02-2019 дата публикации

ROOFING MEMBRANES, COMPOSITIONS, AND METHODS OF MAKING THE SAME

Номер: US20190045881A1
Автор: Gopalan Krishnamachari, Herd-Smith Roland, Ji Gending, Lenhart Robert J.
Принадлежит: COOPER-STANDARD AUTOMOTIVE INC.

A roofing membrane and a method of making the same is provided. The roofing membrane includes a top layer having a flame retardant and a first silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm; a scrim layer; and a bottom layer having a flame retardant and a second silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm. The top and bottom layers of the roofing membrane both exhibit a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.). 1. A roofing membrane comprising:{'sup': '3', 'a top layer comprising a flame retardant and a first silane-crosslinked polyolefin elastomer having a density less than 1.45 g/cm;'}an optional scrim layer; and{'sup': '3', 'a bottom layer comprising a flame retardant and a second silane-crosslinked polyolefin elastomer having a density less than 1.45 g/cm.'}2. The roofing membrane of claim 1 , wherein the flame retardant comprises a magnesium hydroxide and/or an aluminum hydroxide from about 20 wt % to about 70 wt %.3. The roofing membrane of claim 1 , wherein the first and second silane-crosslinked polyolefin elastomers both exhibit a crystallinity of from about 5% to about 25%.4. The roofing membrane of claim 1 , wherein the first and second silane-crosslinked polyolefin elastomers have a glass transition temperature of from about −75° C. to about −25° C.5. The roofing membrane of claim 1 , wherein the first and second silane-crosslinked polyolefin elastomers each comprise a first polyolefin having a density less than 0.86 g/cm claim 1 , a second polyolefin claim 1 , a silane crosslinker claim 1 , a grafting initiator claim 1 , and a condensation catalyst.6. The roofing membrane of claim 5 , wherein the silane crosslinker comprises a vinyltrialkoxy silane from about 1 wt % to about 4 wt %.7. The roofing membrane of claim 5 , wherein the condensation catalyst comprises a sulfonic ester catalyst and/or a tin catalyst from about 1 wt % to ...

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Номер записи: 85
19-02-2015 дата публикации

POLYMERIC MATERIAL FOR AN INSULATED CONTAINER

Номер: US20150051302A1
Автор: Bowlds Randy A., Contrada Svetlana I., Davis Daniel O., Driskill Philip A., Euler John B., Leser Chris K., Mann Jeffrey A., Maravich Milan C., Paladino Jason J., Sun David Dezhou, Wallace Charles T.
Принадлежит:

A formulation includes a base resin, a nucleating agent, and a blowing agent. The formulation can be used to form a container. 1. A polymeric formulation comprisingabout 50-99.9 wt % of a base resin,up to about 10 wt % of a slip agent,up to about 10 wt % of a chemical blowing agent, andabout 0.5-10 wt % of a nucleating agent.2. (canceled)3. The polymeric formulation of claim 1 , wherein the base resin is about 95 to 98 wt %.4. (canceled)5. The polymeric formulation of claim 3 , wherein the base resin is about 96 wt % to about 97 wt %.6. The polymeric formulation of any of claim 1 , wherein the base resin comprises a secondary base resin.7. The polymeric formulation of claim 6 , wherein the secondary base resin is up to about 50 wt %.8. The polymeric formulation of claim 6 , wherein the secondary base resin is up to about 10 wt %.911-. (canceled)12. The polymeric formulation of claim 8 , wherein the secondary base resin is a polypropylene resin.1315-. (canceled)16. The polymeric formulation of claim 1 , wherein the slip agent is about 1 to 3 wt %.17. (canceled)18. The polymeric formulation of further comprising up to about 10 wt % of a colorant.19. The polymeric formulation of claim 18 , wherein the colorant is up to about 5 wt %.20. (canceled)21. The polymeric formulation of claim 19 , wherein the colorant is about 0.5 to 2 wt %.2223-. (canceled)24. The polymeric formulation of claim 1 , wherein the nucleating agent is about 0.5 to 5 wt %.2526-. (canceled)27. The polymeric formulation of claim 24 , wherein the chemical blowing agent is about 0.1 to 2 wt %.28. (canceled)29. The polymeric formulation of claim 27 , wherein the chemical blowing agent is about 0.1 wt %.3034-. (canceled)35. The polymeric formulation of claim 1 , wherein the nucleating agent is selected from the group consisting of a chemical nucleating agent claim 1 , a physical nucleating agent claim 1 , and a combination of a chemical nucleating agent and a physical nucleating agent.36. The polymeric ...

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Номер записи: 86
14-02-2019 дата публикации

LIQUID MODIFIER AS CARRIER SYSTEM FOR CFAS IN FOAMED POLYSTYRENES

Номер: US20190048162A1
Автор: GRÖSELING Mirco, KOHNKE Patrick, MOTANI Rinaldo, VAN DEN ABBEELE Tim, WARTIG Karen Alessa
Принадлежит: CLARIANT PLASTICS & COATINGS LTD

The invention relates to a liquid formulation for foaming a thermoplastic polystyrene, said formulation comprising 1. A liquid formulation for foaming a thermoplastic polystyrene , said formulation comprisinga) 25-90 wt. % of a liquid carrier; andb) at least one endothermic chemical blowing agent selected from the group consisting of tricarboxylic acids, salts of tricarboxylic acids and esters of tricarboxylic acids.2. The formulation as claimed in claim 1 , wherein the formulation is a dispersion and wherein the endothermic chemical blowing agent is dispersed in the liquid carrier.3. The formulation as claimed in claim 1 , wherein the chemical blowing agent is selected from the group consisting of succinic acid claim 1 , succinic acid salts claim 1 , succinic acid esters claim 1 , adipic acid claim 1 , adipic acid salts claim 1 , adipic acid esters claim 1 , phthalic acid claim 1 , phthalic acid salts claim 1 , phthalic acid esters claim 1 , citric acid claim 1 , citric acid salts and citric acid esters.4. The formulation as claimed in claim 1 , wherein the chemical blowing agent is selected from the group consisting of citric acid claim 1 , citric acid salts and citric acid esters.5. The formulation as claimed in claim 1 , wherein the liquid carrier comprises an aqueous medium claim 1 , an organic solvent-based medium claim 1 , an oil-based medium or a combination thereof.6. The formulation as claimed in claim 1 , wherein the liquid carrier comprises a vegetable oil claim 1 , a mineral oil claim 1 , an acetylated monoglyceride claim 1 , a sorbitan oleate claim 1 , an ethoxylated sorbitan oleate or a mixture thereof.7. The formulation as claimed in claim 1 , further comprising customary additives selected from the group consisting of colorants claim 1 , stabilizers claim 1 , antioxidants claim 1 , antibacterial agents claim 1 , neutralizers claim 1 , antistatic agents claim 1 , antiblocking agents claim 1 , optical brighteners claim 1 , heavy metal inactivation ...

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Номер записи: 87
22-02-2018 дата публикации

FOAMABLE RESIN COMPOSITION AND MOLDED FOAM

Номер: US20180051151A1
Автор: ICHIKI Tomohito, JINDAI Saki
Принадлежит: BANDO CHEMICAL INDUSTRIES, LTD.

The present invention provides a foamable resin composition excellent in terms of the dispersibility and moldability. The foamable resin composition containing: from 30 to 80 wt % of a polyolefin; from 3 to 40 wt % of a polylactic acid; from 1 to 20 wt % of a modified polyolefin containing a carbonyl group in a molecule; from 10 to 40 wt % of a layered silicate; and from 0.01 to 0.5 wt % of a filler, the polyolefin containing at least one of polypropylene and polyethylene, the filler having a density different from the density of the layered silicate by at least 0.20 g/cm. 1. A foamable resin composition comprising:from 30 to 80 wt % of a polyolefin;from 3 to 40 wt % of a polylactic acid;from 1 to 20 wt % of a modified polyolefin containing a carbonyl group in a molecule;from 10 to 40 wt % of a layered silicate; andfrom 0.01 to 0.5 wt % of a filler,the polyolefin containing at least one of polypropylene and polyethylene,{'sup': '3', 'the filler having a density different from the density of the layered silicate by at least 0.20 g/cm.'}2. A molded foam obtained by foam molding the foamable resin composition according to .3. The molded foam according to claim 2 , obtained by blending a foamable resin composition comprising:from 30 to 80 wt % of a polyolefin;from 3 to 40 wt % of a polylactic acid;from 1 to 20 wt % of a modified polyolefin containing a carbonyl group in a molecule;from 10 to 40 wt % of a layered silicate; andfrom 0.01 to 0.5 wt % of a filler,the polyolefin containing at least one of polypropylene and polyethylene,{'sup': '3', 'the filler having a density different from the density of the layered silicate by at least 0.20 g/cm;'}and a supercritical fluid and making the resulting mixture foam.41. The molded foam according to claim 2 , obtained by injection molding a foamable resin composition comprising:from 30 to 80 wt % of a polyolefin;from 3 to 40 wt % of a polylactic acid;from 1 to 20 wt % of a modified polyolefin containing a carbonyl group in a ...

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Номер записи: 88
26-02-2015 дата публикации

RESIN COMPOSITION FOAM AND METHOD FOR PRODUCING THE SAME

Номер: US20150057382A1
Автор: Park Chul, Rizvi Ali, YAMAGUCHI Masayuki
Принадлежит: MITSUBISHI RAYON CO., LTD.

The present invention relates to a method for producing a resin composition foam comprising dissolving a supercritical fluid in a resin composition containing polytetrafluoroethylene and another resin other than polytetrafluoroethylene at a temperature equal to or higher than a glass transition point of the other resin, then foaming the resin composition by removing the supercritical fluid at a temperature lower than a temperature obtained by adding 15° C. to a thermal deformation starting temperature of the other resin, and subsequently cooling. In addition, the present invention relates to a resin composition foam, wherein the resin composition foam has a pore size of less than 50 μm, and the resin composition foam is any one of an open cell, a closed cell and a monolith type. 1. A method for producing a resin composition foam comprising:dissolving a supercritical fluid in a resin composition comprising polytetrafluoroethylene and another resin other than polytetrafluoroethylene at a temperature equal to or higher than a glass transition point of the other resin, thenfoaming the resin composition by removing the supercritical fluid at a temperature lower than a temperature obtained by adding 15° C. to a thermal deformation starting temperature of the other resin, and subsequentlycooling the resin composition.2. A method for producing a resin composition foam comprising:dissolving a supercritical fluid in a resin composition comprising polytetrafluoroethylene and another resin other than polytetrafluoroethylene at a temperature lower than a glass transition point of the other resin over a time longer than 30 minutes, thenfoaming the resin composition by removing the supercritical fluid at a temperature lower than a temperature obtained by adding 15° C. to a thermal deformation starting temperature of the other resin, and subsequentlycooling the resin composition.3. The method of claim 1 , wherein the resin composition comprises a foam regulator (C).4. The method of ...

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Номер записи: 89
26-02-2015 дата публикации

Polar Polystyrene Copolymers for Enhanced Foaming

Номер: US20150057383A1
Автор: Greenberg Melissa, Knoeppel David W., Wang Wei
Принадлежит:

A method of making a foamable polystyrene composition includes combining a styrenic monomer and a co-monomer containing a polar functional group to obtain a mixture, subjecting the mixture to polymerization to obtain a styrenic co-polymer, and combining the styrenic co-polymer with a blowing agent in a foaming process to obtain foamed articles. 121-. (canceled)22. A polystyrene composition comprising:a styrenic co-polymer resulting from polymerization of a reaction mixture comprising a styrenic monomer and polyvinyl acetate; anda blowing agent.23. The foamable polystyrene composition of claim 22 , wherein the blowing agent comprises CO.24. The foamable polystyrene composition of claim 22 , wherein the blowing agent is present in the styrenic co-polymer in a weight proportion ranging from 1 to 30 parts per 100 parts of styrenic material.25. The foamable polystyrene composition of claim 22 , wherein the polyvinyl acetate is present in an amount ranging from 0.5 to 20 wt % of the styrenic co-polymer.26. A polystyrene foam obtained from the foamable polystyrene composition of .27. An article made from the polystyrene foam of .28. A method comprising:combining a styrene monomer and polyvinyl acetate to obtain a reaction mixturesubjecting the reaction mixture to polymerization conditions to obtain a styrenic co-polymer; andcombining the styrenic co-polymer with a blowing agent to obtain a foamable blend.29. A polystyrene composition comprising:a styrenic co-polymer resulting from polymerization of a reaction mixture comprising a styrenic monomer and from 0.5 to 20 wt % of a co-monomer having a polar functional group, wherein the co-monomer having the polar functional group is selected from a group consisting of fluorinated(meth)acrylate, glycidyl(meth)acrylate, and hexafluorobutyl acrylate; and{'sub': 2', '2, 'a blowing agent comprising CO, wherein the styrenic co-polymer exhibits increased solubility of COin comparison to a styrene polymer that is not modified with a co- ...

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Номер записи: 90
15-05-2014 дата публикации

Thermally hardenable preparations

Номер: US20140131910A1
Автор: Karl Wesch, Manfred Rainer, Rainer Kohlstrung
Принадлежит: Henkel AG and Co KGaA

The subject matter of the present application is thermally-expandable preparations, containing (a) at least one peroxide-crosslinkable polymer, (b) at least one low-molecular, multifunctional acrylate, (c) at least one peroxide and (d) at least two different chemical propellants, the mass ratio of the at least one peroxide to the at least one low-molecular, multifunctional acrylate being at least 1:3.

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Номер записи: 91
10-03-2022 дата публикации

CURABLE COMPOSITIONS COMPRISING UNSATURATED POLYOLEFINS

Номер: US20220073540A1
Автор: CHEN Hongyu, Habersberger Brian M., Kummer Kyle G., Li Pi Shan Colin, Munro Jeffrey C., Sun Lixin, WU Gaoxiang, Yang Hong, Yu Haiyang
Принадлежит:

The present disclosure relates to unsaturated polyolefins and processes for preparing the same. The present disclosure further relates to curable formulations comprising the unsaturated polyolefins that show improved crosslinking. 1. A curable composition comprising (A) a polyolefin component comprising an unsaturated polyolefin of the formula ALthat has a viscosity less than 100 ,000 cP and (B) a curing component comprising a cross-linking agent , wherein:{'sup': '1', 'Lis a polyolefin;'}{'sup': 1', '1', '1', '1', '1', '1', '1', '1', '1, 'sub': 2', '2', '2', '2, 'Ais selected from the group consisting of a vinyl group, a vinylidene group of the formula CH═C(Y)—, a vinylene group of the formula YCH═CH—, a mixture of a vinyl group and a vinylene group of the formula YCH═CH—, a mixture of a vinyl group and a vinylidene group of the formula CH═C(Y)—, a mixture of a vinylidene group of the formula CH═C(Y)— and a vinylene group of the formula YCH═CH—, and a mixture of a vinyl group, a vinylidene group of the formula CH═C(Y)—, and a vinylene group of the formula YCH═CH—; and'}{'sup': '1', 'sub': 1', '30, 'Yat each occurrence independently is a Cto Chydrocarbyl group.'}2. A curable composition comprising (A) a polyolefin component comprising a telechelic polyolefin of the formula ALLAthat has a viscosity less than 100 ,000 cP and (B) a curing component comprising a cross-linking agent , wherein:{'sup': '1', 'Lis a polyolefin;'}{'sup': 1', '1', '1', '1', '1', '1', '1', '1', '1, 'sub': 2', '2', '2', '2, 'Ais selected from the group consisting of a vinyl group, a vinylidene group of the formula CH═C(Y)—, a vinylene group of the formula YCH═CH—, a mixture of a vinyl group and a vinylene group of the formula YCH═CH—, a mixture of a vinyl group and a vinylidene group of the formula CH═C(Y)—, a mixture of a vinylidene group of the formula CH═C(Y)— and a vinylene group of the formula YCH═CH—, and a mixture of a vinyl group, a vinylidene group of the formula CH═C(Y)—, and a ...

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Номер записи: 92
10-03-2022 дата публикации

FOAMED COMPOSITION

Номер: US20220073730A1
Автор: EISENMENGER Nancy, ENGELS Tom Antonius Philomena, ROOZEMOND Peter
Принадлежит:

The invention relates to a foamed composition comprising a thermoplastic copolyester elastomer, wherein the foamed composition has a relative solution viscosity of at least 4.1 as measured according to ISO 1628-5:2015 and wherein the thermoplastic copolyester elastomer comprises hard segments built up from polyester repeating units derived from at least one aliphatic diol and at least one aromatic dicarboxylic acid or an ester thereof and soft segments being polytetramethylene oxide. The invention also relates to a process for preparing the foamed composition. 1. Foamed composition comprising a thermoplastic copolyester elastomer , wherein the foamed composition has a relative solution viscosity of at least 4.1 as measured according to ISO 1628-5:2015 and wherein the thermoplastic copolyester elastomer comprises hard segments built up from polyester repeating units derived from at least one aliphatic diol and at least one aromatic dicarboxylic acid or an ester thereof and soft segments being polytetramethylene oxide.2. Foamed composition according to claim 1 , wherein the hard segments are chosen from the group consisting of ethylene terephthalate (PET) claim 1 , propylene terephthalate (PPT) claim 1 , butylene terephthalate (PBT) claim 1 , polyethylene bibenzoate claim 1 , polyethelyene naphatalate (PEN) claim 1 , polybutylene bibenzoate claim 1 , polybutylene naphatalate claim 1 , polypropylene bibenzoate and polypropylene naphatalate and combinations thereof.3. Foamed composition according to claim 1 , wherein the hard segment is chosen from PBT or PET.4. Foamed composition according to claim 1 , wherein the thermoplastic copolyester elastomer is present in an amount of at least 70 wt % claim 1 , wherein wt % is with respect to the total weight of the composition.5. Foamed composition according to claim 1 , wherein the foamed composition further comprises a plasticizer in an amount of at most 30 wt % with respect to the total weight of foamed composition claim 1 ...

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Номер записи: 93
15-05-2014 дата публикации

In-mould-foaming process using a foamable medium with outer layers, and plastics moulding obtainable therefrom

Номер: US20140134422A1
Автор: Arnim Kraatz, Axel Zajonz, Matthias Alexander Roth, Rainer Zimmermann
Принадлежит: Evonik Industries AG

The use of a solid, foamable plastic, for example poly(meth)acrylimide (PMI), polyvinyl chloride (PVC), polyurethane (PU) or poly(meth)acrylate (PMMA), permits the production of a plastics foam composite moulding which is in essence homogeneous and which, in the course of the foaming process at about 200 degrees Celsius, forms a stable mechanical bond with an outer layer or a plurality of outer layers or with a plurality of identical or different outer layers.

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Номер записи: 94
01-03-2018 дата публикации

SUPER ABSORBENT RESIN

Номер: US20180056274A1
Автор: Hwang Min Ho, Jang Tae Hwan, Lee Sang Gi, LEE Soo Jin, Nam Hye Mi
Принадлежит: LG CHEM, LTD.

The present invention relates to a super absorbent resin, and the super absorbent resin can exhibit a fast absorption rate and high gel strength even in a partially swollen state through the size optimization of partially swollen gel particles. Therefore, the use of the super absorbent resin can effectively prevent a rewetting phenomenon. 1. A superabsorbent polymer having an average particle size of 300 μm to 600 μm , wherein a gel , which is obtained by swelling 1 g of the superabsorbent polymer in 20 g of 0.9% by weight of a sodium chloride aqueous solution for 10 minutes , has an average particle size of 600 μm to 1000 μm.2. The superabsorbent polymer of claim 1 , wherein a particle having a particle size of 300 μm to 600 μm is 45% by weight to 85% by weight.3. The superabsorbent polymer of claim 1 , wherein a particle having a particle size of more than 0 μm and 300 μm or less is 15% by weight to 25% by weight.4. The superabsorbent polymer of claim 1 , wherein a fraction of a gel having a particle size of more than 0 μm and 600 μm or less is 5% by weight to 30% by weight.5. The superabsorbent polymer of claim 1 , wherein centrifuge retention capacity in a physiological saline solution is 28 g/g to 35 g/g claim 1 , absorbency under load of 0.9 psi in the physiological saline solution is 14 g/g to 22 g/g claim 1 , free swell gel bed permeability in the physiological saline solution is 40 darcy to 100 darcy claim 1 , and a vortex time is 20 seconds to 60 seconds.6. A preparation method comprising the steps of: performing crosslinking polymerization of a monomer mixture in the presence of an internal crosslinking agent to form a water-containing gel polymer claim 1 , the monomer mixture including water-soluble ethylene-based unsaturated monomers having acidic groups which are at least partially neutralized claim 1 , a foaming agent claim 1 , a foam promoter claim 1 , and a surfactant; drying claim 1 , pulverizing claim 1 , and size-sorting the water-containing gel ...

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Номер записи: 95
03-03-2016 дата публикации

BIODEGRADABLE FOAMED MATERIAL

Номер: US20160060412A1
Автор: Barrette Daniel Bernard
Принадлежит:

A biodegradable foamed material is formed from corn meal, corn flour and distillers grains, especially dried distillers grains with solubles (DDGS). The foamed material has a low density and is cheaper to produce, has a more pleasing color and may be formed faster and into larger pellets than packaging material formed from corn meal without corn flour and distillers grains. The foamed material is useful in packaging, as insulation and the like. 1. A biodegradable foamed material formed from corn meal , corn flour and distillers grains.2. The material according to claim 1 , wherein the distillers grains comprises dried distillers grains with solubles (DDGS).3. The material according to claim 2 , formed with 25-75 wt % corn meal claim 2 , 0.5-15 wt % corn flour and 10-45 wt % DDGS claim 2 , all weights based on total weight of corn meal claim 2 , corn flour and DDGS.4. The material according to claim 2 , formed with 40-60 wt % corn meal claim 2 , 7-15 wt % corn flour and 30-45 wt % DDGS claim 2 , all weights based on total weight of corn meal claim 2 , corn flour and DDGS.5. The material according to claim 2 , formed with 50 wt % corn meal claim 2 , 10 wt % corn flour and 40 wt % DDGS claim 2 , all weights based on total weight of corn meal claim 2 , corn flour and DDGS.6. The material according to having a density 1.05 times or more less than density of a material formed from corn meal without corn flour and distillers grains.7. The material according to which is a biodegradable foamed pellet.8. The material according to having a moisture content in a range of 1-5 wt % based on weight of the material.9. A process for producing biodegradable foamed material claim 2 , comprising extruding a mixture of corn meal claim 2 , corn flour and distillers grains in an extruder at a temperature in a range of 125° C. to 165° C. to produce an extruded foamed material.10. The material according to claim 9 , wherein the distillers grains comprises dried distillers grains with ...

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Номер записи: 96
01-03-2018 дата публикации

Process for Producing Humic Acid-Derived Conductive Foams

Номер: US20180057360A1
Автор: Jang Bor Z., Zhamu Aruna
Принадлежит: Nanotek Instruments, Inc.

A process for producing a humic acid (HA)-derived foam, comprising: (a) preparing a HA dispersion having multiple HA molecules and an optional blowing agent dispersed in a liquid medium having a blowing agent-to-HA weight ratio from 0/1.0 to 1.0/1.0; (b) dispensing and depositing the HA dispersion onto a surface of a supporting substrate to form a wet HA layer; (c) partially or completely removing liquid medium from the wet HA layer to form a dried HA layer; and (d) heat treating the dried HA layer at a first heat treatment temperature from 80° C. to 3,200° C. at a desired heating rate sufficient to induce volatile gas molecules from the non-carbon elements or to activate the blowing agent for producing the HA-derived foam. 1. A process for producing a humic acid-derived foam , said process comprising:(a) preparing a humic acid dispersion having multiple humic acid molecules or sheets dispersed in a liquid medium, wherein said humic acid is selected from a group consisting of oxidized humic acid, reduced humic acid, fluorinated humic acid, chlorinated humic acid, brominated humic acid, iodized humic acid, hydrogenated humic acid, nitrogenated humic acid, doped humic acid, chemically functionalized humic acid, and a combination thereof and wherein said dispersion contains an optional blowing agent having a blowing agent-to-humic acid weight ratio from 0/1.0 to 1.0/1.0;(b) dispensing and depositing said humic acid dispersion onto a surface of a supporting substrate to form a wet layer of humic acid;(c) partially or completely removing said liquid medium from the wet layer of humic acid to form a dried layer of humic acid; and{'sub': '002', '(d) heat treating the dried layer of humic acid at a first heat treatment temperature from 80° C. to 3,200° C. at a desired heating rate sufficient to induce volatile gas molecules from said non-carbon elements or to activate said blowing agent for producing said humic acid-derived foam, which is composed of multiple pores and pore ...

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Номер записи: 97
01-03-2018 дата публикации

Polypropylene foams and processes of making

Номер: US20180057651A1
Автор: Chiang Hsiang Lin
Принадлежит: LCY Chemical Corp

The present disclosure provides a linear polypropylene foam with, for example, low density and/or high expansion ratio, said linear polypropylene foam comprising at least one polypropylene, at least one alpha nucleating agent, and at least one beta nucleating agent. The present disclosure also provides compositions and processes for making said linear polypropylene foam.

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Номер записи: 98
04-03-2021 дата публикации

THERMALY EXPANDABLE COMPOSITION WITH REDUCED ODOR FORMATION

Номер: US20210061981A1
Автор: FARHAT Elizabeth, FRICK Karsten, KELLER Alina, PASULA Sascha, WOLSCHLEGER Leslie
Принадлежит: SIKA TECHNOLOGY AG

A thermally expandable composition includes at least one polymer P cross-linkable by peroxide, and at least one acrylate, and at least one peroxide, azodicarbonamide and a zinc compound. The thermally expandable composition leads to low odor formation and low ammonia emission during and after the foaming process. The thermally expandable composition further shows excellent properties in terms of expansion stability. 1. A thermally expandable composition , comprising(a) at least one polymer P, cross-linkable by peroxide, and(b) at least one acrylate A, and(c) at least one peroxide PE, and(d) azodicarbonamide ADCA,(e) zinc compound ZC,wherein the molar ratio of the zinc compounds ZC to the peroxide PE is between 0.1 and 6.0,and the molar ratio of the azodicarbonamide ADCA to the peroxide PE is between 5 and 30.2. The thermally expandable composition according to claim 1 , wherein the molar ratio of the zinc compound ZC to the peroxide PE is between 0.1 and 4.0.3. The thermally expandable composition according to claim 1 , wherein the molar ratio of the zinc compound ZC to the peroxide PE is between 0.5 and 2.5.4. The thermally expandable composition according to claim 1 , wherein the molar ratio of the zinc compound ZC to the peroxide PE is between 0.1 and 2.05. The thermally expandable composition of claim 1 , wherein the molar ratio of the azodicarbonamide ADCA to the peroxide PE is between 8 and 25.6. The thermally expandable composition of claim 1 , wherein the molar ratio of the azodicarbonamide ADCA to the peroxide PE is between 12 and 25.7. The thermally expandable composition of claim 1 , wherein the molar ratio of the azodicarbonamide ADCA to the sum of peroxide PE and zinc compound ZC (ADCA:(PE+ZC)) is between 2 and 20.8. The thermally expandable composition of claim 1 , wherein the zinc compound ZC is selected from at least one of the group consisting of zinc oxide claim 1 , zinc stearate claim 1 , zinc bis(p-toluenesulphinate) and zinc bis( ...

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Номер записи: 99
22-05-2014 дата публикации

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

Номер: US20140138868A1
Автор: Kiyotaka Nakayama
Принадлежит: Kaneka Corp

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

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Номер записи: 100