Abstract: A formulation for foaming a thermoplastic polymer, for example PVC, comprises a carrier, exothermic and endothermic chemical blowing agents and 1 wt %, preferably less than 0.2 wt % of water. The liquid formulation can readily be used for foaming PVC and other thermoplastics.

Abstract: The present invention relates to a composition for solubilizing a fluoropolymer, comprising a solvent blend of a) Compound of formula (I) R1 C(=0)NR2R3 wherein R1 and R2 and R3 are defined as in the specification and b) DiMethylSulfoxide (DMSO). The invention also relates to the process for the preparation of the composition and its uses. The invention is also of use the fluoropolymer composition for coating applications.

Abstract: A frothed polymer foam including a highly crystalline polyolefin dispersion, a cross-linkable binder and a surfactant. A process of manufacturing a frothed polymer foam including a highly crystalline polyolefin dispersion, a cross-linkable binder and a surfactant.

Abstract: An intumescent coating composition having improved char yield, while maintaining its physical, mechanical, and esthetic properties comprises (a) particulate poly(phenylene ether), wherein the mean particle size of the poly(phenylene ether) is 1 to 100 micrometers; (b) a film-forming binder; (c) an acid source; (d) a blowing agent; and (e) optionally, a carbon source other than the particulate poly(phenylene ether); wherein polyolefins, homopolystyrenes, rubber-modified polystyrenes, styrene-containing copolymers, and hydrogenated and unhydrogenated block copolymers of an alkenyl aromatic compound and a conjugated diene are all absent from the composition.

Abstract: The invention relates to a method of preparing a composite or porous composite used as a biodegradable scaffold, the composite prepared therefrom and the use of the composite. In particular, the composite is a calcium sulfate-polylactic acid composite or porous composite and the composite can be especially used as an in situ pore forming scaffold.

Abstract: A coated method for the preparation of a separator comprising multiple layers of glass or glass and ceramic particles for use in an electrochemical cell, an electrochemical cell comprising such a separator and the use of such an electrochemical cell. The method comprises the steps of providing a mixture of an organic polymeric material, glass or glass and ceramic particles and at least one solvent, and preparing a multilayer by phase inversion.

Abstract: A composition for sportswear, includes a rubber component (a) which contains an epihalohydrin rubber, a vulcanizing agent (b) in an amount of 0.1 to 10 parts by weight for 100 parts by weight of the rubber component (a), and a foaming agent (c) in an amount of 0.5 to 20 parts by weight therefor. The composition for sportswear is preferably includes a colorant (d).

Abstract: The present invention relates to a foam sheet using cross-linked polylactic acid and method of manufacturing the same, and more particularly a foam sheet using cross-linked polylactic acid and method of manufacturing the same with not only excellent waterproofing and workability but also relatively high foaming ratio and a uniform closed foam cell structure, by producing cross-linked polylactic acid resin in a fixed condition using composites comprising polylactic acid, cross linking agents, and/or co-crosslinking agents, and then forming a sheet shape in a fixed condition using composites comprising the cross-linked polylactic acid and foaming agents, and then foaming at relatively high temperature conditions.

Abstract: A process for the production of a resilient foam by foaming a mixture, comprising from 50 to 97% by weight of an aqueous dispersion A) of SiO2 particles which have a mean particle diameter in the range from 1 to 100 nm, from 1 to 45% by weight of a polymer B) dissolved in water from 1 to 50% by weight of a blowing agent C) from 1 to 5% by weight of an emulsifier D) from 0 to 5% by weight of a crosslinking agent E) reactive with the polymer B), and the foam obtainable by the process and the use thereof.

Abstract: A vehicle tyre includes a tread formed of a heat-expandable rubber composition when in an unvulcanized state. The composition includes: from 50 to 100 phr of a copolymer based on styrene and butadiene; optionally from 0 to 50 phr of another diene elastomer, such as a polybutadiene or natural rubber; more than 50 phr of a reinforcing filler, such as silica and/or carbon black; between 5 and 25 phr of a blowing agent, such as an azodicarbonamide compound; and between 5 and 25 phr of a heat-fusible compound having a melting point between 70° C. and 150° C., such as urea or a heat-fusible urea derivative. A total content of the blowing agent and the heat-fusible compound is greater than 15 phr. Use of the composition enables, after the tyre is vulcanized, a significant reduction in noise emitted by the tyre during running.

Abstract: A vehicle tyre, usable in winter weather, includes a tread formed of a rubber composition that is heat-expandable when in an unvulcanized state, and expanded when in a vulcanized state. When unvulcanized, the composition includes a diene elastomer, such as natural rubber and/or a polybutadiene; more than 50 phr of a reinforcing filler, such as silica and/or carbon black; between 5 and 25 phr of a sodium- or potassium-including carbonate or hydrogen carbonate; and between 2 and 20 phr of a carboxylic acid having a melting point between 60° C. and 220° C., such as citric acid or stearic acid. A total content of the carboxylic acid and the carbonate or the hydrogen carbonate is greater than 10 phr. Presence of the carboxylic acid and the carbonate or the hydrogen carbonate makes it possible to greatly improve the tyre's grip on melting ice.

Abstract: 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.

Abstract: An ethylene-propylene-diene rubber foamed material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. A rate of change of an 80% compressive load value CL2 after being heated at 150° C. for 10 days to an 80% compressive load value CL1 before being heated is ?50% or more and 50% or less and the 80% compressive load value CL1 before being heated is 0.5 N/cm2 or more and 10 N/cm2 or less.

Abstract: An ethylene-propylene-diene rubber foamed material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber and a cross-linking agent. The cross-linking agent does not contain sulfur and contains a thiuram compound and the mixing ratio of the thiuram compound with respect to 100 parts by mass of the ethylene-propylene-diene rubber is 0.05 parts by mass or more and less than 20 parts by mass.

Abstract: The invention relates to a process for producing polyurethane foams, by frothing and drying mixtures of specific polyurethane dispersions and crosslinkers.

Abstract: The present invention relates to an open-celled foam comprising: (a) an aqueous-based polymer dispersion, said polymer dispersion comprising a polyethylene copolymer and an ethylene-acrylic acid copolymer; and (b) from about 5% to about 15% of a foaming composition, said foaming composition comprising at least a foaming agent and a stabilizing agent; further comprising a particulate superabsorbent polymer material within the voids and pores of said open-celled foam and the method of making the same.

Abstract: An EPDM foam is obtained by foaming a foam composition containing, based on 100 parts by weight of an ethylenepropylenediene rubber, 0.1 to 5 parts by weight of a vulcanizer, 0.1 to 10 parts by weight of a vulcanization accelerator, 1 to 30 parts by weight of a foaming agent, and a foaming auxiliary agent. The vulcanization accelerator contains a thiourea vulcanization accelerator, a thiazole vulcanization accelerator, a dithiocarbamate vulcanization accelerator, and a thiuram vulcanization accelerator such that a thiourea vulcanization accelerator/thiazole vulcanization accelerator/dithiocarbamate vulcanization accelerator/thiuram vulcanization accelerator weight ratio is in a range of 1 to 20/1 to 20/1 to 20/1 to 30.

Abstract: A battery electrode or separator surface protective agent composition having fluidity and being capable of being solidified by hot melt, and comprising at least two types of organic particles comprising organic materials, wherein the organic particles of types different from each other are substantially incompatible with each other, wherein when the composition is solidified by hot melt, the organic particles of the same type thermally fuse with one another to form a continuous phase.

Abstract: A crown system includes a crown having a top surface and a bottom surface and a liner having a top surface that contacts a bottom surface of the crown. The liner is configured to absorb oxygen in a headspace and includes at least about 2.2 micromoles of sodium sulfite per cubic millimeter in a volume of the liner to a depth of about 0.003 millimeter from a bottom surface of the liner.

Abstract: The invention relates to a cross-linked elastomer composition including: an ethylene/alpha-olefin multiblock copolymer comprising polymerized ethylene and alpha-olefin units, an elastomer including a block copolymer having at least two, identical or different, aromatic blocks which are separated by at least one elastomer block, and a cross-linkable polymer, for example, a diene elastomer. The invention also relates to a product including the composition, and to the use of such a product as a seal.

Abstract: The present invention provides a crosslinkable and expandable elastomeric material based on and/or containing siloxane polymer, the process for manufacturing of such material and the use of such material and its blends and composites.

Abstract: Provided are separators for use in batteries and capacitors comprising (a) at least 50% by weight of an aluminum oxide and (b) an organic polymer, wherein the aluminum oxide is surface modified by treatment with an organic acid to form a modified aluminum oxide, and wherein the treatment provides dispersibility of the aluminum oxide in aprotic solvents such as N-methyl pyrrolidone. Preferably, the organic acid is a sulfonic acid, such as p-toluenesulfonic acid. Also preferably, the organic polymer is a fluorinated polymer, such as polyvinylidene fluoride. Also provided are electrochemical cells and capacitors comprising such separators.

Abstract: A foaming composition for filling and sealing contains a polymer, 4,4?-oxybis(benzene sulfonyl hydrazide) and/or azodicarbonamide, and a hydrocalumite.

Abstract: A method for producing a porous body containing polyacrylonitrile as a main component, and the method includes the steps of obtaining a polyacrylonitrile solution by heating and dissolving the polyacrylonitrile in a solvent, obtaining a product precipitated by cooling the polyacrylonitrile solution, and obtaining the porous body containing the polyacrylonitrile as a main component by separating and drying the product. The solvent contains a poor solvent for the polyacrylonitrile and a good solvent for the polyacrylonitrile.

Abstract: Subject is rocket foam. This letters patent is for construction of a space craft from acrylonitrile foam polymer. The new art involves making a polymer sheet plasticized with sulfur dioxide gas. The plasticize sheet is drape formed and then heated to drive off the gas leaving a rigid foamed polymer shape. The sheet during plasticize step is given a thin adherent layer of sand mingled in acrylonitrile polymer powder. Thermal heating during rocket reentry orbit generates a skin layer of carbide. The carbide protects against flame temperature air, to prevent combustion of the underlying carbon foam structure. A variation is to make the acrylonitrile polymer as a latex paint and apply such paint to a screen form geometry.

Abstract: The present invention relates to a connecting apparatus used for connecting underground pipes and to a composition for preparing a foamed sheet for the same. Specifically, the present invention relates to a sheet composition for pipe connection which comprises 1 to 10 parts by weight of a masterbatch including low-density polyethylene, high-density polyethylene, a maleic anhydride graft copolymer, a metallocene polyethylene elastomer, a foaming agent, and an additive, based on 100 parts by weight of a base resin including low-density polyethylene, high-density polyethylene, a maleic anhydride graft copolymer, and a metallocene polyethylene elastomer. When using the composition according to the present invention, a non-foamed sheet is produced during melt extrusion, and a foamed sheet is obtained at a high temperature by laminating the non-foamed sheet with a heater line and applying electricity thereto. Therefore, the sheet composition can be fused and filled into a pipe.

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

Abstract: Provided are a composition for preparing expandable polypropylene carbonate and an expandable polypropylene carbonate prepared therefrom, and more particularly, to a composition for preparing expandable polypropylene carbonate capable of using supercritical carbon dioxide as a foaming agent and producing a foam having excellent moldability by using an appropriate foaming method. By using the composition according to the present invention, highly magnificated expandable polypropylene carbonate capable of having excellent thermal stability and dimensional stability can be prepared.

Abstract: A rock dusting composition composed of rock dust, e.g., limestone or other mineral dust, water, pumping aid, and polymer, e.g., acrylamide homopolymers, acrylamide copolymers, and combinations thereof, and a method for applying the composition to the surface of a mine. The composition has a water content and a polymer content sufficient to allow the polymer to (i) disperse water molecules within the composition and, upon drying of the composition, (ii) dissipate forming void spaces in the dried composition. The composition is useful for suppressing propagation of a flame and/or fire caused by ignition of coal dust and/or gas within a coal mine.

Abstract: The invention is related to an elastomer composition comprising an elastomeric polymer comprising ethylene and ?-olefin derived units, a curing package and a blowing agent wherein the blowing agent comprises a compound containing water of crystallization. The invention also relates to a process for the manufacture of a foamed article comprising the steps of preparing an elastomeric composition, shaping, foaming and curing the elastomeric composition. The invention further relates to a foamed article.

Abstract: The invention relates to a method of preparing a composite or porous composite used as a biodegradable scaffold, the composite prepared therefrom and the use of the composite. In particular, the composite is a calcium sulfate-polylactic acid composite or porous composite and the composite can be especially used as an in situ pore forming scaffold.

Abstract: Porous three-dimensional networks of polyimide and porous three-dimensional networks of carbon and methods of their manufacture are described. For example, polyimide aerogels are prepared by mixing a dianhydride and a diisocyanate in a solvent comprising a pyrrolidone and acetonitrile at room temperature to form a sol-gel material and supercritically drying the sol-gel material to form the polyimide aerogel. Porous three-dimensional polyimide networks, such as polyimide aerogels, may also exhibit a fibrous morphology. Having a porous three-dimensional polyimide network undergo an additional step of pyrolysis may result in the three dimensional network being converted to a purely carbon skeleton, yielding a porous three-dimensional carbon network. The carbon network, having been derived from a fibrous polyimide network, may also exhibit a fibrous morphology.

Abstract: A sealing material is provided, which maintains excellent sealing property for a long period of time. The sealing material of the invention is characterized by being prepared by vulcanizing and foaming a mixture containing a rubber component containing a copolymer rubber of ethylene, an ?-olefin having 3 or more carbon atoms, and a conjugated diene, a vulcanizing agent, and a blowing agent, wherein the mixture contains a thermoplastic resin having a melting point of 80° C. or less.

Abstract: A process for making an extruded foamable composition is disclosed where the foamable composition includes a partially-crystalline melt processible perfluoropolymer and a foam nucleating package. The process makes a foamed product having uniform foam cell size at high speeds without loss of product quality.

Abstract: This disclosure relates to a polyurethane resin composition for a mounting pad, including a polyurethane resin, C9-15 alkyl benzene sulfonic acid or a salt thereof, and a DMF solvent, and a polyurethane mounting pad using the same, whereby long and large pores may be uniformly formed thereinside to provide a mounting pad having low hardness, excellent compressibility, and a high compression modulus.

Abstract: The invention relates to a foamed fluoropolymer, preferably a polyvinylidene fluoride (PVDF) structure, such as from Kynar® resins. The foamed structure is continuous self-supporting, sized, and has a dense skin. The foamed structure is manufactured in a process using foaming agents and nucleating agents. The structure is sized into a specific shape during the manufacturing process—requiring a good melt viscosity of the PVDF foam. In one process, a master batch containing the nucleating agent is used. The foamed article could be a sheet, film, profile, tube, pipe, article, rod foam-core structure, or other self-supporting shape. Foamed tubes, pipes, rods, sheets and conduit are especially useful. The foamed structure of the invention provides added value by being lighter weight, more flexible, and more impact resistant than a comparable non-foamed PVDF structure. It also has increased hysteresis, increased insulation properties, reduced dielectric constant, and increased compressibility.

Abstract: In a flame-retarded foamable styrene-based resin composition comprising a bromine-containing flame retardant, the flame retardant is a mixture of (a) an organic bromine-containing compound having a 2,3-dibromopropyl group or an organic bromine-containing compound having a bromine content of greater than 60 wt % in which all bromine atoms are attached to a benzene ring, and (b) an organic bromine compound having a 2,3-dibromo-2-alkylpropyl group. The composition comprises this mixture in amount from 0.5 to 10 parts by weight per 100 parts by weight of the styrene-based resin. The composition exhibits high flame retardant and heat stabilizing effects yet allowing recycling.

Abstract: Provided herein are bimodal porous polymer microspheres comprising macropores and micropores. Also provided herein are methods and apparatus for fabrication such microspheres. Further provided herein are methods of using bimodal porous polymer microspheres.

Abstract: A porous polybenzimidazole (PBI) particulate resin is disclosed. This resin is easily dissolved at ambient temperatures and pressures. The resin is made by: dissolving a virgin PBI resin in a highly polar solvent; precipitating the dissolved PBI in a bath; and drying the precipitated PBI, the dried precipitated PBI being porous. The porous PBI resin may be dissolved by: mixing a porous PBI resin with a highly polar solvent at ambient temperatures and pressures to form a solution.

Abstract: The density of rigid foamed articles made by the thermal decomposition of a blowing agent in a vinyl chloride polymer is reduced by the use of a tin based blowing agent activator(s). The tin based activator also reduces the activation temperature of a chemical blowing agent, allowing for more optimal evolution of gas during plastic processing. Dibutyl tin oxide or tin maleates are superior activators of vinyl chloride polymer blowing agents.

Abstract: The invention provides a composition comprising an ethylene/?-olefin/non-conjugated diene interpolymer, which has the following properties: an Mz(abs)/Mz(Conv) value greater than 1.35; an Mz(BB)/Mw(abs) value greater than 1.6; and a non-conjugated diene content less than 10 weight percent, based on the total weight of the interpolymer. The invention also provides a process for forming a crosslinked composition, said process comprising: (a) forming a polymeric admixture comprising at least the following: (A) an ethylene/?-olefin/non-conjugated diene copolymer rubber (B) which has the following properties: an Mz(abs)/Mz(Conv) value less than 1.3; an Mz(BB)/Mw(abs) value greater than 1.6, but less than 2.5; and an Mw(abs) value less than 350,000 g/mole; and (B) a coupling amount of (i) at least one poly(sulfonyl azide) or (ii) at least one peroxide; and (b) heating the resulting admixture to a temperature at least the decomposition temperature of the crosslinking agent.

Abstract: An EPDM foam is obtained by foaming a foam composition containing, based on 100 parts by weight of an ethylenepropylenediene rubber, 0.1 to 5 parts by weight of a vulcanizer, 0.1 to 10 parts by weight of a vulcanization accelerator, 1 to 30 parts by weight of a foaming agent, and a foaming auxiliary agent. The vulcanization accelerator contains a thiourea vulcanization accelerator, a thiazole vulcanization accelerator, a dithiocarbamate vulcanization accelerator, and a thiuram vulcanization accelerator such that a thiourea vulcanization accelerator/thiazole vulcanization accelerator/dithiocarbamate vulcanization accelerator/thiuram vulcanization accelerator weight ratio is in a range of 1 to 20/1 to 20/1 to 20/1 to 30.

Abstract: Provided is a modified blowing agent, wherein the surface of a blowing agent powder is coated with a metallic siloxylated compound. When the modified blowing agent is included in a polymer resin, dispersibility of the modified blowing agent is excellent in the polymer resin and fluidity of the polymer resin is improved in an extrusion molding machine and an injection molding machine, and thus productivity and processability can be improved. In addition, the foam that is formed using the polymer resin composition including the modified blowing agent has excellent tear strength, durability, and masking sound properties due to fine and uniform size of foam cells and increased number of foam cells per unit surface area.

Abstract: The present invention provides a vulcanized foamed rubber molded product which has surface smoothness equal to or higher than that of a non-foamed vulcanized rubber molded product, has excellent mechanical strength properties, compression set resistance and abrasion resistance and a non-foamed vulcanized rubber molded product which is superior in surface smoothness to a conventional non-foamed vulcanized rubber molded product and has excellent compression set resistance, mechanical strength properties and abrasion resistance, as well as a method of producing the same. The molded product of the present invention is characterized in that the amount of sulfur atoms present in the surface thereof is at least 1.2 times as high as the amount of sulfur atoms present in a cut face obtained by cutting the surface to a depth of 1.0 mm in the vertical direction.

Abstract: A carpet backing composition with increased frothablity and froth collapse which may include a binding amount of a polymeric binder, a filler, a thickener, and a foaming surfactant which includes at least one anionic surfactant selected from: linear and/or branched alkyl sulfates having an average 8 to 10 carbon atoms in the alkyl moiety, and linear and/or branched C8 to C10 alkyl sulfonates having an average 8 to 10 carbon atoms in the alkyl moiety.

Abstract: Use of high boiling hydrofluoroethers as nucleating agents in the production of a polymeric foam, in particular in the production of polyurethane foams and phenolic foams. Also, blowing agent compositions and foamable compositions comprising one or more high boiling hydrofluoroether nucleating agents and foams made using such blowing agent compositions and foamable compositions.

Abstract: A biodegradable polyurethane scaffold that includes a HDI trimer polyisocyanate and at least one polyol; wherein the density of said scaffold is from about 50 to about 250 kg m?3 and the porosity of the scaffold is greater than about 70 (vol %) and at least 50% of the pores are interconnected with another pore. The scaffolds of the present invention are injectable as polyurethane foams, and are useful in the field of tissue engineering.

Abstract: Filling foam composition capable of providing excellent rustproofing and also suppressing reduction of a foam ratio of the filling foam composition even when reusing unwanted parts thereof and inferior goods thereof; a foam filling member using the same filling foam composition; and a filling foam produced by foaming the filling foam composition. The filling foam composition is prepared by mixing foamable polymer, a foaming agent, and a basic oxide in such a mixing ratio that a ratio of the basic oxide can be in the range of 0.05-70 parts by weight per 100 parts by weight of foaming agent. The mounting member for the filling foam composition to be mounted in an internal space of a hollow member is produced by mounting a mounting member on the filling foam composition obtained. The filling foam is formed by fitting the foam filling member in the internal space of the hollow member and, then, foaming the filling foam composition by the application of heat.

Abstract: Filling foam composition capable of providing excellent rustproofing and also suppressing reduction of a foam ratio of the filling foam composition even when reusing unwanted parts thereof and inferior goods thereof; a foam filling member using the same filling foam composition; and a filling foam produced by foaming the filling foam composition. The filling foam composition is prepared by mixing foamable polymer, a foaming agent, and a basic oxide in such a mixing ratio that a ratio of the basic oxide can be in the range of 0.05-70 parts by weight per 100 parts by weight of foaming agent. The mounting member for the filling foam composition to be mounted in an internal space of a hollow member is produced by mounting a mounting member on the filling foam composition obtained. The filling foam is formed by fitting the foam filling member in the internal space of the hollow member and, then, foaming the filling foam composition by the application of heat.

Abstract: In an exemplary embodiment, the present method includes the stops of providing a polymer resin to be processed: blending particulate boron nitride (BN) and a fluorine-containing polymer with said polymer resin to provide a resin blend: heating said resin blend to obtain a desired flowability value: and processing said resin blend into a desired shape.