A method of producing a heat-resistant chlorine-containing crosslinked resin formed body, formed from: Step (a) of melt-mixing, to a base resin containing a chlorinated polyethylene and a polyvinyl chloride and a plasticizer, an organic peroxide, an inorganic filler, and a silane coupling agent, at a specific ratio, at a temperature equal to or higher than a decomposition temperature of the organic peroxide; Step (b) of mixing a silane masterbatch obtained in Step (a) and a silanol condensation catalyst; and Step (c) of crosslinking by bringing a formed body obtained by Step (b) into contact with water; wherein, in Step (a), from 5 to 55 mass % of the plasticizer is contained in 100 mass % of the base resin to be used in the reaction with the silane coupling agent; the formed body produced therefrom; a silane masterbatch and a mixture thereof; and a heat resistant product.

A fluororubber composition containing a ternary fluororubber polymer including vinylidene fluoride, perfluorovinyl ether and tetrafluoroethylene; a reaction product of silica-aluminum silicate with vinyl ethoxysilane; and hydrotalcite. The fluororubber composition does not substantially contain magnesium oxide and calcium hydroxide. The fluororubber composition contains 2 to 55 parts by weight of the reaction product of silica-aluminum silicate with vinyl ethoxysilane and 0.5 to 10 parts by weight of the hydrotalcite relative to 100 parts by weight of the ternary fluororubber polymer.

Polymer films having a surface with increased hydrophobicity or enhanced hydrophobicity or improved hydrophobicity or super-hydrophobicity; composite structures such as multilayer polymer sheets comprising the polymer films; methods and systems of making such polymer films; polymer blends from which to make such polymer films; masterbatches or masterbatch compositions useful for making such polymer blends; as well as methods and systems for making such polymer blends and such masterbatches or masterbatch compositions.

A release layer of a release film for producing a membrane electrode assembly of a polymer electrolyte fuel cell comprises a cyclic olefin polymer comprising an olefin unit having a C.sub.3-10alkyl group as a side chain thereof. The release layer may have a glass transition temperature of about 210 to 350 C. The release layer may have a transition point of a dynamic storage modulus E in a range from 50 to 100 C. An ion exchange layer comprising an ion exchange polymer may be laminated on the release layer of the release film by a roll-to-roll processing to produce a laminate. The release film may be separated from the laminate to give the membrane electrode assembly. The release film achieves improved production of a membrane electrode assembly (an electrolyte membrane and/or an electrode membrane) of a polymer electrolyte fuel cell.

A fluororubber composition containing a ternary fluororubber polymer including vinylidene fluoride, perfluorovinyl ether and tetrafluoroethylene; a reaction product of silica-aluminum silicate with vinyl ethoxysilane; and hydrotalcite. The fluororubber composition does not substantially contain magnesium oxide and calcium hydroxide. The fluororubber composition contains 2 to 55 parts by weight of the reaction product of silica-aluminum silicate with vinyl ethoxysilane and 0.5 to 10 parts by weight of the hydrotalcite relative to 100 parts by weight of the ternary fluororubber polymer.

A method of producing a heat-resistant chlorine-containing crosslinked resin formed body, formed from: Step (a) of melt-mixing, to a base resin containing a chlorinated polyethylene and a polyvinyl chloride and a plasticizer, an organic peroxide, an inorganic filler, and a silane coupling agent, at a specific ratio, at a temperature equal to or higher than a decomposition temperature of the organic peroxide; Step (b) of mixing a silane masterbatch obtained in Step (a) and a silanol condensation catalyst; and Step (c) of crosslinking by bringing a formed body obtained by Step (b) into contact with water; wherein, in Step (a), from 5 to 55 mass % of the plasticizer is contained in 100 mass % of the base resin to be used in the reaction with the silane coupling agent; the formed body produced therefrom; a silane masterbatch and a mixture thereof; and a heat resistant product.

A thermoplastic resin composition includes a component (A) in an amount of 1 to 20 parts by mass, a component (B) in an amount of 0 to 50 parts by mass, a component (C) in an amount of 40 to 90 parts by mass, and a component (D) wherein a total of the components (A) to (C) is 100 parts by mass, and an amount of the component (D) is 0.1 to 5 parts by mass per 100 parts by mass of the total of the components (A) to (C). Component (A) is a rubber-reinforced styrenic resin from polymerization, in the presence of a rubbery polymer, of a vinyl monomer, component (B) is a styrenic resin from polymerization of a vinyl monomer, component (C) is an aromatic polycarbonate resin, and component (D) is tetrafluoroethylene polymer having a number average molecular weight of 100,000 or more by the DSC method.