Patent ID: 6576311
Filing Date: 2003-06-10
Classification: B32B,C08J,C08L,Y10T

Abstract:
A rubber laminate in which a rubber layer (1) made of rubber composition (A) is adhered by vulcanization to a rubber layer (2) containing another rubber composition (B):wherein (A) is a composition comprising 100 parts by weight of mixture and 0.1 to 15 parts by weight of a peroxide crosslinking agent admixed therewith, the mixture comprising 5 to 95 wt. % of a peroxide-crosslinkable fluororubber containing vinylidene fluoride copolymerized therein in a proportion of 45 to 88 mole % and having a number average molecular weight of 20,000 to 200,000, and 95 to 5 wt. % of an acrylic rubber containing 0.1 to 1.5 wt % of a bifunctional monomer copolymerized therein and having a functional group rendering the acrylic rubber peroxide-cocrosslinkable with the fluororubber and a functional group effecting the copolymerization of the monomer with an acrylic ester; and (B) is a composition comprising at least one of butadiene-acrylonitrile rubber, styrene-butadiene rubber, polychloroprene, ethylene-propylene termonomer copolymer, chlorinated polyethylene, chlorosulfonated polyethylene, silicone rubber, butyl rubber, epichlorohydrin rubber, fluororubber, acrylic rubber, ethylene-vinyl acetate copolymer, and &agr;,&bgr;-unsaturated nitrile-conjugated diene copolymer or its hydrogenated compound.