Double-layered rubber laminate

U.S. Patent Number: 5306558

Abstract: An improved double-layered rubber laminate is proposed, which is an integral body consisting of a first layer of an organopolysiloxane-based rubber composition and a second layer of an acrylic rubber-based composition. When the acrylic rubber in the latter composition is not a conventional acrylic rubber but a copolymeric rubber of a (meth)acrylate ester monomer and an organosilicon monomer having, in a molecule, at least one silicon-bonded vinyl group and an ethylenically unsaturated group other than silicon-bonded vinyl groups, such as 3-methacryloxypropyl, very firm bonding can be obtained between the layers by the co-vulcanization of the laminated layers to exhibit very high resistance against delamination.

Inventors: Takahashi; Masaharu (Gunma, JP); Nakamura; Tsutomu (Gunma, JP)

Assignee: Shin-Etsu Chemical Co., Ltd. (Tokyo, JP)

Application Number: 08/032,588

Issued: 1994-04-26

Expired: 2006-04-26

Classes: 428/331 ; 428/323; 428/447; 428/451

Field of search: 428/447,451,323,331

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