Rubber article having oil resistance and resistance to...

C - Chemistry – Metallurgy – 08 – K

Patent

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402/257, 402/298

C08K 5/01 (2006.01) C08C 19/02 (2006.01) C08J 5/00 (2006.01) C08L 9/02 (2006.01) C08L 13/00 (2006.01) C08L 15/00 (2006.01) E21B 33/12 (2006.01)

Patent

CA 1242047

Abstract of the Disclosure A rubber article with excellent oil resistance and aging resistance to be used in contact with a poly- olefin oil or a lubricating oil containing a polyolefin oil, at least the surface of the rubber article being contacted with said oil, said rubber article being composed substantially of a vulcanized product of a co- polymer rubber comprising (1) 10 to 60% by weight of units derived from an unsaturated nitrile, (2) 0 to 30% by weight of units derived from a conjugated diene, and (3) 90 to 10% by weight of units derived from an ethyle- nically unsaturated monomer other than the unsaturated nitrile and/or units resulting from the hydrogenation of units derived from a conjugated diene.

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