Hydrogenated copolymer rubber, rubber composition comprising...

Details Hydrogenated copolymer rubber, rubber composition comprising... Hydrogenated copolymer rubber, rubber composition comprising...

C - Chemistry, Metallurgy

08

F

402/399, 400/505

C08F 236/04 (2006.01) C08C 19/02 (2006.01) C08F 8/04 (2006.01) C08L 9/00 (2006.01)

Patent

CA 2001005

ABSTRACT OF THE DISCLOSURE A hydrogenated copolymer rubber which is a hydrogenation product of a random copolymer rubber consisting of: (A) 30-70 mole % of a unit derived from at least one monomer selected from the group consisting of alkyl acrylates and alkoxy-substituted alkyl acrylates, (B) 20-70 mole % of a unit derived from at least one conjugated diene, and (C) 0-10 mole % of a unit derived from at least one other ethylenically unsaturated compound copolymerizable with the components (A) and (B) [(A) + (B) + (C) = 100 mole %] wherein at least 90% of the double bonds of the conjugated diene unit is hydro- genated; a crosslinkable rubber composition comprising said hydrogenated copolymer rubber and a crosslinking agent; and a thermoplastic polymer comprising said hydrogenated copolymer rubber and a thermoplastic resin. These rubbers and compositions are superior in low-temperature resistance, heat resistance, ozone resistance, mechanical strengths, compression set, impact resilience and oil resistance.

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