Modified ethylene-.alpha.-olefin-non-conjugated diene...

Details Modified ethylene-.alpha.-olefin-non-conjugated diene... Modified ethylene-.alpha.-olefin-non-conjugated diene...

C - Chemistry, Metallurgy

08

L

C08L 13/00 (2006.01) C08F 8/30 (2006.01) C08K 5/17 (2006.01) C08K 5/32 (2006.01)

Patent

CA 2060386

- 19 - ABSTRACT MODIFIED ETHYLENE-.alpha.-OLEFIN-NON-CONJUGATED DIENE COPOLYMER RUBBER COMPOSITION The present invention provides a modified ethylene-.alpha.-olefin-non-conjugated diene copolymer rubber composition which comprises an ethylene-a- olefin-non-conjugated diene copolymer rubber modified with an unsaturated carboxylic acid or a derivative thereof and at least one dinitroamine represented by the following formula (A): Image (A) wherein X represents a divalent chain aliphatic, cyclic aliphatic or aromatic group which may contain a halogen or oxygen, R1 represents a hydrogen atom, a chain aliphatic group, a cyclic aliphatic group or an aromatic group with a proviso that when both X and R1 represent a chain aliphatic group, nitrogen atoms may further link to each other through R1, and R2 and R3 each represents a hydrogen atom or an alkyl group of 1 - 12 carbon atoms and R2 and R3 may link to each other to form a ring. This composition is excellent in fatigue resistance against repeatedly applied deformation.

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