Patent ID: 11965077
Assignee: SUMITOMO RIKO COMPANY LIMITED
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  F | IPC C  F

Claim 0:
1. An anti-vibration rubber composition, comprising: a polymer comprising component (A); and components (B) to (E), wherein the mixing ratio of the components (B) and (C) is in a range of (B)/(C)=99/1 to 96/4 in weight ratio,
(A) diene rubber;
(B) silica;
(C) carbon black;
(D) silane coupling agent;
(E) dihydrazide compound represented by general formula (1),, in general formula (1), R represents an alkylene group having 1 to 30 carbon atoms, a cycloalkylene group having 1 to 30 carbon atoms, or a phenylene group,
the diene rubber containing a natural rubber (NR) as a main component is used, wherein the main component is 80% by weight or more of the diene rubber (A) is the natural rubber,
a content of the silica (B) is 20 to 60 parts by weight with respect to 100 parts by weight of the diene rubber (A),
a content of the carbon black (C) is 0.1 to 5 parts by weight with respect to 100 parts by weight of the diene rubber (A).