Rubber composition containing modified polyisobutylene rubber

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

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524493, C08K 300

Patent

active

060605529

ABSTRACT:
A rubber composition containing a diene rubber and a modified polyisobutylene rubber having a functional group capable of reacting with a silanol group present on a surface of silica, together with a precipitated silica or a silica-adhered carbon black, having a tan .delta. at 60.degree. C. of 0.2 or more.

REFERENCES:
patent: 5475051 (1995-12-01), Machurat
patent: 5679728 (1997-10-01), Kawazura et al.

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