Rubber composition

Details Rubber composition Rubber composition

2005-09-06

2005-09-06

Wu, David W. (Department: 1713)

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...

C524S490000, C524S575000

Reexamination Certificate

active

06939910

ABSTRACT:
This invention provides a rubber composition comprising: a softening agent including a hydrogenated naphthenic oil of which an extract quantity of dimethylsulfoxide (DMSO) by IP 346 method is controlled to less than 3% by weight and blending at least one selected from a group of (1) a styrene-butadiene copolymer rubber with a bond styrene quantity in molecular of from 10% by weight to 60% by weight and with a vinyl bond quantity of the butadiene part of from 10% to 80% and (2) a butadiene rubber with a cis bond quantity of at least 30%. The rubber composition is superior in fracture characteristics, loss characteristic and wear resistance, and it is applicable to various rubber products, a pneumatic tire and, in particular, a tire tread.

REFERENCES:
patent: 4250067 (1981-02-01), Bresson
patent: 5504135 (1996-04-01), Ardrizzi et al.
patent: 5998513 (1999-12-01), Hashimoto
patent: 6103808 (2000-08-01), Hasimoto
patent: 6822043 (2004-11-01), Sohnen et al.
patent: 01138248 (1989-05-01), None

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