Rubber composition and studless tire obtained by using the...

Details Rubber composition and studless tire obtained by using the... Rubber composition and studless tire obtained by using the...

2011-04-05

2011-04-05

Nutter, Nathan M (Department: 1765)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

active

07919560

ABSTRACT:
The object of the present invention is to provide a rubber composition suitable for a studless tire, which can inhibit rubber hardness increase with time and reveals excellent performance on ice and snow for a long time. The present invention relates to a rubber composition comprising 1 to 60 parts by weight of hydrogenized liquid polybutadiene based on 100 parts by weight of a rubber component containing at least 80% by weight of a natural rubber and a butadiene rubber, wherein a peak temperature of tan δ is at most 45° C. and rubber hardness at 0° C. is at most 64.

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patent: WO-00/69928 (2000-11-01), None
Isobe C. et al., Database WPI Week 200661, XP-00250300.

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