Rubber composition for use in tire

Details Rubber composition for use in tire Rubber composition for use in tire

1987-07-06

1988-05-03

Schofer, Joseph L.

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

Synthetic resins

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

5253322, 5253329, 5253591, 525371, C08F 842

Patent

active

047421240

ABSTRACT:
YA rubber composition for use in tire having improved rolling resistance, wet skid resistance and processability is disclosed, which comprises at least 20% by weight of a conjugated diolefin-vinyl-substituted aromatic hydrocarbon random copolymer. This random copolymer is produced by copolymerization with a particular initiator and coupling with a particular coupling agent, and has a content of vinyl-substituted aromatic hydrocarbon of 3-60% by weight, a content of tin bonded to copolymer of not less than 400 ppm and a Mooney viscosity (ML.sub.1+4.sup.100.degree.C.) of 20-200.

REFERENCES:
patent: 4397994 (1983-08-01), Takeuchi et al.
patent: 4482678 (1984-11-01), Furukawa et al.
patent: 4515922 (1985-05-01), Sakakibara et al.
patent: 4523618 (1985-06-01), Yamamoto et al.
patent: 4526934 (1985-07-01), Oshima et al.
patent: 4550135 (1985-10-01), Iwama et al.

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