Rubber composition and pneumatic tire using said rubber composit

Details Rubber composition and pneumatic tire using said rubber composit Rubber composition and pneumatic tire using said rubber composit

1997-09-19

2000-08-01

Zitomer, Fred

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

Synthetic resins

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

5253319, 5253326, 5253331, 525343, C08C 1925, C08C 1920, C08F 834, C08F 800

Patent

active

060968338

ABSTRACT:
The present invention provides a rubber composition and a pneumatic tire using the rubber composition. The rubber composition comprises a diene base rubber comprising at least 15% by weight of a polybutadiene rubber, silica in an amount of 10 to 80 parts by weight per 100 parts by weight of the diene base rubber and, in an amount of 1 to 20% by weight of the amount of silica, a specific silane coupling agent, i.e., a bis (alkoxysilylalkyl) polysulfide having a polysulfide chain in which the distribution of sulfur is specified. After curing, the cured rubber composition includes closed cells. Therefore, the rubber composition has a good processability at the time of manufacturing of a tire and a pneumatic tire using the same has excellent snow/ice grip performance and abrasion resistance.

REFERENCES:
patent: 3873489 (1975-03-01), Thurn
patent: 5788786 (1998-08-01), Yamauchi

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