Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1997-09-19
2000-11-14
Seidleck, James J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523212, 524262, 524493, 524495, 1522091, C08K 554, B60C 1100
Patent
active
061471437
ABSTRACT:
The present invention provides a rubber composition and a pneumatic tire using the rubber composition. The rubber composition which comprises: a rubber component comprising a styrene-butadiene copolymer rubber or a blend of the styrene-butadiene copolymer rubber and another conjugated diene base rubber with the styrene-butadiene copolymer rubber being 70% by weight or more of the entire blend, and the entire content of styrene is 30 to 40% by weight of the entire rubber component; silica in an amount of 10 to 60 parts by weight per 100 parts by weight of the rubber component; a specific silane coupling agent, i.e., a bis(alkoxysilylalkyl)polysulfide having a polysulfide chain in which the distribution of sulfur is specified, in an amount of 1 to 20% by weight of the amount of silica; and carbon black, the sum of the amount of silica and carbon black being 60 to 130 parts by weight per 100 parts by weight of the rubber component. The pneumatic tire has excellent wet skid resistance, excellent grip performance on a dry road surface, and excellent abrasion resistance.
REFERENCES:
patent: 5605951 (1997-02-01), Sandstrom et al.
patent: 5674932 (1997-10-01), Agostini et al.
patent: 5780538 (1998-07-01), Cohen et al.
Araki Shunji
Yanagisawa Kazuhiro
Asinovsky Olga
Bridgestone Corporation
Seidleck James J.
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