Rubber composition for tire tread

Details Rubber composition for tire tread Rubber composition for tire tread

C - Chemistry, Metallurgy

08

L

400/1126, 400/64

C08L 9/00 (2006.01) C08K 13/02 (2006.01) C08L 9/06 (2006.01)

Patent

CA 1252592

ABSTRACT A tire tread rubber composition which is improved in grip characteristic, steering stability characteristics and low-temperature characteristics, containing 15 to 50 parts by weight of a particular styrene-butadiene rubber obtained by solution polymerization containing polymer chains modified with trifunctional and/or tetrafunctional coupling agents, 50 to 85 parts by weight of at least one rubber selected from the group consisting of emulsion-polymerized styrene- butadiene rubber, natural rubber, synthetic polyisoprene rubber and butadiene rubber, at least one compound as plasticizer selected from the group consisting of a sebacic acid ester, an adipic acid ester and a fatty acid ester, and carbon black having an average particle size of not more than 30 mµ.

495023

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