Rubber composition for tires.

摘要

A rubber composition for tires having low rolling resistance and high wet skid resistance, breakage strength and wear resistance comprises a rubber component containing at least 20 parts by weight of a high vinyl butadiene-styrene copolymer rubber obtained by randomly copolymerizing styrene with 1,3-butadiene, and containing 3-30% by weight of bonded styrene and 60-95% by weight of 1,2-bonds in the butadiene units, and further containing metal-butadienyl bonds in its main chain in a weight fraction of at least 20% by weight.