Rubber composition for tire

Abstract

A tread assuring less temperature dependency of on-ice performance and good wet grip performance and a studless tire composed of the rubber composition includes a rubber component comprising an isoprene rubber, a terpene resin and a branched conjugated diene copolymer, wherein the branched conjugated diene copolymer is prepared by copolymerizing a branched conjugated diene compound represented by the general formula (1): wherein R1 is an aliphatic hydrocarbon having 6 to 11 carbon atoms and a conjugated diene compound represented by the general formula (2): R2 and R3 are the same or different and each is a hydrogen atom, an aliphatic hydrocarbon group having 1 to 3 carbon atoms or a halogen atom, and a copolymerization ratio of the branched conjugated diene compound (1) is 1 to 99% by weight and a copolymerization ratio of the conjugated diene compound (2) is 1 to 99% by weight.

Dependencies are inferred from the claim text.