| abstract |
(57) [Summary] [Problem] To provide a rubber composition for a tire that improves wet grip performance without impairing the breaking strength of the tire. Block copolymer (A) composed of a polymer block mainly composed of: and a tackifier resin (B) And a rubber composition comprising at least one rubber component (C) selected from the group consisting of natural rubber, diene-based polymer rubber, and olefin-based polymer rubber. Preferably, the rubber component (C) is crosslinked. Achieved by the composition |