| abstract |
Provided are a rubber composition for a tire capable of producing a tire excellent in performance on ice, excellent in wet performance and rolling resistance, and a studless tire using the same. 100 parts by mass of a diene rubber (A); 30 to 100 parts by mass of carbon black and / or white filler (B), Crosslinkable oligomer or polymer (C) 0.3-30 parts by mass, One molecule of the reactive functional group to which the crosslinkable oligomer or polymer (C) is bonded through a covalent bond selected from the group consisting of urethane bond, urea bond, amide bond, imino bond, ketone bond and ester bond A polyether-based polymer or copolymer having at least one per The tire in which the reactive functional group is any functional group selected from the group consisting of a hydroxyl group, a silane functional group, an isocyanate group, a (meth) acryloyl group, an allyl group, a carboxy group, an acid anhydride group, and an epoxy group. Rubber composition. [Selection figure] None |