| abstract |
The purpose of the present invention is to provide a tire rubber composition that exhibits an excellent performance on ice and an excellent antiwear performance, and a studless tire that uses this tire rubber composition. The tire rubber composition according to the present invention contains 100 mass parts of a diene rubber, 30 to 100 mass parts of carbon black and/or a white filler, 1 to 20 mass parts of three-dimensionally crosslinked silicone fine particles having an average particle diameter of 5 to 500 μm, 0.1 to 10 mass parts of a nonionic surfactant, and 1 to 20 mass parts of a thermally expandable microcapsule. |