Patent ID: 9598563
Date: 2017-03-21
CPC Classifications: B60C,C08F,C08J,C08K,C08L

Claim:
1. A rubber composition for a tire comprising: a diene rubber; and a composite silica comprising a block copolymer and silica, the block copolymer comprising a first block obtained by polymerizing a first monomer containing at least a (meth)acrylate having a hydroxyl group and a second block obtained by polymerizing at least one of a second monomer selected from the group consisting of styrene, derivatives thereof, and isoprene; the composite silica being produced in an organic solvent in the presence of the silica; and an amount of the composite silica being from 10 to 200 parts by mass per 100 parts by mass of the diene rubber, wherein an amount of the block copolymer is from 2 to 50 mass % in the composite silica.