| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition for a tire, which can produce the tire being excellent in traveling property on a wet road surface. SOLUTION: The rubber composition for the tire contains 100 pts.mass of a rubber component comprising 100 mass% of a diene-based rubber and 0.5-30 pts.mass of a polystyrene-hydrofined vinylpolyisoprene-polystyrene triblock copolymer based on 100 pts.mass of the rubber composition. Preferably, the rubber composition further contains 10-80 pts.mass of silica. Further, the polystyrene-hydrogenated vinylpolyisoprene-polystyrene triblock copolymer may be the copolymer in which a styrene content is 5-30 mass%. COPYRIGHT: (C)2010,JPO&INPIT |
