| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition for a tire tread, improving abrasion resistance, wet braking performance and embrittlement resistance at low temperature to high levels; and to provide a tire comprising the rubber composition. SOLUTION: The rubber composition for the tire tread comprises 100 pts.wt. rubber component comprising (a) 50-80 wt.% styrene-butadiene rubber containing 10-30 wt.% styrene component and 25-75 wt.% vinyl component, (b) 5-30 wt.% natural rubber and (c) 5-20 wt.% liquid polybutadiene rubber having a hydroxy group at the molecular terminal and≥1,500 number average molecular weight, and 50-120 pts.wt. silica. COPYRIGHT: (C)2006,JPO&NCIPI
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