| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition for a tread that exhibits an enhanced balance among abrasion resistance, chipping/cutting resistance and a heat build-up property of a tread, particularly a rubber composition suitable for a tread for a tire for a high load, and to provide a rubber composition for a tread exhibiting an enhanced balance among on-ice performances, elongation properties and hardness of a tread, particularly a rubber composition suitable for a tread for a studless tire and further for a studless tire for a high load. SOLUTION: The rubber composition for a tread comprises 10-30 wt.% of a butadiene rubber, having dispersed therein a syndiotactic 1,2-polybutadiene having an average primary particle size of at most 100 nm, in the rubber component and carbon black having a nitrogen adsorption specific surface area of 120-170 m<SP>2</SP>/g. COPYRIGHT: (C)2007,JPO&INPIT
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