| 摘要 |
PROBLEM TO BE SOLVED: To obtain a rubber composition for a tire tread, comprising a specific butadiene rubber composition composed of a rubber component not exhibiting crystallization and butadiene rubber exhibiting crystallization, largely reducing a modulus of elasticity especially at -30°C and remarkably improving performance on the ice while keeping general properties such as abrasion resistance, etc. SOLUTION: The rubber composition for a tire tread comprises (A) 10-90 parts wt. of a specific butadiene rubber composition (a)+(b) composed of butadiene rubber (a) exhibiting crystallization and at least≥1 wt.% of rubber component (b) not exhibiting crystallization and (B) 90-10 parts wt. of another diene-based rubber. COPYRIGHT: (C)2008,JPO&INPIT |
