| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition for tire excellent in on-ice frictional performance and having little environmental load. SOLUTION: The rubber composition comprises 100 pts.wt. diene-based rubber containing 20-80 pts.wt. natural rubber or polyisoprene rubber and 20-80 pts.wt. polybutadiene rubber,≤25 pts.wt. terpene resin having≤100,000 mPa s kinematic viscosity at 40°C and≤1,000 mPa s kinematic viscosity at 100°C, 0.5-20 pts.wt. heat-expandable microcapsules and as necessary 0.5-20 pts.wt. expanded graphite. COPYRIGHT: (C)2006,JPO&NCIPI
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