| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition having high elasticity, good processability and low exothermic properties. SOLUTION: The rubber composition for tires comprises 10-30 pts.wt. (A) composition prepared by adding 20-120 pts.wt. metal salt of an ethylenically unsaturated carboxylic acid to 100 pts.wt. ethylenically unsaturated nitrile-conjugate diene-based copolymer containing≤30 wt.% conjugate diene unit, 10-30 pts.wt. (B)natural rubber, 20-60 pts.wt. (C) polybutadiene rubber, 15-45 pts.wt. (D) polybutadiene rubber containing syndiotactic 1, 2-polybutadiene and (E) 20-50 pts.wt. (i) carbon black and 1-4 pts.wt. (ii) organic peroxide based on 100 pts.wt. total amount of the rubber components. Pneumatic tires are produced by using the rubber composition in sidewall sections. COPYRIGHT: (C)2006,JPO&NCIPI
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