| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition for a sidewall reinforcing layer or a sidewall, which has sufficient thermal conductivity and low heat build-up property as well as excellent rigidity and run flat tire durability, and to provide a pneumatic tire such as a run flat tire, which has a sidewall reinforcing layer or a sidewall that is produced by using the rubber composition. SOLUTION: The rubber composition for a sidewall reinforcing layer or a sidewall includes a diene rubber and a coal-pitch based carbon fiber. COPYRIGHT: (C)2010,JPO&INPIT |
