| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition excellent in low heat generating property when made into vulcanized rubber, and excellent in adhesiveness to homogeneous or heterogeneous rubbers when made into vulcanized rubber.SOLUTION: There is provided a rubber composition containing 100 pts.mass of diene rubber containing polybutadiene rubber manufactured by using a rare earth element-based catalyst, 10 to 99 pts.mass of carbon black and 0.1 to 5.0 pts.mass of a dihydrazide compound. Preferably, 10 to 80 pts.mass of polybutadiene rubber is contained in 100 pts.mass of diene rubber. |
