| 摘要 |
PURPOSE: Provided is a rubber composition for tire hump strip, which keeps hardness, abrasion-resistance, rigidity, permanent compression set rate, and toughness and improves heat age resistance. CONSTITUTION: The rubber composition contains a natural rubber and a cis 1,4-polybutadiene rubber as raw rubber and conventional additives such as zinc oxide, stearic acid, carbon black, aromatic oil, sulfur, TBBS(N-t-butyl-2-benzothiazole sulfenamide), and etc, wherein the raw rubber contains 10-40pts.wt. of a syndiotactic 1,2-polybutadiene rubber. |
