| 摘要 |
PURPOSE:To obtain a rubber composition, reduced in deterioration ratio of breaking characteristics after aging and improved in adhesion to metallic materials. CONSTITUTION:The rubber composition is obtained by blending 100 pts.wt. raw material rubber with >5 to 10 pts.wt. partial condensate of hexamethylolmelamine pentamethyl ether, 0.5-5 pts.wt. cresol resin, 2.5-5 pts.wt. sulfur and 0.1-0.8 pt.wt. organocobalt salt expressed in terms of cobalt element. |
