RUBBER COMPOSITION AND PNEUMATIC TIRE

摘要

PROBLEM TO BE SOLVED: To provide a rubber composition improved in heat generating property and cutting resistance after vulcanization without damaging processability before vulcanization. SOLUTION: The rubber composition comprises: (A) 100 parts by weight of diene rubber; (B-i) 10 to 40 parts by weight of silica as a reinforcing filler; (C) 1.0 to less than 3.0 parts by weight of sulfur; and (D) 0.1 to 0.3 part by weight of cobalt acetylacetonate. COPYRIGHT: (C)2009,JPO&INPIT