abstract |
Provided is a rubber composition that improves the reaction efficiency of a silane coupling agent during kneading, suppresses the generation of bubbles, improves the wear resistance, and reduces the rolling resistance. A rubber composition containing silica, wherein a silane coupling agent is 3 to 15 parts by weight with respect to 100 parts by weight of silica, and a potassium salt is 0.3 to 1 part with respect to 100 parts by weight of silica. A rubber composition containing 45 parts by weight. [Selection figure] None |