| 摘要 |
<p>A rubber composition comprising 100 parts by weight of a rubber component which comprises a styrene-butadiene copolymer rubber alone or a blend of at least 70 % by weight of the above rubber with another conjugated diene rubber and wherein the total styrene content is 30-40 % by weight based on the total rubber content, 10-60 parts by weight of silica, 1-20 % by weight, based on the silica, of a specified silane coupling agent, i.e., a bis(alkoxysilylalkyl) polysulfide having a polysulfide structure specified in sulfur distribution, and carbon black in such an amount that the total content of the silica and the carbon black ranges from 60 to 130 parts by weight; and pneumatic tires produced therefrom and excellent in wet skid resistance, the grip of dry road surface, and also abrasion resistance.</p> |
