| 摘要 |
A rubber composition comprising 100 parts by weight in total of a rubber blend composed of at least 20 parts by weight of a copolymer having a glass transition point of -50 DEG C or above and prepared by copolymerizing 1,3-butadiene with an aromatic vinyl monomer and at most 8 parts by weight of another diene rubber, 10-80 parts by weight of a silica filler, 20-80 parts by weight of carbon black, and 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 pneumatic tires produced therefrom, excellent in the resistance to wet skid and abrasion, and reduced in rolling resistance. |
