| 摘要 |
<p>A rubber composition which contains at least 20 wt % of a block copolymer composed of two kinds of blocks with specific structures and obtained by copolymerizing an aromatic vinyl compound with a conjugated diene compound in a hydrocarbon solvent using an organolithium initiator, or its branched polymer. This composition has totally improved properties in comparison with prior art compositions with respect to wet skid resistance, rolling resistance, and ice skid resistance, and is used for fuel-saving tire tread.</p> |
