| 摘要 |
This invention relates to a rubber composition capable of highly improving a steering stability without deteriorating fracture characteristics and wear resistance of a tire by using in a tread rubber of the tire, and more particularly to a rubber composition comprising 10 to 200 parts by mass of a component (B): an aromatic vinyl compound-conjugated diene compound copolymer or a conjugated diene compound polymer having a weight average molecular weight as measured through a gel permeation chromatography and converted to polystyrene of 1.0x103 to 2.0x105 based on 100 parts by mass of a component (A): an aromatic vinyl compound-conjugated diene compound copolymer or a conjugated diene compound polymer having a weight average molecular weight as measured through a gel permeation chromatography and converted to polystyrene of 3.0x105 to 3.0x106, wherein not less than 10% but less than 60% of an unsaturated bond in a conjugated diene compound portion of the component (A) is hydrogenated. |
