| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire being excellent in on-ice performance, steering stability on a dry road surface and wear-resistance and having small rolling resistance. SOLUTION: The tire is characterized in that a rubber composition in which 5-50 pts.mass of a low molecular weight-modified conjugated diene-based polymer having a weight-average molecular weight before modification of 2×10<SP>3</SP>-15×10<SP>4</SP>and 20-200 pts.mass of a reinforcing filler are formulated relative to 100 pts.mass of a rubber matrix containing a modified natural rubber in which a polar group-containing hydrazide compound is added to at least one natural rubber raw material selected from the group consisting of a natural rubber, a natural rubber latex coagulum and a natural rubber cup lamp and the polar group-containing hydrazide compound is added to a natural rubber molecule in the natural rubber raw material and a high molecular weight-modified conjugated diene-based polymer having a weight-average molecular weight before modification of the value exceeding 15×10<SP>4</SP>-200×10<SP>4</SP>is used for any one of tire members. COPYRIGHT: (C)2011,JPO&INPIT
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