| 发明名称 |
RUBBER COMPOSITION AND TIRE USING THE SAME |
| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition improving grip performance and resistance to fracture of a tire. SOLUTION: The rubber composition is obtained by compounding a high molecular-weight polymer (A) which is an aromatic vinyl compound-conjugated diene compound copolymer or a conjugated diene compound polymer having a weight-average molecular weight calculated in terms of polystyrene of 2.0×10<SP>5</SP>to 3.0×10<SP>6</SP>and a low molecular-weight polymer (B) which is an aromatic vinyl compound-conjugated diene compound copolymer having a weight-average molecular weight (a) calculated in terms of polystyrene of 2.0×10<SP>3</SP>to 1.0×10<SP>5</SP>and a peak molecular weight (b) after ozone decomposition calculated in terms of polystyrene of 5×10<SP>2</SP>to 5×10<SP>4</SP>and a molecular weight distribution of >1.40, wherein the weight-average molecular weight (a) calculated in terms of polystyrene and the peak molecular weight (b) satisfy the following formula: (a)≥(b). COPYRIGHT: (C)2011,JPO&INPIT |
| 申请公布号 |
JP2010260915(A) |
申请公布日期 |
2010.11.18 |
| 申请号 |
JP20090111374 |
申请日期 |
2009.04.30 |
| 申请人 |
BRIDGESTONE CORP |
发明人 |
MORI YOSHIKO;TANAKA TAKESHI;MATSUO NARUAKI |
| 分类号 |
C08L9/00;B60C1/00;C08K3/04;C08L53/02 |
主分类号 |
C08L9/00 |
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