发明名称 |
LUFTFYLT HELAARSDEKK |
摘要 |
A pneumatic tire has a tread composed of a rubber composition which includes a rubber component and particulates of a crystalline syndiotactic-1,2-polybutadiene resin. The particulates have an average particle diameter of 10 to 500 mu m, and the melting point of said crystalline syndiotactic-1,2-polybutadiene resin is not less than 110 DEG C. The compounding ratio of the resin is 5 to 60 parts by weight relative to 100 parts by weight of the rubber composition. A matrix portion of the tread rubber other than the above particulates is preferably a foamed rubber. The particulates may be resin-composite particulates composed of the crystalline syndiotactic-1,2-polybutadiene resin having a melting point of not less than 110 DEG C and a carbon black, wherein the compounding ratio of the resin-composite particulates is 5 to 60 parts by weight relative to 100 parts by weight of the rubber component, and the resin and the carbon black satisfy the following inequalities: 250 < X + 10 Y < 1300 in which X is nitrogen-adsorption specific surface area (unit: m<2>g) and Y is compounding ratio of the carbon black (parts by weight) relative to 100 parts by weight of the resin. |
申请公布号 |
NO922180(D0) |
申请公布日期 |
1992.06.02 |
申请号 |
NO19920002180 |
申请日期 |
1992.06.02 |
申请人 |
BRIDGESTONE CORPORATION |
发明人 |
MORIMOTO, YOSHIYUKI;YAMAUCHI, KOJI;IWAFUNE, SEIICHIRO;HAMADA, TATSURO;AOYAMA, MASANORI;YAMANAKA, EIJI |
分类号 |
B60C1/00;C08L21/00;(IPC1-7):B60C/ |
主分类号 |
B60C1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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