| 发明名称 |
RUBBER COMPOSITION FOR SIDEWALL OR RIM STRIP OF TIRE, AND PNEUMATIC TIRE |
| 摘要 |
A rubber composition for a sidewall or rim strip of a tire comprises a diene rubber, a hydrocarbon type wax in which the difference (Tm3−Tm1) between a starting point (Tm1) and an end point (Tm3) of a heat absorption peak measured by a differential scanning calorimeter is 40° C. or less, and a processing aid comprising at least one selected from the group consisting of a fatty acid metal salt, a fatty acid amide and a fatty acid ester, in which the difference (Tm3−Tm1) between a starting point (Tm1) and an end point (Tm3) of a heat absorption peak measured by the differential scanning calorimeter is 50° C. or more. The rubber composition can suppress discoloration of a rubber surface due to a wax. |
| 申请公布号 |
US2016304706(A1) |
申请公布日期 |
2016.10.20 |
| 申请号 |
US201615096843 |
申请日期 |
2016.04.12 |
| 申请人 |
Toyo Tire & Rubber Co., Ltd. |
发明人 |
Kamada Shinsaku |
| 分类号 |
C08L9/00;C08L7/00 |
主分类号 |
C08L9/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A rubber composition for a sidewall or rim strip of a tire, comprising:
a diene rubber, a hydrocarbon type wax in which the difference (Tm3−Tm1) between a starting point (Tm1) and an end point (Tm3) of a heat absorption peak measured by a differential scanning calorimeter is 40° C. or less, and a processing aid comprising at least one selected from the group consisting of a fatty acid metal salt, a fatty acid amide, and a fatty acid ester, in which the difference (Tm3−Tm1) between a starting point (Tm1) and an end point (Tm3) of a heat absorption peak measured by the differential scanning calorimeter is 50° C. or more. |
| 地址 |
Osaka JP |
