发明名称 |
RUBBER COMPOSITION FOR TIRE, AND PNEUMATIC TIRE |
摘要 |
Provided are a rubber composition for a tire which achieves a balanced improvement in tensile properties at break and fuel economy while providing excellent conductivity; and a pneumatic tire including the rubber composition. The present invention relates to a rubber composition for a tire, including: a rubber component; a carbon black having a nitrogen adsorption specific surface area of 20 to 110 m2/g and a DBP oil absorption of 60 to 130 ml/100 g; and a conductive carbon black having a nitrogen adsorption specific surface area of 900 m2/g or larger, a DBP oil absorption of 300 ml/100 g or more, and a volatile content of 0.8% by mass or more, the rubber composition containing 0.1 to 3 parts by mass of the conductive carbon black per 100 parts by mass of the rubber component. |
申请公布号 |
US2014326928(A1) |
申请公布日期 |
2014.11.06 |
申请号 |
US201414266899 |
申请日期 |
2014.05.01 |
申请人 |
SUMITOMO RUBBER INDUSTRIES, LTD. |
发明人 |
KITAGO Ryota;ISHINO Soh;YAMANA Ayuko |
分类号 |
H01B1/24 |
主分类号 |
H01B1/24 |
代理机构 |
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代理人 |
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主权项 |
1. A pneumatic tire, comprising a rubberized carcass cord component comprising a rubber composition for a carcass cord topping, the rubber composition comprising:
a rubber component; a carbon black having a nitrogen adsorption specific surface area of 20 to 110 m2/g and a DBP oil absorption of 60 to 130 ml/100 g; and a conductive carbon black having a nitrogen adsorption specific surface area of 900 m2/g or larger, a DBP oil absorption of 300 ml/100 g or more, and a volatile content of 0.8% by mass or more, the rubber composition comprising 0.1 to 3 parts by mass of the conductive carbon black per 100 parts by mass of the rubber component. |
地址 |
Kobe-shi JP |