发明名称 |
Rubber compositions for bead apex, sidewall packing, base tread, breaker cushion, steel cord topping, strip adjacent to steel cords, tie gum, and sidewall, and pneumatic tires |
摘要 |
The present invention provides a rubber composition that improves in terms of the fuel economy of a rubber composition containing an isoprene-based rubber and also offers favorable durability and favorable processability or adhesion to steel cords, and a pneumatic tire formed from the rubber composition. The present invention relates to a rubber composition for a bead apex, sidewall packing, base tread, or breaker cushion, including: a specific rubber component; a specific amount of a specific carbon black; a specific amount of sulfur; and a specific amount of a compound represented by formula (I) below. The present invention also relates to a rubber composition for a steel cord topping, strip adjacent to steel cords, or tie gum, including: a specific rubber component; a specific amount of a specific carbon black; a specific amount of an organic acid cobalt salt; and a specific amount of a compound represented by the formula (I). |
申请公布号 |
EP2730609(B1) |
申请公布日期 |
2015.09.09 |
申请号 |
EP20130191913 |
申请日期 |
2013.11.07 |
申请人 |
SUMITOMO RUBBER INDUSTRIES, LTD. |
发明人 |
MIYAZAKI, TATSUYA;NAKAMURA, MASANOBU |
分类号 |
C08L7/00;B60C1/00;C08K3/04;C08K5/09;C08K13/02 |
主分类号 |
C08L7/00 |
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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