| 摘要 |
PROBLEM TO BE SOLVED: To provide a coupling agent for a rubber-carbon black suitable as raw material of a tire exhibiting excellent wet grip performance and low fuel consumption performance, and to provide a rubber composition for a tire.SOLUTION: There are provided a coupling agent for a rubber-carbon black containing a disulfide compound represented by the following formula as a component, and raw material for a tire capable of exhibiting excellent wet grip performance and low fuel consumption performance by using the rubber composition for a tire containing the coupling agent. (I), where Rrepresents a hydrogen atom or a linear or a branched alkyl group having 1 to 6 carbon atoms. |
