| 摘要 |
It is to provide a high-elasticity rubber composition having a good workability and an excellent crack resistance while preventing the deterioration of rubber properties by using a vulcanization accelerator having a retarding effect equal to or more than that of DCBS without using a retarder such as CTP possibly causing the deterioration of rubber properties after the vulcanization and problems such as blooming and the like. The rubber composition according to the invention is characterized by comprising a rubber component, a sulfenamide-based vulcanization accelerator represented by a formula (I), trans-polybutadiene and sulfur.
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