| abstract |
[Problem] To promote vulcanization having a vulcanization delay effect equivalent to or better than that of DCBS without using a vulcanization retarder such as CTP, which may cause problems such as degradation of rubber properties and blooming after vulcanization. To provide a rubber composition using an agent, having good workability while preventing deterioration of rubber physical properties, and capable of realizing higher elasticity and excellent low heat generation. The rubber composition of the present invention comprises a rubber component, a sulfenamide vulcanization accelerator represented by formula (I), a bismaleide derivative represented by formula (II), and sulfur. It is characterized by. [Selection figure] None |