Rubber composition
AssigneeBridgestone Corporation
InventorYoshitaka Satou
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Abstract
It is to provide a high-elasticity rubber composition having a good workability while preventing the deterioration of rubber properties and capable of reducing rubber burning as far as possible 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 and capable of realizing a higher elasticity and excellent low heat-buildup. The rubber composition according to the invention is characterized by comprising a rubber component, a sulfenamide-based vulcanization accelerator represented by a formula (I), a bismaleimide derivative represented by a formula (II) and sulfur.
Claims10
A rubber composition comprising a rubber component, a sulfenamide-based vulcanization accelerator represented by a formula (I), a bismaleimide derivative represented by a formula (II) and sulfur:
- (in the formula (I), R1 is a tert-butyl group, R2 is a methyl group, ethyl group or n-propyl group, each of R3-R6 is a hydrogen atom, n is 0, and x is 1 or 2);
- (In the formula (II), A is bivalent aromatic residue having a carbon number of 6-30 and y and z are independently an integer of 0-3).
Dependencies are inferred from the claim text.