Patent ID: 8110634

Claim:
A vulcanizable rubber composition comprising a diene rubber and sulphur wherein said composition is stabilized by incorporating a stabilizer/accelerator material selected from a group of 4-substituted 2-benzothiazole sulfenamides of the general formula I, wherein R 1 and R 2 can be the same or different and are chosen from the group consisting of hydrogen, halogen, nitro, hydroxy, C 1 -C 12 alkyl, C 1 -C 12 alkoxyl and C 1 -C 12 aralkyl; R 3 and R 4 can be the same or different and are chosen from the group consisting of hydrogen, C 1 -C 12 alky, C 1 -C 12 cycloalkyl, C 1 -C 12 alkoxyl and C 1 -C 12 aralkyl; or R 3 and R 4 , together with the N they are attached to, form a ring, optionally substituted with O, Si, S, and P.