Sulfenamide, vulcanization accelerator containing the sulfenamide for rubber, and process for producing the vulcanization accelerator

摘要

A sulfenamide vulcanization accelerator is provided that acts satisfactorily slowly on a vulcanization reaction, produces no carcinogenic nitrosamine, and is free from environmental hygiene problems such as bioaccumulation. Also provided is an N-alkyl-N-t-butylbenzothiazole-2-sulfenamide represented by formula [I]. The vulcanization accelerator is a vulcanization accelerator for rubber, containing this compound. Furthermore provided is a process for producing the vulcanization accelerator. wherein R represents methyl, ethyl, n-propyl, or n-butyl.