3264-02-6Relevant articles and documents
Synthesis method of vulcanization accelerator CBBS (N-cyclohexyl-bis(benzothiazole) sulfonamide)
-
Paragraph 0007; 0019; 0020; 0021; 0022; 0023; 0024-0029, (2017/07/20)
The invention discloses a synthesis method of vulcanization accelerator CBBS (N-cyclohexyl-bis(benzothiazole) sulfonamide). The synthesis method comprises steps as follows: anhydride and an organic solvent are mixed, an accelerator N-cyclohexylbenzothiazole-2-sulphenamide is added to the mixed liquid in batches for a synthesis reaction, and CBBS is produced; after the reaction, an alkaline water solution is added to the mixture until the pH is neutral, the mixture is heated, the organic solvent is recovered, the remaining mixture is filtered after recovery is completed, a filter cake is washed and dried, and the vulcanization accelerator CBBS is obtained. The synthesis process is simple, equipment investment is low, and the obtained CBBS product does not produce nitrosamine which is a carcinogenic substance during application, has longer scorching time and slow vulcanization speed and can effectively replace toxic and harmful accelerators such as NOBS, DZ and the like.