Polyepichlorohydrin, 2,3-dimercapto(pyrazine or quinoxaline) and hydrotalcite

摘要

A vulcanizable composition which contains (a) 100 parts by weight of an epichlorohydrin polymer; (b) 0.1 to 10 parts by weight of a 2,3-dimercaptopyrazine derivative or a 2,3-dimercaptoquinoxaline derivative; and (c) 1 to 10 parts by weight of a hydrotalcite compound, has the high vulcanization rate and the excellent long time storage stability.