MIXED VULCANIZATION ACCELERATOR COMPOSITION

摘要

PROBLEM TO BE SOLVED: To obtain a mixed vulcanization accelerator composition for EPDM without producing nitrosamine which is a chemical substance harmful to human bodies. SOLUTION: This mixed vulcanization accelerator composition comprises the following (1) to (4). (1) a thiazole vulcanization accelerator, (2) a dithiocarbamate vulcanization accelerator and/or a dithiophosphate vulcanization accelerator, (3) a guanidine vulcanization accelerator and (4) a zinc salt of acrylic acid and/or methacrylic acid.