COMPOSITION FOR VULCANIZING FLUORORUBBERS AND FLUORORUBBER MOLDINGS

摘要

A composition for vulcanizing fluororubbers, which comprises a fluororubber vulcanizable with an organic peroxide, such as an iodine-containing fluororubber, a polyfunctional unsaturated compound and an organic peroxide which forms a decomposition product containing not more than 2 mol/mol, preferably 0 mol/mol, in total of acetone and t-butanol under vulcanization temperature conditions, such as dicumyl peroxide. No secondary vulcanization is necessitated for this composition because the moldings obtained merely by primary vulcanization have practically sufficient characteristics, particularly thermal resistance.