hardened or uncured chlorinated poly ethylene composition and method for tempering of a uncured chlorinated poly ethylenediaminopolypropylene lens

摘要

A cured or uncured chlorinated polyethylene composition free from hexamethylphosphoric triamide complex comprising (A) chlorinated polyethylene, (B) a mercaptotriazine as cross-linking agent, (C) a cross- linking accelerator selected from the group consisting of specified dithiocarbamic compounds, secondary and tertiary amines, and the carboxylates, mercaptothiazole salts, dithiocarbamates and dithiophosphates of said secondary and tertiary amines and the benzothiazylsulfenamides of said secondary amines, and (D) an acid acceptor of metal compounds; as well as a process for curing uncured chlorinated polyethylene which comprises heating same in the absence of hexamethylphosphoric triamide complex in the presence of (B), (C) and (D) at a temperature of about 120 to about 200 C.