Cured or uncured chlorinated polyethylene composition and process for curing uncured chlorinated polyethylene

Claim 1

A curable chlorinated polyethylene composition free from hexamethylphosphoric triamide complex consisting essentially of: (A) chlorinated polyethylene having a chlorine content of about 20 to 50%, said polyethylene having a molecular weight of about 20,000 to 500,000; (B) a mercaptotriazine cross-linking agent of the formula ##STR15## wherein R is a member selected from the group consisting of a mercapto group, alkylamino groups with the alkyl moiety containing 1 to 8 carbon atoms, dialkylamine groups with the alkyl moiety containing 1 to 8 carbon atoms, cycloalkylamino groups with the cycloalkyl moiety containing 6 to 8 carbon atoms, dicycloalkylamino groups with the alkyl moiety containing 6 to 8 carbon atoms, arylamino groups, N-aryl-N-alkylamino groups with the alkyl moiety containing 1 to 8 carbon atoms and alkoxy groups containing 1 to 8 carbon atoms; (C) a cross-linking accelerator selected from the group consisting of secondary and tertiary amines of the formula ##STR16## wherein R 1 , R 2 and R 3 are each a member selected from the group consisting of hydrogen atoms, C 1 -C 12 alkyl groups, C 3 -C 12 cycloalkyl groups and C 7 -C 12 aralkyl groups, at least two of which R 1 -R 3 are members other than hydrogen, which R 1 and R 2 , or R 1 and R 2 , and R 2 and R 3 may taken together form a C 4 -C 6 hydrocarbon ring, which hydrocarbon ring may also contain a hetero atom and form a heterocyclic ring; as well as the carboxylates, mercaptothiazole salts, dithiocarbamates and dithiophosphates of said secondary and tertiary amines and the benzothiazylsulfenamides of said secondary amines; (D) an acid acceptor of metal compounds; and (E) an additive selected from the group consisting of a plasticizer and a reinforcing agent, the amount of said additive being about 0.1 to about 100 parts by weight per 100 parts by weight of the chlorinated polyethylene.