N-chlorothiocarboxylic acid amide/imide-modified terpolymers

Claim 1

A chemically modified rubbery terpolymer which comprises the admixture product of a rubbery terpolymer of ethylene, α-olefin containing 3 to 6 carbon atoms and a non-conjugated diene containing 6 to 12 carbon atoms with at least one compound selected from N-chlorothio-carboxylic acid amides and imides of the formulae: ##STR3##where R 1 and R 2 are radicals which can be individually selected from alkyl, cycloalkyl, benzyl, and phenyl radicals, where R 1 can additionally be selected from hydrogen, where the aromatic rings of said phenyl and benzyl radicals may be substituted with one or two radicals selected from alkyl and chloro radicals, where R 1 and R 2 may be taken together to represent an alkylene radical of 3 to 5 carbon atoms and where R 3 may be an alkylene radical of 2-4 carbon atoms, a 1,2-cycloalkylene radical of 6-8 carbon atoms, or an orthophenylene radical of 6 to 8 carbon atoms.