Patent ID: 7939602

Claim:
A thermoplastic composition comprising: (a) an E/X dipolymer; wherein E represents copolymerized units of ethylene and X represents copolymerized units of a C 3 to C 8 α,β ethylenically unsaturated carboxylic acid; wherein the amount of X is about 14 to about 20 weight %, based on the total weight of the E/X dipolymer; and wherein at least a portion of the acid moieties of the E/X dipolymer are neutralized to form an ionomer comprising carboxylate moieties and zinc cations; (b) a polyamine, in an amount of about 15 to about 40 weight % based on the total weight of the thermoplastic composition, said polyamine having a molecular weight of greater than 500 Da; wherein the polyamine does not contain an ester moiety or a primary amine moiety; that the polyamine comprises at least three moieties that are tertiary amines or hindered secondary amines; and optionally (c) a filler.