Patent ID: 8524820

Claim:
A thermoplastic composition comprising: (a) an E/X/Y copolymer; wherein E represents copolymerized units of ethylene, X represents copolymerized units of a C 3 to C 8 α,β ethylenically unsaturated carboxylic acid, and Y represents copolymerized units of a softening comonomer; wherein the amount of X is about 2 to about 30 weight % and the amount of Y is 0.1 to about 45 weight %, based on the total weight of the E/X/Y copolymer; and wherein at least a portion of the acid moieties of the E/X/Y copolymer are neutralized to form an ionomer comprising carboxylate moieties and cations of one or more alkali metals, alkaline earth metals, or transition metals; (b) a polyamine, in an amount of about 10 to 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 and the polyamine comprises at least three moieties that are tertiary amines or hindered secondary amines; and optionally (c) a filler.