Golf balls containing ionomers and polyamines or tertiary polyamides
AssigneeE. I. Du Pont de Nemours and Company
InventorsPeter A. Morken, Charles John Talkowski
Life of this patent
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Abstract
Provided herein are compositions comprising an ionomer and a polyamine or a tertiary polyamide. The polyamine and the tertiary polyamide have a molecular weight of greater than 500 Da and do not contain an ester moiety or a primary amine moiety. The polyamine comprises at least three moieties that are tertiary amines or hindered secondary amines, and the polyamide comprises tertiary amide moieties and no secondary or primary amide moieties. The compositions may optionally include a filler. Further provided are articles such as golf balls and films containing these compositions.
Claims20
A thermoplastic composition comprising:
- (a) an E/X/Y copolymer;
- wherein E represents copolymerized units of ethylene, X represents copolymerized units of a C3 to C8 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.
Dependencies are inferred from the claim text.