Patent ID: 8193283

Claim:
A golf ball having a cover, wherein the cover comprises a thermoplastic composition that includes: (a) at least one E/X/Y copolymer having a weight average molecular weight (M w ) of from about 80,000 to about 500,000 obtained by the copolymerization of comonomers E, X, and Y wherein E is ethylene, X is a C 3 to C 8 α,β-ethylenically unsaturated carboxylic acid, and Y is an alkyl acrylate or an alkyl methacrylate softening comonomer wherein the alkyl groups have from 1 to 8 carbon atoms, wherein X is present in an amount of from about 2 to about 30 wt. % of the E/X/Y copolymer, and Y is present in an amount of from about 17 to about 35 wt. % of the E/X/Y copolymer; (b) one or more E/acrylic acid and/or E/methacrylic acid copolymers having a weight average molecular weight of from about 2,000 to about 30,000 and having from about 3 to about 20 wt. % acrylic acid and/or methacrylic acid present based on the weight of (b), the copolymer present in the composition in an amount of from about 5 to about 30 wt. % based on the combined weight of (a)+(b); and wherein the thermoplastic composition is at least partially neutralized by one or more alkali metal, transition metal, or alkaline earth metal ionic.