Patent ID: 7059977

Claim:
A golf ball comprising a core and a cover of one or more layers enclosing the core, wherein at least one layer of the cover is formed primarily of a mixture comprising a blend of (a) an ionomer resin in the form of an alkali metal-neutralized ethylene-acrylic acid copolymer and (b) an olefin-unsaturated carboxylic acid copolymer or an olefin-unsaturated carboxylic acid-unsaturated carboxylate copolymer in a weight ratio (a)/(b) of from 99/1 to 85/15, and (c) an olefin based thermoplastic elastomer having soft segments and hard segments, the blend and (c) being mixed in a weight ratio [(a)+(b)]/(c) of from 89/11 to 50/50, wherein the hard segments of the olefin base thermoplastic elastomer are composed of crystalline polyethylene blocks and (c) is not an ionomer resin.