Patent ID: 8158708

Claim:
A golf ball material comprising an ionomer blend composition of: (a) an ionomer having a base resin which is an E/X copolymer and/or an E/X/Y terpolymer, wherein E is an α-olefin, X is a C 3 to C 8 unsaturated monocarboxylic acid, unsaturated dicarboxylic acid or acid anhydride thereof and Y is an alkyl ester of an unsaturated monocarboxylic acid or unsaturated dicarboxylic acid in which the alkyl groups have from 1 to 8 carbon atoms, wherein X is present in an amount of from about 1 to about 30 wt % based on the total weight of said copolymer or said terpolymer, and Y is present in an amount of from about 2 to about 30 wt % based on the total weight of said terpolymer; and (b) one or more polysilsesquioxanes which has at least an alkoxy group as one terminal functional group, having one of chemical structures (ii) and (iii) below, wherein R is a functional group having from 1 to 10 carbons and is selected from the group consisting of alkyl, alkenyl, cycloalkyl, allyl, aralkyl, aryl, hydroxyl and alkoxy radicals, wherein the ionomer of component (a) includes metal cations from a metal cation source in the form of fine particles which have an average particle size of about 0.001 to about 5.0 μm and are made of an oxygen-containing inorganic metal compound selected from the group consisting of metal oxides, metal carbonates and metal hydroxides, or in the form of a masterbatch of said fine particles, and wherein at least some portion of the acid groups in the ionomer base resin is neutralized by said metal cation source, and wherein titanium oxide is added to the component (b).