Patent ID: 6919395
Filing Date: 2005-07-19
Classification: A63B,C08L,Y10S

Abstract:
1. A golf ball comprising a core, an intermediate layer, and a cover, wherein the core has an outer diameter of 1.550 inches to 1.620 inches and is formed of a composition comprising a base rubber and a ZnO nanoparticulate material having a particle size of less than about 1000 nm and at least one material selected from the group consisting of thermoplastics, thermoplastic elastomers, ionomers, copolyether-esters, copolyester-esters, copolyether-amides, copolyester-amides, thermoplastic urethane, thermoset ureas, epoxy urethanes, epoxy ureas, phenolics, and metallocene or single-site non-metallocene catalyzed polymers, and the intermediate layer has a thickness of 0.035 inches or less and comprises a material selected from the group consisting of thermoplastic elastomers, ionomers, copolyether-amides, copolyester-amides, thermoset ureas, epoxy urethanes, epoxy ureas, phenolics, and metallocene or single-site non-metallocene catalyzed polymers.