Patent ID: 7160207

Claim:
A golf ball comprising: a solid core composed of a polybutadiene mixture, the solid core having a coefficient of restitution of 0.770 or more, a diameter of 1.2 inches to 1.6 inches, and a PGA compression of 70 or less; an inner cover layer molded on the solid core, the inner cover layer having a Shore D hardness of at least 60 as measured on the curved outer surface thereof, and including at least one material selected from the group consisting of polyphenylene ether/ionomer blends, ionomers, polyamides, polyurethanes, polyester elastomers, polyester amides, metallocene catalyzed polyolefins, and blends thereof, the solid core and inner cover layer forming an inner ball having a coefficient of restitution of 0.790 or more, a diameter of 1.48 inches to 1.66 inches, and a PGA compression of 90 or less; and an outer cover layer molded about the inner cover layer, the outer cover layer having a Shore D hardness of no more than 55 as measured on the curved surface thereof, the outer cover layer composed of a thermoplastic polyester polyurethane; wherein the golf ball having a spin factor of at least about 5, a PGA compression of 100 or less and a coefficient of restitution of at least 0.770.