Patent ID: 8002646
Filing Date: 2011-08-23
Classification: A63B,B29C,B29K,B29L,C08L

Abstract:
1. A golf ball consisting essentially of: (a) a center having a diameter of from 1.20 inches to 1.30 inches, a center hardness of 50 Shore C or greater, and formed from a first HNP composition, the first HNP composition having a material hardness of 55 Shore D or less and comprising a highly neutralized ethylene/(meth)acrylic acid/alkyl (meth)acrylate copolymer; (b) an outer core layer having a surface hardness of 75 Shore C or greater and formed from a second HNP composition, the second HNP composition having a material hardness of 45 Shore D or greater and comprising a highly neutralized ethylene/(meth)acrylic acid copolymer; (c) an inner cover layer formed from a thermoplastic composition and having a material hardness less than the surface hardness of the outer core layer; and (d) an outer cover layer formed from a polyurethane or polyurea composition; wherein the material hardness of the first HNP composition is less than the material hardness of the second HNP composition.