Patent ID: 7654917

Claim:
A golf ball comprising a core and a cover, wherein the core has an overall diameter of from 1.40 inches to 1.62 inches and consists of: (a) a center having a diameter of from 0.125 inches to 0.750 inches and a surface hardness of 80 Shore C or greater and formed from a low modulus HNP composition, the low modulus HNP composition comprising a highly neutralized ethylene/(meth)acrylic acid/alkyl (meth)acrylate copolymer having a modulus of from 1,000 psi to 50,000 psi; (b) an intermediate core layer having a surface hardness of less than 80 Shore C; and (c) an outer core layer having a surface hardness of 80 Shore C or greater and formed from a high modulus HNP composition, the high modulus HNP composition comprising a highly neutralized ethylene/(meth)acrylic acid copolymer having a modulus of from 25,000 psi to 150,000 psi; wherein the modulus of the highly neutralized copolymer of the low modulus HNP composition is at least 10% less than the modulus of the highly neutralized copolymer of the high modulus HNP composition.