Patent ID: 7211008

Claim:
A golf ball comprising: (a) an inner core layer formed from a diene rubber composition; (b) an outer core layer 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 45,000 psi to 150,000 psi; (c) an intermediate core layer disposed between the inner core layer and the outer core layer 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; and (d) a cover; 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.