Patent ID: 6616548
Filing Date: 2003-09-09
Classification: A63B

Abstract:
A two-piece solid golf ball comprising a core and a cover covering the core, whereina surface hardness in Shore D hardness of the core is higher than a center hardness in Shore D hardness of the core by 15 to 40, the cover is formed from a cover composition comprising (a) 10 to 80 parts by weight of ethylene-(meth)acrylic acid copolymer ionomer resin, (b) 0 to 60 parts by weight of ethylene-(meth)acrylic acid-(meth)acrylic acid ester terpolymer ionomer resin, and (c) 5 to 60 parts by weight of thermoplastic elastomer comprising styrene block, based on 100 parts by weight of a base resin, the cover has a Shore D hardness of 40 to 60, the cover hardness is lower than the surface hardness of the core by 1 to 20, wherein the cover has a thickness of 1.4 to 2.0 mm, and when the cover hardness is represented by A and a total dimple volume is represented by B (mm3), the product AB is within the range of 12,000 to 18,000.