Patent ID: 6558275
Filing Date: 2003-05-06
Classification: A63B

Abstract:
A three-piece solid golf ball comprising a core, an intermediate layer formed on the core, and a cover covering the intermediate layer, whereinthe core is formed from a rubber composition comprising A parts by weight of organic sulfide compound, B parts by weight of organic oxide and C parts by weight of co-crosslinking agent, based on 100 parts by weight of polybutadiene, a formulation variable (F) represented by the following formula: F=[C(AB)2]/(A+B) is within the range of 1 to 8,a surface hardness in JIS-C hardness of the core is represented as K, a hardness in JIS-C hardness of the intermediate layer is represented as L, a hardness in JIS-C of the cover is represented as M, a thickness of the intermediate layer is represented as W (mm) and a thickness of the cover is represented as X (mm), an impact absorption variable (S) represented by the following formula: S=[W(Kâˆ’I)]/[X(Mâˆ’K)]is within the range of 0.4 to 1.0, anda hardness difference (Kâˆ’L) is within the range of 10 to 30, wherein the intermediate layer comprises 10 to 100% by weight of polyurethane-based thermoplastic elastomer, based on the total weight of a base resin of the intermediate layer.