Patent ID: 7059975

Claim:
A two-piece solid golf ball comprising a core and a cover covering the core, wherein the core comprises cis-1,4-polybutadiene as a main component, a surface hardness, in Shore D hardness, of the core being higher than a center hardness, in Shore D hardness, of the core by not less than 15, the cover is formed from a cover composition mainly comprising polyurethane-based thermoplastic elastomer as a base resin, having a hardness, in Shore D hardness, of 35 to 55, and the hardness of the cover is lower than the surface hardness of the core, and when the hardness of the cover is represented by A and a total dimple volume is represented by B (mm 3 ) and within the range of 350 to 540 mm 3 , the product AB is within the range of 20,000 to 30,000, and a total number of dimples is within the range of 350–450.