Patent ID: 7101292

Claim:
A multi-piece solid golf ball comprising a core consisting of a center and an intermediate layer formed on the center, and at least one layer of a cover covering the core, wherein the center has a central point hardness in Shore D hardness of 20 to 40 and a surface hardness in Shore D hardness of 32 to 53, the intermediate layer has a thickness of 0.3 to 2.5 mm and a hardness in Shore D hardness of 50 to 75 and a flexural modulus of 70 to 160 MPa, the outermost layer of the cover has a flexural modulus of 180 to 280 MPa, the golf ball has a deformation amount when applying from an initial load of 98 N to a final load of 1275 N of 3.0 to 4.3 mm, the hardness of the intermediate layer is higher than a surface hardness in Shore D hardness of the center and a hardness in Shore D hardness of the outermost layer of the cover, and the flexural modulus of the intermediate layer is lower than that of the outermost layer of the cover, and the intermediate layer is formed from a rubber composition comprising polybutadiene, co-crosslinking agent, organic peroxide and filler as essential components, and the co-crosslinking agent is a metal salt other than a zinc salt of a,β-unsaturated carboxylic acid.