Patent ID: 6645090
Filing Date: 2003-11-11
Classification: A63B

Abstract:
A multi-piece solid golf ball comprising a core having at least one layer, an inner cover formed on the core and an outer cover formed on the inner cover, of which the outer cover has many dimples on the surface thereof, whereina surface hardness in JIS-C hardness of the core is higher than a center hardness in JIS-C hardness of the core by less than 5, the inner cover has a hardness in Shore D hardness of less than 53 and the hardness of the inner cover is higher than the surface hardness of the core, and a hardness of the outer cover is higher that that of the inner cover, wherein the core has a deformation amount of 3.0 to 5.0 mm, when applying from an initial load of 98 N to a final load of 1274 N, wherein the golf ball has a total volume of the dimples of 260 to 400 mm3, and wherein the inner cover comprises 5 to 45 parts by weight of thermoplastic elastomer, based on 100 parts by weight of the base resin.