Patent ID: 6743121
Filing Date: 2004-06-01
Classification: A63B,C08G

Abstract:
A multi-piece solid golf ball comprising a core consisting of a center and an intermediate layer formed on the center, and a cover covering the core, whereinthe center has a diameter of 37 to 41 mm, the intermediate layer has a thickness of 0.5 to 2.0 mm and a hardness in Shore D hardness of 55 to 70, 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 cover, and a specific gravity of the intermediate layer is lower than that of the center by 0.05 to 0.3 and is lower than that of the cover by 0.05 to 0.3, and the cover comprises polyurethane-based thermoplastic elastomer as a main component, and has a thickness of 0.3 to 1.0 mm.