Patent ID: 6656061
Filing Date: 2003-12-02
Classification: A63B,C08G,C08L

Abstract:
A solid golf ball comprising a core and a cover formed on the core, wherein the core is composed of a center and at least one layer of an intermediate layer formed on the center, and whereinthe cover comprises as a base resin (a) polyurethane-based thermoplastic elastomer formed by using cycloaliphatic diisocyanate, or (b) a mixture of polyurethane-based thermoplastic elastomer formed by using cycloaliphatic diisocyanate and polyamide-based thermoplastic elastomer, and has a thickness of not more than 1.0 mm, a surface hardness in Shore D hardness of the center is higher than a central point hardness in Shore D hardness of the center by not less than 15, the surface hardness of the core is higher than the central point hardness of the center by not less than 20, and the surface hardness of the core is higher than the surface hardness of the center.