Patent ID: 7674193
Filing Date: 2010-03-09
Classification: A63B,C08G

Abstract:
1. A golf ball comprising a core and a cover, wherein the cover has a thickness of 0.2 to 0.8 mm and is made from a cover material including a cured product of a thermosetting resin composition containing a thermosetting urethane resin composition; the thermosetting urethane resin composition comprises an isocyanate group-terminated urethane prepolymer and a polyamine compound; the isocyanate group-terminated urethane prepolymer contains an isocyanate component formed by at least one diisocyanate compound selected from the group consisting of 4,4′-dicyclohexylmethane diisocyanate, cyclohexane diisocyanate and isophorone diisocyanate; the polyamine compound contains 3,3′-diethyl-5,5′-dimethyl-4,4′-diaminodiphenylmethane; the stiffness modulus of the cover material is 80 to 260 MPa; and the stiffness modulus and shore D hardness of the cover material satisfy the following equation: A: Stiffness modulus (MPa) B: Shore D hardness.