Patent ID: 7387821
Filing Date: 2008-06-17
Classification: A63B,C08G,C09D,Y10T

Abstract:
1. A golf ball comprising a golf ball body, and a paint film covering said golf ball body, wherein the paint film has a resin component which is a reaction product obtainable by reacting an aqueous polyurethane having a carboxyl group with an aqueous polycarbodiimide having a hydrophilic segment; the aqueous polycarbodiimide is an aqueous polycarbodiimide resin represented by the following chemical formula; and a blending ratio of the aqueous polycarbodiimide to the aqueous polyurethane having the carboxyl group ranges from 0.9 to 1.5 at a molar ratio of carbodiimide group to carboxyl group, or carbodiimide group/carboxyl group, wherein R is a residue formed by removal of isocyanate groups from a diisocyanate, K represents a bond formed by a reaction of an isocyanate group and the hydrophilic segment, and “n” represents an average degree of polymerization and is an integer ranging from 2 to 100.