CPC A63B 37/00221 (2020.08) [A63B 1/00 (2013.01); A63B 37/0024 (2013.01); A63B 37/0076 (2013.01); A63B 37/0077 (2013.01); A63B 45/00 (2013.01)] | 9 Claims |
1. A method for forming a coated golf ball, comprising the steps of:
providing a golf ball comprising at least one core layer and an outer cover layer, wherein the outer cover layer is formed from a thermoplastic polyurethane composition;
applying a first polyurethane coating comprising unreacted isocyanate groups and unreacted amine groups to the outer cover layer, the first polyurethane coating having an isocyanate index of at least about 115;
treating the golf ball with heat; and
applying a second polyurethane coating to the outer cover of the golf ball to form a coated golf ball, the second polyurethane coating having an isocyanate index of less than 96.
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