Golf ball
AssigneeCallaway Golf Company
InventorsGary Matroni, Thomas J. Kennedy, III, Michael J. Tzivanis, Mark L. Binette, David M. Melanson
Life of this patent
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Abstract
A golf ball component, such as a golf ball cover layer, formed from a high or increased melt index thermoplastic polyurethane, polyurea or polyurethane/polyurea is disclosed. The cover layer may be relatively thin (i.e., 0.075 or less, preferably 0.050 inches or less, more preferably less than 0.040 inches, even more preferably less than 0.030 inches). In addition, an operation in which the outer cover is exposed to an isocyanate solution is described to improve certain physical properties of the resulting golf ball.
Claims16
A method of producing a golf ball, said method comprising:
- providing a core material;
- forming a molded core from said core material;
- providing a cover material having a melt index of 15 g/10 minutes or more at a temperature of 200° C. to 210° C. and a load of 8.7 Kg, said cover material comprising a polyurethane, polyurea or blends thereof;
- molding a cover layer from said cover material;
- applying an isocyanate to said cover layer for a time period of from about 1 minute to about 10 minutes.
A method for producing a golf ball, said method comprising:
- providing a core material;
- forming a molded core from said core material;
- providing a cover material, said cover material including a polyurethane, said cover material exhibiting a melt index of from about 35 to about 85 grams per 10 minutes at a temperature of 200° C. to 210° C. and a load of 8.7 kg;
- molding a cover layer from said cover material about said core;
- and
- applying an isocyanate to the molded cover layer.
A method for producing a golf ball, said method comprising:
- providing a core material;
- forming a molded core from said core material;
- providing a cover material, said cover material including a thermoplastic polyurethane, polyurea or blends thereof and where the cover has an increased melt index of 10% or more;
- molding a cover layer from said cover material about said core;
- and
- applying an isocyanate to the molded cover layer.
Dependencies are inferred from the claim text.