Claims
- 1. A golf ball comprising:
a core; and a cover formed over the core, the cover composed of a thermosetting polyurethane material formed from reactants comprising a polyurethane prepolymer and 4,4′-methylenebis-(3-chloro,2,6-diethyl)-aniline, wherein the cover has an aerodynamic surface geometry thereon.
- 2. The golf ball according to claim 1 further comprising at least one boundary layer disposed between the core and the cover.
- 3. The golf ball according to claim 1 wherein the toluene diisocyanate prepolymer is a polypropylene glycol terminated toluene diisocyanate prepolymer with a NCO content ranging from 3.0% to 6.0%.
- 4. The golf ball according to claim 2 wherein the boundary layer is composed of a blend of ionomers.
- 5. The golf ball according to claim 1 wherein the polyurethane prepolymer is a polytetramethylene ether glycol terminated hexamethylene diisocyanate prepolymer.
- 6. A golf ball comprising:
a core comprising a polybutadiene mixture; a boundary layer formed over the core, the boundary layer comprising at least one ionomer material; and a cover formed over the boundary layer, the cover composed of a thermosetting polyurethane material formed from reactants comprising a polytetramethylene ether glycol terminated hexamethylene diisocyanate prepolymer and 4,4′-methylenebis-(3-chloro,2,6-diethyl)-aniline, wherein the cover has an aerodynamic surface geometry thereon.
- 7. The golf ball according to claim 6 wherein the thermosetting polyurethane material of the cover has a Shore D hardness ranging from 30 to 60 as measured according to ASTM-D2240.
- 8. The golf ball according to claim 6 wherein the cover has a thickness ranging from 0.015 inch to 0.040 inch.
- 9. A golf ball comprising:
a core; and a cover formed over the core, the cover composed of a thermosetting polyurethane material formed from reactants comprising a polytetramethylene ether glycol terminated hexamethylene diisocyanate prepolymer and a curative composed of 4,4′-methylenebis-(3-chloro,2,6-diethyl)-aniline and diethyl 2,4-toluenediamine, wherein the cover has an aerodynamic surface geometry thereon.
- 10. A golf ball comprising:
a core comprising a polybutadiene mixture; a boundary layer formed over the core, the boundary layer comprising a blend of ionomer materials; and a cover formed over the core, the cover composed of a thermosetting polyurethane material formed from reactants comprising a polytetramethylene ether glycol terminated hexamethylene diisocyanate prepolymer and a curative composed of 4,4′-methylenebis-(3-chloro,2,6-diethyl)-aniline and diethyl 2,4-toluenediamine, wherein the cover has an aerodynamic surface geometry thereon.
- 11. The golf ball according to claim 10 wherein the golf ball has a PGA compression ranging from 70 points to 100 points.
- 12. The golf ball according to claim 10 wherein the core has a PGA compression in the range of 55 points to 80 points.
- 13. The golf ball according to claim 10 wherein the blend of ionomer materials of the boundary layer is composed of a sodium neutralized ethylene/methacrylic acid, a zinc neutralized ethylene/methacrylic acid and a magnesium neutralized terpolymer of ethylene, methacrylic acid and n-butyl acrylate.
- 14. The golf ball according to claim 10 wherein the thermosetting polyurethane material of the cover has a Shore D hardness ranging from 30 to 60 as measured according to ASTM-D2240.
- 15. The golf ball according to claim 10 wherein the cover has a thickness ranging from 0.015 inch to 0.040 inch.
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] The present application is a continuation-in-part application of U.S. patent application Ser. No. 09/682,866, filed on Oct. 25, 2001, which is a continuation-in-part application of U.S. patent application Ser. No. 09/562,782, filed on May 2, 2000, now U.S. Pat. No. 6,511,388, which is a divisional application of U.S. patent application Ser. No. 09/295,635, filed on Apr. 20, 1999, now U.S. Pat. No. 6,117,024.
Divisions (1)
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Number |
Date |
Country |
Parent |
09295635 |
Apr 1999 |
US |
Child |
09562782 |
May 2000 |
US |
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
09682866 |
Oct 2001 |
US |
Child |
10604350 |
Jul 2003 |
US |
Parent |
09562782 |
May 2000 |
US |
Child |
09682866 |
Oct 2001 |
US |