Claims
- 1. A golf ball comprising:
a core having a Shore C hardness of about 70 or less, the core comprising at least a core layer comprising:
an elastomeric composition, a reactive co-agent present by less than about 10 phr by weight of the elastomeric composition, and a cross-linking agent; at least a first intermediate layer encasing the core, the first intermediate layer having a Shore C hardness of about 70 to about 75; and a cover encasing the first intermediate layer, the cover having a Shore C hardness of about 60 or less.
- 2. The golf ball of claim 1, wherein the elastomeric composition comprises a diene polymer.
- 3. The golf ball of claim 2, wherein the cross-linking agent is a peroxide.
- 4. The golf ball of claim 3, wherein the diene polymer is a polybutadiene.
- 5. The golf ball of claim 2, wherein the cross-linking agent is sulfur.
- 6. The golf ball of claim 5, wherein the diene polymer is an ethylene-propylene-diene polymer.
- 7. The golf ball of claim 6, wherein the ethylene-propylene-diene polymer comprises about 70% to about 90% ethylene.
- 8. The golf ball of claim 7, wherein the ethylene-propylene-diene polymer further comprises about 1% to about 5% ethylidene-2-norborene.
- 9. The golf ball of claim 1, wherein the elastomeric composition comprises a material selected from a group consisting of metallocene catalyzed polymers, poly(styrene-butadiene-styrene), SEBS, SEPS block polymers, styrene-ethylene block copolymers, and polar group grafted or copolymerized polymers.
- 10. The golf ball of claim 1, wherein the reactive co-agent is present by less than about 5 phr.
- 11. The golf ball of claim 1, wherein the reactive co-agent is present by about 0 phr.
- 12. The golf ball of claim 1, wherein the reactive co-agent comprises a metal salt of diacrylate, dimethacrylate, or monomethacrylate, or a non-metallic oligomer.
- 13. The golf ball of claim 12, wherein the metal is selected from zinc, magnesium, calcium, barium, tin, aluminum, lithium, sodium, potassium, iron, zirconium, and bismuth.
- 14. The golf ball of claim 1, wherein the core further comprises an innermost core encased by the core layer.
- 15. The golf ball of claim 14, wherein the innermost core comprises a diene polymer and about 10 phr to about 50 phr of a reactive co-agent.
- 16. The golf ball of claim 14, wherein the innermost core comprises a diene polymer and at least about 50 phr of a reactive co-agent.
- 17. The golf ball of claim 1, wherein the golf ball further comprises a second intermediate layer encasing the first intermediate layer, the second intermediate layer being harder than the first intermediate layer, and having a Shore C hardness of about 72 to about 77.
- 18. The golf ball of claim 17, wherein the golf ball further comprises a third intermediate layer encasing the second intermediate layer, the third intermediate layer being harder than the second intermediate layer, and having a Shore C hardness of about 75 to about 80.
- 19. The golf ball of claim 18, wherein the first, second, and third intermediate layers each has a thickness of less than about 2.54 mm.
- 20. The golf ball of claim 18, wherein the first, second, and third intermediate layers each has a thickness of less than about 1.27 mm.
- 21. The golf ball of claim 18, wherein the first, second, and third intermediate layers each has a thickness of about 0.76 mm to about 1.27 mm.
- 22. The golf ball of claim 1, wherein the core has a diameter of about 31.75 mm to about 40.64 mm.
- 23. A golf ball comprising:
a core having a Shore C hardness of about 75 or more, the core comprising at least a core layer comprising:
an elastomeric composition, a reactive co-agent present by less than about 10 phr by weight of the elastomeric composition, and a cross-linking agent; at least a first intermediate layer encasing the core, the first intermediate layer having a Shore C hardness of about 72 to about 75; and a cover encasing the first intermediate layer, the cover having a Shore C hardness of about 70 or more.
- 24. The golf ball of claim 23, wherein the elastomeric composition comprises a diene polymer.
- 25. The golf ball of claim 24, wherein the cross-linking agent is a peroxide.
- 26. The golf ball of claim 25, wherein the diene polymer is a polybutadiene.
- 27. The golf ball of claim 24, wherein the cross-linking agent is sulfur.
- 28. The golf ball of claim 27, wherein the diene polymer is an ethylene-propylene-diene polymer.
- 29. The golf ball of claim 28, wherein the ethylene-propylene-diene polymer comprises about 70% to about 90% ethylene.
- 30. The golf ball of claim 29, wherein the ethylene-propylene-diene polymer further comprises about 1% to about 5% ethylidene-2-norborene.
- 31. The golf ball of claim 23, wherein the elastomeric composition comprises a material selected from a group consisting of metallocene catalyzed polymers, poly(styrene-butadiene-styrene), SEBS, SEPS block polymers, styrene-ethylene block copolymers, and polar group grafted or copolymerized polymers.
- 32. The golf ball of claim 23, wherein the reactive co-agent is present by less than about 5 phr.
- 33. The golf ball of claim 23, wherein the reactive co-agent is present by about 0 phr.
- 34. The golf ball of claim 23, wherein the reactive co-agent comprises a metal salt of diacrylate, dimethacrylate, or monomethacrylate, or a non-metallic oligomer.
- 35. The golf ball of claim 34, wherein the metal is selected from zinc, magnesium, calcium, barium, tin, aluminum, lithium, sodium, potassium, iron, zirconium, and bismuth.
- 36. The golf ball of claim 23, wherein the core further comprises an innermost core encased by the core layer.
- 37. The golf ball of claim 36, wherein the innermost core comprises a diene polymer and about 10 phr to about 50 phr of a reactive co-agent.
- 38. The golf ball of claim 36, wherein the innermost core comprises a diene polymer and at least about 50 phr of a reactive co-agent.
- 39. The golf ball of claim 23, wherein the golf ball further comprises a second intermediate layer encasing the first intermediate layer, the second intermediate layer being softer than the first intermediate layer, and having a Shore C hardness of about 70 to about 73.
- 40. The golf ball of claim 39, wherein the golf ball further comprises a third intermediate layer encasing the second intermediate layer, the third intermediate layer being softer than the second intermediate layer, and having a Shore C hardness of less than about 70.
- 41. The golf ball of claim 40, wherein the first, second, and third intermediate layers each has a thickness of less than about 2.54 mm.
- 42. The golf ball of claim 40, wherein the first, second, and third intermediate layers each has a thickness of less than about 1.27 mm.
- 43. The golf ball of claim 40, wherein the first, second, and third intermediate layers each has a thickness of about 0.76 mm to about 1.27 mm.
- 44. The golf ball of claim 23, wherein the core has a diameter of about 31.75 mm to about 40.64 mm.
STATEMENT OF RELATED APPLICATION
[0001] This patent application is a divisional of co-pending U.S. patent application bearing Ser. No. 10/208,580 entitled “Perimeter Weighted Golf Ball” and filed on Jul. 30, 2002, a continuation-in-part of co-pending U.S. patent application bearing Ser. No. 09/815,753 entitled “Golf Ball And A Method For Controlling The Spin Rate Of Same” and filed on Mar. 31, 2001, and a continuation-in-part of co-pending U.S. patent application bearing Ser. No. 10/164,809 entitled “Golf Ball Cores Comprising Blends of Polybutadiene Rubber” and filed on Jun. 7, 2002. The parent applications are incorporated herein by reference in their entireties.
Divisions (1)
|
Number |
Date |
Country |
Parent |
10208580 |
Jul 2002 |
US |
Child |
10658448 |
Sep 2003 |
US |
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
09815753 |
Mar 2001 |
US |
Child |
10658448 |
Sep 2003 |
US |
Parent |
10164809 |
Jun 2002 |
US |
Child |
10658448 |
Sep 2003 |
US |