Claims
- 1. A golf ball comprising:
an inner core having a specific gravity of less than 1.05 g/cc with a compression of greater than 70; an inner casing layer disposed around the inner core, the inner casing layer having a flexural modulus greater than 30,000 psi, a Shore C hardness greater than 80, and a thickness less than about 0.060 inch; an outer core layer encompassing the inner casing layer, the outer core layer having a flexural modulus of less than 30 kpsi, a Shore C hardness less than 80, a specific gravity of less than 1.05 g/cc, and a thickness less than about 0.050 inch; an outer casing layer having a flex modulus greater than 60 kpsi, a thickness less than about 0.030 inch, and a specific gravity greater than 1.25 g/cc; and an outer cover having a hardness of less than 65 Shore D, and a thickness less than 0.040 inch.
- 2. The golf ball according to claim 1, wherein the specific gravity of the outer casing layer is greater than 2.0 g/cc.
- 3. The golf ball according to claim 1, wherein the inner core is formed from a polybutadiene material.
- 4. The golf ball according to claim 1, wherein the inner core is formed from a thermoplastic material.
- 5. The golf ball according to claim 1, wherein the inner core is formed from a fully neutralized ionomer.
- 6. The golf ball according to claim 1, wherein the inner casing is formed from a thermoplastic material.
- 7. The golf ball according to claim 1, wherein the inner casing is formed from a fully neutralized ionomer
- 8. The golf ball according to claim 1, wherein the inner core is formed from an ionomer resin with a fully neutralized acid moiety.
- 9. The golf ball according to claim 1, wherein the inner casing layer is formed from an ionomer resin with a fully neutralized acid moiety.
- 10. The golf ball according to claim 6, wherein the inner casing has a thickness of less than 0.030 inch.
- 11. The golf ball according to claim 6, wherein the inner casing has a thickness of less than 0.025 inch.
- 12. The golf ball according to claim 1, wherein the outer core layer is formed from a polybutadiene material comprising less than 20 phr of a cross-linking material formed from the salt of an alpha, beta-ethylinically unsaturated carboxylic acid.
- 13. The golf ball according to claim 12, wherein the outer core layer has a thickness of less than 0.040 inch.
- 14. The golf ball according to claim 12, wherein the outer core layer has a thickness of less than 0.030 inch.
- 15. The golf ball according to claim 1, wherein the outer casing layer is formed from a thermoplastic polymer comprising a filler having a specific gravity greater than the thermoplastic polymer.
- 16. The golf ball according to claim 15, wherein the outer casing layer has a thickness of less than 0.020 inch and a specific gravity greater than 2.25 g/cc.
- 17. The golf ball according to claim 15, wherein the outer casing layer has a thickness of less than 0.010 inch and a specific gravity greater than 3.2 g/cc.
- 18. The golf ball according to claim 1, wherein the outer cover comprises polyurethane or polyurea.
- 19. The golf ball according to claim 1, wherein the outer cover has a Shore D hardness of less than 60D.
- 20. A golf ball comprising:
an inner core having a specific gravity of less than 1.2 g/cc with a compression of less than 70; a thermoplastic inner casing disposed around the inner core, the inner casing having a flexural modulus greater than 30,000 psi, and a thickness of less than 0.10 inch; an outer core layer having a specific gravity of less than 1.10 g/cc, a thickness of less than about 0.15 inch, and a Shore D hardness of at least 30; and an outer cover layer having a Shore D hardness of less than 65, and a thickness of less than 0.04 inch.
- 21. The golf ball according to claim 20. wherein the inner core is formed from a composition comprising polybutadiene.
- 22. The golf ball according to claim 20. wherein the outer core layer is formed from a composition comprising polybutadiene.
- 23. The golf ball according to claim 20, wherein the inner core has a specific gravity of less than 1.05 g/cc.
- 24. The golf ball according to claim 22, wherein the outer core layer has a thickness of less than 0.10 inch.
- 25. The golf ball according to claim 22, wherein the outer core layer has a Shore D hardness of greater than 40.
- 26. The golf ball according to claim 22, wherein the outer core layer comprises less than 20 phr of a cross-linking material formed from the salt of an alpha, beta-ethylinically unsaturated carboxylic acid.
- 27. The golf ball according to claim 20, wherein the inner core comprises a thermoplastic material.
- 28. The golf ball according to claim 20, wherein the inner core is formed from a fully neutralized ionomer.
- 29. The golf ball according to claim 20, wherein the outer core layer comprises a thermoplastic material.
- 30. The golf ball according to claim 20, wherein the outer core layer is formed from a fully neutralized ionomer.
- 31. The golf ball according to claim 20, wherein the inner core is formed from an ionomer resin with a fully neutralized acid moiety.
- 32. A golf ball according to claim 20, wherein the inner casing layer is formed from an ionomer resin having a fully neutralized acid moiety.
- 33. A golf ball according to claim 20, wherein the inner core has a diameter greater than 1.445 inches.
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation-in-part of U.S. patent application Ser. No. 10/797,699, filed Mar. 10, 2004, which is a continuation-in-part of U.S. patent application Ser. No. 10/341,574, filed Jan. 13, 2003, which is a continuation-in-part of U.S. patent application Ser. No.10/002,641, filed Nov. 28, 2001, now U.S. Pat. No. 6,547,677, which is a continuation-in-part of U.S. patent application Ser. No. 09/948,692, filed Sep. 10, 2001, which is a continuation-in-part of U.S. patent application Ser. 09/172,608, filed Oct. 18,1998, now U.S. Pat. No. 6,302,808, which is a division of U.S. patent application Ser. No. 08/943,932, filed Oct. 3, 1997, now U.S. Pat. No. 6,056,842; also the application is a continuation-in-part of U.S. patent application Ser. No. 09/815,753, filed Mar. 23, 2001, the disclosures of which are hereby incorporated by reference in their entirety.
Divisions (1)
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Number |
Date |
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Parent |
08943932 |
Oct 1997 |
US |
Child |
09172608 |
Oct 1998 |
US |
Continuation in Parts (6)
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Number |
Date |
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Parent |
10797699 |
Mar 2004 |
US |
Child |
10844228 |
May 2004 |
US |
Parent |
10341574 |
Jan 2003 |
US |
Child |
10797699 |
Mar 2004 |
US |
Parent |
10002641 |
Nov 2001 |
US |
Child |
10341574 |
Jan 2003 |
US |
Parent |
09948692 |
Sep 2001 |
US |
Child |
10002641 |
Nov 2001 |
US |
Parent |
09172608 |
Oct 1998 |
US |
Child |
09948692 |
Sep 2001 |
US |
Parent |
09815753 |
Mar 2001 |
US |
Child |
10797699 |
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US |