Claims
- 1. A solid golf ball comprising:
a dual core including an inner, high density, spherical center core layer and an outer core layer disposed about said spherical center core layer, wherein said spherical center core layer has a specific gravity from about 1.2 to about 12.0, a diameter of less than 0.590 inches, and a Shore C hardness of 70 or less and comprises a blend including a powdered metal and a first matrix material comprising an elastomeric base material, and wherein said outer core layer has a specific gravity of less than 2.0, a diameter of up to 1.60 inches and comprises a second matrix material selected from the group consisting of thermosets, thermoplastics, and combinations thereof; an inner cover layer formed about said dual core having a thickness of about 0.010 inches to about 0.010 inches; and an outer cover layer disposed on said inner cover layer having a thickness of about 0.010 to about 0.010 inches, wherein said outer cover layer has a Shore D hardness less than the Shore D hardness of the inner cover layer.
- 2. A golf ball according to claim 1, wherein said elastomeric base material comprises polybutadiene, polyisoprene, or blends thereof.
- 3. A golf ball according to claim 1, wherein said outer cover layer has a Shore D hardness of 57 or less.
- 4. A golf ball according to claim 1, wherein said outer cover layer or said inner cover layer has a thickness of about 0.03 to about 0.06 inches.
- 5. A golf ball according to claim 1, wherein said second matrix material of said outer core layer comprises polybutadiene or blends thereof.
- 6. A golf ball according to claim 1, wherein said high density spherical center core layer has a diameter of about 0.200 to about 0.590 inches.
- 7. A golf ball according to claim 1, wherein said powdered metal has a specific gravity of 2.7 or more.
- 8. A golf ball according to claim 1, wherein said golf ball further comprises one or more additional core or cover layers.
- 9. A golf ball according to claim 8, wherein said golf ball exhibits a coefficient of restitution of at least 0.790.
- 10. A golf ball according to claim 1, wherein said golf ball exhibits a NesFactor of 0.880 or more.
- 11. A golf ball according to claim 1, wherein said golf ball exhibits a moment of inertia of less than 0.44 oz. in2.
- 12. A golf ball according to claim 1, wherein said powdered metal constitutes at least 50% by weight of said spherical center.
- 13. A golf ball according to claim 1, wherein said powdered metal comprises a mixture of 100-0% tungsten powder and 0-100% iron powder.
- 14. A golf ball according to claim 1, wherein said spherical center core layer has a specific gravity of less than 9.
- 15. A solid golf ball comprising:
a dual core including an inner, high density, spherical center core layer and an outer core layer disposed about said spherical center core layer, wherein said spherical center core layer has a specific gravity of 2.0 or more, and a Shore C hardness of 50 to 95, and comprises a blend including a powdered metal and a first matrix material comprising an elastomeric base material and wherein said outer core layer comprises a second matrix material selected from the group consisting of thermosets, thermoplastics, and combinations thereof, wherein said outer core layer has a specific gravity of less than 1.2 and a diameter of up to 1.60 inches; an inner cover layer formed about said dual core having a thickness of about 0.010 inches to about 0.050 inches and a Shore D hardness of 58 or more, and wherein said inner cover layer is formed from at least one ionomer resin; and an outer cover layer disposed on said inner cover layer having a thickness of about 0.010 to about 0.055 inches and a Shore D hardness of 57 or less; and wherein said outer cover layer is formed of at lest one ionomer resin or polyurethane material.
- 16. A golf ball according to claim 15, wherein said elastomeric base material comprises polybutadiene, polyisoprene, or blends thereof.
- 17. A golf ball according to claim 15, wherein said first matrix material of said spherical center core layer comprises about 50 weight percent polybutadiene and about 50 weight percent polyisoprene.
- 18. A golf ball according to claim 15, wherein said powdered metal comprises tungsten powder.
- 19. A golf ball according to claim 15, wherein said second matrix material of said outer core layer comprises polybutadiene, polyisoprene, or blends thereof.
- 20. A golf ball according to claim 15, wherein said spherical center has a diameter of from about 0.200 inches to about 0.830 inches.
- 21. A golf ball according to claim 15, wherein said spherical center exhibits a specific gravity of 5 to 12.
- 22. A golf ball according to claim 15, wherein the difference between the specific gravity of said spherical center and said outer core layer is greater than 2.0.
- 23. A golf ball according to claim 15, wherein said golf ball exhibits a moment of inertia of less than 0.44 oz. in2.
- 24. A golf ball according to claim 15, wherein said outer cover layer has a Shore D hardness of from about 40 to about 55.
CROSS REFERENCES TO RELATED APPLICATIONS
[0001] This application is a continuation of U.S. patent application Ser. No. 09/766,234 filed Jan. 19, 2001, which is a continuation-in-part application of U.S. patent application Ser. No. 09/394,829, filed on Sep. 13, 1999, now U.S. Pat. No. 6,277,024. That application is a continuation-in-part of U.S. patent application Ser. No. 08/870,585, filed Jun. 6, 1997, now abandoned, which is a continuation of U.S. patent application Ser. No. 08/556,237, filed Nov. 9, 1995, now abandoned, which is a continuation-in-part of U.S. patent application Ser. No. 08/070,510 filed Jun. 1, 1993, now abandoned. Application Ser. No. 09/766,234 is also a continuation-in-part application of U.S. patent application Ser. No. 08/840,392, filed Apr. 29, 1997, now U.S. Pat. No. 5,779,562, which is a continuation-in-part of U.S. patent application Ser. No. 08/631,613, filed Apr. 10, 1996, now U.S. Pat. No. 5,803,831, which in turn is a continuation-in-part of U.S. patent application Ser. No. 08/591,046, filed on Jan. 25, 1996, now abandoned, and U.S. patent application Ser. No. 08/542,793, filed on Oct. 13, 1995, now abandoned, which in turn is a continuation-in-part of U.S. patent application Ser. No. 08/070,510, filed on Jun. 1, 1993, now abandoned. Application Ser. No. 09/766,234 also claims priority to U.S. Provisional Application Serial No. 60/171,701, filed Dec. 22, 1999.
Continuations (2)
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Number |
Date |
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Parent |
09766234 |
Jan 2001 |
US |
Child |
10618412 |
Jul 2003 |
US |
Parent |
08556237 |
Nov 1995 |
US |
Child |
08870585 |
Jun 1997 |
US |
Continuation in Parts (7)
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Date |
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09394829 |
Sep 1999 |
US |
Child |
09766234 |
Jan 2001 |
US |
Parent |
08870585 |
Jun 1997 |
US |
Child |
09394829 |
Sep 1999 |
US |
Parent |
08070510 |
Jun 1993 |
US |
Child |
08556237 |
Nov 1995 |
US |
Parent |
08840392 |
Apr 1997 |
US |
Child |
09766234 |
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US |
Parent |
08631613 |
Apr 1996 |
US |
Child |
08840392 |
Apr 1997 |
US |
Parent |
08591046 |
Jan 1996 |
US |
Child |
08631613 |
Apr 1996 |
US |
Parent |
08070510 |
Jun 1993 |
US |
Child |
08631613 |
Apr 1996 |
US |