Low spin golf ball comprising a mantle with a cellular or liquid core
First Claim
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1. A golf ball comprising:
- a core including a cellular center component and a metal mantle layer disposed about said cellular center component; and
a polymeric cover disposed about said core, said cover including at least one high acid ionomer resin comprising a copolymer of greater than 16% by weight of an alpha, beta-unsaturated carboxylic acid, and an alpha olefin of which about 10 to about 90% of the carboxyl groups of the copolymer are neutralized with a metal cation.
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Abstract
The present invention is directed to a golf ball comprising a soft core and a hard cover to produce a resulting molded golf ball having a reduced spin rate. The golf ball comprises one or more metal mantle layers and a cellular or liquid core component. The golf ball may also comprise an optional polymeric spherical substrate inwardly disposed relative to the one or more metal mantle layers. The golf ball of the present invention may also utilize an enlarged diameter which serves to further reduce spin rate. The resulting golf ball exhibits properties of reduced spin without sacrificing durability, playability and resilience.
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Citations
43 Claims
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1. A golf ball comprising:
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a core including a cellular center component and a metal mantle layer disposed about said cellular center component; and
a polymeric cover disposed about said core, said cover including at least one high acid ionomer resin comprising a copolymer of greater than 16% by weight of an alpha, beta-unsaturated carboxylic acid, and an alpha olefin of which about 10 to about 90% of the carboxyl groups of the copolymer are neutralized with a metal cation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
a first spherical shell proximate to said cellular center component; and
a second spherical shell disposed between said first shell and said polymeric cover.
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10. The golf ball of claim 9 wherein said first shell and said second shell independently each comprise a metal selected from the group consisting of steel, titanium, chromium, nickel, and alloys thereof.
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11. The golf ball of claim 10 wherein at least one of said first shell and said second shell comprise a nickel titanium alloy.
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12. The golf ball of claim 1 further comprising:
a polymeric hollow spherical substrate, said spherical substrate disposed between said mantle layer and said cellular center component.
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13. The golf ball of claim 12 wherein said substrate has a thickness from about 0.005 inches to about 0.010 inches.
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14. The golf ball of claim 1 wherein said cellular center component comprises at least one material selected from the group consisting of polybutadiene/ZDA mixtures, polyurethanes, polyolefins, ionomers, metallocenes, polycarbonates, nylons, polyesters, and polystyrenes.
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15. The golf ball of claim 14 wherein said cellular center component comprises a crosslinked polybutadiene/ZDA mixture.
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16. The golf ball of claim 1 wherein said cellular center component is disposed immediately adjacent to said metal mantle layer.
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17. The golf ball of claim 1 wherein said cover has a thickness greater than 0.0675 inches.
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18. The golf ball of claim 1 wherein said cover has a thickness of from about 0.0675 inches to about 0.130 inches.
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19. The golf ball of claim 1 wherein said golf ball has a diameter of about 1.680 to about 1.800 inches.
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20. The golf ball of claim 1 wherein said cellular center component has a diameter of from about 1.340 to about 1.638 inches.
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21. The golf ball of claim 20 wherein said cellular center component has a diameter of from about 1.500 to about 1.540 inches.
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22. The golf ball of claim 1 wherein said cellular center component has a specific gravity of from about 0.10 to about 1.0.
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23. The golf ball of claim 1 wherein said metal mantle layer comprises at least one metal selected from the group consisting of aluminum, brass, chromium, copper, iron, lead, magnesium, molybdenum, nickel, niobium, silver, steel, tantalum, tin, titanium, tungsten, vanadium, zinc, and alloys thereof.
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24. A golf ball comprising:
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a core including (i) at least one of a hollow polymeric spherical substrate defining an interior region, and a hollow metal mantle defining an interior region, and (ii) a liquid disposed in said interior region of said at least one of said hollow polymeric spherical substrate and said hollow metal mantle; and
a polymeric cover disposed about said core, said cover comprising at least one ionomeric resin including at least 16% by weight carboxylic acid and an alpha olefin of which about 10 to about 90% of the carboxyl groups of the copolymer are neutralized with a metal cation. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
a first spherical shell proximate to said cellular center component; and
a second spherical shell disposed between said first shell and said polymeric cover.
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37. The golf ball of claim 36 wherein said first shell and said second shell independently each comprise a metal selected from the group consisting of steel, titanium, chromium, nickel, and alloys thereof.
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38. The golf ball of claim 37 wherein at least one of said first shell and said second shell comprise a nickel titanium alloy.
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39. The golf ball of claim 24 further comprising:
a polymeric hollow spherical substrate, said spherical substrate disposed between said mantle layer and said cellular center component.
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40. The golf ball of claim 39 wherein said substrate has a thickness from about 0.005 inches to about 0.010 inches.
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41. The golf ball of claim 24 wherein said cover has a thickness greater than 0.0675 inches.
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42. The golf ball of claim 24 wherein said cover has a thickness of from about 0.0675 inches to about 0.130 inches.
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43. The golf ball of claim 24 wherein said golf ball has a diameter of about 1.680 to about 1.800 inches.
Specification