Highly-neutralized acid polymer compositions having a low moisture vapor transmission rate and their use in golf balls
First Claim
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1. A golf ball comprising a core, an intermediate layer and a cover, wherein the intermediate layer has a specific gravity of 1.05 or less and is formed from a moisture resistant composition, wherein the moisture resistant composition has a moisture vapor transmission rate (MVTR) of 12.5 g·
- mil/100 in2/day or less and comprises a highly neutralized acid polymer, wherein the moisture resistant composition is foamed.
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Abstract
The present invention provides golf balls comprising a low specific gravity intermediate layer formed from a moisture resistant composition and disposed between a core and a cover. Depending on the thickness and specific gravity of the various layers, among other factors, the moment of inertia of the golf balls can be high or low.
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Citations
18 Claims
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1. A golf ball comprising a core, an intermediate layer and a cover, wherein the intermediate layer has a specific gravity of 1.05 or less and is formed from a moisture resistant composition, wherein the moisture resistant composition has a moisture vapor transmission rate (MVTR) of 12.5 g·
- mil/100 in2/day or less and comprises a highly neutralized acid polymer, wherein the moisture resistant composition is foamed.
- View Dependent Claims (2, 3, 4, 5, 6)
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7. A golf ball comprising a core, an intermediate layer and a cover, wherein the intermediate layer has a specific gravity of 1.05 or less and is formed from a moisture resistant composition, wherein the moisture resistant composition has a moisture vapor transmission rate (MVTR) of 12.5 g·
- mil/100 in2/day or less and comprises a highly neutralized acid polymer, wherein the moisture resistant composition further comprises expandable microspheres.
- View Dependent Claims (8, 9, 10, 11, 12)
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13. A golf ball comprising:
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a core formed from a rubber composition comprising a high density filler; a polyurethane or polyurea cover; and a low specific gravity intermediate layer disposed between the core and the cover, the intermediate layer having a specific gravity of 1.05 or less and formed from a moisture resistant composition, the moisture resistant composition having a moisture vapor transmission rate (MVTR) of 12.5 g·
mil/100 in2/day or less and comprising a highly neutralized acid polymer;wherein the golf ball has a moment of inertia of 83 g·
cm2 or less;wherein the moisture resistant composition is foamed, and wherein the intermediate layer has a specific gravity of 0.95 or less. - View Dependent Claims (14, 15)
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16. A golf ball comprising:
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a core formed from a rubber composition comprising a high density filler; a polyurethane or polyurea cover; and a low specific gravity intermediate layer disposed between the core and the cover, the intermediate layer having a specific gravity of 1.05 or less and formed from a moisture resistant composition, the moisture resistant composition having a moisture vapor transmission rate (MVTR) of 12.5 gmil/100 in2/day or less and comprising a highly neutralized acid polymer; wherein the golf ball has a moment of inertia of 83 g·
cm2 or less;wherein the moisture resistant composition comprises a specific gravity reducing filler, and wherein the intermediate layer has a specific gravity of 0.95 or less. - View Dependent Claims (17, 18)
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Specification