Highly-neutralized acid polymer compositions having a low moisture vapor transmission rate and their use in golf balls
AssigneeAcushnet Company
InventorsEdmund A. Hebert, Derek A. Ladd, Michael J. Sullivan
Life of this patent
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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.
Claims18
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.
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.
A golf ball comprising:
- 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.
A golf ball comprising:
- 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.
Dependencies are inferred from the claim text.