Three-layer-cover golf ball
First Claim
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1. A golf ball comprising:
- a core; and
a cover comprising;
an inner cover layer having a thickness of 0.010 to 0.100 inches and comprising a non-ionomeric composition comprised of an acid copolymer or terpolymer having a formula of E/X/Y, where E is an olefin, Y is a carboxylic acid, and X is a softening comonomer;
an outer cover layer comprising;
a light-stable polyurea or a copolymer of a polyurea; and
an intermediate cover layer disposed between the inner and outer cover layers comprising a fully-neutralized ionomer formed from a reaction between an ionomer having acid groups, a suitable cation source, and a salt of an organic acid, the cation source being present in an amount sufficient to neutralize the acid groups by at least 100%, wherein the organic acid is selected from the group consisting of caproic acid, caprylic acid, capric acid, lauric acid, stearic acid, behenic acid, erucic acid, oleic acid, and linoleic acid.
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Abstract
A golf ball comprising a core; and a cover comprising an inner cover layer; an outer cover layer having a material hardness of 60 Shore D or less; and an intermediate cover layer disposed between the inner and outer cover layers; wherein at least two of the inner, intermediate, and outer cover layers comprise a non-ionomeric material.
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Citations
20 Claims
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1. A golf ball comprising:
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a core; and a cover comprising; an inner cover layer having a thickness of 0.010 to 0.100 inches and comprising a non-ionomeric composition comprised of an acid copolymer or terpolymer having a formula of E/X/Y, where E is an olefin, Y is a carboxylic acid, and X is a softening comonomer; an outer cover layer comprising;
a light-stable polyurea or a copolymer of a polyurea; andan intermediate cover layer disposed between the inner and outer cover layers comprising a fully-neutralized ionomer formed from a reaction between an ionomer having acid groups, a suitable cation source, and a salt of an organic acid, the cation source being present in an amount sufficient to neutralize the acid groups by at least 100%, wherein the organic acid is selected from the group consisting of caproic acid, caprylic acid, capric acid, lauric acid, stearic acid, behenic acid, erucic acid, oleic acid, and linoleic acid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A golf ball comprising:
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a core; and a cover comprising; an inner cover layer comprising a fully-neutralized ionomer formed from a reaction between an ionomer having acid groups, a suitable cation source, and a salt of an organic acid, the cation source being present in an amount sufficient to neutralize the acid groups by at least 100%, wherein the organic acid is selected from the group consisting of caproic acid, caprylic acid, capric acid, lauric acid, stearic acid, behenic acid, erucic acid, oleic acid, and linoleic acid; an outer cover layer comprising a light-stable polyurea or a copolymer of a polyurea; and an intermediate cover layer disposed between the inner and outer cover layers comprising a non-ionomeric composition comprised of an acid copolymer or terpolymer having a formula of E/X/Y, where E is an olefin, Y is a carboxylic acid, and X is a softening comonomer. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification