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US 7,131,915 B2Granted
Three-layer-cover golf ball
AssigneeAcushnet Company
InventorsMichael J. Sullivan, Derek A. Ladd, Antonio U. DeSimas
Life of this patent
Estimating the term…
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.
Claims20
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.
5 more elements
A golf ball comprising:
- 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.
4 more elements
Dependencies are inferred from the claim text.