Golf ball covers including polyurethane and optical brighteners
First Claim
Patent Images
1. A golf ball having a compression of at least about 55 comprising a core and a cover layer wherein the cover comprises an inner cover layer and an outer cover layer formed of a thermoset polyurethane composition comprising:
- a saturated prepolymer comprising a saturated polyol and a saturated diisocyanate;
a saturated curing agent;
a UV absorber; and
an optical brightener;
and wherein the inner cover layer is harder than the outer cover layer.
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Abstract
A golf ball comprising a core and a cover layer wherein the cover is formed of a polyurethane composition comprising a prepolymer comprising a saturated diisocyanate and a curing agent, and an optical brightener.
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Citations
28 Claims
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1. A golf ball having a compression of at least about 55 comprising a core and a cover layer wherein the cover comprises an inner cover layer and an outer cover layer formed of a thermoset polyurethane composition comprising:
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a saturated prepolymer comprising a saturated polyol and a saturated diisocyanate;
a saturated curing agent;
a UV absorber; and
an optical brightener;
and wherein the inner cover layer is harder than the outer cover layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A golf ball comprising a core, a cover layer, and at least one intermediate layer disposed between the core and the cover, wherein the cover is formed of a polyurethane composition comprising:
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a saturated prepolymer comprising a saturated polyol and a saturated diisocyanate;
a saturated curing agent;
an optical brightener; and
a catalyst; and
wherein the intermediate layer comprises a second polyurethane composition comprising a saturated polyol, a saturated diisocyanate, and a saturated curing agent. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification