Polyurethane compositions for golf balls
First Claim
Patent Images
1. A golf ball comprising a core and a cover, wherein the cover is formed from a composition comprising:
- a saturated polyurethane prepolymer formed from the reaction product of a saturated isocyanate and a saturated polyol; and
a saturated curative blend formed from at least one saturated curing agent and at least one compatible saturated freezing point depressing agent, wherein the saturated curative blend comprises a pigment contained in a grind vehicle.
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Accused Products
Abstract
Polyurethane and polyurea compositions for golf balls with improved stability of the curative blend, wherein the curative blend includes a pigment, a curing agent, and a compatible freezing point depressing agent so that the curative blend has a lower freezing point than the curing agent by itself and the blend does not lose pigment dispersion upon solidification and subsequent thawing.
205 Citations
26 Claims
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1. A golf ball comprising a core and a cover, wherein the cover is formed from a composition comprising:
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a saturated polyurethane prepolymer formed from the reaction product of a saturated isocyanate and a saturated polyol; and a saturated curative blend formed from at least one saturated curing agent and at least one compatible saturated freezing point depressing agent, wherein the saturated curative blend comprises a pigment contained in a grind vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A golf ball comprising a core and a light stable cover, wherein the cover is formed from a composition comprising:
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a polyurethane prepolymer formed from the reaction product of an isocyanate and a polyol; and a pigment dispersed in a curative blend comprising at least one curing agent having a first freezing point and at least one freezing point depressing agent having a second freezing point of about −
10°
F. to about −
100°
F., wherein the pigment is contained in a grind vehicle. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A golf ball comprising a core and a light stable cover, wherein the cover is formed from a composition comprising:
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a polyurethane prepolymer formed from the reaction product of an isocyanate and a polyol; and a pigment dispersed in a solvent free curative blend comprising a curing agent and a freezing point depressing agent, wherein the freezing point depressing agent has a freezing point of about −
10°
F. to about −
120°
F., and wherein the pigment is contained in a grind vehicle. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification