Golf ball with multiple cover layers
First Claim
Patent Images
1. A golf ball comprising:
- a core;
a cover disposed about the core, consisting essentially of;
an inner cover layer formed from a first composition having a first hardness and a first coefficient of friction; and
an outer cover layer disposed about and adjacent to the inner cover layer and formed from a second composition having a second hardness and a second coefficient of friction, wherein the second hardness differs from the first hardness by about 5 points or less, and wherein the second coefficient of friction is greater than the first coefficient of friction.
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Abstract
A golf ball having a core and two or more cover layers, wherein the multiple cover layers are formed from materials that are substantially the same composition with the same Shore hardness, but are modified in some way to alter the processing or performance characteristics of the golf ball, or the layers have the same Shore hardness and at least one cover layer is formed of a polymer blend including a polyurethane composition, and at least one cover layer is formed of a different polymer blend.
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Citations
25 Claims
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1. A golf ball comprising:
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a core; a cover disposed about the core, consisting essentially of; an inner cover layer formed from a first composition having a first hardness and a first coefficient of friction; and an outer cover layer disposed about and adjacent to the inner cover layer and formed from a second composition having a second hardness and a second coefficient of friction, wherein the second hardness differs from the first hardness by about 5 points or less, and wherein the second coefficient of friction is greater than the first coefficient of friction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A golf ball comprising:
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a core; a cover disposed about the core, consisting essentially of; an inner cover layer formed from a first composition having a first hardness and a first flexural modulus; and an outer cover layer disposed about and adjacent to the inner cover layer and formed from a second composition having a second hardness and a second flexural modulus, wherein the second hardness differs from the first hardness by about 5 points or less, wherein the first and second flexural moduli substantially similar at ambient temperature, and wherein the second flexural modulus differs from the first flexural modulus at temperatures above or below ambient. - View Dependent Claims (14, 15, 16, 17)
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18. A golf ball comprising:
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a core; a cover disposed about the core, consisting essentially of; an inner cover layer formed from a first composition having a first hardness, wherein the inner cover layer has a first contact angle; and an outer cover layer disposed about and adjacent to the inner cover layer and formed from a second composition having a second hardness, wherein the outer cover layer has and a second contact angle different from the first contact angle, and wherein the second hardness differs from the first hardness by about 5 points or less. - View Dependent Claims (19, 20, 21)
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22. A golf ball comprising:
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a core; a cover disposed about the core, consisting essentially of; an inner cover layer formed from a first composition having a first hardness, a first thickness of about 0.01 to about 0.25 inches, and a first coefficient of friction; and an outer cover layer disposed about and adjacent to the inner cover and formed from a second composition having a second hardness, a second thickness, and a second coefficient of friction, wherein the second hardness differs from the first hardness by about 3 points or less, wherein the second thickness is less than the first thickness and from about 0.005 inches to about 0.1 inches, and wherein the second coefficient of friction is greater than the first coefficient of friction. - View Dependent Claims (23, 24, 25)
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Specification