Golf Ball which Includes Fast-Chemical-Reaction-Produced Component and Method of Making Same
First Claim
Patent Images
1. A golf ball comprising:
- a core; and
a cover disposed about said core;
wherein said cover comprises a fast reacting aliphatic-based polyurethane and/or polyurea material, wherein said fast reacting aliphatic-based polyurethane and/or polyurea material has a reaction time of less than two minutes at processing conditions.
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Abstract
Disclosed herein is a golf ball comprising fast-chemical-reaction-produced component, such as a component which comprises a reaction injection molded polyurethane material. The golf ball has excellent light stability. Also disclosed is a method making a golf ball by forming a cover component of the ball by mixing two or more reactants that react and form a reaction product with a flex modulus of from about 1 to about 310 kpsi in a reaction time of about 5 minutes or less, the component having a thickness of at least 0.01 inches and a demold time of 10 minutes or less.
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Citations
13 Claims
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1. A golf ball comprising:
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a core; and
a cover disposed about said core;
wherein said cover comprises a fast reacting aliphatic-based polyurethane and/or polyurea material, wherein said fast reacting aliphatic-based polyurethane and/or polyurea material has a reaction time of less than two minutes at processing conditions. - View Dependent Claims (2, 3, 4, 5)
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6. A golf ball comprising:
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a core; and
a cover formed over the core, the cover composed of a fast chemical reaction material formed from reactants comprising 1,6, hexamethylene-diisocyanate and a polytetramethylene ether glycol;
wherein the cover has a thickness ranging from 0.010 inch to 0.044 inch. - View Dependent Claims (7, 8)
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9. A golf ball comprising:
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a core comprising a polybutadiene mixture;
a boundary layer formed over the core; and
a cover formed over the core, the cover composed of a fast chemical reaction aliphatic polyurethane material formed from reactants comprising 1,6, hexamethylene-diisocyanate and a polytetramethylene ether glycol.
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10. A golf ball comprising:
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a core comprising a polybutadiene mixture;
a boundary layer formed over the core; and
a cover formed over the core, the cover composed of a fast chemical reaction aliphatic polyurethane material formed from reactants comprising a diisocyanate and a polyol blend, wherein the fast chemical reaction aliphatic polyurethane material has a Shore D hardness ranging from 30 to 60 as measured according to ASTM-D2240, and a thickness ranging from 0.010 inch to 0.044 inch.
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11. A golf ball comprising:
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a core; and
a cover formed over the core, the cover composed of a fast chemical reaction aliphatic polyurethane material formed from reactants comprising a polytetramethylene ether glycol terminated 4,4′
-diphenylmethane diisocyanate polyurethane prepolymer and a curative;
wherein the cover has an aerodynamic surface geometry thereon. - View Dependent Claims (12)
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13. A golf ball comprising:
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a core comprising a polybutadiene mixture, the core having a diameter ranging from 1.35 inches to 1.64 inches and having a PGA compression ranging from 50 to 90;
a boundary layer formed over the core, the boundary layer composed of a blend of ionomer materials, the boundary layer having a thickness ranging from 0.020 inch to 0.075 inch, the blend of ionomer materials having a Shore D hardness ranging from 50 to 75 as measured according to ASTM-D2240; and
a cover formed over the boundary layer, the cover composed of a fast chemical reaction aliphatic polyurethane material formed from reactants comprising a polytetramethylene ether glycol terminated 4,4′
-diphenylmethane diisocyanate polyurethane prepolymer and a polyol, wherein the aliphatic polyurethane material has a Shore D hardness ranging from 30 to 60 as measured according to ASTM-D2240, a thickness ranging from 0.015 inch to 0.044 inch, and an aerodynamic surface geometry thereon.
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Specification