Golf ball having dual core and thin polyurethane cover formed by rim
First Claim
1. A golf ball comprising:
- a core center component, the core center component composed of a thermoplastic material selected from the group consisting of polyether block amide, a nylon-ionomer blend, a polycarbonate and a polyester elastomer;
a core layer disposed about said core center component, the core layer comprising a polybutadiene material;
an inner cover layer disposed on said core layer, said inner cover layer having a Shore D hardness of less than 45; and
an outer cover layer disposed on said inner cover layer, said outer cover layer comprising a polyurethane material, said outer cover layer having a Shore D hardness of at least 50.
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Abstract
The present invention is directed to a golf ball comprising a dual core component, an inner cover layer and an outer cover layer. The dual core comprises an interior spherical center component formed from a thermoset material, a thermoplastic material, or combinations thereof. The dual core also comprises a core layer disposed about the center component, formed from a thermoset material, a thermoplastic material, or combinations thereof. The one or more polyurethane layers are preferably formed via a reaction injection molding (RIM) technique. The inner cover layer is relatively soft and preferably comprises an ionomer or ionomer blend. The outer cover layer is relatively hard and comprises a hard polyurethane. The resulting multi-layered golf ball of the present invention provides for enhanced distance without sacrificing playability or durability when compared to known multi-layer golf balls.
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Citations
20 Claims
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1. A golf ball comprising:
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a core center component, the core center component composed of a thermoplastic material selected from the group consisting of polyether block amide, a nylon-ionomer blend, a polycarbonate and a polyester elastomer; a core layer disposed about said core center component, the core layer comprising a polybutadiene material; an inner cover layer disposed on said core layer, said inner cover layer having a Shore D hardness of less than 45; and an outer cover layer disposed on said inner cover layer, said outer cover layer comprising a polyurethane material, said outer cover layer having a Shore D hardness of at least 50. - 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 center component, the core center component composed of a thermoplastic material selected from the group consisting of polyether block amide, a nylon-ionomer blend, a polycarbonate and a polyester elastomer; a core layer disposed about said core center component, the core layer comprising a polybutadiene material; an inner cover layer disposed on said core layer, said inner cover layer having a thickness of from about 0.0075 inches to about 0.0225 inches; and an outer cover layer disposed on said inner cover layer, said outer cover layer comprising a polyurethane material, said outer cover layer having a thickness ranging from about 0.075 inches to about 0.0225 inches. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification