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US 6,646,061 B2Granted
Golf ball forming compositions comprising polyamide
AssigneeAcushnet Company
InventorMurali Rajagopalan
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AssigneeAcushnet Company
InventorMurali Rajagopalan
Estimating the term…
The present invention relates to a golf ball comprising a core layer, at least one intermediate layer, and a cover layer, wherein the core layer or the at least one intermediate layer are formed from compositions comprising a polyamide, in the form of a homopolymer, a copolymer, or mixtures thereof. The compositions comprise about 1 to about 99 weight percent of at least one nonionomer polymer and about 99 to about 1 weight percent of at least one polyamide polymer. The polyamides of the present invention comprise polyamides and polyamide copolymers, such as nylons, nylon copolymers, and nylon block copolymers. The nonionomer polymer comprises a nonionomer thermoplastic elastomer or a nonionomer thermoplastic. The present invention also relates to a method of making a golf ball comprising forming a golf ball core, preparing a composition comprising about 1 to about 99 weight percent of at least one nonionomer polymer and about 99 to about 1 weight percent of at least one polyamide polymer, and molding the blend around the golf ball core to form the golf ball.
A golf ball comprising at least one core layer, a cover layer, and at least one intermediate layer disposed between the at least one core layer and the cover layer, wherein the at least one core layer or the at least one intermediate layer comprises a polymer composition comprising about 1 to about 99 weight percent of at least one nonionomer thermoplastic polymer and about 99 to about 1 weight percent of at least one polyamide polymer having a flexural modulus of about 30,000 or greater, and wherein the cover layer comprises a thermoset polyurethane material, a thermoset polyurea material, or a mixture thereof.
A golf ball comprising at least one core layer, a cover layer, and at least one intermediate layer disposed between the at least one core layer and the cover layer, wherein the intermediate layer comprises a polymer composition comprising about 25 to about 55 weight percent of at least one nonionomer thermoplastic polymer and about 75 to about 45 weight percent of at least one polyamide polymer having a flexural modulus of about 30,000 psi to about 50,000 psi, and wherein the cover is formed from a composition comprising a thermoset polyurea material, a thermoset polyurethane material, or a combination thereof.
A golf ball comprising at least one core layer, a cover layer, and at least one intermediate layer disposed between the at least one core layer and the cover layer, wherein the at least one intermediate layer comprises a polymer blend comprising about 1 to about 99 weight percent of at least one nonionomer thermoplastic polymer and about 99 to about 1 weight percent of at least one polyamide polymer having a flexural modulus of about 30,000 psi to about 500,000 psi, wherein the at least one intermediate layer has a thickness of about 0.02 inches to about 0.09 inches, and wherein the cover layer is formed of a composition comprising a thermoset polyurethane material, a thermoset polyurea material, or mixtures thereof and has a thickness of about 0.03 inches to about 0.12 inches.
Dependencies are inferred from the claim text.