Golf ball layers formed of polyurethane-based and polyurea-based compositions incorporating block copolymers
First Claim
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1. A method for forming a golf ball composition comprising the steps of:
- forming a prepolymer comprising an isocyanate and at least one of a hydroxy-terminated component or an amine-terminated component;
providing a block copolymer, wherein the block copolymer comprises at least one functional group at a terminal end of the block copolymer;
reacting excess prepolymer with the block copolymer to form an intermediate prepolymer comprising a hydrophobic block and isocyanate groups;
chain extending the intermediate prepolymer with a curing agent to form the composition.
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Abstract
Golf equipment having improved cut and shear resistance that includes a polyurea-based composition or polyurethane-based composition, preferably saturated and/or water resistant, formed of a prepolymer, a functionalized block copolymer, and optionally further cured or chain extended with a curing agent, where the prepolymer is incorporated at the terminal end of the functionalized block copolymer.
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Citations
20 Claims
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1. A method for forming a golf ball composition comprising the steps of:
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forming a prepolymer comprising an isocyanate and at least one of a hydroxy-terminated component or an amine-terminated component; providing a block copolymer, wherein the block copolymer comprises at least one functional group at a terminal end of the block copolymer; reacting excess prepolymer with the block copolymer to form an intermediate prepolymer comprising a hydrophobic block and isocyanate groups; chain extending the intermediate prepolymer with a curing agent to form the composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for forming a golf ball component comprising the steps of:
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forming a prepolymer comprising an isocyanate and at least one of a hydroxy-terminated component or an amine-terminated component; providing a block copolymer comprising an acrylate-diene block, an olefin-diene-acrylate block, an acrylate-diene-acrylate block, or a mixture thereof wherein the block copolymer comprises at least one functional group at a terminal end of the block copolymer; reacting the prepolymer with the block copolymer to form the composition; forming the composition into a golf ball component. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for forming a golf ball component comprising the steps of:
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forming a prepolymer comprising an isocyanate and at least one of a hydroxy-terminated component or an amine-terminated component; providing a block copolymer comprising an Ax-By-Az block and at least one functional group at a terminal end of the Ax-By-Az block, and wherein the Ax-By-Az block comprises an olefin-diene-acrylate block or an acrylate-diene-acrylate block, wherein x, y, and z are independently 1 or greater; reacting the prepolymer with the block copolymer to form the composition; forming the composition into a golf ball component. - View Dependent Claims (18, 19, 20)
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Specification