Urethane golf ball
First Claim
1. A golf ball comprising a center, a cover, and optionally, at least one intermediate layer disposed between the center and the cover, wherein at least one of the center, the cover, and the at least one intermediate layer is formed with a polyurethane composition comprising a reaction product of:
- a prepolymer comprising para-phenylene diisocyanate and at least one polyol selected from the group consisting of polyether polyols having the structure;
where R1 and R2 are straight or branched hydrocarbon chains, each containing from 1 to 20 carbon atoms, and n ranges from 1 to about 45;
polyester polyols having the structure;
where R1 and R2 are straight or branched hydrocarbon chains, each containing from 1 to 20 carbon atoms, and n ranges from 1 to about 25;
polycaprolactone polyols having the structure;
where R1 is a straight or branched hydrocarbon chain containing from 1 to 20 carbon atoms, and n ranges from 1 to about 20; and
polycarbonate polyols having the structure;
where R1 is predominantly bisphenol A units -(p-C6H4)—
C(CH3)2-(p-C6H4)—
or derivatives thereof, and n is the chain length and ranges from 1 to about 20; and
at least one of a hydroxy-terminated curing agent selected from the group consisting of 1,3-bis(2-hydroxyethoxy)benzene and 1,3-bis-[2-(2-hydroxyethoxy)ethoxy]benzene, and 1,3-bis-{2-[2-(2-hydroxyethoxy)ethoxy]ethoxy}benzene;
resorcinol-di-(β
-hydroxyethyl) ether;
hydroquinone-di-(β
-hydroxyethyl)ether;
ethylene glycol;
diethylene glycol;
polyethylene glycol;
polytetramethylene ether glycol having average molecular weights between about 250 to 4000; and
mixtures thereof or an amine curing agent.
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Accused Products
Abstract
A golf ball comprising a center, a cover, and optionally, at least one intermediate layer disposed between the center and the cover, wherein at least one of the center, the cover, and the at least one intermediate layer is formed with a polyurethane composition comprising a reaction product of a prepolymer of at least one polyol and at least one polyisocyanate, and at least one curing agent. A polyurethane composition, suitable for forming golf equipment, said composition comprising a reaction product of a prepolymer of at least one polyol and at least one polyisocyanate, and at least one curing agent.
53 Citations
25 Claims
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1. A golf ball comprising a center, a cover, and optionally, at least one intermediate layer disposed between the center and the cover, wherein at least one of the center, the cover, and the at least one intermediate layer is formed with a polyurethane composition comprising a reaction product of:
-
a prepolymer comprising para-phenylene diisocyanate and at least one polyol selected from the group consisting of polyether polyols having the structure;
where R1 and R2 are straight or branched hydrocarbon chains, each containing from 1 to 20 carbon atoms, and n ranges from 1 to about 45; polyester polyols having the structure;
where R1 and R2 are straight or branched hydrocarbon chains, each containing from 1 to 20 carbon atoms, and n ranges from 1 to about 25; polycaprolactone polyols having the structure;
where R1 is a straight or branched hydrocarbon chain containing from 1 to 20 carbon atoms, and n ranges from 1 to about 20; and polycarbonate polyols having the structure;
where R1 is predominantly bisphenol A units -(p-C6H4)—
C(CH3)2-(p-C6H4)—
or derivatives thereof, and n is the chain length and ranges from 1 to about 20; andat least one of a hydroxy-terminated curing agent selected from the group consisting of 1,3-bis(2-hydroxyethoxy)benzene and 1,3-bis-[2-(2-hydroxyethoxy)ethoxy]benzene, and 1,3-bis-{2-[2-(2-hydroxyethoxy)ethoxy]ethoxy}benzene;
resorcinol-di-(β
-hydroxyethyl) ether;
hydroquinone-di-(β
-hydroxyethyl)ether;
ethylene glycol;
diethylene glycol;
polyethylene glycol;
polytetramethylene ether glycol having average molecular weights between about 250 to 4000; and
mixtures thereof or an amine curing agent.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A polyurethane composition, suitable for forming golf equipment, comprising a reaction product of:
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a prepolymer of para-phenylene diisocyanate and polytetramethylene ether glycol; and
at least one amine curing agent comprising mixtures of 3,5-dimethylthio-2,4-toluenediamine, and 3,5-dimethylthio-2,6-toluenediamine. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification