Thermoplastic polyurethane golf ball with improved resiliency
AssigneeAcushnet Company
InventorsShenshen Wu, Murali Rajagopalan
Life of this patent
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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 cover and the at least one intermediate layer is formed with a thermoplastic polyurethane composition comprising a reaction product of at least one polyol and at least one diisocyanate, and a curing agent consisting essentially of at least one diol having the formula: HOH2CH2C(OH2CH2C)nO—X—O(CH2CH2O)mCH2CH2OH; wherein n and m, each separately have a value of 0, 1, 2, or 3, X is o-phenylene, m-phenylene, p-phenylene, 1,2-cyclohexyl, 1,3-cyclohexyl, 1,4-cyclohexyl; and mixtures a thereof.
Claims41
A golf ball comprising a center and a cover, wherein the cover is formed with a thermoplastic polyurethane composition comprising a reaction product of at least one polyol and at least one diisocyanate, and a curing agent consisting essentially of at least one diol having the formula:
- HOH2CH2C(OH2CH2C)nO—X—O(CH2CH2O)mCH2CH2OH;
- wherein n and m, each separately have a value of 0,1,2, or 3, X is o-phenylene, m-phenylene, p-phenylene, 1,2-cyclohexyl, 1,3-cyclohexyl, 1,4-cyclohexyl;
- and mixtures thereof.
A golf ball comprising a center and a cover, wherein the cover is formed with a thermoplastic polyurethane composition comprising a reaction product of at least one polyol and at least one diisocyanate, and a secondary diamine curing selected from the group consisting of 1,4-bis-(sec-butylamino)-cyclohexane:
- 1,2-bis-(sec-butylamino)-cyclohexane;
- 4,4′-bis-(sec-butylamino)-dicyclohexylmethane;
- derivatives of 4,4′-bis-(sec-butylamino)-dicyclohexylmethane;
- and mixtures thereof.
A golf ball comprising a center and a cover, wherein the cover is formed from a thermoplastic polyurethane composition comprising:
- a prepolymer comprising at least one polyol and liquid 4,4-diphenylmethane diisocyanate;
- and
- a curing agent.
Dependencies are inferred from the claim text.