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US 9,433,827 B2Granted
Golf equipment formed from castable formulation with unconventionally low hardness and increased shear resistance
AssigneeAcushnet Company
InventorsShawn Ricci, Christopher Cavallaro
Life of this patent
Estimating the term…
Abstract
Golf equipment including compositions including castable formulations that have low material hardness and increased shear resistance. The compositions may be used in any layer of a golf ball including cores, intermediate layers, and covers and result in high spin rates.
Claims20
A golf ball comprising:
- a core;
- an inner cover layer disposed about the core;
- and
- an outer cover layer disposed about the inner cover layer, wherein the outer cover layer has a hardness of about 30 Shore D to about 60 Shore D and is formed from a castable material comprising:
- a prepolymer formed from the reaction product of at least one isocyanate and polytetramethylene ether glycol, wherein the NCO content of the prepolymer ranges from about 5 percent to about 7 percent;
- and
- a polyether diol having a molecular weight of about 400 to about 2500 and having the following structure:
- wherein n is the chain length from 2 to 30;
- wherein the castable material has a hardness of about 8 Shore D to about 16 Shore D.
6 more elements
A golf ball comprising:
- a core;
- and
- a cover having a hardness of about 40 Shore D to about 55 Shore D, wherein the cover is formed from a castable material comprising:
- a prepolymer formed from the reaction product of at least one isocyanate-containing component and at least one isocyanate-reactive component;
- and
- a polyether diol having a molecular weight of about 400 to about 2500 and having the following structure:
- wherein n is the chain length from 2 to 30;
- wherein the castable material has a hardness of about 8 Shore D to about 16 Shore D.
5 more elements
A golf ball comprising:
- a core;
- a cover;
- and
- an intermediate layer disposed between the core and the cover,
- wherein the cover has a hardness of about 40 Shore D to about 55 Shore D and is formed from a castable material comprising:
- a prepolymer formed from at least one aromatic diisocyanate and at least one polyol, wherein the NCO content of the prepolymer ranges from about 5 percent to about 7 percent;
- and
- a polyether diol having the following structure:
- wherein n is the chain length from 2 to 30;
- wherein the castable material has a hardness of about 8 Shore D to about 16 Shore D.
7 more elements
Dependencies are inferred from the claim text.