Patent Application

App. No. 15/203,617

Abstract

Claims (33)

1 . A golf ball comprising:

(A) a core;

(B) optionally, at least one intermediate layer; and

(C) a cover layer,

wherein the cover layer or the intermediate layer comprises a polyurethane-urea composition that is the reaction product of:

(i) a thermoplastic polyurethane-urea formed as a reaction product of (a) a diol or polyol, (b) a first isocyanate, and (c) an amine chain extender; and

(ii) a crosslinking agent.

2 . A golf ball comprising:

(A) a core;

(B) optionally, at least one intermediate layer; and

(C) a cover layer,

wherein the cover layer or the intermediate layer comprises a polyurethane-urea composition that is formed from:

(i) a crosslinked polyurethane-urea that is a reaction product of (a) a diol or polyol, (b) a first isocyanate, and (c) an amine chain extender.

3 . The golf ball of claim 1 , wherein the crosslinking agent is selected from a diamine, a second amine, a blocked amine, a second isocyanate, a blocked isocyanate, a polyamine, a polyisocyanate, a peroxide, a sulfur-containing compound, or any combination thereof.

4 . The golf ball of claim 1 , wherein the crosslinking agent is a second isocyanate.

5 . The golf ball of any one of claim 1 , wherein the cover layer comprises the polyurethane-urea composition.

6 . A golf ball comprising:

(A) a core;

(B) optionally, at least one intermediate layer; and

(C) a cover layer,

wherein the cover layer or the intermediate layer comprises a UV-cured polyurethane.

7 . A golf ball comprising:

(A) a core;

(B) optionally, at least one intermediate layer; and

(C) a cover layer,

wherein the cover layer or the intermediate layer comprises a crosslinked polyurethane composition that is formed from a UV-curable thermoplastic polyurethane.

8 . The golf ball of claim 7 , wherein the UV-curable thermoplastic polyurethane includes UV-curable (meth)acrylic functional groups.

9 . A method for making a golf ball comprising:

forming a layer over a golf ball core or forming a layer over a golf ball intermediate layer, wherein the layer comprises a crosslinkable thermoplastic polyurethane-urea that is a reaction product of (a) a diol or polyol, (b) a first isocyanate, and (c) an amine chain extender; and

crosslinking the crosslinkable thermoplastic polyurethane-urea.

10 . A method for making a golf ball comprising:

forming a layer over a golf ball core or forming a layer over a golf ball intermediate layer, wherein the layer comprises a UV-crosslinkable thermoplastic polyurethane; and

irradiating the layer with UV light under conditions sufficient for crosslinking the UV-crosslinkable thermoplastic polyurethane.

Assignments (13)