Fluorinated reactive compositions for golf balls

• US 7,358,320 B2
• Filed: 03/04/2005
• Issued: 04/15/2008
• Est. Priority Date: 03/04/2005
• Status: Expired due to Fees

• Current Assignee: Acushnet Company (FILA Holdings Corp.)
• Original Assignee: Acushnet Company (FILA Holdings Corp.)
• Inventors: Rajagopalan, Murali, Harris, Kevin M.
• Primary Examiner(s): Buttner; David J.
• Application Number:
  US11/072,588
• Publication Number:
  US 20060199937A1
• Time in Patent Office: 1,138 Days
• Field of Search: None
• US Class Current: 528/68
• CPC Class Codes: A63B 37/0031 Hardness
• CPC Class Codes: A63B 37/0033 Thickness
• CPC Class Codes: A63B 37/0043 Hardness
• CPC Class Codes: A63B 37/0061 Coefficient of restitution
• CPC Class Codes: A63B 37/0064 Diameter
• CPC Class Codes: A63B 37/0078 Coefficient of restitution
• CPC Class Codes: A63B 37/0087 Deflection or compression
• CPC Class Codes: C08G 18/4607 having halogens

Abstract

A golf ball is disclosued, comprising: a core, the core having a diameter of 1.5 inches to 1.65 inches and a first coefficient of restitution of 0.8 or greater at 125 ft/s; an intermediate layer disposed about the core, the intermediate layer having a first Shore D hardness of 20 to 80 and comprising a blend of two or more ionomers; and an outer cover layer disposed about the intermediate layer; the outer cover layer having a thickness of 0.005 inches to 0.05 inches and a second Shore D hardness of 30 to 70, the outer cover layer being composed of a castable material formed from reactants comprising at least one fluorinated polyfunctional compound, wherein the golf ball has a second coefficient of restitution of 0.8 or greater at 125 ft/s and a compression of 50 to 120.

Claims

1. A golf ball comprising:

a core, the core having a first coefficient of restitution of 0.8 or greater at 125 ft/s; and

at least one layer disposed about the core, the layer comprising a polyurea formed from a fluorinated polyamine, wherein the golf ball has a second coefficient of restitution of 0.8 or greater at 125 ft/s and the fluorinated polyamine comprises a branch-fluorinated polyamine comprising at least one monomeric unit of the structure;

2. The golf ball of claim 1, wherein the layer has a thickness of 0.005 inches to 0.05 inches.

3. The golf ball of claim 1, wherein the layer has a Shore D hardness of 50 to 70.

4. The golf ball of claim 1, wherein the layer has a flexural modulus of 50,000 psi to 80,000 psi.

5. The golf ball of claim 1, wherein the layer is an outer cover layer.

6. The golf ball of claim 1, wherein the layer is an intermediate layer disposed between the core and an outer cover layer.

7. The golf ball of claim 1, wherein the layer is a coating layer.

8. The golf ball of claim 1, wherein the layer is composed of a castable materials formed from reactants comprising the fluorinated polyamine and a non-fluorinated polyisocyanate.

9. A golf ball comprising a core and at least one layer disposed about the core, the layer comprising a polyurea formed from a fluorinated polyamine, wherein the fluorinated polyamine comprises

10. The golf ball of claim 9, wherein the fluorinated polyamine further comprises one or more divalent or polyvalent C_1-20 aliphatic radicals, C_6-20 aromatic radicals, C_6-20 alicyclic radicals, C_2-12 alkylenethio-alkylenes, C_2-12 alkylene-oxyalkylenes, C_2-12 alkylene-iminoalkylenes in which the N is optionally attached to a C_1-6 alkyl, —

CH₂CH₂C(CH₃)CH(CH₃)CH₂CH2—

,

11. The golf ball of claim 9, wherein the fluorinated polyamine has a polydispersity of 3 or less.

12. The golf ball of claim 9, wherein the core or the golf ball has a coefficient of restitution of 0.8 or greater at 125 ft/s.

13. A golf ball comprising:

a core, the core having a diameter of 1.5 inches to 1.65 inches;

an intermediate layer disposed about the core, the intermediate layer having a first Shore D hardness of 20 to 80; and

an outer cover layer disposed about the intermediate layer;

the outer cover layer having a thickness of 0.005 inches to 0.05 inches and a second Shore D hardness of 30 to 70, the outer cover layer being composed of a castable polyurea formed from reactants comprising at least one fluorinated polyamine, wherein the golf ball has a compression of 50 to 120 and the fluorinated polyamine comprises a branch-fluorinated polyamine comprising at least one monomeric unit of the structure;

14. The golf ball of claim 13, wherein the core has a coefficient of restituiion of 0.8 or greater at 125 ft/s, and the intermediate layer comprises a blend of two or more ionomers.