golf

Abstract

This invention discloses a golf ball comprising a sphere and an outer coating covering the sphere. The outer coating covers the sphere. The outer coating is formed of a thermosetting resin composition, which includes an epoxy-functionalized resin and an acid-curing resin. The epoxy-functionalized resin includes a first reactive monomer, and the first reactive monomer contains an epoxy group. The acid-curing resin includes a second reactive monomer, and the second reactive monomer contains a carboxylic acid group or an anhydride group. Based on 100 wt% of the thermosetting resin composition, the content of the epoxy-functionalized resin is from 15 wt% to 99 wt%, and the content of the acid-curing resin is from 1 wt% to 85 wt%. The molar ratio of the epoxy group to the carboxylic acid or anhydride group in the thermosetting resin composition is in the range of 0.5:1 to 2:1. Therefore, the performance of the golf ball of this invention is controllable and balanced.

Claims

1. A golf ball comprising a sphere and an outer cover layer covering the sphere, wherein the outer cover layer is formed of a thermosetting resin composition, wherein the thermosetting resin composition comprises: An epoxy-functionalized resin includes a first reactive monomer, wherein the first reactive monomer contains an epoxy group. And an acid-curing resin, comprising a second reactive monomer containing a carboxylic acid group or an anhydride group; wherein, based on 100 wt% of the thermosetting resin composition, the content of the epoxy-functionalized resin is from 15 wt% to 99 wt%, and the content of the acid-curing resin is from 1 wt% to 85 wt%; wherein, the molar ratio of the epoxy group to the carboxylic acid or anhydride group in the thermosetting resin composition is in the range of 0.5:1 to 2:

1.

2. The golf ball as claimed in claim 1, wherein, The thermosetting resin composition further includes a colorant, and the outer coating layer has a dotted pattern formed by the colorant.

3. The golf ball as claimed in claim 2, wherein, The pigment content is from 0.1 wt% to 10 wt% based on 100 wt% of the thermosetting resin composition.

4. The golf ball as claimed in claim 1, wherein, The sphere has a multi-layered structure.

5. The golf ball as claimed in claim 4, wherein, The multi-layer structure includes a sphere and at least one inner covering layer covering the sphere, wherein the at least one inner covering layer is located between the sphere and the outer covering layer.

6. The golf ball as claimed in claim 5, wherein, The at least one inner cover layer is formed of thermoplastic polyurethane (TPU) or an ionomer.

7. The golf ball as claimed in claim 5, wherein, The at least one inner covering layer is formed of the thermosetting resin composition.

8. The golf ball as claimed in claim 1 or 7, wherein, Based on 100 wt% of the epoxy functionalized resin, the content of the first reactive monomer is from 3 wt% to 8 wt%; wherein, based on 100 wt% of the acid curing agent resin, the content of the second reactive monomer is from 1 wt% to 20.5 wt%.

9. The golf ball as claimed in claim 8, wherein, The first reactive monomer is glycidyl methacrylate, and the second reactive monomer is acrylic acid, methacrylic acid, or maleic anhydride.

10. The golf ball as claimed in claim 9, wherein, The epoxy functionalized resin and the acid curing agent resin include ethylene monomers.

11. The golf ball as claimed in claim 10, wherein, The epoxy functionalized resin includes a first softening monomer, and the first softening monomer is n-butyl acrylate, vinyl acetate, or methyl acrylate.

12. The golf ball as claimed in claim 10, wherein, The acid-curing resin includes a second softening monomer, and the second softening monomer is n-butyl acrylate, isobutyl acrylate, or ethyl acrylate.

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