Graphene core for a golf ball

Patent metadata

Field	Value
Publication number	US-11179604-B2
Application number	US-202117156839-A
Country	US
Kind code	B2
Filing date	Jan 25, 2021
Priority date	Sep 28, 2016
Publication date	Nov 23, 2021
Grant date	Nov 23, 2021

Abstract

A golf ball with a core comprising polybutadiene and graphene is disclosed herein. The golf ball has a single core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an inner core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an outer core comprising polybutadiene and graphene.

First claim

We claim as our invention the following:

1. A golf ball comprising:
a core comprising polybutadiene in an amount ranging from 40 to 90 weight percent of the core, zinc diacrylate in an amount ranging from 10 to 50 weight percent of the core, zinc oxide in an amount ranging from 1 to 30 weight percent of the core, zinc stearate in an amount ranging from 1 to 20 weight percent of the core, peroxide initiator in an amount ranging from 0.1 to 10 weight percent of the core, and a graphene material in an amount ranging from 0.1 to 5.0 weight percent of the core;
an inner mantle layer disposed over the core, the inner mantle layer having a thickness ranging from 0.03 inch to 0.09 inch;
an outer mantle layer disposed over the inner mantle layer, the outer mantle layer having a thickness ranging from 0.025 inch to 0.050 inch; and
a cover layer disposed over the outer mantle layer.

2. The golf ball according to claim 1 wherein the graphene material ranges from 0.4 to 2.5 weight percent of the core.

3. The golf ball according to claim 1 wherein the graphene material ranges from 0.6 to 1.5 weight percent of the core.

4. The golf ball according to claim 1 wherein the graphene material has a surface area ranging from 400 m 2 /g to 800 m 2 /g.

5. The golf ball according to claim 1 wherein the graphene material has a surface area ranging from 15 m 2 /g to 50 m 2 /g.

6. The golf ball according to claim 1 wherein the graphene material has a surface area ranging from 300 m 2 /g to 400 m 2 /g.

7. The golf ball according to claim 1 wherein the outer mantle layer is composed of a blend of ionomer materials.

Assignees

• Callaway Golf Co

Inventors

• Chavan Vijay
• Bartels David

Classifications

• A63B37/0092

  Hardness distribution amongst different ball layers · CPC title

• A63B37/00922

  whereby hardness of the cover is lower than hardness of the intermediate layers · CPC title

• A63B37/0065

  Deflection or compression · CPC title

• A63B37/0031

  Hardness · CPC title

• A63B37/0033

  Thickness · CPC title