# US 10,500,445 B1 · Graphene reinforced polymers for use in a golf ball

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- Number: US 10,500,445 B1
- Document ID: US10500445B1
- Status: Granted
- Kind: B1
- Application number: 16/295,275
- Filed: 2019-03-07
- Granted: 2019-12-10
- Earliest claimed: 2018-03-08
- Assignees: Callaway Golf Company
- Applicants: Callaway Golf Company
- Inventors: Vijay Chavan; David Bartels
- Web page: https://patentgrep.com/patent/US10500445B1

## CPC

- A63B 37/0039: {characterised by the material}
- A63B 37/0033: {Thickness}
- A63B 37/0043: {Hardness}
- A63B 37/0044: {Hardness gradient}
- A63B 37/0045: {Thickness}
- A63B 37/0075: {Three piece balls, i.e. cover, intermediate layer and core}
- A63B 37/0076: {Multi-piece balls, i.e. having two or more intermediate layers}
- A63B 37/00922: {whereby hardness of the cover is lower than hardness of the intermediate layers}
- C08L 23/0876: Salts thereof, i.e. ionomers
- A63B 37/0078: {Coefficient of restitution}
- A63B 37/0087: {Deflection or compression}
- B29C 43/003: {characterised by the choice of material}
- B29C 43/14: in several steps
- B29K 2019/00: Use of rubber not provided for in a single one of main groups {B29K2007/00 - B29K2011/00,} as moulding material
- B29K 2507/04: Carbon
- B29L 2031/546: {Golf balls}
- A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

## Abstract

A golf ball with a mantle layer comprising an ionomer material and a graphene material in an amount ranging from 0.1 to 5.0 weight percent of the mantle layer is disclosed herein. The golf ball may multiple layers. A preferred embodiment of a golf ball comprises a core, a mantle layer and a cover.

## Claims

### Claim 1

A golf ball comprising:
a core;
a mantle layer comprising an ionomer material and a graphene material in an amount ranging from 0.1 to 5.0 weight percent of the mantle layer; and
a cover layer disposed over the mantle layer.

### Claim 2 (depends on 1)

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

### Claim 3 (depends on 1)

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

### Claim 4

A golf ball comprising:
a 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, the inner mantle layer composed of an ionomer material, the inner mantle layer material having a plaque Shore D hardness ranging from 34 to 55;
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, the outer mantle layer comprising an ionomer material and a graphene material in an amount ranging from 0.1 to 5.0 weight percent of the outer mantle layer; and
a cover layer disposed over the outer mantle layer, the cover layer has a thickness ranging from 0.025 inch to 0.040 inch.

### Claim 5

A golf ball comprising:
a core;
an inner mantle layer disposed over the core, the inner mantle layer having a thickness ranging from 0.030 inch to 0.090 inch, the inner mantle layer comprising an ionomer material and a graphene material in an amount ranging from 0.1 to 5.0 weight percent of the inner mantle layer;
an outer mantle layer disposed over the inner mantle layer, the outer mantle layer having a thickness ranging from 0.025 inch to 0.070 inch, the outer mantle layer material having a plaque Shore D hardness ranging from 50 to 71, wherein the inner mantle is thicker than the outer mantle, and the outer mantle is harder than the inner mantle; and
a cover layer is disposed over the outer mantle layer, the cover layer having a thickness ranging from 0.025 inch to 0.050 inch.