# US 11,439,873 B1 · Functionalized aluminosilicate microspheres for golf ball applications

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- Number: US 11,439,873 B1
- Document ID: US11439873B1
- Status: Granted
- Kind: B1
- Application number: 17/547,914
- Filed: 2021-12-10
- Granted: 2022-09-13
- Earliest claimed: 2019-12-19
- Assignees: Callaway Golf Company
- Applicants: Callaway Golf Company
- Inventors: Hong G. Jeon
- Web page: https://patentgrep.com/patent/US11439873B1

## CPC

- A63B 37/005: {Cores}
- A63B 37/0024: {Materials other than ionomers or polyurethane}
- A63B 37/0039: {characterised by the material}
- A63B 37/0051: {Materials other than polybutadienes; Constructional details}
- A63B 37/0075: {Three piece balls, i.e. cover, intermediate layer and core}
- C01B 33/26: Aluminium-containing silicates {, i.e. silico-aluminates}
- C01P 2004/32: Spheres
- C01P 2004/61: Micrometer sized, i.e. from 1-100 micrometer
- A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H)
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}
- C01P: INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

## Abstract

A golf ball core, mantle, and/or cover layer(s) of golf ball having a composition comprising functionalized aluminosilicate particles having a particle size of less than 50 μm is disclosed herein. The aluminosilicate microspheres with an average diameter less than 50 μm are functionalized with, but not limited to, polysulfide, vinyl, amino, epoxy, hydroxyl, carboxyl, methacryloyl, hydrocarbon, mercapto and isocyanate.

## Claims

### Claim 1

A golf ball comprising:
a core;
an inner mantle layer;
an outer mantle layer; and
a cover layer;
wherein at least one of the core, the inner mantle layer, the outer mantle layer or the cover layer comprises a plurality of functionalized aluminosilicate microspheres, wherein each of the plurality of aluminosilicate microspheres has an average diameter less than 50 μm and each is functionalized with a polysulfide, an epoxy, a methacryloyl, a mercapto or an isocyanate.

### Claim 2

A golf ball comprising:
a core;
an inner mantle layer;
an outer mantle layer; and
a cover layer;
wherein at least one of the core, the inner mantle layer, the outer mantle layer or the cover layer comprises a plurality of functionalized aluminosilicate microspheres, wherein each of the plurality of aluminosilicate microspheres has an average diameter less than 50 μm and each is functionalized with an epoxy.

### Claim 3

A golf ball comprising:
a core;
an inner mantle layer;
an outer mantle layer; and
a cover layer;
wherein at least one of the core, the inner mantle layer, the outer mantle layer or the cover layer comprises a plurality of functionalized aluminosilicate microspheres, wherein each of the plurality of aluminosilicate microspheres has an average diameter less than 50 μm and each is functionalized with a polysulfide.