# US 12,006,409 B2 · Fibreglass reinforced plastic

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- Number: US 12,006,409 B2
- Document ID: US12006409B2
- Status: Granted
- Kind: B2
- Application number: 18/311,798
- Filed: 2023-05-03
- Published: 2023-08-31
- Granted: 2024-06-11
- Earliest claimed: 2020-10-02
- Assignees: Hydrawall Pty Ltd
- Applicants: Hydrawall Pty Ltd.
- Inventors: Lewis John Beale
- Web page: https://patentgrep.com/patent/US12006409B2

## CPC

- C08J 5/043: {with glass fibres}
- B01F 23/00: Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- C08K 3/042: {Graphene or derivatives, e.g. graphene oxides}
- C08K 7/14: Glass
- C08K 7/28: Glass
- C08L 25/04: Homopolymers or copolymers of styrene
- E04H 4/00: Swimming or splash baths or pools
- C08J 2325/06: Polystyrene
- C08J 2367/06: Unsaturated polyesters
- C08K 2201/005: Additives being defined by their particle size in general
- C08L 25/06: Polystyrene
- E04H 4/0031: {with shell type elements}
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- B01F: MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING (mixing paints B44D3/06)
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- E04H: BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL (foundations E02D)

## Abstract

Provided herein is a resin composition containing milled fibreglass and graphene. Also provided herein is a composite material containing cured resin composition, fibreglass reinforced resin containing the composite material and further fibreglass, a laminate including a layer of the fibreglass reinforced resin, and methods of making the resin composition, composite material and fibreglass reinforced resin. The composition, composite material and fibreglass reinforced resin and laminate find use in, for example, the construction of swimming pools and spa pools.

## Claims

### Claim 1

A composition comprising
a mixture of one or more curable or cured resins,
graphene,
and one or more inert milling media
d) that are hydrophobic and/or insoluble in the composition, wherein the one or more milling media is capable of dispersing graphene.

### Claim 2 (depends on 1)

A composition according to claim 1, wherein the crushing strength of the one or more milling media is greater than about 2000 psi (13.79 MPa), or greater than about 3000 psi (20.70 MPa), or greater than about 4000 psi (27.58 MPa).

### Claim 3 (depends on 1)

A composition according to claim 1, wherein the one or more milling media have a Mohs hardness of greater than about 4, or greater than about 5, or greater than about 6.

### Claim 4 (depends on 1)

A composition according to claim 1, wherein the one or more milling media comprise one or more of hollow glass microspheres, cenospheres and expanded glass aggregate.

### Claim 5 (depends on 1)

A composition according to claim 1, wherein the one or more curable or cured resins comprise one or more of bisphenol A vinyl ester resin, terephthalate resin, terephthalate-NPG resin, isophthalate resin, isophthalate-NPG resin, orthophthalate resin, orthophthalate-NPG resin and urethane acrylate modified resin.

### Claim 6 (depends on 1)

A composition according to claim 1, wherein the graphene has an average platelet size between about 1 micron and about 100 micron, or between about 5 micron and about 50 micron, or between about 10 micron and about 30 micron.

### Claim 7 (depends on 1)

A composition according to claim 1, wherein the composition comprises milling media which are hollow glass microspheres having a diameter between about 30 micron and about 150 micron.

### Claim 8 (depends on 1)

A composition according to claim 1, further comprising one or more accelerators, promoters, inhibitors, air release agents, wetting agents, silanes and low styrene emission additives.

### Claim 9 (depends on 1)

A composite material, said composite material comprising
d) a cured composition according to claim 1.

### Claim 10 (depends on 7)

A fibreglass reinforced resin comprising the composite material according to claim 7 and further fibreglass.

### Claim 11 (depends on 8)

A laminate comprising one or more layers of fibreglass reinforced resin according to claim 8.

### Claim 12 (depends on 9)

A swimming pool or spa pool comprising a laminate according to claim 9.

### Claim 13 (depends on 1)

A composition according to claim 1, wherein the composition comprises milling media which are cenospheres having a diameter between about 20 micron and about 150 micron.