# US 2014/0194560 A1 · Novel wax dispersion formulations, method of producing same, and uses

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- Number: US 2014/0194560 A1
- Document ID: US20140194560A1
- Status: Published application
- Kind: A1
- Application number: 14/144,686
- Filed: 2013-12-31
- Published: 2014-07-10
- Earliest claimed: 2008-06-02
- Assignees: Honeywell International Inc.
- Applicants: Honeywell International Inc.
- Inventors: GEORGE LEOTSAKOS; WAYNE M. GRAVATT; CHRISTOPHER P. SMITH; MICHAEL A. KOCUR
- Web page: https://patentgrep.com/patent/US20140194560A1

## CPC

- C09D 133/06: of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08K 9/10: Encapsulated ingredients
- C08L 91/06: Waxes
- C09D 11/12: based on waxes or bitumen
- C09D 133/08: Homopolymers or copolymers of acrylic acid esters
- C08K 5/06: Ethers; Acetals; Ketals; Ortho-esters
- C08K 5/42: Sulfonic acids; Derivatives thereof
- C08L 23/06: Polyethylene
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)
- 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)

## Abstract

Aqueous wax dispersions useful as surface modifiers for paints, inks and coatings. More particularly, aqueous particulate wax dispersions useful as surface modifiers to provide improved properties in primers, paints, inks and other coating formulations. The dispersions are stable, substantially homogenous, have a high solids concentration at low viscosities, and comply with the applicable FDA regulations for use in food packaging applications.

## Claims

### Claim 1

An aqueous wax dispersion comprising:
a) water;
b) at least one particulate wax dispersed within the water, wherein the particulate wax comprises particles having an average particle size of from about 0.1 μm to about 6 μm, wherein substantially all of the wax particles have a particle size of about 20 μm or less, and wherein the particulate wax comprises from about 5% to about 45% by weight of the dispersion; and
c) from greater than 0% to about 5% by weight of a dispersing agent based on the weight of the particulate wax; which dispersing agent coats the surfaces of at least some of the wax particles; and wherein the dispersion has a viscosity of about 100 cps or less at about 25° C. at a wax concentration of about 10% by weight of the dispersion, and a viscosity of about 200 cps or less at about 25° C. at a wax concentration of about 45% by weight of the dispersion, and wherein there is substantially no agglomeration of the wax particles,
wherein the aqueous wax dispersion is prepared at a temperature or temperatures that are maintained below about 50° C.

### Claim 2 (depends on 1)

The aqueous wax dispersion of claim 1 wherein the wax is hydrophobic.

### Claim 3 (depends on 1)

The aqueous wax dispersion of claim 1 wherein the particulate wax has a weight average molecular weight of up to about 13,000.

### Claim 4 (depends on 1)

The aqueous wax dispersion of claim 1 wherein the particulate wax comprises from about 10% by weight to about 45% by weight of the dispersion.

### Claim 5 (depends on 1)

The aqueous wax dispersion of claim 1 wherein the wax comprises a polyolefin wax, oxidized polyolefin wax, Fischer-Tropsch wax, beeswax, Chinese wax, shellac wax, spermaceti wax, wool wax, bayberry wax, candelilla wax, carnauba wax, castor wax, esparto wax, Japan wax, jojoba oil wax, ouricury wax, rice bran wax, soy wax, ceresin wax, montan wax, ozocerite, peat wax, paraffin wax, a microcrystalline wax, a polyethylene wax, a polyethylene homopolymer wax, polypropylene wax, wax grade polytetrafluoroethylene, polytetrafluoroethylene-modified waxes, an alpha-olefin wax, an amide wax, a stearamide wax, or combinations thereof.

### Claim 6 (depends on 1)

The aqueous wax dispersion of claim 1 wherein the dispersing agent comprises one or more anionic surfactants, one or more non-ionic surfactants or a combination thereof.

### Claim 7 (depends on 1)

A coating composition comprising the aqueous wax dispersion of claim 1 combined with at least one coating material.

### Claim 8 (depends on 7)

A coating formed from the coating composition of claim 7.

### Claim at position 9

9-20. (canceled)

### Claim 21 (depends on 1)

The aqueous wax dispersion of claim 1 wherein the wax substantially lacks any pendant groups that increase hydrophilicity.

### Claim 22 (depends on 21)

The aqueous wax dispersion of claim 21 wherein the pendant groups are selected from the group consisting of carboxy groups, hydroxyl groups, ketones, and aldehydes.

### Claim 23 (depends on 1)

The aqueous wax dispersion of claim 1 wherein the wax comprises a homopolymer.

### Claim 24 (depends on 23)

The aqueous wax dispersion of claim 23 wherein the homopolymer is a polyethylene homopolymer.

### Claim 25 (depends on 1)

The aqueous wax dispersion of claim 1 wherein the wax has a crystallinity of about 70% to about 95%.

### Claim 26 (depends on 1)

The aqueous wax dispersion of claim 1 wherein the wax has density between about 0.95 g/cm3 to about 1.0 g/cm3.