# US 9,434,845 B2 · Aqueous dispersions and precursors thereof

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- Number: US 9,434,845 B2
- Document ID: US9434845B2
- Status: Granted
- Kind: B2
- Application number: 14/357,606
- Filed: 2012-12-19
- Published: 2014-11-20
- Granted: 2016-09-06
- Earliest claimed: 2011-12-21
- Assignees: Earthclean Corporation
- Applicants: Earthclean Corporation
- Inventors: Liana Victoria Palaikis; Nathaniel Paul Guimont
- Web page: https://patentgrep.com/patent/US9434845B2

## CPC

- C09D 5/18: Fireproof paints {including high temperature resistant paints}
- A62D 1/0014: {Powders; Granules}
- A62D 1/005: {Dispersions; Emulsions}
- A62D 1/0064: {Gels; Film-forming compositions}
- C08K 3/346: {Clay}
- C08L 3/02: Starch; Degradation products thereof, e.g. dextrin
- C08L 33/02: Homopolymers or copolymers of acids; Metal or ammonium salts thereof
- C08L 91/00: Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C09D 191/00: Coating compositions based on oils, fats or waxes; Coating compositions based on derivatives thereof (polishing compositions, ski waxes C09G)
- C09K 21/14: Macromolecular materials
- D21H 19/00: Coated paper (coated fibreboard D21J1/08); Coating material (recording sheets characterised by the coating used to improve ink, dye or pigment receptivity B41M5/50)
- D21H 19/40: siliceous, e.g. clays
- D21H 19/54: Starch
- D21H 19/58: Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or derivatives thereof
- C08L 2201/02: Flame or fire retardant/resistant
- 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)
- A62D: CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- 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)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- D21H: PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR

## Abstract

A powder composition includes starch, acrylic acid homopolymer salt, and clay. The powder composition forms an aqueous dispersion having a neutral pH when added to water and is capable of clinging to a surface.

## Claims

### Claim 1

An aqueous dispersion comprising water and a powder composition, the powder composition consisting essentially of:
(i) greater than about 50 weight percent starch;
(ii) about 32-38 weight percent of an acrylic acid homopolymer, or an acrylic acid homopolymer salt; and
(iii) about 0.5 to 7 weight percent of preservative;
(iv) greater than about 1.5 weight percent of a compound comprising a combination of a vegetable oil and either a liquid olefin or a liquid paraffin; and
wherein the powder composition is compatible with water to form an aqueous dispersion and the dispersion, when applied to a surface, is capable of clinging to the surface, the dispersion having a substantially neutral pH of about 6.5 to 7.5 and is thixotropic.

### Claim 2 (depends on 1)

The dispersion of claim 1 wherein the preservative is selected from the group consisting of citric acid, sorbic acid, potassium sorbate, mycobin, calcium propionate, methyl paraben and propyl paraben.

### Claim 3 (depends on 1)

The dispersion of claim 1 wherein the compound comprises a combination of a vegetable oil and a liquid olefin.

### Claim 4 (depends on 1)

The dispersion of claim 1 wherein the compound further comprises about 0.5-3 weight percent of a vegetable oil.

### Claim 5 (depends on 1)

The dispersion of claim 1 wherein the vegetable oil comprises a cottonseed oil or a soybean oil or mixtures thereof.

### Claim 6 (depends on 1)

The dispersion of claim 1 wherein the powder composition is substantially free of clay.

### Claim 7 (depends on 1)

The dispersion of claim 1 wherein the olefin comprises a synthetic liquid alpha olefin.

### Claim 8 (depends on 1)

The dispersion of claim 1 comprising a viscosity of about 5,000-15,000 cP with a Brookfield viscometer with a #5 spindle at 5 rpm and room temperature.

### Claim 9

An aqueous dispersion comprising water and a powder composition, the powder composition comprising:
(i) greater than about 50 weight percent starch;
(ii) about 32-38 weight percent of an acrylic acid homopolymer, or an acrylic acid homopolymer salt;
(iii) about 0.5 to 7 weight percent of a preservative;
(iv) greater than about 1.5 weight percent of a compound comprising a combination of a vegetable oil and either a liquid olefin or a liquid paraffin ; and
(v) about 1 to 10% clay;
wherein the powder composition is compatible with water to form an aqueous dispersion and the dispersion, when applied to a surface, is capable of clinging to the surface, the dispersion having a substantially neutral pH of about 6.5 to 7.5 and is thixotropic.

### Claim 10 (depends on 9)

The dispersion of claim 9 wherein the preservative is selected from the group consisting of citric acid, sorbic acid, potassium sorbate, mycobin, calcium propionate, methyl paraben and propyl paraben.

### Claim 11 (depends on 9)

The dispersion of claim 9 wherein the compound comprises a combination of a vegetable oil and a liquid olefin.

### Claim 12 (depends on 9)

The dispersion of claim 9 wherein the compound comprises about 0.5-3 weight percent of a vegetable oil.

### Claim 13 (depends on 9)

The dispersion of claim 9 wherein the vegetable oil comprises a cottonseed oil or a soybean oil or mixtures thereof.

### Claim 14 (depends on 9)

The dispersion of claim 9 comprising 4-6% clay.

### Claim 15 (depends on 9)

The dispersion of claim 9 wherein the olefin comprises a synthetic liquid alpha olefin.

### Claim 16 (depends on 9)

The dispersion of claim 9 comprising a viscosity of about 5,000-15,000 cP with a Brookfield viscometer with a #5 spindle at 5 rpm and room temperature.