# US 9,517,442 B2 · Dispersants having biobased compounds

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- Number: US 9,517,442 B2
- Document ID: US9517442B2
- Status: Granted
- Kind: B2
- Application number: 15/075,452
- Filed: 2016-03-21
- Published: 2016-07-14
- Granted: 2016-12-13
- Earliest claimed: 2011-05-10
- Assignees: Archer Daniels Midland Company
- Applicants: Archer Daniels Midland Company
- Inventors: Shireen S. Baseeth; Teodora R. Tabuena-Salyers; Bruce R. Sebree
- Web page: https://patentgrep.com/patent/US9517442B2

## CPC

- C08K 5/521: Esters of phosphoric acids, e.g. of H3PO4
- A61K 8/361: {Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof}
- A61K 8/365: Hydroxycarboxylic acids; Ketocarboxylic acids
- A61K 8/553: {Phospholipids, e.g. lecithin}
- A61Q 1/02: Preparations containing skin colorants, e.g. pigments (preparations in powder form A61Q1/12)
- C09D 7/20: Diluents or solvents
- C09D 7/45: Anti-settling agents
- C09D 17/003: {containing an organic pigment (process features in the making of dye stuff preparations C09B67/00)}
- C09D 17/004: {containing an inorganic pigment}
- C09D 17/005: {Carbon black}
- C09D 17/008: {Titanium dioxide}
- C09K 23/018: {Mixtures of two or more different organic oxygen-containing compounds}
- C09K 23/14: Derivatives of phosphoric acid
- A61K 2800/413: Nanosized, i.e. having sizes below 100 nm
- C09D 7/40: Additives
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- 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)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

## Abstract

The present disclosure is directed to compositions having lecithin and an organic acid and related methods. The disclosed compositions may also include one or more co-surfactants such as anionic surfactants and/or non-ionic surfactants, and may be used as a dispersant.

## Claims

### Claim 1

A composition in the form of a nano-dispersion, comprising:
an emulsifier;
an acid;
a salt of the acid;
an ester of the acid; and
water.

### Claim 2 (depends on 1)

The composition of claim 1, wherein the acid is an organic acid.

### Claim 3 (depends on 1)

The composition of claim 1, wherein the acid is lactic acid.

### Claim 4 (depends on 1)

The composition of claim 1, wherein the acid is selected from the group consisting of lactic acid, propionic acid, methyl acetic acid, acetic acid, fumaric acid, citric acid, ascorbic acid, gluconic acid, gluconic delta lactone acid, adipic acid, malic acid, tartaric acid, a hydroxyl acid, salts of any thereof, esters of any thereof, and combinations of any thereof.

### Claim 5 (depends on 1)

The composition of claim 1, wherein the emulsifier is a lecithin selected from the group consisting of crude filtered lecithin, de-oiled lecithin, chemically modified lecithin, enzymatically modified lecithin, standardized lecithin, and combinations of any thereof.

### Claim 6 (depends on 1)

The composition of claim 1, comprising:
the emulsifier from 30% to 80% by weight of the composition;
the acid from 10% to 50% by weight of the composition; and
the water from 10% to 30% by weight of the composition.

### Claim 7 (depends on 1)

The composition of claim 1, comprising less than 5 g/L of volatile organic compounds.

### Claim 8 (depends on 1)

The composition of claim 1, further comprising a surfactant selected from the group consisting of an anionic surfactant, a non-ionic surfactant and combinations of any thereof.

### Claim 9 (depends on 8)

The composition of claim 8, wherein the surfactant has a hydrophilic-lipophilic balance of between 10.0 and 24.0.

### Claim 10 (depends on 8)

The composition of claim 8, wherein the non-ionic surfactant is selected from the group consisting of sorbitan monostearate, polyoxyethylene ester of rosin, polyoxyethylene dodecyl mono ether, polyoxyethylene-polyoxypropylene block copolymer, polyoxyethylene monolaurate, polyoxyethylene monohexadecyl ether, polyoxyethylene monooleate, polyoxyethylene mono(cis-9-octadecenyl)ether, polyoxyethylene monostearate, polyoxyethylene monooctadecyl ether, polyoxyethylene dioleate, polyoxyethylene distearate, polyoxyethylene sorbitan monolaurate polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan trioleate, polyoxyethylene sorbitan tristearate, polyglycerol ester of oleic acid, polyoxyethylene sorbitol hexastearate, polyoxyethylene monotetradecyl ether, polyoxyethylene sorbitol hexaoleate, fatty acids, tall-oil, sorbitol hexaesters, ethoxylated castor oil, ethoxylated soybean oil, rapeseed oil ethoxylate, ethoxylated fatty acids, ethoxylated fatty alcohols, ethoxylated polyoxyethylene sorbitol tetraoleate, glycerol and polyethylene glycol mixed esters, alcohols, polyglycerol esters, monoglycerides, sucrose esters, alkyl polyglycosides, polysorbates, fatty alkanolamides, polyglycol ethers, derivatives of any thereof, and combinations of any thereof.

### Claim 11 (depends on 8)

The composition of claim 8, wherein the anionic surfactant is selected from the group consisting of sodium and potassium salts of straight-chain fatty acids, polyoxyethylenated fatty alcohol carboxylates, linear alkyl benzene sulfonates, alpha olefin sulfonates, sulfonated fatty acid methyl ester, arylalkanesulfonates, sulfosuccinate esters, alkyldiphenylether(di)sulfonates, alkylnaphthalenesulfonates, isoethionates, alkylether sulfates, sulfonated oils, fatty acid monoethanolamide sulfates, polyoxyethylene fatty acid monoethanolamide sulfates, aliphatic phosphate esters, nonylphenolphosphate esters, fluorinated anionics, and combinations of any thereof.

### Claim 12 (depends on 1)

The composition of claim 1, wherein the composition has a viscosity of 1,500 centipoise or less.

### Claim 13 (depends on 1)

The composition of claim 1, further comprising propylene glycol.

### Claim 14

A dispersant composition in the form of a nano-emulsion comprising:
an organic acid;
a salt of the organic acid;
an ester of the organic acid;
an emulsifier; and
water.

### Claim 15 (depends on 14)

The dispersant composition of claim 14, wherein the organic acid is selected from the group consisting of lactic acid, propionic acid, methyl acetic acid, acetic acid, fumaric acid, citric acid, ascorbic acid, gluconic acid, gluconic delta lactone acid, adipic acid, malic acid, tartaric acid, a hydroxyl acid, and combinations of any thereof.

### Claim 16 (depends on 14)

The composition of claim 14, wherein the emulsifier is a lecithin selected from the group consisting of crude filtered lecithin, de-oiled lecithin, chemically modified lecithin, enzymatically modified lecithin, standardized lecithin, and combinations of any thereof.

### Claim 17 (depends on 14)

The composition of claim 14, further comprising a co-surfactant.

### Claim 18 (depends on 14)

The composition of claim 14, wherein the organic acid is lactic acid and the salt of the organic acid is sodium lactate.

### Claim 19 (depends on 18)

The composition of claim 18, wherein the ester of the organic acid is ethyl lactate.