Dispersants having biobased compounds

Patent metadata

Field	Value
Publication number	US-9517442-B2
Application number	US-201615075452-A
Country	US
Kind code	B2
Filing date	Mar 21, 2016
Priority date	May 10, 2011
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

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.

First claim

What is claimed is:

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.

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

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

4. 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.

5. 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.

6. 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.

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

8. 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.

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

10. 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.

11. 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.

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

13. The composition of claim 1 , further comprising propylene glycol.

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.

15. 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.

16. 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.

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

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

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

Assignees

• Archer Daniels Midland Co

Inventors

• Baseeth Shireen S
• Tabuena-Salyers Teodora R
• Sebree Bruce R

Classifications

• C04B24/003

  Phosphorus-containing compounds · CPC title

• C09D7/20

  Diluents or solvents · CPC title

• A61K2800/413

  Nanosized, i.e. having sizes below 100 nm · CPC title

• C08K5/521 Primary

  Esters of phosphoric acids, e.g. of H3PO4 · CPC title

• C09D17/004

  containing an inorganic pigment · CPC title