Dispersants having biobased compounds

Patent metadata

Field	Value
Publication number	US-9522369-B2
Application number	US-201615075467-A
Country	US
Kind code	B2
Filing date	Mar 21, 2016
Priority date	May 10, 2011
Publication date	Dec 20, 2016
Grant date	Dec 20, 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 method of dispersing a compound in a solution, the method comprising:
mixing a nano-dispersion with the compound in the solution;
wherein the nano-dispersion comprises:
an emulsifier;
an acid;
a salt of the acid;
an ester of the acid; and
water.

2. The method according to claim 1 , wherein the acid is an organic acid.

3. The method according to 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.

4. The method according to 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.

5. The method according to claim 1 , wherein the compound is a pigment, a colorant, or a combination thereof.

6. The method according to claim 5 , wherein the compound is the pigment, further comprising grinding the pigment and the nano-dispersion.

7. The method according to claim 5 , wherein the pigment is selected from the group consisting of an organic pigment, an inorganic pigment, carbon black, or titanium dioxide.

8. The method according to claim 5 , wherein the solution is a paint or an ink.

9. The method according to claim 8 , wherein the solution is the paint and is water-based.

10. The method according to claim 9 , wherein the paint comprises less than 5 g/L of volatile organic compounds.

11. The method according to claim 1 , wherein the solution is selected from the group consisting of a coating, fiberglass, concrete, ceramic, plastic, composite, textile auxiliary agent, leather finishing agent, plastic compounding agent, lubricant, oilfield drilling additive, emollient, film-former, and mold release agent.

12. A method for dispersing a pigment in a paint, the method comprising:
mixing a nano-dispersion with the pigment, thus forming a pigment dispersion;
wherein the nano-dispersion comprises:
an emulsifier;
an acid;
a salt of the acid;
an ester of the acid; and
water; and

mixing the pigment dispersion with a base, thus producing a paint.

13. The method according to claim 12 , wherein the acid is an organic acid.

14. The method according to claim 12 , 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.

15. The method according to claim 12 , 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.

16. The method according to claim 12 , wherein the pigment is selected from the group consisting of an organic pigment, an inorganic pigment, carbon black, or titanium dioxide.

17. The method according to claim 12 , further comprising grinding the pigment dispersion.

18. The method according to claim 12 , wherein the paint is water based.

19. The method according to claim 12 , wherein the paint comprises a petroleum-based solvent.

20. The method according to claim 12 , wherein the nano-dispersion comprises:
lecithin as the emulsifier;
an organic acid as the acid;
a salt of the organic acid as the salt of the acid;
an ester of the organic acid as the ester of the acid; and
the water.

Assignees

• Archer Daniels Midland Co

Inventors

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

Classifications

• A61K8/37

  Esters of carboxylic acids · CPC title

• C09D7/45

  Anti-settling agents · CPC title

• C08K5/521 Primary

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

• A61K8/361

  Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof · CPC title

• C09D7/20

  Diluents or solvents · CPC title