Microemulsions and their use in metal working fluids, wood stains, or wood sealers

Patent metadata

Field	Value
Publication number	US-10240112-B2
Application number	US-201515316666-A
Country	US
Kind code	B2
Filing date	Jun 5, 2015
Priority date	Jun 6, 2014
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

The present disclosure is directed to compositions including a microemulsion comprising a blend of lecithin, a co-surfactant, and a salt of an acidifier, an ester of an acidifier, or combinations thereof. Uses of the compositions are also disclosed.

First claim

What is claimed is:

1. A method of dispersing an oil in a metal working fluid comprising:
mixing 10-50% by weight of an oil selected from the group consisting of a methyl ester, a high oleic canola oil, an epoxidized vegetable oil, and combinations of any thereof, with 50-90% by weight of a microemulsion concentrate comprising:
a) lecithin;
b) a co-surfactant;
c) a salt of an acidifier, and
d) an ester of an acidifier, thus forming a microemulsion; and
dispersing the microemulsion in a polar solvent and a non-ionic surfactant different from the surfactant of the microemulsion.

2. The method according to claim 1 , further comprising mixing the polar solvent and the microemulsion with a non-polar solvent.

3. A method of adding an oil to a wood stain or wood sealer, the method comprising:
A) mixing the oil with a microemulsion concentrate comprising:
a) lecithin;
b) co-surfactant;
c) a salt of an acidifier, and
d) an ester of an acidifier, thus forming a microemulsion; and
B) mixing the oil and microemulsion with an oil stain or a wood sealer, wherein the oil stain comprises water, a biocide, a defoamer, and a water-soluble or oil-soluble wood preservative, and the wood sealer comprises water, a biocide, a defoamer, a wax, and a water-soluble or oil-soluble wood preservative.

4. The method of claim 3 , wherein the co-surfactant is selected from the group consisting of fatty acid ethoxylate, fatty acids, and the combination thereof.

5. The method of claim 3 , wherein the oil is selected from the group consisting of linseed oil, soy methyl ester, coconut oil, soybean oil, high oleic oils, mineral oil, limonene, canola oil, sunflower oil, corn oil, tall oil, tung oil, mineral oil, epoxidized vegetable oil, petroleum solvents, alkyds, cedar wood oil, any oil of wide fatty acid profile, and combinations of any thereof.

Assignees

• Archer Daniels Midland Co

Inventors

• Baseeth Shireen

Classifications

• A61L9/00

  Disinfection, sterilisation or deodorisation of air (body deodorants A61Q15/00; purifying air by respirators A62B, A62D9/00; separating dispersed particles from gases or vapours B01D45/00 - B01D51/00, B03C3/00; chemical or biological purification of waste gases B01D53/34; production of ozone C01B13/10; air-conditioning systems incorporating sterilisation F24F3/16, F24F8/20) · CPC title

• B01F2003/0834

  Operations & Transport · mapped topic

• A61K9/107

  Emulsions {; Emulsion preconcentrates; Micelles (composition of emulsions A61K47/00)} · CPC title

• C09D7/00

  Features of coating compositions, not provided for in group C09D5/00 (driers C09F9/00); Processes for incorporating ingredients in coating compositions · CPC title

• B27K3/00

  Impregnating wood, {e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process}(dyeing, staining B27K5/00) · CPC title