# US 2014/0194337 A1 · Emulsion compositions and a method for selecting surfactants

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2014/0194337 A1
- Document ID: US20140194337A1
- Status: Published application
- Kind: A1
- Application number: 13/737,003
- Filed: 2013-01-09
- Published: 2014-07-10
- Earliest claimed: 2013-01-09
- Assignees: Invista North America S.A.R.L.
- Inventors: RICHARD P. BEATTY
- Web page: https://patentgrep.com/patent/US20140194337A1

## CPC

- C11D 17/0021: {Aqueous microemulsions}
- C11D 1/123: {derived from carboxylic acids, e.g. sulfosuccinates}
- C11D 1/146: {Sulfuric acid esters}
- C11D 1/22: derived from aromatic compounds
- C11D 1/29: Sulfates of polyoxyalkylene ethers
- C11D 3/43: Solvents
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

A method for preparing a microemulsion is disclosed which employs a method based upon identification of the phase behavior of a plurality of components comprising the microemulsion. Further disclosed is a microemulsion composition comprising a first component, coupling agent, and surfactant.

## Claims

### Claim 1

A composition comprising (a) a first liquid phase component selected from the group consisting of water, alcohols, glycols, glycol ethers, hydrocarbons, alkylene carbonates, and esters, or combinations of two or more thereof; (b) a coupling agent selected from the group consisting of one or more aliphatic alcohols, aliphatic glycols, glycol ethers, N-alkyl pyrollidones, dialkyl sulfoxides, triethyl phosphate, and acetone; and (c) an anionic surfactant selected from the group consisting of one or more sulfonates, sulfates, ethoxylated sulfates, sulfosuccinates, or combinations thereof, wherein the components selected from (a), (b) and (c) are different.

### Claim 2 (depends on 1)

The composition of claim 1 wherein the composition is an emulsion and further comprises (d) a second liquid phase, wherein the second liquid phase is different from the first liquid phase and is immiscible in the first liquid phase, and wherein the second liquid phase is selected from the group consisting of water, alcohols, glycols, glycol ethers, hydrocarbons, alkylene carbonates, and esters, or combinations of two or more thereof.

### Claim 3 (depends on 2)

The composition of claim 2 wherein the composition is a microemulsion.

### Claim 4

A composition of matter comprising benzyl alcohol, DOSS and NPG that forms a stable microemulsion when diluted with up to but less than 100 weight percent water.

### Claim 5

A composition comprising benzyl alcohol, DOSS, NPG, and water that does not scatter non-directional light.

### Claim 6

A composition comprising benzyl alcohol, DOSS, NPG, and water that is a microemulsion.

### Claim 7

A composition comprising benzyl alcohol, DOSS, NPG, and water that does not scatter non-directional light but exhibits Tyndall scattering when viewed at an angle with respect to the collimated light beam.

### Claim 8 (depends on 7)

The composition of claim 7 wherein the viewing angle is from about 20 degrees to about 160 degrees with respect to the collimated light beam.

### Claim 9 (depends on 5)

The composition of claim 5 comprising from 10 to 90 weight percent water.

### Claim 10 (depends on 1)

The composition of claim 1 containing from 0.1 to 15 weight percent water.

### Claim 11 (depends on 9)

The composition of claim 9 containing from 0.1 to 10 weight percent water.

### Claim 12 (depends on 10)

The composition of claim 10 containing from 0.1 to 5 weight percent water.