Use of an ionic liquid and alcohol blend to modify the rheology of polyethoxylated alcohol sulfates

Patent metadata

Field	Value
Publication number	US-11028342-B2
Application number	US-201715831500-A
Country	US
Kind code	B2
Filing date	Dec 5, 2017
Priority date	Dec 5, 2017
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

Abstract

In one embodiment, a polyethoxylated alcohol sulfate composition is provided which includes a polyethoxylated alcohol sulfate, such as sodium laureth ether sulfate (SLES), water, an ionic liquid, and an alcohol. The ionic liquid and the alcohol form a synergistic blend, enabling a significant reduction of the viscosity of the polyethoxylated alcohol sulfate composition. Also provided is an embodiment of a method for modifying the rheology of polyethoxylated alcohol sulfate by use of an ionic liquid and alcohol blend. Finally provided is an embodiment of a detergent composition which is prepared by use of the polyethoxylated alcohol sulfate composition described herein, in addition to other commonly known ingredients.

First claim

What is claimed is:

1. A polyethoxylated alcohol sulfate blend consisting essentially of:
sodium laureth ether sulfate (SLES),
ethanol,
tris(2-hydroxyethyl) methyl-ammonium methyl sulfate, and
water;
wherein the sodium laureth ether sulfate is present in an amount ranging from about 20% to about 80% by weight of the blend,
wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:12 to about 6:18, and
wherein the blend does not include any component other than the sodium laureth ether sulfate, the water, the ethanol, and the tris(2-hydroxyethyl) methyl-ammonium methyl sulfate.

2. The polyethoxylated alcohol sulfate blend according to claim 1 , wherein the sodium laureth ether sulfate (SLES) and water have a weight ratio of 7:3.

3. A detergent composition comprising the polyethoxylated alcohol sulfate blend according to claim 1 .

4. The detergent composition according to claim 3 , wherein the detergent composition is enclosed in a pouch made of a water-soluble polymer film.

5. The polyethoxylated alcohol sulfate blend according to claim 1 , wherein the sodium laureth ether sulfate is present in an amount of about 60% by weight of the blend.

6. The polyethoxylated alcohol sulfate blend according to claim 5 , wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:12.

7. The polyethoxylated alcohol sulfate blend according to claim 5 , wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:18.

8. The polyethoxylated alcohol sulfate blend according to claim 1 , wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:12.

9. The polyethoxylated alcohol sulfate blend according to claim 1 , wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:18.

10. The detergent composition according to claim 3 , wherein the sodium laureth ether sulfate is present in the blend in an amount of about 60% by weight of the blend.

11. The detergent composition according to claim 10 , wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:12.

12. The detergent composition according to claim 10 , wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:18.

13. The detergent composition according to claim 3 , wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:12.

14. The detergent composition according to claim 3 , wherein the ethanol is present with the tris(2-hydroxyethyl) methyl-ammonium methylsulfate in a weight ratio of about 6:18.

15. A detergent composition comprising the polyethoxylated alcohol sulfate blend according to claim 2 that is enclosed in a pouch made of a water-soluble polymer film.

16. A detergent composition comprising the polyethoxylated alcohol sulfate blend according to claim 5 that is enclosed in a pouch made of a water-soluble polymer film.

17. A detergent composition comprising the polyethoxylated alcohol sulfate blend according to claim 6 that is enclosed in a pouch made of a water-soluble polymer film.

18. A detergent composition comprising the polyethoxylated alcohol sulfate blend according to claim 7 that is enclosed in a pouch made of a water-soluble polymer film.

19. A detergent composition comprising the polyethoxylated alcohol sulfate blend according to claim 8 that is enclosed in a pouch made of a water-soluble polymer film.

20. A detergent composition comprising the polyethoxylated alcohol sulfate blend according to claim 9 that is enclosed in a pouch made of a water-soluble polymer film.

Assignees

• Henkel IP & Holding GmbH

Inventors

• Piorkowski Daniel Thomas
• Stott Ii David S

Classifications

• C11D1/29 Primary

  Sulfates of polyoxyalkylene ethers · CPC title

• C11D11/0094

  Process for making liquid detergent compositions, e.g. slurries, pastes or gels · CPC title

• C11D3/2017

  branched · CPC title

• C11D3/2006

  Monohydric alcohols · CPC title

• C11D3/2013

  fatty or with at least 8 carbon atoms in the alkyl chain · CPC title