Use of an alcohol hybrid to modify the rheology of polyethoxylated alcohol sulfates

Patent metadata

Field	Value
Publication number	US-10934254-B2
Application number	US-201715831518-A
Country	US
Kind code	B2
Filing date	Dec 5, 2017
Priority date	Dec 5, 2017
Publication date	Mar 2, 2021
Grant date	Mar 2, 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, a mono-alcohol, and a polyol. The two alcohols 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 a mono-alcohol and a polyol simultaneously. 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:
a polyethoxylated alcohol sulfate having Formula (I):
R′—O—(C2H4O) n -SO3M′  (I)

wherein R′ is C10-C18 alkyl, n is from 1 to 15, and M′ is sodium, potassium, ammonium, alkylammonium, or alkanolammonium,
ethanol,
a polyol chosen from the group consisting of polyethylene glycol, propylene glycol, glycerine, and combinations thereof, and
water;
wherein the polyethoxylated alcohol sulfate is present in an amount ranging from about 20% to about 80% by weight of the blend; and
wherein the polyethoxylated alcohol sulfate, the ethanol, and the polyol are present in a weight ratio of actives of 7:1:2 to 7:1:3.

2. The polyethoxylated alcohol sulfate blend of claim 1 , wherein the polyethoxylated alcohol sulfate is sodium laureth ether sulfate (SLES).

3. The polyethoxylated alcohol sulfate blend according to claim 1 , wherein the polyol is PEG 400.

4. The polyethoxylated alcohol sulfate blend according to claim 1 , consisting of the polyethoxylated alcohol sulfate, the water, the ethanol, and the polyol.

5. The polyethoxylated alcohol sulfate blend according to claim 1 , having a viscosity of less than 100 Pa·S over a shear rate between 0.41 to 10 1/s at 20° C.

6. The polyethoxylated alcohol sulfate blend according to claim 1 , having a viscosity of less than 26 Pa·S over a shear rate between 0.41 to 10 1/s at 20° C.

7. The polyethoxylated alcohol sulfate blend of claim 1 , wherein the polyethoxylated alcohol sulfate is sodium laureth ether sulfate and the polyol is polyethylene glycol 400.

8. The polyethoxylated alcohol sulfate blend of claim 1 , wherein the polyethoxylated alcohol sulfate is sodium laureth ether sulfate, the polyol is propylene glycol and the sodium laureth ether sulfate, the ethanol, and the propylene glycol are present in a weight ratio of actives of 7:1:2.

9. The polyethoxylated alcohol sulfate blend of claim 1 , wherein the polyethoxylated alcohol sulfate is sodium laureth ether sulfate, the polyol is glycerine and the sodium laureth ether sulfate, the ethanol, and the glycerine are present in a weight ratio of actives of 7:1:2.

10. The polyethoxylated alcohol sulfate blend of claim 4 , wherein the polyethoxylated alcohol sulfate is sodium laureth ether sulfate and the polyol is polyethylene glycol 400.

11. The polyethoxylated alcohol sulfate blend of claim 4 , wherein the polyethoxylated alcohol sulfate is sodium laureth ether sulfate, the polyol is propylene glycol and the sodium laureth ether sulfate, the ethanol, and the propylene glycol are present in a weight ratio of actives of 7:1:2.

12. The polyethoxylated alcohol sulfate blend of claim 4 , wherein the polyethoxylated alcohol sulfate is sodium laureth ether sulfate, the polyol is glycerine and the sodium laureth ether sulfate, the ethanol, and the glycerine are present in a weight ratio of actives of 7:1:2.

13. The polyethoxylated alcohol sulfate blend of claim 1 , wherein the polyol is chosen from the group consisting of propylene glycol, glycerine, and combinations thereof.

Assignees

• Henkel IP & Holding GmbH

Inventors

• Piorkowski Daniel Thomas
• Stott Ii David S

Classifications

• C11D1/29 Primary

  Sulfates of polyoxyalkylene ethers · CPC title

• C11D3/2017

  branched · CPC title

• C11D3/201

  linear · CPC title

• C11D3/2048

  branched · CPC title

• C11D3/2044

  linear · CPC title