Liquid hand soaps and body washes

Patent metadata

Field	Value
Publication number	US-9820924-B2
Application number	US-201315038240-A
Country	US
Kind code	B2
Filing date	Nov 22, 2013
Priority date	Nov 22, 2013
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

The disclosure provides a liquid hand soap or body wash, comprising (i) a surfactant system comprising C 8-18 alkyl-ether sulfate, cocamidopropyl betaine (CAPB), and N-(2 hydroxyethyl) fatty acid amide; (ii) a polyethylene oxide-polypropylene oxide block copolymer; and (iii) one or more polyalkoxylated mono- or di-fatty acid esters or amides, the composition allowing reduced surfactant levels, while still having good rheological properties.

First claim

What is claimed is:

1. A composition that is a liquid hand soap or liquid body wash, comprising:
a surfactant system comprising C 8-18 alkyl-ether sulfate, cocamidopropyl betaine, and N-(2-hydroxyethyl) fatty acid amide;
a polyethylene oxide-polypropylene oxide block copolymer; and
one or more polyalkoxylated mono- or di-fatty acid esters or amides,
wherein the C 8-18 alkyl-ether sulfate is present in an amount of from about 5.5 to about 6.5 weight % based on a total weight of the composition,
wherein the cocamidopropyl betaine is present in an amount of from about 1.5 to about 2.4 weight % based on a total weight of the composition,
wherein the N-(2-hydroxyethyl) fatty acid amide is present in an amount of from about 0.2 to about 0.5 weight % based on a total weight of the composition, and
wherein the composition has a zero-shear viscosity of from about 3,000 to about 4,000 mPas.

2. The composition of claim 1 , wherein the C 8-18 alkyl-ether sulfate comprises a compound of formula CH 3 (CH 2 ) m CH 2 (OCH 2 CH 2 ) n OSO 3 X, wherein m is 6-16; n is 1-6; and X is Na or K.

3. The composition of claim 1 , wherein the N-(2-hydroxyethyl) fatty acid amide comprises cocamide monoethanolamine.

4. The composition of claim 1 , wherein the polyethylene oxide-polypropylene oxide block copolymer has a formula (EO)x(PO)y(EO)z with x=8-14, z=8-14 and y=16-26.

5. The composition of claim 1 , wherein the one or more polyalkoxylated mono- or di-fatty acid esters or amides are selected from the group consisting of (C 2 -C 4 )alkoxylated mono(C 2 -C 3 )alkanol isostearamide, polyethoxylated glyceryl fatty acid esters, polyethoxylated esters of fatty acids and saccharides, and combinations thereof.

6. The composition of claim 5 , wherein the one or more polyalkoxylated mono- or di-fatty acid esters or amides are selected from the group consisting of PPG-2 hydroxyethyl coco/isostearamide, PEG-18 glyceryl oleate/cocoate, PEG-7 glyceryl cocoate, PEG-120 methyl glucose dioleate, and combinations thereof.

7. The composition of claim 6 , wherein the one or more polyalkoxylated mono- or di-fatty acid esters or amides comprise PEG-120 methyl glucose dioleate.

8. The composition of claim 1 , wherein the surfactant system comprises sodium lauryl ether sulfate, cocamidopropyl betaine and cocamide monoethanolamine.

9. The composition of claim 1 , wherein:
the surfactant system comprises sodium lauryl ether sulfate, cocamidopropyl betaine and cocamide monoethanolamine;
the polyethylene oxide-polypropylene oxide block copolymer is (EO)x(PO)y(EO)z with x=8-14, z=8-14 and y=16-26; and
the one or more polyalkoxylated mono- or di-fatty acid esters or amides are selected from the group consisting of PPG-2 hydroxyethyl coco/isostearamide, PEG-18 glyceryl oleate/cocoate, PEG-7 glyceryl cocoate, PEG-120 methyl glucose dioleate, and combinations thereof.

10. The composition of claim 1 , further comprising a polyquaternium compound.

11. The composition of claim 1 , further comprising at least 70 weight % water.

12. The composition of claim 1 , wherein the total amount of surfactant is 5 to 9 weight %.

13. The composition of claim 1 , wherein the amount of the polyethylene oxide-polypropylene oxide block copolymer is 0.01 to 0.15 weight %.

14. The composition of claim 1 , wherein the composition does not include an alkylpolyglucoside surfactant.

15. The composition of claim 1 , wherein the micelle relaxation time of the composition is less than 0.06 seconds.

16. The composition of claim 1 , wherein the composition is a clear liquid hand soap.

Assignees

• Colgate Palmolive Co

Inventors

• Pimenta Paloma
• Carlone Darrick
• Alvarado Emma
• Harmalker Subhash
• Holerca Marian N
• Arvanitidou Evangelia S

Classifications

• A61K8/817

  Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions or derivatives of such polymers, e.g. vinylimidazol, vinylcaprolactame, allylamines (Polyquaternium 6) · CPC title

• A61K8/416 Primary

  Quaternary ammonium compounds (A61K8/35 takes precedence) · CPC title

• A61K8/86

  Polyethers · CPC title

• A61K8/447

  containing sulfur · CPC title

• A61K8/608

  Derivatives containing from 2 to 10 oxyalkylene groups · CPC title