Cleansing composition comprising a nonionic and cationic surfactant mixture and a cationic antibacterial agent

Patent metadata

Field	Value
Publication number	US-12194128-B2
Application number	US-202117348411-A
Country	US
Kind code	B2
Filing date	Jun 15, 2021
Priority date	Sep 26, 2013
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

An aqueous cleansing composition comprising a cationic surfactant, a nonionic surfactant, and a thickener comprising an alkoxylated methyl glucose ether, wherein a weight ratio of cationic surfactant to nonionic surfactant is greater than 0.9:1. The combination of the cationionic:nonionic surfactant ratio with the alkoxylated methyl glucose ether thickener provides the composition with cold weather stability. Cold weather stability is observed when the composition remains transparent after cold storage.

First claim

What is claimed is:

1. An aqueous cleansing composition comprising:
A) a cationic antibacterial agent selected from the group consisting of benzalkonium chloride, benzethonium chloride, and mixtures thereof; wherein the cationic antibacterial agent is present in an amount of greater than zero but no more than 0.13 weight % of the composition;
B) a cationic surfactant different from the antibacterial agent;
C) a nonionic surfactant mixture comprising an amine oxide and a fatty acid amide;
D) from 0.54 to 0.6% by weight of a PEG-120 methyl glucose dioleate thickener, wherein:
i) the weight ratio of the cationic surfactant to the nonionic surfactant is greater than 0.9:1 to keep the composition clear after cold storage; and
ii) the composition has a viscosity over 4000 mPas.

2. The cleansing composition according to claim 1 , wherein the cationic antibacterial agent comprises benzalkonium chloride.

3. The cleaning composition according to claim 1 , wherein the thickener further comprises PEG-150 distearate.

4. The cleansing composition according to claim 1 , wherein the cationic surfactant comprises a quaternary ammonium alkyl salt.

5. The cleansing composition according to claim 4 , wherein the cationic surfactant comprises cetyl trimethyl ammonium chloride.

6. The cleansing composition according to claim 1 , wherein the nonionic surfactant comprises lauryl/myristyl amidopropyl dimethylamine oxide and cocomonoethanolamide.

7. The cleansing composition according to claim 1 , wherein the thickener is present in an amount of 0.54 or 0.6 weight % of the composition.

8. The cleansing composition according to claim 1 , wherein the cationic surfactant is present in an amount of 0.1 to 20 weight % of the composition.

9. The cleansing composition according to claim 1 , wherein the nonionic surfactant is present in an amount of 0.1 to 20 weight % of the composition.

10. The cleaning composition according to claim 1 , further comprising a salt.

11. The cleansing composition according to claim 1 , wherein the composition is substantially free of a polyacrylate.

12. The cleansing composition according to claim 1 , wherein the composition is transparent after 24 hours at 4.5° C.

13. A method of cleansing skin comprising applying the cleansing composition according to claim 1 , to a skin surface of a subject in need thereof; and optionally rinsing the skin surface with water.

Assignees

• Colgate Palmolive Co

Inventors

• Hardy Eugene
• Holerca Marian
• Ahmed Rabab
• Arvanitidou Evangelia

Classifications

• A61K8/42

  Amides · CPC title

• A61K8/41

  Amines · CPC title

• A61K2800/30

  Characterized by the absence of a particular group of ingredients · CPC title

• A61K2800/48

  Thickener, Thickening system · CPC title

• A61K2800/596

  Mixtures of surface active compounds · CPC title