# US 7,612,141 B2 · Hair cleansing composition

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- Number: US 7,612,141 B2
- Document ID: US7612141B2
- Status: Granted
- Kind: B2
- Application number: 11/245,071
- Filed: 2005-10-07
- Published: 2006-02-16
- Granted: 2009-11-03
- Earliest claimed: 2002-12-25
- Assignees: Kao Corporation
- Inventors: Hirokazu Sakai; Hiroto Tanamachi; Yoshimasa Okamoto
- Web page: https://patentgrep.com/patent/US7612141B2

## CPC

- A61K 8/42: Amides
- A61Q 5/02: Preparations for cleaning the hair
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS

## Abstract

Provided is a hair cleansing composition comprising (A) an amphipathic amide lipid, (B) an anionic surfactant and (C) a silicone. The hair cleansing composition of the present invention has advantages such as protecting hair from physical or chemical stimulation and preventing split ends or hair breakage without impairing its cleansing ability and feeling upon use, and moreover, gives to hair after shampooing a pleasant feeling to the touch and moisture retention properties such as natural smoothness, moist feeling, and suppleness which healthy hair inherently possesses, and has excellent stability.

## Claims

### Claim 1

A hair cleansing composition comprising the following components (A) to (C):
(A): an amphipathic amide lipid represented by the formula (1):
wherein, R1 represents a linear or branched C1-12 hydrocarbon group which may be substituted with hydroxy group(s) and/or alkoxy group(s), R2 represents a linear or branched divalent C1-5 hydrocarbon group, and R3 represents a linear or branched divalent C1-22 hydrocarbon group,
(B): an anionic surfactant, and
(C): from 0.005 to 5 wt. % of a silicone,
wherein a weight ratio of Component (A) to Compound (C) is from 1:1 to 1:50.

### Claim 2 (depends on 1)

The hair cleansing composition of claim 1, wherein the silicone is selected from the group consisting of dimethylpolysiloxane, polyether-modified silicones, amino-modified silicones, and mixtures thereof.

### Claim 3 (depends on 1)

The hair cleansing composition of claim 1, wherein the anionic surfactant is selected from the group consisting of alkyl (or alkenyl) sulfates, polyoxyalkylene alkyl (or alkenyl) ether sulfates, alkane sulfonates, olefin sulfonates, alkylbenzene sulfonates, alkyl (or alkenyl) sulfosuccinates, dialkyl (or dialkenyl) sulfosuccinates, polyoxyalkylene alkyl (or alkenyl) sulfosuccinates, alkyl (or alkenyl) ether carboxylates, polyoxyalkylene alkyl (or alkenyl) ether carboxylates, polyoxyalkylene alkyl (or alkenyl) ether phosphates, fatty acid salts, N-acyl glutamates, N-acyl taurates, N-acylmethyltaurine, and mixtures thereof.

### Claim 4 (depends on 1)

The hair cleansing composition of claim 1, comprising from 1 to 50 wt. % of Component (B).

### Claim 5 (depends on 1)

The hair cleansing composition of claim 1, further comprising a surfactant selected from the group consisting of a nonionic surfactant, amphoteric surfactant, and mixtures thereof.

### Claim 6 (depends on 1)

The hair cleansing composition of claim 1, wherein the weight ratio of Component (A) to Compound (C) is from 1:2 to 1:20.

### Claim 7 (depends on 1)

The hair cleansing composition of claim 1, wherein the weight ratio of Component (A) to Compound (C) is from 1:2 to 1:10.

### Claim 8 (depends on 1)

The hair cleansing composition of claim 1, wherein the silicone has a viscosity from 5 mm2/s to 10 million mm2/s.

### Claim 9 (depends on 1)

The hair cleansing composition of claim 1, wherein the silicone is dispersed in the cleansing composition and an average particles size of the silicone is from 0.001 to 200 μm.

### Claim 10 (depends on 4)

The hair cleansing composition of claim 4, comprising from 10 to 22 wt. % of Component (B).

### Claim 11 (depends on 1)

The hair cleansing composition of claim 1, comprising from 0.1 to 2 wt. % of the silicone.