# US 7,608,252 B2 · Shave gel composition containing polyglyceryl ester surfactant

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- Number: US 7,608,252 B2
- Document ID: US7608252B2
- Status: Granted
- Kind: B2
- Application number: 10/199,407
- Filed: 2002-07-19
- Published: 2004-01-22
- Granted: 2009-10-27
- Earliest claimed: 2002-07-19
- Assignees: The Gillette Company
- Inventors: Alexander Novikov; Stephen H. Thong
- Web page: https://patentgrep.com/patent/US7608252B2

## CPC

- A61K 8/042: {Gels}
- A61K 8/046: {Aerosols; Foams}
- A61K 8/39: Derivatives containing from 2 to 10 oxyalkylene groups
- A61K 8/45: Derivatives containing from 2 to 10 oxyalkylene groups
- A61K 8/86: Polyethers
- A61Q 9/02: Shaving preparations
- 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

Disclosed is a shaving composition in the form of a post-foaming gel that contains a polyglyceryl fatty ester surfactant. In particular the shaving composition comprises, in percent by weight, about 60% to about 93%, preferably about 70% to about 85%, water, about 2% to about 25%, preferably about 5% to about 20%, water dispersible (or soluble) surface active agent capable of forming a lather, about 1% to about 6%, preferably about 2% to about 5%, volatile post-foaming agent, and about 0.5% to about 5%, preferably about 1% to about 3%, polyglyceryl fatty ester surfactant.

## Claims

### Claim 1

A shaving composition in the form of a post-foaming gel comprising, in percent by weight, about 60% to about 93% water, about 2% to about 25% water dispersible surface active agent capable of forming a lather, about 2% to about 5% volatile post-foaming agent, and 0.5% to 5% polyglyceryl fatty ester surfactant, wherein the polyglyceryl fatty ester surfactant has the formula
wherein n is 4 to 10, and X is a hydrogen atom or a long chain acyl group derived from a C12-22 fatty acid or an N-fatty acyl-neutral amino acid, provided that at least one X is a long chain acyl group and no more than three X's are long chain acyl groups.

### Claim 2 (depends on 1)

The shaving composition of claim 1 wherein the polyglyceryl fatty ester surfactant comprises a polyglyceryl C12-22 fatty acid ester or a polyglyceryl N-fatty acyl aminoacid ester.

### Claim 3 (depends on 1)

The shaving composition of claim 1 wherein, with respect to the polyglyceryl fatty ester surfactant, the long chain acyl group is derived from a C12-22 fatty acid.

### Claim 4 (depends on 1)

The shaving composition of claim 1 wherein, with respect to the polyglyceryl fatty ester surfactant, the long chain acyl group is selected from lauroyl, myristoyl, palmitoyl, stearoyl, isostearoyl, oleoyl, linoleoyl, and behenoyl.

### Claim 5 (depends on 1)

The shaving composition of claim 1 wherein, with respect to the polyglyceryl fatty ester surfactant, the long chain acyl group is derived from an N-fatty acyl-neutral amino acid wherein the neutral amino acid is selected from glycine, alanine, βalanine, aminobutyric acid, αaminobutyric acid, N-methyl-β-alanine, and sarcosine.

### Claim 6 (depends on 5)

The shaving composition of claim 5 wherein, with respect to the polyglyceryl fatty ester surfactant, the long chain acyl group is N-fatty acyl-sarcosyl.

### Claim 7 (depends on 1, 3, 4, 5, 6)

The shaving composition of claim 1, 3, 4, 5 or 6 wherein, with respect to the polyglyceryl fatty eater surfactant, n is 4 to 8 and no more than two X's are long chain acyl groups.

### Claim 8 (depends on 1)

The shaving composition of claim 1 wherein the polyglyceryl fatty ester surfactant has an HLB of at least 10 greater.

### Claim 9

The shaving composition of claim where the polyglyceryl fatty ester surfactant comprises polyglyceryl-10 oleate.

### Claim 10 (depends on 1, 3, 4, 9)

The shaving composition of claim 1,3, 4 or 9 wherein the composition comprises, in percent by weight, about 70% to about 85% water, about 5% to about 20% water dispersible surface active agent capable of forming a lather, about 2% to about 5% volatile post-foaming agent, and about 1% to about 3% of a polyglyceryl fatty ester surfactant.

### Claim 11 (depends on 10)

The shaving composition of claim 10 wherein the water dispersible surface active agent comprises a soap.

### Claim 12 (depends on 1, 3, 4, 9)

The shaving composition of claim 1, 3, 4 or 9 additionally comprising one or more materials selected from the group consisting of a sorbitan fatty ester, a sucrose fatty ester, an ester of a fatty acid and a fatty alcohol, and a propoxylated fatty amide.