# US 9,867,769 B2 · Viscosity building composition for personal care products

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- Number: US 9,867,769 B2
- Document ID: US9867769B2
- Status: Granted
- Kind: B2
- Application number: 15/076,853
- Filed: 2016-03-22
- Published: 2016-09-29
- Granted: 2018-01-16
- Earliest claimed: 2015-03-27
- Assignees: Arch Personal Care Products, L.P.
- Applicants: Arch Personal Care Products, LP
- Inventors: Guojin Lu; Khat Kevin Lou; Joseph LiBrizzi; Mark Garrison
- Web page: https://patentgrep.com/patent/US9867769B2

## CPC

- A61K 8/86: Polyethers
- A61K 8/342: {Alcohols having more than seven atoms in an unbroken chain}
- A61K 8/58: containing atoms other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur or phosphorus
- A61K 8/85: Polyesters
- A61Q 5/02: Preparations for cleaning the hair
- A61Q 19/00: Preparations for care of the skin
- A61Q 19/10: Washing or bathing preparations
- A61K 2800/48: Thickener, Thickening system
- 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

A viscosity building composition is described. The viscosity building composition comprises a fatty alcohol in combination with one or more polyglyceryl esters. In one embodiment, the composition contains a fatty alcohol in combination with a polyglyceryl monoester. In an alternative embodiment, the composition contains a fatty alcohol combined with a polyglyceryl polyester, such as a polyglyceryl diester or a polyglyceryl triester. In still another embodiment, the composition comprises a fatty alcohol mixed with a blend of polyglyceryl esters. The blend may include at least one polyglyceryl monoester in combination with at least one polyglyceryl polyester, such as a diester, triester, tetraester or decaester. The polyglyceryl polyester is present generally in an amount greater than the monoester. In an alternative embodiment, the blend may include two or more polyglyceryl polyesters. The blend of polyglyceryl esters has been found to dramatically enhance the ability of the fatty alcohol to increase viscosity and build body in personal care products.

## Claims

### Claim 1

A viscosity building composition comprising:
a fatty alcohol;
a polyglyceryl monoester of a fatty acid; and
a polyglyceryl polyester of a fatty acid,
wherein the weight ratio of the polyglyceryl monoester of a fatty acid to the polyglyceryl polyester of a fatty acid in the composition is from about 1:100 to about 100:1, and
wherein the weight ratio of the fatty alcohol to all of the polyglyceryl esters is from about 1:10 to about 10:1.

### Claim 2 (depends on 1)

A viscosity building composition as defined in claim 1, wherein the weight ratio of the polyglyceryl monoester of a fatty acid to the polyglyceryl polyester of a fatty acid is from about 1:50 to about 1:1.

### Claim 3 (depends on 1)

A viscosity building composition as defined in claim 1, wherein the polyglyceryl monoester of a fatty acid and the polyglyceryl polyester of a fatty acid are polyglyceryl esters of fatty acids having a carbon chain length of from about 6 carbon atoms to about 26 carbon atoms.

### Claim 4 (depends on 1)

A viscosity building composition as defined in claim 1, wherein the polyglyceryl monoester of a fatty acid to the polyglyceryl polyester of a fatty acid each contain from about 2 to about 12 molecules of glycerol per compound.

### Claim 5 (depends on 1)

A viscosity building composition as defined in claim 1, wherein the polyglyceryl monoester of a fatty acid comprises polyglyceryl monostearate, polyglyceryl monodecaoleate, polyglyceryl monooleate, and mixtures thereof.

### Claim 6 (depends on 1)

A viscosity building composition as defined in claim 1, wherein the fatty alcohol comprises cetyl alcohol, stearyl alcohol, lauryl alcohol, myristyl alcohol, behenyl alcohol, or mixtures thereof.

### Claim 7 (depends on 1)

A personal care product containing the viscosity building composition as defined in claim 1.

### Claim 8 (depends on 7)

A personal care product as defined in claim 7, wherein the personal care product contains an emollient, a humectant, and at least one surfactant.

### Claim 9 (depends on 8)

A personal care product as defined in claim 8, wherein the product contains the fatty alcohol in an amount less than about 5% by weight, and wherein the polyglyceryl monoester of a fatty acid and the polyglyceryl polyester of a fatty acid are both contained in the product in an amount greater than about 0.5% by weight, and in an amount less than about 10% by weight.

### Claim 10 (depends on 7)

A personal care product as defined in claim 7, wherein the personal care product comprises a shampoo.

### Claim 11 (depends on 10)

A personal care product as defined in claim 10, further comprising pyrithione.