# US 8,540,973 B2 · Refreshing cream foundation in gel form

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- Number: US 8,540,973 B2
- Document ID: US8540973B2
- Status: Granted
- Kind: B2
- Application number: 12/825,730
- Filed: 2010-06-29
- Published: 2011-01-27
- Granted: 2013-09-24
- Earliest claimed: 2009-06-29
- Assignees: L'oreal
- Applicants: Hy Si Bui; Mohamed Kanji; Chunhua Li; Anita Chon Tong; Bruno Bavouzet; Susan Halpern
- Inventors: Hy Si Bui; Mohamed Kanji; Chunhua Li; Anita Chon Tong; Bruno Bavouzet; Susan Halpern
- Web page: https://patentgrep.com/patent/US8540973B2

## CPC

- A61K 8/84: obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K 8/06: Emulsions
- A61K 8/345: {containing more than one hydroxy group}
- A61K 8/731: {Cellulose; Quaternized cellulose derivatives}
- A61K 8/8164: {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 carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers, e.g. poly (methyl vinyl ether-co-maleic anhydride)}
- A61Q 1/02: Preparations containing skin colorants, e.g. pigments (preparations in powder form A61Q1/12)
- A61Q 1/04: for lips
- A61Q 1/06: Lipsticks
- A61Q 1/10: for eyes, e.g. eyeliner, mascara
- 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

The present invention is directed to a cosmetic composition includes (a) at least one polyamine; (b) at least one oil-soluble polar modified polymer; (c) at least one gelling agent; (d) at least one hyperbranched polyol; and (e) water.

## Claims

### Claim 1

A composition comprising:
a water-insoluble, half acid and half amide crosslinked reaction product comprising (1) at least one oil-soluble polar modified polymer comprising at least one C2-C4 monomer and modified with at least one hydrophilic unit, and having a weight-average molecular weight of less than or equal to 25,000 g/mol and a melting point above 75° C. and (2) at least one polyamine, wherein the reaction product forms a matrix capable of entrapping water;
at least one gelling agent;
at least one hyperbranched polyol; and
water,
wherein the composition is in the form of an emulsion and wherein water is entrapped within the matrix.

### Claim 2 (depends on 1)

The composition of claim 1, further comprising at least one volatile oil.

### Claim 3 (depends on 1)

The composition of claim 1, further comprising at least one non-volatile oil.

### Claim 4 (depends on 1)

The composition of claim 1, wherein the at least one polyamine is a branched polyalkyleneimine.

### Claim 5 (depends on 1)

The composition of claim 1, wherein the polyamine is present in an amount of from about 0.05 to about 20% by weight, based on the weight of the composition.

### Claim 6 (depends on 4)

The composition of claim 4, wherein the polyamine is present in an amount of from about 0.05 to about 20% by weight, based on the weight of the composition.

### Claim 7 (depends on 1)

The composition of claim 1, wherein the oil-soluble polar modified polymer is present in an amount of from about 1% to about 30% by weight, based on the weight of the composition.

### Claim 8 (depends on 5)

The composition of claim 5, wherein the oil-soluble polar modified polymer is present in an amount of from about 1% to about 30% by weight, based on the weight of the composition.

### Claim 9 (depends on 6)

The composition of claim 6, wherein the oil-soluble polar modified polymer is present in an amount of from about 1% to about 30% by weight, based on the weight of the composition.

### Claim 10 (depends on 1)

The composition of claim 1, wherein the oil-soluble polar modified polymer is a polypropylene and/or polyethylene homopolymer or copolymer modified with maleic anhydride units.

### Claim 11 (depends on 1)

The composition of claim 1, wherein water is present in an amount of from about 5 to about 50% by weight, based on the weight of the composition.

### Claim 12 (depends on 1)

The composition of claim 1, wherein the emulsion is in the form of a foundation.

### Claim 13 (depends on 1)

The composition of claim 1, wherein the hyperbranched polyol has a hydroxyl number between 100 and 200.

### Claim 14 (depends on 1)

The composition of claim 1, wherein the hyperbranched polyol has a viscosity between 3,000 and 6,000 cps at 90° F.

### Claim 15 (depends on 1)

The composition of claim 1, wherein the gelling agent is a cellulosic gelling agent.

### Claim 16 (depends on 15)

The composition of claim 15, wherein the cellulosic gelling agent is selected from the group consisting of hydroxyethylcellulose, hydroxypropylcellulose, methylcellulose, ethylhydroxyethylcellulose, carboxymethylcellulose and cellulose.

### Claim 17 (depends on 1)

The composition of claim 1, wherein the cellulosic gelling agent is present in an amount of from about 0.1% to about 10.0% by weight of the total weight of the composition.

### Claim 18 (depends on 1)

The composition of claim 1, further comprising at least one colorant.

### Claim 19

A method of making-up skin, wherein the method comprises applying onto the skin in an amount sufficient to make up the skin a composition comprising:
a water-insoluble, half acid and half amide crosslinked reaction product comprising (1) at least one oil-soluble polar modified polymer comprising at least one C2-C4 monomer and modified with at least one hydrophilic unit, and having a weight-average molecular weight of less than or equal to 25,000 g/mol and a melting point above 75° C. and (2) at least one polyamine, wherein the reaction product forms a matrix capable of entrapping water;
at least one gelling agent;
at least one hyperbranched polyol; and
water,
wherein the composition is in the form of an emulsion and wherein water is entrapped within the matrix.

### Claim 20 (depends on 1)

The composition of claim 1, wherein the weight-average molecular weight of the oil-soluble polar modified polymer is from 1,000 g/mol to 22,000 g/mol.

### Claim 21 (depends on 1)

The composition of claim 1, wherein the melting point of the oil-soluble polar modified polymer is between 90° C. and 160° C.

### Claim 22 (depends on 1)

The composition of claim 1, wherein the oil-soluble polar modified polymer has from about 0.5% to about 10% hydrophilic units by weight with respect to the weight of the oil soluble polar modified polymer.

### Claim 23 (depends on 1)

The composition of claim 1, wherein the oil-soluble polar modified polymer has from about 1% to about 8% hydrophilic units by weight with respect to the weight of the oil soluble polar modified polymer.

### Claim 24 (depends on 22)

The composition of claim 22, wherein the oil-soluble polar modified polymer has from about 0.5% to about 10% maleic anhydride units by weight with respect to the weight of the oil soluble polar modified polymer.

### Claim 25 (depends on 23)

The composition of claim 23, wherein the oil-soluble polar modified polymer has from about 1% to about 8% maleic anhydride units by weight with respect to the weight of the oil soluble polar modified polymer.

### Claim 26 (depends on 1)

The composition of claim 1, wherein the polyamine is polyethyleneimine.

### Claim 27 (depends on 1)

The composition of claim 1, wherein the polyamine is in the form of a branched polymer or a dendrimer.

### Claim 28 (depends on 19)

The method of claim 19, wherein the polyamine is in the form of a branched polymer or a dendrimer.
