# US 2013/0158130 A1 · Polymer combinations for cosmetic preparations

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- Number: US 2013/0158130 A1
- Document ID: US20130158130A1
- Status: Published application
- Kind: A1
- Application number: 13/700,750
- Filed: 2011-05-30
- Published: 2013-06-20
- Earliest claimed: 2010-05-31
- Inventors: Bjoern Heuer; Bente Nissen; Stefanie Von Thaden; Margaret Horten; Manuela Koehler
- Web page: https://patentgrep.com/patent/US20130158130A1

## CPC

- A61K 8/88: Polyamides
- A61K 8/731: {Cellulose; Quaternized cellulose derivatives}
- A61K 8/8111: {Homopolymers or copolymers of aliphatic olefines, e.g. polyethylene, polyisobutene; Compositions of derivatives of such polymers}
- A61K 8/8152: {Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers}
- A61K 8/8176: {Homopolymers of N-vinyl-pyrrolidones. Compositions of derivatives of such polymers}
- A61K 8/86: Polyethers
- A61K 8/87: Polyurethanes
- A61Q 19/00: Preparations for care of the skin
- A61K 2800/48: Thickener, Thickening system
- A61K 2800/548: Associative polymers
- A61K 2800/594: Mixtures of polymers
- 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 invention comprises dermatological or cosmetic preparations comprising a triple combination of anionic polymer and two rheology modifying polymers which increase the viscosity of the preparation by at least 200% at a high shear rate and do not increase the viscosity at a low shear rate by more than 50%, thus imparting an improved sensory richness during spreading, in comparison to preparations without this combination.

## Claims

### Claim at position 1

1-10. (canceled)

### Claim 11

A cosmetic or dermatological preparation, wherein the preparation comprises at least one polymeric anionic thickener and at least two further rheology-modifying polymers.

### Claim 12 (depends on 11)

The preparation of claim 11, wherein the at least two further rheology-modifying polymers increase the viscosity of the preparation at high shear by at least 200% and the viscosity of the preparation at low shear by not more than 50%.

### Claim 13 (depends on 11)

The preparation of claim 11, wherein the preparation comprises not more than 5% by weight of the at least two further rheology-modifying polymers, based on a total weight of the preparation.

### Claim 14 (depends on 13)

The preparation of claim 13, wherein the preparation comprises not more than 2% by weight of the at least two further rheology-modifying polymers.

### Claim 15 (depends on 13)

The preparation of claim 13, wherein the preparation comprises not more than 1% by weight of the at least two further rheology-modifying polymers.

### Claim 16 (depends on 11)

The preparation of claim 11, wherein the at least two further rheology-modifying polymers comprise at least two polymers selected from polymers based on vinylpyrrolidone; associative polyurethanes (HEUR); associative cellulose thickeners (ACT); polyamides of the classes ATPA (tertiary amide terminated polyamides), ETPEA (ester terminated poly(ester-amides), PAOPA (polyalkyleneoxy terminated polyamides), and PEPA (polyester polyamides); polyolefins; and styrene block copolymers (SBC).

### Claim 17 (depends on 11)

The preparation of claim 11, wherein the at least two further rheology-modifying polymers comprise at least two polymers selected from polymers based on vinylpyrrolidone; associative polyurethanes (HEUR); and associative cellulose thickeners (ACT).

### Claim 18 (depends on 11)

The preparation of claim 11, wherein the at least two further rheology-modifying polymers comprise at least two polymers selected from PEG-150/Decyl Alcohol/SMDI Copolymer, PEG-150/Stearyl Alcohol/SMDI Copolymer, Vinyl-pyrrolidone Crosspolymer, Polyamide-3 and C12-16 Alkyl Hydroxyethyl Ethyl-cellulose.

### Claim 19 (depends on 11)

The preparation of claim 11, wherein the at least one polymeric anionic thickener comprises one or more polymers comprising acrylic acid units and/or methacrylic acid units.

### Claim 20 (depends on 19)

The preparation of claim 19, wherein the at least one polymeric anionic thickener comprises one or more polymers selected from ASE (“Alkali Swellable Emulsion”) thickeners and HASE (“Hydrophobically modified Alkali Swellable Emulsion”) thickeners.

### Claim 21 (depends on 11)

The preparation of claim 11, wherein the preparation further comprises at least one active ingredient selected from skin-moisturizing active ingredients and skin-barrier-strengthening active ingredients.

### Claim 22 (depends on 11)

The preparation of claim 11, wherein the preparation is based on an oil-in-water emulsion.

### Claim 23 (depends on 11)

The preparation of claim 11, wherein the preparation comprises at least one polymeric anionic thickener selected from polymers comprising acrylic acid units and/or methacrylic acid units, and not more than 2% by weight, based on a total weight of the preparation, of at least two rheology-modifying polymers comprising at least two polymers selected from polymers based on vinylpyrrolidone; associative polyurethanes (HEUR); associative cellulose thickeners (ACT); polyamides of the classes ATPA (tertiary amide terminated polyamides), ETPEA (ester terminated poly(ester-amides), PAOPA (polyalkyleneoxy terminated polyamides), and PEPA (polyester polyamides); polyolefins; and styrene block copolymers (SBC), and wherein the at least two further rheology-modifying polymers increase the viscosity of the preparation at high shear by at least 200% and the viscosity of the preparation at low shear by not more than 50%.

### Claim 24 (depends on 23)

The preparation of claim 23, wherein the at least one polymeric anionic thickener comprises one or more polymers selected from ASE (“Alkali Swellable Emulsion”) thickeners and HASE (“Hydrophobically modified Alkali Swellable Emulsion”) thickeners.

### Claim 25 (depends on 23)

The preparation of claim 23, wherein the at least two further rheology-modifying polymers comprise at least two polymers selected from polymers based on vinylpyrrolidone; associative polyurethanes (HEUR); and associative cellulose thickeners (ACT).

### Claim 26 (depends on 24)

The preparation of claim 24, wherein the at least two further rheology-modifying polymers comprise at least two polymers selected from PEG-150/Decyl Alcohol/SMDI Copolymer, PEG-150/Stearyl Alcohol/SMDI Copolymer, Vinyl-pyrrolidone Crosspolymer, Polyamide-3 and C12-16 Alkyl Hydroxyethyl Ethyl-cellulose.

### Claim 27 (depends on 23)

The preparation of claim 23, wherein the preparation is based on an oil-in-water emulsion.

### Claim 28

A method of increasing the viscosity of a cosmetic or dermatological preparation comprising at least one polymeric anionic thickener, wherein the method comprises incorporating in the preparation at least two further rheology-modifying polymers which increase the viscosity of the preparation at high shear by at least 200% and at low shear by not more than 50%.

### Claim 29

A method of increasing the richness of a cosmetic or dermatological preparation comprising at least one polymeric anionic thickener upon spreading without increasing the proportion of lipids, wherein the method comprises incorporating in the preparation at least two further rheology-modifying polymers which increase the viscosity of the preparation at high shear by at least 200% and at low shear by not more than 50%.

### Claim 30 (depends on 29)

The method of claim 29, wherein the at least one polymeric anionic thickener is selected from polymers which comprise acrylic acid units and/or methacrylic acid units and the at least two rheology-modifying polymers comprise at least two polymers selected from polymers based on vinylpyrrolidone; associative polyurethanes (HEUR); associative cellulose thickeners (ACT); polyamides of the classes ATPA (tertiary amide terminated polyamides), ETPEA (ester terminated poly(ester-amides), PAOPA (polyalkyleneoxy terminated polyamides), and PEPA (polyester polyamides); polyolefins; and styrene block copolymers (SBC).
