# US 5,702,692 A · Hair composition

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- Number: US 5,702,692 A
- Document ID: US5702692A
- Status: Granted
- Kind: A
- Application number: 08/808,766
- Filed: 1997-03-03
- Granted: 1997-12-30
- Earliest claimed: 1997-03-03
- Assignees: Colgate-Palmolive Company
- Inventors: Eugene E. Hardy; Anthony Psihoules
- Web page: https://patentgrep.com/patent/US5702692A

## CPC

- A61K 8/8182: {Copolymers of vinyl-pyrrolidones. Compositions of derivatives of such polymers}
- A61K 8/046: {Aerosols; Foams}
- A61K 8/8152: {Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers}
- A61Q 5/06: Preparations for styling the hair, e.g. by temporary shaping or colouring
- 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 sprayable hair fixing composition having the following components or reaction products comprising a) from about 0.5 to about 10 wt. % of a high molecule weight copolymer of polyvinylpyrrolidine and vinylacetate, the weight average molecular weight of said polymer being at least about 200,000, b) from about 0.5 to about 8 wt. % of at least about 80 wt. % neutralized copolymer of tertiary butylacrylate, ethyl acrylate and methacrylic acid, and c) a solvent system compatible with the combination of copolymer a and copolymer b, the wt. % of a and b in the range of about 1:4 to about 4:1.

## Claims

### Claim 1

A sprayable hair fixing composition having the following components or reaction products comprising
a) from about 0.5 to about 10 wt. % of a high molecular weight copolymer of polyvinylpyrrolidine and vinylacetate, the weight average molecular weight of said polymer being at least about 200,000,
b) from about 0.5 to about 8 wt. % of at least about 80 wt. % neutralized copolymer of tertiary butylacrylate, ethyl acrylate and methacrylic acid, and
c) a solvent system compatible with the combination of copolymer a and copolymer b, the wt. % of a and b in the range of about 1:4 to about 4:1.

### Claim 2 (depends on 1)

The composition in accordance with claim 1 wherein copolymer a has a weight average molecular weight of at least about 400,000.

### Claim 3 (depends on 1)

The composition in accordance with claim 1 wherein the weight average molecular weight of copolymer a is not above about 800,000.

### Claim 4 (depends on 1)

The composition in accordance with claim 1 wherein copolymer a has from about 20 to about 50 wt. % vinylpyrrolidine and about 80 to about 50 wt. % vinyl acetate.

### Claim 5 (depends on 4)

The composition in accordance with claim 4 wherein the vinylpyrrolidine is from about 25 to about 40 wt. % and the vinyl acetate is from about 75 to about 60 wt. %.

### Claim 6 (depends on 1)

The composition in accordance with claim 1 wherein copolymer a is present in the composition in quantities of about 1 to about 6 wt. %.

### Claim 7 (depends on 1)

The composition in accordance with claim 1 wherein copolymer b is at least about 90 wt. % neutralized.

### Claim 8 (depends on 1)

The composition in accordance with claim 1 wherein copolymer b is present in the composition in quantities of from about 1 to about 6 wt. %.

### Claim 9 (depends on 1)

The composition in accordance with claim 1 wherein alcohol or a combination of alcohol and water is present.

### Claim 10 (depends on 9)

The composition in accordance with claim 9 wherein alcohol is about 10 to about 90 wt. %.

### Claim 11 (depends on 10)

The composition in accordance with claim 10 wherein water is zero to about 20 wt. % of the composition.

### Claim 12 (depends on 1)

The composition in accordance with claim 1 wherein the pH of the composition is between about 4.5 and about 9.5.

### Claim 13 (depends on 1)

The composition in accordance with claim 1 which can be an aerosol and has a propellent therein.

### Claim 14 (depends on 13)

The composition in accordance with claim 13 wherein the propellant is about 5 to about 75 wt. % of the total composition.

### Claim 15

A product which comprises the composition prepared by contacting in any order
a) from about 0.5 to about 10 wt. % of a high molecular weight copolymer of polyvinylpyrrolidine and vinylacetate, the weight average molecular weight of said polymer being at least about 200,000,
b) from about 0.5 to about 8 wt. % of at least about 80 wt. % neutralized copolymer of tertiary butylacrylate, ethyl acrylate and methacrylic acid, and
c) a solvent system compatible with the combination of copolymer a and copolymer b, the wt. % of a and b in the range of about 1:4 to about 4:1.
