# US 9,750,679 B2 · Composition for the permanent shaping of human hair

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- Number: US 9,750,679 B2
- Document ID: US9750679B2
- Status: Granted
- Kind: B2
- Application number: 12/145,206
- Filed: 2008-06-24
- Published: 2009-01-01
- Granted: 2017-09-05
- Earliest claimed: 2007-06-26
- Assignees: Kao Germany GmbH
- Applicants: Jonathan Wood; Britta Punsch; Jörg Schneider
- Inventors: Jonathan Wood; Britta Punsch; Jörg Schneider
- Web page: https://patentgrep.com/patent/US9750679B2

## CPC

- A61K 8/898: containing nitrogen, e.g. amodimethicone, trimethyl silyl amodimethicone or dimethicone propyl PG-betaine
- A61K 8/463: {containing sulfuric acid derivatives, e.g. sodium lauryl sulfate}
- A61Q 5/04: Preparations for permanent waving or straightening the hair
- 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 concerns a composition for the permanent shaping of human hair comprising at least one reducing agent at a concentration of above 2% by weight an aminated silicone emulsion comprising at least one nonionic surfactant and free from any cationic surfactant at a concentration in the range of 0.1 to 2.5% by weight calculated to total composition and process for permanent shaping human hair with the said compositions.

## Claims

### Claim 1

A reducing composition for the permanent shaping of human hair, comprising at least one reducing agent at a concentration of above 2% by weight, calculated to the total composition, and an aminated silicone emulsion at a concentration in the range of 0.1 to 2.5% by weight calculated to the total composition, wherein the aminated silicone emulsion comprises amodimethicone emulsified in at least one nonionic surfactant, wherein the aminated silicone emulsion is free of cationic surfactants, wherein the at least one nonionic surfactant is according to the formula
CH3(CH2)12(OCH2CH2)nOH
wherein n is between 4 and 10.

### Claim 2 (depends on 1)

The reducing composition according to claim 1, wherein the at least one reducing agent is are selected from thioglycolic acid, thiolactic acid and its salts, cysteine and its hydrochloride salt and acetylcysteine.

### Claim 3 (depends on 1)

The reducing composition according to claim 1, wherein it has a Brookfield viscosity of 500 to 10,000 mPa·s at 20° C.

### Claim 4 (depends on 1)

The reducing composition according to claim 1, further comprising at least one surfactant selected from anionic, nonionic and amphoteric ones at a concentration of 0.05 to 10% by weight, calculated to the total composition.

### Claim 5 (depends on 1)

The reducing composition according to claim 1, further comprising at least one organic solvent at a concentration of 0.1 to 10% by weight, calculated to the total composition.

### Claim 6 (depends on 1)

The reducing composition according to claim 1, further comprising at least one ubiquinone of the formula
where n is a number between 1 and 10.

### Claim 7 (depends on 1)

The reducing composition according to claim 1, further comprising at least one cationic polymer.

### Claim 8 (depends on 1)

The reducing composition according to claim 1, wherein it has a pH in the range of 6.5 to 10.5.

### Claim 9 (depends on 1)

The reducing composition according to claim 1, wherein the at least one reducing agent is ammonium thioglycolate.

### Claim 10 (depends on 1)

The reducing composition according to claim 1, wherein, for the at least one nonionic surfactant, n is 5 or 10.