# US 11,077,040 B2 · Emulsions for enhanced reductive decoloration of keratin fibers

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- Number: US 11,077,040 B2
- Document ID: US11077040B2
- Status: Granted
- Kind: B2
- Application number: 15/570,845
- Filed: 2016-04-26
- Published: 2018-05-31
- Granted: 2021-08-03
- Earliest claimed: 2015-06-12
- Assignees: Henkel AG & Co. KGaA
- Applicants: Henkel AG & Co. KGaA
- Inventors: Juergen Schoepgens; Burkhard Mueller
- Web page: https://patentgrep.com/patent/US11077040B2

## CPC

- A61K 8/46: containing sulfur (A61K8/44 takes precedence)
- A61K 8/345: {containing more than one hydroxy group}
- A61Q 5/08: Preparations for bleaching the hair
- A61Q 5/10: Preparations for permanently dyeing the hair
- A61K 2800/4324: in preparations for permanently dyeing the hair
- A61K 2800/884: Sequential application
- 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 disclosure relates to cosmetic agents for the reductive decoloration of colored keratinous fibers, more particularly human hair, containing a sulphinic acid derivative and at least one alcohol with from about 10 to about 30 carbon atoms. This combination is able to reduce the unpleasant odor during the decoloration process. The present disclosure also relates to a corresponding kit-of-parts, the use of cosmetic agents and the kit-of-parts, as well as to an application method using the cosmetic agents and the packaging unit.

## Claims

### Claim 1

A cosmetic agent for the reductive decoloration of dyed hair, comprising:
a preparation (1) and a preparation (2), wherein the preparation (1) consists of xanthan gum, propylene glycol, cocamidopropyl betaine, a compound of formula (I) wherein the compound of formula (I) is N(CH2SO2Na)3, a compound of formula (II) wherein the compound of formula (II) is N(CH2SO3Na)3, and water; and
wherein the preparation (2) consists of sulfuric acid, oxalic acid, cetearyl alcohol, PEG-40 Castor Oil, sodium cetearyl sulfate, and water.

### Claim 2 (depends on 1)

A method for reductive decoloration of dyed hair, comprising:
(a) applying the cosmetic agent of claim 1 to the dyed hair.