Composition comprising 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-A]pyrazol-1-one, 4,5-diamino-1-(β-hydroxyethyl)pyrazole and 2-chloro-6-methyl-3-aminophenol, kits containing said composition, and process for dyeing therewith
US7947088B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2009 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Nov 6, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/494
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present disclosure relates to a composition for dyeing keratin fibers, comprising, in a suitable medium, at least one first oxidation base chosen from 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and the addition salts thereof; at least one second oxidation base chosen from 4,5-diamino-1-(β-hydroxyethyl)pyrazole and the addition salts thereof; and at least one coupler chosen from 2-chloro-6-methyl-3-aminophenol and the addition salts thereof. The present disclosure also relates to a process for dyeing keratin fibers using the composition of the present disclosure, the use of this composition for dyeing keratin fibers, and also a method for making the composition of the present disclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.