Composition for the oxidation dyeing of keratinous fibres comprising a 5-substituted 3,4-diaminopyrazole and a halogenated meta-aminophenol
US6090162A · kind A · utility
12Cited by
8References
23Claims
0Family size
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Key dates
| Filing date | Nov 6, 1998 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | Nov 6, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A composition for the oxidation dyeing of keratinous fibers, in particular of human keratinous fibers such as hair, with at least one 5-substituted 3,4-diaminopyrazole as an oxidation base, in combination with at least one meta-aminophenol halogenated at the ortho position of the phenol as a coupler, as well as a method of dyeing using this composition with an oxidizing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.