1,4-di(mono- or poly) hydroxyalkylamino-9,10-anthraquinones for dyeing human keratinous fibres, cosmetic composition containing them in combination with azo and nitrobenzene dyes, and hair-dyeing process using them
US5226924A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1991 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Oct 11, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B1/285
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to the use of 1,4-di(mono- or poly)hydroxyalkylamino-9,10-anthraquinones: ##STR1## where R represents a C.sub.2 to C.sub.6 monohydroxyalkyl radical or a C.sub.3 to C.sub.6 polyhydroxyalkyl radical for dyeing human keratinous fibers, to the dyeing cosmetic compositions containing such anthraquinones, to the dyeing compositions for keratinous fibers containing such anthraquinones in combination with nitro dyes of the benzene type and azo dyes for direct dyeing, and/or with oxidation dyes for oxidation dyeing as well as to the processes for dyeing keratinous fibers by direct dyeing or by oxidation dyeing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.