Quarternized monoalkylenediamine nitrobenzene compounds and their use as dyes for keratinaceous fibers
US5256823A · kind A · utility
10Cited by
4References
10Claims
0Family size
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Key dates
| Filing date | Jun 10, 1992 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Jun 10, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Quaternized monoalkylenediamine nitrobenzene compounds of general formula ##STR1## wherein one of Z or Y is the quaternized group ##STR2## the other of Y or Z being H, alkyl, hydroxyalkyl or hydroxyalkoxy when it is not said quaternized group, and the use of said compounds in the dyeing of keratinaceous fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.