Use of halogenated 4,5-methylenedioxyphenol in the dyeing of keratinous fibres
US4692166A · kind A · utility
10Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1986 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | Mar 20, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/4973
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Use for dyeing keratinous fibres, and especially human hair, on a compound corresponding to the formula: ##STR1## in which X denotes a bromine or chlorine atom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.