Oxidation hair dyes containing 5-halo-2,3-pyridine-diols as coupler components
US4487607A · kind A · utility
10Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1982 |
| Grant date | Dec 11, 1984 |
| Priority date | — |
| Expiry date | Apr 23, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/4926
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is directed to oxidation hair dyes of the developer-coupler type where the coupler component is a 5-halo-2,3-pyridine-diol and the developer component is selected from conventional developers used in hair dyeing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.