Oxidative hair coloring composition and process for dyeing human keratinous fibers
US5540738A · kind A · utility
10Cited by
4References
14Claims
0Family size
Inventors
Key dates
| Filing date | Mar 13, 1995 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Mar 13, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A single-stage process for dyeing keratinous fibers in intense colors comprising simultaneously applying to said keratinous fibers a composition comprising iodide ions, an oxidant and an effective concentration of an oxidation dye to produce said intense colors when the pH of said composition is alkaline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.