Compositions and processes for dyeing keratin fibres with 6-hydroxyindoline and oxidation bases at acid pH's
US5620484A · kind A · utility
6Cited by
8References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1996 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Feb 27, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A ready-to-use composition for the oxidation dyeing of keratin fibers, in particular human keratin fibers such as the hair, comprising, in an acidic medium (pH<7), at least one oxidation base in combination with at least one coupler selected from 6-hydroxyindoline and acid addition salts thereof and an oxidizing agent, as well as to the dyeing process using this composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.