Transition metal complexes as dye forming catalysts in hair coloring compositions
US6695888B2 · kind B2 · utility
3Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2001 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Dec 5, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/88
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A hair coloring composition comprising a first composition which comprises:(a) a dye forming transition metal salt or complex; which is first applied to the hair;and a second composition which comprises the following two compositions which are mixed just prior to application to the hair:(a) a composition comprising a water-soluble peroxygen oxidizing agent; and(b) a composition comprising one or more oxidative hair coloring agents selected from the group consisting of an aromatic diamine, an aminophenol, a polyhydric phenol a catechol and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.