Coloration composition, process for obtaining the same and its use for the coloration of keratin fibres
US6723136B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 2001 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Jul 30, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A composition for coloring keratin fibers comprises, a physiologically acceptable medium and an efficacious quantity of at least one coloring material precursor selected from the compounds containing at least one aromatic ring having at least two hydroxyl groups borne by two adjacent carbon atoms of the aromatic ring, an efficacious quantity of at least one oxidation base of the para or ortho type selected from the aromatic amines, and an efficacious quantity of a catalytic system comprising a first constituent selected from the group consisting of salts and oxides of Mn(II) and/or Zn(II) and their mixtures, and a second constituent selected from the group consisting of alkali hydrogen carbonates, alkaline earth hydrogen carbonates and their mixtures. Keratin fibers may be colored by the application of this composition thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.