Compositions for oxidation dyeing of at least one keratinous fibre and dying processes using these compositions
US6730133B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2000 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Sep 25, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/88
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Compositions, such as ready-to-use compositions for oxidation dyeing of keratinous fibers, and in particular human keratinous fibers such as the hair, comprising, in a medium which is suitable for dyeing, at least one oxidation dye, and at least one enzymatic system, the enzymatic system comprising (i) at least one enzyme immobilized in at least one sol-gel matrix and optionally (ii) at least one suitable donor, wherein said at least one enzyme is chosen from 2-electron oxidoreductases, 4-electron oxidoreductases and peroxidases, with the proviso that when said at least one enzyme is chosen from 2-electron oxidoreductases, said at least one enzymatic system comprises at least one suitable donor, and with the proviso that when said at least one enzyme is chosen from peroxidases, said at least one enzymatic system further comprises at least one source of hydrogen peroxide chosen from hydrogen peroxide and at least one enzymatic system which generates hydrogen peroxide in situ, as well as to processes for dyeing keratinous fibers using these compositions and multicompartment device or dyeing kits comprising these compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.