Composition for dyeing keratinous fibers comprising at least one azodiazine direct dye containing an aniline group and dyeing method using it
US7270684B2 · kind B2 · utility
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3References
31Claims
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Key dates
| Filing date | Jul 30, 2004 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Aug 29, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/065
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a composition for dyeing keratinous fibers, containing at least one azodiazine direct dye corresponding to the following formula (I):The present invention also relates to a method for dyeing keratinous fibers using these direct dyes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.