Secondary para-phenylenediamine compounds comprising N-alkylfluorine, dye compositions comprising them and processes of dyeing therewith
US7311737B2 · kind B2 · utility
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25Claims
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Key dates
| Filing date | Feb 28, 2005 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Sep 19, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/411
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present disclosure relates to novel secondary para-phenylenediamine compounds comprising N-alkylfluorine, to a process for preparing them, to a composition for dyeing keratin fibers, for example human keratin fibers such as the hair, comprising, in a medium that is suitable for dyeing, at least one secondary para-phenylenediamine compound comprising N-alkylfluorine as disclosed, to a process for dyeing keratin fibers with the disclosed compositions, and also to a dyeing “kit” comprising the dyeing compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.