M-phenylenediamine derivatives as coupler components for the coloring of keratinic fibers
US7135047B2 · kind B2 · utility
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15References
16Claims
0Family size
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Key dates
| Filing date | Jun 22, 2005 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Jun 22, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D295/13
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Agents for coloring keratinic fibers are provided which contain specific m-phenylenediamine derivatives such as N-2-(morpholine-4-yl)ethyl-m-phenylenediamine, N-3-(morpholine-4-yl)propyl-m-phenylenediamine, and N-3-(imidazole-1-yl)-propyl-m-phenylenediamine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.