C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 213/74 (2006.01) A61K 7/13 (2000.01)
Patent
CA 2494861
The invention relates to a dyeing composition which is used to dye keratinous fibres and which contains at least one oxidation base and at least one 6-alkoxy-2,3-diaminopyridine-type coupler in which the position 2 amino radical is a monosubstituted amino radical. The invention also relates to the use of the inventive composition for the dyeing of keratinous fibres and to the dyeing method which employs said composition. The invention further relates to novel 6-alkoxy-2,3-diaminopyridine compounds which are used as couplers.
L'invention a pour objet une composition tinctoriale utile pour la teinture des fibres kératiniques contenant au moins une base d'oxydation et au moins un coupleur du type 6-alcoxy-2,3-diaminopyridine dont le radical amino en position 2 est un radical amino monosubstitué, l'utilisation de cette composition pour la teinture des fibres kératiniques ainsi que le procédé de teinture mettant en oeuvre cette composition. L'invention a aussi pour objet de nouveaux composés 6-alcoxy-2,3-diaminopyridines utiles comme coupleurs.
Fadli Aziz
Vidal Laurent
L'oreal
Robic
LandOfFree
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