Composition, useful to color the keratinous fibers, particularly human hair, lashes and eyebrows, comprises a dicarbonitrile compound and an amine/hydroxyl compound

摘要

Composition comprises a nitrile compound (I) and an amine compound (II) or a hydroxyl compound (III), in a medium. Composition comprises a dicarbonitrile compound of formula (I) and an amine compound (II) of formula B1-NR1R2 or a hydroxyl compound (III) of formula B1-OH, in a medium. A : T, preferably pyrazine or pyridine (optionally substituted); T : aromatic ring, or unsaturated, (non)aromatic or (non)condensed heterocyclic ring having N, O, S, P or carbonyl group, (optionally substituted with 5-50C chain, preferably 1-6C alkyl, halo, 1-6C alkoxy, CN, 1-6C acyl, OH, NH2 (optionally substituted by one or two 1-6C alkyl and carry OH or NH2 (optionally substituted by one or two 1-6C alkyls), radicals with N form a 5-6 membered heterocyclic ring), 1-6C hydroxyalkyl, 1-6C alkyl substituted by NH2 (optionally substituted by 1-6C alkyl or OH), 1-6C carboxyalkyl or acylamino); either R1, R2 : H, 1-6C (hydroxy)alkyl or 1-6C aminoalkyl; or NR1R2 : 5-7 membered saturated ring (optionally substituted by N); and B1 : T. An independent claim is included for a process of coloring keratinous fiber comprising: either applying the composition to dry/wet fibers till the required color is developed, rinsing the fibers, optionally washing the fibers with shampoo, followed by rinsing again, and drying or leaving the fibers to dry; or applying a composition having a thiol reducing agent in a medium to the fibers, applying the composition to the fibers optionally in the presence of a heat source till the required color is developed and repeating the other steps of the process as above. [Image].