Patent EP-1757264-A2 (EP)
Inventor: DAUBRESSE NICOLAS
IPC: A61Q5/10
Filed: 2006-08-22
Abstract: Use of a cationic azo compound with julolidine moiety and their additive salts or solvates, as a direct dye for keratinous fibers, particularly human keratinous fibers, e.g. hair, in a medium. Use of a cationic azo compound with julolidine moiety of formula (I) and their additive salts or solvates, in a medium, as a direct dye for keratinous fibers, particularly human keratinous fibers e.g. hair. A : cationic aromatic heterocyclic ring of formula (a), (b) or (c); R 11-6C hydrocarbon (which can form 6-7 membered carbon cycle and is optionally condensed with the aromatic ring or substituted cyclic ring and interrupted with O, N or S or carbonyl group)(where R 1does not comprise a nitro, nitroso, peroxide or diazo connection and directly attached to N or (non)quaternized heteroaromatic cyclic A via a carbon atom); R 21-6C hydrocarbon (which can form 3-6 membered (non)aromatic ring and is optionally substituted, interrupted with heteroatoms or groupings carrying a heteroatom, preferably O or N), OH, 1-4C alkyloxy, 2-4C(poly)hydroxyalkyloxy, R11-O-CO-, R12CO-O-, NH 2(which is substituted with 1-4C alkyl (optionally having OH and the two alkyl with N can form a 5-6 membered heterocyclic ring (optionally having another heteroatom N, O or S))), R13CO-NR13- and/or R13CO-NH-, (R14) 2N-CO-, (R15) 2N-CO-NR16-, (R17) 2N-SO 2-, R18SO 2-NR19-, (R20) 2N-C(=NH 2+>)-NR21-, NO 2, CN or halo, preferably Cl or F; or 2R 2(non)aromatic ring; R11-R13 : 1-4C; R14-R21 : H or 1-4C; m : 0-4; e : 0-2; p : 0-1; D : CR 2or N; Q : NR 1, S or O; X, Y 1or Z : optionally substituting groups of the tricyclic core of (I); x : 0-2; y : 0-6; and z : 0-6. Provided that: when the connection is resulting from (IIa), (IIb) or (IIc), then A is connected to the azo group; or when (IIa), (IIb) or (IIc) and two R 2groups an aromatic cycle, then A is connected to the azo group by the aromatic cycle, where the electroneutrality is achieved by An ->; when the alkyl or the part of the alkyl is substituted then the substituent is OH, 1-4C alkyloxy, 2-4C(poly)hydroxyalkyloxy, R11-O-CO-, R12CO-O-, NH 2(which is substituted with 1-4C alkyl (optionally having OH and the two alkyl with N can form a 5-6 membered heterocyclic ring (optionally having another heteroatom other than N))), R13CO-NR13- and/or R13CO-NH-, (R14) 2N-CO-, (R15) 2N-CO-NR16-, (R17) 2N-SO 2-, R18SO 2-NR19-, (R20) 2N-C(=NH 2+>)-NR21-, NO 2, CN or halo, preferably Cl or F; and when a part of cyclic or heterocyclic ring is substituted then the substituent is OH, 1-4C alkyloxy, 2-4C(poly)hydroxyalkyloxy, R11-O-CO-, R12CO-O-, NH 2(which is substituted with 1-4C alkyl (optionally having OH and the two alkyl with N can form a 5-6 membered heterocyclic ring (optionally having another heteroatom other than N))). Independent claims are included for: (1) a tinctorial composition for dyeing keratinous fibers, particularly human keratinous fibers e.g. hair comprising (I); (2) a process of dyeing keratinous fibers comprising applying the composition to the fibers, leaving the dyed fibers for 3 minutes to 1 hour, preferably 15 minutes to 45 minutes and rinsing the fibers; (3) a device with several compartments or a kit comprising first compartment containing the composition and a second compartment containing a composition having an oxidizing agent; and (4) a cationic azo compound (I). [Image] [Image].