Patent ID: 6042620
Filing Date: 2000-03-28
Classification: A61K,A61P,A61Q

Abstract:
A dye composition for oxidative dyeing of keratin fibers, said dye composition containing a combination of coupler and developer substances, said developer substance comprising at least one p-diaminobenzene derivative compound of the formula (I): ##STR6## wherein X represents oxygen, sulfur, selenium or N--R9; R1, R2, R3 and R4 each, independently of each other, represents hydrogen, a C.sub.1 - to C.sub.6 -alkyl group, a C.sub.1 - to C.sub.4 -hydroxyalkyl group, a C.sub.2 - to C.sub.4 -dihydroxyalkyl group or a C.sub.1 - to C.sub.4 -alkoxy-(C.sub.1 - to C.sub.2)-alkyl group or R1 and R2 or R3 and R4 represent a four-membered to eight-membered aliphatic ring, with the proviso that at least 2 of the R1 to R4 groups represent hydrogen;R5 represents hydrogen, a halogen atom, a C.sub.1 - to C.sub.4 -alkyl group, a C.sub.1 - to C.sub.4 -hydroxyalkyl group or a C.sub.1 - to C.sub.4 - alkoxy group;is R6 and R8 each, independently of each other, represents hydrogen, a hydroxy group, a halogen atom, a cyano group, a C.sub.1 - to C.sub.4 -alkoxy group, a C.sub.1 - to C.sub.6 -alkyl group, a C.sub.1 - to C.sub.4 -alkylthioether group, a mercapto group, a nitro group, an amino group, an alkylamino group, a dialkylamino group, a --C(O)H group, a --C(O)CH.sub.3 group, a --C(O)CF.sub.3 group, a --Si(CH.sub.3).sub.3 group, a C.sub.1 - to C.sub.4 -hydroxyalkyl group, a C.sub.3 - to C.sub.4 -dihydroxy-alkyl group, a --CH.dbd.CHR10 group, a --(CH.sub.2).sub.p --CO.sub.2 R11 group or a --(CH.sub.2).sub.p R12 group with p=1, 2, 3 or 4, a --C(R13).dbd.NR14 group or a --C(R16)H--NR17R18 group;R7 represents hydrogen, a halogen atom, a C.sub.1 - to C.sub.6 -alkyl group or a --C(O)H group;R9 represents hydrogen, a C.sub.1 - to C.sub.6 -alkyl group, a C.sub.1 - to C.sub.4 -hydroxyalkyl group, a phenyl group or an acetyl group;R10 represents hydrogen, a hydroxy group, a nitro group, an amino group, a --CO.sub.2 R11 or a --C(O)CH.sub.3 group;R11, R13 and R16 each, independently of each other, represents hydrogen or a C.sub.1 - to C.sub.4 -alkyl group;R12 represents an amino group or a nitrile group; R14, R17 and R18 each, independently of each other, represents hydrogen, a hydroxy group, a C.sub.1 - to C.sub.4 -alkyl group, a C.sub.1 - to C.sub.4 -hydroxyalkyl group, a C.sub.3 - to C.sub.4 -dihydroxyalkyl group or a group of formula (II): ##STR7## and R15 represents hydrogen, an amino group or a hydroxy group; or a physiologically compatible salt thereof.