Patent ID: 6554871
Filing Date: 2003-04-29
Classification: C07D

Abstract:
An oxidation dye precursor-containing composition for oxidative dyeing of hair, said composition containing a combination ofat least one 4,5-diaminopyrazole compound selected from the group consisting of 4,5-diamino-1-methyl-1H-pyrazole, 4,5-diamino-1-ethyl-1H-pyrazole, 4,5-diamino-1-isopropyl-1H-pyrazole, 4,5-diamino-1-(2â€²-hydroxyethyl)-1H-pyrazole, 4,5-diamino-1-benzyl-1H-pyrazole and 4,5-diamino-1-(4â€²-methylbenzyl)-1H-pyrazole; at least one 5-amino-2-methylphenol compound selected from the group consisting of 5-amino-2-methylphenol, 5-[(2â€²-hydroxyethyl)amino]-2-methylphenol and 5-methylamino-2-methylphenol; and at least one m-phenylenediamine compound selected from the group consisting of m-phenylenediamine, 2,4-diamino-1-(2â€²-hydroxyethoxy)benzene, 2,4-diamino-1-(2â€²,3â€²-dihydroxypropoxy)benzene, 1,3-bis-(2â€²,4â€²-diaminophenoxy)propane, 2-amino-4-[(2â€²-hydroxyethyl)amino]anisole and 1,5-bis-(2â€²-hydroxyethoxy)-2,4-diaminobenzene.