| 摘要 |
PROBLEM TO BE SOLVED: To provide a new family of double para-phenylenediamines linked by a branched aliphatic chain, and a new oxidation base capable of dyeing keratin fibers with a variety of low-selective, powerful and beautiful color tones and in a variety of colors resistant to various attacking factors to which the fibers might be subjected, for example, light, sweat, shampoo or the like. SOLUTION: The new double para-phenylenediamines exemplified by, for example, 2,2-dimethyl-N, N'-bis(4-aminophenyl)propane-1,3-diamine tetrahydrochloride, can be used as an oxidation base for dyeing keratin fibers. COPYRIGHT: (C)2007,JPO&INPIT
|
