NEW DOUBLE PARA-PHENYLENEDIAMINE LINKED BY AROMATIC GROUP, AND USE THEREOF IN DYEING

摘要

PROBLEM TO BE SOLVED: To provide a new family of double para-phenylenediamines joined by a crosslinking comprising an aromatic group, and a new oxidation base capable of dyeing keratin fibers. SOLUTION: The new double para-phenylenediamines typified by, for example, N-(3-ä[(4-aminophenyl)amino]methyl}benzyl)benzene-1,4-diamine tetrahydrochloride, can be used as an oxidation base for dyeing keratin fibers. COPYRIGHT: (C)2007,JPO&INPIT