NEW DOUBLE PARA-PHENYLENEDIAMINE JOINED BY CROSSLINKING CONTAINING SULFUR ATOM OR NITROGEN ATOM, AND USE THEREOF IN DYEING

摘要

PROBLEM TO BE SOLVED: To provide a new family of double para-phenylenediamines joined by a crosslinking containing a sulfur atom or a nitrogen atom, and the use thereof for dyeing keratin fibers.;SOLUTION: The new para-phenylenediamines can be used as an oxidation base for dyeing keratin fibers.;COPYRIGHT: (C)2007,JPO&INPIT