申请人:L'Oreal
公开号:US05032137A1
公开(公告)日:1991-07-16
The invention relates to p-phenylenediamines of formula: ##STR1## in which R.sub.1 denotes an alkyl, hydroxyalkyl or polyhydroxyalkyl radical and R.sub.2 denotes a hydrogen atom or an alkyl radical, as well as the corresponding salts with acids, and to the compositions and the process for dyeing keratinous fibres, and especially hair, employing them.
本发明涉及以下式子的p-苯二胺:##STR1## 其中R.sub.1代表烷基,羟基烷基或多羟基烷基基团,R.sub.2代表氢原子或烷基基团,以及与酸对应的相应盐,以及使用它们染色角质蛋白纤维,特别是头发的组合物和过程。