Cationic oxidation bases, their use for the oxidation dyeing of keratin fibres, dyeing compositions and dyeing methods
申请人:L'Oreal S.A.
公开号:US06783557B1
公开(公告)日:2004-08-31
The invention concerns novel pyrazolo[1,5-a]pyrimidines comprising at least a cationic group Z, Z being selected among quaternized aliphatic chains, aliphatic chains comprising at least a quaternized cycle, and their use as oxidation base for dyeing keratin fibers, the dyeing compositions containing them, and the oxidation dyeing methods using them.