Cationic diaminopyrazoles, a process for producing them and...

Details Cationic diaminopyrazoles, a process for producing them and... Cationic diaminopyrazoles, a process for producing them and...

2004-09-02

2008-12-09

Elhilo, Eisa B (Department: 1796)

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

Hair dyeing

C008S406000, C008S409000, C008S410000, C008S421000, C008S423000, C008S568000

Reexamination Certificate

active

07462204

ABSTRACT:
Novel cationic 4,5-diaminopyrazole derivatives of general formula (I)the colorants for keratin fibers containing these compounds and a process for producing the compounds of formula (I).

REFERENCES:
patent: 6660046 (2003-12-01), Terranova et al.
patent: 97/42173 (1997-11-01), None
patent: 00/43367 (2000-07-01), None
patent: WO 00/43367 (2000-07-01), None
patent: 02/46165 (2002-06-01), None
STIC Search Report dated Dec. 4, 2007.

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