Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Reexamination Certificate
2006-02-21
2006-02-21
Elhilo, Eisa (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
C008S407000, C008S411000, C008S437000, C008S451000, C008S463000, C008S466000, C008S570000, C008S573000, C008S574000, C548S318100, C548S321500, C548S400000, C546S184000, C546S249000
Reexamination Certificate
active
07001436
ABSTRACT:
The invention concerns a dyeing composition for keratinous fibres, in particular human keratinous fibres and more particularly hair, comprising a dicationic diazo dye of formula (I), as well as the dyeing composition using same. The invention also concerns the novel compounds of formula (I).
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David Hervé
Vidal Laurent
Elhilo Eisa
Finnegan Henderson Farabow Garrett & Dunner LLP
L'Oreal S.A.
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