Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Reexamination Certificate
2007-05-22
2007-05-22
Elhilo, Eisa (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
C008S406000, C008S408000, C008S437000, C008S565000, C008S566000, C008S567000, C008S568000, C008S570000, C008S571000, C008S572000, C008S573000, C008S574000, C008S654000, C008S655000, C546S184000, C548S318100, C548S400000
Reexamination Certificate
active
11033998
ABSTRACT:
The present invention relates to cationic direct dyes of formula (I) below:in which W1represents —NR8— or —O—; X1represents N; CR9; R1and R2, which may be identical or different, represent a hydrocarbon chain; R3and R4, which may be identical or different, represent a hydrogen atom, a halogen atom, a nitro group, a cyano group or a hydrocarbon chain; R5, R6, R7, R8and R9, which may be identical or different, represent a hydrogen atom or a hydrocarbon chain; L represents a specific bridging group and X represents a cosmetically acceptable organic or mineral anion.It likewise relates to a dye composition comprising, in a medium suitable for dyeing human keratin fibers, such a dye, a process using it, and also a multicompartment device.
REFERENCES:
patent: 5708151 (1998-01-01), Mockli
patent: 5919273 (1999-07-01), Rondeau et al.
patent: 0 714 954 (1996-06-01), None
patent: 0 850 636 (1998-07-01), None
patent: WO 02/100834 (2002-12-01), None
STIC Search Report dated, no date.
Elhilo Eisa
Finnegan Henderson Farabow Garrett & Dunner LLP
L'Oreal SA
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