Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Reexamination Certificate
2007-03-06
2007-03-06
Elhilo, Eisa (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
C008S406000, C008S407000, C008S410000, C008S411000, C008S423000, C008S426000, C008S437000, C008S562000, C008S565000, C008S566000, C008S568000, C008S570000, C008S571000, C008S572000, C008S573000, C008S574000, C008S575000, C008S576000, C008S579000, C549S200000, C546S146000, C552S100000, C540S122000
Reexamination Certificate
active
10742800
ABSTRACT:
Disclosed herein is a dye composition for dyeing human keratin fibers, such as the hair, comprising a direct polycationic dye of formula (I) below:in-line-formulae description="In-line Formulae" end="lead"?Col-Z-Col (I)in-line-formulae description="In-line Formulae" end="tail"?in whichCol, which may be identical or different, is a monocationic dye chosen from azo dyes, methine dyes, azomethine dyes, and phenothiazine dyes; andZ is chosen from linear and branched, saturated and unsaturated C1–C20 hydrocarbon-based groups comprising at least one nitrogen atom and bearing at least two cationic charges,and also to processes for dyeing human keratin fibers using said composition, to the use of the dyes of formula (I) as direct dyes, and to multi-compartment devices.
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"L'Oreal"
Elhilo Eisa
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
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