Cationic substituted hydrazone dyes

Details Cationic substituted hydrazone dyes Cationic substituted hydrazone dyes

2006-08-15

2006-08-15

Powers, Fiona T. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C008S405000, C008S406000, C008S407000, C008S408000, C008S426000

Reexamination Certificate

active

07091358

ABSTRACT:
The present invention relates to novel cationic dyes of formula (1), (2) or (3)whereinR1and R2are each independently of the other a C1–C8alkyl radical or an unsubstituted or substituted benzyl radical,R3is hydrogen, C1–C8alkyl, C1–C8alkoxy, cyanide or halide, andR4is a C1–C8alkyl radical or an unsubstituted or substituted aryl radical, andX−is an anion. Further, the present invention relates to compositions thereof, especially comprising other dyes, to processes for the preparation thereof and to the use thereof in the dyeing of organic material, such as keratin fibers, especially hair; or wool, leather, silk, cellulose or polyamides, and preferably human hair.

REFERENCES:
patent: 3158608 (1964-11-01), Raue
patent: 4026885 (1977-05-01), Frey et al.
patent: 4424349 (1984-01-01), Giesecke
patent: 5919273 (1999-07-01), Rondeau et al.
patent: 6432146 (2002-08-01), Rondeau
patent: 2005/0000034 (2005-01-01), Eliu et al.
patent: 0850636 (1998-07-01), None
patent: 1025834 (2000-08-01), None
patent: 1153599 (2001-11-01), None
patent: 1166752 (2002-01-01), None
patent: 95/01772 (1995-01-01), None
patent: 95/15144 (1995-06-01), None
patent: 99/20234 (1999-04-01), None
patent: 00/10519 (2000-03-01), None
patent: 00/12057 (2000-03-01), None

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