Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Reexamination Certificate
2007-12-11
2007-12-11
Powers, Fiona T (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
C534S608000, C008S405000, C008S406000, C008S407000, C008S426000, C008S657000
Reexamination Certificate
active
10565137
ABSTRACT:
The present invention relates to novel the cationic dyes of formula (1) wherein R1is an unsubstituted or substituted C1-C14alkyl or an aryl radical; X−is an anion; R3is an unsubstituted or substituted C1-C14alkyl, aryl radical, C1-C6alkoxy, cyanid, nitro or halide; n is 1 or 2; and if n is 1, then R2is hydrogen, unsubstituted or substituted C1-C14alkyl; or if n is 2, then R2is an unsubstituted or substituted C1-C14alkylen. 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, wool, leather, silk, paper, cellulose or polyamides, and preferably human hair
REFERENCES:
patent: 3102879 (1963-09-01), Baumann et al.
patent: 3173907 (1965-03-01), Klingsberg et al.
patent: 3216995 (1965-11-01), Baumann et al.
patent: 4067973 (1978-01-01), Budde et al.
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patent: 5708151 (1998-01-01), Möckli
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English language abstract for EP 1 166 752 printed from esp@cenet.com on Jul. 13, 2006.
Von H. Baumann et al., Chimia vol. 15, pp. 163-168 (Jan. 1961).
Eliu Victor Paul
Fröhling Beate
Ciba Specialty Chemicals Corporation
Powers Fiona T
Wood Mervin G.
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