Title:
CATIONIC DIMERIC DYES
Document Type and Number:
WIPO Patent Application WO2004083312
Kind Code:
A3
Abstract:
The present invention relates to novel cationic dye of formula (1) and (1 a) wherein A is an organic radical of formula (2) or (3) wherein R1 and R2 are each independently of the other unsubstituted or substituted C1-C14alkyl or an aryl radical, R3 is hydrogen, unsubstituted or substituted C1-C14alkyl, unsubstituted or substituted C1-C14alkoxy, cyan or halogenid, R4 is hydrogen, unsubstituted or substituted C1-C14alkyl or an aryl radical, and X 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, wool, leather, paper, silk, cellulose or polyamides, and preferably human hair.
Inventors:
ELIU VICTOR PAUL (DE)
FROEHLING BEATE (DE)
FROEHLING BEATE (DE)
Application Number:
PCT/EP2004/050268
Publication Date:
November 17, 2005
Filing Date:
March 08, 2004
Export Citation:
Assignee:
CIBA SC HOLDING AG (CH)
ELIU VICTOR PAUL (DE)
FROEHLING BEATE (DE)
ELIU VICTOR PAUL (DE)
FROEHLING BEATE (DE)
International Classes:
A61K8/49; A61Q5/06; A61Q5/10; C09B44/10; (IPC1-7): A61K7/13; C09B44/10
Domestic Patent References:
| WO1999020234A1 | 1999-04-29 | |||
| WO1999020235A1 | 1999-04-29 |
Foreign References:
| FR2757388A1 | 1998-06-26 | |||
| US6432146B1 | 2002-08-13 | |||
| US5993490A | 1999-11-30 |
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