Patents for C09B 44 - Azo dyes containing onium groups (862)
01/2003
01/02/2003US20030003396 Reflection, protective or covering layers which can be written on or read by blue, red or infrared light
12/2002
12/26/2002US20020197561 Information layer comprises a light-absorbent compound that is a dye which cyclizes thermally
12/26/2002US20020197439 Optical data storage medium containing a triazacyanine dye as the light-absorbing compound in the information layer
12/19/2002WO2002100369A2 Dyeing composition for keratinous fibres comprising a particular dicationic diazo dye
12/19/2002WO2002100368A1 Dyeing composition for keratinous fibres comprising a particular dicationic diazo dye
12/19/2002WO2002080161A3 Optical data carrier that contains a merocyanine dye as the light-absorbing compound in the information layer
12/19/2002DE10115227A1 Optischer Datenträger enthaltend in der Informationsschicht eine lichtabsorbierende Verbindung mit mehreren chromophoren Zentren Optical data storage medium in the information layer containing a light absorbing compound having a plurality of chromophoric centers
12/11/2002EP1056808B1 Monoazo dyestuffs, a composition and an ink for ink jet printing comprising them
12/05/2002WO2002096994A1 Basic mono- and bisazo compounds
12/04/2002EP1261666A1 A method of colouring hair using cationic dyes
12/03/2002US6488752 Storage stability, waterproof, colorfastness, photostability
11/2002
11/21/2002US20020172793 Optical data store comprising an axially substituted cobalt phthalocyanine in the light-writeable information layer
11/07/2002WO2002089128A1 An optical data storage medium containing a diaza hemicyanine dye as the light-absorbing compound in the information layer
10/2002
10/31/2002WO2002086879A1 Optical data support comprising a hemicyanin dye in the information layer as light-absorbing compound
10/31/2002WO2002086878A2 Optical data carrier whose information layer contains a light-absorbing compound having a number of chromophoric centers
10/24/2002WO2002084656A1 Optical data carrier that contains a triazacyanine dye as the light-absorbing compound in the information layer g
10/24/2002US20020155381 Multilayer; radiation transparent substrate, reflection layers, protective coatings
10/17/2002WO2002080869A2 Novel dyeing composition for dyeing keratinous fibres comprising a particular dicationic monoazo dye
10/10/2002WO2002080164A1 Optical recording medium
10/10/2002WO2002080163A1 Optical data carrier containing a cyclizable compound in the information layer
10/10/2002WO2002080162A1 Optical data memories containing an axially substituted co-phthalocyanine in the information layer that can be written with light
10/10/2002WO2002080161A2 Optical data carrier that contains a merocyanine dye as the light-absorbing compound in the information layer
10/10/2002WO2002080160A1 Optical data carrier that contains a cationic aminoheterocyclic dye as the light-absorbing compound in the information layer
10/10/2002WO2002080159A1 Optical data carrier that contains a cyanine dye as the light-absorbing compound in the information layer
10/10/2002WO2002080152A2 Optical data carrier that contains a heterocyclic azo dye as the light-absorbing compound in the information layer
10/10/2002WO2002080150A2 Optical data medium containing, in the information layer, a dye as a lightabsorbing compound and having a protective covering layer of predetermined thickness
10/10/2002WO2002078660A1 Dyeing composition for dyeing keratinous fibres comprising a cationic azo-dye
10/10/2002WO2002078659A1 Dyeing composition for dyeing keratinous fibres comprising a cationic azo-dye
10/10/2002WO2002078658A1 Dyeing composition for dyeing keratinous fibres comprising a cationic azo-dye
10/10/2002WO2002078657A1 Dyeing composition for dyeing keratinous fibres comprising a cationic azo-dye
10/10/2002WO2002078596A2 Novel dyeing composition for dyeing keratinous fibres comprising a particular dicationic diazo dye
10/03/2002WO2002077984A1 Optical data carrier containing a xanthene dye in the information layer thereof as a light-absorbing compound
09/2002
09/12/2002US20020127366 Singly recordable compact disc (CD-R)
09/12/2002US20020124790 Organic ammonium molecule contains a functional chromophore; semiconductive, ferromagnetic properties
07/2002
07/03/2002EP1219683A2 Cationic imidazolazo dyestuffs
06/2002
06/20/2002US20020076648 Optical data medium containing, in the information layer, a phthalocyanine dye as a light-absorbing compound
05/2002
05/29/2002EP1209208A2 Ink jet printing method
04/2002
04/25/2002US20020046432 Dye composition for keratin fibres, with a cationic direct dye and a substantive polymer
04/18/2002WO2002031056A1 Cationic imidazole azo dyes
04/18/2002WO2002030374A1 Method of dyeing keratin-containing fibres
03/2002
03/28/2002WO2002025648A1 Optical data carrier containing a phthalocyanine colouring agent as a light absorbing compound in the information layer
03/28/2002WO2002025205A1 Optical data storage device containing a co-phthalocyanin complex in the optically writable information layer
03/28/2002DE10045430A1 Bisazofarbstoffe auf der Basis von Hydroxynaphthalincarbonsäure Bisazo dyes on the basis of hydroxynaphthalenecarboxylic
03/21/2002WO2002022742A1 Bisazo dyestuffs based on hydroxynaphthalene carboxylic acid
02/2002
02/27/2002EP1182240A2 Ink jet ink composition
02/27/2002EP1182239A2 Ink Jet Ink composition
02/27/2002EP1182050A2 Ink jet printing method
02/12/2002US6346609 Disazo dyes or polyazo dyes
01/2002
01/31/2002US20020010968 Composition for dyeing keratin fibers with a cationic direct dye and a thickening
11/2001
11/22/2001WO2001087896A1 Method of forming thin film of organic ammonium/inorganic lamellar perovskite compound
09/2001
09/13/2001WO2001066646A1 A method of colouring hair using cationic dyes
09/13/2001CA2400337A1 A method of colouring hair using cationic dyes
08/2001
08/22/2001EP1124903A1 Cationic azo-dyes
06/2001
06/20/2001CN1067237C Cationic dyes for keratin-containing fibres
12/2000
12/06/2000EP1056808A1 Monoazo dyestuffs, a composition and an ink for ink jet printing comprising them
11/2000
11/07/2000US6143061 Comprising water, a humectant, and a delocalized cationic azo dye derived from the quatemization of a heterocyclic azoaminothiazole dye
11/02/2000EP1048701A1 Delocalized cationic azo dye for ink jet ink
10/2000
10/31/2000US6140478 Suitable for coloring or printing especially of paper and leather.
10/10/2000US6130319 Methods of making cationic azo dye compounds having flocculating properties using reactive dyes
05/2000
05/18/2000WO2000027929A1 Cationic azo-dyes
05/11/2000DE19851026A1 Kationische Azofarbstoffe Cationic azo dyes
04/2000
04/11/2000US6048969 Cationic sulfonic acid dyes
04/11/2000US6048968 Cationic azo dyes based on aminobenzoic acid
03/2000
03/29/2000CN1248435A Keratin fibre dyeing composition using cation direct dye and thickening polymer
03/29/2000CN1248434A Keratin fibre dyeing composition using cation direct dye and thickening polymer
03/08/2000CN1246331A Hair dye composite for keratin fibre containing cation direction dye and polymer thickening agent
03/08/2000CN1246330A Keratin fibre hair dye composite containing cation direction dye and polymer thickening agent
01/2000
01/26/2000EP0681464B1 Cationic dyes for keratin-containing fibres
01/12/2000EP0970687A1 Composition for dyeing keratinous fibres containing a cationic direct dye and a thickening polymer
01/12/2000EP0970686A1 Composition for dyeing keratinous fibres containing a cationic direct dye and a thickening polymer
01/12/2000EP0970685A1 Composition for dyeing keratinous fibres containing a cationic direct dye and a thickening polymer
01/12/2000EP0970684A1 Composition for dyeing keratinous fibres containing a cationic direct dye and a thickening polymer
01/09/2000CA2277355A1 Keratin fibre dye composition with a cationic direct colorant and a thickening polymer
01/09/2000CA2277353A1 Keratin fibre dye composition with a cationic direct colorant and a thickening polymer
01/09/2000CA2277347A1 Keratin fibre dye composition with a cationic direct colorant and a thickening polymer
01/09/2000CA2277345A1 Keratin fibre dye composition with a cationic direct coloring and a thickening polymer
12/1999
12/07/1999US5998590 Magenta dyes having flocculating properties
11/1999
11/11/1999DE19820400A1 Kationische Azofarbstoffe auf der Bais von Aminobenzoesäure Cationic azo dyes on the bais of aminobenzoic acid
11/10/1999EP0955342A1 Cationic azo dyes derived from aminobenzoic acid
11/03/1999EP0953334A2 Composition for dying keratinous fibres with a direct cationic dye and a substantive polymer
11/03/1999CN1233466A Cationic direct dye and direct-dyeing polymer composition used for dyeing keratin-fiber
10/1999
10/19/1999US5969112 Colorfast waterfast monoazo dyes for printing inks, for prevention of color bleeding between two inks when placed side by side
10/14/1999DE19815945A1 Kationische Sulfonsäurefarbstoffe Cationic Sulfonsäurefarbstoffe
10/13/1999EP0949300A1 Cationic azo dyestuffs containing sulfonic-acid groups
09/1999
09/21/1999US5955615 Couplers
09/14/1999US5952475 Cationic thiadiazolediphenylamine dyes for use in inkjet printing and in light-writable data storage media and in dye transfer films
09/02/1999WO1999043754A1 Monoazo dyestuffs, a composition and an ink for ink jet printing comprising them
08/1999
08/12/1999DE19805544A1 New mono- and bisazo dyes useful in optical recording media and nonlinear optics and as textile dye
07/1999
07/27/1999US5929216 Benzothiazolium containing azo dyes useful for dyeing polyacrylonitrile
07/06/1999US5919914 Clathrate of bis 6-hydroxy-4-methyl-5-(3-methyl-imidazolium-1-yl) -3-(phen-4-ylazo) pyridin-2-one! ethylene and an aromatic compound
03/1999
03/16/1999US5883232 Diazahemicyanine, triazole, azo and hydrophobic dyes; colorfastness, color reproducibility
03/09/1999US5879413 Cationic diazo dyes for the dyeing of hair
02/1999
02/09/1999US5869731 Cationic dyes having specified computed electrostatic shielding energy
12/1998
12/16/1998EP0884367A2 Cationic diphenylamine dyestuffs and their anhydrobases
11/1998
11/10/1998US5834600 Diazahemicyanine dyes, magenta, improved photostability and reproducibility
10/1998
10/20/1998US5824118 Dyeing automobile seat covers containing acrylic or cationic-dyeable polyester
09/1998
09/24/1998DE19809994A1 Crystalline clathrate compounds useful for purifying dis:azo dye
09/15/1998US5808015 Red fiber reactive, acid dyes for cellulose fibers, cotton, wool, silk, polyamides, polyesters, polyolefins and polyacrylonitrile; colorfastness; brightness; triazine dyes
05/1998
05/12/1998US5750661 Cationic dye for coloring paper, synthetic polymer textiles or natural fibers; chemical resistance, color/washfastness, solubility
03/1998
03/10/1998US5725607 Computed electrostatic shielding energy
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