| Patents for C09B 44 - Azo dyes containing onium groups (862) |
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| 06/08/2006 | US20060117497 Azo dye for hair; thickener is anionic amphiphilic polymer |
| 05/16/2006 | US7045608 Process for the preparation of cationic azo compounds |
| 05/09/2006 | US7041354 Optical data carrier comprising a cyanine dye as light-absorbent compound in the information layer |
| 04/26/2006 | EP1648967A1 Cationic direct dyes |
| 04/19/2006 | EP1647548A1 Dictionic bishydrazones, dyeingcompositions containig at least one of these compounds, process of their preparation and uses thereoff |
| 04/19/2006 | CN1761448A Cationic dimeric dyes |
| 04/19/2006 | CN1760192A Cationic diazo compounds, compositions comprising them, methods for dyeing and kit |
| 04/04/2006 | US7022143 Dyeing composition for dyeing keratinous fibers comprising a cationic azo-dye |
| 03/22/2006 | EP1637566A1 Cationic diazo compounds, compositions comprising them as direct dye, methods for dyeing keratin fibres and kit |
| 03/22/2006 | CN1245938C Novel dyeing composition for dyeing-keratinous fibers comprising particular dicationic diazo dye |
| 03/15/2006 | EP1634926A1 Selected cationic diazo compounds, compositions comprising them as direct dye, methods for dyeing keratin fibres and kit |
| 03/15/2006 | CN1245150C Composition containing specific single cation monoazo dye for dyeing human cutin fiber |
| 03/08/2006 | CN1743382A Cationic diazo compounds, compositions comprising them as direct dye, process for dyeing keratin fibers and device therefor |
| 02/23/2006 | US20060037152 Cationic azo monomers or symmetric dimers, preparation thereof, compositions comprising same and process for dyeing keratin fibers |
| 02/22/2006 | CN1737064A Cationic diazo compound, compositions comprising at least one cationic diazo compound as a direct dye, a process for dyeing keratin fibers and device therefore |
| 02/15/2006 | CN1733757A Cationic diazo compounds, compositions comprising them as direct dye, process for dyeing keratin fibers and device therefor |
| 02/09/2006 | US20060026776 Method of dyeing keratin-containing fibres |
| 02/09/2006 | DE19809994B4 Clathrate von Bis-[6-hydroxy-4-methyl-5-(3-methylimidazolium-1-yl)-3-(phen-4-ylazo)-pyridin-2-on]ethylen Ethylene clathrates of bis [6-hydroxy-4-methyl-5- (3-methylimidazolium-1-yl) -3- (phen-4-ylazo) -pyridin-2-one] |
| 02/08/2006 | EP1622686A2 Cationic dimeric dyes |
| 01/26/2006 | US20060016025 Cationic diazo compounds, compositions comprising them as direct dye, process for dyeing keratin fibers and device therefor |
| 01/25/2006 | EP1619221A1 Selected cationic diazo compounds, compositions comprising them as direct dye, methods for dyeing keratin fibres and kit |
| 01/25/2006 | EP1619220A1 Selected cationic diazo compounds, compositions comprising them as direct dye, methods for dyeing keratin fibres and kit |
| 12/15/2005 | WO2005097051A3 Disulfide dyes, composition comprising them and method of dyeing hair |
| 12/15/2005 | CA2566879A1 Cationic quinoxaline thiazole azo dye-containing colorants |
| 12/08/2005 | WO2005116143A1 Concentrated dye solution |
| 11/17/2005 | WO2005073324A3 Direct triazoic cationic dyestuff, tincting compound containing said dyestuffs and method for colouring keratinic fibres by means of said dyestuffs |
| 11/17/2005 | WO2004083312A3 Cationic dimeric dyes |
| 11/10/2005 | WO2005095522A3 Cationic imidazolazo dyes containing a 2, 5-diaminophenyl moiety |
| 10/27/2005 | US20050235433 Composition for dyeing keratin fibers with a cationic direct dye and a thickening polymer |
| 10/20/2005 | WO2005097051A2 Disulfide dyes, composition comprising them and method of dyeing hair |
| 10/13/2005 | WO2005095522A2 Cationic imidazolazo dyes containing a 2, 5-diaminophenyl moiety |
| 09/27/2005 | US6949630 acridine, anthraquinone, azine, azo, azomethine, dioxazine, methine, oxazine and imidazole hair dyes |
| 09/22/2005 | DE102004010999A1 Kationische Naphthyldiazofarbstoffe sowie diese Farbstoffe enthaltende Mittel zur Färbung von Keratinfasern Cationic naphthyldiazo dyes containing these dyes, and agents for coloring keratin fibers |
| 09/15/2005 | WO2005085362A1 Cationic naphthyldiazo dyes and agents containing said dyes used to colour keratin fibres |
| 09/15/2005 | US20050203286 Environmental protection series of reactive dyestuffs and their use |
| 09/14/2005 | CN1666988A Environmental protection reactive dyeing and use thereof |
| 09/08/2005 | DE19629238B4 Basische Azoverbindungen, deren Herstellung und Verwendung Basic azo compounds, their preparation and use |
| 09/08/2005 | DE102004008606A1 Aufhellendes Färbemittel mit Indolylthiazoliumazofarbstoffen Brightening colorant having Indolylthiazoliumazofarbstoffen |
| 09/07/2005 | CN1217995C Method of colouring hair using cationic dyes |
| 09/01/2005 | WO2005080507A1 Lightening colorant containing indolyl thiazolium azo dyes |
| 08/30/2005 | US6936325 Optical recording medium |
| 08/24/2005 | CN1659640A Optical data carrier comprising a cationic aminoheterocyclic dye as light-absorbent compound in the information layer |
| 08/23/2005 | US6933371 Colors materials comprising azo dyes having colorfastness, used for dyeing natural or synthetic fibers |
| 08/17/2005 | EP1563828A1 Colouring composition comprising at least one direct colouring agent from the azo-pyridinio-pyridone family and at least one additional synthesized colouring agent, dyeing process of keratinuous fibers |
| 08/11/2005 | WO2005073324A2 Direct triazoic cationic dyestuff, tincting compound containing said dyestuffs and method for colouring keratinic fibres by means of said dyestuffs |
| 08/11/2005 | WO2005058840A3 Method of coloring with capped diazotized compound and coupling component |
| 08/11/2005 | US20050172422 Dye composition comprising at least one direct dye of the azo-pyridinio-pyridone family and at least one different synthetic dye, and process |
| 07/14/2005 | US20050154195 Reacting an amine compound with alcoholate in presence of solvent |
| 07/13/2005 | CN1639266A Process for the preparation of cationic azo compounds |
| 07/07/2005 | US20050144741 Composition for dyeing keratin fibres with a cationic direct dye and a thickening polymer |
| 06/30/2005 | WO2005058840A2 Method of coloring with capped diazotized compound and coupling component |
| 06/09/2005 | US20050120493 Process for exchanging the anions of cationic compounds |
| 05/24/2005 | US6896945 Optical data carrier comprising a phthalocyanine dye as light-absorbent compound in the information layer |
| 05/17/2005 | US6893471 For dyeing human hair |
| 05/05/2005 | US20050091764 Coloring keratin fibers, hair |
| 05/05/2005 | US20050091761 Phenazine cationic dyes; hair dyes with oxidation dye precursors |
| 04/26/2005 | US6884267 2-(4-(3-Aminopyrazol-1-yl)phenylazo)-1,3-dimethyl-3H-imidazol-1-ium perchlorate is a prefered example |
| 04/26/2005 | US6884266 Dyeing composition for dyeing keratinous fibers comprising a cationic azo-dye |
| 04/26/2005 | US6884265 A stable direct dyes, hair dyes, like oxidation color dyes, chemical resistance, photostability, weatherproofing, wash and wear; comprising imidazolinium, triazolium and pyridinium groups |
| 04/19/2005 | US6881230 Dyeing composition for dyeing keratinous fibers comprising a cationic azo-dye |
| 03/10/2005 | WO2002080150A8 Optical data medium containing, in the information layer, a dye as a lightabsorbing compound and having a protective covering layer of predetermined thickness |
| 02/24/2005 | US20050042407 containing a cyanovinylene group; can be written on or read by blue light, preferably laser light |
| 02/10/2005 | WO2005012437A1 Cationic direct dyes |
| 02/02/2005 | EP1502579A1 Composition for dyeing keratinic fibres comprising a particular azodiazine as direct dye and processes applying it |
| 01/18/2005 | US6843256 Cationic imidazole dyes; storage stability |
| 12/28/2004 | US6835725 Cyanine dye containing heterocylic rings; satisfies light stability, favorable signal/noise rato, damage free application to the substrate material, use in the information layer in a write-once optical data carrier |
| 12/23/2004 | US20040257973 Optical data medium containing; in the information layer, a dye as a light-absorbing compound |
| 12/22/2004 | CN1556839A Cationic reactive dyes |
| 12/09/2004 | US20040244127 Cationic reactive dyes |
| 12/08/2004 | EP1483334A2 Process for exchanging the anions of cationic compounds |
| 12/01/2004 | CN1551756A Dyeing composition for keratinous fibers comprising a particular dicationic diazo dye |
| 11/30/2004 | US6824570 Chromatic direct dyes of 2-azo benzimidazole, benzothiazole or benzoxaozle derivatives |
| 11/24/2004 | EP1478696A1 Process for the preparation of cationic azo compounds |
| 11/18/2004 | DE19752665B4 Azofarbstoffe Azo dyes |
| 11/10/2004 | CN1545702A Optical data carrier containing a phthalocyanine colouring agent as a light absorbing compound in the information layer |
| 11/10/2004 | CN1545700A Optical data carrier that contains a cationic aminoheterocyclic dye as the light-absorbing compound in the information layer |
| 10/27/2004 | CN1541086A Dyeing compson. for kerationous fibres comprising particular dicationic diazo dye |
| 10/21/2004 | US20040205912 used to dye natural or synthetic materials especially paper; dyes are in solution or solid forms so they eliminate dust formation |
| 10/14/2004 | US20040200009 variety of molecules used as oxidation bases and couplers allows a wide range of colors to be obtained; hair dye |
| 10/07/2004 | US20040194229 Dye composition comprising at least one polycationic direct dye, dyeing processes, uses, and multi-compartment devices |
| 09/30/2004 | WO2004083312A2 Cationic dimeric dyes |
| 09/30/2004 | US20040187231 Human hair dyes or paper dyes; comprising two quaternized amines in compound; hydrazone dyes; colorfastness, washfastness, storage stability |
| 09/30/2004 | US20040187225 Novel dyeing composition for dyeing keratinous fibres comprising a particular dicationic diazo dye |
| 09/29/2004 | CN1533416A Dye incorporating anionic and cationic groups |
| 09/22/2004 | CN1531724A Optical data carrier containing heterocyclic azy dye as light-absorbing compound in information layer |
| 09/15/2004 | CN1529884A 光记录介质 The optical recording medium |
| 09/10/2004 | WO2004076564A1 Cationic dyes, their production and use |
| 09/08/2004 | CN1527996A Optical data store mediam comprising axially substituted cobalt phthalocyanine in the light-writable information layer |
| 09/02/2004 | US20040168265 Cationic dyes |
| 09/02/2004 | US20040168263 As stable as oxidation dyes toward light and also resistant to bad weather, washing and perspiration, and which, in addition, are sufficiently stable in presence of oxidizing and reducing agents to be able to simultaneously obtain lightening |
| 08/12/2004 | US20040158049 Monoazo and disazo dyes with hydroxynaphthalene aminocarbonyl groups and aminotriazines and salts for liqids used in dyeing and printing, inks or ink jets |
| 08/05/2004 | US20040148711 Dye composition for keratin fibers, with a cationic direct dye and a substantive polymer |
| 08/04/2004 | EP1442082A1 Dyes incorporating anionic and cationic groups |
| 07/29/2004 | US20040143913 Coupling, oxidation; monoazo dyes |
| 07/29/2004 | US20040143911 Dyeing composition for keratinous fibres comprising a particular dicationic diazo dye |
| 07/28/2004 | CN1516872A Optical data carrier that contains triazacyanine dye as light-absorbing compound in information layer |
| 07/21/2004 | CN1515002A Optical data carrier whose information layer contains light-absorbing compound having a number of chromophoric centers |
| 07/14/2004 | CN1513176A Optical data carrier that contains triazycyanine dye as light-absorbing compound in the information layer |
| 07/14/2004 | CN1513175A Optical data carrier that contains merocyanine dye as light-absorbing compound in the information layer |
| 07/14/2004 | CN1513174A Optical data carrier containing axially substituted co-phthalocynine in the information layer that can be written with light |