| Patents for C09B 43 - Preparation of azo dyes from other azo compounds (1,452) |
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| 10/29/2008 | CN100429203C Dyeing compsn. for kerationous fibres comprising particular dicationic diazo dye |
| 10/15/2008 | CN101284800A Monoazo compounds with alkoxy, preparation method and uses thereof |
| 10/08/2008 | CN101280118A Weather-resistant azo-dyes, preparation and use thereof |
| 09/25/2008 | US20080233289 Dyes Comprising [(4-[2-Amino-3,6-Disulpho-8-Hydroxynaphth-1-Ylazo]Anilino)- 1,3,5-Triazinyl] Moities |
| 09/24/2008 | CN101273095A Disperse azo dyes and mixtures comprising these disperse azo dyes |
| 09/17/2008 | EP1378549B1 Aqueous ink composition, water-soluble dye composition and ink-jet recording method |
| 09/10/2008 | CN101260245A Medium black 2B technique |
| 09/09/2008 | CA2482895C Coloring composition and inkjet recording method |
| 09/02/2008 | US7419620 crosslinkable liquid crystals and polymerisable dichroic dyes, especially azo or anthraquinone dyes; liquid crystalline polymer film and use in preparation of optical elements and construction of security devices |
| 08/07/2008 | US20080184499 Printing, dyeing synthetic hydrophobic fibers, textiles |
| 08/06/2008 | CN100408157C Reaction method using microreactor |
| 07/23/2008 | EP1385914B1 Dichroic mixture |
| 07/17/2008 | DE19618586B4 Monoazo-Dispersionsfarbstoffe Monoazo disperse dyes |
| 07/16/2008 | CN101223243A Water-soluble azo compound, ink composition and colored body |
| 07/16/2008 | CN101220213A Diphenyl ketone containing nitryl azobenzene dye through ether linkage, synthesis and application thereof |
| 07/09/2008 | EP1942154A1 Water soluble azo compound, ink composition, and colored material |
| 07/02/2008 | CN100398612C Azo compound, aqueous dye solutions containing the same, inks and use thereof |
| 07/01/2008 | US7393403 reaction of a hydrophilic group-containing halide and the coloring agent in the presence of a Lewis acid catalyst; storage stability and dispersion stability using a one-step process |
| 06/17/2008 | US7387668 Azo compound, aqueous dye solutions containing the same, inks and use thereof |
| 06/03/2008 | CA2442714C Aqueous ink composition, water-soluble dye composition and ink-jet recording method |
| 05/28/2008 | CN100390235C Azo compound and process of producing the same, amd novel compound and process of producing azo compounds using the same |
| 05/14/2008 | EP1921116A1 Water-soluble azo compounds, ink compositions and colored products |
| 05/14/2008 | CN100387657C Use of disazo compound |
| 04/30/2008 | EP1915428A1 Process, compound, ink and use |
| 04/30/2008 | EP1463781B1 Use of a dyestuff for ink jet printing recording materials |
| 04/23/2008 | EP1913091A2 Azo compounds |
| 04/09/2008 | CN100379825C Phthalimidyl-azo dyes, process for their preparation and their use |
| 04/08/2008 | US7355044 Self-assembling dyes |
| 04/01/2008 | US7351808 For dyeing natural or synthetic materials, in particular, paper |
| 03/26/2008 | CN101151332A Novel polymerizable dye and ophthalmic lens containing the same |
| 03/13/2008 | WO2008029097A1 Process, compound, ink and use |
| 03/05/2008 | EP1893696A1 Disperse azo dyes and mixtures comprising these disperse azo dyes |
| 03/05/2008 | CN100372894C Anionic monoazo dyes |
| 02/07/2008 | US20080028543 reacting an azo compound containing hydroxyphenyl and 4-amino-2'-nitro-4'-sulpho-1,1'-diphenyl- groups under basic conditions with tert-butylbenzene-4-sulfonyl chloride; for dyeing or printing organic substrate such as wool, silk, and synthetic polyamide |
| 01/30/2008 | EP1882723A1 Bisazo Dyes, their preparation and their use |
| 01/30/2008 | CN100365073C High light fastness reactive red dyes |
| 01/17/2008 | WO2007135361A3 Colorants |
| 01/16/2008 | CN100362054C Production process of azoic disperse dye |
| 01/10/2008 | WO2007132152A3 Compound, ink, process and use |
| 01/09/2008 | CN100360615C Process for preparing azo compound |
| 01/02/2008 | CN100358886C Azo compounds |
| 12/27/2007 | WO2007148035A1 Bis- (oh-triazinyl) - bridged azo dyes, ink, process and use |
| 12/19/2007 | EP1867683A1 Novel polymerizable dye and ophthalmic lens containing the same |
| 12/05/2007 | EP1765931B1 Monoazo dyes |
| 12/05/2007 | CN100352863C Azo dyes |
| 11/27/2007 | US7301013 Azo compounds |
| 11/22/2007 | WO2007132152A2 Compound, ink, process and use |
| 10/04/2007 | WO2007022502A3 Bridged n-cyclic sulfonamido inhibitors of gamma secretase |
| 10/03/2007 | CN100340619C Acidic mono azo dyestuffs |
| 09/20/2007 | US20070214580 Hair dyes; blue or violet dyes with good washfastness, colorfastness, lightfastness; quaternary imidazol-2yl-azo group attached to a m-carbonylaminobenzene group |
| 08/29/2007 | CN101027280A Azo compound, composition for optical alignment film using same, and method for producing optical alignment film |
| 08/23/2007 | US20070197699 Novel substituted-polyaryl chromophoric compounds |
| 08/15/2007 | EP1574552B1 Recording liquid |
| 08/02/2007 | WO2007012828A3 Azo compounds |
| 08/01/2007 | CN1329452C Polymeric bis-acetoacetanilide azo colorants |
| 08/01/2007 | CN101010393A Inkjet ink, method for producing inkjet ink, inkjet recording method, and ink cartridge |
| 07/26/2007 | US20070173641 Azotization of 5-amino-3-t-butyl-4-cyanopyrazole, then reacting with couplers and alkylation or arylation, to form azo dyes, used as inks having colorfastness; liquid crystal displays and plasma display panels; excellent color reproducibility |
| 07/18/2007 | CN1326945C Phthalimidyl azo pigments, method for producing same and utilisation thereof |
| 07/18/2007 | CN100999613A Azo compounds |
| 07/11/2007 | CN1995150A Slightly water-soluble sulfonamide type dye for dying hydrophobic fiber and its preparation |
| 07/11/2007 | CN1325572C Basic mono-and bisazo compounds |
| 07/05/2007 | US20070151479 Acidic monoazo dyestuffs |
| 07/04/2007 | CN1990602A Azo compounds |
| 06/28/2007 | WO2007042767A3 A yellow dye and a process for ink jet printing using the dye |
| 05/31/2007 | US20070119341 Azo compound, aqueous dye solutions containing the same, inks and use thereof |
| 05/16/2007 | CN1965033A Cationic imidazolazo dyes containing a 2,5-diaminophenyl moiety |
| 05/03/2007 | WO2007049366A1 Water soluble azo compound, ink composition, and colored material |
| 05/03/2007 | CA2625660A1 Water soluble azo compound, ink composition, and colored material |
| 04/25/2007 | CN1954035A Monoazo dyes |
| 04/19/2007 | WO2007042767A2 A yellow dye and a process for ink jet printing using the dye |
| 04/17/2007 | US7205347 Substituted-polyaryl chromophoric compounds |
| 04/04/2007 | CN1308405C Process for preparing self-dispersible coloring agent using lewis acids and ink composition comprising the coloring agent |
| 03/28/2007 | EP1767523A1 Azo compound, composition for optical alignment film using same, and method for producing optical alignment film |
| 03/28/2007 | EP1765931A1 Monoazo dyes |
| 03/21/2007 | EP1525267B1 Anionic monoazo dyes |
| 03/20/2007 | US7193067 Derived from 2-aryl-3-alkoxycarbonyl-5-pyrrolinones and 2-aryl-5-pyrrolinones by reaction with diamines or diazo compounds |
| 03/13/2007 | US7189268 Using an 2-azoimidazole compound; dyeing human hair |
| 03/01/2007 | WO2007023733A1 Azo compound and polarizing film containing the compound |
| 02/28/2007 | EP1757660A1 Cationic mixed dyestuffs comprising an anthraquinone chromophore and their use for hair colouring |
| 02/27/2007 | US7183409 Monoazo and disazo dyes with hydroxynaphthalene aminocarbonyl groups and aminotriazines and salts for liqids used in dyeing and printing, inks or ink jets |
| 02/22/2007 | WO2007020719A1 Water-soluble azo compounds, ink compositions and colored products |
| 02/22/2007 | CA2632670A1 Bridged n-cyclic sulfonamido inhibitors of gamma secretase |
| 02/22/2007 | CA2619188A1 Water-soluble azo compounds, ink compositions and colored products |
| 02/06/2007 | US7173114 Lightfast colorant and lightfast ink composition including the same |
| 02/01/2007 | WO2007012828A2 Azo compounds |
| 01/24/2007 | CN1902284A Acidic monoazo dyestuffs |
| 01/16/2007 | US7163576 to improve the light-fastness properties of prints is to prevent images fading or vanishing, or becoming discoloured over time |
| 01/10/2007 | CN1294211C Super molecular structure light thermal stable light fast brilliant red BBC dye and its intercalation method |
| 12/26/2006 | US7153332 Disazo compounds for printing recording materials, especially paper or papery substrates, textile fibre materials, plastic films and plastic transparencies by the ink jet printing process; waterproofing, colorfastness |
| 12/20/2006 | EP1732990A2 Cationic imidazolazo dyes containing a 2,5-diaminophenyl moiety |
| 12/19/2006 | US7150783 to improve the light-fastness properties of prints is to prevent images fading or vanishing, or becoming discoloured over time |
| 12/14/2006 | WO2006131530A1 Disperse azo dyes and mixtures comprising these disperse azo dyes |
| 12/13/2006 | CN1289608C Dye incorporating anionic and cationic groups |
| 12/12/2006 | US7148335 Mono- and bis-hydrazone pigments |
| 12/05/2006 | US7144451 Printing sheet-form substrates by the inkjet printing with an aqueous ink |
| 11/28/2006 | US7141106 Ink jet printing composition comprising a dye containing hydrazine or hydrazide |
| 11/22/2006 | EP1084196B1 Mono- and disazo reactive dyes |
| 11/16/2006 | US20060258854 Azo compounds |
| 11/15/2006 | CN1861692A Direct dark brown NM dye and its preparation |
| 11/15/2006 | CN1861691A Direct blackish green NB dye and its preparation |