| Patents for C09B 43 - Preparation of azo dyes from other azo compounds (1,452) |
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| 08/15/1996 | WO1996024635A1 Dyes for ink jet printing |
| 08/15/1996 | CA2212143A1 Process for preparing reactive azo dyes |
| 08/13/1996 | US5545725 For dyeing paper |
| 08/08/1996 | DE19503889A1 New N-Maleyl-amino-azo-naphthol-sulphonic acids, for reactive dye prepn |
| 08/06/1996 | US5542956 Process for dyeing or printing hydroxyl group containing fiber materials |
| 07/24/1996 | EP0722991A1 Colour-fast monoazo dye, its manufacture and its use |
| 07/16/1996 | CA2031797C Liquid crystal coupled dichloric dyes |
| 07/03/1996 | EP0719838A1 Azo dyestuffs |
| 06/26/1996 | CN1125239A Phosgenation method in course of production of dye and intermediate |
| 06/19/1996 | EP0717089A1 Recording liquid |
| 06/19/1996 | EP0717082A1 Process for the preparation of cationic 1,3,4-thiadiazole dyes |
| 06/18/1996 | US5527889 Disazo dyes containing an alkanoylamino group and a substituted alkoxy group |
| 06/05/1996 | EP0714954A2 Cationic iminazoleazodyestuffs |
| 05/21/1996 | US5519121 Triazinyl-amino bridge-containing disazo dyestuffs |
| 05/04/1996 | CA2161947A1 Cationic imidazole azo dyes |
| 04/02/1996 | US5503666 Dyestuffs and their use in inks for ink-jet printing processes |
| 03/26/1996 | US5502172 Printing and dyeing |
| 03/26/1996 | US5502170 Azo dyes with an acetalized diazo component of the thiophene or thiazole series |
| 03/20/1996 | EP0701906A1 Dyes and dye-donor elements for thermal dye transfer recording |
| 03/12/1996 | US5498701 Basic disazo compounds containing sulphonic acid groups |
| 02/27/1996 | US5495004 For dyeing or printing hydrophopbic polyester fibers or textiles, colorfast, light resistant |
| 02/27/1996 | US5495003 2,2'-disulfo-4,4'-substituted triazinylaminophenyl disazostilbenes |
| 01/24/1996 | EP0693538A2 Azo dyestuff mixtures, azodyes, process for their manufacturing and their use |
| 01/24/1996 | EP0693534A1 Azodyestuffes, process for their preparation and the use thereof |
| 01/24/1996 | EP0600045B1 Hair dye |
| 01/17/1996 | EP0692523A1 Azo dyestuffs, their preparation and use |
| 01/03/1996 | EP0690103A1 Azo dyes, process for their preparation and the use thereof |
| 12/12/1995 | US5474580 Chemical compounds |
| 11/29/1995 | EP0684288A1 Process for the preparation of aminoazo dyes |
| 11/29/1995 | EP0684287A1 Water insoluble red monoazo dyes, their preparation and the use thereof |
| 11/16/1995 | WO1995030717A1 Dyes containing nucleophilic and electrophilic groups |
| 11/14/1995 | US5466791 Monoazo dyes, their preparation and use |
| 11/14/1995 | US5466790 For dyeing or printing of textile fibers |
| 11/14/1995 | US5466282 Azo dye compound, ink containing the same, and recording method and instrument using the ink |
| 11/09/1995 | DE19515251A1 Fibre reactive dis:azo die(s) with high fixation values and good light fastness |
| 10/25/1995 | CN1110696A Synthetic technology of nitro-nitrogen yellow |
| 10/18/1995 | EP0677557A1 Dyes and the use thereof in inks for ink jet printing process |
| 10/11/1995 | CN1109899A Water resolvable zao compound, preparation of same and application as dye |
| 09/13/1995 | EP0671441A2 Disazo dyes |
| 08/29/1995 | US5446136 Pyrazole azo dyestuffs |
| 08/23/1995 | EP0668327A1 Water-soluble azo compounds, process for their preparation and their use as dyestuffs |
| 08/12/1995 | CA2142251A1 Water-soluble azo compounds, preparation thereof, and use thereof as dyes |
| 07/25/1995 | US5436323 Monoazo substituted dye for paper, celllulose and polyacrylonitrile |
| 07/11/1995 | US5432266 Fiber-reactive monoazo and disazo dyes |
| 06/28/1995 | EP0659839A1 Pyrazolazo dyestuffs |
| 06/27/1995 | US5428138 Red 2,6-dicyanophenylazo dyes and the preparation and use thereof |
| 06/14/1995 | EP0657506A1 Azo dyes, their preparation and use |
| 06/13/1995 | US5424403 Preparation of aminoazo dyes |
| 06/06/1995 | CA2034060C Method of preparing a solution of sulfonated aryl azo/diaryl guanidine-complexed dye |
| 05/30/1995 | US5420257 For textiles |
| 05/09/1995 | US5414131 From disazo or disazoxy dye |
| 05/03/1995 | EP0651027A1 Disazo dyestuffs of the stilbene series |
| 05/01/1995 | CA2134487A1 Disazo dyestuffs of the stilbene series |
| 04/25/1995 | US5409502 Hair dye composition containing a 4'-amino-2-halogen-4-{bis-(-hydroxyethyl)amino} azobenzene compound |
| 04/19/1995 | EP0648814A1 Dye containing polarizing film |
| 03/02/1995 | WO1993015596A3 Functionalized merocyanine dyes and polymers incorporating such dyes |
| 02/22/1995 | EP0639237A1 Dyes, their preparation and use in the coloration of substrates. |
| 02/14/1995 | US5389285 Liquid crystal coupled dichroic dyes |
| 01/24/1995 | US5383960 Ink jet printing inks |
| 01/18/1995 | EP0634457A1 Azo color for color filter and process for producing color filter |
| 01/11/1995 | EP0633296A1 Novel dyestuffs and their use |
| 12/28/1994 | EP0630945A1 Use of reticulated azo dyes in non-linear optics |
| 11/30/1994 | EP0626428A1 Azo dye compounds, ink containing the same, and recording method and instrument using the ink |
| 11/02/1994 | EP0621962A1 Functionalized merocyanine dyes and polymers incorporating such dyes |
| 11/01/1994 | CA1332806C Chromogenic substrates |
| 10/26/1994 | CN1094033A Process for preparing Û5-amino-2-(2-hydroxyethylamino)-phenylÙ (2-hydroxyethyl) sulphone |
| 10/11/1994 | US5354849 Sulfo group-containing disazo compounds containing substituted amino-1,3,5-triazinil or- chloropyrimidyl |
| 08/18/1994 | WO1994018274A1 Azo color for color filter and process for producing color filter |
| 08/03/1994 | CN1090304A Chemical Compounds |
| 07/12/1994 | US5328995 Azo dyes containing triazine middle components and a 1,4-phenylene-2,5-disubstituted coupling component |
| 06/28/1994 | US5324826 Can be used to color synthetic or semi-synthetic hydrophobic high molecular weight organic material |
| 06/15/1994 | EP0601406A1 Method for the preparation of (5-amino-2-(2-hydroxyethylamino)phenyl)(2-hydroxyethyl) sulphone |
| 06/14/1994 | US5320648 Process for dyeing or printing hydroxyl group containing fibre materials |
| 06/09/1994 | WO1994012717A1 Dyes, their preparation and use in the coloration of substrates |
| 06/08/1994 | EP0600045A1 Hair dye. |
| 05/04/1994 | EP0595768A1 Azo dyestuffs, process for their preparation and the use thereof |
| 04/13/1994 | EP0592105A2 Reactive dyes |
| 04/06/1994 | EP0591103A1 Disazo colorants for colouring paper |
| 03/29/1994 | US5298609 Disazo compounds containing cycloalkyl ester or cycloalkylamide groups |
| 03/29/1994 | US5298036 Mixture of disazo dyes containing sulfo-substituted 1,4-naphthalene middle components |
| 03/22/1994 | US5296325 Dicyanoimidazole compounds usable as colorants for magenta toners, colored resins, colored molded resin memers and color filters |
| 03/22/1994 | CA1327967C Anionic triazinylamino-disazo dyestuffs |
| 03/08/1994 | US5292872 Monoazo dispersed dyes, mixtures containing them, and the preparation and the use thereof |
| 03/03/1994 | WO1994004613A1 Watersoluble disazodyes for dyeing leather |
| 02/22/1994 | US5288858 Diazo dyes containing a hydroxy alkoxybenzene middle component and a pyrazole coupling component |
| 01/26/1994 | EP0580284A1 3,5-Dinitrothiophenazo disperse dyes |
| 01/19/1994 | EP0579011A1 Cationic thiadiazolediphenylamine dyestuffs |
| 01/11/1994 | US5278293 Azo dyestuffs and intermediate products for their preparation |
| 01/11/1994 | US5278291 Hydroxyethylthio hydroxyethylamino-phenyl-azo and -azoxy dyestuffs |
| 12/23/1993 | WO1993025182A1 Hair dye |
| 12/23/1993 | DE4219738A1 Haarfärbemittel Hair dye |
| 12/14/1993 | US5270456 Azo dyes with A2-aminothiophene dye azo component and a coupling component and coupling component of the diphenylamine series |
| 12/07/1993 | US5268459 Anionic azo compound |
| 11/25/1993 | WO1993023479A1 Azo dyes with an acetalised diazo component from the thiophene o r thiazol series |
| 11/25/1993 | DE4315031A1 New sulphonated dis:azo dyes |
| 11/18/1993 | DE4215495A1 Azofarbstoffe mit einer acetalisierten Diazokomponente aus der Thiophen- oder Thiazolreihe Azo dyes with a acetalated diazo component of the thiophene or thiazole |
| 11/16/1993 | US5262527 Disazo dyes suitable for use in ink jet printing |
| 10/26/1993 | US5256784 Merocyanine dyes |
| 09/21/1993 | US5247071 Preparation of acetalized azo dyes |
| 09/08/1993 | EP0559310A1 Ink compositions |