| Patents for C09B 33 - Disazo or polyazo dyes of the types a k b, a b k c, or the like, prepared by diazotising and coupling (1,032) |
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| 12/03/1997 | CN1166849A Multifunctional cyanate ester and epoxy blends |
| 12/02/1997 | US5693766 Dye diffusion thermal transfer printing |
| 11/12/1997 | EP0806198A2 Dyeing composition |
| 11/12/1997 | EP0708710B1 Dye diffusion thermal transfer printing |
| 10/22/1997 | EP0802240A2 Process for the manufacture of liquid dyestuff preparations with a low salt content |
| 10/18/1997 | CA2202718A1 Process for the preparation of low-salt, liquid dyestuff preparations |
| 10/16/1997 | WO1997038052A1 Trisazo dyes |
| 10/09/1997 | DE19613315A1 Trisazofarbstoffe Trisazo dyes |
| 09/17/1997 | EP0794979A1 Multifunctional cyanate ester and epoxy blends |
| 09/16/1997 | US5668260 Tetrakisazo Compounds, the method of preparation thereof and the process of pyeing |
| 08/28/1997 | WO1997027248A3 Acid disazo dyes as well as sulphonamides as their intermediate product |
| 08/21/1997 | WO1997019916A3 Bisazo compounds, intermediates thereof, process for synthesizing the same and therapeutic agent for viral infection containing the same |
| 07/31/1997 | WO1997027248A2 Acid disazo dyes as well as sulphonamides as their intermediate product |
| 06/17/1997 | US5639864 Heat resistant direct dyes for dyeing polyester/cotton blends in one step |
| 06/05/1997 | WO1997019916A2 Bisazo compounds, intermediates thereof, process for synthesizing the same and therapeutic agent for viral infection containing the same |
| 05/20/1997 | US5631352 Azodyes containing a bridge member based on diamino-substituted triazines |
| 04/15/1997 | US5621107 Used as coupling components for disazo dyes |
| 04/02/1997 | EP0765154A1 Direct-acting hair colouring agent |
| 04/01/1997 | US5616778 Diazo dyes as disperse dyes into alkydmelamine-formaldehyde resin; colorfastness, radiation and heat resistance |
| 04/01/1997 | US5616695 Azo dyes containing a 1-alkyl-6-hydroxy-4-methyl-3-sulfomethyl-pyrid-2-one coupling component |
| 04/01/1997 | US5616694 Disazo dyes; coloring cellulose and ink jet printing |
| 02/27/1997 | WO1997007168A1 Acid disazo dyes |
| 02/25/1997 | US5606034 Process for the preparation of azo dyes |
| 02/20/1997 | DE19530176A1 Saure Diazofarbstoffe Acid diazo dyes |
| 12/03/1996 | US5580964 Cationic thiadiazole dyestuffs |
| 10/23/1996 | EP0738764A1 Tetrakisazo compounds, their preparation and their use as dyestuffs |
| 10/16/1996 | CN1133323A Azo-dye mixer, azo-dye preparation and application thereof |
| 10/16/1996 | CN1133322A Azo-dye, preparation process and application thereof |
| 09/24/1996 | US5559216 Azo coupling |
| 09/10/1996 | US5554737 Doubled acid azo dyes with a hydroxypyridone coupling component |
| 09/10/1996 | US5554734 AZO dyes containing a bridge member based on stibene and morpholino-substituted triazine |
| 08/27/1996 | US5549853 Nonlinearly varying optical radiation by interacting with specified linked azo dyes |
| 07/03/1996 | EP0719838A1 Azo dyestuffs |
| 06/06/1996 | WO1996017020A1 Multifunctional cyanate ester and epoxy blends |
| 05/21/1996 | US5519121 Triazinyl-amino bridge-containing disazo dyestuffs |
| 05/02/1996 | WO1996012750A1 Polymer compositions containing substituted biphenyl pyrazines |
| 05/02/1996 | WO1996012709A1 Substituted biphenyl pyrazines |
| 05/01/1996 | EP0708710A1 Dye diffusion thermal transfer printing |
| 04/23/1996 | US5510468 Amino benzophenone dye |
| 04/02/1996 | US5503666 Dyestuffs and their use in inks for ink-jet printing processes |
| 03/06/1996 | EP0699719A2 Azodyes, process for their preparation and the use thereof |
| 02/27/1996 | US5494507 Waterfastness |
| 02/08/1996 | DE19525496A1 Azofarbstoffe und Zwischenprodukte, deren Herstellung und Verwendung Azo dyes and intermediates, their preparation and use |
| 01/30/1996 | US5488101 Dyes with naphthol groups for images and fibers |
| 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 |
| 01/03/1996 | EP0690103A1 Azo dyes, process for their preparation and the use thereof |
| 12/21/1995 | WO1995034273A1 Direct-acting hair colouring agent |
| 12/20/1995 | CN1113506A Doubled acid azo dyes with a coupling component of the hydroxypyridone series and intermediates therefor |
| 12/05/1995 | US5473053 Magenta poly-azo compounds |
| 11/28/1995 | US5470959 For leather |
| 11/08/1995 | EP0681004A1 Double acid azo dyes having a hydroxypyridone-type coupler as well as their intermediate products |
| 11/07/1995 | US5464941 Biphenyl pyrazine compounds |
| 11/07/1995 | US5464923 Polymer compositions containing substituted biphenyl pyrazines |
| 11/02/1995 | EP0679173A1 Azo compound |
| 10/26/1995 | WO1995028287A1 Dye diffusion thermal transfer printing |
| 10/18/1995 | EP0677557A1 Dyes and the use thereof in inks for ink jet printing process |
| 10/04/1995 | EP0675169A2 Cationic thiadiazole dyes |
| 09/13/1995 | EP0671441A2 Disazo dyes |
| 08/30/1995 | EP0669380A2 Process for the preparation of azo dyes |
| 06/27/1995 | US5428136 Printing inks; for coloring natural and artificial materials, paper |
| 05/09/1995 | US5413630 Colorant and ink compositions |
| 01/10/1995 | US5380859 Pyridone compounds and the preparation of disulfonated pyridone compounds |
| 01/03/1995 | US5378818 Doubled azo dyes |
| 12/28/1994 | EP0630945A1 Use of reticulated azo dyes in non-linear optics |
| 11/22/1994 | US5366543 Alcohol-soluble dye and ink composition containing the same |
| 11/10/1994 | DE4314787A1 N-Benzylated triazoleazo dyes and preparation thereof |
| 10/26/1994 | EP0572450B1 Azo dyes having a diazo component from the aminobenzophenone series, as well as bisulphonated pyridone compounds |
| 09/07/1994 | EP0270685B1 Photosensitive material for electrophotography |
| 07/21/1994 | WO1994016021A1 Azo compound |
| 07/12/1994 | US5328995 Azo dyes containing triazine middle components and a 1,4-phenylene-2,5-disubstituted coupling component |
| 06/15/1994 | EP0601401A1 Duplicated azo dyes |
| 06/06/1994 | CA2110349A1 Doubled azo dyes |
| 03/29/1994 | US5298609 Disazo compounds containing cycloalkyl ester or cycloalkylamide groups |
| 03/22/1994 | CA1327967C Anionic triazinylamino-disazo dyestuffs |
| 03/15/1994 | CA1327792C Polyazo dyes and intermediates therefor |
| 03/09/1994 | EP0585873A1 Method of preparing disazo pigments |
| 02/02/1994 | EP0581245A1 Water-insoluble azo colouring agents |
| 02/01/1994 | CA2101681A1 Water-insoluble azo colorants |
| 01/26/1994 | EP0580554A1 Mixtures of aminopyridine compounds, process for their preparation, and their use |
| 12/08/1993 | EP0572599A1 Ion-sensitive dyes |
| 12/08/1993 | EP0572450A1 Azo dyes having a diazo component from the aminobenzophenone series, as well as bisulphonated pyridone compounds. |
| 12/07/1993 | US5268459 Anionic azo compound |
| 11/16/1993 | US5262527 Disazo dyes suitable for use in ink jet printing |
| 07/07/1993 | EP0549935A2 Polyazo dyes with a diazo component of the aminobenzophenom type |
| 07/06/1993 | US5225545 Colorfast |
| 06/24/1993 | WO1993012428A1 Ion-sensitive dyes |
| 06/01/1993 | US5216437 Color change resistance; clogging resistance |
| 01/13/1993 | EP0523005A2 Disazodyes with cycloalkylester or cycloalkylamide rests |
| 01/05/1993 | US5176717 Use of sulfonated polyazo dyes for dyeing leather in brilliant fast red shades |
| 12/16/1992 | EP0518266A1 Trisazo compounds, method for dyeing fiber materials, paper or leather using the same and inks containing the same |
| 11/19/1992 | EP0514330A1 Azodyes |
| 09/03/1992 | WO1992014791A1 Azo dyes having a diazo component from the aminobenzophenone series, as well as bisulphonated pyridone compounds |
| 08/27/1992 | DE4105257A1 Azofarbstoffe mit einer diazokomponente, die sich von einer aminobenzophenonsulfonsaeure ableitet Azo dyes with a diazo component derived from a aminobenzophenonsulfonsaeure |
| 08/18/1992 | US5139573 Ink, and recording method making use of same |
| 06/09/1992 | CA1302767C Electrophotographic photoreceptor |
| 06/02/1992 | US5118737 Water-soluble dye |
| 05/26/1992 | US5116955 Controlling the ratio of stream flow of the diazonium compound and base to the pH-adjusted aqueous solution of resorcinol and buffer system; coupling |
| 04/14/1992 | US5104979 Leather; light- and wet-fastness |
| 01/29/1992 | EP0468922A2 Use of polyazodyes for dyeing leather |