| Patents for C09B 43 - Preparation of azo dyes from other azo compounds (1,452) |
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| 07/21/1999 | EP0811041B1 Method of dyeing polyester and polyester-containing textile materials |
| 07/20/1999 | US5925746 Azo dyes, processes for their preparation and the use thereof |
| 07/13/1999 | US5922865 Using an anionic dye |
| 07/13/1999 | US5922089 Method of dyeing polyester and polyester-containing textile materials |
| 07/08/1999 | DE19831375A1 Azo dyes for dyeing or printing of synthetic materials |
| 06/24/1999 | WO1999031182A1 Mono-azo dyes and inks for ink-jet printing |
| 06/17/1999 | WO1999029782A1 Mono-azo dyes and inks for ink-jet printing |
| 06/08/1999 | US5910578 Novel azo dyes useful for dyeing or printing synthetic materials |
| 05/26/1999 | EP0918074A1 Azo dyes, their preparation and use thereof |
| 05/26/1999 | EP0808343B1 Process for preparing reactive azo dyes |
| 05/06/1999 | EP0634457B1 Azo dyes for color filter and process for producing color filter |
| 04/08/1999 | WO1999016833A1 Bridged monoazo compounds |
| 03/30/1999 | US5888286 Bisazo ink-jet dyes |
| 03/16/1999 | US5883167 Process for the preparation of highly coloured diazo pigment mixtures |
| 03/02/1999 | US5876627 Dichroic dye liquid crystal composition containing the dye, and liquid-crystal element |
| 02/25/1999 | DE19735769A1 Magenta azo dye used in ink-jet printing ink |
| 02/24/1999 | EP0897577A1 Photorefractive composite |
| 02/17/1999 | CN1208059A Substantive disazo dyes |
| 02/16/1999 | US5872228 Hydrolysis of maleoylated azo dye and reaction with halide compound |
| 02/10/1999 | EP0896032A1 Substantive dis- and trisazo dyestuffs |
| 01/14/1999 | WO1999001513A1 Composition |
| 01/14/1999 | WO1999001510A1 Monoazo dyes and inks containg them |
| 01/12/1999 | US5859216 Dyeing or printing natural or synthetic polyamides |
| 01/07/1999 | EP0889098A2 Azo dyes, process for their preparation and the use thereof |
| 12/16/1998 | EP0884367A2 Cationic diphenylamine dyestuffs and their anhydrobases |
| 12/01/1998 | US5844101 Light-fast disazo dyestuffs |
| 12/01/1998 | US5844100 Ink compositions containing azo dyes for ink jet printing |
| 11/11/1998 | CN1040643C Process for preparing [5-amino-2-(2-hydroxyethylamino)-phenyl] (2-hydroxyethyl) sulphone |
| 11/05/1998 | DE19718523A1 Amino-di:aryl-azo compounds preparation |
| 10/20/1998 | US5824785 Dyes with naphthol and triazine groups for inks |
| 10/13/1998 | US5820661 Water, water soluble organic solvents and dye |
| 09/23/1998 | EP0866105A2 Recording liquid and disazo dyes |
| 09/01/1998 | US5801230 Polyfunctional azo reactive dyestuffs |
| 08/26/1998 | EP0754206B1 Dyes for ink jet printing |
| 08/18/1998 | US5795971 For paper, cellulose |
| 08/11/1998 | US5792222 Anionic acid substituted-triazine dye |
| 07/30/1998 | WO1998032802A1 Soluble chromophores having improved solubilising groups |
| 07/30/1998 | CA2275965A1 Soluble chromophores having improved solubilising groups |
| 07/28/1998 | US5786459 Tetrazo dyestuffs |
| 06/30/1998 | US5773593 Waterfastness, lightfastness, optical density |
| 06/30/1998 | US5773172 Solvent and binder solubility |
| 05/26/1998 | US5756692 Chemical compounds |
| 04/28/1998 | US5744591 Red dyestuffs |
| 03/26/1998 | WO1998012264A1 Azo dyes for ink-jet printing |
| 03/26/1998 | WO1998012263A1 Azo dyes for ink-jet printing |
| 03/25/1998 | EP0831130A1 New light fast disazodyes |
| 03/24/1998 | US5731110 Photoresist composition for use in color filters |
| 03/11/1998 | EP0827984A1 Amino lower alkylnaphthaline carboxylic acid dyestuffs |
| 02/24/1998 | US5721344 Ink compositions containing azo dyes for ink jet printing |
| 02/18/1998 | CN1173888A Process for preparing reactive AZO dyes |
| 02/18/1998 | CN1173520A Process for preparation of highly coloured diazo pigment mixtures |
| 02/04/1998 | EP0822235A2 Process for the manufacture of disazo pigment mixtures with a high tinctorial power |
| 02/03/1998 | US5713992 Containing a triaminotriazine monoazo magenta dye; light and water fastness, high density, solubility and storage stability |
| 01/13/1998 | US5708151 Cationic imidazole azo dyes |
| 12/30/1997 | US5703215 Water-soluble dyes which are polymerizable containing molecules which contain a nucleophilic group and an electrophilic group |
| 12/16/1997 | US5698681 Fiber reactive dye for leather, polyamides, cellulose |
| 12/10/1997 | EP0811041A1 Method of dyeing polyester and polyester-containing textile materials |
| 11/26/1997 | EP0808343A1 Process for preparing reactive azo dyes |
| 11/25/1997 | US5691459 Disazo dyes containing two carbonylamino groups processes for their preparation and their use |
| 11/20/1997 | WO1997043759A1 Photorefractive composite |
| 11/20/1997 | CA2254118A1 Photorefractive composite |
| 11/11/1997 | US5686585 Magenta or red dyes |
| 11/04/1997 | US5684140 A magenta azo dye |
| 11/04/1997 | US5684139 Direct disazo dyestuffs |
| 10/15/1997 | CN1161994A Yellow disperse dyes of azo-diphenylamines |
| 10/01/1997 | EP0798413A1 Method for dyeing fibrous materials containing natural or synthetic polyamide |
| 09/10/1997 | EP0794233A1 Anionic acid dyes, process for their manufacture and use thereof |
| 07/22/1997 | US5650497 Azo dyes, processes for their preparation and their use |
| 07/08/1997 | US5646257 For dyeing and printing cellulose containing materials |
| 06/17/1997 | US5639864 Heat resistant direct dyes for dyeing polyester/cotton blends in one step |
| 06/10/1997 | US5637679 Water resistance, wear resistance, resolution, colorfastness |
| 06/04/1997 | EP0639237B1 Dyes, their preparation and use in the coloration of substrates |
| 05/20/1997 | US5631352 Azodyes containing a bridge member based on diamino-substituted triazines |
| 05/06/1997 | WO1999021922A1 Disazodyes for ink jet printing |
| 03/26/1997 | CN1145933A Azo dyes, processes for their preparation and their use |
| 03/11/1997 | US5609796 Dye containing polarizing film |
| 03/11/1997 | US5609673 Recording liquid |
| 02/19/1997 | EP0758672A1 Recording fluid |
| 02/12/1997 | EP0640116B1 Azo dyes with an acetalised diazo component from the thiophene o r thiazol series |
| 01/29/1997 | EP0755984A1 Dyes for ink jet printing |
| 01/22/1997 | EP0754733A1 Azodyes, process for their preparation and use thereof |
| 01/22/1997 | EP0754732A1 Azo dyes, process for their preparation and use thereof |
| 01/22/1997 | EP0754207A1 Dyes for ink jet printing |
| 01/22/1997 | EP0754206A1 Dyes for ink jet printing |
| 01/22/1997 | CA2181663A1 Azo dyes, processes for their preparation and their use |
| 01/15/1997 | EP0753543A1 Substantive disazo dyestuffs |
| 01/15/1997 | EP0753542A1 Polyazo dyestuffs |
| 12/31/1996 | US5589316 Heterocyclic azo dyes on supports for images |
| 12/04/1996 | EP0745650A1 Polyfunctional azo reactive dyes |
| 11/21/1996 | DE19618586A1 Mono:azo disperse dyes and mixts. giving fast dyeing on hydrophobic material |
| 11/21/1996 | DE19518356A1 Pure brilliant sulpho naphthyl azo-amino sulpho-naphthol dye prepn. |
| 10/16/1996 | CN1133323A Azo-dye mixer, azo-dye preparation and application thereof |
| 10/16/1996 | CN1133322A Azo-dye, preparation process and application thereof |
| 09/10/1996 | US5554734 AZO dyes containing a bridge member based on stibene and morpholino-substituted triazine |
| 09/10/1996 | US5554731 Process for the preparation of aminoazo dyes |
| 09/06/1996 | WO1996026985A1 Recording fluid |
| 09/06/1996 | WO1996026982A1 Method of dyeing polyester and polyester-containing textile materials |
| 08/27/1996 | US5549853 Nonlinearly varying optical radiation by interacting with specified linked azo dyes |
| 08/15/1996 | WO1996024637A1 Process for preparing reactive azo dyes |
| 08/15/1996 | WO1996024636A1 Dyes for ink jet printing |