| Patents for C09B 43 - Preparation of azo dyes from other azo compounds (1,452) |
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| 09/07/1993 | CA2087489A1 Chemical compositions |
| 08/31/1993 | US5241054 Yellow, orange, red dye, especially for paper, cellulose |
| 08/18/1993 | EP0555699A2 Aromatic compounds substituted by an urethane group and by an amino group |
| 08/11/1993 | EP0554695A1 Monoazo dyes and mixtures containing them |
| 08/05/1993 | WO1993015596A2 Functionalized merocyanine dyes and polymers incorporating such dyes |
| 08/05/1993 | CA2128218A1 Functionalized merocyanine dyes and polymers incorporating such dyes |
| 08/03/1993 | US5233028 Dicyanoimidazole compound derivative, and magenta toner, for colored resin, colored molded resin member and a color filter incorporating it |
| 07/06/1993 | US5225545 Colorfast |
| 06/30/1993 | EP0549530A1 Process for dyeing or printing hydroxyl group containing fiber materials |
| 06/30/1993 | EP0549529A1 Process for dyeing or printing of hydroxyl group-containing fiber materials |
| 06/16/1993 | EP0546366A1 Monoazo dyes and mixtures containing them |
| 06/08/1993 | US5218095 Disperse dye for dyeing synthetic hydrophobic textiles |
| 06/01/1993 | US5216140 Monoazo dye and preparation and use thereof |
| 03/31/1993 | EP0534587A2 Sublimation transfer recording system |
| 03/28/1993 | CA2071661A1 Magenta dyestuff for sublimation transfer recording |
| 03/23/1993 | US5196520 Azo dyes, their preparation and the use thereof |
| 02/09/1993 | US5185435 Process for the preparation of bisazo pigments in halogen-free solvents |
| 02/02/1993 | US5183881 Chemical intermediate for metallized dyes |
| 02/02/1993 | US5183501 Ink compositions for ink jet recording |
| 01/20/1993 | EP0524149A2 Azo dyes, method for their preparation and their use |
| 01/20/1993 | EP0524147A2 Azo dyes, method for their preparation and their use |
| 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 |
| 12/30/1992 | EP0520241A2 Process for the preparation of reactive dyestuffs and new reactive dyestuffs |
| 12/23/1992 | EP0519270A2 Process for the preparation of acetalised azo dyestuffs |
| 12/08/1992 | US5169404 Vaporization from surface of carrier to substrates |
| 11/19/1992 | EP0514330A1 Azodyes |
| 11/03/1992 | US5160495 2-cyano-4,6-dimitro-phenyl monoazo dyestuffs |
| 10/01/1992 | DE4209261A1 Anionische disazoverbindungen Anionic diazo compounds |
| 09/22/1992 | US5149366 Disazo compound and ink composition containing the same |
| 09/01/1992 | US5144015 Synthesis of pyrazole dyes |
| 08/12/1992 | EP0498769A1 Process for synthesizing bisazopigments in halogen-free solvents |
| 07/01/1992 | EP0492444A1 Novel synthesis of pyrazole dyes |
| 06/22/1992 | CA2057370A1 Synthesis of pyrazole dyes |
| 06/02/1992 | US5118737 Water-soluble dye |
| 06/02/1992 | CA1302403C Amyloidosis and alzheimer's disease diagnostic assay and reagents therefor |
| 04/22/1992 | EP0481475A1 Disazo compound and ink composition containing the same |
| 04/22/1992 | EP0481449A2 Ink compositions for ink jet recording |
| 04/21/1992 | US5107025 For monoazo dye synthesis |
| 04/14/1992 | US5104572 High dichroic ratio, solubility, displays |
| 03/24/1992 | US5098474 A vehicle and a solvent for dyes in printing inks for bonding with amines |
| 03/11/1992 | EP0474039A1 Ortho-aminoazo compounds |
| 01/29/1992 | EP0468922A2 Use of polyazodyes for dyeing leather |
| 01/29/1992 | EP0468648A1 Anionic bis(hydroxynaphthylamino) disazo dyestuffs and use thereof for ink jet printing |
| 01/29/1992 | EP0468647A1 Anionic compounds |
| 01/15/1992 | EP0465963A1 Thiophene azo dyes |
| 01/08/1992 | EP0465420A1 Azo dyestuffs |
| 01/02/1992 | EP0463526A1 Monoazo dyestuff, its preparation and use |
| 12/31/1991 | US5077200 Azo dye chromogenic substrates |
| 12/10/1991 | US5071967 Disazo compounds containing long-chain alkyl ester radicals or alkylamide radicals |
| 10/22/1991 | US5059683 Dyeing paper, textiles, leather |
| 09/17/1991 | US5049189 Method of preparing a solution of sulfonated aryl azo/diaryl guanidine-complexed dye |
| 09/04/1991 | EP0444529A1 Use of dyestuffs for sublimation transfer process |
| 08/28/1991 | EP0443984A1 Phthalimidylazo dyestuffs |
| 08/27/1991 | US5043257 Azo dyes for photographic silver dye bleach material |
| 08/21/1991 | EP0442846A2 Disazo compounds with long-chain alkylester- or alkylamide moieties |
| 08/14/1991 | EP0441255A2 Dicyanoimidazole compound derivative, magenta toner, colored resin, colored molded resin member and color filter incorporating it |
| 08/13/1991 | US5039511 Amyloidosis and alzheimer's disease diagnostic assay and reagents therefor |
| 08/07/1991 | EP0440368A2 Method of preparing a solution of sulfonated aryl azo/diaryl guanidine-complexed dye |
| 08/06/1991 | US5037967 N-phenoxyalkylene anilines as coupling components |
| 08/06/1991 | US5037964 Dyes For Paper And Textiles |
| 07/31/1991 | EP0439423A2 Azodyes, process for their preparation and use thereof |
| 07/31/1991 | EP0439057A1 Monoazo dyes, their preparation and use |
| 07/31/1991 | EP0439038A1 Monoazo dyes, their preparation and use |
| 07/25/1991 | DE4001708A1 New mono:azo dyestuff cpds., prepn. used in dyeing hydrophobic fibre - which are di:cyano benzene azo acyl allyl cyano-alkyl phenylene di:amine cpds. |
| 06/26/1991 | EP0434623A1 Cationic azo dyes |
| 06/19/1991 | EP0432735A2 Liquid crystal coupled dichroic dyes |
| 06/19/1991 | EP0432542A2 Azo dyestuffs and intermediates for their preparation |
| 06/12/1991 | EP0431389A2 Azo dyes and process for the manufacture of [5-amino-2-(2-hydroxyethylamino)phenyl](2-hydroxyethyl)sulfone |
| 04/16/1991 | US5008099 Radioactive iodine-labeled amyloid binding azo compounds |
| 04/09/1991 | US5006128 Substituted 2,4-di[4'-(disulfonaphth-2"-ylazo)phenylamino]-6-amino-1,3,5-triazines |
| 03/19/1991 | US5001229 Water soluble basic dyestuffs |
| 03/07/1991 | WO1991002772A1 Method of obtaining dispersed monoazodyes |
| 03/05/1991 | US4997919 Azo direct dyes containing a non-reactive triazinyl moiety |
| 01/09/1991 | EP0406629A2 Method of producing azo dyes |
| 12/18/1990 | US4978747 Nonmigrating, lightfast; dyeing polymers |
| 10/10/1990 | EP0391121A1 Monoazo dyes, their preparation and use |
| 08/07/1990 | US4946948 Coloring polyolefins |
| 06/20/1990 | EP0373797A1 Azo dyes and use thereof as image dyes in photographic silver dye bleach materials |
| 06/12/1990 | US4933156 Iodine labeled binding compounds |
| 06/06/1990 | EP0371327A2 Monoazo dyes, their preparation and their use |
| 05/23/1990 | EP0369643A2 Ink-jet printing inks |
| 03/28/1990 | EP0360085A2 Offset printing and offset dyestuffs |
| 03/20/1990 | US4910299 Azo group attached to phenyl ring |
| 03/14/1990 | EP0358604A2 Disazo compounds containing long-chain alkyl, ester or alkylamino rests |
| 03/13/1990 | US4908062 Water-soluble dye |
| 03/07/1990 | EP0357560A2 Anionic triazinylamino-disazo dyes |
| 02/14/1990 | EP0354409A1 Fibre-reactive dyes, process for their preparation and their use |
| 12/27/1989 | EP0348344A1 Azo dyes |
| 11/15/1989 | EP0341744A2 Azo compound and liquid crystal composition containing the same |
| 11/08/1989 | EP0341214A2 Basic 6-hydroxypyrid-2-one compounds |
| 11/02/1989 | EP0339421A2 Dye |
| 10/24/1989 | US4875903 Monoazo compounds containing a 2-sulfophenyl diazo component radical and a 1-hydroxy-naphthalene-sulfonic or disulfonic acid coupling component radical and two substituted 1,3,5-triazine rings |
| 09/21/1989 | DE3907163A1 Anionische disazofarbstoffe Anionic disazo dyes |
| 09/12/1989 | US4866163 Dyeing and printing of hydroxy group or nitrogen containing organic substrates; colorfastness |
| 07/26/1989 | EP0325041A2 Water-soluble dye |
| 07/26/1989 | CN1034215A Cyanogenation method of azo-dyes in liq.-solid phase |
| 07/11/1989 | US4847404 Fluorescent dyes, optical brighteners |
| 06/28/1989 | EP0321778A2 Basic dyes |
| 06/20/1989 | US4841034 Color- and washfast on cotton or blends |