| Patents for C09B 29 - Monoazo dyes prepared by diazotising and coupling (4,940) |
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| 09/01/1992 | US5144015 Synthesis of pyrazole dyes |
| 09/01/1992 | US5143519 2-(4-azophenyl)-6-methyl-7-benzothiazolesulfonic acid derivatives; paper |
| 08/27/1992 | DE4105257A1 Azofarbstoffe mit einer diazokomponente, die sich von einer aminobenzophenonsulfonsaeure ableitet Azo dyes with a diazo component derived from a aminobenzophenonsulfonsaeure |
| 08/26/1992 | EP0499845A1 Oil-soluble phenylazoaniline dyes |
| 08/11/1992 | US5137833 Quantitative analysis; forming reaction product with boronic, arsenious, germanic acid or compound; measuring emission |
| 08/11/1992 | US5137538 P-Phenylenediamine and N,N'-diphenylalkylenediamines; uniform color on bleached or permed hair |
| 08/04/1992 | US5135571 Recording liquid |
| 07/23/1992 | DE4200739A1 Benzo:isothiazolyl azo dyestuffs useful in thermo-transfer printing - obtd. e.g. from 2-amino-4-nitro-benzisothiazole, nitrosyl sulphuric acid, etc. |
| 07/21/1992 | US5132412 Thiazoleazo dyes having a diazo component from the isothiazole or thiadiazole series |
| 07/21/1992 | US5132411 Blue shades |
| 07/21/1992 | US5132275 Mixture of dyes for black dye donor for thermal color proofing |
| 07/21/1992 | US5132268 Mixture of cyan, magenta and yellow dyes, dye transfer imaging, thermal printing |
| 07/14/1992 | US5130433 Chromogenic thiol indicators based on an isobenzothiazolone ring system |
| 07/01/1992 | EP0492444A1 Novel synthesis of pyrazole dyes |
| 06/30/1992 | US5126435 Reacting azo compound and coupling agent in presence of zinc salt and inert gas; high speed, efficiency, simplification |
| 06/24/1992 | EP0491267A1 Yellow dye mixture for thermal color proofing |
| 06/22/1992 | CA2057370A1 Synthesis of pyrazole dyes |
| 06/17/1992 | EP0490340A1 Yellow dye mixture for thermal color proofing |
| 06/15/1992 | CA2055386A1 Yellow dye mixture for thermal color proofing |
| 06/15/1992 | CA2055320A1 Yellow dye mixture for thermal color proofing |
| 06/09/1992 | US5120872 Textile dyeing |
| 06/02/1992 | US5118737 Water-soluble dye |
| 06/02/1992 | CA1302403C Amyloidosis and alzheimer's disease diagnostic assay and reagents therefor |
| 06/02/1992 | CA1302014C Dye mixtures |
| 05/26/1992 | US5116958 Disperse dyes which are convertible into a thermomigration fast form |
| 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 |
| 05/20/1992 | EP0485665A1 Dyes for use in thermal dye transfer |
| 05/20/1992 | EP0485474A1 A method and a system for quantitatively monitoring a chemical component dissolved in a liquid medium. |
| 05/19/1992 | US5114431 Disperse dye mixture: two red disperse dyes for polyester fibers-azo dyes containing naphthalic imide coupler |
| 05/12/1992 | CA1300605C 2-hydrazono-4,6-dinitrobenzthiazolones |
| 05/06/1992 | EP0483382A1 Metal chelate compound and optical recording medium prepared therefrom |
| 05/05/1992 | USRE33908 Mixtures of blue mono-azo disperse dyestuffs and their use for dyeing polyester |
| 04/28/1992 | US5108903 Reducible compounds which provide leuco dyes for analytical compositions, elements and methods of using same |
| 04/28/1992 | US5108902 Microorganism detection; medical diagnosis |
| 04/28/1992 | US5108502 Boronic acid dyes |
| 04/21/1992 | US5107025 For monoazo dye synthesis |
| 04/21/1992 | US5106960 Azo dyes and the production and use thereof |
| 04/08/1992 | EP0479056A2 Concentrated aqueous solutions of 2-phenylbenzthiazolazoic dyes |
| 04/07/1992 | US5102994 Disperse azo dyestuffs containing a thiocyonate group |
| 04/07/1992 | US5102781 Blue spectral sensitizers for non-tabular silver halide elements |
| 04/07/1992 | US5102466 Production of pigments |
| 04/07/1992 | US5102425 Process for the dyeing and printing of blended fabrics made of polyester and natural fibre materials with cyano-hydroxy-methyl pyridone, azo disperse dye to reduce staining |
| 03/31/1992 | US5101021 4-(5',6'- and 6',7'-dihalobenzothiazol-2'-ylazo)-3-methyl-N-methyl-N-[(acetoxy or methoxycarbonyloxy)-C2-3 alkyl]anilines and mixtures thereof |
| 03/31/1992 | US5100759 Color diffusion transfer photography |
| 03/25/1992 | EP0476086A1 Orange filter dye and filter element for color filter arrays |
| 03/24/1992 | US5099000 Fluorescent compounds for immunoassay as tracers |
| 03/18/1992 | EP0475089A1 Mixtures of monoazo dyes |
| 03/17/1992 | US5097029 Process for preparing 2,3-dihydro-1,3-dialkyl-2,3-dialkyl perimidines and N,N-'-dialkyl-1,8-naphthalene diamines |
| 03/11/1992 | EP0474402A2 Chromophore-containing compounds for opto-electronic applications |
| 03/11/1992 | EP0474039A1 Ortho-aminoazo compounds |
| 03/06/1992 | CA2050716A1 Chromophore-containing compounds for opto-electronic applications |
| 03/03/1992 | US5093307 Thermal printing |
| 02/27/1992 | DE4026903A1 Colour photographic material contg. masking cyan coupler - of bis:acyl-aminophenol azobenzene type with good coupling kinetics, forming stable cyan dyestuff |
| 02/25/1992 | US5091517 Azo dyes containing a 4-aminopyrazolisothiazole diazo compound |
| 02/04/1992 | US5086168 Monoazo pigments derived from diazotized di- or trichloroanilines, preparation thereof and their use |
| 01/29/1992 | EP0468380A1 Magenta dye and thermal transfer material comprising it |
| 01/22/1992 | EP0467155A1 Blue spectral sensitizers for non-tabular silver halide elements |
| 01/16/1992 | DE4121754A1 New heterocyclyl-azo-aniline disperse dyestuff cpds. - for dyeing or printing hydrophobic synthetic or semi-synthetic fibre |
| 01/15/1992 | EP0465963A1 Thiophene azo dyes |
| 01/10/1992 | CA2046144A1 Blue spectral sensitizers for non-tabular silver halide elements |
| 01/08/1992 | EP0465340A1 Keratinous fibres dyeing process with 4-hydroxyindol at acidic pH and compositions |
| 01/08/1992 | EP0465339A1 Keratinous fibres dyeing process with derivatives of 4-hydroxyindol at acidic pH and compositions |
| 01/06/1992 | CA2046035A1 Keratin fibre dyeing method using acid tetrahydroxy-indole and compositions for use therein |
| 01/06/1992 | CA2046034A1 Keratin fibre dyeing method using acid tetrahydroxy-indole derivatives and compositions for use therein |
| 01/02/1992 | EP0463996A2 Azodyes, process for their preparation and the use thereof |
| 01/02/1992 | EP0463995A1 Azo dyestuffs with 2-alkylamino-3-cyano-4,6-diaminopyridines as coupling components |
| 01/02/1992 | EP0463526A1 Monoazo dyestuff, its preparation and use |
| 01/02/1992 | DE4020768A1 New triazolo-pyridine azo dyes - esp. for dyeing cellulose acetate and polyester fibres |
| 12/31/1991 | US5077200 Azo dye chromogenic substrates |
| 12/24/1991 | US5075429 Colorfastness |
| 12/17/1991 | US5073173 Oxidative hair dye mixture |
| 12/11/1991 | EP0460504A1 Dichroic azo dyes |
| 12/10/1991 | US5071968 Azo dyes containing a 7-sulfoalkanoylamino-1,2,3,4-tetrahydroquinoline coupling component |
| 12/10/1991 | US5071967 Disazo compounds containing long-chain alkyl ester radicals or alkylamide radicals |
| 11/27/1991 | EP0458746A1 Azo dyes, process for their preparation and the use thereof |
| 11/26/1991 | US5068318 Diamenodinitroazo dyes |
| 11/21/1991 | EP0457184A2 Naphthol derivatives, method for their preparation and use therefor |
| 11/19/1991 | US5066791 Pyridoneazo dyes with an m-aminobenzoic ester as the diazo component |
| 11/19/1991 | US5066577 Colorfast cyan dye for diffusion transfer photography process |
| 11/18/1991 | WO1991018057A1 Metal chelate compound and optical recording medium prepared therefrom |
| 11/18/1991 | CA2063611A1 Metal chelate compound and optical recording medium using it |
| 11/13/1991 | EP0456443A1 Silver halide color photographic light-sensitive material |
| 10/29/1991 | US5061003 Cover for automobile sun visor mirrors |
| 10/23/1991 | EP0294461B1 Solid particle dispersion filter dyes for photographic compositions |
| 10/22/1991 | US5059684 Azo dyes whose diazo and coupling components stem from the thiazole series |
| 10/22/1991 | US5059683 Dyeing paper, textiles, leather |
| 10/09/1991 | EP0451092A2 Concentrated dyestuff solutions |
| 10/08/1991 | US5055567 Disperse dyes which are convertible into a thermo-migration fast form |
| 10/01/1991 | CA1289946C Azo dyes |
| 09/23/1991 | WO1991014744A1 Monoazo pigment compositions |
| 09/23/1991 | CA2078862A1 Monoazo pigment compositions |
| 09/19/1991 | WO1991013942A1 Orange filter dye and filter element for color filter arrays |
| 09/19/1991 | WO1991013941A1 Water-insoluble azo dyes, their manufacture and use |
| 09/18/1991 | EP0447196A1 Boronic acid dyes |
| 09/18/1991 | EP0446731A2 Process for the manufacture of azo dyes |
| 09/12/1991 | DE4007535A1 Wasserunloesliche azofarbmittel, ihre herstellung und verwendung Water-insoluble azo colorants, their production and use |
| 09/10/1991 | US5047517 Laked pyrazolone azo pigment, process for its preparation and its use |
| 09/10/1991 | US5047516 Wavesuides for altering light characteristics |
| 09/04/1991 | EP0445072A2 Preparation of metallised azo pigments |
| 09/04/1991 | EP0444529A1 Use of dyestuffs for sublimation transfer process |