Patents for C09B 29 - Monoazo dyes prepared by diazotising and coupling (4,940)
10/1993
10/19/1993US5254655 Organosilicon polymers, and dyes, exhibiting nonlinear optical response
10/19/1993US5254160 Brightness, light and color fastness
10/13/1993EP0434769B1 Cover for mirrors of sun visors of motor vehicles
10/12/1993CA1323125C Colored thermoplastic resin composition
10/11/1993CA2093730A1 Fiber reactive monoazo yellow dye
10/06/1993EP0563975A1 Process for producing a monoazodye
10/05/1993US5250392 Process of developing a negative-working radiation-sensitive photoresist containing cyclized rubber polymer and contrast enhancing azo dye
09/1993
09/21/1993US5247071 Preparation of acetalized azo dyes
09/21/1993US5246908 Dyes for use in thermal dye transfer
09/14/1993US5245021 14-crown-4-ether derivatives
09/01/1993EP0557820A2 Azine neutromethine compounds
08/1993
08/31/1993US5241058 Azo dye salts useful as masking couplers and preparation thereof
08/25/1993EP0556556A1 Basic azo dyestuffs from coupling components of the hydroxynaphthalene carbonic acid series
08/18/1993EP0555699A2 Aromatic compounds substituted by an urethane group and by an amino group
08/11/1993EP0555179A1 Azo dyestuffs
08/11/1993EP0554904A2 Organosilicon polymers, and dyes, exhibiting nonlinear optical response
08/11/1993EP0554695A1 Monoazo dyes and mixtures containing them
08/10/1993US5235047 Bathochromic azo dyes derived from 2-aminothiophenes and 2-aminothiazoles
08/05/1993WO1993015596A2 Functionalized merocyanine dyes and polymers incorporating such dyes
08/05/1993CA2128218A1 Functionalized merocyanine dyes and polymers incorporating such dyes
08/04/1993EP0553965A1 An azo pyrazolone compound with characteristic X-ray diffraction pattern
08/04/1993EP0553858A1 Monoazo compound and dense solution thereof
07/1993
07/21/1993EP0551903A1 Water-insoluble monoazodye and dyeing method employing it
07/08/1993WO1993013458A1 Photographic elements with reduced print-through
06/1993
06/24/1993WO1993012428A1 Ion-sensitive dyes
06/16/1993EP0546366A1 Monoazo dyes and mixtures containing them
06/15/1993US5219719 Silver halide color photographic light-sensitive material with colored magenta coupler
06/09/1993EP0545420A2 Imidazole azo dyes and thermal transfer dye donating materials containing them
06/08/1993US5218095 Disperse dye for dyeing synthetic hydrophobic textiles
06/02/1993EP0544153A1 Textile application of Thiophene azo dyes with a coupling component of the diaminopyridine series
06/01/1993US5216140 Monoazo dye and preparation and use thereof
06/01/1993US5216139 Thiopheneazo dye based on a coupling component of the thiazole series
05/1993
05/19/1993CN1020739C Production method of ice-dyeing dye
05/13/1993WO1993009468A1 Radiographic materials with increased uv sensitivity
05/12/1993EP0540729A1 Blocked filter dyes for photographic material and process
04/1993
04/27/1993US5206375 Useful as diazo and/or coupling components; dye intermediates
04/27/1993US5206110 Negative-working radiation-sensitive mixtures containing cyclized rubber polymer and contrast enhancing azo dye
04/20/1993US5203875 Dyeing composition for keratinous fibers, containing oxidation dye precursors and hydroxybenzofurane used as couplers, and dyeing process using these compositions
04/07/1993EP0535424A1 Blue dye mixtures with a high brilliancy
03/1993
03/31/1993EP0534587A2 Sublimation transfer recording system
03/31/1993EP0534314A2 Process for the preparation of nitrobenzophenones and also the colour-fast modification of a benzophenoneazopyridone dye
03/31/1993EP0534296A1 Azo dyes with a quinoline-type coupling component
03/28/1993CA2071661A1 Magenta dyestuff for sublimation transfer recording
03/24/1993EP0533060A1 Mixture of dyes for black dye donor for thermal color proofing
03/23/1993US5196521 Azo dyes prepared using 2-alkylamino-3-cyano-4,6-diaminopyridines as coupling components
03/23/1993US5196519 Reducible compounds which provide aniline dyes, and analytical compositions, elements and methods using same
03/23/1993US5196518 Dizonium slat coupled with hydroxy compound
03/17/1993EP0532006A1 Mixture of dyes for black dye donor for thermal color proofing
03/16/1993US5194598 Azo dyestuffs in which the coupling component contains an N,N-bis(alkoxy carbonylalkyl) substituent
03/16/1993US5194389 Naphthol derivatives, processes for their production and their use
03/09/1993CA1314257C Method for hydrotreating used oils
02/1993
02/18/1993WO1993003100A1 Colorimetric determination of magnesium ions in fluids
02/17/1993EP0527704A2 Dyestuffs, process for their preparation and the use thereof
02/03/1993EP0526170A2 Dyestuff for heat-sensitive transfer record and transfer sheet containing same
02/03/1993EP0524941A1 Monoazo pigment compositions.
02/02/1993US5183881 Chemical intermediate for metallized dyes
02/01/1993CA2074745A1 Dyestuff for heat sensitive transfer record and transfer sheet containing same
01/1993
01/27/1993EP0524401A1 Thiazolazo dyestuffs with a coupling component of the diphenylamine series
01/26/1993US5182372 Marking mineral oils, gasoline, fuel oil
01/12/1993US5179207 Substituted 2-amino-5-maleimido thiophenes and substituted 2-amino-maleimido thiazoles
01/07/1993EP0521711A1 Silver halide photographic light-sensitive material
01/07/1993EP0521664A1 Silver halide photographic light sensitive material
01/07/1993DE4220731A1 New 4-(2-acylamido -4-di:alkylamino:phenyl:azo) 3-nitrophenyl alkyl sulphone cpds. - used as red dyestuff in thermal transfer printing esp. by diffusion
12/1992
12/29/1992US5175265 Azo dyes with a diazo component of the 4-amino-7-nitrobenzisothiazole series and a coupling compound from the aminopyrazole or hydroxypyridone series
12/29/1992US5174792 Dyeing, printing hydrophobic fibers
12/23/1992EP0519270A2 Process for the preparation of acetalised azo dyestuffs
12/23/1992EP0518909A1 Water-insoluble azo dyes, their manufacture and use.
12/22/1992US5173086 Concentrated aqueous solutions of 2-phenylbenzothiazoleazo dyes with mixed cations
12/17/1992DE4218688A1 New benzisothiazole azo cpds. - used as dyestuffs for e.g. polyester fibres, polymer pigments, thermal transfer printing and inks
12/16/1992EP0518133A1 Monoazodye
12/09/1992EP0517513A2 Production of pigments
12/08/1992US5169748 UV spectral sensitization
12/08/1992US5169404 Vaporization from surface of carrier to substrates
12/02/1992EP0516226A1 Novel 14-crown-4-ether derivatives
12/02/1992EP0515973A1 Monoazodyes with 2,6-diaminopyridines as coupling components
11/1992
11/26/1992WO1992021064A1 Blocked filter dyes for photographic material and process
11/24/1992US5166124 Mixture of yellow and magenta dyes to form a red hue for color filter array element
11/24/1992CA1310634C Monoazo pigments, preparation and use thereof
11/19/1992EP0513558A1 Tryptanthrinderivates
11/11/1992EP0512548A1 Thermal transfer sheet
11/10/1992US5162045 Transferring dyes for thermal printing
11/05/1992DE4213155A1 Verbindungen mit nichtlinearen optischen eigenschaften Compounds with nonlinear optical properties
11/04/1992EP0511626A1 Mixture of yellow and magenta dyes to form a red hue for color filter array element
11/03/1992US5160495 2-cyano-4,6-dimitro-phenyl monoazo dyestuffs
10/1992
10/29/1992DE4213395A1 New isothiazolo:pyrazine azo dyestuff cpds. - are used as disperse dyestuff for hydrophobic substrate, esp. polyester textile
10/27/1992US5158928 Diffusion transfer
10/21/1992EP0509818A1 Silent markers for petroleum, method of tagging, and method of detection
10/20/1992US5156653 Silent markers for petroleum, method of tagging, and method of detection
10/15/1992WO1992017550A1 Biodegradable azo dyes
10/14/1992CN1018641B Pron. of dye containing thiophene compounds
09/1992
09/30/1992EP0506549A1 Dyeing composition for keratinous fibers containing oxidation dye precursors and hydroxybenzofurans as couplers and dyeing process making use of such a composition
09/29/1992US5151506 Phenoneazo dyes
09/29/1992US5151505 Amine salts of azo pigments based on pyrazolone derivatives
09/29/1992CA2064411A1 Tinctorial composition for keratinic fibers containing oxydation color precursors and hydroxybenzene furan used as couplers and coloring process using such composition
09/24/1992DE4208535A1 New sulpho-heterocyclyl benzene azo di:hydro-thiadiazine di:one dyestuff cpds. - used for dyeing textile, leather or paper or in ink
09/16/1992EP0502893A1 Azo compounds and their use as dyes, 1-sulpho-6-carboxyl-amino naphthaline, its use as a diazo component and process for the production of these compounds
09/16/1992CN1064555A Process for directly linking 3-anilino-pyrazolone and sulfoether
09/08/1992US5145952 Blue, textiles
09/03/1992WO1992014791A1 Azo dyes having a diazo component from the aminobenzophenone series, as well as bisulphonated pyridone compounds
09/02/1992EP0501238A1 Process for dyeing of polyester and textile materials containing polyester
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