| Patents for C09B 29 - Monoazo dyes prepared by diazotising and coupling (4,940) |
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| 09/03/1991 | US5045179 Production of secondary raffinates for lubricants, treatment of hazardous waste |
| 08/28/1991 | EP0443984A1 Phthalimidylazo dyestuffs |
| 08/21/1991 | EP0442846A2 Disazo compounds with long-chain alkylester- or alkylamide moieties |
| 08/21/1991 | EP0442477A1 Disperse dye mixture |
| 08/20/1991 | US5041413 Azo and pyrazolone dyes; accuracy |
| 08/20/1991 | US5041411 To approximate hue match |
| 08/14/1991 | EP0441208A1 Use of azo-dyes for thermal transfer printing |
| 08/14/1991 | EP0441166A2 Use of specific disperse dyes in the preparation of finished, thermomigration-resisant dyeings |
| 08/14/1991 | DE4003887A1 Orange-dyed polyester fabrics with good wash fastness - are dyed with specified azo dyes followed by application of fabric finish |
| 08/13/1991 | US5039511 Amyloidosis and alzheimer's disease diagnostic assay and reagents therefor |
| 08/13/1991 | US5038415 Bath stability; level dyeing |
| 08/07/1991 | EP0440072A1 Process for dyeing of blended fabrics of polyesters and natural fibre materials |
| 08/06/1991 | US5037968 Ion Selective Membranes Of Ion Selective Electrodes; Color Indicators |
| 08/06/1991 | US5037966 Azo dyes containing a 3-aminobenzothienoisothiazole diazo component |
| 08/06/1991 | US5037798 From substrate to a plastic coated paper by diffusion with the aid of thermal printing head |
| 08/01/1991 | DE4002482A1 Dyeing or printing polyester natural fibre mixed fabric - with alkoxy-nitro-benzene-azo-alkyl-cyano-hydroxy-methyl pyridone disperse dyestuff to reduce staining |
| 07/31/1991 | EP0439057A1 Monoazo dyes, their preparation and use |
| 07/31/1991 | EP0439054A1 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. |
| 07/24/1991 | EP0437800A1 Derivatives and analogues of monoethylglycinexylidide and their production and use |
| 07/17/1991 | EP0437105A1 Intermediates and colorants having primary hydroxyl enriched poly(oxyalkylene) moieties and their preparation |
| 07/03/1991 | EP0434769A1 Cover for mirrors of sun visors of motor vehicles |
| 07/02/1991 | US5028701 Monazo compounds containing a 1-phenyl-2-pyrazoline coupling component |
| 06/27/1991 | DE3942581A1 New 2-amino-thiazole derivs. |
| 06/26/1991 | EP0434611A2 Azo dyestuffs, their preparation and their use |
| 06/26/1991 | EP0433693A1 Water-insoluble monoazo dyes and mixture thereof |
| 06/25/1991 | US5026830 Process for the preparation of azo dyes by carrying out coupling in the presence of an alkali metal chloride and ammonium chloride |
| 06/25/1991 | US5026505 Pleochroic dyes with trans=4=substituted cyclohexyl groups; improved display contrast stability |
| 06/23/1991 | CA2032228A1 Derivatives and analogs of monoethylglycinexylidide and their production and use |
| 06/18/1991 | US5024698 Monoazo pigment compositions |
| 06/13/1991 | WO1991008265A1 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 |
| 06/12/1991 | EP0431389A2 Azo dyes and process for the manufacture of [5-amino-2-(2-hydroxyethylamino)phenyl](2-hydroxyethyl)sulfone |
| 06/11/1991 | US5023274 Fibre-reactive formazan dyes containing β-halogenethyl or vinylsulfonyl-alkanoylamino fiber-reactive groups |
| 06/06/1991 | DE3939909A1 Azoverbindungen und ihre verwendung als farbstoffe, 1-sulfo-6-carboxy-2-amino-naphthalin, dessen verwendung als vorprodukt der azoverbindungen und verfahren zur herstellung dieser verbindungen Azo compounds and their use as dyes, 1-sulfo-6-carboxy-2-amino-naphthalene, its use as a precursor of azo compounds and methods for preparing these compounds |
| 06/04/1991 | US5021334 Light-sensitive element for the diffusion transfer process |
| 06/04/1991 | US5021329 Silver halide photographic material containing a dye precursor residue |
| 05/29/1991 | EP0428930A1 Thiazolazo dye-stuffs |
| 05/07/1991 | US5013826 Azo dyes containing 5-cyclohexylcarbonyl-thiophene diazo components and 1,2,3,4-tetrahydroquinoline coupling components |
| 04/24/1991 | EP0423563A1 Azodyestuffs |
| 04/16/1991 | US5008099 Radioactive iodine-labeled amyloid binding azo compounds |
| 04/11/1991 | DE4031046A1 Thiophene azo julolidine or tetra:hydro-pyrido:benzoxazine dyestuffs - used for dyeing and printing esp. of polyamide textiles |
| 04/10/1991 | EP0421927A2 Preparation process of mono- and polyazo-dyes |
| 04/04/1991 | WO1991004488A1 Method and means for detecting polyhydroxyl compounds |
| 04/03/1991 | EP0419976A1 Oil-soluble azo dyes derived from aniline |
| 03/26/1991 | US5003051 Process for the preparation of metallizable monoazo dyes in the presence of ketones |
| 03/19/1991 | US5001229 Water soluble basic dyestuffs |
| 03/12/1991 | US4999026 Transferring dyes for thermal printing: tri-cyano-vinyl aniline dyes |
| 03/07/1991 | WO1991002772A1 Method of obtaining dispersed monoazodyes |
| 03/05/1991 | US4997921 Colorfast, heat resistant |
| 03/05/1991 | US4997920 Dyeing polyolefins |
| 02/26/1991 | US4995885 Concentrated aqueous dye solutions for dyeing paper |
| 02/21/1991 | DE4025443A1 Julolidine cpds. prodn. from di:hydro-quinoline cpds. - by conversion to juloline cpd., elimination of anion and hydrogenation and use in dyestuff prodn. |
| 02/20/1991 | EP0413229A1 Phenonazo compounds and process for the thermal transfer of these dyes |
| 02/19/1991 | US4994564 Dyeing synthetic fibers in shades of red, yellow |
| 02/19/1991 | US4994563 Dyeing, printing cellulose, silk, wool, synthetic polyamides; colorfastness |
| 02/19/1991 | US4994561 Process for the preparation of metallizable azo dyes carrying out coupling in an inert gas atmosphere in the presence of an ammonium salt |
| 02/19/1991 | US4994338 Electrophotographic photosensitive layer containing azo pigment with coupler residue having phenolic hydroxyl group |
| 02/12/1991 | US4992495 Process for coloring high-molecular weight organic material using amine salts of azo pigments based on pyrazolone derivatives |
| 02/12/1991 | US4991919 Optical head apparatus including concentric, periodic grating in a waveguide |
| 01/29/1991 | WO1991002254A1 A method and a system for quantitatively monitoring a chemical component dissolved in a liquid medium |
| 01/29/1991 | US4988752 Monoazo dyes for coloring polystyrene and styrene copolymers, methacrylates and polycarbonates, extrusion, calendering, pres sing or injection molding |
| 01/29/1991 | CA2064037A1 Method and a system for quantitatively monitoring a chemical component dissolved in a liquid medium |
| 01/09/1991 | EP0406812A2 Process for the preparation of NiNi-dialkyl-1,8-naphthalene diamine |
| 01/09/1991 | EP0406629A2 Method of producing azo dyes |
| 01/03/1991 | DE3920744A1 Sharp contour discharge printing of synthetic textiles - using alkali paste and cyan:azo dyes |
| 01/01/1991 | US4981837 Heat-sensitive transfer material |
| 01/01/1991 | US4981612 Optical element having non-linear optical properties |
| 12/27/1990 | WO1990015850A1 Azophenyl compounds |
| 12/20/1990 | DE4019168A1 New di:hydro-methanobenzocyclooctaquinoline cpds. and azo dyestuff cpd - their prepn. and use as azoic coupler and for dyeing esp. wool and polyamide |
| 12/20/1990 | DE4018666A1 New di:methyl spiro-cyclohexane-quinoline cpds. and azo dyestuff cpds. - their prepn. and use as azoic coupler and for dyeing esp. wool and polyamide |
| 12/18/1990 | CA1277979C Amine salts of azo compounds |
| 12/05/1990 | EP0400451A1 Benzisothiazolazo dyes with a coupling component of thiazole or pyridine series |
| 12/04/1990 | US4975410 Thermally-transferred color filter array element and process for preparing |
| 11/29/1990 | DE3917258A1 New isothiazole or thiadiazole azo thiazole dyestuff cpds. |
| 11/28/1990 | EP0399473A1 Mixture of yellow and cyan dyes to form a green hue for color filter array element |
| 11/26/1990 | CA2016831A1 Mixture of yellow and cyan dyes to form a green hue for color filter array element |
| 11/08/1990 | DE3914378A1 Dyeing paper with basic azo dyestuff with good affinity and fastness - using phenyl oxadiazolyl benzene azo hydroxy-pyridone cpd. with amino-alkyl substit. |
| 11/06/1990 | US4968657 Thermal transfer printing |
| 10/31/1990 | EP0394943A2 Silver halide color photographic material |
| 10/23/1990 | US4965346 Dyeing polyesters |
| 10/23/1990 | US4965345 Disazo dyes; coloring polymeric material |
| 10/10/1990 | EP0391121A1 Monoazo dyes, their preparation and use |
| 10/09/1990 | US4962040 For colorimetric quantitative analysis |
| 10/03/1990 | EP0390027A1 Azo-dyes of which the diazo- and coupling components are from the thiazole series |
| 10/03/1990 | EP0390024A1 Azodyes with a diazo component of the aminobenzoisothiazole series |
| 10/02/1990 | US4960874 Dyeing cellulose esters and polyesters |
| 10/02/1990 | US4960873 3-pyridylisothiazoleazo compounds useful as disperse dyes |
| 10/02/1990 | US4960435 Heat treating in aqueous solvent or anionic or nonionic surfactant; colorfast |
| 09/26/1990 | CN1045592A Production method of ice-dyeing dye |
| 09/25/1990 | CA1274527A1 5-higher alkyl substituted-2h-benzotriazoles and stabilized compositions |
| 09/19/1990 | EP0388353A1 Azodyes, their preparation and their use |
| 09/11/1990 | US4956456 Betaine-type cyan monoazo dyes for dying and printing fibrous materials |
| 09/05/1990 | EP0385939A1 Process for the preparation of metallisable azodyes |
| 09/05/1990 | EP0385938A1 Heteroaromatic azo dyes |
| 09/05/1990 | EP0385330A2 Mixtures of dyestuffs comprising azo compounds on the basis of phenylox diazolyl aniline |
| 09/05/1990 | EP0385010A1 N-alkyl-N-(Aminophenylsulfonyl)-aminoalkylphosphonic acids and salts |
| 09/04/1990 | US4954563 Monoazo dyes containing sulfoindole coupling components |
| 08/29/1990 | EP0384225A1 Use of dyestuffs in the sublimation-transfer process |
| 08/22/1990 | EP0383021A2 Monoazo dyes, their preparation and their use |