| Patents for C09B 57 - Other synthetic dyes of known constitution (5,224) |
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| 08/06/1997 | EP0787730A1 Polymerisable diketopyrrolopyrroles and polymers prepared with same |
| 08/05/1997 | US5654122 N-aminopyridone dyes |
| 07/31/1997 | CA2196139A1 Polymerizable diketopyrrolopyrroles and polymers prepared therewith |
| 07/30/1997 | EP0786497A1 New dyes for use in diverse applications |
| 07/30/1997 | EP0786244A1 Oxidation hair-dye comprising 3,4,5 triaminopyrazole derivatives, and novel 3,4,5 triaminopyrazole derivatives |
| 07/29/1997 | CA1339140C Fluorescent dyes |
| 07/22/1997 | US5650520 Crystal modification of a diketopyrrolopyrrole pigment |
| 07/22/1997 | US5650456 Coumarin derivatives, a method of preparing them and their use as intermediates |
| 07/09/1997 | CN1153780A Benzimidazole-isoindolenine dyestuffs |
| 07/08/1997 | US5646299 Two new crystal modifications of a diketopyrrolopyrrole pigment |
| 07/08/1997 | US5646297 Reacting diarylsulfide and 4-equivalent-5-pyrazolone in presence of 1,8-diazabicyclo-(5,4,0)-undecen-7-ene in solvent; sulfiding |
| 07/08/1997 | US5646295 Diazapentalene derivatives as a specific reagent for thiol compounds |
| 07/08/1997 | US5646290 Thiazolylisoindolenine dyestuffs |
| 07/02/1997 | EP0781816A1 New dyes for use in diverse applications |
| 07/02/1997 | EP0697027B1 Tetraaroxyperylene-3,4,9,10-tetracarboxylic acid polyimides |
| 06/26/1997 | DE19548411A1 Preparation of poly:cyclic N=heterocyclic compounds of perinone type with high productivity and selectivity |
| 06/25/1997 | EP0780444A2 Process to manufacture polycyclic compounds |
| 06/25/1997 | EP0780443A2 Pyrrolo(2,1-a)isoquinoline dyes |
| 06/11/1997 | EP0778318A2 Benzimidazol-isoindolenine dyes |
| 06/11/1997 | EP0777704A1 Naphtholactam dyes |
| 06/11/1997 | CN1151690A Dental impression material with cure-indicating dye |
| 05/28/1997 | EP0700420A4 Thermostable and lightfast dichroic light polarizers |
| 05/28/1997 | EP0582579B1 N-aminopyridone dyes |
| 05/28/1997 | DE19543988A1 Oxidative hair dye composition |
| 05/21/1997 | EP0774122A1 Merocyanine dye protein stains |
| 05/06/1997 | US5627014 Benzpyrylium squarylium and croconylium dyes, and processes for their preparation and use |
| 05/06/1997 | US5626633 Bulk dyeing of plastics |
| 04/30/1997 | CN1148585A Soluble chromophore containing solubilizing group easy to be removed |
| 04/29/1997 | US5625080 Dye intermediates |
| 04/29/1997 | US5625062 Method of making soluble squaraine dyes |
| 04/29/1997 | US5624798 Detection method of nucleic acid by use of fluorescent pyrylium stain in intercalation into nucleic acids |
| 04/23/1997 | EP0769532A1 Naphtholactamimide fluorescent dyes |
| 04/23/1997 | EP0768860A2 Dental impression material with cure-indicating dye |
| 04/15/1997 | US5621027 Dyestuffs for bulk dyeing plastics |
| 04/13/1997 | CA2187593A1 Naphthalenelactamimide fluorescence dyes |
| 04/09/1997 | EP0767220A1 Pyridonmethidazo dyes |
| 04/09/1997 | EP0766842A1 Phthalimide blocked post-processing stabilizers for photothermography |
| 04/02/1997 | CN1146469A Pigment compositions of diketopyrrolopyrroles |
| 04/01/1997 | US5616790 Fluorescent chelate compound as metal ion detector |
| 04/01/1997 | US5616725 Pyrrolo[3,4-C]pyrrole synthesis |
| 04/01/1997 | US5616710 Diffusion transfer or sublimation of dyes from a carrier to a plastic-coated paper with the aid of an energy source; textiles; blue; purple; brightness; colorfastness |
| 04/01/1997 | US5616502 Non-specific protein staining using merocyanine dyes |
| 03/26/1997 | EP0764628A1 Diesters of pyrocarbonic acid, their preparation and their use |
| 03/26/1997 | EP0764291A1 Electrophotographic toner |
| 03/19/1997 | EP0763774A1 Process for preparation of 2-equivalent 4-arylthio-5-pyrazolone magenta couplers |
| 03/19/1997 | EP0763538A2 Process for dyeing a high molecular material with polycyclic compounds |
| 03/12/1997 | EP0761772A1 Soluble chromophors containing solubility-enhancing groups which separate easily therefrom |
| 03/11/1997 | US5609650 Dyeing of keratin fibres with indolines using metal salts as catalysts |
| 03/06/1997 | WO1997008245A1 Anti-corrosive pigments and compositions formulated with such pigments |
| 03/05/1997 | EP0760387A1 Anti-corrosive pigments and compositions formulated with such pigments |
| 02/26/1997 | EP0759451A2 Polymeric fluorescence markers |
| 02/26/1997 | CN1143665A Photo-cross-linkable liquid crystalline dyes |
| 02/25/1997 | US5606055 Organic white pigment |
| 02/19/1997 | EP0758337A1 Phosphonated polypyridyl compounds and their complexes |
| 02/12/1997 | EP0757707A1 Thiazole methine dyes |
| 02/06/1997 | WO1997004031A1 Dye mixtures |
| 01/29/1997 | EP0755933A1 Blue diketopyrrolopyrrole pigments |
| 01/29/1997 | EP0755391A1 Phenol derivatives, process for producing them and their use, especially in non-linear optics |
| 01/29/1997 | CA2182147A1 Soluble chromophores containing solubilising groups which can be easily removed |
| 01/22/1997 | CN1141052A Triazolopyridine dyes |
| 01/21/1997 | US5596025 Dental impression material with cure-indicating dye |
| 01/15/1997 | CN1140214A Mixtures of optical brighteners based on bisstyryl compounds |
| 01/08/1997 | EP0752494A1 Process for reducing the toxicity of residual dyeing-baths and new cationic dyes |
| 01/08/1997 | EP0752451A1 The use of novel and known 4,5-dihydro-1H-1,2,3-triazolium cationic compounds as dyestuffs and novel 4,5-dihydro-1H-1,2,3-triazolium cationic compounds |
| 01/07/1997 | US5591865 Inks, coatings, coloring plastics, yellowish-red, colorfast |
| 01/03/1997 | WO1996034916A3 Ink composition |
| 12/23/1996 | CA2179582A1 Blue diketopyrrolopyrrole pigments |
| 12/18/1996 | EP0748852A2 Photocrosslinkable liquid crystalline dyestuffs |
| 12/18/1996 | EP0748851A2 Pigment compositions based on diketopyrrolopyrroles |
| 12/18/1996 | EP0748465A1 Dihydroperimidine squarylium dyes as antihalation and acutance materials for photographic and photothermographic articles |
| 12/18/1996 | EP0748411A1 Process for colouring synthetic textile materials |
| 12/18/1996 | EP0616621B1 Method for tagging thermoplastic materials with near infrared fluorophores |
| 12/18/1996 | CN1138344A Pyridone dyes |
| 12/18/1996 | CN1138041A Coumarin derivatives, method of preparing them and their use as intermediates |
| 12/18/1996 | CN1138036A 1,8-naphthalimide derviatives, processes for their manufacture and use as intermediates |
| 12/16/1996 | CA2179106A1 Pigment compositions of diketopyrrolopyrroles |
| 12/11/1996 | EP0747448A2 Rigidized monomethine cyanine dyes |
| 12/11/1996 | EP0503083B1 Heat transfer sheet and use of a dye in heat transfer recording |
| 12/11/1996 | CN1137548A Cyanation of double bond systems |
| 12/08/1996 | CA2178304A1 Rigidized monomethine cyanine dyes |
| 12/04/1996 | EP0745107A1 Triazolopyridine dyes |
| 12/03/1996 | US5580980 N-aminopyridone dyes |
| 11/21/1996 | WO1996036882A1 Merocyanine dye protein stains |
| 11/20/1996 | EP0742811A1 Method for preparing pyridine dyes |
| 11/13/1996 | EP0742217A1 Isoindoline pigments based on aminoquinoxalindiones |
| 11/12/1996 | US5573909 Fluorescent labeling using microparticles with controllable stokes shift |
| 11/07/1996 | WO1996035142A1 Stable antihalation materials for photographic and photothermographic elements |
| 11/07/1996 | WO1996034916A2 Ink composition |
| 11/07/1996 | WO1996034591A1 Diaminopyrazole-containing compositions for colouring keratin fibres, colouring process, novel diaminopyrazoles and method for their preparation |
| 11/06/1996 | EP0740931A1 Compositions for dyeing keratinic fibers containing diaminopyrazoles, process for dyeing, diaminopyrazoles and process for their preparation |
| 10/31/1996 | WO1996033692A1 Hair colorants based on perimidine derivatives |
| 10/31/1996 | DE19514996A1 Haarfärbemittel auf Basis von Perimidin-Derivaten Hair dyes based on perimidine derivatives |
| 10/22/1996 | CA1338668C Pigments and use thereof |
| 10/15/1996 | US5565578 Process for the preparation of diaryldiketopyrrolopyrrole pigments |
| 10/15/1996 | US5565572 Intermediates for the preparation of pyrazoloazole photographic couplers, processes of making and using them |
| 10/15/1996 | US5565551 Non-azo naphthalimide dyes and uses for same |
| 10/09/1996 | EP0736069A1 Pyridone dyes |
| 10/08/1996 | CA1338638C Di[bis-(indolyl)ethylenyl]tetrahalophthalides |
| 10/01/1996 | US5561232 Carbamate group-containing soluble chromophores; solid state fluorescence in the ultraviolet range |
| 09/26/1996 | DE19609956A1 Optical brightener mixt. for (semi) synthetic or natural polymers |