| Patents for C09B 5 - Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings (1,582) |
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| 01/20/1999 | EP0765154B1 Direct-acting hair colouring agent |
| 01/20/1999 | CN1205705A 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic acids and dianhydrides and diimides of said acids |
| 12/23/1998 | EP0649406B1 Carbazole derivatives and their use in cosmetics, especially for make-up |
| 12/02/1998 | EP0880560A1 N,n'-dimethylperylene-3,4,9,10-tetracarboxylic acid diimide pigments suitable for water-based paints |
| 11/05/1998 | WO1998049164A1 Writable and erasable high-density optical storage media |
| 10/28/1998 | EP0873342A1 1,7-diaroxy- or 1,7-diarylthio-substituted perylene-3,4,9,10-tetracarboxylic acids and their dianhydrides and diimides |
| 10/28/1998 | CN1197472A Fluorescent dye blends |
| 10/28/1998 | CN1197469A Fluorescent dye blends |
| 10/14/1998 | EP0869959A1 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic acids and dianhydrides and diimides of said acids |
| 10/07/1998 | CN1194981A Preparation of perylene-3,4-dicarboxylic acid anhydrides |
| 09/22/1998 | US5811543 Fluorescent carbamate-modified phthalocyanine pigments |
| 09/22/1998 | US5811307 Mixing perylenetetracarboxylic acid diimides with dna solution for precipitation, then purification, solvent extraction and determination of dna concentration by measurement of absorbance or fluorescence |
| 09/16/1998 | EP0864613A2 Pigment composition and process for the manufacture thereof |
| 09/15/1998 | US5808073 Preparation and purification of perylene-3,4-dicarbimides |
| 09/11/1998 | WO1998039333A1 Crown ether-derivatised perylenes |
| 09/10/1998 | DE19709008A1 Perylene tetra:carbimide dyes and fluorescent dyes and pigments forming metal complexes |
| 09/10/1998 | CA2231523A1 Pigment formulations and processes for their preparation |
| 09/09/1998 | EP0862599A1 Fluorescent dye blends |
| 08/20/1998 | DE19702826A1 Bifluorophore Perylenfarbstoffe mit langwellig verschobener Fluoreszenz Bifluorophore perylene dyes with long wavy shifted fluorescence |
| 08/05/1998 | CN1039455C Method for preparing tinted contact lens |
| 07/30/1998 | WO1998032802A1 Soluble chromophores having improved solubilising groups |
| 07/30/1998 | WO1998032799A1 Bifluorophoric perylene colourants |
| 07/30/1998 | CA2275965A1 Soluble chromophores having improved solubilising groups |
| 07/23/1998 | WO1998031678A1 Preparation of perylene-3,4-dicarboxylic anhydrides |
| 07/22/1998 | EP0854144A1 Preparation of perylen-3,4-dicarboxylacid anhydrides |
| 07/22/1998 | EP0853646A1 Fluorescent dye blends |
| 07/21/1998 | US5783710 Benzothioxanthene dyes, their preparation and their use |
| 07/16/1998 | DE19700990A1 Die ausbalancierte Decarboxylierung von aromatischen Polycarbonsäuren - eine einstufige Synthese von Perylen-3,4-dicarbonsäureanhydrid The balanced decarboxylation of aromatic polycarboxylic acids, - a one-step synthesis of perylene-3,4-dicarboxylic anhydride |
| 07/14/1998 | US5780627 Fluorescent dioxazine pigments |
| 06/30/1998 | US5773172 Solvent and binder solubility |
| 06/18/1998 | DE19651712A1 New pyrrolo: or thieno:perylene-imide compounds |
| 06/17/1998 | EP0848041A1 Dye precursor from plants of the medicago genus, its preparation and its use in the manufacture of dyestuffs |
| 06/04/1998 | WO1998023690A1 Method for preparing light-absorbing polymeric compositions |
| 05/19/1998 | US5754337 Increased visibility for traffic signals; blends of yellow perylene dye and a yellow-green dye |
| 05/19/1998 | US5753030 Crystal growth modifiers for perylene pigments |
| 05/12/1998 | US5750758 Pyrocarbonic acid diesters and the preparation and use thereof |
| 04/14/1998 | US5739296 Method and materials for thermostable and lightfast dichroic light polarizers |
| 04/07/1998 | US5736596 Use of thermoplastic electroluminescent materials which are stable for an extended period |
| 04/01/1998 | EP0832937A1 Water-soluble perylene dyes, their preparation and use |
| 03/19/1998 | WO1998011167A1 Anthrapyridone compounds, water-base ink composition, and articles colored therewith |
| 03/04/1998 | EP0826740A1 Symmetrical perylene dimers |
| 03/03/1998 | US5723626 Fluorescent isoindoline pigments |
| 02/19/1998 | WO1998006786A1 Method for the production of n,n'-dialkyl perylene-3,4,9,10-tetracarboxylic acid diimides |
| 02/12/1998 | DE19632204A1 Verfahren zur Herstellung von N,N'-Dialkylperylen-3,4,9,10-tetracarbonsäurediimiden A process for the preparation of N, N'-Dialkylperylen-3,4,9,10-tetracarboxylic diimides |
| 02/08/1998 | CA2201418A1 Symmetrical perylene dimers |
| 01/06/1998 | CA2064881C Perylene compounds containing sulphonic groups, process for preparing them and their use |
| 12/31/1997 | CN1169155A Substituted quaterrylene tetracarboxylic acid diimides |
| 12/17/1997 | CN1168151A Process for producing and purifying perylene-3,4-dicarboxylic acid imides |
| 12/11/1997 | WO1997046533A1 Process for producing perylene-3,4-dicarboxylic acid imides |
| 12/11/1997 | DE19622673A1 Verfahren zur Herstellung von Perylen-3,4-dicarbonsäureimiden Perylene-3,4-dicarbimides process for the preparation of |
| 12/02/1997 | US5693808 Process for the preparation of peryleneimides, novel di-, tri- and tetrachromophoric perylene dyes and their use |
| 11/19/1997 | EP0807668A2 Crystal growth modifiers for perylene pigments |
| 11/12/1997 | EP0806198A2 Dyeing composition |
| 11/05/1997 | EP0804508A1 Process for producing and purifying perylene-3,4-dicarboxylic acid imides |
| 11/05/1997 | EP0804507A1 Substituted quaterrylene tetracarboxylic acid diimides |
| 10/07/1997 | US5674622 Fluorescent dye blends |
| 09/30/1997 | US5672643 Fluorescent dye blends |
| 09/03/1997 | EP0792257A1 Dichroic light polarizers |
| 08/26/1997 | US5660775 Cutting, heating |
| 07/24/1997 | WO1997026301A1 N,n'-dimethylperylene-3,4,9,10-tetracarboxylic acid diimide pigments suitable for water-based paints |
| 07/24/1997 | DE19601752A1 Für Wasserbasislacke geeignetes N,N'-Dimethylperylen-3,4,9,10-tetracarbonsäurediimidpigment For water-based paints suitable N, N'-3,4,9,10-tetracarboxylic-dimethylperylene |
| 07/24/1997 | CA2234111A1 N,n'-dimethylperylene-3,4,9,10-tetracarboxylic acid diimide pigments suitable for aqueous basecoats |
| 07/22/1997 | US5650513 Process for preparing perylene-3,4-dicarboxylic acid derivatives, the derivatives thus prepared and their use |
| 07/17/1997 | WO1997025314A1 Novel dicationic perylene dye and use for precipitation and quantitation of dna |
| 07/08/1997 | US5645965 Xerography, charge generating compounds |
| 06/26/1997 | WO1997022608A1 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic acids and dianhydrides and diimides of said acids |
| 06/26/1997 | WO1997022607A1 1,7-diaroxy- or 1,7-diarylthio-substituted perylene-3,4,9,10-tetracarboxylic acids and their dianhydrides and diimides |
| 06/19/1997 | DE19547210A1 1,7-Disubstituierte Perylen-3,4,9-10-tetracarbonsäuren, deren Dianhydride und Diimide 1,7-disubstituted perylene-3,4,9-10-tetracarboxylic acids and their dianhydrides diimides |
| 06/19/1997 | DE19547209A1 1,7-Diaroxy-oder -arylthiosubstituierte Perylen-3,4,9,10-tetracarbonsäuren, deren Dianhydride und Diimide 1,7-Diaroxy or -arylthiosubstituierte perylene-3,4,9,10-tetracarboxylic acids, their dianhydrides and diimides |
| 05/28/1997 | EP0700420A4 Thermostable and lightfast dichroic light polarizers |
| 04/30/1997 | CN1148585A Soluble chromophore containing solubilizing group easy to be removed |
| 04/03/1997 | WO1997012000A1 Fluorescent dye blends |
| 04/03/1997 | WO1997011999A1 Fluorescent dye blends |
| 04/03/1997 | CA2230941A1 Fluorescent dye blends |
| 04/02/1997 | EP0765154A1 Direct-acting hair colouring agent |
| 03/26/1997 | EP0764628A1 Diesters of pyrocarbonic acid, their preparation and their use |
| 03/12/1997 | EP0761772A1 Soluble chromophors containing solubility-enhancing groups which separate easily therefrom |
| 01/29/1997 | CA2182147A1 Soluble chromophores containing solubilising groups which can be easily removed |
| 11/26/1996 | US5578087 Dyeing compositions for keratinous fibres based on para-phenylene-diamines, meta-phenylenediamine and benzimidazole derivatives, and dyeing process employing them |
| 10/22/1996 | CA1338668C Pigments and use thereof |
| 10/10/1996 | DE19512773A1 Quater:rylene-tetra:carbo-bis:imide(s), including NIR fluorescent dyes |
| 10/01/1996 | US5561232 Carbamate group-containing soluble chromophores; solid state fluorescence in the ultraviolet range |
| 08/06/1996 | US5543436 Carbazole derivatives and their use in cosmetics |
| 07/25/1996 | WO1996022332A1 Substituted quaterrylene tetracarboxylic acid diimides |
| 07/25/1996 | WO1996022331A1 Process for producing and purifying perylene-3,4-dicarboxylic acid imides |
| 07/25/1996 | DE19501737A1 Verfahren zur Herstellung und Reinigung von Perylen-3,4-dicarbonsäureimiden Dicarboximides of perylene-3,4-process for the preparation and purification of |
| 07/10/1996 | CN1126206A Process for the production of dianthraquinone-N,N'-dihydroazine |
| 07/09/1996 | US5534627 Polycyclic vat dyes |
| 05/30/1996 | WO1996016015A1 Dichroic light polarizers |
| 05/15/1996 | EP0711812A1 Method of preparation of perylene imides, novel di-, tri-, and tetrachromophore perylene dyestuffs and their utilization |
| 05/15/1996 | DE4440242A1 Di:, tri: and tetra:chromophore perylene dyes useful as pigment and dye |
| 05/11/1996 | CA2162448A1 Process for the preparation of peryleneimides, novel di-, tri- and tetrachromophoric perylene dyes and their use |
| 04/24/1996 | EP0426717B1 Optical memory |
| 04/16/1996 | US5508137 Perylene amidine imide dyes, a process for preparing them, and their use |
| 03/13/1996 | EP0700420A1 Thermostable and lightfast dichroic light polarizers |
| 02/28/1996 | EP0698649A1 Use of thermoplastically processible long time stable electroluminescent materials |
| 12/27/1995 | EP0688829A1 Process for the production of dianthraquinone-N,N'-dihydroazine |
| 12/21/1995 | WO1995034273A1 Direct-acting hair colouring agent |
| 11/28/1995 | US5470502 Lightfast |
| 11/14/1995 | US5466807 Perylene compounds containing sulfonic acid groups process for preparing them and their use |