| Patents for C09B 3 - Dyes with anthracene nucleus condensed with one or more carbocyclic rings (461) |
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| 03/19/1991 | US5001243 Substituted naphthacene-5, 12-diones |
| 02/12/1991 | US4992569 Dicyanobenzanthrone compounds |
| 01/29/1991 | CA1279562C Use of polymeric mordants to increase the intensity of rigid fluorescent dyes |
| 01/22/1991 | US4986852 Pigments and use thereof |
| 10/10/1990 | EP0391268A1 Manufacture of dyestuffs of the dibenzopyrenequinone series |
| 10/04/1990 | DE3910606A1 Process for preparing dyes of the dibenzopyrenequinone series |
| 10/04/1990 | DE3910596A1 Process for preparing dyes of the dibenzopyrenequinone series |
| 09/27/1990 | DE3908312A1 Novel fluorescent perylene and diketopyrrolopyrrole colour pigments |
| 08/21/1990 | CA1273023A1 Hydrolyzable fluorescent substrates for phosphatases and analytical use thereof |
| 08/08/1990 | EP0380642A1 Liquid crystal display devices and liquid crystal medium to be used therein |
| 07/04/1990 | EP0376158A1 Mixed-crystal pigments of the anthanthrone series, methods for their preparation and their use |
| 05/22/1990 | US4927927 Fluorescent dyes and biological and analytical uses thereof |
| 03/28/1990 | EP0360184A2 Process for the manufacture of pigment preparations of the anthanthrone range |
| 02/22/1990 | WO1990001526A1 Liquid crystal display devices and liquid crystal medium to be used therein |
| 02/22/1990 | WO1990001480A1 Optical memory |
| 02/01/1990 | DE3901988A1 Erasable optical fluorescence and absorption data medium having good long-term stability |
| 01/17/1990 | CN1038830A Technological process and devices for transforming imflammable pollutants or wastes into clean energy sources and useful products |
| 12/13/1989 | EP0346280A2 Dicyanobenzanthrone compounds |
| 11/29/1989 | EP0344110A2 Substituted naphthacenes-5,12-diones and their use |
| 11/29/1989 | EP0344109A2 Substituted naphthacene-5,12-diones and their use |
| 11/21/1989 | US4882095 Preparation of alkoxy(iso)violanthrenediones |
| 09/12/1989 | US4866113 Compounds useful as pigments containing one or more 2,2,6,6-tetraalkylpiperidine groups |
| 07/25/1989 | US4851157 Process for the preparation of vat dyes from brominated dibenzanthrone and 1-aminoanthraquinone |
| 06/28/1989 | EP0321919A2 Pigments and their use |
| 06/21/1989 | EP0261165B1 Liquid crystal displays and fluorescent dyes for use therein |
| 06/13/1989 | US4838943 Compounds useful as pigments containing one or more 2,2,6,6-tetraalkylpiperidine groups |
| 06/13/1989 | US4838659 Liquid crystal displays and fluorescent dyes for use therein |
| 05/31/1989 | EP0318022A2 Process for the manufacture of N,N'-dimethyl-perylene-3,4,9,10-tetracarboxylic-acid diimide in a highly covering pigmentary form |
| 04/25/1989 | US4824608 Alkylating 16,17-dihydroxyviolanthrene-5,10-dione in tertiary aliphatic or cycloaliphatic amine as solvent |
| 03/29/1989 | EP0308842A2 Process for the preparation of alcoxy (iso)-violanthrenedione |
| 03/14/1989 | US4812409 Hydrolyzable fluorescent substrates and analytical determinations using same |
| 03/14/1989 | US4812393 Analytical determination of microorganisms |
| 02/16/1989 | DE3726458A1 Optical recording medium containing violanthrene compounds, and novel violanthrene compounds |
| 02/07/1989 | US4803161 Biological and analytical uses of phenalenone and benzphenalenone compounds |
| 02/07/1989 | US4803160 Use of polymeric mordants to increase the intensity of rigid fluorescent dyes |
| 02/07/1989 | US4803157 Dyes blocked with phosphono or thioxophosphono groups |
| 01/31/1989 | US4801406 Dyes for polyesters |
| 11/15/1988 | US4784805 Dimerization or cyclization in presence of alkali metal hydroxide and aliphatic alcohol |
| 05/26/1988 | DE3638763A1 Pigments containing piperidyl groups |
| 04/27/1988 | EP0264543A2 Perylene derivatives |
| 04/26/1988 | US4740604 Hydrazone dye intermediates |
| 03/31/1988 | DE3632039A1 Disazo pigments |
| 03/30/1988 | EP0261165A1 Liquid crystal displays and fluorescent dyes for use therein. |
| 03/17/1988 | DE3630717A1 Azo pigment dyes |
| 03/16/1988 | EP0259849A2 Process for the preparation of C.I. vat blue 16 |
| 01/05/1988 | CA1231095A1 Process for the production of benzanthrone |
| 12/10/1987 | DE3612148A1 Disazo pigments |
| 12/03/1987 | DE3618216A1 Azo pigments |
| 12/02/1987 | EP0247970A1 Benzanthrone lactones, process for their preparation and their use |
| 11/19/1987 | EP0246193A2 Process for the preparation of anthraquinoid intermediate products and vat dyes |
| 11/10/1987 | US4705572 Process for the preparation of pigments of the anthanthrone series |
| 10/20/1987 | US4701281 Process for the preparation of anthraquinone imides |
| 10/14/1987 | EP0241419A2 Pigments containing piperidyl groups |
| 09/24/1987 | WO1987005617A1 Liquid crystal displays and fluorescent dyes for use therein |
| 09/23/1987 | EP0238443A2 Dicyanobenzanthrone compounds |
| 09/08/1987 | US4692278 Process for the preparation of 1,4-diaminoanthraquinones |
| 08/12/1987 | EP0232130A2 Biological and analytical uses of phenalenone and benzphenalenone compounds |
| 08/12/1987 | EP0232129A2 Hydrolyzable fluorescent substrates for phosphatases and analytical use thereof |
| 08/05/1987 | EP0231127A2 Composition, element and method using polymeric mordants to increase the intensity of rigid fluorescent dyes |
| 08/05/1987 | EP0231126A2 Fluorescent dyes and biological and analytical uses thereof |
| 08/05/1987 | EP0231125A2 Hydrolyzable fluorescent substrates and analytical determinations using same |
| 07/02/1987 | DE3643590A1 Process for the preparation of vat dyes from brominated dibenzanthrone and 1-aminoanthraquinone |
| 04/21/1987 | US4659831 Chemical intermediates for vat dyes |
| 03/11/1987 | EP0213281A2 Process for preparing pigments of the anthanthrone series |
| 10/29/1986 | EP0199670A2 Process for the preparation of anthraquinone imide compounds |
| 10/22/1986 | EP0198795A2 Process for the preparation of 1,4-diaminoanthraquinones |
| 10/21/1986 | US4618694 Concentrating light in polymethyl methacrylate; photostable |
| 06/25/1986 | EP0185569A1 Process for the preparation of anthraquinone vat dyes, dyes obtained by this process and textile products dyed with these dyes |
| 05/13/1986 | US4588517 Liquid crystal composition |
| 12/17/1985 | US4559176 Process for the production of benzanthrone |
| 11/26/1985 | US4555355 Diester perylene dyes |
| 10/15/1985 | US4547575 Vat dyes obtainable by bromination of dibenzanthrone and reaction with 1-aminoanthraquinone |
| 10/09/1985 | EP0156997A1 Process for the concentration of light in a plane surface |
| 04/10/1985 | EP0136981A2 Process for the preparation of anthraquinone imide compounds |
| 03/20/1985 | EP0134753A1 Process for the preparation of benzanthrone |
| 02/26/1985 | US4501906 Monoalkali metal salts of perylene-3,4,9,10-tetracarboxylic acid monoanhydride and process for their manufacturing |
| 02/13/1985 | EP0132757A1 Process for the preparation of oxamides |
| 12/04/1984 | US4486587 Lighfastness, theromostability |
| 09/26/1984 | EP0119956A2 Process for the preparation of vat dyes |
| 07/31/1984 | US4463174 Process for producing dibenzanthrone containing vat dyes |
| 07/17/1984 | US4460410 From acid, surfactant |
| 07/10/1984 | US4459218 Composition for liquid crystal color display |
| 07/03/1984 | CA1170254A1 Dyes containing imidazolylmethylene groups |
| 06/12/1984 | US4454057 Containing perylene dye |
| 05/29/1984 | US4451398 Dyes containing imidazolymethylene groups |
| 01/18/1984 | EP0098522A2 Liquid crystal composition |
| 11/08/1983 | US4414156 Process for producing 2-methoxybenzanthrones |
| 10/05/1983 | EP0090244A2 Process for the preparation of triazine vat dyestuffs |
| 09/20/1983 | US4405785 Vat dyestuff prepared from crude anthraquinone mixtures |
| 09/07/1983 | EP0088048A1 Vat dyes obtainable by bromination of dibenzanthrone and conversion with 1-aminoanthraquinone |
| 06/29/1983 | EP0082522A1 Process for the preparation of a perylene tetracarboxylic dianhydride pigment and its use |
| 05/10/1983 | US4382800 Free amine-containing polymeric dyes |
| 04/27/1983 | EP0077496A1 Process for utilizing the light of wavelengths in the range from 470 to 600 nm for photo synthesis |
| 04/06/1983 | EP0076235A1 Process for the preparation of vat dyes |
| 03/29/1983 | US4378302 Red perylene dichroic dye containing liquid crystal formulations |
| 03/02/1983 | EP0073007A1 Method for the square dimensional concentration of light, and fluorescent compounds |
| 01/05/1983 | EP0068427A1 Liquid crystal composition |
| 12/28/1982 | US4366079 Sulfonated rubrene and aqueous chemiluminescent compositions containing the same |
| 10/06/1982 | EP0061624A1 Cationic dyes and their use |
| 09/29/1982 | EP0060895A1 Composition for liquid crystal color display |