| 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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| 01/31/1990 | EP0353031A2 Anthrapyridone compounds and their production process |
| 01/31/1990 | EP0219044B1 Fluoranthene vat dyes and process for their preparation |
| 01/09/1990 | US4892957 Dimerization, vat dye for cellulose fibers |
| 08/17/1989 | DE3902687A1 Boron complexes |
| 08/17/1989 | DE3902686A1 Boron complexes |
| 07/11/1989 | US4846892 Polyvinyl chloride, lightfastness |
| 07/04/1989 | US4845223 Fluorescent aryloxy-substituted perylene-3,4,9,10-tetracarboxylic acid diimides |
| 06/28/1989 | EP0321919A2 Pigments and their use |
| 05/16/1989 | US4831140 Process for the preparation of arylimides of perylene-3,4,9,10-tetracarboxylic acid |
| 04/25/1989 | US4824882 Polarizing film |
| 03/01/1989 | EP0305329A2 Process for the preparation of an n-alkylated bis-pyrazolanthrone compound |
| 02/16/1989 | DE3726458A1 Optical recording medium containing violanthrene compounds, and novel violanthrene compounds |
| 02/15/1989 | EP0302973A1 Easily dispersible pigment composition and dispersing method |
| 01/10/1989 | US4797162 Process for the preparation of perylene-3,4,9,10-tetracarboxylic acid N,N'-d |
| 11/15/1988 | US4784905 Supported thermofusible ink layer comprising a coloring agent, image gradation control agent and carrier in a fine porous resin; hectography |
| 11/15/1988 | US4784805 Dimerization or cyclization in presence of alkali metal hydroxide and aliphatic alcohol |
| 10/26/1988 | EP0288400A1 Substituted isoquinolines |
| 10/25/1988 | US4780531 Dichoric dye for color liquid crystals having halogen substituted in perylene structure |
| 10/11/1988 | US4777266 Reacting diaminoanthraquinonedicarboximide with amine; transamidation with different amine |
| 10/04/1988 | US4775760 Dyes, tones, or color bodies |
| 09/21/1988 | EP0283436A2 Perylene-tetracarboxylic-acid diimides with long-chain residue containing carbonyl groups |
| 09/20/1988 | US4772725 Anthrimidecarbazole compound having thenoylamino groups |
| 09/06/1988 | US4769460 Mix-crystal pigments based on perylenetetracarbimides, process for preparing and their use |
| 08/24/1988 | EP0279774A1 Anthrimide carbazole compound with thenoyl amine groups |
| 08/24/1988 | EP0279437A2 Process for the preparation of a blue anthraquinoic disperse dye |
| 08/18/1988 | DE3713459A1 Lightfast, readily soluble diketopyrrolopyrrole fluorescent dyes |
| 08/18/1988 | DE3703513A1 Water-soluble perylene fluorescent dyes |
| 08/18/1988 | DE3703495A1 New perylene carboximide derivs. - useful as fluorescent dyes |
| 08/09/1988 | US4762569 Diimide compound |
| 06/08/1988 | EP0270306A2 Anthrapyridone compounds, their production process and their use |
| 05/03/1988 | US4742170 Mix-crystal pigments based on perylenetetracarbimides, process for their preparation, and their use |
| 04/27/1988 | EP0265139A2 Impregnation-printed moulded article |
| 03/23/1988 | EP0260648A2 Tetrachloroperylene-3,4,9-10-tetracarboxylic acid diimide pigment and its use |
| 02/16/1988 | US4725690 Perylene-3,4,9,10-tetracarboxylic acid diimide dye |
| 12/08/1987 | CA1230115A1 Substituted anthra¬1,9-cd|pyrazol-6(2h)-ones |
| 11/24/1987 | US4709029 Process for the preparation of perylene-3,4,9,10-tetracarboxylic acid monoanhydride monoimides |
| 11/19/1987 | EP0246193A2 Process for the preparation of anthraquinoid intermediate products and vat dyes |
| 10/20/1987 | US4701281 Process for the preparation of anthraquinone imides |
| 09/08/1987 | US4692278 Process for the preparation of 1,4-diaminoanthraquinones |
| 07/08/1987 | EP0227980A2 Fluorescent aroxysubstituted 3,4,9,10-perylenetetracarboxylic acid-diimides and their use for the concentration of lights in small areas |
| 06/30/1987 | US4677501 Method and apparatus for displaying indications of instructions in previously recorded messages |
| 06/30/1987 | US4676923 Dichroic dyestuffs for liquid crystal and liquid crystal composition |
| 05/19/1987 | US4667036 Fluorescent dyes for plastics |
| 04/22/1987 | EP0219044A2 Fluoranthene vat dyes and process for their preparation |
| 04/07/1987 | US4655843 Solvent resistance |
| 02/04/1987 | EP0210955A2 Process for the preparation of anthrimide carbazoles |
| 01/28/1987 | EP0210135A2 Process for the preparation of mixtures of anthraquinone dispersion dyestuffs |
| 01/22/1987 | DE3620659A1 Perylene-3,4,9,10-tetracarboxylic diimide dye |
| 01/14/1987 | EP0208266A2 Process for the preparation of perylene-3,4,9,10-tetracarboxylic-acid-N,N'-dimethyl imide in an opaque pigment form |
| 12/09/1986 | US4628091 Vat dyes, indanthrone |
| 11/25/1986 | US4624532 Dichroic liquid crystal compositions containing anthraquinone-based dyes |
| 10/29/1986 | EP0199670A2 Process for the preparation of anthraquinone imide compounds |
| 10/22/1986 | EP0198795A2 Process for the preparation of 1,4-diaminoanthraquinones |
| 10/22/1986 | EP0198369A2 Process for the preparation of perylene-3,4,9,10-tetracarboxylic-acid aryl imides |
| 10/22/1986 | EP0198082A1 Polarizing film |
| 09/23/1986 | US4613667 Paints, enamels, plastics, insk |
| 09/23/1986 | CA1211753A1 Dichroic dye and liquid crystalline composition for color display |
| 08/19/1986 | US4607097 Dichromatic coloring matter for a colored liquid crystal display element |
| 07/08/1986 | US4599408 Perylene-3,4,9,10-tetracarboxylic acid monoanhydride monoimides |
| 07/01/1986 | US4597891 Liquid crystal compositions and devices and novel compounds |
| 06/25/1986 | EP0185569A1 Process for the preparation of anthraquinone vat dyes, dyes obtained by this process and textile products dyed with these dyes |
| 06/10/1986 | US4594420 Substituted with bromine or chlorine |
| 05/13/1986 | US4588814 Process for the preparation of 3,4,9,10-perylenetetracarboxylic acid diimide |
| 04/10/1986 | WO1986002170A1 Polarizing film |
| 04/09/1986 | EP0176902A2 Mixed crystals of pigments on the basis of diimides of perylene tetracarboxylic acid, their manufacturing process and their use |
| 04/09/1986 | EP0176900A2 Process for the manufacture of mixed crystals of pigments on the basis of diimides of perylene tetracarboxylic acid, and their use |
| 04/09/1986 | EP0176899A2 Mixed crystals of pigments on the basis of diimides of perylene tetracarboxylic acid, their manufacturing process and their use |
| 02/25/1986 | CA1200970A1 Helichromic-smectic liquid crystal compositions and display cells |
| 12/03/1985 | US4556654 Antimicrobial substituted anthra[1,9-cd]pyrazol-6(2H)-ones |
| 12/03/1985 | US4556622 Electrophotographic recording material whose photoconductor layer contains a halogenated perylene dye sensitizer |
| 11/12/1985 | US4552684 Anthraoxazole or anthrathiazole dyes |
| 10/02/1985 | EP0156514A2 Photoconductive devices containing perylene dye compositions |
| 08/06/1985 | CA1191376A1 Heat-developable color photographic material including dye releasing compound which bonds to oxidized product of reducing agent |
| 07/23/1985 | US4530572 Substituted anthraquinone-type isotropic dyes for liquid crystal display devices |
| 06/12/1985 | EP0143979A2 Electrophotographic recording material |
| 05/28/1985 | US4520202 Oxidation mixture of 1-amini- and 1,4-diamino-anthraquinone, then reduction |
| 05/14/1985 | US4517270 Panchromatic, perylene dyes, offset printing plates |
| 05/08/1985 | EP0140688A2 Silane perylene dyes, composite pigments obtainable therefrom, and processes for preparing the same |
| 04/30/1985 | US4514482 Diamine hole transport layer;xerography |
| 04/30/1985 | US4514045 Helichromic-smectic liquid crystal compositions and display cells |
| 02/19/1985 | CA1182815A1 Polymeric dyes |
| 02/13/1985 | EP0132757A1 Process for the preparation of oxamides |
| 01/29/1985 | US4496731 Process for the preparation of perylene-3,4,9,10-tetracarboxylic acid N,N'-d |
| 01/08/1985 | US4492790 Vat dyestuffs of the trisanthraquinonylaminotriazine series |
| 01/08/1985 | US4492648 Collecting electromagnetic waves |
| 01/01/1985 | US4491666 Preparation of anthraquinoid disperse dyes |
| 12/04/1984 | US4486587 Lighfastness, theromostability |
| 11/20/1984 | US4483914 Redox system containing a dye releasable compound |
| 10/31/1984 | EP0123256A2 Process for the preparation of 3,4,9,10-perylene tetracarboxydiimide |
| 10/30/1984 | CA1176898A1 Use of perylene pigments for photoelectrophoretic imaging |
| 10/24/1984 | EP0122442A1 Perylene-3,4,9,10-tetracarboxylic-acid-monoanhydride-monoimide and monoimide-azolide compounds, process for their preparation and their use |
| 09/26/1984 | EP0119956A2 Process for the preparation of vat dyes |
| 08/15/1984 | EP0115683A2 Composition comprising substituted anthraquinone-type isotropic dyes for liquid crystal display devices |
| 07/03/1984 | CA1170254A1 Dyes containing imidazolylmethylene groups |
| 05/29/1984 | US4451398 Dyes containing imidazolymethylene groups |
| 05/22/1984 | US4450273 NN' Para methoxy benzyl perylene-3,4,9,10-tetracarboxylic acid diimide |
| 05/02/1984 | EP0107492A2 Helichromic-smectic liquid crystal compositions and display cells |
| 05/01/1984 | US4446470 Ink-jet color printing system |
| 05/01/1984 | US4446324 Lightfast dye |
| 04/25/1984 | EP0047205B1 Process for the preparation of alpha-benzamido-alpha'-halogen-1,1'-dianthrimides, alpha-benzamido-5' or 8'-halogen-1,1'-dianthrimides and their application as intermediates for vat dyes |