| Patents for C09B 56 - Azo dyes containing other chromophoric systems (771) |
|---|
| 11/17/1988 | EP0291089A2 Electrophotographic photoreceptor |
| 11/09/1988 | EP0156768B1 Process for the preparation of 1:2 chromium complex dyes |
| 10/25/1988 | US4780531 Dichoric dye for color liquid crystals having halogen substituted in perylene structure |
| 10/06/1988 | DE3710077A1 Copper complex dyes |
| 10/04/1988 | US4775747 Copper or nickel complexes of ligands containing an azomethine, semicarbozone or hydrazone moiety |
| 09/28/1988 | EP0284560A2 Disperse dyes containing a tricyanovinyl group |
| 09/20/1988 | US4772323 Improved storage and ejection stability |
| 07/19/1988 | US4758658 Water-soluble formazan dye |
| 06/28/1988 | US4754021 Methine-azo compounds containing cyclic ammonium groups |
| 05/03/1988 | US4742162 Azo-stibene condensates as leather dyes |
| 04/19/1988 | US4738908 Photothermal transducing type of recording medium |
| 03/29/1988 | US4734218 Dichroic azo dyestuffs and liquid crystal composition containing said dyestuffs |
| 03/23/1988 | EP0260557A2 Asymmetric 1:2 metal complex dyestufs |
| 03/09/1988 | EP0259099A2 Electrophotographic photoreceptor |
| 12/17/1987 | DE3619605A1 Formylphenyl- or styrylazopyridines |
| 11/24/1987 | US4709019 Colorfast pigments |
| 06/02/1987 | US4670486 Polymer composition pigmented with copper or nickel complexes of ligands containing a semicarbazone moiety |
| 05/26/1987 | US4668775 Polyesters, nylon, cellulose esters, fibers, blue |
| 05/19/1987 | US4666805 Photosensitive material containing disazo compound for use in electrophotography |
| 04/22/1987 | EP0219232A2 Water-soluble dye |
| 03/17/1987 | US4650859 Wool,polyamides, leather |
| 01/27/1987 | US4639477 Azo dyes |
| 12/16/1986 | US4629672 Electrography; optical recording media photsensitivity; durability |
| 11/26/1986 | EP0202341A1 Dichroic azo dyes |
| 07/08/1986 | US4599402 Metal complex dyes containing azo azomethine groups |
| 06/05/1986 | WO1986003215A1 Dichroic azo dyes |
| 05/28/1986 | EP0182743A2 Concentrated storage-stable aqueous solutions of yellow stilbene azo(xy) dyes |
| 04/09/1986 | EP0176742A2 Polyazo dyes |
| 04/02/1986 | EP0176474A1 Methine azo compounds |
| 04/02/1986 | EP0176473A1 Methine azo compounds |
| 04/02/1986 | EP0176472A1 Methine azo compounds |
| 02/25/1986 | CA1200970A1 Helichromic-smectic liquid crystal compositions and display cells |
| 02/05/1986 | EP0170157A2 Methine dyes |
| 02/04/1986 | US4568623 Photoconductive compositions containing novel disazo compounds and electrophotographic photoreceptors using the same |
| 01/22/1986 | EP0169167A2 Process for dyeing high-molecular organic materials, and metal complexes |
| 01/15/1986 | EP0168343A2 Metal complexes, process for their preparation and their use in dyeing high-molecular organic materials |
| 12/24/1985 | US4560744 Azo dye 2:1-chromium complexes |
| 11/06/1985 | EP0160113A1 Water soluble disazo compound, copper salt thereof, and sheet or film colored therewith |
| 10/02/1985 | EP0156768A2 Process for the preparation of 1:2 chromium complex dyes |
| 08/27/1985 | US4537847 Disazo photoreceptors for electrophotography |
| 08/07/1985 | EP0150676A2 1:2 Chromium complex dyes |
| 07/10/1985 | EP0148121A2 Asymmetrical 1:2 chromium complex dyes |
| 05/22/1985 | EP0142019A2 Complex metal dyestuffs containing azo groups |
| 05/14/1985 | US4517270 Panchromatic, perylene dyes, offset printing plates |
| 04/30/1985 | US4514559 Water soluble disazo compound, copper salt thereof, and sheet or film colored therewith |
| 04/30/1985 | US4514045 Helichromic-smectic liquid crystal compositions and display cells |
| 03/19/1985 | US4505857 Azo compounds having a 5-substituted-4-chlorothiazolyl-2-diazo component radical |
| 02/05/1985 | US4497734 Asymmetrical 1:2 chromium complexes derived from azo and azomethine dyes |
| 01/16/1985 | EP0131140A2 Photoconductive compositions and electrophotographic photoreceptors using the same |
| 01/15/1985 | US4493798 For polyamides, wool, and leather |
| 12/04/1984 | US4486196 Metallized azo and azo-methine dyes |
| 10/17/1984 | EP0122224A2 Concentrated storage-stable aqueous solutions of yellow to greenish yellow stilbene azo or stilbene azoxy dyes |
| 06/27/1984 | EP0112281A1 Assymmetrical 1:2 chromium complex dyestuffs containing one azo and one azomethine compound |
| 06/26/1984 | CA1169855A1 Chrome-complex dyes and the production and use thereof |
| 05/02/1984 | EP0107492A2 Helichromic-smectic liquid crystal compositions and display cells |
| 04/17/1984 | US4443370 Chrome-complex dyes |
| 04/17/1984 | CA1165611A1 Electrophotographic element with photosensitive layer containing a disazo pigment |
| 03/13/1984 | US4436659 Dyeing polyamids, azo dyes |
| 01/03/1984 | US4424153 1:2 Chromium complex dyes containing sulfonic acid groups |
| 12/20/1983 | CA1159051A1 Fibre-reactive chromium complex dyes, process for their production and use thereof |
| 12/13/1983 | US4420627 Hydrazine dyes |
| 11/22/1983 | US4416815 Fiber-reactive unsymmetrical 1:2 chromium complex azo dyes |
| 11/01/1983 | US4412949 Pigments comprising cyanomethylquinazolones coupled to diazo compounds prepared from 1-aminoanthroquinones |
| 09/06/1983 | US4402854 Liquid crystals having pleochroic dyes |
| 09/06/1983 | CA1153237A1 Electrophotographic sensitive element including a disazo compound |
| 08/23/1983 | US4400059 Liquid crystal display device |
| 07/05/1983 | CA1149379A1 Iminoisoindolinone pigments |
| 06/22/1983 | EP0082117A1 Chromium complexes of polyazo dyestuffs |
| 06/21/1983 | US4389215 Anthraquinone-azomethine compounds, processes for their preparation and processes for dyeing synthetic fibre materials and for pigmenting organic macromolecular substances |
| 06/21/1983 | CA1148538A1 Metal complex compounds, processes for their manufacture and their use |
| 05/04/1983 | EP0078151A1 Photoreceptors for electrophotography |
| 03/16/1983 | EP0073951A1 1:2-Asymmetric chromium complex dyestuffs and process for preparing them and dying therewith |
| 02/23/1983 | EP0072501A1 Asymmetric 1:2 chromium-complex dyestuffs |
| 02/01/1983 | CA1140330A1 Pleochroic dyes suitable for use in solution with liquid crystal materials for electro-optic device applications |
| 01/04/1983 | US4367173 Azo pigments containing pyrazoloquinazolone radicals |
| 12/14/1982 | US4363743 Liquid crystals having pleochroic dyes |
| 12/08/1982 | EP0066230A1 1:2-asymmetric dyestuffs of chromium |
| 11/16/1982 | US4359515 Disazo electrophotographic light-sensitive media |
| 10/12/1982 | CA1133480A1 Sulfoarylated nigrosine dye and use in jet-printing inks |
| 09/29/1982 | EP0061088A1 Electrophotographic recording material |
| 09/14/1982 | US4349616 Disazo pigment containing electrophotographic element |
| 09/01/1982 | EP0058866A1 Anthraquinone-azo compounds, their preparation and use |
| 07/14/1982 | EP0055989A2 Liquid crystal with an incorporated pleochroic anthraquinone dyestuff, and process for the preparation of the dyestuff |
| 05/25/1982 | US4331596 Arylazoarylazo-substituted azo, azomethine 1:2 chromium complex dyes |
| 04/27/1982 | US4327168 Electrophotographic element containing disazo pigment charge generating material |
| 04/06/1982 | US4323670 Anthraquinone-azomethine compounds, processes for their preparation and processes for pigmenting organic macromolecular substances |
| 04/06/1982 | CA1121344A1 Bismethinic pigments |
| 03/31/1982 | EP0048693A2 Disazo dyestuffs, metal complexes thereof, their preparation and use |
| 03/17/1982 | EP0047427A1 1:2-Chromium complex dyestuffs containing sulfonic-acid groups |
| 03/09/1982 | US4319025 Anthraquinone-azomethine compounds, processes for their preparation and processes for dyeing synthetic fibre materials and for pigmenting organic macromolecular substances |
| 03/09/1982 | US4318849 Novel metallized dyes, their manufacture and use |
| 02/16/1982 | US4315854 Chromium and cobalt complex amino hydroxy azomethine dyes |
| 02/09/1982 | US4314938 Iminoisoindolinone pigments containing phenylazoacetoacetyl-aminophenylene groups |
| 01/20/1982 | EP0043937A2 Anthraquinone-azo compounds, their preparation and their use |
| 01/19/1982 | US4311641 Chromium complexes of mixed azo compounds |
| 01/13/1982 | EP0043794A2 Chromium-complex dyestuffs, their preparation and use |
| 01/12/1982 | US4310331 Process for the preparation of the dyestuff direct yellow 11 in the form of concentrated stable solutions, the solutions obtained and their applications |
| 01/06/1982 | EP0043010A1 Pigment dyes |
| 12/22/1981 | CA1114811A1 Anthraquinone-azo compounds, their preparation and their use as dyestuffs |
| 10/21/1981 | EP0037904A1 Metal-complex dyestuffs |