| Patents for C09B 55 - Azomethine dyes (1,049) |
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| 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 |
| 06/21/1983 | CA1148402A1 Photographic material including an azamethine compound and an activator for a bleach -developer precursor |
| 06/01/1983 | EP0080355A1 Photographic elements containing aryloxy substituted photographic couplers |
| 05/25/1983 | EP0079858A1 Azo dyestuffs, metal complexes thereof, their preparation and use |
| 05/04/1983 | EP0077965A1 A method of preparing concentrated solutions of lithium salts of 1:2 complex metal azo dyestuffs |
| 03/22/1983 | CA1143377A1 Material fo colour photography |
| 03/22/1983 | CA1143375A1 Recording material for colour photography |
| 03/16/1983 | EP0073951A1 1:2-Asymmetric chromium complex dyestuffs and process for preparing them and dying therewith |
| 03/09/1983 | EP0073636A1 Photographic elements containing ballasted couplers |
| 03/02/1983 | EP0073008A2 Cationic dyestuffs |
| 02/23/1983 | EP0072501A1 Asymmetric 1:2 chromium-complex dyestuffs |
| 02/22/1983 | US4374922 Method for the formation of a dye image |
| 02/08/1983 | CA1140793A1 Pivalylacetanilide couplers and photographic elements including them and/or the dyes formed upon color development of such couplers and method for forming a photographic dye image in the presence of said couplers |
| 01/25/1983 | US4370499 Chemical intermediates for color photography |
| 01/25/1983 | CA1140135A1 Process for forming dye images |
| 01/05/1983 | EP0068242A1 Asymmetrical 1:2 complexes of chromium |
| 12/28/1982 | US4366237 Pyrazolone magenta coupler |
| 12/08/1982 | EP0066230A1 1:2-asymmetric dyestuffs of chromium |
| 11/23/1982 | US4360581 Color photographic recording material containing non-diffusing electron donor compounds |
| 11/23/1982 | US4360459 Sulphur dyestuffs of the carbazole series |
| 11/16/1982 | US4359521 Dir couplers |
| 11/09/1982 | US4358531 Photographic material, process for the production thereof and process for the production of photographic images |
| 10/26/1982 | US4356258 An acylacetanilide derivative; image preservation |
| 10/06/1982 | EP0061670A1 Process for dyeing leather and pelts with dye mixtures |
| 07/27/1982 | CA1128543A1 Yellow-dye-forming couplers |
| 07/20/1982 | US4340536 Chrome-complex dyes and the production and use thereof |
| 07/13/1982 | US4339523 Process for producing photographic images |
| 06/22/1982 | US4336327 Colorfastness; color fims |
| 05/25/1982 | US4331596 Arylazoarylazo-substituted azo, azomethine 1:2 chromium complex dyes |
| 04/28/1982 | EP0050260A1 Photographic material, process for its production and method for the production of photographic pictures |
| 04/20/1982 | US4326024 Silver halide emulsion containing yellow-dye-forming coupler |
| 04/13/1982 | US4324898 Heterocyclic compounds useful as color photographic material |
| 04/07/1982 | EP0048886A1 Liquid-crystal composition containing a pleochroic anthraquinone dye, and process for the production of such a dye |
| 04/06/1982 | US4323671 Anthraquinone derivatives, processes for their preparation, processes for pigmenting organic macromolecular substances, and pigmented organic macromolecular material |
| 04/06/1982 | US4323670 Anthraquinone-azomethine compounds, processes for their preparation and processes for pigmenting organic macromolecular substances |
| 03/30/1982 | US4322554 Polymeric azomethines |
| 03/30/1982 | US4322536 Reacting 3-or 4-aminomethylpyridine with an oxo compound; isomeriz |
| 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 |
| 02/18/1982 | WO1982000472A1 Derivatives of 2,2-azoimidazole,method for the preparation thereof,liquid crystal material and electro-optical device |
| 02/16/1982 | US4316032 Oximino-imino-isoindoline metal complexes useful as pigments |
| 02/16/1982 | US4315854 Chromium and cobalt complex amino hydroxy azomethine dyes |
| 01/19/1982 | US4311641 Chromium complexes of mixed azo compounds |
| 01/13/1982 | EP0043794A2 Chromium-complex dyestuffs, their preparation and use |
| 01/12/1982 | US4310612 Blocked photographically useful compounds in photographic compositions, elements and processes employing them |
| 01/05/1982 | US4309221 Anthraquinone derivatives |
| 12/09/1981 | EP0041170A1 3-Nitro-pivaloyl-acetanilides, processes for their preparation and their utilization |
| 12/08/1981 | US4304845 Silver halide photographic materials containing photographic yellow coupler |
| 11/11/1981 | EP0039419A1 Process for preparing 2,6-dichloro-5-hydroxy aniles |
| 10/27/1981 | US4297502 Aromatic bisazomethines, a method for their preparation, and their use as reactive pigments |
| 10/27/1981 | CA1111436A1 Process for the production of a bis-azomethine pigment |
| 10/21/1981 | EP0037904A1 Metal-complex dyestuffs |
| 10/20/1981 | US4296200 Silver halide photographic light-sensitive material |
| 10/14/1981 | EP0037563A1 Sulfur dyes of the carbazole series, their preparation and application, as well as intermediate compounds |
| 10/13/1981 | US4294918 Containing a colorless cyan color forming coupler |
| 10/13/1981 | US4294749 Process for the coloration of thermoplastic polymers and polycondensates in the mass with water-insoluble disazo-methine compounds |
| 10/06/1981 | US4293691 Method for preparing magenta couplers having thioether groups |
| 09/15/1981 | US4289847 Method of forming dye image |
| 09/09/1981 | EP0035262A2 Photosensitive material especially photosensitive presensitized printing plate and leuco-dyes contained therein |
| 08/25/1981 | US4286053 Alpha- pivaloyl acetanilide couplers having a ballasting sulfonyl alkyl amido group; photostability; yellow |
| 08/25/1981 | CA1107738A1 Metal complex compounds, process for their manufacture and their use as pigments |
| 08/25/1981 | CA1107723A1 Yellow 2:1 chrome complexed dye developers |
| 08/18/1981 | US4284411 Anthraquinone derivatives for pigmenting organic macromolecular substances |
| 07/14/1981 | CA1104758A1 Water-insoluble disazomethine mixed metal-complex compounds, process for preparing them and their use as colorants |
| 07/07/1981 | US4277398 Orange-colored, counteracting unwanted absorption of magenta dyes in color photography |
| 07/07/1981 | CA1104577A1 Yellow azomethine dyes |
| 06/24/1981 | EP0030747A1 2-Equivalent yellow-forming colour couplers, their use in the production of photographic colour images, and photographic elements containing such couplers |
| 06/23/1981 | CA1103690A1 Process for production of an azomethine pigment |
| 06/03/1981 | EP0029546A1 Colour-photographic recording material with non-diffusible electron donor compounds |
| 05/19/1981 | US4268668 Acid monomethine-metal complex dyestuffs |
| 05/19/1981 | US4268591 Material for color photography |
| 05/12/1981 | US4267318 1-(Diarylmethyl)-4-piperidinamine and derivatives thereof |
| 05/06/1981 | EP0028099A1 Photographic couplers, emulsions, materials and processes |
| 05/05/1981 | US4266019 Silver halide photographic material containing yellow coupler |
| 05/05/1981 | US4265632 Process for the coloration of thermoplastic polymers and polycondensates in the mass with water-insoluble disazomethine compounds |
| 04/28/1981 | US4264494 Chromium complex dyestuffs for natural polyamides and synthetic nylons |
| 04/28/1981 | US4264326 New disperse dyestuffs; their preparation and their applications to the coloration of synthetic materials |
| 04/28/1981 | CA1099910A1 U.v. absorbing compositions |
| 04/21/1981 | CA1099559A1 1,2,4-triazole derivatives substituted with a thio or seleno group in the 5-position |
| 03/17/1981 | CA1097619A1 Solvent dyes |
| 02/18/1981 | EP0024033A1 Photographic colour couplers and light-sensitive material containing them |
| 02/11/1981 | EP0023666A1 Anthraquinone-azomethine compounds, process for their preparation as well as a process for pigmenting organic macromolecular materials |
| 02/11/1981 | EP0023648A1 Anthraquinone-azomethine compounds, process for their preparation; process for dyeing synthetic fibre materials as well as for pigmenting organic macromolecular materials |
| 02/03/1981 | US4248961 Material for color photography |
| 01/27/1981 | US4247455 Yellow 2:1 azo-azo or azo-azomethine chrome complexed dye developers |
| 01/20/1981 | US4246401 Axomethine pigments |
| 12/23/1980 | US4241172 Light-sensitive silver halide color photographic material |
| 12/23/1980 | CA1092121A1 2-quinolone azomethine copper complex pigments |
| 12/16/1980 | CA1091681A1 Azamethine-cu complex compounds, process for their preparation and their use |
| 12/10/1980 | EP0019851A1 1:2 Chromium complex dyestuffs of the azomethine and/or azo series, their preparation and use in dyeing and printing polyamide or cellulose materials |
| 12/09/1980 | US4238564 Yellow couplers |
| 12/02/1980 | US4237281 For photographic films |
| 12/02/1980 | US4237275 Process for producing hydrazone derivatives of pyridinaldehydes |
| 11/18/1980 | CA1089869A1 Metal-containing disazomethine compounds, process for preparing them and their use as colorants |
| 11/12/1980 | EP0018939A1 1:2 Metal complex dyestuffs of azomethines, process for their preparation and process for dyeing and printing by using these dyestuffs |
| 11/12/1980 | EP0018538A2 Anthraquinone derivatives, process for their preparation, process for the pigmentation of organic macromolecular materials and pigmented organic macromolecular material |
| 11/04/1980 | US4231950 Photography |
| 10/29/1980 | EP0017833A1 Colour-photographic recording material containing a yellow coupler |