| Patents for C09B 26 - Hydrazone dyes; Triazene dyes (487) |
|---|
| 06/23/1981 | US4275148 Light-sensitive silver halide color photographic materials |
| 05/27/1981 | EP0029136A2 Quaternary and basic azomethine compounds, process for their preparation and their use as dyestuffs |
| 05/19/1981 | US4268592 Pyrazolone magenta coupler |
| 04/28/1981 | US4264723 Containing pyrazolone couplers |
| 04/28/1981 | US4264721 An acylamide yellow coupler and a 5-thia-1,2,4-triazole |
| 04/28/1981 | US4264326 New disperse dyestuffs; their preparation and their applications to the coloration of synthetic materials |
| 04/21/1981 | CA1099559A1 1,2,4-triazole derivatives substituted with a thio or seleno group in the 5-position |
| 04/01/1981 | EP0025908A1 1:1-Nickel complexes and their use |
| 03/03/1981 | US4254213 Bis-pyrazolones |
| 02/17/1981 | US4251656 Cationic dyes |
| 02/11/1981 | EP0023671A1 Process for the preparation of cationic dyestuffs |
| 02/11/1981 | EP0023652A1 Process for the preparation of cationic dyestuffs |
| 02/03/1981 | US4248775 Preparation of solutions of azo methine basic dyestuffs |
| 12/23/1980 | US4241168 Two-equivalent magenta coupler |
| 12/16/1980 | CA1091654A1 Azo dyestuffs |
| 12/10/1980 | EP0020302A1 Nickel complex of an isoindolinazine, its preparation process, its use for pigmenting high molecular organic material and this high molecular organic material |
| 12/10/1980 | EP0020299A1 Nickel complexes of azines, their preparation process, pigmenting process for a high molecular organic material and the material so obtained |
| 12/02/1980 | US4237293 Colorfast shades of yellow to red for plastics and lacquers |
| 12/02/1980 | US4237292 Metal complexes of azomethines |
| 12/02/1980 | US4237286 Coloring plastics and lacquers in yellow to red shades |
| 12/02/1980 | US4237275 Process for producing hydrazone derivatives of pyridinaldehydes |
| 12/02/1980 | US4237217 Silver halide emulsion containing two-equivalent magenta coupler |
| 10/28/1980 | US4230870 Novel photographic color couplers |
| 10/21/1980 | US4229577 Improved reactivity, minimal fog, high fastness to light |
| 09/30/1980 | US4225485 Chemiluminescent naphthalene-1,2-dicarboxylic acid hydrazide-labeled polypeptides and proteins |
| 09/02/1980 | US4220470 Silver halide material containing photographic magenta coupler |
| 05/06/1980 | US4201707 Methine dyestuffs containing a phenyl azo group |
| 04/22/1980 | US4199361 3-anilino-5-pyrazolone magenta color-forming coupler |
| 04/01/1980 | CA1074786A1 Metal complexes of bishydrazides |
| 03/05/1980 | EP0008323A1 Process for the preparation of pyridine aldehydes and their derivatives, and compounds made by this process |
| 02/19/1980 | US4189321 Process for forming magenta dye images |
| 02/12/1980 | US4188489 From a hydrazine containing a sulfo group and a beta-substituted amino-beta-alkoxy acrylic acid derivative |
| 01/29/1980 | CA1070677A1 1:1-azomethine-metal-complex dyestuffs |
| 11/13/1979 | US4174221 Yellow 2:1 chrome complexed dye developers |
| 10/23/1979 | CA1064929A1 Metal complexes of bis-hydrazones and a process for their manufacture |
| 09/18/1979 | US4168264 Printing and dyeing of polyacrylonitrile textiles |
| 08/07/1979 | US4163670 Color photographic material |
| 05/15/1979 | CA1054617A1 Metal complexes of azomethines and process for their manufacture |
| 05/02/1979 | EP0001599A1 Electrophotographic recording material and its application in a copying process |
| 04/24/1979 | US4150987 Electrography |
| 03/27/1979 | US4146396 Method of forming color photographic images |
| 03/20/1979 | CA1050992A1 Azomethine pigments |
| 03/06/1979 | US4143228 Pyrazolinyl indolium dyestuffs |
| 02/06/1979 | US4138570 Indoline linked to 2-pyrazoline |
| 01/09/1979 | US4133686 Color photographic light-sensitive element |
| 01/02/1979 | US4132708 Metal complexes of azomethines and process for their manufacture |
| 12/19/1978 | US4130427 Silver halide emulsion containing two-equivalent color couplers for yellow |
| 12/05/1978 | US4128427 Silver halide emulsions containing polymeric color couplers |
| 11/21/1978 | US4126462 A substituted 5-pyrazolone or pyrazolobenzimidazole coupler |
| 10/31/1978 | US4123281 Photographic silver halide color material containing fast-acting hardener and 2-pyrazolin-5-one coupler precursors |
| 09/26/1978 | CA1039279A1 Vat dyestuffs containing a pyridyl or pyrimidyl radical bonded to an s-triazine ring through a carbon bond |
| 09/19/1978 | US4115121 Silver halide color photographic material containing yellow coupler |
| 09/05/1978 | US4111947 Novel metal complexes of azomethines and process for their manufacture |
| 05/30/1978 | US4092104 Process for making yellow, basic azomethine dyes |
| 02/14/1978 | US4073651 Image-forming layer containing silver halide emulsion and magenta coupler |
| 01/24/1978 | US4070191 Pyrazolone dyes |
| 01/10/1978 | US4068085 Yellow and red on polyesters and acrylics |
| 12/27/1977 | US4065481 1:1-Azomethine-metal-complex dyestuffs |
| 12/20/1977 | US4064136 From a nitrile, an alcohol and ortho-substituted aromatic amine |
| 12/13/1977 | US4062683 Photographic material containing 3-anilino-5-pyrazolylalkylcarbonate or arylcarbonate couplers |
| 10/25/1977 | US4055565 Optical brightening agents of naphthalimide derivatives |
| 10/25/1977 | US4055428 Colo photography, diffusion transfer silver halide emulsions |
| 09/13/1977 | US4048151 Azo dyes, nitrogen heterocycles, polymers |
| 09/06/1977 | US4046573 Color photographic materials |
| 08/09/1977 | US4040836 Silver halide emulsion containing two-equivalent coupler |
| 08/09/1977 | US4040835 Two-equivalent magenta couplers with amido coupling-off groups |
| 08/02/1977 | US4039526 Cationic dyestuffs containing quaternized benzthiazole and p-substituted amino azo phenyl moieties |
| 06/28/1977 | US4032346 Silver halide emulsion containing two-equivalent magenta coupler |
| 05/31/1977 | US4026885 Process for the manufacture of cationic hydrazone dyes |
| 05/17/1977 | US4024132 Azomethine pigments |
| 05/10/1977 | US4022770 Coloring |
| 04/05/1977 | US4016157 Metal complexes of bis-hydrazones |
| 12/28/1976 | US4000130 Cationic dyestuffs |
| 11/16/1976 | US3992140 Acid-modified textile fibers |
| 10/26/1976 | US3988323 Metal complexes of bishydrazides |
| 09/21/1976 | US3981869 Process for the preparation of heterocyclic compounds |
| 08/10/1976 | US3974149 Azomethine pigments |
| 08/10/1976 | US3973903 Azomethine dye solutions |
| 07/27/1976 | US3971821 From an aniline and a formamide |
| 06/01/1976 | US3960744 Powder detergent composition |
| 06/01/1976 | US3960571 1-phenyl-2-pyrazol-5-one magenta color forming coupler |
| 05/11/1976 | US3956264 Basic azo dyestuffs having indolyl-methyleneamino substituent in the diazo component |
| 04/13/1976 | US3950347 Naphtholactam dyestuffs |
| 03/30/1976 | US3947272 Silver halide emulsions containing 2-pyrazolon-5-one photographic colour couplers |
| 01/27/1976 | US3935015 Silver halide color photographic materials containing 3-anilino-5-pyrazolane couplers |
| 01/06/1976 | US3931221 Process for preparing 3-anilino-pyrazolones-(5) |
| 01/06/1976 | US3930861 Magenta, color photography |