| Patents for C09B 56 - Azo dyes containing other chromophoric systems (771) |
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| 09/30/1981 | EP0036522A2 Water-soluble nickel-containing azophthalocyanine dyestuffs and their use |
| 09/02/1981 | EP0034942A2 Electrophotographic light-sensitive media |
| 09/02/1981 | EP0034832A1 Liquid crystal with an incorporated pleochroic anthraquinone dyestuff and its use |
| 08/25/1981 | US4285863 Pigment compounds and method of preparations |
| 08/25/1981 | US4285859 Azo compounds useful in a photographic dye diffusion transfer process |
| 08/25/1981 | CA1107723A1 Yellow 2:1 chrome complexed dye developers |
| 08/18/1981 | US4284774 Sulfoarylated nigrosine dye and use in jet-printing inks |
| 08/18/1981 | US4284698 Disazo pigment and a charge transport layer |
| 07/07/1981 | CA1104565A1 Hydrazone compounds, their preparation and use |
| 06/16/1981 | US4273926 Azo dyes from 2-amino-5-styryl-1,3,4-thiadiazoles |
| 06/09/1981 | US4272598 Styryl dyes |
| 05/20/1981 | EP0028699A2 Sulfoarylated nigrosine base, process for preparing this compound, and the jet print ink compositions containing it |
| 05/12/1981 | US4266939 Composition of 4-amino-4'-nitrostilbene-2,2'-disulphonic acid diazo compounds and coloring process |
| 05/06/1981 | EP0027950A2 Fibre-reactive chromium complex dyestuffs, their preparation and their use |
| 04/28/1981 | US4264494 Chromium complex dyestuffs for natural polyamides and synthetic nylons |
| 04/07/1981 | US4260672 Electrophotographic sensitive element having a photoconductive disazo pigment |
| 03/31/1981 | CA1098516A1 Process for the manufacture of phthalocyanine azo dyestuffs |
| 03/17/1981 | US4256634 Monoazo dyes; dyeing and printing of wool, silk, perlon", and leather; colorfastness |
| 03/17/1981 | US4256633 Azo dyes; azomethine dyes; wool, polyamides, and leather |
| 03/03/1981 | US4254025 Disazo and polyazo dyestuffs |
| 02/24/1981 | US4252566 Cumarinic pigments |
| 02/17/1981 | CA1095899A1 Process for the manufacture of fibre-reactive phthalocyanine azo dyestuffs |
| 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 |
| 02/11/1981 | EP0023617A1 Anthraquinone-azo compounds, process for their preparation and their use as pigments |
| 02/10/1981 | US4250090 2-Amino-5-arylazoarylazothiazole compounds |
| 01/07/1981 | EP0022076A1 Iminoisoindolinone dyestuffs, methods for their preparation and their use |
| 12/30/1980 | US4242260 Electrography; photoconductivity |
| 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 |
| 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 |
| 09/30/1980 | US4225489 Heterocyclic azo dyes and pigments containing 4-quinazolinone moieties |
| 09/17/1980 | EP0015361A1 Cumarinic pigments, process for their preparation and their use |
| 08/26/1980 | US4219475 Azo dyes from 2-amino-5-styryl-1,3,4-thiadiazoles |
| 08/26/1980 | US4219473 Substituted unsymmetrical azo, azomethine 1:2 chromium complexes |
| 08/05/1980 | US4216146 Azo(hydrazo)-anthraquinone compounds |
| 07/29/1980 | US4215042 Copper, and nickel complexes of azo dyestuffs |
| 07/15/1980 | US4212801 Unsymmetrical 1:2-chromium complexes containing an azo and an azomethine bond |
| 05/20/1980 | US4204056 Process and intermediates for preparing fiber-reactive phthalocyanine dyes |
| 05/06/1980 | US4201547 Process for the preparation of azo dyestuffs on fiber materials consisting of, or containing, cellulose fibers |
| 04/02/1980 | EP0009466A1 1 : 2-Bis-chromium-complex dyestuffs from polyazo- or disazo-azomethine compounds, their preparation and their use |
| 03/04/1980 | US4191686 Process for preparing fiber-reactive phthalocyanine azo dyes |
| 01/22/1980 | US4184750 Novel liquid crystal dyestuffs and electro-optic devices incorporating same |
| 12/25/1979 | CA1068684A Azomethine dyes for polypropylene |
| 12/25/1979 | CA1068682A Bisazomethine dyes for polypropylene |
| 11/14/1979 | EP0005207A2 Bis-1:2 chrome-disazo-bisazo methine dyestuffs, their preparation and use for dyeing of leather |
| 11/13/1979 | US4174221 Yellow 2:1 chrome complexed dye developers |
| 08/07/1979 | CA1059997A1 Chromium complex dyes, their manufacture and use |
| 05/30/1979 | EP0002104A1 Pleochroic dyes suitable for use in solution with liquid crystal materials for electro-optic device applications |
| 05/30/1979 | EP0002041A1 Processes for synthesizing bisazomethine-bisazo pigments |
| 05/22/1979 | CA1055019A1 Metallised dyes, their manufacture and use |
| 05/15/1979 | CA1054617A1 Metal complexes of azomethines and process for their manufacture |
| 04/18/1979 | EP0001451A1 Water-soluble azo-phthalocyanine fibre-reactive dyestuffs, their preparation and their use |
| 11/21/1978 | US4126608 Process for the production of salts of stilbene-azo and stilbene-azoxy dyes |
| 11/21/1978 | CA1042876A1 Metal complexes of bis-azomethines and processes for their manufacture |
| 10/31/1978 | US4123223 Metal-modified polypropylene dyed with azomethine dyes derived from an 0-hydroxy aromatic aldehyde and a 2-aminopyridine |
| 08/08/1978 | US4105654 Liquid crystalline 4"-cyano- or 4"-nitrobenzylidene-4'-(N,N-dialkylamino)-1-aminoazabenzene dyes |
| 05/30/1978 | US4092478 Triphendioxazine triazinyl dyes having phosphonic acid groups |
| 09/27/1977 | US4051119 Azomethine dyes derived from an o-hydroxy aromatic aldehyde and a 2-aminopyridine |
| 08/30/1977 | US4045423 Monoazo dyes |
| 08/23/1977 | US4044036 Metal complexes of bis-azomethines from hydroxy-aldehydes and alkylene diamines |
| 07/05/1977 | US4033942 Chromium complex dye, including azo and azo methine dye compounds |
| 05/10/1977 | US4022770 Coloring |
| 03/15/1977 | US4012369 Monoazo chromiferous complex dyestuffs derived from naphthyl-azo-naphthalene, and process for their preparation |
| 03/15/1977 | US4012193 Bisazomethine dyes for metal-modified polyolefins |
| 10/19/1976 | US3987023 Azo pigment metal complexes |
| 08/31/1976 | US3978037 Polyamides |
| 05/11/1976 | US3956264 Basic azo dyestuffs having indolyl-methyleneamino substituent in the diazo component |
| 04/27/1976 | US3953419 Salts of stilbene-azo and stilbene-azoxy dyes and process for their preparation |
| 01/20/1976 | US3933786 Heterocyclic-azo-phenyl compounds containing a styrl group |