| Patents for C09B 35 - Disazo or polyazo dyes of the type a d b prepared by diazotising and coupling (1,497) |
|---|
| 08/25/1993 | EP0556741A1 Novel trisazo dye and dye composition containing the same |
| 08/18/1993 | EP0555868A1 Novel trisazo dye and dye composition containing the same |
| 08/03/1993 | US5233028 Dicyanoimidazole compound derivative, and magenta toner, for colored resin, colored molded resin member and a color filter incorporating it |
| 08/03/1993 | US5233027 For cellulose-containing materials and leather |
| 06/30/1993 | EP0549530A1 Process for dyeing or printing hydroxyl group containing fiber materials |
| 06/30/1993 | EP0549529A1 Process for dyeing or printing of hydroxyl group-containing fiber materials |
| 06/15/1993 | US5219689 Electrophotographic photoreceptor comprising azo compound |
| 06/09/1993 | EP0545620A1 An azo compound and an electrophotographic photosensitive member having a photosentive layer comprising the azo compound |
| 06/09/1993 | EP0545619A1 An azo compound and electrophotographic photosensitive member having a photosensitive layer comprising the azo compound |
| 06/09/1993 | EP0545618A1 An azo compound and an electrophotographic photosensitive member having a photosensitive layer comprising the azo compound |
| 06/09/1993 | EP0545148A1 Indicators for determining the protonconcentration |
| 04/20/1993 | US5203876 Disazo dye for dyeing in blue shades |
| 03/31/1993 | EP0534903A1 Process for dyeing of paper with diazo dyes |
| 03/30/1993 | US5198318 Bisazo photoconductor for electrophotography |
| 03/16/1993 | US5194597 Diallyldialkylammonium halide catalyst for coupling |
| 03/03/1993 | EP0529849A1 Coupling process |
| 03/02/1993 | US5190839 Titanyl phthalocyanine, quinone pigment, disazo pigment |
| 02/10/1993 | CA2075608A1 Coupling process |
| 02/02/1993 | US5183881 Chemical intermediate for metallized dyes |
| 01/19/1993 | US5180817 Black dyes for cellulose fibers, paper, leather and inks |
| 01/12/1993 | US5178981 Good blud and red reproduction |
| 12/29/1992 | US5175258 Processes for the preparation of bisazo photogenerating pigments using an annealing step |
| 12/23/1992 | WO1992022610A1 Azo-dye derivatives exhibiting anti-hiv activity |
| 12/23/1992 | EP0518909A1 Water-insoluble azo dyes, their manufacture and use. |
| 12/16/1992 | EP0518376A1 Electrophotographic photosensitive member, an electrophotographic apparatus, an integrated elecrophotographic unit and a facsimile machine having the electrophotographic photosensitive member |
| 12/16/1992 | EP0518266A1 Trisazo compounds, method for dyeing fiber materials, paper or leather using the same and inks containing the same |
| 12/15/1992 | US5171848 Branched chain fatty aliphatic ammonium salts |
| 12/01/1992 | US5168026 Bis-azo compound and electrophotographic photosensitive member with a light receiving layer containing said bis-azo compound |
| 11/12/1992 | DE4214025A1 Polarisierender film und dichroitische farbstoffe hierfuer Polarizing Film and dichroic dyes here for |
| 11/10/1992 | US5162181 Electrophotographic photoreceptor having a bisazo photoreceptive layer |
| 09/03/1992 | WO1992014791A1 Azo dyes having a diazo component from the aminobenzophenone series, as well as bisulphonated pyridone compounds |
| 08/27/1992 | DE4105257A1 Azofarbstoffe mit einer diazokomponente, die sich von einer aminobenzophenonsulfonsaeure ableitet Azo dyes with a diazo component derived from a aminobenzophenonsulfonsaeure |
| 08/25/1992 | US5142030 Improved solubility, noncarcinogenic |
| 08/18/1992 | US5139910 Photosensitivity, dark decay properties, stability |
| 08/12/1992 | EP0498217A1 Dyes for polarising films and films made thereof |
| 08/12/1992 | EP0498104A1 Azo dimer and trimer fugitive tints |
| 08/11/1992 | US5137794 Electrophotographic photosensitive member, electrophotographic apparatus and facsimile which employ the same |
| 07/22/1992 | EP0495110A1 Novel bisazo compound and electrophotographic photoreceptor having photoreceiving layer containing said bisazo compound |
| 07/21/1992 | US5132189 Photoconductor for electrophotography |
| 07/01/1992 | EP0492911A1 Thermal transfer printing |
| 06/17/1992 | EP0490253A2 Magenta toner for developing electrostatic images |
| 06/02/1992 | US5118737 Water-soluble dye |
| 06/02/1992 | CA1302403C Amyloidosis and alzheimer's disease diagnostic assay and reagents therefor |
| 05/27/1992 | EP0487050A1 Electrophotographic photosensitive member, and electrophotographic apparatus and facsimile machine employing the same |
| 05/14/1992 | DE4035632A1 New water soluble tris:azo dyestuff cpds. used for dyeing leather - are 2(4-(4-azo-anilino)-3-sulpho-phenyl-azo)-7-azo-1-naphthol-3-sulphonic acid coupled with 1,3-di:aminobenzene-4-sulphonic acid, etc. |
| 05/05/1992 | US5110917 Black shades on leather |
| 04/28/1992 | US5108460 Having at least one polyoxyalkylene substituents, useful with fibers like polyamides cotton, wool, silk and nylon |
| 04/21/1992 | US5106712 Sensitivity, durability |
| 04/20/1992 | CA2053639A1 Azo dimer and trimer fugitive tints |
| 04/14/1992 | US5104979 Leather; light- and wet-fastness |
| 03/17/1992 | US5097029 Process for preparing 2,3-dihydro-1,3-dialkyl-2,3-dialkyl perimidines and N,N-'-dialkyl-1,8-naphthalene diamines |
| 03/17/1992 | US5097022 Bisazo pigments for use in electrophotographic photoconductors |
| 03/17/1992 | US5096794 Bisazo photoconductor for electrophotography |
| 03/11/1992 | EP0474039A1 Ortho-aminoazo compounds |
| 03/03/1992 | US5093218 Sensitive at long wavelengths, benz(a)carbazole ring |
| 02/19/1992 | EP0471233A1 Water-soluble trisazo dyes |
| 02/11/1992 | US5087541 Bisazo photoconductor for electrophotography |
| 01/30/1992 | DE4124437A1 Water soluble anionic poly:azo dyestuff cpds. mfr. for dyeing leather - by tetrazotising di:amino:di:phenylamine sulphonic acid, coupling with amino:naphthol and then e.g. phenol etc. |
| 01/14/1992 | US5081233 Bisazo compounds and electrophotographic photoconductors comprising the bisazo compounds |
| 12/31/1991 | US5077335 Optically clear silicone compositions |
| 12/31/1991 | US5077161 Imaging members with bichromophoric bisazo perylene photoconductive materials |
| 12/26/1991 | WO1991019768A1 Novel bisazo compound and electrophotographic photoreceptor having photoreceiving layer containing said bisazo compound |
| 12/17/1991 | US5073465 High sensitivity and durability |
| 12/17/1991 | US5073173 Oxidative hair dye mixture |
| 12/11/1991 | EP0460504A1 Dichroic azo dyes |
| 12/04/1991 | EP0459259A1 Disazo dyes |
| 11/27/1991 | EP0458346A1 Electrophotographic photosensitive member, and electrophotographic apparatus and facsimile employing the same |
| 11/26/1991 | US5068319 Disazo dyes for printing inks for paper, fibers or films |
| 11/06/1991 | EP0455194A1 Method of preparing a disazo pigment |
| 10/22/1991 | US5059683 Dyeing paper, textiles, leather |
| 10/16/1991 | EP0451788A1 Electrophotographic photosensitive member |
| 10/08/1991 | US5055367 Imaging members with bichromophoric bisazo perinone photoconductive materials |
| 10/02/1991 | EP0449650A2 Azo dyes having improved solubility in organic solvent |
| 10/02/1991 | EP0449250A1 Trisazo compounds and use thereof |
| 10/01/1991 | CA1289945C Intermediates |
| 09/19/1991 | WO1991013941A1 Water-insoluble azo dyes, their manufacture and use |
| 09/17/1991 | US5049238 Naphthol dyes |
| 09/12/1991 | DE4007535A1 Wasserunloesliche azofarbmittel, ihre herstellung und verwendung Water-insoluble azo colorants, their production and use |
| 09/10/1991 | US5047590 Starting materials or chemical intermediates for preparing photoconductive materials for electrography |
| 08/20/1991 | US5041349 Durability, sensitivity |
| 08/14/1991 | EP0441255A2 Dicyanoimidazole compound derivative, magenta toner, colored resin, colored molded resin member and color filter incorporating it |
| 08/13/1991 | US5039511 Amyloidosis and alzheimer's disease diagnostic assay and reagents therefor |
| 08/06/1991 | US5037964 Dyes For Paper And Textiles |
| 06/19/1991 | EP0432735A2 Liquid crystal coupled dichroic dyes |
| 06/04/1991 | US5021090 Inks modified by primary amines also containing a diazo dye; increased strength, gloss transparency, coatings. |
| 05/28/1991 | US5019474 Containing tetrakisazo charge generating compound; high sensitivity, durability |
| 04/16/1991 | US5008099 Radioactive iodine-labeled amyloid binding azo compounds |
| 04/16/1991 | US5007942 Uniform polarizing performance of the filter over the entire spectral range |
| 04/09/1991 | US5006128 Substituted 2,4-di[4'-(disulfonaphth-2"-ylazo)phenylamino]-6-amino-1,3,5-triazines |
| 03/19/1991 | US5001226 Brown dyes for printing and dyeing paper, leather and textile substrates; color- and washfastness |
| 03/12/1991 | US4999269 Electroconductive Support with a Photosensitive Layer Containing an Azo Pigment |
| 02/19/1991 | US4994338 Electrophotographic photosensitive layer containing azo pigment with coupler residue having phenolic hydroxyl group |
| 02/05/1991 | US4990421 Electrophotographic recording material containing a trisazo dye |
| 01/29/1991 | US4988805 Naphtholazophenylazoaminonaphthol compounds and copper complexes thereof |
| 01/29/1991 | US4988594 Diazo photoconductor for electrophotography |
| 01/22/1991 | US4987221 Bisdiazonium salts of 4,4'-diamino-3,3'-dialkoxybiphenyls and a process for their preparation |
| 01/16/1991 | EP0408192A1 Solvent soluble dye |
| 01/15/1991 | US4985324 Electrophotographic photoreceptor |
| 01/09/1991 | EP0406812A2 Process for the preparation of NiNi-dialkyl-1,8-naphthalene diamine |
| 01/08/1991 | US4983480 Charge generating compounds |