| Patents for C09B 45 - Complex metal compounds of azo dyes (1,560) |
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| 03/29/1994 | US5298608 Metal chelate of a monoazo compound and optical recording medium using it |
| 03/15/1994 | CA1327792C Polyazo dyes and intermediates therefor |
| 03/09/1994 | CA2103972A1 Organic soluble metal-azo and metal azpmethine dyes |
| 03/03/1994 | WO1994004962A1 Electrostatic toner containing a metal complex colorant as charge stabiliser |
| 03/03/1994 | CA2140279A1 Electrostatic toner containing a metal complex colorant as charge stabiliser |
| 02/24/1994 | DE4227743A1 Elektrostatische Toner, enthaltend einen Metallkomplexfarbstoff als Ladungsstabilisator An electrostatic toner containing a metal complex dye as a charge stabilizer |
| 02/01/1994 | US5283325 1:2 chromium and cobalt complexes of monoazo compounds having further unsubstituted or substituted nitro-2-hydroxyphenyl diazo component radicals and 6- or 7-acyl-amino-1-hydroxy-3-sulfonaphthalene coupling component radicals |
| 01/05/1994 | DE4320166A1 Asymmetrical 1:2 metal complex azo dyes |
| 12/29/1993 | EP0576036A2 Optical information recording element using AZO dyes |
| 12/21/1993 | US5272047 Optical information recording medium using azo dyes |
| 12/14/1993 | US5270455 Polyazo dyes containing resorcinol as middle component and metal complexes thereof |
| 12/08/1993 | EP0572973A2 Metal chelate compound and optical recording medium using the compound |
| 10/05/1993 | US5250671 Unsymmetrical 1:2 chromium complex dyestuffs |
| 08/03/1993 | US5233027 For cellulose-containing materials and leather |
| 07/27/1993 | US5231173 Disazo metal chelate compounds for optical recording media |
| 07/20/1993 | US5229502 For dyeing natural and synthetic polyamides |
| 07/07/1993 | EP0549935A2 Polyazo dyes with a diazo component of the aminobenzophenom type |
| 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 |
| 06/30/1993 | EP0549342A2 Water-soluble azo dyes and polarizing films using the dyes |
| 06/23/1993 | EP0547431A1 Liquid preparations of a 2:1-chrome complex dyestuff |
| 06/19/1993 | CA2084613A1 Liquid preparations of a 2:1 chromium complex dye |
| 05/11/1993 | US5209832 Determining end point voltametrically |
| 05/04/1993 | CA1317077C Dye-containing light-polarizing film |
| 04/20/1993 | US5204453 Process for the preparation of 1:2 metal complex azo compounds by carrying out diazotization and coupling in the presence of a metal donor |
| 03/31/1993 | EP0342241B1 Dye-containing polarizing film |
| 03/30/1993 | CA1315275C Process for the reduction of the ionogenic heavy metal content in the preparation of metal complex dyestuffs |
| 03/24/1993 | EP0532994A1 Asymmetric 1:2-chromium complex dyestuffs |
| 03/23/1993 | US5196518 Dizonium slat coupled with hydroxy compound |
| 03/11/1993 | DE4228572A1 New 2:1 aluminium complex azo dyes with no water solubilising gps. |
| 03/03/1993 | EP0530106A1 Dye-containing polarizing film |
| 03/01/1993 | CA2076560A1 Dye-containing polarizing film |
| 01/19/1993 | US5180705 Transfer imaging using metal-azo and metal-azomethine dyes |
| 11/24/1992 | US5166326 Polymerizable metal-azo and metal-azomethine dyes |
| 11/03/1992 | US5160504 Colorfastness to rubbing and light, metal-tanned leather |
| 10/14/1992 | EP0508573A1 Transfer imaging using metal-azo and metal-azomethine dyes |
| 10/06/1992 | US5153140 Computerized recording, storage and comparison of absorption spectra of reaction products and intermediates for sondensation and metallization reactions |
| 09/16/1992 | EP0503780A1 Polymerizable metal-azo and metal-azomethine dyes |
| 09/12/1992 | CA2061356A1 Polymerizable metal-azo and metal-azomethine dyes |
| 09/12/1992 | CA2060671A1 Transfer imaging using metal-azo and metal-azomethine dyes |
| 06/24/1992 | EP0491660A1 Process for the preparation of metal complex dyestuffs |
| 06/23/1992 | US5123930 1:2 chromium and cobalt complexes of monoazo compounds for drying porous oxide layers on aluminum and aluminum alloy substrates |
| 05/06/1992 | EP0483382A1 Metal chelate compound and optical recording medium prepared therefrom |
| 04/21/1992 | US5106958 1:1 copper complexes of further unsubstituted or substituted 6-(2'-chloro-4'-substituted amino-1,3,5- triazin-6'-ylamino)-1-hydroxy-2-(2'-hydroxy-5'-sulfophenylazo)-3- sulfonaphthalenes |
| 04/14/1992 | US5104979 Leather; light- and wet-fastness |
| 04/01/1992 | EP0477373A1 Metal chelate compound and optical recording medium comprising the same |
| 03/25/1992 | EP0476086A1 Orange filter dye and filter element for color filter arrays |
| 03/10/1992 | US5095100 Metal complex dyes and preparation thereof |
| 12/04/1991 | EP0459259A1 Disazo dyes |
| 11/18/1991 | WO1991018057A1 Metal chelate compound and optical recording medium prepared therefrom |
| 11/18/1991 | CA2063611A1 Metal chelate compound and optical recording medium using it |
| 10/22/1991 | US5059683 Dyeing paper, textiles, leather |
| 10/09/1991 | EP0450421A2 Chrome-complexed dyes |
| 10/08/1991 | CA1290104C Process for the trichromatic dyeing of leather |
| 09/20/1991 | WO1991014740A1 Metal chelate compound and optical recording medium comprising the same |
| 09/20/1991 | CA2057864A1 Metal chelate compound and optical recording medium using it |
| 09/19/1991 | WO1991013942A1 Orange filter dye and filter element for color filter arrays |
| 06/25/1991 | US5026830 Process for the preparation of azo dyes by carrying out coupling in the presence of an alkali metal chloride and ammonium chloride |
| 06/18/1991 | US5025041 Pearlescent coating compositions |
| 06/05/1991 | EP0430880A2 Process for the preparation of concentrated 1:2 metal complex dye preparations |
| 05/28/1991 | US5019132 Moist filter cake of metal-free azo or azomethine intermediate, metallizing with metal salt to aqueous slurry of metal complx dye, diluting |
| 05/14/1991 | US5015732 Copper monoazo dyes with triazine groups for reaction with cellulose or polyamide fibers |
| 04/17/1991 | EP0423071A1 Polyazodyes |
| 04/16/1991 | US5008379 Chromium complexes of sulfo group containing disazo compounds having a resorcinol biscoupling component radical |
| 04/09/1991 | US5006644 Dyeing and printing paper, leather, cellulosic textiles |
| 03/26/1991 | US5003051 Process for the preparation of metallizable monoazo dyes in the presence of ketones |
| 03/19/1991 | US5001226 Brown dyes for printing and dyeing paper, leather and textile substrates; color- and washfastness |
| 03/05/1991 | US4997917 Textile dyes |
| 02/26/1991 | US4996303 Preparation of 1:2 metal complex dyes by coupling in the presence of a metal donor in an inert gas atmosphere |
| 02/19/1991 | US4994111 Water-based; colorfastness; storage stability; adequate substantivity on celluloses |
| 02/05/1991 | US4990598 Colorfastness |
| 01/29/1991 | US4988805 Naphtholazophenylazoaminonaphthol compounds and copper complexes thereof |
| 01/29/1991 | US4988804 Polyazo dyes obtained by successive coupling of H-acid and two further anilinic diazo components on resorcinol or the like |
| 12/19/1990 | EP0403432A2 Pearlescent coating compositions |
| 12/11/1990 | US4977249 For optical filters or shields |
| 10/31/1990 | EP0395587A2 Method for controlling and optimizing industrial processes for manufacturing dyes |
| 10/16/1990 | US4963660 Process for the reduction of heavy metal ions in excess from aqueous synthesis solutions of water soluble heavy metal complex dyestuffs |
| 10/09/1990 | US4962191 1:2 chromium or cobalt complex axo dyes containing at least one 2-aryl-4-amino-6-hydroxypyrimidine radical |
| 10/02/1990 | US4960870 Dyeing wool, polyamides; fiber reactive dyes |
| 09/05/1990 | EP0385939A1 Process for the preparation of metallisable azodyes |
| 09/04/1990 | US4954133 Mixtures of a 1:1 copper or nickel complex of a stilbene-azo or stilbene-azoxy compound having two 4,4'-(2,2'-disulfostilbenylene) radicals and a 1:1 copper or nickel complex of a stilbene-azo or stilbene-azoxy compound having one such radical |
| 08/29/1990 | EP0384893A1 Process for the preparation of asymmetrical 1,2-metal complex dyestuffs |
| 06/12/1990 | US4933437 Preparation of 1:2 chromium complex azo dyes asymmetrically substituted with solubilizing groups |
| 06/05/1990 | US4931550 Lithium salt of copper complex monoazo dye |
| 05/08/1990 | US4923973 Leather; colorfastness |
| 03/07/1990 | EP0357554A2 Complex metal compounds |
| 03/07/1990 | EP0356851A2 Process for the preparation of solutions of 1:2-chromium complex azo dyes |
| 02/28/1990 | EP0356393A2 Process for the preparation of metallisable monoazo dyes |
| 02/28/1990 | EP0355601A2 Polyazo dyes and their intermediate products |
| 02/27/1990 | US4904767 Asymmetric 1:2-chrome complexes of benzene-azo-naphthalene/naphthalene-azo-naphthalene acid dyes for leather |
| 01/09/1990 | US4892584 Water soluble infrared absorbing dyes and ink-jet inks containing them |
| 11/23/1989 | EP0342241A1 Dye-containing polarizing film |
| 11/21/1989 | CA1263001A1 Process for dyeing natural or synthetic polyamide fibre materials with 1:1 metal complex dyes |
| 11/08/1989 | EP0341214A2 Basic 6-hydroxypyrid-2-one compounds |
| 10/17/1989 | US4874849 For dyeing wool, polyamides, leather orange or brown |
| 10/17/1989 | US4874848 Asymmetrical polyazo chromium complex dyes comprising resorcinol as a coupling component |
| 09/12/1989 | US4866162 Fiber-reactive fluoro-triazine containing dyestuff |
| 08/16/1989 | EP0141416B1 Fibre-reactive chromium complexes, their preparation and their use |
| 07/11/1989 | US4847365 Metal complexes of substituted 4-(2-carboxy-phenylazo-5-pyrazolones |
| 06/27/1989 | US4843152 Printing, dyeing |