| Patents for C09B 45 - Complex metal compounds of azo dyes (1,560) |
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| 09/28/1999 | US5958650 Complex polymethine dyes and their use |
| 08/26/1999 | WO1999042906A1 Compounds, composition and use |
| 08/25/1999 | EP0937751A1 Metallized azo ether dyes and optical recording elements comprising the same |
| 06/23/1999 | EP0923622A1 1:2 iron azo-dyestuff complexes |
| 05/26/1999 | EP0824571B1 1:2 chromium complexes, their production and use |
| 04/08/1999 | WO1999016833A1 Bridged monoazo compounds |
| 03/17/1999 | EP0902064A1 Magenta dyes for ink-jet inks |
| 03/17/1999 | EP0901508A1 Mixtures of 2:1 aluminium complexes |
| 01/20/1999 | EP0891395A1 Trisazo dyes |
| 01/14/1999 | WO1999001513A1 Composition |
| 01/12/1999 | US5858613 Comprising recording layer containing azo metal complex dye; light resistance, sensitivity |
| 12/30/1998 | EP0887385A1 Novel metallized carbamoylazo dyes |
| 12/29/1998 | US5853431 1:2 Chromium complexes, their production and use |
| 12/23/1998 | WO1998058025A1 Method for dying aluminum oxide layers |
| 12/23/1998 | CA2294642A1 Method for dying aluminum oxide layers |
| 12/03/1998 | WO1998054264A1 1:2 chromium complex dyes, the production and use thereof |
| 12/01/1998 | US5843611 Monoazo metal compound, composition thereof, charge control agent, toner and powdery paint |
| 11/17/1998 | US5837761 Blend of polyvinyl chloride and metallized azo dye |
| 11/04/1998 | EP0875888A1 Optical recording medium and recording and/or reproduction method using the same |
| 10/13/1998 | US5821346 Azo group links a substituted 3-hydroxypyridine nucleus to a phenyl nucleus; useful in optical recording elements |
| 08/05/1998 | EP0856562A1 Recording liquid and novel metal complex compound contained therein |
| 07/02/1998 | WO1998028737A1 Complex polymethine dyes and their use |
| 07/02/1998 | CA2271079A1 Complex polymethine dyes and their use |
| 06/23/1998 | US5770341 Friction charge-providing member for positively-chargeable toner |
| 05/27/1998 | EP0844243A1 Sulfonamide compound and method for its production, metal chelate compound employing the sulfonamide compound, and optical recording medium employing the metal chelate compound |
| 03/24/1998 | US5731422 Dyeing plastics, lacquers |
| 02/25/1998 | EP0824571A1 1:2 chromium complexes, their production and use |
| 02/12/1998 | WO1998005717A1 1:2 iron azo-dyestuff complexes |
| 12/23/1997 | US5700296 Azo compound and a polarizing film containing the same |
| 12/16/1997 | US5698683 Mixed aluminium-heavy metal dyestuff complexes and a process for their preparation |
| 12/16/1997 | US5698682 Azo compounds and polarizing films using the compounds |
| 12/09/1997 | US5696242 Polyazo dyes containing the radical of a bis-coupling component, and process for their production |
| 11/20/1997 | WO1997043344A1 Mixtures of 2:1 aluminium complexes |
| 11/05/1997 | EP0477373B1 Metal chelate compound and optical recording medium comprising the same |
| 10/29/1997 | EP0656131B1 Electrostatic toner containing a metal complex colorant as charge stabiliser |
| 10/16/1997 | WO1997038052A1 Trisazo dyes |
| 10/15/1997 | CN1161990A Rare-earth dyeing assistant and preparation technology thereof |
| 10/09/1997 | DE19613315A1 Trisazofarbstoffe Trisazo dyes |
| 09/16/1997 | US5668259 Anionic dyes |
| 09/16/1997 | US5667534 Dye mixtures comprising 1:2 chromium complex dyes, and 1:2 chromium complex dyes |
| 09/12/1997 | WO1997032933A1 1:2 chromium complexes, their production and use |
| 08/19/1997 | US5659020 Tetrakisazo compound and a polarizing film containing the same |
| 07/16/1997 | CN1154382A Pigmented plastics compositions |
| 06/17/1997 | US5639809 Azo compounds and polarizing films using the compounds |
| 06/10/1997 | US5637678 Process for preparing azo dyes containing A2- (arylsulphonylamino)-pyrimidine group |
| 05/22/1997 | DE19616718A1 New bis-pyrazolyl-azo-phenyl compound dis:azo dyes |
| 04/23/1997 | EP0769530A2 Monoazo metal compound, composition thereof, charge control agent, toner and powdery paint |
| 04/09/1997 | EP0767219A2 Pigmented plastics compositions |
| 03/11/1997 | US5609796 Dye containing polarizing film |
| 02/25/1997 | US5606034 Process for the preparation of azo dyes |
| 02/11/1997 | US5602237 1:2 metal complexes of polyazo dyes having a sulpho substituted 1-hydroxy-2-naphthyl group as the coupling component and their use as dyestuffs |
| 01/22/1997 | EP0755052A2 Optical recording medium |
| 12/10/1996 | US5583207 Fibre-reactive monoazo copper complexes containing a halo substituted pyrimidine substituent |
| 11/20/1996 | CN1136056A Dye mixtures comprising 1:2 chromium complex dyes, and 1:2 chromium complex dyes |
| 09/10/1996 | US5554736 Azo dyes containing a 2-(arylsulphonylamino)pyrimidine radical |
| 08/21/1996 | EP0727465A2 An azo compound and a polarizing film containing the same |
| 08/06/1996 | US5542956 Process for dyeing or printing hydroxyl group containing fiber materials |
| 07/03/1996 | CN1125743A Water-soluble fluorescent dye |
| 07/02/1996 | US5532342 Optical recording |
| 06/26/1996 | EP0718374A1 1:2-Chromecomplex dyestuffs containing dyestuff-mixtures and 1:2-chromecomplex dyestuffs |
| 06/25/1996 | US5529872 Electrostatic toners containing a metal complex dye as charge stabilizer |
| 06/20/1996 | DE19546600A1 1:2 iron complex azo dyes giving level dyeing with good fastness |
| 06/19/1996 | EP0717403A1 Heterocyclylazoaniline dyes, heterocyclylazoaniline dye metal complexes and their use in optical elements |
| 05/07/1996 | US5514783 Azo dyes containing a 2-(arylsulphonylamino)-pyrimidine radical and metal complexes thereof |
| 04/23/1996 | US5510483 2-(arylsulphonylamino)-pyrimidine intermediates for Azo dyes |
| 04/02/1996 | US5503666 Dyestuffs and their use in inks for ink-jet printing processes |
| 03/20/1996 | EP0702061A2 Tetrakisazo compound and a polarizing film containing the same |
| 02/08/1996 | DE19525496A1 Azofarbstoffe und Zwischenprodukte, deren Herstellung und Verwendung Azo dyes and intermediates, their preparation and use |
| 01/16/1996 | US5484900 Metallized dyes for leather, wool, silk or synthetic substrates |
| 01/02/1996 | US5480977 Disazo dyes having aminobenzoylamino group |
| 12/27/1995 | EP0688830A1 Azo compounds and polarizing films using the compounds |
| 11/28/1995 | US5470959 For leather |
| 10/24/1995 | US5461155 Organic soluble metal-azo and metal-azomethine dyes |
| 10/18/1995 | EP0677557A1 Dyes and the use thereof in inks for ink jet printing process |
| 09/05/1995 | US5447823 Metal chelate compound and optical recording medium using the compound |
| 08/30/1995 | EP0669380A2 Process for the preparation of azo dyes |
| 08/29/1995 | US5446135 Water soluble |
| 08/09/1995 | EP0483382B1 Metal chelate compound and optical recording medium prepared therefrom |
| 07/26/1995 | EP0664493A1 Friction charge-providing member for positively-chargeable toner |
| 06/07/1995 | EP0656318A1 Zeolite A of controlled whiteness, manufacturing process and application |
| 06/07/1995 | EP0656131A1 Electrostatic toner containing a metal complex colorant as charge stabiliser. |
| 05/31/1995 | CN1103083A Copper complex azo compounds and dyeing methods using said compounds |
| 04/26/1995 | EP0649880A1 Metallized azo-ether dyes for optical recording layers |
| 04/19/1995 | EP0648814A1 Dye containing polarizing film |
| 03/28/1995 | US5401834 Asymmetrical 1:2 chromium and cobalt complexes of further substituted 6- or 7-amino-1-hydroxy-2-(nitro-phenylazo)-3-sulfonapthalenes |
| 01/04/1995 | EP0632105A1 Copper complex AZO compounds and dyeing methods using said compounds |
| 12/27/1994 | US5376151 Environmentally friendly method for producing lightfast black shades on natural and synthetic substrates |
| 11/23/1994 | CN1095389A Fibre-reactive moneazo copper complexes |
| 10/11/1994 | US5354512 Dye-containing polarizing film |
| 09/22/1994 | DE4407802A1 Azo compounds and intermediates, preparation thereof and use thereof |
| 09/07/1994 | EP0613928A1 1:2 chromium complex dyes |
| 06/14/1994 | US5320648 Process for dyeing or printing hydroxyl group containing fibre materials |
| 06/07/1994 | US5319075 Iron complexes and mixtures of iron complexes of disazo compounds having 1,3-dihydroxybenzene coupling component radicals, their use and metal-free disazo compounds useful as intermediates |
| 06/07/1994 | US5318856 Water-soluble azo dyes and polarizing films using the dyes |
| 05/26/1994 | DE4338201A1 Prepn. of mixed aluminium-heavy metal dyestuff/complexes |
| 05/24/1994 | US5314998 Organic solvent-soluble metal-azo and metal-azomethine dyes |
| 05/10/1994 | US5310509 Comprising a water soluble dichroic azo dye containing copper, nickel, iron or zinc; liquid crystal displays, optical instruments, filters |
| 04/20/1994 | EP0593324A1 Metal complexes of disazo dyes and polarizing films containing the same |
| 04/14/1994 | CA2106509A1 Disazo compounds and polarizing films containing the same |
| 04/06/1994 | EP0591016A1 Organic solvent-soluble metal-azo and metal-azomethine dyes |