| Patents for C09B 35 - Disazo or polyazo dyes of the type a d b prepared by diazotising and coupling (1,497) |
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| 06/27/2001 | EP1110945A2 Azocompounds for the antemortem diagnosis of Alzheimer's disease and in vivo imaging and prevention of amyloid deposition |
| 06/26/2001 | US6251174 Ink composition containing at least two azo dyes |
| 06/13/2001 | EP0970148B1 Oligomeric azo dyes |
| 05/31/2001 | WO2000014530A8 Azo dye aqueous solution, preparation method and use |
| 05/31/2001 | WO1999024394A9 Compounds for the antemortem diagnosis of alzheimer's disease and in vivo imaging and prevention of amyloid deposition |
| 04/18/2001 | EP0968250B1 Soluble chromophores having improved solubilising groups |
| 04/12/2001 | WO2001026105A1 Method for digitally and optically storing data |
| 04/12/2001 | DE19947579A1 Verfahren zur digitalen optischen Datenspeicherung Method of digital optical data storage |
| 04/03/2001 | US6211347 Inks, color filters |
| 03/28/2001 | EP1086180A1 Trisazo and polyazo dyes and the mixtures thereof |
| 03/07/2001 | EP1081195A2 Process for the manufacture of pigment granules |
| 03/06/2001 | US6197223 Reacting diacidic monomer having formula h--a--h, comprising 1 to 100 mole % of light-absorbing monomer having a light absorption maximum between 300 nm and 1200 nm and 99-0 mole % of a non-light absorbing monomer with organic compound |
| 03/01/2001 | DE19941061A1 Verfahren zur Herstellung von Pigmentgranulaten Process for the preparation of pigment granules |
| 02/28/2001 | CN1285818A Compound for antemortem diagnosis of alzheimer's disease and i(IN VIVO) imaging and prevention of amyloid deposition |
| 02/20/2001 | US6191265 Thermomigrationfast azo dyes |
| 02/06/2001 | US6184362 Electrophotographic photoconductor, azo compounds for use in the same, and intermediates for producing the azo compounds |
| 01/16/2001 | US6174394 Method for thermostable and lightfast dichroic light polarizers |
| 01/02/2001 | US6168895 An electrographic toner contains an azo dye and a charge control agent |
| 12/26/2000 | US6165681 Black-pigmented structured high molecular weight material |
| 12/12/2000 | US6160101 Azo dyes, their preparation and their use |
| 11/28/2000 | US6153734 Oligomer azo colorants |
| 11/07/2000 | US6143062 Can produce a printed image with full depth of shade and are excellent in resistance to water, storage stability |
| 10/31/2000 | US6140478 Suitable for coloring or printing especially of paper and leather. |
| 10/31/2000 | US6140477 Near-infrared ray absorbing polyazo compound |
| 10/31/2000 | US6139997 Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus |
| 10/04/2000 | CN1268532A Compositions of azo lake pigment |
| 09/27/2000 | EP1038925A2 Azo lake pigment composition |
| 09/24/2000 | CA2301984A1 Azo lake pigment composition |
| 09/21/2000 | WO2000055259A1 Azoxy dyes and their cu complexes |
| 09/20/2000 | CN1266869A Azo dye, and its preparing process and use |
| 09/19/2000 | US6120944 An optical color filter comprising extremely fine organic pigment particles in multi-thin layers |
| 09/14/2000 | DE19911267A1 Azoxyfarbstoffe und deren Cu-Komplexe Azoxy dyes and their copper complexes |
| 09/13/2000 | EP1035171A1 Azodyestuffs, their production and use |
| 09/05/2000 | US6114512 Reacting a tetrazotized diamine compound with a coupling compound containing aminonaphthol-mono or di-sulfonic acid compound to form tetraazo dye |
| 08/29/2000 | CA2016539C Diarylide/disazo pyrazolone pigment compositions |
| 08/23/2000 | EP1028941A2 Compounds for the antemortem diagnosis of alzheimer's disease and in vivo imaging and prevention of amyloid deposition |
| 08/15/2000 | US6103435 Electrophotographic photoconductor, AZO compounds for use in the same, and intermediates for producing the AZO compounds |
| 08/02/2000 | CN1261908A Pigment dispersion containing C. I. pigment red 222 |
| 08/02/2000 | CN1261612A Thermal migration fixed ozo dye |
| 06/29/2000 | DE19858997A1 Thermomigrierechte Azofarbstoffe Thermomigration azo dyes |
| 06/28/2000 | EP1013717A1 Thermomigration-fast azo dyes |
| 06/06/2000 | US6071989 Process for preparing fine pigment dispersions |
| 05/10/2000 | CN1252420A Bis-azo dye |
| 05/03/2000 | CN1252135A Highly transparent, color-pigmented high molecular weight material |
| 04/19/2000 | EP0993490A1 Method for producing fine pigment dispersions |
| 04/19/2000 | EP0993489A1 Pigment dispersions containing c.i. pigment red 222 |
| 04/13/2000 | DE19846098A1 Disazofarbstoffe Disazo dyes |
| 04/12/2000 | EP0992544A1 Disazo-dyestuffs |
| 04/11/2000 | US6048968 Cationic azo dyes based on aminobenzoic acid |
| 04/05/2000 | EP0787783B1 Dichroic dyes, liquid-crystal composition containing the same, and liquid-crystal display element |
| 03/28/2000 | US6043349 Tetrakisazo dyes, their production and use |
| 03/16/2000 | WO2000014530A1 Azo dye aqueous solution, preparation method and use |
| 03/16/2000 | CA2342734A1 Azo dye aqueous solution, preparation method and use |
| 03/15/2000 | EP0985929A1 Aqueous solution with azo-dye, its manufacturing method and utilization |
| 03/14/2000 | US6036760 Applying to substrate liquid composition consisting of water as solvent; dye as alkylalkanolammmonium salt; colorfastness, water and rub-off resistance |
| 02/29/2000 | US6031083 Disazo dyestuffs |
| 02/23/2000 | EP0980405A1 Oligomer azo colorants |
| 02/23/2000 | CN1245516A Method for preparing light-absorbing polymeric compositions |
| 02/22/2000 | US6028178 Pigment for electrophotographic toners and developers |
| 01/26/2000 | EP0974620A1 Stilbenazo paper dye |
| 01/26/2000 | EP0974075A1 Black-pigmented structured high molecular weight material |
| 01/26/2000 | EP0974074A1 Highly transparent, colour-pigmented high molecular weight material |
| 01/24/2000 | CA2277533A1 Paper dye |
| 01/19/2000 | EP0971987A1 Ink composition containing at least two azo dyes |
| 01/12/2000 | EP0970148A1 Oligomeric azo dyes |
| 01/11/2000 | US6013775 High color intensity, colorfastness |
| 01/05/2000 | EP0968250A1 Soluble chromophores having improved solubilising groups |
| 01/04/2000 | US6011141 Acid polyazo dyes |
| 01/04/2000 | US6010567 Black-pigmented structured high molecular weight material |
| 12/22/1999 | CN1047606C Weak acid red dyestuff |
| 12/16/1999 | WO1999064520A1 Trisazo and polyazo dyes and the mixtures thereof |
| 12/14/1999 | US6001168 For pigmenting high molecular mass material, such as for inks, toners, coating materials, color filters and cosmetics, resins, caseins, cellulose ethers, celulose esters, polymers, polyolefins |
| 12/09/1999 | DE19825202A1 Tris- und Polyazofarbstoffe sowie ihre Mischungen Tris and polyazo and their mixtures |
| 12/07/1999 | US5997587 Azo dye mixtures, azo dyes, processes for their preparation, and their use |
| 11/24/1999 | CN1236379A Tetrakisazo dyes, their production and use |
| 11/11/1999 | DE19820400A1 Kationische Azofarbstoffe auf der Bais von Aminobenzoesäure Cationic azo dyes on the bais of aminobenzoic acid |
| 11/10/1999 | EP0955342A1 Cationic azo dyes derived from aminobenzoic acid |
| 11/09/1999 | US5981124 Electrophotographic photoconductor, azo compounds for use in the same, and intermediates for producing the azo compounds |
| 10/13/1999 | EP0948570A1 Method for preparing light-absorbing polymeric compositions |
| 10/12/1999 | US5965717 Useful intermediate for forming bisazomethines, disazoacetoacetanilides, disazopyrazolones, disazobenzimidazolones and disazonaphthols |
| 10/12/1999 | US5965715 Diazonating a diamine compound containing a cyclic group having a conjugated double bond and copling the obtained bisdiazonium compound with 2-alkoxy or hydroxy or acyloxy or phenyloxy naphthalene diamide or dicarboxylated derivative |
| 09/30/1999 | DE19913336A1 New near infrared absorbing polyazo compounds used e.g. in recording media, photoconductors, filters, transducers or screens |
| 09/28/1999 | US5958128 Method of manufacturing a disazo pigment and disazo pigment manufactured thereby |
| 09/14/1999 | US5952477 A water-soluble azo dye for use in polarizing film has high hydrothermoresistance and a high polarization degree and is excellent in optical characteristics |
| 09/08/1999 | EP0940726A1 Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus |
| 08/26/1999 | DE19808088A1 New tris(hydroxynaphthylazo) bridged triphenylamine pigments for electrophotographic charge generating layer |
| 08/24/1999 | CA2090835C Electrophotographic photoreceptor |
| 08/19/1999 | WO1999024394A3 Compounds for the antemortem diagnosis of alzheimer's disease and in vivo imaging and prevention of amyloid deposition |
| 07/28/1999 | EP0931109A1 Tetrakisazo dyes, their production and use |
| 07/14/1999 | EP0928815A1 Water-soluble disazo compounds, water-base ink composition, and colored object |
| 06/23/1999 | CN1220683A Water-soluble disazo compounds, water-base ink composition, and colored object |
| 05/20/1999 | WO1999024394A2 Compounds for the antemortem diagnosis of alzheimer's disease and in vivo imaging and prevention of amyloid deposition |
| 05/20/1999 | CA2309626A1 Compounds for the antemortem diagnosis of alzheimer's disease and in vivo imaging and prevention of amyloid deposition |
| 05/06/1999 | EP0634457B1 Azo dyes for color filter and process for producing color filter |
| 03/18/1999 | DE19740473A1 Oligomeric azo dyes for dyeing e.g. cotton, wool, polyamide and especially leather |
| 03/17/1999 | CN1211270A Bisazo compounds and process for the preparation thereof |
| 03/16/1999 | US5883234 Process for dyeing cellulosic materials with disazo dyestuffs |
| 03/16/1999 | US5883233 Disazo dyes from diaminostilbenedisulfonic acids |
| 02/25/1999 | DE19735769A1 Magenta azo dye used in ink-jet printing ink |
| 02/17/1999 | CN1208059A Substantive disazo dyes |