| 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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| 02/05/2004 | US20040020404 Printing an image on a substrate comprising applying thereto a formulation comprising a liquid medium and a compound containing azo groups and metallized 1,8-dihydroxynaphthyl group |
| 02/04/2004 | EP1385912A1 Pyridone dyes, a process for their preparation and their use in the production of coloured plastics or polymeric colour particles |
| 01/28/2004 | EP1383837A1 Water-soluble salt of sulfonamides as colorants for the pigmenting of porous materials and for use in inkjet printing |
| 01/22/2004 | US20040011251 Comprises Pigment Yellow 12 and N,N-dimethylcocoamine as surfactant; for special effect or security printing |
| 01/22/2004 | US20040010866 Colors materials comprising azo dyes having colorfastness, used for dyeing natural or synthetic fibers |
| 01/15/2004 | US20040010058 Dimeric azo pyridone colorants |
| 01/02/2004 | EP1375610A1 Phase change inks containing dimeric azo pyridone colorants |
| 01/02/2004 | EP1375599A1 Dimeric azo pyridone colorants |
| 12/25/2003 | WO2003106572A1 Printing process using specified azo compounds |
| 12/18/2003 | WO2003104333A1 Yellow anionic disazo dyes |
| 12/18/2003 | CA2488406A1 Yellow anionic disazo dyes |
| 12/16/2003 | US6663703 Phase change inks containing dimeric azo pyridone colorants |
| 12/11/2003 | WO2003102083A1 Anthraquinone-azo dyes |
| 12/11/2003 | CA2483471A1 Anthraquinone-azo dyes |
| 12/10/2003 | EP1368431A1 Pyridone dyes, a process for their preparation and their use in the production of coloured plastics or polymeric colour particles |
| 12/03/2003 | EP1161499B1 Azoxy dyes and their cu complexes |
| 11/12/2003 | EP1360242A1 Azo dyestuffs |
| 11/12/2003 | CN1455803A Bisazo dyestuffs based on hydroxynaphthalene carboxylic acid |
| 10/09/2003 | US20030190540 Photoconductive layer containing azo compound; electrostaticlatent image |
| 10/02/2003 | US20030182733 Use of certain compounds, which are given in claim 1, or mixtures thereof for the coloring and tinting of keratin fibers, in particular of human hair, oxidative or permanent coloring agents or using a mixture of different developer |
| 09/24/2003 | EP1347016A1 Organic pigment with high transparency and hydrophobicity |
| 09/24/2003 | EP1345992A2 Disazo dyes, and copper complexes thereof, for dyeing paper |
| 09/10/2003 | EP1341853A1 Trichromatic dyeing process |
| 09/10/2003 | EP1341852A1 Use of disazo compounds |
| 09/04/2003 | US20030164118 Conditioning of organic pigments |
| 08/28/2003 | WO2003070831A1 Moist granulates of organic pigments, method for the production thereof, and use thereof |
| 08/13/2003 | EP1334156A1 Method of improving pigment fluorescence |
| 07/24/2003 | US20030138718 Method for forming electrophotographic image and electrographic device |
| 06/11/2003 | EP1317512A1 Bisazo dyestuffs based on hydroxynaphthalene carboxylic acid |
| 06/10/2003 | US6576748 Method for making dimeric azo pyridone colorants |
| 06/10/2003 | US6576747 Reacting alkylenediol and isatoic anhydride in presence of 1,4-diazabicyclo(2.2.2)octane and/or N,N,N*,N*-tetramethylenediamine; heating, decyclization, salt formation |
| 06/05/2003 | WO2003046086A1 New fluorescent pigments |
| 05/13/2003 | US6562121 Thermally treating a liquid prepigment suspension in a microreactor |
| 05/08/2003 | US20030084820 Finely divided pigments and coloring compositions |
| 04/22/2003 | US6551529 Dichromatic polarizing element and production method thereof |
| 04/17/2003 | US20030072896 Photo-induced alignment materials and method for LCD fabrication |
| 04/16/2003 | EP0882767B1 Bisazo compounds and process for the preparation thereof |
| 04/15/2003 | US6548647 Process for preparing azo colorants |
| 04/02/2003 | CN1104470C Tetrakisazo dyes, their production and use |
| 03/19/2003 | CN1404511A Organic pigment with high transparency and hydrophobicity |
| 03/12/2003 | EP1289480A1 Use of organic substances |
| 03/06/2003 | WO2002053649A3 Disazo dyes, and copper complexes thereof, for dyeing paper |
| 02/27/2003 | US20030040559 Organic pigment with high transparency and hydrophobicity |
| 02/26/2003 | EP0993490B1 Method for producing fine pigment dispersions |
| 02/26/2003 | EP0931109B1 Tetrakisazo dyes, their production and use |
| 02/05/2003 | CN1394917A Fine pigment and composition for colouring |
| 01/08/2003 | EP0974074B1 Highly transparent, colour-pigmented high molecular weight material |
| 01/08/2003 | CN1098316C Bisazo compounds and process for the preparation thereof |
| 01/02/2003 | EP1270680A2 Finely divided pigments and coloring compositions |
| 12/19/2002 | WO2002100834A1 Dyeing composition for keratinous fibres comprising a particular dicationic diazo dye |
| 12/12/2002 | WO2002099480A1 Optical device |
| 12/12/2002 | CA2449700A1 Optical device |
| 12/05/2002 | WO2002096994A1 Basic mono- and bisazo compounds |
| 11/26/2002 | US6485558 Process for the preparation of pigment granules |
| 11/14/2002 | WO2002090442A1 Pyridone dyes, a process for their preparation and their use in the production of coloured plastics or polymeric colour particles |
| 11/14/2002 | CA2445022A1 Pyridone dyes, a process for their preparation and their use in the production of coloured plastics or polymeric colour particles |
| 10/31/2002 | WO2002085988A1 Water-soluble salt of sulfonamides as colorants for the pigmenting of porous materials and for use in inkjet printing |
| 09/19/2002 | WO2002072707A1 Pyridone dyes, a process for their preparation and their use in the production of coloured plastics or polymeric colour particles |
| 09/19/2002 | CA2434837A1 Pyridone dyes, a process for their preparation and their use in the production of coloured plastics or polymeric colour particles |
| 09/18/2002 | EP1240645A1 Method for digitally and optically storing data |
| 08/21/2002 | CN1364830A Non-mutagenic azo type black direct color and its preparing method |
| 08/15/2002 | WO2002062902A1 Azo dyestuffs |
| 08/14/2002 | EP0974075B1 Black-pigmented structured high molecular weight material |
| 08/01/2002 | WO2002051943A8 Organic pigment with high transparency and hydrophobicity |
| 07/17/2002 | EP0971987B1 Ink composition containing at least two azo dyes |
| 07/11/2002 | WO2002053649A2 Disazo dyes, and copper complexes thereof, for dyeing paper |
| 07/11/2002 | CA2431043A1 Disazo dyes, and copper complexes thereof, for dyeing paper |
| 07/09/2002 | US6417178 Amyloid binding nitrogen-linked compounds for the antemortem diagnosis of alzheimer's disease, in vivo imaging and prevention of amyloid deposits |
| 07/04/2002 | WO2002051943A1 Organic pigment with high transparency and hydrophobicity |
| 07/04/2002 | US20020084447 Dichromatic polarizing element and production method thereof |
| 07/04/2002 | US20020083532 Anionic coloring agents to dye leather, paper, cardboard and textile substrates: mixtures of coloring agents including these new products, and substrates dyed using the above coloring agents |
| 07/04/2002 | CA2400877A1 Organic pigment with high transparency and hydrophobicity |
| 06/13/2002 | WO2002046318A1 Trichromatic dyeing process |
| 06/13/2002 | WO2002046316A1 Use of disazo compounds |
| 06/13/2002 | CA2426534A1 Use of disazo compounds |
| 06/12/2002 | EP0747449B1 Bisazo compound |
| 06/11/2002 | US6402828 Azo lake pigment composition |
| 06/06/2002 | WO2002044284A1 Trisazo dyes |
| 05/29/2002 | DE10059032A1 Trisazofarbstoffe Trisazo dyes |
| 05/23/2002 | WO2002040595A1 Method of improving pigment fluorescence |
| 05/23/2002 | CA2427904A1 Method of improving pigment fluorescence |
| 05/09/2002 | US20020055619 Process for preparing azo colorants |
| 04/11/2002 | DE10049200A1 Verfahren zur Herstellung von Azofarbmitteln A process for preparing azo colorants |
| 04/10/2002 | EP1195411A1 Process for the preparation of azo colourants |
| 03/28/2002 | DE10045430A1 Bisazofarbstoffe auf der Basis von Hydroxynaphthalincarbonsäure Bisazo dyes on the basis of hydroxynaphthalenecarboxylic |
| 03/21/2002 | WO2002022742A1 Bisazo dyestuffs based on hydroxynaphthalene carboxylic acid |
| 02/07/2002 | US20020014179 Thermally treating a liquid prepigment suspension in a microreactor |
| 01/10/2002 | DE10031558A1 Verfahren zur Konditionierung von organischen Pigmenten A process for conditioning organic pigments |
| 01/09/2002 | CN1330116A Conditioning of organic pigment |
| 01/02/2002 | EP1167461A2 Process for conditioning organic pigments |
| 12/12/2001 | EP1161499A1 Azoxy dyes and their cu complexes |
| 11/29/2001 | WO2001089461A1 Use of organic substances |
| 11/15/2001 | US20010041793 Coupling |
| 10/30/2001 | CA2116738C Organic photoconductive material and a photosensitive material for electronic photography using it |
| 10/17/2001 | EP1146088A1 Method of producing disazo pigment |
| 10/17/2001 | EP0700420B1 Thermostable and lightfast dichroic light polarizers |
| 10/17/2001 | CN1317517A Method for preparing tetrazo pigment |
| 10/16/2001 | US6303762 Coupling a tetrazo benzidines and a mixture of n-phenylacetoacetamides |
| 09/27/2001 | US20010023938 Polymer bonded to dye |
| 08/07/2001 | US6271356 Electrophotographic photoconductor, azo compounds for use in the same, and intermediates for producing the azo compounds |