| 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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| 12/08/2005 | WO2005116143A1 Concentrated dye solution |
| 12/08/2005 | DE102004025443A1 Verfahren zur Herstellung einer Flüssigformulierung von Salzen sulfonsaurer Azofarbstoffe A process for preparing a liquid formulation of salts of sulfonated azo dyes |
| 12/01/2005 | WO2005113682A1 Method for producing liquid adjustments of basic azo dyes |
| 12/01/2005 | WO2005113681A1 Method for producing a liquid formulation of salts of sulphonic-acid azo dyes |
| 12/01/2005 | WO2005113680A1 Bridged monoazo dyes |
| 12/01/2005 | CA2560957A1 Bridged monoazo dyes |
| 10/26/2005 | CN1224645C Organic pigment with high transparency and hydrophobicity |
| 10/20/2005 | WO2005097912A1 Azo compound, ink composition, and colored object |
| 10/11/2005 | US6953846 mono- or disazo dyes; dyeing polyester granules yellow; thermostable and intense mass-colorations; improved colorfastness |
| 10/06/2005 | US20050218378 enhancing fluorescence intensity of organic pigments by mixing with surfactants; durability |
| 10/05/2005 | CN1678666A Method of producing coloured plastics or polymeric colour particles |
| 10/04/2005 | CA2241099C Bisazo compounds and process for the preparation thereof |
| 09/28/2005 | CN1675322A Printing process using specified azo compounds |
| 09/21/2005 | EP1577356A1 Ink composition containing a particular type of dye, and corresponding ink jet printing process. |
| 09/20/2005 | US6946550 Fluorescent pigments |
| 09/08/2005 | DE19629238B4 Basische Azoverbindungen, deren Herstellung und Verwendung Basic azo compounds, their preparation and use |
| 08/31/2005 | EP1567598A1 Method for producing a liquid formulation of salts of sulfoacidic azo dyes |
| 08/24/2005 | EP1341853B1 Trichromatic dyeing process |
| 08/24/2005 | CN1659239A Yellow anionic disazo dyes |
| 08/24/2005 | CN1659238A Anthraquinone-azo dyes |
| 08/23/2005 | US6933371 Colors materials comprising azo dyes having colorfastness, used for dyeing natural or synthetic fibers |
| 08/18/2005 | WO2005075573A1 Dye, ink, ink jet recording method, ink sheet, color toner and color filter |
| 08/18/2005 | US20050182247 A diazotized dye from an anthraquinone compound; reactive dyes by coloring a high molecular weight plastics or polymeric particles; color filters in liquid crystal displays; colorfastness; chemical intermediates |
| 08/18/2005 | US20050181292 Electrophotographic photosensitive member, and electrophotographic apparatus and process cartridge which make use of the same |
| 08/17/2005 | EP1563012A1 Trisazo dyes for inks for ink jet printing |
| 08/11/2005 | US20050172420 Based on diaminobenzanilides or, more specifically (aminobenzoylamino),(sulfo-),(methoxy)anilines; stable aqueous solutions;nonbleeding/colorfastness; excellent degrees of exhaustion with high colour strength; dyeing natural or synthetic materials, particularly, paper; neutral or greenish-yellow hues |
| 08/02/2005 | US6923856 Method of improving pigment fluorescence |
| 08/02/2005 | US6923855 Dye with a good yellow hue and colorfastness against light, moist heat and active gas |
| 07/27/2005 | CN1644626A Poly-azo compound, and polarization film having said compound |
| 06/29/2005 | CN1633473A Azo dyestuffs |
| 06/16/2005 | US20050127335 Liquid crystal displays, television; metallized dyes; light resistance |
| 06/16/2005 | US20050126442 Moist granulates of organic pigments, method for the production thereof, and use thereof |
| 06/16/2005 | US20050126435 Black water-based ink composition |
| 06/15/2005 | EP1542081A1 Electrophotographic photosensitive member, and electrophotographic apparatus and process cartridge which make use of the same |
| 06/14/2005 | US6906195 Heat resistance, colorfastness |
| 06/07/2005 | US6903197 Coupling a 1-hydroxy-3,6-sulfonic acid-naphthalene derivative with a nitroaniline comound to form nitro monoazo dye, reducing the resultant dye in aqueous solution |
| 06/07/2005 | US6902857 Method for forming electrophotographic image and electrographic device |
| 06/01/2005 | CN1621948A Electrophotographic photosensitive member, and electrophotographic apparatus and process cartridge which make use of the same |
| 05/26/2005 | US20050112487 electroconductive supports having layers containing azo compounds, charge transporting substance, acceptors and phenolic compounds, used in laser printer as well as high speed copiers |
| 05/25/2005 | EP1532196A1 Method of producing coloured plastics or polymeric colour particles |
| 04/19/2005 | CA2183636C Bis-azo compounds |
| 03/23/2005 | EP1516021A1 Printing process using specified azo compounds |
| 03/09/2005 | CN1592768A Fluorescent pigments |
| 03/02/2005 | EP1509574A1 Yellow anionic disazo dyes |
| 03/02/2005 | EP1509573A1 Anthraquinone-azo dyes |
| 02/01/2005 | US6849367 Photoconductive layer containing azo compound; electrostaticlatent image |
| 01/27/2005 | US20050019711 Capable of decoloring through off-resonant absorption |
| 01/26/2005 | CN1569969A Active yellow SHE, synthetic method and its composite active yellow dye |
| 01/26/2005 | CN1186396C Non-mutagenic azo type black direct color and its preparing method |
| 01/20/2005 | US20050014936 made by tetrazotizing a benzidine derivative and coupling with a diketone such as 1,3-cyclohexanedione heating and separating; special effect printing, security printing or in the optoelectronic field |
| 01/18/2005 | US6844428 For paper, cotton; waterproofing, colorfastness; ink jets |
| 12/28/2004 | US6835242 Thermally treating a liquid prepigment suspension in a microreactor |
| 12/15/2004 | EP1486539A2 Self-assembling dyes |
| 12/09/2004 | US20040244123 hair dye; bis(phenylazo imidazolium, triazolium, or pyridinium) amines or ethers, oxidation base, coupler, oxidizing agent, second dye; improved dye strength, colorfastness; wide range of colors |
| 11/25/2004 | US20040232394 Optical device |
| 11/24/2004 | EP1478698A1 Moist granulates of organic pigments, method for the production thereof, and use thereof |
| 10/27/2004 | CN1541207A Dyeing compsn. for kerationous fibres comprising particular dicationic diazo dye |
| 10/14/2004 | US20040204570 Coupling a 1-hydroxy-3,6-sulfonic acid-naphthalene derivative with a nitroaniline comound to form nitro monoazo dye, reducing the resultant dye in aqueous solution |
| 10/07/2004 | US20040195552 useful as powders or pellets for incorporation into a variety of thermoplastic resins; diacidic anthraquinone compounds |
| 08/25/2004 | EP1448717A1 New fluorescent pigments |
| 08/25/2004 | CN1163549C Azo dye, and its preparing process and use |
| 08/17/2004 | US6777242 Aqueous solution based on an azo dye, process for its manufacture and use thereof |
| 08/17/2004 | US6776930 Polymer bonded to dye |
| 08/12/2004 | US20040158050 Cinnamate derrivative for colors in inks and binding with aging resistance for colors |
| 08/12/2004 | US20040158049 Monoazo and disazo dyes with hydroxynaphthalene aminocarbonyl groups and aminotriazines and salts for liqids used in dyeing and printing, inks or ink jets |
| 08/11/2004 | CN1161655C Highly transparent, color-pigmented high molecular weight material |
| 07/22/2004 | US20040143107 2,2-bis(p-(o-(6-hydroxy-4-methyl-3-CN, CHON2 or CH2SO3H-pyridon-5-ylazo)phenylsulfonyloxy)phenyl)propane derivattives; improved heat resistance, migration characteristics and tinctorial strength |
| 07/15/2004 | US20040138436 Pigments for coloring ink jets on porous material for waterproofing and light fastness, with anthraquinone dyes. Process of coloring a porous material such as wood |
| 07/14/2004 | CN1513034A Basic mono-and bisazo compounds |
| 07/08/2004 | US20040129172 Dye with a good yellow hue and colorfastness against light, moist heat and active gas |
| 07/01/2004 | US20040123403 Disazo or azo dyes; mixture with ultraviolet radiation absorber |
| 06/23/2004 | CN1507472A Pyridone dyes, a process for their preparation and thier use in the production of coloured plastics or polymeric colour particles |
| 06/17/2004 | US20040111813 Use of disazo compounds |
| 06/10/2004 | WO2004048478A1 Method for producing a liquid formulation of salts of sulfoacidic azo dyes |
| 06/10/2004 | US20040110880 triphenylmethane salt forming dye |
| 06/08/2004 | USRE38531 Anionic dyes; very intense dark shades for leather |
| 06/03/2004 | WO2004046252A1 Trisazo dyes for inks for ink jet printing |
| 06/03/2004 | US20040103819 antibacterial colorant has at least one functional group and at least one antibacterial moiety bound thereto by an ester bond or an amide bond (antibacterial agent is a carbendazim or a silanetriol derivative and colorant is a dye or a pigment) |
| 06/02/2004 | EP1317512B1 Bisazo dyestuffs based on hydroxynaphthalene carboxylic acid |
| 05/12/2004 | EP1418200A2 Laser ray transmitting colored thermoplastic resin composition and method of laser welding |
| 05/12/2004 | CN1496388A Pyridone dyes, a process for their preparation and their use in production of colorued plastics or polymeric colour particles |
| 05/06/2004 | US20040083924 Azo dyestuffs |
| 04/27/2004 | US6727351 Azoxy dyes and their Cu complexes |
| 04/27/2004 | US6726762 Aggregate of primary particles wherein number of particles of not greater than 0.1 mu m in particle size is at least 95% of entire number of particles and number of particles of greater than 0.1 mu m in particle size is at most 5%; image recording |
| 04/08/2004 | DE3715066B4 Sulfonsäuregruppenfreie und sulfonsäuregruppenhaltige basische Azoverbindungen, Verfahren zur Herstellung der Verbindungen und ihre Verwendung Sulfonsäuregruppenfreie sulfonic acid and basic azo compounds, process for preparing the compounds and their use |
| 04/01/2004 | US20040063920 The dyes of formula (1) according to claim 1 and the copper complexes of dyes of formula (2) according to claim 9 or the mixtures of mono-copper complex with the bis-copper complex are excellently suitable for dyeing paper with good |
| 03/30/2004 | US6713614 Dimeric azo pyridone colorants |
| 03/24/2004 | EP1399425A1 Dyeing composition for keratinous fibres comprising a particular dicationic diazo dye |
| 03/18/2004 | US20040049863 Printing polyamide fibers using dioxazine, monoazo and disazo dye mixtures, to form multicolor shades |
| 03/17/2004 | EP1397434A1 Basic mono- and bisazo compounds |
| 03/17/2004 | CN1483063A Disazo dyes, and copper complexes thereof, for dyeing paper |
| 03/16/2004 | US6706863 Organic pigment with high transparency and hydrophobicity |
| 03/11/2004 | WO2004020505A1 Method of producing coloured plastics or polymeric colour particles |
| 03/11/2004 | CA2496559A1 Method of producing coloured plastics or polymeric colour particles |
| 03/03/2004 | EP1394575A1 Optical device |
| 03/03/2004 | CN1479771A Trichromatic dyeing process |
| 02/25/2004 | CN1478208A Optical device |
| 02/25/2004 | CN1478131A Use of disazo compound |
| 02/11/2004 | EP1388579A2 Ink, ink-jet-recording method and bis-azo compound |
| 02/11/2004 | CN1474860A Method of improving pigment fluorescence |