| Patents for C09B 33 - Disazo or polyazo dyes of the types a k b, a b k c, or the like, prepared by diazotising and coupling (1,032) |
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| 07/14/2004 | EP1436354A2 Process for making green pigment compositions useful for colour filters and lcd's |
| 07/13/2004 | US6762287 Storage stable concentrates; red shades; dyeing paper, leather and glass fibers |
| 07/08/2004 | US20040129178 Contains no additional light stabilizer, therefore, side effects caused by the addition of a light stabilizer, such as precipitate generation, may be prevented |
| 07/08/2004 | DE4039590B4 Pigmentverbindung, Verfahren zu deren Herstellung und deren Verwendung zum Färben von Kunststoffen Pigment compound, to processes for their preparation and their use for dyeing of plastics |
| 07/01/2004 | US20040123403 Disazo or azo dyes; mixture with ultraviolet radiation absorber |
| 06/30/2004 | CN1508191A Light-resistant clouring agent and composition containing same |
| 06/29/2004 | US6756488 Improved compound which presents high density and neutral black color having no other color tint, excellent water resistance and image storability (light resistance, dark heat storability and ozone resistance) |
| 06/29/2004 | US6756486 Laked disazo yellow pigments having desirable green shade, heat stability, good strength, bleed resistance, migration resistance, and low or no toxicity |
| 06/16/2004 | CN1153817C High light-fastness yellow dye combination |
| 06/10/2004 | US20040107518 Mass coloration of substrates, as colorants in electrophotographic toners and developers, in powders and powder coating materials, in ink-jet inks and in cosmetic compositions; colorfastnessfast; heat and chemical resistance; azo-methine dyes |
| 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) |
| 06/01/2004 | US6743901 Preparation of liquid formulations of basic azo dyes |
| 05/12/2004 | CN1496388A Pyridone dyes, a process for their preparation and their use in production of colorued plastics or polymeric colour particles |
| 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 |
| 04/14/2004 | EP1408091A1 Disazo compound, dye, ink and ink-jet recording method |
| 03/31/2004 | EP1084201B1 Use of lithium salts of anionic dyes to enhance their light-fastness |
| 03/11/2004 | US20040049020 Especially for dyeing paper; red dyeings with good fastness |
| 03/04/2004 | US20040040466 Mixture containing trisazo dyes |
| 03/02/2004 | US6699976 Covering region of from 500 to 580 nm and particularly excellent in initial polarization ability |
| 02/26/2004 | WO2004016699A1 Ink for inkjet recording, ink set for inkjet recording and inkjet recording method |
| 02/26/2004 | US20040039182 Mono-and bis-hydrazone pigments |
| 02/25/2004 | CN1478130A Polymeric bis-acetoacetanilide azo colorants |
| 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 | CN1473153A Hetero-anellated ortho-aminophenols |
| 01/08/2004 | DE10227527A1 Verfahren zur Herstellung von Disazopigmenten A process for preparing disazo pigments |
| 12/31/2003 | WO2004000947A1 Method for producing disazo pigments |
| 12/25/2003 | WO2003106572A1 Printing process using specified azo compounds |
| 12/18/2003 | WO2003104332A1 Compositions and inks containing disazo dyes |
| 12/17/2003 | CN1131283C N,N'-substituted anilino aromatic dime thylamide azo color series |
| 12/11/2003 | US20030226221 Ink jet recording using disazo 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 |
| 11/20/2003 | US20030213405 A dye containing triazine ring and an azo group substituted heterocyclic ring, used for image forming |
| 11/19/2003 | EP1117743B1 Composition containing two different disazo dyestuffs useful for ink jet recording |
| 11/11/2003 | US6646111 Dimeric azo pyridone colorants |
| 10/16/2003 | US20030195342 Compound, dye, ink and ink-jet recording method |
| 10/15/2003 | EP1352928A1 Process for the manufacture of liquid preparations of basic azo dyes |
| 10/14/2003 | US6632932 High- purity trisazo compound with excellent light resistance that is useful as a coloring matter for a black aqueous ink for ink jet recording and the like. Thus, the present invention provides a trisazo compound represented by the |
| 10/11/2003 | CA2424959A1 Preparation of liquid formulations of basic azo dyes |
| 10/02/2003 | US20030187236 Photostability; waterproofing; diazotization an aniline compound |
| 09/25/2003 | US20030177591 Method of dyeing keratin-containing fibers |
| 09/17/2003 | CN1121454C Strong green shade yellow disazo pigment |
| 09/04/2003 | US20030164118 Conditioning of organic pigments |
| 08/27/2003 | EP1337591A2 Polymeric bis-acetoacetanilide azo colorants |
| 08/26/2003 | US6610132 Compositions containing a liquid medium and an azo dye |
| 08/20/2003 | EP1335905A1 Hetero-anellated ortho-aminophenols and their use as dye components |
| 08/12/2003 | US6605144 High light- fastness yellow composition |
| 07/24/2003 | WO2003035770A3 Process for making green pigment compositions useful for colour filters and lcd's |
| 07/09/2003 | EP1325085A1 Cationic imidazole azo dyes |
| 07/09/2003 | EP1324741A1 Method of dyeing keratin-containing fibres |
| 06/24/2003 | CA2100861C Ion-sensitive dyes |
| 06/10/2003 | US6576748 Method for making dimeric azo pyridone colorants |
| 05/29/2003 | US20030098447 Polyazo compound or salt thereof and dye-based polarization film containing the same |
| 05/28/2003 | EP0882705B1 Bis(aminocarbonylnaphthol) derivative |
| 05/14/2003 | EP1165695B1 High light-fastness yellow dye composition |
| 05/13/2003 | US6562121 Thermally treating a liquid prepigment suspension in a microreactor |
| 05/08/2003 | US20030084820 Finely divided pigments and coloring compositions |
| 05/02/2003 | EP1306411A1 Novel trisazo compound |
| 05/01/2003 | WO2003035770A2 Process for making green pigment compositions useful for colour filters and lcd's |
| 05/01/2003 | CA2458687A1 Process for making green pigment compositions useful for colour filters and lcd's |
| 04/30/2003 | CN1414043A Black water ink composition, ink jet recording method using it and recording article |
| 04/22/2003 | US6551390 Composition containing two different disazodyestuffs useful for ink jet recording |
| 04/15/2003 | US6548649 Compound, dye, ink and ink-jet recording method |
| 03/12/2003 | CN1401631A Bis (amino carbonylnaphthol) derivs. |
| 03/12/2003 | CN1102925C Bis-(aminocarbonylnaphthol) derivatives |
| 02/26/2003 | EP0993490B1 Method for producing fine pigment dispersions |
| 02/06/2003 | WO2002044282A3 Aromatic bis-acetoacetamide intermediates |
| 02/05/2003 | CN1394917A Fine pigment and composition for colouring |
| 01/16/2003 | WO2002044283A3 Polymeric bis-acetoacetanilide azo colorants |
| 01/08/2003 | EP1272567A2 Mono- and bis-hydrazone pigments |
| 01/08/2003 | EP0974074B1 Highly transparent, colour-pigmented high molecular weight material |
| 01/07/2003 | US6504045 Crystal polymorphs of a yellow disazo colorant, and their preparation |
| 01/02/2003 | EP1270680A2 Finely divided pigments and coloring compositions |
| 12/31/2002 | US6500935 Aromatic bis-acetoacetamide intermediates |
| 12/18/2002 | EP1104444B1 Strong green-shade yellow disazo pigment |
| 11/21/2002 | US20020170126 Compound, dye, ink and ink-jet recording method |
| 11/12/2002 | US6479648 Polymeric bis-acetoacetanilide azo colorants |
| 10/31/2002 | US20020157194 Polymeric bis-acetoacetanilide azo colorants |
| 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 | WO2001074950A3 Mono- and bis-hydrazone pigments |
| 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 |
| 09/04/2002 | CN1090205C Condensed ring azo compound and its producing method and use |
| 09/04/2002 | CN1090204C Multifunctional cyanate ester and epoxy blends |
| 08/20/2002 | US6437104 Diazotization of aromatic amine, azo coupling to form an azocarboxylic acid or azodicarboxylic acid, formation of an azocarbonyl chloride or azodicarbonyl dichloride and condensation with aromatic diamine |
| 08/20/2002 | US6436182 Aqueous or organic solvent readily dispersible filtercakes; high pressure filter pressing without addition of filtration aides such as nonionic surfactants |
| 08/14/2002 | EP0974075B1 Black-pigmented structured high molecular weight material |
| 08/13/2002 | US6432185 Ink jets and acid dyes for paper with storage stability |
| 08/08/2002 | US20020107371 Reacting said intermediate with an amine-containing compound to form a disazo dye |
| 08/07/2002 | EP1229083A2 DIsazo compound, dye, ink and ink-jet recording method |
| 07/17/2002 | EP0971987B1 Ink composition containing at least two azo dyes |
| 06/06/2002 | WO2002044283A2 Polymeric bis-acetoacetanilide azo colorants |
| 06/06/2002 | WO2002044282A2 Aromatic bis-acetoacetamide intermediates |
| 06/04/2002 | US6399752 Photostability; heat resistance; waterproofing |
| 05/30/2002 | US20020065402 Contacting solvent selected from dimethylformamide, N-methylpyrrolidone, dimethyl sulfoxide, C4- C20 alcohol, 1,2-dichlorobenzene, pyridine, and nitrobenzene or mixture with water with disazo colorant |
| 05/28/2002 | US6395885 Use of lithium salts of anionic dyes to enhance their light-fastness |
| 05/16/2002 | WO2002038549A1 Hetero-anellated ortho-aminophenols and their use as dye components |
| 05/16/2002 | US20020058794 Preparation of disazo condensation pigments in microreactors |
| 04/18/2002 | WO2002031056A1 Cationic imidazole azo dyes |
| 04/18/2002 | WO2002030374A1 Method of dyeing keratin-containing fibres |
| 04/17/2002 | CN1344762A Novel crystal pleomorphism matter of yellow bis-azo colorant |