| Patents for C09B 26 - Hydrazone dyes; Triazene dyes (487) |
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| 09/30/2004 | US20040191679 Photosensitive composition and novel compound used therefor |
| 09/15/2004 | EP1368434B1 Diaryl yellow pigment preparations |
| 08/26/2004 | WO2004072183A1 Cationic substituted hydrazone dyes |
| 08/19/2004 | US20040158937 N-phenyl quaternary pyridinium hydrazones, e.g., methylpyridiniumcarboxaldehyde, (benzyl)phenylhydrazone, chloride; preparation by acylating a phenylhydrazine with a pyridyl alkyl or aryl ketone and alkylating or benzylating the product; hair dyes |
| 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 | CN1513176A Optical data carrier that contains triazycyanine dye as light-absorbing compound in the information layer |
| 05/20/2004 | US20040096775 Optical recording materials having high storage density |
| 04/21/2004 | CN1491261A Diaryl yellow pigment preparations |
| 04/15/2004 | WO2004031766A1 Indicator for assessing body odor, process for producing the same, body odor assessment method, method of assessing efficaciousness of deodorant and kit for conveniently assesing body odor |
| 03/09/2004 | CA2153332C Cationic dyes for keratin-containing fibres |
| 02/26/2004 | US20040039182 Mono-and bis-hydrazone pigments |
| 02/12/2004 | WO2004013237A1 Organic solvent-based printing inks |
| 02/12/2004 | CA2483842A1 Organic solvent-based printing inks |
| 02/05/2004 | WO2003076518A3 Process for exchanging the anions of cationic compounds |
| 01/28/2004 | EP1384228A2 Optical recording materials having high storage density |
| 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 | WO2002074268A3 Dyeing compositions for the dyeing of keratin fibres, comprising heterocyclic hydrazone compounds |
| 01/02/2004 | EP1374233A1 Optical data carrier that contains a triazacyanine dye as the light-absorbing compound in the information layer g |
| 12/10/2003 | EP1368434A2 Diaryl yellow pigment preparations |
| 11/26/2003 | CN1458965A Azo orange nigment composition |
| 11/04/2003 | US6641889 Optical data storage medium containing a triazacyanine dye as the light-absorbing compound in the information layer |
| 10/22/2003 | EP1159276B1 Benzofuran-2-ones as colorants for organic materials |
| 09/18/2003 | WO2003076518A2 Process for exchanging the anions of cationic compounds |
| 09/04/2003 | US20030164118 Conditioning of organic pigments |
| 09/02/2003 | US6613140 Azo orange pigment composition |
| 08/28/2003 | WO2002082438A3 Optical recording materials having high storage density |
| 08/05/2003 | US6602342 Crystal polymorphs of C.I. Pigment Yellow 191 and their preparation |
| 07/24/2003 | WO2003060015A1 Yellow cationic dyes for dying of organic material |
| 06/18/2003 | EP1319048A1 Azo orange pigment composition |
| 05/13/2003 | US6562121 Thermally treating a liquid prepigment suspension in a microreactor |
| 05/08/2003 | US20030084516 Oxidation precursor 1-(4-aminophenyl)pyrrolidines and its acid addition salts, and direct dye(s) chosen from nitrobenzene dyes and cationic dyes of given formula; intense colors without hair damage, colorfastness, dyeing grey hair |
| 01/08/2003 | EP1272567A2 Mono- and bis-hydrazone pigments |
| 12/27/2002 | WO2002070611A3 Diaryl yellow pigment preparations |
| 12/26/2002 | US20020197439 Optical data storage medium containing a triazacyanine dye as the light-absorbing compound in the information layer |
| 12/18/2002 | EP1124904B1 Solid solutions of monoazo pigments |
| 11/19/2002 | US6482257 Solid solutions of monoazo pigments |
| 10/31/2002 | WO2002085988A1 Water-soluble salt of sulfonamides as colorants for the pigmenting of porous materials and for use in inkjet printing |
| 10/24/2002 | WO2002084656A1 Optical data carrier that contains a triazacyanine dye as the light-absorbing compound in the information layer g |
| 10/17/2002 | WO2002082438A2 Optical recording materials having high storage density |
| 09/26/2002 | WO2002074268A2 Dyeing compositions for the dyeing of keratin fibres, comprising heterocyclic hydrazone compounds |
| 09/19/2002 | WO2001074950A3 Mono- and bis-hydrazone pigments |
| 09/12/2002 | WO2002070611A2 Diaryl yellow pigment preparations |
| 09/12/2002 | DE10110596A1 Diarylgelbpigmentpräparationen Diarylgelbpigmentpräparationen |
| 07/25/2002 | US20020096086 Azo orange pigment composition |
| 07/25/2002 | US20020095732 Compositions for oxidation dyeing keratinous fibers comprising at least one oxidation precursor, and at least one direct dye, and dyeing methods |
| 06/20/2002 | US20020077387 Phase conversion with a solvent of diethylene glycol dimethyl ether, N- methylpyrrolidone, dimethyl sulfoxide, ethylene glycol, dimethylacetamide or dimethylformamide |
| 04/03/2002 | CN1343207A Benzofuran-2-ones as colorants for organic materials |
| 03/28/2002 | WO2002024817A1 Azo orange pigment composition |
| 03/28/2002 | CA2413460A1 Azo orange pigment composition |
| 02/07/2002 | US20020014179 Thermally treating a liquid prepigment suspension in a microreactor |
| 01/17/2002 | DE10032315A1 Neue Kristallmodifikationen von CI Pigment Yellow 191 und Verfahren zu ihrer Herstellung New crystal modifications of CI Pigment Yellow 191 and methods for their preparation |
| 01/10/2002 | DE10031558A1 Verfahren zur Konditionierung von organischen Pigmenten A process for conditioning organic pigments |
| 01/09/2002 | EP1170338A2 New crystalline modification of C.I. Pigment Yellow 191 and manufacturing process thereof |
| 01/09/2002 | CN1330116A Conditioning of organic pigment |
| 01/09/2002 | CN1330114A C.1. pigment yellow 191 new-type polymorph and preparation method thereof |
| 01/02/2002 | EP1167461A2 Process for conditioning organic pigments |
| 01/02/2002 | EP1165693A2 Squaraine dyes |
| 12/26/2001 | CN1328594A Solid solutions of monoazo pigments |
| 12/05/2001 | EP1159276A2 Benzofuran-2-ones as colorants for organic materials |
| 11/13/2001 | US6316605 For use in recording materials for thermal transfer recording, ink jet recording |
| 10/31/2001 | EP1149575A1 Oxidative dyeing composition for keratin fibres comprising 1-(4-aminophenyl)-pyrrolidine and a particular direct dye |
| 10/11/2001 | WO2001074950A2 Mono- and bis-hydrazone pigments |
| 10/11/2001 | CA2403328A1 Mono- and bis-hydrazone pigments |
| 08/22/2001 | EP1124904A1 Solid solutions of monoazo pigments |
| 06/20/2001 | CN1067237C Cationic dyes for keratin-containing fibres |
| 05/08/2001 | US6228162 Process for preparing new crystal modifications of C.I. pigment red 53:2 |
| 02/22/2001 | WO2000053597B1 Benzofuran-2-ones as colorants for organic materials |
| 02/14/2001 | EP1076080A1 Ink jet printing method |
| 02/01/2001 | WO2000058405A3 Squaraine dyes |
| 12/21/2000 | WO2000053597A3 Benzofuran-2-ones as colorants for organic materials |
| 10/24/2000 | US6136081 Printing with a dye mixture comprising humectant and a co-milled color mixture of pigment yellow 74 and an organic pigment with structure similar to the primary dye, resulting dispersion is resistant to particle ripening |
| 10/05/2000 | WO2000058405A2 Squaraine dyes |
| 10/05/2000 | CA2366263A1 Squaraine dyes |
| 09/14/2000 | WO2000053597A2 Benzofuran-2-ones as colorants for organic materials |
| 08/02/2000 | CN1261614A Method for preparing new crystal deformation of C. I. dye red 53 : 2 |
| 06/21/2000 | EP1010732A1 Preparation process of new crystalline modifications of pigment C.I. Pigment Red 53:2 |
| 06/21/2000 | DE19858853A1 Verfahren zur Herstellung neuer Kristallmodifikationen von CI Pigment Red 53:2 Process for the preparation of new crystal modifications of CI Pigment Red 53: 2 |
| 05/16/2000 | US6063729 Thermal transfer sheet |
| 05/11/2000 | WO2000026303A1 Solid solutions of monoazo pigments |
| 05/11/2000 | CA2344371A1 Solid solutions of monoazo pigments |
| 01/26/2000 | EP0681464B1 Cationic dyes for keratin-containing fibres |
| 08/31/1999 | US5945242 Electrophotographic photoreceptor containing hydrazone |
| 06/10/1999 | DE19744616C1 Photosensitive material for electrophotography |
| 02/09/1999 | US5869731 Cationic dyes having specified computed electrostatic shielding energy |
| 09/08/1998 | US5804530 Thermal transfer sheet |
| 05/12/1998 | US5749925 Dyeing or printing process with new and known cationic 4,5-dihydro-iH-1,2,3-triazolium compounds as dyestuffs and new cationic 4,5-dihydro-1H-1,2,3-triazolium compounds |
| 03/17/1998 | US5728646 Heat-sensitive recording material |
| 03/10/1998 | US5725607 Computed electrostatic shielding energy |
| 01/20/1998 | US5710012 Salt of 6-carboxy-3-methylbenzothiazolone hydrazone hydrate in colorimetric determination of hydrogen peroxide |
| 09/03/1997 | EP0792757A1 Dye donor element for use in thermal transfer printing |
| 08/13/1997 | EP0788891A1 Dyes and dye-donor elements for thermal dye transfer recording |
| 07/08/1997 | US5646291 Process for the manufacture of 2-phenyl-4,5-oxazoledione 4-phenylhydrazone derivatives |
| 01/22/1997 | EP0754563A2 Thermal transfer sheet |
| 01/21/1997 | US5595574 Support with thermal dye layer, heterocyclic hydrazino dyes and slipping layer |
| 01/08/1997 | EP0752494A1 Process for reducing the toxicity of residual dyeing-baths and new cationic dyes |
| 01/08/1997 | EP0752451A1 The use of novel and known 4,5-dihydro-1H-1,2,3-triazolium cationic compounds as dyestuffs and novel 4,5-dihydro-1H-1,2,3-triazolium cationic compounds |
| 12/31/1996 | US5589316 Heterocyclic azo dyes on supports for images |
| 11/26/1996 | US5578711 Process for the preparation of dyestuffs |
| 11/05/1996 | US5571289 Dyed receiving elements which comprise a heterocyclic hydrazono dye |
| 10/29/1996 | US5569763 Useful as organic nonlinear optical material and a highly sensitive coloring chelation agent |