| Patents for C09B 41 - Special methods of performing the coupling reaction (551) |
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| 12/18/2013 | CN103450699A Grinding coupling method for preparing disperse dye |
| 05/08/2013 | CN101490179B 双偶氮颜料组合物 Disazo pigment composition |
| 12/27/2012 | US20120328984 Process for producing azo compounds, pigment dispersion, coloring composition, ink for inkjet recording, coloring composition for color filter, and color filter |
| 11/21/2012 | CN101365756B C.I. pigment red 57:1 and manufacturing method thereof |
| 11/20/2012 | US8314214 Synthesis of azo bonded immunoregulatory compounds |
| 10/04/2012 | WO2012133612A1 Method for producing azo pigment |
| 09/25/2012 | US8273877 Substituted tetraazapentalenes |
| 06/28/2012 | US20120159719 Black trisazo dyes, their preparation and their use |
| 04/26/2012 | US20120101264 Rinsable dyes and methods for their preparation |
| 06/15/2011 | EP1594923B1 Methods for preparing aqueous colored pigment dispersions, and inkjet ink compositions |
| 04/12/2011 | US7923540 2-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl]azo]-benzoic acid and a process for its preparation |
| 04/06/2011 | EP2305759A2 Nonpolar liquid and solid phase change ink compositions comprising nanosized particles of benzimidazolone pigments |
| 03/02/2011 | EP2290015A2 Nanoscale pigment particle composition and process for producing same |
| 03/02/2011 | EP2290014A2 Nanoscale benzimidazolone pigment particle composition and process for producing same |
| 03/02/2011 | EP2290013A2 Methods of making nanosized particles of benzimidazolone pigments |
| 03/02/2011 | EP2290012A2 Nanoscale pigment particle composition and process for producing same |
| 02/16/2011 | CN101978000A Method of preparing modified colored pigments |
| 02/03/2011 | US20110023753 Azo pigment composition, process for producing azo pigment composition, dispersion containing azo pigment composition, coloring composition and ink for inkjet recording |
| 01/27/2011 | US20110017099 Azo pigment composition, production process of azo pigment composition, dispersion containing azo pigment composition, coloring composition and ink for inkjet recording |
| 01/19/2011 | CN1763136B Production process and system for insoluble azo pigments |
| 01/12/2011 | EP1819778B1 Preparation process of azo pigment dispersion |
| 12/08/2010 | CN101395227B Process for production of azo compound |
| 12/07/2010 | US7847073 diazotized, coupled to methyl-substituted phenylenediamine; aminobenzenesulfonic acids; nanofiltration; storage stability |
| 11/24/2010 | EP2252659A2 Method of preparing modified colored pigments |
| 10/20/2010 | CN101054473B Coupling producing device and producing technique |
| 09/15/2010 | EP2228410A1 C.I. Pigment Red 112 with improved dispersion |
| 08/10/2010 | US7772376 preparation of a desired chemical compound in a continuous reactor in which a part of the product stream exits the reactor and part of the product stream is recycled around the reactor in order to reduce the amount of buffer that would otherwise be required |
| 07/22/2010 | WO2009094178A3 Method of preparing modified colored pigments |
| 06/24/2010 | WO2010003969A3 New azo dyes |
| 05/19/2010 | CN101287802B Azo pigment preparation |
| 05/04/2010 | US7708824 C. I. pigment red 57:1 and production process thereof |
| 03/23/2010 | US7682406 Disazo dyes and dye compositions for shading white paper |
| 01/19/2010 | US7649026 Radiation curable compositions containing nanosized particles of monoazo laked pigment |
| 01/12/2010 | US7645336 containing 4,4'-diaminodicyclohexyl-methane wherein a fraction of trans,trans-isomer is at least 25% based on a total amount of 4,4'-diaminodicyclohexylmethane; a long chain aliphatic primary amine such as cocoamine, stearylamine etc. organic pigments such as pigment yellow 12 and a red pigment |
| 12/30/2009 | CN100575426C Methods of preparing aqueous colored pigment dispersions, and inkjet ink compositions |
| 12/03/2009 | US20090294762 Compound having thiol anchoring group, method of synthesizing the same, and molecular electronic device having molecular active layer formed using the compound |
| 12/02/2009 | EP1976937B1 2-[[1-[[(2,3-dihydro-2-oxo-1h-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl]azo]-benzoic acid and a process for its preparation |
| 10/27/2009 | CA2339175C Strong green-shade yellow disazo pigment |
| 10/21/2009 | EP2110412A2 Nanosized particles of benzimidazolone pigments |
| 08/12/2009 | EP1966323B1 Azo pigment preparation |
| 07/30/2009 | WO2009094178A2 Method of preparing modified colored pigments |
| 07/21/2009 | US7563318 Reacting organic pigment with sterically bulky stabilizer |
| 05/21/2009 | US20090126128 Disazo Acid Dyes |
| 05/13/2009 | EP2058373A2 Organic pigment fine-particle, and method of producing the same |
| 05/07/2009 | US20090118478 preparation of a desired chemical compound in a continuous reactor in which a part of the product stream exits the reactor and part of the product stream is recycled around the reactor in order to reduce the amount of buffer that would otherwise be required |
| 03/25/2009 | CN101395227A Process for production of azo compound |
| 02/18/2009 | CN101370874A 2-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl]azo]-benzoic acid and a process for its preparation |
| 02/11/2009 | CN101365756A C.I. pigment red 57:1 and its manufacturing method |
| 01/06/2009 | US7473310 Nanosized particles of monoazo laked pigment and non-aqueous compositions containing same |
| 12/16/2008 | US7465349 Method of making nanosized particles of monoazo laked pigment |
| 12/16/2008 | US7465348 Nanosized particles of monoazo laked pigment |
| 12/10/2008 | EP2000512A2 Nanosized particles of monoazo laked pigment |
| 11/12/2008 | EP1990374A1 C. i. pigment red 57:1 and method for producing the same |
| 11/06/2008 | WO2008134338A1 Novel processes of making hydroxy-1-azo-derivatives as tpo mimetics |
| 10/21/2008 | US7439339 Photographic couplers; acidification; environmentally friendly; free of phase transfer catalyst |
| 10/15/2008 | CN101287802A Azo pigment preparation |
| 10/08/2008 | EP1976937A1 2-[[1-[[(2,3-dihydro-2-oxo-1h-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl]azo]-benzoic acid and a process for its preparation |
| 09/23/2008 | US7427322 Contacting an organic pigment solution a nonionic dispersant and a polymer dispersant, with an aqueous medium containing an anionic dispersant in a channel and generating fine pigment particles in the liquid while it flows in the channel |
| 09/10/2008 | EP1966323A1 Azo pigment preparation |
| 06/11/2008 | EP1169393B1 Acetoacetylarylide suspensions in pigment applications |
| 05/28/2008 | CN100390236C Method for preparing tetrazo pigment |
| 04/23/2008 | CN100383195C Method for synthesizing polymeric azo dyes |
| 04/02/2008 | CN100378178C Monoazo lake pigment composition and gravure ink using the same |
| 02/20/2008 | EP1889881A2 A method for producing an azo compound |
| 01/24/2008 | WO2008010477A1 Disazo pigment composition |
| 01/16/2008 | CN100362054C Production process of azoic disperse dye |
| 12/20/2007 | US20070289500 Organic pigment fine-particle, and method of producing the same |
| 12/18/2007 | US7309389 Incorporating into the ink an azo pigment prepared by diazotization of aromatic or hetaromatic amines |
| 12/13/2007 | WO2007142191A1 C. i. pigment red 57:1 and method for producing the same |
| 12/13/2007 | WO2007142185A1 Process for production of azo compound |
| 11/07/2007 | CN101068886A Preparation process of azo pigment dispersion |
| 10/18/2007 | US20070240618 High-Purity Naphthol as Pigments |
| 10/17/2007 | CN101054473A Coupling producing device and producing technique |
| 10/10/2007 | CN100341859C Organic solvent-free process for the preparation of 2-(2-nitrophenylazo)phenols |
| 09/13/2007 | US20070213516 Process For Producing High-Purity Azo Dyes |
| 09/13/2007 | US20070213514 Method for producing liquid adjustments of basic azo dyes |
| 08/22/2007 | EP1819778A1 Preparation process of azo pigment dispersion |
| 07/26/2007 | WO2007082813A1 2-[[1-[[(2,3-dihydro-2-oxo-1h-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl]azo]-benzoic acid and a process for its preparation |
| 07/19/2007 | WO2007079813A1 Azo pigment preparation |
| 07/19/2007 | CA2627767A1 Azo pigment preparation |
| 05/29/2007 | US7223302 Methods of preparing aqueous colored pigment dispersions, and inkjet ink compositions |
| 05/02/2007 | CN1957044A Method for producing liquid adjustments of basic azo dyes |
| 04/25/2007 | EP1777267A2 Process for the preparation of metallic azo compounds by means of re-pumping |
| 04/25/2007 | EP1777266A2 Process for the preparation of metal compounds of azo compounds in the presence of seeding crystals |
| 04/18/2007 | EP1773946A1 Manufacturing process |
| 04/11/2007 | CN1946811A High-purity naphthol as pigments |
| 04/04/2007 | CN1942529A Process for producing high-purity azo dyes |
| 03/13/2007 | CA2159872C Pigment for electrophotographic toners and developers |
| 02/28/2007 | EP1756231A1 Method for producing liquid adjustments of basic azo dyes |
| 02/14/2007 | EP1354007B1 Single-phase mixed crystals of laked monoazo dyes |
| 02/07/2007 | CN1298786C Method and device for carrying out chemical and physical methods |
| 01/10/2007 | EP1740659A1 Process for producing high-purity azo dyes |
| 01/10/2007 | EP1740658A1 High-purity naphthol as pigments |
| 01/09/2007 | US7160380 Organic pigment fine-particle, and method of producing the same |
| 01/09/2007 | US7160371 Method of improving pigment fluorescence |
| 12/20/2006 | EP1334156B1 Method of improving pigment fluorescence |
| 11/23/2006 | US20060260510 Organic pigment fine-particle, and method of producing the same |
| 11/14/2006 | US7135266 Provides optimal control of the process parameters, ensures improved mixing of reactants and simplifies scaleup |
| 10/12/2006 | US20060228640 Preparation of azo colorants in microreactors and their use in electrophotographic toners and developers, powder coatings, ink jet inks and electronic medias |
| 07/13/2006 | US20060154802 Organo-clay complexes |