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Class Information
Number: 534/581
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Azo > Formation of azo group by coupling diazonium compound with coupling component in presence of an additional organic compound
Description: Processes wherein the azo group is formed by the coupling of a diazonium compound with a coupling component in the presence of an additional organic compound.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8273877 |
Substituted tetraazapentalenes |
Sep. 25, 2012 |
| 7927384 |
Acid dyes |
Apr. 19, 2011 |
| 7772376 |
Manufacturing process |
Aug. 10, 2010 |
| 7754273 |
Method of printing a time-temperature indicator based on azo coupling reactions onto a susbtrate |
Jul. 13, 2010 |
| 7708824 |
C. I. pigment red 57:1 and production process thereof |
May. 4, 2010 |
| 7521545 |
Azo compounds and process for production thereof |
Apr. 21, 2009 |
| 7439339 |
Azo coupling reactions of hydrophobic compounds |
Oct. 21, 2008 |
| 7402369 |
Mono azo iron complex compound, and charge controlling agent and toner using the same |
Jul. 22, 2008 |
| 7074906 |
Organic solvent-free process for the preparation of 2-(2-nitrophenylazo)phenols |
Jul. 11, 2006 |
| 6923856 |
Method of improving pigment fluorescence |
Aug. 2, 2005 |
| 6913641 |
Laked monoazo pigments based on naphtholsulfonic acids |
Jul. 5, 2005 |
| 6913640 |
Single-phase mixed crystals of laked monoazo dyes |
Jul. 5, 2005 |
| 6902612 |
Heat stable laked monoazo red pigment |
Jun. 7, 2005 |
| 6756486 |
Non-migrating metallized disazo green shade yellow pigment |
Jun. 29, 2004 |
| 6756485 |
Process for preparing a monoazo metal complex salt compound for charge control agent and toner for developing electrostatic images |
Jun. 29, 2004 |
| 6706863 |
Organic pigment with high transparency and hydrophobicity |
Mar. 16, 2004 |
| 6576748 |
Method for making dimeric azo pyridone colorants |
Jun. 10, 2003 |
| 6566507 |
Processes for the preparation of benzotriazole UV absorbers |
May. 20, 2003 |
| 6375733 |
Heat stable monoazo magenta pigment compositions |
Apr. 23, 2002 |
| 6281338 |
Mono- and dipotassium salts of azo compounds |
Aug. 28, 2001 |
| 6254671 |
Very green-shade yellow metallized disazo pigment |
Jul. 3, 2001 |
| 6235100 |
Metallized azo yellow pigments |
May. 22, 2001 |
| 6150509 |
Water-insoluble yellow monoazo pigment |
Nov. 21, 2000 |
| 6133432 |
Processes for preparing pesticidal intermediates |
Oct. 17, 2000 |
| 6111083 |
Disperse dyes |
Aug. 29, 2000 |
| 6090927 |
Intermediates for preparing pyrazole derivatives |
Jul. 18, 2000 |
| 6028178 |
Pigment for electrophotographic toners and developers |
Feb. 22, 2000 |
| 5998592 |
Monoazo dyes containing a fluorosulphonyl group and use thereof |
Dec. 7, 1999 |
| 5973126 |
Azo compounds and process for producing the same |
Oct. 26, 1999 |
| 5964899 |
Azo dyes, their production and use |
Oct. 12, 1999 |
| 5942604 |
Azo dye mixtures |
Aug. 24, 1999 |
| 5889162 |
Strong green-shade yellow disazo pigment |
Mar. 30, 1999 |
| 5869628 |
Disperse dyes |
Feb. 9, 1999 |
| 5852179 |
Preparation of disperse azo dyestuffs in the presence of alkoxylated acetylenic diols |
Dec. 22, 1998 |
| 5824117 |
Nitrobenzisothiazole azo dyestuff |
Oct. 20, 1998 |
| 5770708 |
Preparation of phenylazonaphthalenes |
Jun. 23, 1998 |
| 5747566 |
Water-insoluble azo colorants based on aminoquinazolinediones |
May. 5, 1998 |
| 5744588 |
Blue type disperse dye mixture and process for its preparation |
Apr. 28, 1998 |
| 5697985 |
Process for the preparation storage-stable dye dispersions |
Dec. 16, 1997 |
| 5677435 |
Heat stable monoazo red pigment compositions |
Oct. 14, 1997 |
| 5597905 |
Preparation of benzothiazolylazoanilines |
Jan. 28, 1997 |
| 5578711 |
Process for the preparation of dyestuffs |
Nov. 26, 1996 |
| 5541299 |
Process for the preparation of dyestuffs |
Jul. 30, 1996 |
| 5532344 |
Process for producing a monoazodye by diazo-coupling of a p-nitroanaline derivative with a N,N-substituted analine derivative |
Jul. 2, 1996 |
| 5508389 |
Process for producing concentrated aqueous solutions of anionic azo dyes |
Apr. 16, 1996 |
| 5502171 |
Process for the preparation of dyestuffs |
Mar. 26, 1996 |
| 5502173 |
Process for the preparation of a substituted 2-amino-1-sulphonaphthalene |
Mar. 26, 1996 |
| 5493011 |
Monoazo or disazo pigments based on (benoxazol-2-yl)- or (benzimidazol-2-yl)-arylacetamides |
Feb. 20, 1996 |
| 5484900 |
1:2 chromium complex dyestuffs |
Jan. 16, 1996 |
| 5459245 |
Fluorotriazine containing naphthylazonaphthyl monoazo reactive dyes |
Oct. 17, 1995 |
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