Resources Contact Us Home
Browse by Category: Main > Chemistry
Class Information
Number: 534/DIG.1
Name: Organic compounds -- part of the class 532-570 series > Mixtures of azo compounds

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
7956170 Aromatic-aliphatic azo derivatives particularly as markers for petroleum products, method for synthesizing them, use thereof and derived compositions Jun. 7, 2011
RE38531 Tetrakisazo dyes, their production and use Jun. 8, 2004
6043349 Tetrakisazo dyes, their production and use Mar. 28, 2000
6022957 Azothiophenes and mixtures thereof Feb. 8, 2000
5942604 Azo dye mixtures Aug. 24, 1999
5827332 Azo dyes and a method of making a hydrocarbon using an azo dye Oct. 27, 1998
5762653 Dye mixtures, processes for their preparation and their use Jun. 9, 1998
5744588 Blue type disperse dye mixture and process for its preparation Apr. 28, 1998
5734028 Blue type disperse dye mixture Mar. 31, 1998
5386015 Monoazo and disazo compounds having 5-cyano-2,4-and 4,6-dichloropyrimidyl groups Jan. 31, 1995
5330542 Dye-incorporated composition Jul. 19, 1994
5304222 Monoazo benzothiazole disperse dye mixture Apr. 19, 1994
5292872 Monoazo dispersed dyes, mixtures containing them, and the preparation and the use thereof Mar. 8, 1994
5290921 Intermediates and colorants having primary hydroxyl enriched poly (oxyalkylene) moieties and their preparation Mar. 1, 1994
5286287 Monoazo lake pigment suitable for use in printing ink and process for the production thereof Feb. 15, 1994
5278293 Azo dyestuffs and intermediate products for their preparation Jan. 11, 1994
5256772 Monoazo lake pigment and uses thereof Oct. 26, 1993
5256194 Color ink jet recording method Oct. 26, 1993
5241058 Azo dye salts useful as masking couplers and preparation thereof Aug. 31, 1993
5227476 2-(3,6,8-trisulfonaphth-2-ylazo)-5-[2-chloro-4-[2-(5-chlo ro-2,4-difluoropyrimid-6-ylamino)-2-methyl-ethyl]amino-1,3,5-triazin-6-yl amino]phenyl urea salts thereof Jul. 13, 1993
5216139 Thiopheneazo dye based on a coupling component of the thiazole series Jun. 1, 1993
5171848 Salts of black trisazo dyes with alkyl amines having good solubility in organic liquids Dec. 15, 1992
5160495 2-cyano-4,6-dimitro-phenyl monoazo dyestuffs Nov. 3, 1992
5160348 Mixtures of blue azo disperse dyestuffs Nov. 3, 1992
5151129 Process for the production of pigments in the presence of an azo dyestuff Sep. 29, 1992
5112958 Fibre-reactive formazan dyes containing .beta.-chloroethylsulfonyl or vinylsulfonyl bonded via phenylaminotriazinylamino May. 12, 1992
5095101 1-Amino-2,7-di-[5'-(2"-chloro-4"-substituted amino-1,3,5-triazin-6"-ylamino)-2'-sulfophenylazo]-3,6-disulfonic acids Mar. 10, 1992
5076811 Fibre-reactive formazane dyes containing .beta.-sulfatoethylsulfonyl bonded via phenylaminotriazinylamino bridge members Dec. 31, 1991
5068319 Biz-diazotized diaryl diamine coupled dyes having improved solubility in organic solvent Nov. 26, 1991
5066791 Pyridoneazo dyes with an M-aminobenzoic ester as the diazo component Nov. 19, 1991
5055566 Amine salts of disazo black dyes having good solubility in polar organic solvents Oct. 8, 1991
5053495 Anionic dye having high water-fastness Oct. 1, 1991
5030247 Mixtures of disazo compounds containing two phenyl diazo component radicals having one or two (C.sub.1-4 alkoxy)carbonyl groups and a bis-acetoacetamido-arylene coupling radical Jul. 9, 1991
5026831 Water-insoluble disazo colorants having hetero-bicyclic methylene-active compounds as coupling component Jun. 25, 1991
5006644 Copper complexes of further substituted 2,4-di-[2'-(2"-hydroxyphenylazo)-1'-hydroxy-3'-sulfonaphthyl-6'-amino]-6 -chloro-1,3,5-triazines Apr. 9, 1991
5001229 Water soluble basic dyestuffs Mar. 19, 1991
5001226 Metal-free disazo and polyazo compounds having at least one 6-hydroxypyrid-2-one coupling component radical linked to a 1-amino- or hydroxy-3-amino- or hydroxybenzene coupling component radica Mar. 19, 1991
4994562 Fiber-reactive formazan dyes containing .alpha.,.beta.-dihalopropionylamino, .alpha.-haloacryloylamino or haloacetilamine Feb. 19, 1991
4994111 Ink-jet ink containing lithium salt of copper complex monoazo dye Feb. 19, 1991
4990598 Fibre-reaction 1:1 chromium complex azo or azomethine dyes having a bidentate chelating group and a monofunctional neutral ligand Feb. 5, 1991
4985045 Mixtures of mon-azo dyestuffs for dyeing and printing hydrophobic synthetic fiber materials Jan. 15, 1991
4985043 Mixtures of monoazo dyes containing halogen and cyano substituents Jan. 15, 1991
4981489 Disazo compounds and formulations containing same Jan. 1, 1991
4980458 Mixed sodium, ammonium and/or calcium salt crystals of laked monoazo disulfonated pyrazolone pigments Dec. 25, 1990
4978747 Colorants obtained by reacting a NH.sub.2 -containing dyestuff with a diisocyanate followed by reaction of this adduct with a diamine Dec. 18, 1990
4968352 Diaryl pigments with improved heat stability and transparency containing coupled mixed bis-diazotized diamines and acid-substituted aromatic amines Nov. 6, 1990
4954133 Mixtures of a 1:1 copper or nickel complex of a stilbene-azo or stilbene-azoxy compound having two 4,4'-(2,2'-disulfostilbenylene) radicals and a 1:1 copper or nickel complex of a stilbene-azo Sep. 4, 1990
4940492 Colorant mixtures containing isoquinoline derivatives, use thereof in printing inks, and novel isoquinoline derivatives Jul. 10, 1990
4937325 Process for dyeing and printing synthetic fibers with mixtures of monoazo dyestuffs Jun. 26, 1990
4935502 Diazo compounds, a process for their preparation and their use as colorants Jun. 19, 1990

1 2 3 4

  Recently Added Patents
Light-source control device, light-source control method, image reading device, and image forming apparatus
Mode detection for DVB receiver
Decentralized processing network
Programmable computer mouse
Methods and apparatus for achieving multiple bit rates in passive optical networks
Electromagnetic bandgap structure and printed circuit board
Method for parking or exiting a parking bay and for avoiding a collision of a vehicle, and corresponding assistance systems and vehicle
  Randomly Featured Patents
Endoscopic hemostatic agent delivery system
LCD device having a plurality of pixel regions with a conductive layer parallel to the drain lines and connected to a counter electrode and of which is perpendicular to and as an extending por
Surgical stapler shaft cover
System and method for equalizing data buffer storage and fetch rates of peripheral devices
Body to be bonded to a machine housing
Process for preparing liquid hydrocarbons
High rigidity moving column horizontal machine tool
Power-assisted wheelbarrow
Method and device for condensed image recording and reproduction
Method and apparatus for connecting side-by-side recumbent bicycles to form a quadracycle