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Class Information
Number: 534/739
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Azo > Azo bonded directly to an acylic carbon which is bonded directly to two acyclic carbons, each of which is double or triple bonded to an atom
Description: Compounds in which an azo group is bonded directly to an acyclic carbon, which carbon is additionally bonded directly to two acyclic carbons, each of which is double or triple bonded to an atom.


Sub-classes under this class:

Class Number Class Name Patents
534/743 At least three azo groups attached indirectly to each other by nonionic bonding 21
534/750 Having -c(=x)-, wherein x is chalcogen, attached indirectly by nonionic bonding to the acyclic carbon to which the other two acyclic carbons are bonded 26
534/741 Hetero ring attached indirectly to an azo group by nonionic bonding 33
534/740 Hetero ring or polycyclo ring system which contains a hetero ring as one of the cyclos bonded directly to an azo group 67
534/749 Sulfonyl bonded directly to nitrogen 16
534/744 Two azo groups attached indirectly to each other by nonionic bonding 21


Patents under this class:
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Patent Number Title Of Patent Date Issued
7297200 Water-soluble yellow azo dyes Nov. 20, 2007
6087480 Process for preparing sparingly soluble aromatic amines Jul. 11, 2000
5243031 Process for the production of monoazo lake pigment coated with water-insoluble rosin and improved in lipophilic nature and water resistance Sep. 7, 1993
5168026 Bis-azo compound and electrophotographic photosensitive member with a light receiving layer containing said bis-azo compound Dec. 1, 1992
5144014 Process for production of monoazo lake coated with water-insoluble metal salt of rosin Sep. 1, 1992
5086168 Monoazo pigments derived from diazotized di- or trichloroanilines, preparation thereof and their use Feb. 4, 1992
5071967 Disazo compounds containing long-chain alkyl ester radicals or alkylamide radicals Dec. 10, 1991
5051131 Azo dispersing agents and azo pigment compositions Sep. 24, 1991
4997939 Process for preparing adenine Mar. 5, 1991
4952677 Azo colorants for ball point pen and ribbon inks Aug. 28, 1990
4946948 Mono and disazo compounds based on b-hydroxy-naphthoic acid derivatives or acetoacetarylide derivatives containing long-chain alkyl ester or alkylamide radicals Aug. 7, 1990
4920205 Process for making azo pigments Apr. 24, 1990
4920206 Process for making azo pigments Apr. 24, 1990
4918183 Monoazo dyes, process for their preparation, and the use thereof Apr. 17, 1990
4906740 Monoazo dyes containing as the azo component A phenylsulfonylphenyl radical Mar. 6, 1990
4780533 Disazo pigments having improved heat resistance using lower alkyl and phenyl esters of acetoacetanilide Oct. 25, 1988
4746323 Water-soluble vinyl sulfonyl-type reactive monoazo yellow dyestuffs mixtures with high color yield May. 24, 1988
4704452 Azo dyes containing aralkyl-nitrophenyl diazo components Nov. 3, 1987
4661587 Bis 1:2 chromium complexes of disazo and azo or azomethine dyes Apr. 28, 1987
4617382 8-hydroxyquinoline sulfonic acid-azo chromium complexes Oct. 14, 1986
4602084 Monoazo dyes containing a 4-substituted-2-azo-1,1'-diphenylsulfone component Jul. 22, 1986
4560744 Azo dye 2:1-chromium complexes Dec. 24, 1985
4550158 Metal-free disazo compounds containing at least two basic water-solubilizing groups and having a 1-phenylpyrazole middle component radical and a 6-hydroxyprid-2-one terminal coupling component Oct. 29, 1985
4545928 Paste for forming a transparent, electrically conductive film Oct. 8, 1985
4535151 Process for the wet granulation of organic pigments in an aqueous system with hydrolysis of acetic anhydride, propionic anhydride or a mixture thereof Aug. 13, 1985
4523953 Photostable yellow composite pigments and process for their preparation Jun. 18, 1985
4474609 Recrystallization-resistant monoazo pigment mixtures of high tinctorial strength, process for their preparation and their use Oct. 2, 1984
4473500 Monoazo pigments derived from aminophthalimides and substituted acetoacetarylides or 2-hydroxy-3-naphthoylarylides Sep. 25, 1984
4468255 Rheology modifiers for arylide yellow pigment dispersions and pigment dispersions containing same Aug. 28, 1984
4454067 Continuous production of azo pigments Jun. 12, 1984
4341701 Production of pigments Jul. 27, 1982
4331596 Arylazoarylazo-substituted azo, azomethine 1:2 chromium complex dyes May. 25, 1982
4322415 Stable concentrated liquid preparations of metal complex dyes Mar. 30, 1982
4315865 Process for the production of sulfuric acid semiester compounds by sulfation in a machine employing kneading action Feb. 16, 1982
4304711 Pigment compositions Dec. 8, 1981
4301071 Azo dyes from aniline having 1 or 2 sulfated hydroxyalkoxycarbonyl or N-(hydroxyalkyl)carbamoyl groups on its ring Nov. 17, 1981
4293306 Process for the dyeing and printing of hydrophobic synthetic organic fiber materials with water-insoluble azo dyestuffs Oct. 6, 1981
4280955 Sulfo, chloro phenolazoacetoacetylbenzamide dyes Jul. 28, 1981
4251441 Pigments of mixtures of methoxynitrobenzene-azo-methoxy-acetanilides Feb. 17, 1981
4242259 Anthraquinone-azo reactive dyestuffs Dec. 30, 1980
4242094 Dyeing preparations and their use for preparing developing dyes Dec. 30, 1980
4209516 Triazole derivatives Jun. 24, 1980
4159264 Automatic control of azo coupling processes in the manufacture of azo pigments Jun. 26, 1979
4156016 Indole compounds and process for their preparation May. 22, 1979
4118384 Process for preparation of azo dyestuffs by coupling in presence of aromatic sulphonic acid-formaldehyde reaction product Oct. 3, 1978
4113719 1:2-Cobalt-complex azo dyestuffs having an acetoacetylamino diphenylamino coupler Sep. 12, 1978
4092314 Preparation of 4,6-diamino-5-arylazopyrimidines and adenine compounds May. 30, 1978
4083686 Uniformly dyed water-swellable cellulosic fibers Apr. 11, 1978
4079063 Process for the preparation of 2-phenyl-4-hydroxy-1,2,3-triazole-1-oxides Mar. 14, 1978
4077953 Tri-dentate metal complex azo pigments Mar. 7, 1978

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