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Class Information
Number: 534/740
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 > Hetero ring or polycyclo ring system which contains a hetero ring as one of the cyclos bonded directly to an azo group
Description: Compounds in which a hetero ring or a polycyclo ring system which contains a hetero ring as one of the cyclos is bonded directly to an azo group.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7341607 |
Yellow anionic disazo dyes |
Mar. 11, 2008 |
| 7262284 |
Method for producing disazo pigments |
Aug. 28, 2007 |
| 7144993 |
Process for the preparation of 4-methyl-7-aminoquinolones |
Dec. 5, 2006 |
| 6756487 |
Monoazoquinolone pigments, process for their preparation and their use |
Jun. 29, 2004 |
| 5559216 |
Single-step process for the preparation of bis-(acetoacetylamino) benzene disazo pigments |
Sep. 24, 1996 |
| 5554736 |
Azo dyes containing a 2-(arylsulphonylamino)pyrimidine radical |
Sep. 10, 1996 |
| 5037966 |
Azo dyes containing a 3-aminobenzothienoisothiazole diazo component |
Aug. 6, 1991 |
| 4997920 |
Monoazo compounds containing long-chain alkyl radicals |
Mar. 5, 1991 |
| 4981489 |
Disazo compounds and formulations containing same |
Jan. 1, 1991 |
| 4968352 |
Diaryl pigments with improved heat stability and transparency containing coupled mixed bis-diazotized diamines and acid-substituted aromatic amines |
Nov. 6, 1990 |
| 4946509 |
Diarylide pigment compositions |
Aug. 7, 1990 |
| 4946508 |
Disazo pyrazolone pigment compositions |
Aug. 7, 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 |
| 4764599 |
Disazo compounds containing an N,N-bis(2-amino-benzoyl)piperazine derivative as the diazo component |
Aug. 16, 1988 |
| 4686285 |
Basic azo and non-azo compounds having one or two disubstituted 1,3,5-triazine rings each of which is linked through a bridging radical to the 1-position of a pyrazole ring |
Aug. 11, 1987 |
| 4685934 |
Mono- and di-sulfo group containing compound having a substituted pyrazolyl diazo component radical and their use |
Aug. 11, 1987 |
| 4634764 |
Non-azo and azo compounds containing at least one 4,6-diamino-1-substituted-5-substituted carbamoylpyrid-2-one group |
Jan. 6, 1987 |
| 4623720 |
1:2 metal complexes of AZO compounds having a central substituted phenylenesulfonylaminophenylene radical |
Nov. 18, 1986 |
| 4600674 |
Trisazo electrophotographic photoconductive material |
Jul. 15, 1986 |
| 4579939 |
Azo dyes from substituted 2-aminothiophenes and acyclic active methylene couplers |
Apr. 1, 1986 |
| 4568738 |
Thiophen-2-ylazopyrazole compounds as colorants for textile fibers |
Feb. 4, 1986 |
| 4562247 |
Disazo compounds containing a 6-acetoacetamide-1-naphthol-3-sulfonic derivative as coupling component |
Dec. 31, 1985 |
| 4533613 |
Disazo compounds and photoconductive composition as well as electrophotographic light sensitive element containing the same |
Aug. 6, 1985 |
| 4529678 |
Electrophotographic photoconductor comprising a dithiol derivative |
Jul. 16, 1985 |
| 4444684 |
Azo dyes containing a diazotized 5-amino isothiazol moiety having thereon a sulfonic acid or salt group |
Apr. 24, 1984 |
| 4426327 |
3,6-Disazo-9-ethyl carbazole compounds |
Jan. 17, 1984 |
| 4409142 |
Disazo compounds having a 5-amino or hydroxy-3-carboxy or methyl-1-substituted phenylphyrazole coupling component radical |
Oct. 11, 1983 |
| 4400319 |
Monoazo pigments containing heterocycles, and high-molecular organic materials dyed therewith |
Aug. 23, 1983 |
| 4342684 |
Hydrosoluble pyrazolone trisazo dyestuffs derived from 4,4'-diamino-benzenesulfanilide |
Aug. 3, 1982 |
| 4327019 |
Acid azo dyes from a 3-amino-benzisothiazole-[2,1]-5-sulfonic acid diazo component |
Apr. 27, 1982 |
| 4312807 |
Monoazo compounds, process for their manufacture and their use |
Jan. 26, 1982 |
| 4302390 |
Azo dyes with sulfate groups on the diazotized 2-amino thiazol and 5-amino isothiazol moiety and with aniline, tetrahydroquinoline and benzomorpholine couplers |
Nov. 24, 1981 |
| 4302387 |
Azo dyes from 1,3,4-thiadiazol-2-yl and 1,2,4-thiadiazol-5-yl moieties bearing sulfated hydroxyalkoxycarbonyl or N-(hydroxyalkyl)carbamoyl groups on their rings |
Nov. 24, 1981 |
| 4301070 |
Azo dyes from a 5-aminopyrazole bearing 1 to 2 sulfated hydroxyalkoxycarbonyl or N-(hydroxyalkyl) carbamoyl groups on its ring |
Nov. 17, 1981 |
| 4301068 |
Azo dyes from a 2-aminothiophene having 1 or 2 sulfated hydroxyalkoxycarbonyl or N-(hydrocyalkyl) carbamoyl groups on its ring |
Nov. 17, 1981 |
| 4293628 |
Electrophotographic elements containing disazo compounds |
Oct. 6, 1981 |
| 4277397 |
Monoazo compounds deriving from 5-amino-benzimidazole-2-one-6-carboxylic acid |
Jul. 7, 1981 |
| 4272298 |
Process for conditioning a pigment in liquid ammonia |
Jun. 9, 1981 |
| 4248773 |
Acetoacetamide diazo dyestuffs |
Feb. 3, 1981 |
| 4229343 |
Azo dyes from an oxadiazolyl-substituted aniline |
Oct. 21, 1980 |
| 4225492 |
Water-soluble disazo dyestuffs, prepared from unsymmetrical heterocyclic diamines |
Sep. 30, 1980 |
| 4221709 |
Azo pigments |
Sep. 9, 1980 |
| 4220586 |
Hetero-aryl azo acylamino substituted aceto-acetarylide pigments |
Sep. 2, 1980 |
| 4211698 |
Disazo dyes containing an acetoacetanilide middle component |
Jul. 8, 1980 |
| 4141891 |
Quinolone-azo-acetoacetamino quinolone pigments |
Feb. 27, 1979 |
| 4118382 |
Reactive mono-azo dyestuffs having a 4-amino-3,5(or-6)-disulfoacetic acid coupling component and a reactive group attached to the diazo component |
Oct. 3, 1978 |
| 4116953 |
Azo dyes |
Sep. 26, 1978 |
| 4116952 |
Unsymmetrical azo - azo methine 1:2 chromium complex dyes |
Sep. 26, 1978 |
| 4089851 |
Sulfo containing disazo dyestuffs derived from diazotized 4,4'-diaminobenzanilide, a 1-phenyl-3-methyl-5-aminopyrazole coupler and a second coupler |
May. 16, 1978 |
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