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Class Information
Number: 534/746
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 > Two azo groups attached indirectly to each other by nonionic bonding > Each azo group is bonded directly to an acyclic carbon which is bonded directly to two acyclic carbons, each of which is double or triple bonded to an atom > Plural benzene rings bonded directly to each other and are between the azo groups
Description: Compounds wherein between the azo groups are at least two benzene rings which are bonded directly to each other.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5298609 |
Disazo compounds containing cycloalkyl ester or cycloalkylamide groups |
Mar. 29, 1994 |
| 5266110 |
Crystal modification of C.I. Pigment Yellow 16 |
Nov. 30, 1993 |
| 5034063 |
Dispersant-containing disazo pigment composition |
Jul. 23, 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 |
| 4981489 |
Disazo compounds and formulations containing same |
Jan. 1, 1991 |
| 4780533 |
Disazo pigments having improved heat resistance using lower alkyl and phenyl esters of acetoacetanilide |
Oct. 25, 1988 |
| 4767844 |
Azo lake pigments |
Aug. 30, 1988 |
| 4665163 |
Diaryl pigments with improved heat stability obtained by coupling bis-diazotized diamines with acetoacetanilides |
May. 12, 1987 |
| 4664709 |
Azoacylacetamide dispersing agents and azo-pigment compositions |
May. 12, 1987 |
| 4432900 |
Cationic dyestuff printing inks |
Feb. 21, 1984 |
| 4412950 |
Monoazo and disazo colorants |
Nov. 1, 1983 |
| 4376729 |
Novel monoazo and disazo colorants |
Mar. 15, 1983 |
| 4221562 |
Bleed-fast cationic dyestuffs |
Sep. 9, 1980 |
| 4217272 |
Novel monoazo and disazo colorants from aminoalkylanilines and bis(aminoalkyl)anilines |
Aug. 12, 1980 |
| 4153598 |
Monoazo and diazo colorants from aminoalkylanilines and bis(aminoalkyl)anilines |
May. 8, 1979 |
| 4124582 |
Process for the purification of azo pigments by stirring an aqueous, alkaline suspension of crude pigment |
Nov. 7, 1978 |
| 4083681 |
Compositions of metal complexes of disazo acid dyes stabilized with amino ethers |
Apr. 11, 1978 |
| 4048152 |
Modified form of disazo pigment CI 20040 |
Sep. 13, 1977 |
| 3971739 |
Tri or tetradentate metal azo pigment complexes |
Jul. 27, 1976 |
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