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Class Information
Number: 534/748
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 amino nitrogens bonded directly to a benzene ring which is between the azo groups
Description: Compounds wherein between the azo groups is a benzene ring to which at least two amino nitrogens are bonded directly.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6756486 |
Non-migrating metallized disazo green shade yellow pigment |
Jun. 29, 2004 |
| 6504045 |
Crystal polymorphs of a yellow disazo colorant, and their preparation |
Jan. 7, 2003 |
| 6437104 |
Preparation of disazo condensation pigments in microreactors |
Aug. 20, 2002 |
| 5889162 |
Strong green-shade yellow disazo pigment |
Mar. 30, 1999 |
| 5559216 |
Single-step process for the preparation of bis-(acetoacetylamino) benzene disazo pigments |
Sep. 24, 1996 |
| 5298609 |
Disazo compounds containing cycloalkyl ester or cycloalkylamide groups |
Mar. 29, 1994 |
| 5266110 |
Crystal modification of C.I. Pigment Yellow 16 |
Nov. 30, 1993 |
| 5185435 |
Process for the preparation of bisazo pigments in halogen-free solvents |
Feb. 9, 1993 |
| 5062894 |
Poly (alkylene oxide)-modified diarylide pigment composition |
Nov. 5, 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 |
| 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 |
| 4946509 |
Diarylide pigment compositions |
Aug. 7, 1990 |
| 4946508 |
Disazo pyrazolone pigment compositions |
Aug. 7, 1990 |
| 4557732 |
Process for spin-dyeing of acid-modified polymers of acrylonitrile by the wet-spinning procedure using quaternary ammonium or cyclammonium dyestuffs of low M value and high cation weight havin |
Dec. 10, 1985 |
| 4544736 |
1,4-Di-[2'-(2",4"-dichlorophenylazo)-3'-oxobutyramido]-2-methoxybenzene |
Oct. 1, 1985 |
| 4540775 |
1,4-Di-[2'-(2",4"-dichlorophenylazo)acetoacetamido]-2,5-dimethylbenzene |
Sep. 10, 1985 |
| 4272298 |
Process for conditioning a pigment in liquid ammonia |
Jun. 9, 1981 |
| 4081439 |
Aromatic disazo pigments |
Mar. 28, 1978 |
| 4070353 |
Dicarboxylic acid ester diazo pigments |
Jan. 24, 1978 |
| 4065449 |
Tetrachloro substituted disazo pigments |
Dec. 27, 1977 |
| 4065448 |
Tertiary alkyl substituted disazo pigments |
Dec. 27, 1977 |
| 4062838 |
Disazo pigments containing acylamino groups |
Dec. 13, 1977 |
| 4055559 |
Disazo pigment containing at least 2 chlorine atoms and process for their manufacture |
Oct. 25, 1977 |
| 4051122 |
Disazo pigments containing tetracarboxylic acid ester groups |
Sep. 27, 1977 |
| 4003886 |
Tetracarboxylic acid ester substituted disazo pigments |
Jan. 18, 1977 |
| 3997521 |
Bis-(dialkoxycarbonylphenylazo)acetoacetamidoarylenes |
Dec. 14, 1976 |
| 3978038 |
Disazo pigments containing at least one nitro group on the diazo component |
Aug. 31, 1976 |
| 3951943 |
Coupling process in the preparation of disazo diimides |
Apr. 20, 1976 |
| 3935182 |
Water-soluble quaternary ammonium heterocyclic azo dyestuffs |
Jan. 27, 1976 |
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