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Class Information
Number: 534/728
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Azo > Amine salt
Description: Compounds which are amine addition salts of an azo compound.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7470780 |
Dyes that are soluble in organic solvents |
Dec. 30, 2008 |
| 6632932 |
Trisazo compound |
Oct. 14, 2003 |
| 6451989 |
Black azo dyes |
Sep. 17, 2002 |
| 6320031 |
Monoazo dyes and their preparation and use |
Nov. 20, 2001 |
| 6288217 |
Black azo dyes |
Sep. 11, 2001 |
| 6160169 |
Preparation of amine salts of 4-nitrotoluene-2-sulfonic acid |
Dec. 12, 2000 |
| 6130319 |
Methods of making cationic azo dye compounds having flocculating properties using reactive dyes |
Oct. 10, 2000 |
| 6084078 |
Disazo dyestuffs for dyeing cellulosic materials |
Jul. 4, 2000 |
| 6031083 |
Disazo dyestuffs |
Feb. 29, 2000 |
| 5997628 |
Heat stable laked monoazo pigment compositions |
Dec. 7, 1999 |
| 5986075 |
Process for the production of diazonium compounds with a low content of sodium ions |
Nov. 16, 1999 |
| 5965716 |
Dyestuff salts containing a cationic group derived from a sterically hindered amine |
Oct. 12, 1999 |
| 5919915 |
Azo pyrazolone pigments |
Jul. 6, 1999 |
| 5892105 |
Preparation of amine salts of 4-nitrotoluene-2-sulfonic acid |
Apr. 6, 1999 |
| 5834600 |
Hydrophobic cationic dyes and thermal transfer ink ribbons using the same |
Nov. 10, 1998 |
| 5770708 |
Preparation of phenylazonaphthalenes |
Jun. 23, 1998 |
| 5744590 |
Monoazo pigments |
Apr. 28, 1998 |
| 5684140 |
Dyes for ink jet printing |
Nov. 4, 1997 |
| 5616694 |
Azo compound |
Apr. 1, 1997 |
| 5597387 |
Water-soluble polyazo dyestuffs |
Jan. 28, 1997 |
| 5571899 |
Salts of metal-free anionic substituted-2-hydroxy-1-phenylazonaphthalene dyes having cations containing sterically hindered amine groups |
Nov. 5, 1996 |
| RE35359 |
Amine salts of azo pigments based on pyrazolone derivatives |
Oct. 22, 1996 |
| 5556885 |
N-aryl- and N-heteroarylhydrazones of substituted thioacids and the s-oxides thereof as insecticidal and acaricidal agents |
Sep. 17, 1996 |
| 5554735 |
Azo oxime ethers and their use as fungicides |
Sep. 10, 1996 |
| 5523387 |
Mass dyeing of synthetic polymers with dyes in salt form |
Jun. 4, 1996 |
| 5519121 |
Triazinyl-amino bridge-containing disazo dyestuffs |
May. 21, 1996 |
| 5510467 |
Salts of metal-free anionic phenylazopyrazolone dyes having cations containing sterically hindered amine groups |
Apr. 23, 1996 |
| 5486601 |
Trisazo dye, and aqueous ink composition containing the same |
Jan. 23, 1996 |
| 5473053 |
Magenta poly-azo compounds |
Dec. 5, 1995 |
| 5453495 |
Disazo compounds containing an optionally substituted piperazinyl group |
Sep. 26, 1995 |
| 5446134 |
Bis(perfluorosulfonyl)methane salts, and a process for preparing same |
Aug. 29, 1995 |
| 5378269 |
Recording liquids for ink-jet recording |
Jan. 3, 1995 |
| 5366543 |
Alcohol-soluble dye and ink composition containing the same |
Nov. 22, 1994 |
| 5359064 |
Salts of triazine derivatives with oxygenated acids of phosphorus |
Oct. 25, 1994 |
| 5340929 |
Trisazo dye and dye composition containing the same |
Aug. 23, 1994 |
| 5336763 |
Trisazo dye and dye composition containing the same |
Aug. 9, 1994 |
| 5330542 |
Dye-incorporated composition |
Jul. 19, 1994 |
| 5262527 |
Disazo dyes suitable for use in ink jet printing |
Nov. 16, 1993 |
| 5258505 |
Trisazo compounds, and dye compositions containing same |
Nov. 2, 1993 |
| 5254674 |
Diaminoazothiophene compound and a method for preparing the same |
Oct. 19, 1993 |
| 5241058 |
Azo dye salts useful as masking couplers and preparation thereof |
Aug. 31, 1993 |
| 5229503 |
Lysine-n-amino reactive and cysteine-mercapto reactive azo dyes |
Jul. 20, 1993 |
| 5210188 |
Dyestuffs for perfluoropolyoxyalkylenes and compositions based on perfluoropolyoxyalkylenes containing such dyestuffs |
May. 11, 1993 |
| 5175260 |
Disazo dyes with hydroxysulfonylnaphthalene coupling components |
Dec. 29, 1992 |
| 5171848 |
Salts of black trisazo dyes with alkyl amines having good solubility in organic liquids |
Dec. 15, 1992 |
| 5151505 |
Amine salts of azo pigments based on pyrazolone derivatives |
Sep. 29, 1992 |
| 5118737 |
Water-soluble dye |
Jun. 2, 1992 |
| 5091517 |
Azo dyes containing a 4-aminopyrazolisothiazole diazo compound |
Feb. 25, 1992 |
| 5071968 |
Azo dyes containing a 7-sulfoalkanoylamino-1,2,3,4-tetrahydroquinoline coupling component |
Dec. 10, 1991 |
| 5055566 |
Amine salts of disazo black dyes having good solubility in polar organic solvents |
Oct. 8, 1991 |
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