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Class Information
Number: 562/480
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Carboxylic acids and salts thereof > Aromatic > Polycarboxylic acids or salts thereof
Description: Compounds wherein the acid contains more than one carboxyl group.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7550627 |
Processes for producing aromatic dicarboxylic acids |
Jun. 23, 2009 |
| 7425650 |
Synthesis of asymmetric tetracarboxylic acids and corresponding dianhydrides |
Sep. 16, 2008 |
| 7411100 |
Process for the preparation of ring compounds |
Aug. 12, 2008 |
| 7378547 |
Process for the synthesis of hydroxy aromatic acids |
May. 27, 2008 |
| 7358391 |
Process for the synthesis of hydroxy aromatic acids |
Apr. 15, 2008 |
| 7355070 |
Process for the synthesis of 2,5-dihydroxyterephthalic acid |
Apr. 8, 2008 |
| 7348452 |
Liquid phase oxidation of P-xylene to terephthalic acid in the presence of a catalyst system containing nickel, manganese, and bromine atoms |
Mar. 25, 2008 |
| 7169955 |
Perfluoroisopropylbenzene derivative |
Jan. 30, 2007 |
| 7115541 |
Catalyst comprising n-substituted cyclic imides and processes for preparing organic compounds with the catalyst |
Oct. 3, 2006 |
| 7019165 |
Polyoxometallate catalysts and catalytic processes |
Mar. 28, 2006 |
| 6867322 |
Ester-forming monomer |
Mar. 15, 2005 |
| 6855845 |
Process for the preparing bromoisophithalic acid compound |
Feb. 15, 2005 |
| 6765113 |
Production of aromatic carboxylic acids |
Jul. 20, 2004 |
| 6723873 |
Production of terephthalic acid and ethylene glycol from polyethlene terephthalate by ammoniolysis |
Apr. 20, 2004 |
| 6720448 |
Method of recovering chemical species by depolymerization of poly (ethylene terephthalate) and related use |
Apr. 13, 2004 |
| 6703422 |
Sulfide and disulfide compounds and compositions for cholesterol management and related uses |
Mar. 9, 2004 |
| 6689898 |
Antihistaminic piperidine derivatives and intermediates for the preparation thereof |
Feb. 10, 2004 |
| 6683208 |
Optically active diphosphines, preparation thereof according to a process for the resolution of the racemic mixture and use thereof |
Jan. 27, 2004 |
| 6670503 |
Method for recovery of terephthalic acid from a material containing poly(ethylene terephthalates) |
Dec. 30, 2003 |
| 6657077 |
Method for producing a purified alkaline metal terephthalate, derived from the products of saponification of polyterephthalates |
Dec. 2, 2003 |
| 6620954 |
Phosphinometallocenylamides as novel ligands for asymmetric catalysis |
Sep. 16, 2003 |
| 6617414 |
Aromatic diamine/aromatic dicarboxylate and production method thereof |
Sep. 9, 2003 |
| 6610875 |
Method for preparing chiral diphosphines |
Aug. 26, 2003 |
| 6566548 |
Molecular compounds containing novel carboxylic acid derivatives as the constituent compound |
May. 20, 2003 |
| 6562998 |
Granules of 2-hydroxynaphthalene-3-carboxylic acid and method for preparing the same |
May. 13, 2003 |
| 6562996 |
Alkyl aromatic aldehydes |
May. 13, 2003 |
| 6562999 |
Process for separation of crude naphthalene dicarboxylic acid using reverse osmosis |
May. 13, 2003 |
| 6521786 |
Process for the production of aromatic acids |
Feb. 18, 2003 |
| 6388123 |
Substituted phenyl keto enols as pesticides and herbicides |
May. 14, 2002 |
| 6362365 |
Preparation of trifluorobenzoic acids |
Mar. 26, 2002 |
| 6320083 |
Process for making aromatic aldehydes using ionic liquids |
Nov. 20, 2001 |
| 6303827 |
Process for making aromatic aldehydes |
Oct. 16, 2001 |
| 6248879 |
Polyanhydride crosslinked fibrous cellulosic products and process for their preparation |
Jun. 19, 2001 |
| 6143905 |
1,7-diaroxy- or 1,7-arylthio-substituted perylene-3,4,9,10-tetracarboxylic acids, their dianhydrides and diimides |
Nov. 7, 2000 |
| 6103919 |
Catalytic system and method for coupling of aromatic compounds |
Aug. 15, 2000 |
| 6037493 |
Optically active diphosphines, preparation thereof according to a process for the resolution of the racemic mixture and use thereof |
Mar. 14, 2000 |
| 6001877 |
Phenylalkan(en)oic acid |
Dec. 14, 1999 |
| 5981739 |
Polyanhydride crosslinked fibrous cellulosic products and process for their preparation |
Nov. 9, 1999 |
| 5965741 |
Ortho-substituted aromatic ether compounds and their use in pharmaceutical compositions for pain relief |
Oct. 12, 1999 |
| 5783593 |
Inhibitors of squalene synthetase and protein farnesyltransferase |
Jul. 21, 1998 |
| 5750731 |
Perfluorinated aromatic compounds |
May. 12, 1998 |
| 5723658 |
Process for the preparation of salts of substituted or unsubstituted phthalic acids |
Mar. 3, 1998 |
| 5618839 |
Retinoid-like compounds |
Apr. 8, 1997 |
| 5557009 |
Process for preparing an aqueous slurry of terephthalic acid |
Sep. 17, 1996 |
| 5545746 |
Method for recovery of alkali metal or alkaline-earth metal terephthalate and of alkylene glycol from polyethylene terephthalates |
Aug. 13, 1996 |
| 5523476 |
Processes for producing tetrafluorophthalic anhydride and fluorobenzoic acids |
Jun. 4, 1996 |
| 5453538 |
Process for the manufacture of aromatic dicarboxylic acids utilizing cerium to facilitate a low bromine to metals catalyst ratio |
Sep. 26, 1995 |
| 5430181 |
Process for improving a controlled oxidation reaction |
Jul. 4, 1995 |
| 5410078 |
Styrene-based dicarboxylic acid-functional monomers and polymers prepared from same |
Apr. 25, 1995 |
| 5405995 |
Difluorophthalic compounds and their preparation |
Apr. 11, 1995 |
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