Patents
Patents for C07C 63 - Compounds having carboxyl groups bound to carbon atoms of six-membered aromatic rings (6,553)
12/1992
12/15/1992US5171881 Liquid phase catalytic oxidation of pseudocumene in acetic acid in two stages with different temperatures and catalyst compositions
12/10/1992WO1992021645A1 Process for preparing purified dimethyl naphthalenedicarboxylate
12/10/1992WO1992021644A1 Ltb4 synthesis inhibitors
12/10/1992WO1992021643A1 Azulenic retinoid compounds, compositions and methods
12/09/1992CN1066841A Improved process for recovery of purified terephthalic acid
12/03/1992DE4217563A1 New tert.-butyl-fluorene cpds. - useful as antiviral and fluorenyl-metallocene intermediates and as polyamide and polyurea monomers
12/01/1992CA1310977C Process for the manufacture of benzoic acid and salts thereof
11/1992
11/25/1992EP0514863A2 Process for preparing 3,4,6-trifluorophthalic acid and its anhydride
11/25/1992EP0514821A1 Improved method of production of biaryl derivatives
11/25/1992CN1066440A Cyclopentadiene type compounds and method of making
11/24/1992US5166365 Chemical intermediates for polyimides or polyesterimides for polymers used in semiconductors
11/24/1992CA1310666C Process for the manufacture of derivatives of benzoic acid
11/23/1992CA2069140A1 Process for the preparation of 3,4,6-trifluorophthalic acid and the anhydride thereof
11/19/1992EP0513835A2 Process for the preparation of trimellitic acid
11/19/1992EP0513087A1 Basic calcium aluminium hydroxide dicarboxylates, process for producing them and their use
11/18/1992CN1019112B Purification of terephthalic acid to relatively low levels of 4-carboxenzaldehyde
11/12/1992WO1992019583A1 Novel aromatic and polycyclic compounds and their use in human or veterinary medecine and in cosmetics
11/12/1992CA2109425A1 Novel aromatic and polycyclic compounds and their use in human or veterinary medicine and in cosmetics
11/11/1992EP0512715A2 Verfahren zur Herstellung einer in 3-Stellung fluorierten aromatischen Verbindung
11/11/1992EP0512554A2 Cyclopetadiene type compounds and method for making
11/11/1992CN1066056A Process for preparing terephthaiate or terephthalic acid
11/10/1992US5162577 Process for lithiation of 1,3-bis(trifluoromethyl)benzene
11/10/1992US5162557 Semiconductors
10/1992
10/29/1992WO1992018454A1 Process for recovery of purified terephthalic acid
10/29/1992WO1992018453A1 Process for preparation of terephthalic acid
10/28/1992EP0510490A2 Process for preparing 2,3,4,5-tetrafluorobenzoic acid
10/28/1992EP0510082A1 Oxidized variants of gm-csf
10/27/1992US5159097 Alkenoic acid derivatives
10/27/1992US5158773 Retinoid esters
10/26/1992CA2067075A1 Process for the preparation of 2,3,4,5-tetrafluorobenzoic acid
10/20/1992US5157151 Antiinflammatory agents
10/15/1992DE4111657A1 Arylation of olefin(s)
10/15/1992DE4111653A1 Arylation of olefin(s)
10/15/1992DE4111620A1 Arylation of olefin(s)
10/14/1992EP0508264A1 Process for the arylation of olefines
10/13/1992US5155258 Intermediates for drugs, herbicides
10/06/1992US5153339 Oxidizing naphthalene and phthalic anhydride solvent extraction with hydrocarbon
10/06/1992US5153334 Partially fluorinated tetracarboxylic acid and the dianhydride thereof
10/06/1992US5152899 Purification of carboxylic acid salt solutions by permeation through semipermeable membrane of polymeric perfluorosulfonic acid salts
10/01/1992DE4127450A1 New liq. crystal and cyclohexyl-cyclohexyl di:fluoro:benzene and phenol cpds.
09/1992
09/23/1992CN1064676A Process for production of terephthalic acid
09/23/1992CN1064675A Process for production of terephthalic acid
09/16/1992CN1064477A Oxo process for organic acid with halohydrocarbon under normal pressure
09/09/1992EP0502628A2 Process for the production of terephthalic acid
09/02/1992EP0501578A1 Pyranylphenyl hydroxyalkylnaphthoic acids as inhibitors of leukotriene biosynthesis
08/1992
08/29/1992WO1992015545A1 Basic calcium aluminium hydroxide dicarboxylates, method for preparing them and use thereof
08/29/1992CA2104779A1 Basic calcium aluminum hydroxide dicarboxylates, a process for their production and their use
08/25/1992US5141959 Antiinflammatory agents
08/20/1992WO1992013928A1 Liquid-crystal compounds
08/13/1992DE4104126A1 New tri:fluoroalkyl and alkenyl ether(s) - useful as components of liq. crystal media for electro=optical displays
08/12/1992EP0498591A2 Process for the production of terephthalic acid
08/12/1992EP0498240A1 Derivatives of diphenylmethane, process for their preparation and their use in supplanting iodothyronines and the proteins binding them
08/05/1992EP0497662A1 Process for fabricating alkali metal or alkali earth metal terephtalate or of terephtalic acid having elevated purity from polyol polyterephtalate, in particular from a polyterephtalate ethylene glycol waste
08/04/1992US5136089 Acylation of alkyl aromatic hydrocarbons
08/04/1992US5136081 Fungicides
07/1992
07/31/1992CA2060411A1 Process for producing high purity alkaline or alkaline earth metal terephthalate or terephthalic acid from polyol polyterephthalate, especially from ethylene glycol polyterephthalate wastes
07/22/1992EP0495426A2 Preparation of 3,5-dichlorophthalic acid and 3,5-dichlorophthalic anhydride
07/21/1992CA1305486C Quaternary ammonium salts used as phase transfer catalyst
07/17/1992CA2054073A1 Preparation of 3,5-dichlorophthalic acid and 3,5-dichlorophthalic anhydride
07/15/1992EP0494261A1 Bioherbicide combining chemical agents and bacterial plant pathogens.
07/15/1992CN1017434B Synthesis and application of diphosphonate ester
07/01/1992CN1017240B Pyrazole derivatives and herbicides containing them
06/1992
06/30/1992US5126371 Diarylacetylenes, their preparation and their use
06/24/1992EP0491326A2 Process for the functionalization of trifluoromethylbenzenes
06/23/1992US5124473 Polycyclic aromatic derivatives, process for preparing the same and pharmaceutical and cosmetic compositions containing the same
06/21/1992WO1992011120A1 Method and apparatus for granulation
06/21/1992CA2098600A1 Method and apparatus for granulation
06/17/1992CN1061955A Continuous production of aromatic carboxylic acids
06/02/1992US5118701 Antiischemic agents, anticoagulants
06/02/1992CA1302430C Process for preparing 2,2-bis-(3-nitrophenyl)-hexafluoropropane, and 2,2-bis-(4-carboxy-3-nitrophenyl)-hexafluoropropane occurring as an intermediate
05/1992
05/30/1992WO1992009551A1 Continuous production of aromatic carboxylic acids
05/13/1992EP0484381A1 N-cyanoimides and process for their preparation and uses thereof
05/12/1992US5113013 Process for preparing fluorine-containing organic compounds
05/05/1992US5110983 Hexafluoroisopropyl-containing monomers, process for their preparation and their use
04/1992
04/29/1992CN1060650A Combined method producing para-chlorobenzoic aldehyde, para-chlorobenzoic acid chloride
04/29/1992CN1016456B Seal for rotatable shaft
04/15/1992EP0480266A2 Perfluorinated polyimide, perfluorinated poly(amic acid), starting compounds therefor, and methods for preparing them
04/14/1992CA1298837C N-alkenyl-3-hydroxybenzo¬b|thiophene-2- carboxamide derivatives as dualcyclooxygenase and lipoxygenase inhibitors
04/07/1992US5102630 Apparatus for increasing yield and product quality while reducing power costs in oxidation of an aromatic alkyl to an aromatic carboxylic acid
04/02/1992WO1992005139A1 Process for manufacture of 3,3',4,4'-biphenyltetracarboxylic acid
03/1992
03/31/1992US5100592 Heated rotary spreaders, two feed streams, melting and coating powders
03/31/1992CA1298309C Benzocycloheptene derivatives
03/31/1992CA1298292C Aromatic compounds, their preparation process and their use in cosmetic
03/25/1992EP0476682A1 Isoprenoid phospholipase A2 inhibitors and preparations comprising same
03/25/1992EP0476009A1 Extraction process for removal of impurities from terephthalic acid filtrate.
03/24/1992US5098991 Process of preparing polyamide-imide and polyimide polymers from acid anhydrides and dianhydrides of disubstituted maleic anhydrides
03/24/1992US5098895 Benzonaphthalene derivatives, a process for their preparation and their use in therapeutic and cosmetic compositions
03/24/1992CA1297900C Preparation of (z)-2-(2-arylethenyl)arylcarboxylic acids
03/22/1992CA2051766A1 Isoprenoid phospholipase a2 inhibitors and preparations comprising same
03/18/1992EP0475926A2 Oxidation of dialkyl polyaromatics to dicarboxypolyaromatics
03/18/1992EP0475238A2 Mesogenic glycidyl esters
03/18/1992EP0195785B1 Polymeric composition derived from poly(arylcyclobutenes) and a process for preparing said polymeric composition
03/18/1992CN1059525A Deprotection of allylic esters and ethers
03/17/1992US5097068 Trisubstituted benzoic acid intermediates
03/14/1992CA2051241A1 Mesogenic glycidyl esters
03/11/1992CA2050866A1 Oxidation of dialkyl polyaromatics to dicarboxypolyaromatics
03/10/1992US5095144 Process for dimerizing aromatic halogen compound
03/10/1992CA1297127C2 Polycyclical aromatic derivatives and cosmetic use
03/10/1992CA1297125C Naphthylaromatic compounds; process for preparing the same and their use in cosmetics
03/10/1992CA1297098C Substituted aromatic compounds and preparation process thereof
1 ... 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 ... 66