Patents
Patents for C07C 63 - Compounds having carboxyl groups bound to carbon atoms of six-membered aromatic rings (6,553)
06/1994
06/01/1994EP0370083B1 Seal for rotatable shaft
05/1994
05/30/1994CA2110085A1 Process for the preparation of halogenated benzoic acids
05/25/1994CN1024660C Oxidation process for mfg. aromatic acids from alkylaromatic compounds
05/18/1994EP0597751A1 Process for recovery of alkali metal or alkali earth metal terephtalate and alkylene glycol from alkylene polyterephtalates
05/17/1994US5312941 Preparation from dicarboxylic acid, calcium hydroxide and/or oxide, and hydroxides of aluminum and sodium or sodium aluminate; use to stabilize halogen-containing thermoplastic resins
05/17/1994US5312936 Angiotensin II antagonists
05/17/1994CA1329620C Ethynylphenyl-containing retinoic acid derivatives
05/11/1994WO1994010121A1 Depolymerization of substantially amorphous polyesters
05/11/1994CA2145747A1 Depolymerization of substantially amorphous polyesters
05/10/1994CA2102766A1 Enhanced process for the recuperation of alkaline or alkaline earth metal terephtalate and of alkyleneglycol from alkylene polyterephtalates
05/04/1994CN1024415C Process for the preparation of benzoic acid derivatives
05/04/1994CN1024414C Method and apparatus for increasing yield and product quality while reducing power costs in oxidation of aromatic alkyl to aromatic acid
04/1994
04/27/1994CN1085905A Organic cerium (IV) compounds and their preparation and use
04/27/1994CN1085891A Process for the production of purified terephthalic acid
04/27/1994CN1085889A Process for the production of purified terephthalic acid
04/20/1994EP0464046B1 Process for manufacturing a dmt intermediate product of given purity and subsequent processing thereof to obtain ultrapure dmt and/or medium- or high-purity terephthalic acid
04/20/1994CN1085541A Technology for preparing powdered benzene diformate of alkali metal
04/19/1994US5304676 Process for the production of terephthalic acid
04/19/1994CA1328611C Pharmaceutical compositions comprising at least one aromatic compound as active principle
04/19/1994CA1328605C Medicinal composition useful for the treatment of dermatological diseases
04/12/1994US5302596 Tricyclic compounds as TXA2 antagonists
04/12/1994CA1328466C Trifluorobenzene compounds and process for producing the same
04/06/1994CN1084845A Bromine catalysed oxidation processes
03/1994
03/30/1994EP0588915A1 Azulenic retinoid compounds, compositions and methods
03/29/1994CA1328115C Method for making 2,6-naphthalenedicarboxylic acid
03/23/1994CN1084160A Process for the preparation of cyclopentene, cyclopentane and cyclohexane derivatives
03/17/1994WO1993025530A3 Vinyl arenas having retinoid-like activity
03/15/1994US5294738 Process for selective hydrodefluorination
03/15/1994US5294732 Polysubstituted fullerenes and their preparation
03/15/1994US5294721 Reacting a halonitrobenzene and a pyridinium salt
03/08/1994US5292949 From acyl halide and acid anhydride
03/08/1994US5292936 Contacting an aqueous solution of an amino alcohol with an alkali metal hydroxide in the presence of a raney copper catalyst
03/03/1994WO1994004502A1 Pyridinium intermediates and the process for preparing the same
03/03/1994WO1994004481A1 Process for preparing 2,5-diphenylterephthalic acid
03/03/1994WO1994004480A1 Process for preparing phenylterephthalic acid
03/03/1994CA2140027A1 Process for 2,5-diphenylterephthalic acid
03/02/1994EP0584191A1 Novel aromatic and polycyclic compounds and their use in human or veterinary medecine and in cosmetics.
03/01/1994US5290817 Antiinflammatory, antiallergenic agents
02/1994
02/23/1994EP0583888A1 Water-dispersible UV light-absorbing copolymer
02/23/1994EP0583705A1 Process for the preparation of 2,3,4-trichloro-5-fluoro-benzoylchloride
02/22/1994US5288914 Poly(arylcyclobutenes)
02/22/1994US5288908 Process for the preparation of fluorine containing monomers
02/16/1994CN1082023A Pharmaceutic containing derivate of benzoic acid and novel derivate of benzoic acid
02/15/1994US5286896 Oxidizing mixture of para-xylene and methyl para-toluate in liquid phase with oxygen gas, esterifying with methanol, distilling, recrystallizing dimethyl terephthalate
02/15/1994CA1327052C Tritium-marked compound, preparation thereof and its use namely for determining the affinity of retinoids with their nuclear receptor and their cytosol binding protein
02/15/1994CA1327049C Process for obtaining substituted fluorobenzenes
02/08/1994CA1326860C Method for making 2,6-naphthalene dicarboxylic acid
01/1994
01/31/1994CA2099625A1 High loading water-dispersible uva and/or uvb light-absorbing copolymer
01/26/1994EP0579716A1 Process for preparation of terephthalic acid.
01/26/1994EP0579715A1 Process for recovery of purified terephthalic acid.
01/20/1994WO1994001388A1 Cyclobutabenzene monomers and methods of making and using same
01/13/1994DE4222371A1 New liq. crystal cpds. with terminal chloro or mono-, di- or tri-fluoro gp. - having low viscosity, relatively high dielectric ansiotropy and nematogenity, good performance at low tenmps. and good suppression of smectic phases
01/12/1994EP0578369A2 Production process of 1,4,5,8-naphthalene tetracarboxylic acid
01/12/1994EP0578165A1 Process for the preparation of tetrafluorophthalic acid and/or tetrafluorophthalic anhydride
01/12/1994EP0229757B1 A method of bonding two substrates using arylcyclobutene monomeric compositions
01/12/1994CN1080646A Crosslinking agent and curable composition
01/11/1994US5278321 Process for simultaneously producing lactone and aromatic carboxylic acid
01/11/1994CA2100198A1 Process for the preparation of tetrafluorophthalic acid and/or tetrafluorophthalic anhydride
01/06/1994WO1994000413A1 Method for preparing aromatic carboxylic acids
01/06/1994CA2115451A1 Method for preparing aromatic carboxylic acids
01/04/1994US5276128 Polybenzoxazoles or polybenzthiazoles as dopes for fibers or films
12/1993
12/28/1993US5274126 Oxidizing 4,4'-bis(2-(3,4-dialkylphenyl)hexafluoro isopropyl)biphenyl in the presence of heavy metals salts and bromide ions in a monocarboxylic acid medium
12/23/1993WO1993025530A2 Vinyl arenas having retinoid-like activity
12/23/1993WO1993025223A1 Rxr homodimer formation
12/23/1993CA2137819A1 Vinyl arenas having retinoid-like activity
12/22/1993EP0575189A1 Organic cerium (IV) compounds and their preparation and use
12/21/1993US5271855 Use of metal soaps of polycarboxylic acids or polycarboxylic acid partial esters as processing aids for polyesters
12/18/1993CA2098666A1 Organic cerium (iv) compounds and their preparation and use
12/15/1993EP0573475A1 Basic calcium aluminium hydroxide dicarboxylates, method for preparing them and use thereof.
12/15/1993CN1079461A Refinement of acetic acid by ethyl aldehyde oxidation process
12/15/1993CN1023118C Process for preparation of monomer containing fluorine
12/15/1993CN1023117C Preparation of biphthalic acid by phase-transfer catalyzed oxidation method from phenanthrene
12/09/1993WO1993024442A1 Medicine containing benzoic acid derivative and novel benzoic acid derivative
12/09/1993WO1993024441A1 Process for the production of purified terephthalic acid
12/09/1993WO1993024440A1 Process for the production of purified terephthalic acid
12/09/1993CA2136621A1 Process for the production of purified terephthalic acid
12/09/1993CA2134873A1 Process for the production of purified terephthalic acid
12/08/1993EP0572628A1 Process for preparing purified 2,6-naphthalenedicarboxylic acid.
12/08/1993EP0407588B1 Process for producing 2-oxo-3-aromatic carboxylic acid derivatives
12/07/1993CA1325018C Process for the preparation of benzoic acid derivatives
11/1993
11/25/1993WO1993023359A1 Bromine catalysed oxidation processes
11/23/1993US5264610 Iodinated aromatic propanedioates
11/23/1993US5264598 Fluorine containing epoxy resins and polyimides, nonhygroscopic
11/18/1993EP0569620A1 Method of making 2,4,5-trihalobenzoic acid
11/16/1993US5262560 Process for preparing purified dimethyl naphthalenedicarboxylate
11/12/1993CA2083250A1 Method of making 2,4,5-trihalobenzoic acid
11/09/1993USRE34440 Treatment of dermatological diseases and degeneration of conjunctive tissues; antitumor agent
11/02/1993US5258530 Process for producing biphenyltetracarboxylic dianhydride
10/1993
10/28/1993WO1993021146A1 Compounds having selectivity for retinoid x receptors
10/26/1993US5256694 Diarylacetylenes, their preparation and their use
10/21/1993DE4312182A1 Star-shaped nylon molecules - have three or more polymer chains radiating from central aromatic ring
10/20/1993EP0566268A1 Process for the preparation of 3- or 5-fluoroaromatic compounds
10/19/1993US5254796 Oxidation process
10/19/1993US5254666 Heating polyester with alkali metal or alkaline earth metal hydroxide, acidifying
10/14/1993DE4307243A1 Prepn. of di:aryl cpds. useful for producing liquid crystal cpds. - involves coupling of aryl halide(s) with aromatic boron acid derivs. using palladium catalyst
10/13/1993EP0565132A2 Benzoheterocyclic compounds
10/13/1993CN1077191A Process for selective hydrodefluorination
10/06/1993EP0563986A2 Process for selective hydrodefluorination
10/06/1993EP0563302A1 Method and apparatus for granulation
10/06/1993CN1022318C Process for the production of trimellitic anhydride and pyromellitic dianhydride
1 ... 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 ... 66