Patents
Patents for C07C 53 - Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen (9,125)
03/1991
03/06/1991EP0415214A2 Method for the production of derivatives of alpha-fluoroacrylic acid
02/1991
02/27/1991CN1049495A Butyric acid derivatives
02/26/1991US4996357 Process for preparing acetic acid
02/21/1991WO1991001962A1 Continuous process for preparation of aqueous dispersions of metal soaps
02/20/1991EP0413666A1 Butyric acid derivatives
02/20/1991EP0413264A1 Process for the preparation of chlorocarboxylic acid chlorides
02/19/1991US4994608 By-product inhibition
02/19/1991CA2023464A1 Butyric acid derivatives
02/19/1991CA1280400C Process for purifying and recovering catalyst solution contaminated during the carbonylation of methyl acetate and/or dimethylether
02/19/1991CA1280371C Botulinum toxin neutralizer
02/12/1991US4992582 Koch synthesis from propylene, carbon monoxide and water in presence of hydrogen fluoride under pressure
02/06/1991EP0411460A1 Perfumery composition comprising 2-cyclohexylpropionic acid or its derivative
01/1991
01/30/1991EP0410236A2 Process for the production of carotinoid preparations
01/29/1991US4988731 Anticonvulsants, antiepileptic agents
01/29/1991CA1279655C Process for separating iodine and its compounds from the products obtained on subjecting dimethylether, methyl acetate or methanol to a carbonylation reaction
01/23/1991EP0409689A2 A process for the purification of 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethanol
01/16/1991EP0408340A2 Ruthenium-optically active phoshine complex useful as catalyst
01/16/1991EP0408338A2 Catalytic production of carboxylic acids and esters thereof
01/16/1991CN1048539A Process and catalyst for production of ethylene and acetic acid
01/15/1991US4985594 Process for the preparation of fluorinated carboxylic acid fluorides
01/15/1991US4985383 Process for removing metallic corrosion products from a contaminated catalyst solution produced on carbonylation of methanol and/or methyl acetate and/or dimethyl ether
01/10/1991WO1991000263A1 Process for making symmetrical di-fatty acid diamides
01/09/1991EP0407091A1 Process and catalyst for the production of ethylene and acetic acid
01/08/1991US4983747 Fluorination with metal fluoride and fluorine gas
01/08/1991US4983630 2,2-difluorocyclopropylethane derivatives, processes for their preparation and their use as pesticides
01/05/1991CA2019509A1 Process and catalyst for the production of ethylene and acetic acid
01/03/1991DE4019088A1 Prepn. of symmetrical di- fatty acid di-amide - by reaction of fatty acid or ester, opt. as crude fat or oil, with di-amine
12/1990
12/19/1990EP0402646A1 Retroviral protease inhibiting compounds
12/19/1990CN1047863A 3-keto hmg-co a reductase inhibitors
12/11/1990US4976893 Platinum-catalyzed oxidation of primary alcohols
12/04/1990US4975155 Removal of iodine or iodide impurities
12/04/1990CA1277306C Process for the preparation of vanadium-containing mixed metal soap solutions
12/03/1990WO1990015112A1 Process for manufacturing crystalline calcium magnesium acetate
12/03/1990CA2056420A1 Process for manufacturing crystalline calcium magnesium acetate
11/1990
11/29/1990WO1990014073A1 Pharmaceutical preparation
11/28/1990EP0399029A1 An improved process for production of polycarboxylic aromatic acids
11/27/1990US4973748 Process for the oligomerization of hexafluoropropene oxide
11/27/1990US4973431 Process for the recovery of methyl-branched, saturated C14 -C24 -f
11/22/1990EP0398668A1 Nickel/silica catalyst and the preparation and use thereof
11/22/1990EP0398288A2 Process for preparing optically active 2-arylalkanoic acids, in particular 2-arylpropionic acids
11/22/1990EP0398287A1 Pharmaceutical preparation
11/16/1990CA2016888A1 Pharmaceutical preparation
11/16/1990CA2016887A1 Process for preparing optically active 2-aryl-alkanoic acids, in particular 2-aryl propionic acids
11/14/1990EP0397292A2 Process for producing a thin metal oxide layer on a substrate, especially glass, and its use as glazing
11/07/1990CN1046732A Process for preparing carboxylic acids
10/1990
10/31/1990EP0395455A1 Process for preparing carboxylic acids by the reaction of alkanes and formiates
10/30/1990US4966995 Process for the preparation of chlorides of carboxylic acids
10/23/1990US4965234 Supported catalyst for the preparation of monocarboxylic anhydrides
10/19/1990WO1990012779A1 Method for obtaining carboxylic acids by reaction of alkanes and formiates
10/19/1990CA2029899A1 Process for the fabrication of carboxylic acids by reacting alcanes and formates
10/18/1990WO1990011994A1 Clathrate compound of ring-substituted salicylic acid salt
10/17/1990CN1046152A Process and catalyst for dehalogenation of alpha-halogenated carboxylic acids
10/17/1990CN1010012B Preparation of formic acid
10/10/1990EP0391680A1 Process for preparing carboxylic acids
10/09/1990CA1275093A1 Carbacyclins, processes for their manufacture and their use as pharmaceuticals
10/07/1990WO1990011991A1 Process for preparing carboxylic acids
10/07/1990CA2028821A1 Process for preparing carboxylic acids
10/03/1990EP0389836A1 Process for the purification and recovery of contaminated solution of a catalyst from the carbonylation of methanol and/or methyl acetate and/or dimethyl ether
10/03/1990CN1045772A 2-halogencyclopropylethane derivates, processes of preparation and use as pesticide thereof
10/02/1990CA1274847A1 Process for the extractive separation of a carboxylic acid form an aqueous solution
09/1990
09/25/1990US4959498 Process for the preparation of monocarboxylic anhydrides
09/19/1990EP0387974A2 Derivatives of 2-halogen cyclopropyl ethane, method for their preparation and their use as pesticides
09/18/1990US4957662 Method for purifying fatty acids
09/15/1990CA2012160A1 2-halocyclopropylethane derivatives, processing for their preparation and their use as pesticides
09/12/1990EP0386886A1 Deicing compositions comprising calcium magnesium acetate and chelating agent
09/12/1990EP0386834A1 Carbonylation catalyst system
09/11/1990US4956052 Extraction water and organic compound mixture
09/05/1990CN1045096A Process for preparing carboxylie acids
09/04/1990US4954231 Functional chlorofluoro compounds and their preparation
08/1990
08/29/1990EP0384652A1 Process for preparing carboxylic acids
08/29/1990CN1044933A Salting-out process of industrial residue of 3-hydroxymethyl propane
08/28/1990US4952727 Catalytic vapor phase carbonylation of ester or ether
08/28/1990CA1273316A1 Process for neutralizing perfluoropolyethers
08/23/1990CA2009739A1 Process for preparing carboxylic acids
08/22/1990EP0383128A1 Process for the fluorination of acrylic acid and derivatives thereof, and fluorinated esters of 2,3-difluoropropionic acid
08/16/1990EP0381988A1 Process for removing metallic corrosion products from a contaminated catalyst solution used in the carbonylation of methanol and/or dimethyl acetate and/or dimethyl ether
08/09/1990WO1990006669A3 An improved process for production of polycarboxylic aromatic acids
08/09/1990DE3903664A1 Process for the preparation of formic acid from carbon monoxide and water
08/08/1990EP0380911A1 Process for the purification and recovery of a catalyst solution contaminated in the carbonylation of methanol and/or methyl acetate and/or dimethyl ether
08/08/1990CN1009084B Prepn. of bromofluoacetic acid
08/01/1990EP0380213A2 Precious metal salt solutions and precious metal catalysts
08/01/1990EP0380129A1 Process for preparing alpha-bromo-acyl-fluorides
08/01/1990EP0379971A2 Continuous process for the manufacture of isobutyric acid
07/1990
07/31/1990US4945075 Oxidative secondary rhodium recovery process
07/31/1990US4944927 Solvent extraction using acetic acid and water mixture
07/27/1990CA2006963A1 Precious metal salt solutions and precious metal catalysts
07/25/1990EP0378767A1 Method for the oligomerisation of hexafluoropropene oxide
07/25/1990CN1044090A Process for oligomerization of hexafluoropropene
07/18/1990EP0378022A1 Functional chlorofluorinated compounds and their preparation
07/14/1990CA2007685A1 Process for the oligomerization of hexafluoropropene oxide
07/11/1990CN1043695A Improved process for production of polycarboxylic aromatic acids
07/11/1990CN1043601A Low volatility salts
07/11/1990CN1008693B Catalyst recovery process
07/04/1990EP0376819A1 Acrylated polyamines, process for their preparation and their use as fungicides
07/03/1990US4939298 Isomerization of carboxylic acids
06/1990
06/28/1990WO1990006908A1 Lead/alkaline earth complexes, process for producing them and their use as stabilizers for plastics
06/28/1990WO1990006669A2 An improved process for production of polycarboxylic aromatic acids
06/27/1990EP0375624A1 Low volatility salts
06/27/1990EP0374687A2 Isomerization of carboxylic acids
06/20/1990EP0373484A1 Lead and alkaline earth complexes, process for their preparation and their use as stabilizers in plastics
1 ... 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 ... 92