Patents
Patents for C07C 67 - Preparation of carboxylic acid esters (66,429)
01/1991
01/16/1991EP0407811A2 Process for producing methyl methacrylate
01/16/1991EP0407687A1 Process for hydroformylation
01/16/1991EP0232385B1 Novel motor fuel alkylation catalyst and process for the use thereof
01/16/1991EP0214147B1 Crystalline magnesia-silica composites and process for producing same
01/16/1991CN1048542A Kind of production method of dimethyl ester terephthalic acid
01/16/1991CN1048541A Process for producing haloalkyl alkanoates
01/16/1991CN1011232B Improved aldehyde hydrogenation catalyst and process
01/15/1991WO1991001405A1 Process for processing waste paper
01/15/1991WO1991001291A1 Alkoxylation products of carboxylic acids and/or carboxylic acid derivatives containing oh groups
01/15/1991US4985595 Aminobenzamide derivatives
01/15/1991US4985587 Reaction products of p-vinylphenol and polyisocyanates
01/15/1991US4985586 Process for the preparation of mercaptoalcohols
01/15/1991US4985581 Catalyst and process for producing aromatic nitriles
01/15/1991US4985572 Catalyzed hydrogenation of carboxylic acids and their anhydrides to alcohols and/or esters
01/15/1991US4985570 Production of tetrahydrophthalimide compound
01/15/1991US4985463 Aminodiaryl sulfoxide derivatives, process for their preparation and pharmaceutical and pesticidal compositions containing them
01/15/1991US4985427 Triazine derivatives
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
01/15/1991US4985357 Yeasts, fungi, protozoa
01/15/1991US4985214 Chlorinating reactor
01/15/1991CA2064203A1 Alkoxylation products of carboxylic acids and/or carboxylic acid derivatives containing oh groups
01/15/1991CA2064201A1 Process for processing waste paper
01/15/1991CA1279069C Perfluoro-1,1-di(orthoxylyl) alkyl compounds
01/15/1991CA1279068C Catalytic process for the manufacture of oximes
01/15/1991CA1279065C Crosslinkable polycyclic polycarbonate oligomers and methods for their preparation and use
01/15/1991CA1279059C Carbamate additives for functional fluids
01/10/1991WO1991000143A1 Oxidic heterogeneous catalysts of osmium, method for manufacturing them and their use in converting olefinic compounds into glycols
01/09/1991EP0406848A1 Production of aromatic aldehydes
01/09/1991EP0406767A2 Method for production of an ester of a C22-C40 monocarboxylic acid
01/09/1991EP0406742A1 Process for the preparation of cis-dihydronopol
01/09/1991EP0406676A2 Process for producing methyl methacrylate
01/09/1991EP0406660A1 A process for producing haloalkyl alkanoates
01/09/1991EP0406266A1 Process for the co-production of aromatic carboxylates and alkyl iodides.
01/08/1991US4983781 Process for the preparation of 4,4'-dibromobiphenyl in a solvent medium and with a catalyst
01/08/1991US4983778 And sulfuric acid, alkanesulfonic acid or hydroxyarylsulfonic acids
01/08/1991US4983777 Diisopropylbiphenyl mono- and di-hydroperoxides, process for the preparation thereof, and compounds derived therefrom
01/08/1991US4983776 Process for the preparation of functional fluoro derivatives
01/08/1991US4983769 Perfluoroalkylamine oxides and use of these products in fire extinguishing compositions
01/08/1991US4983762 Preparation of biureto polyisocyanates
01/08/1991US4983761 Ester interchange of methyl (meth)acrylate with alcohol; flash distillation
01/08/1991US4983759 REACTING A BUTYRONITRILE DERIVATIVE WITH a-HALOACETATE
01/08/1991US4983757 Process for production of carboxylic acid esters and formamide
01/08/1991US4983756 Novel choline derivative and method for detemining serum cholinesterase activity using the same
01/08/1991US4983755 Nematocides
01/08/1991US4983739 Optically active styrene compounds
01/08/1991US4983630 2,2-difluorocyclopropylethane derivatives, processes for their preparation and their use as pesticides
01/08/1991US4983329 Preparation of esterified propoxylated glycerin from free fatty acids
01/08/1991US4983328 N-(4-(3-aminopropyl)aminobutyl)-2-(ω-guanidino-fatty-acid-amido(-2-substituted-ethanamide, salt thereof, and process for preparation thereof
01/07/1991CA2019465A1 Process for producing haloalkyl alkanoates
01/05/1991WO1991000260A1 Substituted bicycloheptandione derivatives
01/05/1991CA2020301A1 Process for the preparation of an ester of a c -c -monocarboxylic acid
01/03/1991DE3920917A1 Oxidische heterogenkatalysatoren des osmiums, verfahren zu ihrer herstellung und ihre verwendung fuer die ueberfuehrung von olefinischen verbindungen in glykole Oxidic heterogeneous catalysts of osmium, process for their production and their use for the Overpass of olefinic compounds in glycols
01/02/1991EP0405928A1 Process for producing 1,4-dihydroxy-2-arylnaphthoate
01/02/1991EP0405389A1 Process for producing an aromatic compound
01/02/1991EP0405332A1 Method for producing an ester
01/02/1991EP0404938A1 1 beta,7,8-TRIHYDROXYVITAMIN D 2, 1 beta,7,8-TRIHYDROXYVITAMIN D 3 OR THEIR DERIVATIVES, AND PROCESS FOR THEIR PREPARATION
01/02/1991EP0404936A1 Preparation of vitamin d2 and vitamin d3, or active vitamin d2 and active vitamin d3, or their derivatives
01/02/1991EP0144396B1 Polyhydroxybenzoic acid derivatives
01/02/1991CA1278639C Vinyl chloride monomer stripping process
01/02/1991CA1278638C Process for continuously removing monomers from an aqueous dispersion of a polymer
01/02/1991CA1278580C Perfluoroalkanes and haloperfluoroalkanes, their precursors and process for their synthesis
01/02/1991CA1278579C Process for the preparation of (2,2)- paracyclophane and derivatives thereof
01/02/1991CA1278578C Organic solvent soluble polyvalent metal alkoxy alkoxides
01/02/1991CA1278577C Bicyclic sulfonamide derivatives
01/01/1991US4982047 Chemical process and catalyst
01/01/1991US4982046 Olefin oligomerization
01/01/1991US4982037 Process for selectively alkylating biphenyl
01/01/1991US4982020 Oxides of copper, barium, chromium as catalyst
01/01/1991US4982018 Removal of cyclohexanol from aqueous solutions containing it and aromatic sulfonic acids
01/01/1991US4982017 Composition for use in organolithium synthesis reactions
01/01/1991US4982013 Zeolite catalyst
01/01/1991US4982011 Hydrogenation, distillation, catalytic cracking
01/01/1991US4982008 Bromination, by-product inhibition
01/01/1991US4982007 Carbonylation catalyst
01/01/1991US4981993 Polyfunctional ethylenic monomers
01/01/1991US4981990 Intermediates in the preparation of 4-phenylpyrrole derivatives
01/01/1991US4981982 Neutralization
01/01/1991US4981973 Bronsted acid, ruthenium catalyst
01/01/1991US4981972 Process for producing oxazolone derivatives
01/01/1991US4981963 Alcohol or amine reacted with n,n*-diacetyloxamide
01/01/1991US4981869 Xanthates as antitumor agents
01/01/1991US4981854 Bactericides, animal growth regualtors
01/01/1991US4981830 Oxidation, dehydrogenation, ammoxidation
01/01/1991US4981829 Catalyst
01/01/1991US4981619 Process for preparing alpha-hydroxy acids
01/01/1991US4981489 Disazo compounds and formulations containing same
01/01/1991US4981486 Washfast, lightfast; for bleached or permed hair
12/1990
12/27/1990EP0404672A1 Terpene derivatives, their preparation and use
12/27/1990EP0404643A1 Method for removing mercaptans
12/27/1990EP0403950A1 Method for the production of vinyl acetate
12/27/1990EP0403672A1 Method of inhibiting polymerization of styrenes
12/27/1990EP0403543A1 Polyfunctional vinyl ether terminated ester oligomers.
12/27/1990EP0198892B1 Method for preparing 1-hydroxyvitamin d compounds
12/27/1990CA1278316C2 L-alkoxy-3-methylhexa-1,3,5-triene derivatives and their use for preparing polyenic aldehydes
12/27/1990CA1278315C Method and apparatus for removing water from ethanol
12/27/1990CA1278314C Process for preparing hydroxynaphthalenes
12/27/1990CA1278313C Nitrogen-containing additives for non-aqueous functional fluids
12/27/1990CA1278312C Process for one step esterification using an intermetallic palladium based catalyst system
12/27/1990CA1278310C Process for preparing retinoyl chlorides
12/27/1990CA1278309C Preparation of polyenic aldehydes