Patents
Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242)
09/1993
09/02/1993CA2128788A1 Process for recycling polymers having repeating ether linkages
09/01/1993EP0558454A1 Condensates and their use as alkoxylation agents
09/01/1993EP0404931B1 Conversion of olefins to ethers
08/1993
08/25/1993EP0556218A1 Local anaesthetic.
08/25/1993EP0556174A1 Etherification process.
08/25/1993CN1021906C Method for the preparation of ethers
08/24/1993US5239112 Reacting vinyl ester and alcohol in solvent having specific dielectric constant using palladium or platinum catalyst
08/24/1993US5239055 Process for purifying perfluoro(propylvinylether)
08/24/1993US5238600 Electrooptical cells
08/24/1993US5238573 Separation of organic liquids
08/24/1993US5238541 Process for production of an ether-rich additive
08/19/1993WO1993016150A1 Composition and method for producing a multiple boiling point ether gasoline component
08/19/1993WO1993016022A1 Palladium catalyzed alkylative cyclization useful in synthesis of vitamin d and analogues
08/19/1993CA2129136A1 Palladium catalyzed alkylative cyclization useful in synthesis of vitamin d and analogues
08/18/1993EP0555592A1 Catalytic decomposition of impurities in methyl tertiary butyl ether
08/18/1993EP0555260A1 Process for the production of diaryls.
08/17/1993US5237111 Etherification, separation
08/17/1993US5237109 Reacting tertiary olefins with primary alcohols in presence of acidic ion exchange resin catalyst; yields alkyl tertiary alkyl ethers
08/17/1993US5236663 Reaction-distillation apparatus and its use
08/11/1993CA2087238A1 Removal of peroxides from a methyl tertiary butyl ether recycle stream
08/11/1993CA2079932A1 Catalytic decomposition of peroxide impurities in a methyl tertiary butyl ether recycle stream
08/10/1993US5235115 Preparation of 2-alkoxy-6-ethylnaphthalenes
08/10/1993CA1321210C Method for converting substances
08/05/1993WO1993015091A1 Diphosphine ligands
08/05/1993WO1993015090A1 Diphosphine ligands
08/03/1993US5233111 Catalytic process for selective alkylation of aromatic hydrocarbons
08/03/1993US5233094 Process for the preparation of perfluorinated ethers
08/03/1993US5233074 Process for selectively ortho-fluorinating substituted aromatic compounds
07/1993
07/28/1993EP0552645A2 Process for the conversion of chlorinated aromatic compounds using electrophiles
07/28/1993EP0525027A4 Process for recovering natural gas in the form of a normally liquid carbon containing compound
07/28/1993EP0458965A4 Process for the preparation of vinyl ethers
07/28/1993EP0416069B1 New leucotriene b 4 derivatives, a method of preparing them, and their use as drugs
07/28/1993EP0292564B1 Process for preparing alkoxyalkyl-substituted phenols
07/27/1993US5231235 Zeolite MCM-36 catalyst
07/27/1993US5231234 Acid ion exchange resin
07/27/1993US5231233 Process for the hydration of olefins
07/27/1993US5231196 Calixarene derivatives and process for the preparation thereof
07/27/1993US5230826 Electrooptics
07/27/1993US5230778 Purification of isoflurane by extractive distillation
07/21/1993CN1021651C Processing of anise camphor with high freezing point
07/20/1993US5228957 1-Pentene and/or cyclopentane
07/20/1993CA1320503C Process for the production of polyfluorinated ethers
07/14/1993EP0550866A2 Process for the preparation of vinyl-substituted aromatics from arylamines
07/14/1993EP0550611A1 Process for the production of di-trimethylolpropane.
07/14/1993CN1074208A Production of hydrofluorocarbons
07/13/1993US5227534 Ether production with multi-stage reaction of olefins
07/13/1993US5227141 Membrane catalytic reactor comprising heteropolyacid catalyst and polysulfone membrane
07/08/1993WO1993013043A1 Ether production with staged reaction of olefins
07/07/1993EP0487714A4 Selective ethylation of naphthalene compounds
07/06/1993US5225609 Production of tertiary alkyl ether using improved zeolite catalyst
07/06/1993US5225607 Multistage etherification or dehydrohalogenation and reductive dechlorination
06/1993
06/30/1993EP0548807A1 Method for preparing dihydric phenols
06/30/1993EP0548743A2 Process for the neutralization of perfluoropolyoxyalkylenes
06/30/1993EP0548104A1 Method of preparing oligoglycerine mixtures with a high diglycerine content
06/29/1993US5223642 Process for the preparation of ether carboxylic acids from carbohydrates and derivatives thereof and their use
06/25/1993CA2086163A1 Process for preparing vinyl-substituted aromatic compounds from arylamines
06/24/1993WO1993012057A1 PRODUCTION OF HYDROFLUOROCARBONS FROM α-FLUOROETHERS AND α-FLUOROETHERS
06/24/1993WO1993012056A1 Hydrocarbon lubricants containing polar groups
06/24/1993CA2124934A1 Production of hydrofluorocarbons
06/23/1993EP0547939A1 Reactive distillation process and apparatus for carrying out said process
06/22/1993US5221441 Controlling liquid level in catalyst bed
06/17/1993CA2085564A1 Reactive distillation process and apparatus for the implementation thereof
06/16/1993EP0546764A1 Synthesis of alkyl tert-alkyl ether using hydrogen fluoride-modified montmorillonite clays
06/16/1993EP0546695A1 Synthesis of alkyl t-alkyl ether using zeolite catalysts
06/15/1993US5220078 Catalyst selectivity
06/15/1993US5220077 Reacting an alcohol and an alkylene oxide using a catalyst made in situ by combining an alkoxylated alcohol, a calcium or strontium compound, a mineral acid and a titanium alkoxide
06/15/1993US5220048 Substituted benzocyclobutenes, a process for their preparation and their use
06/10/1993WO1993011103A1 Fluorinated hydrocarbon compounds, their use in cosmetic compositions, method of preparing them and cosmetic compositions containing them
06/10/1993WO1993010897A1 Method of producing alkaline-earth phosphates containing hydrophobic groups
06/10/1993CA2103922A1 Hydrofluorocarbon compounds, their use in cosmetic compositions, a process for their preparation and cosmetic products containing them
06/10/1993CA2066093A1 One-step synthesis of methyl t-butyl ether from t-butanol using hydrogen fluoride-modified montmorillonite clays
06/09/1993EP0545891A2 Aldehyde compounds and derivatives thereof useful as intermediates in the preparation of insectical ether compounds
06/09/1993EP0545304A1 Process for the preparation of substituted indenes and their use as ligands for metallocene catalysts
06/09/1993EP0545174A1 Oligomers of fluorinated olefins
06/09/1993CN1072816A Pesticide com|positions containing neoether
06/08/1993US5218003 Liquid phase process for dimethyl ether synthesis
06/02/1993EP0544488A2 Substituted phenyl phenol leukotriene antagonists
06/02/1993CN1021011C 2,2-difluocyclopropylethane derivatives processes for their preparation and their use as pesticides
06/01/1993US5216187 Reacting 2-halogenacetal derivative of 2-methylenepentane with an epihalohydrin; protecting hydroxyl group formed; intermediates for prostaglandins
06/01/1993CA1318689C Allyl ether monomers
06/01/1993CA1318688C Process for making propargyl ether of bisphenols
05/1993
05/27/1993WO1993010160A1 New thermoplastic fluorocopolymers, and fluoromonomers for use in their manufacture
05/27/1993WO1993010070A1 Production of bis(fluoromethyl)ether and/or difluoromethane from formaldehyde and hydrogen fluoride
05/27/1993WO1993010069A1 Process for producing dimethyl ether
05/27/1993DE4138631A1 Hydrophobierte erdalkaliphosphate Hydrophobic and alkaline earth
05/27/1993DE4137967A1 Neue thermoplastische fluorcopolymere und fluormonomere zum einsatz bei deren herstellung New thermoplastic fluorocopolymers and fluoromonomers for use in the manufacture
05/27/1993CA2123568A1 Catalyst and process
05/26/1993EP0543288A1 Process for the preparation of perfluorinated ethers
05/26/1993CN1020893C Improved process for preparing vinyl ethers
05/26/1993CA2065616A1 One-step synthesis of methyl t-butyl ether from t-butanol using multi-metal-modified zeolite catalysts
05/25/1993US5214218 Montmorillonite clays
05/25/1993US5214217 Exchanged type-Y zeolite
05/19/1993EP0542596A1 Method of separating ethyl-tert-buthyl-ether and ethanol
05/19/1993EP0532520A4 Process for removing double metal cyanide complex catalyst residues from catalyst-residue containing polyols
05/19/1993EP0243499B1 Electronic device having a power supply input circuit in which noise from static electricity is suppressed
05/18/1993CA1317977C Dipropargyloxybenzene compounds and their production
05/18/1993CA1317973C Tetralin derivatives, their preparation and their use
05/18/1993CA1317966C Preparation of substituted benzotrichlorides
05/17/1993CA2082883A1 Process for the preparation of perfluorinated ethers
05/13/1993CA2082757A1 Process for separating ethyl tert-butyl ether and ethanol