Patents
Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242)
07/1996
07/24/1996CN1127243A Method for purification ether containing two distilation steps
07/24/1996CN1127242A Catalysis synthesizing technology for ether
07/23/1996US5539135 Reaction of fatty acid with hydrotalcite and other minerals, catalyst for the addition of ethylene and propylene oxides to active hydrogen compounds
07/23/1996US5539129 Nonionic amphiphilic compounds derived from glycerol, a process for preparing them, and corresponding intermediate compounds
07/23/1996CA2044388C Process for the preparation of dialcoxybutenes
07/18/1996WO1996021636A1 Process for producing end-group-locked non-ionic tensides
07/18/1996WO1996021635A1 Process for preparing alkyl tertiary-alkyl ether
07/18/1996DE19500842A1 Verfahren zur Herstellung von endgruppenverschlossenen nichtionischen Tensiden A process for the production of end-capped nonionic surfactants
07/18/1996DE19500798A1 3-alkoxy- and 3-acyloxy-2-hydroxy:propane-1-sulphonic acid catalysts
07/18/1996CA2210230A1 Process for preparing alkyl tertiary-alkyl ether
07/16/1996US5536887 Process comprising two extractive distillation steps for the production of tertiary ethers from a C4 or C5 feedstock
07/16/1996US5536886 Process for preparing alkyl ethers
07/16/1996US5536885 Production of perfluoro(alkyl vinyl ethers)
07/16/1996US5536870 Process for preparing olefins
07/16/1996US5536833 Process for the preparation of intermediates useful in the preparation of pyranyl cyanoguanidine derivatives
07/10/1996CN1126517A Gas chromatographic analysis of fluoromethyl 1,1,1,3,3,3-hexafluoroisopropylether
07/10/1996CN1032252C Method of removing catalyst residues to procide a purified polyol
07/04/1996WO1996020233A1 Process for preparation of epoxy compounds
07/04/1996WO1996020232A1 Process for preparation of allyl ether, thioether and amine compounds
07/03/1996EP0719758A1 Process for the production of aromatic olefines
07/03/1996EP0719752A1 Process for producing polyglycerols and polyglycerol esters
07/03/1996EP0719751A1 A gradient catalyst system for the integrated production of isopropyl alcohol and diisopropyl ethers
07/03/1996CN1125936A Method of purifying fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether
07/03/1996CN1125935A Method of purifying fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether
07/03/1996CN1125934A Process for preparing phenethanol ethers
07/02/1996CA1338433C Preparation of ó-arylalkanoic acids
07/01/1996CA2161182A1 Gradient catalyst system for the integrated production of isopropyl alcohol and diisopropyl ethers
06/1996
06/27/1996WO1996019548A2 Regenerant recycle process for oxygenate removal
06/27/1996WO1996019288A1 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide for olefin isomerization
06/27/1996DE19506021C1 Catalytic enantioselective redn. of ketone cpds.
06/26/1996EP0718270A2 Process for the preparation of polyol alkyl ethers
06/26/1996EP0718269A1 Integrated process for the production of ter-amyl alkyl ethers
06/26/1996EP0718265A2 Method for producing an alcohol
06/26/1996CN1125216A Method for producing dimethyl ether from methyl alcohol
06/26/1996CN1032131C Alkoxylation process catalyzed by sodium-or potassium barium phosphate
06/25/1996US5530165 Using a hydrocarbon additive stream to alter compositions of overhead and bottoms products of etherification effluent fractionator; reduces alcohol concentration in overhead
06/19/1996EP0717021A1 Method for working up a surfactant-containing reaction mixture
06/19/1996CN1124955A Preparation of cyclopropane esters
06/19/1996CN1032059C Process for isomerizing linear olefins to isoolfins
06/18/1996US5527970 Using macroreticular acid resin catalyst
06/18/1996US5527969 Process for preparing acetaldehyde diethyl acetal
06/13/1996CA2164783A1 Integrated process for the production of ter-amyl alkyl ethers
06/12/1996EP0716104A1 A process for the manufacture of paraformaldehyde
06/12/1996EP0716069A1 Process for the preparation of alkyl 4-bromophenyl ethers
06/12/1996CN1124242A A process for the manufacture of paraformaldehyde
06/05/1996EP0714878A1 Sequential reaction of T-butanol and isobutylene with methanol
06/05/1996DE19500056C1 New organic cpds. of niobium, tantalum or titanium for electro-ceramics
06/04/1996US5523502 Flexible light olefins production
06/04/1996US5523496 Fluorination of acetals, ketals and orthoesters
06/04/1996US5523495 Reacting ketone or aldehyde with a dihalopropene in presence of zinc powder, water and acid yields a haloallylcarbinol which can be dehalogenated with a base, nonexplosive
06/04/1996US5523493 Process for the production of at least one alkyl tertiobutyl ether from natural gas
06/04/1996US5523491 Process of producting ether compound
06/04/1996US5523272 Catalyst and process for the production of alkyl tert alkyl ether from hydrocarbon feedstocks with high levels of sulfur
06/04/1996US5523061 Reaction section divided into several beds by separating plates; permits greater contact between reactants and catalyst
05/1996
05/29/1996EP0713497A1 Liquid phase and aqueous solutions of poly(vinyl methyl ether) from highly purified vinyl methyl ether monomer
05/29/1996EP0585265B1 Process for producing epoxy open ring products with a defined residual epoxy oxygen content
05/29/1996CN1123269A Method for preparation of ethyl tert-butyl ether and prdouct thereof and application thereof
05/29/1996CA2159413A1 Sequential reaction of tba and isobutylene with methanol
05/23/1996DE19537997A1 New aromatic fluorinated vinyl ether(s), for prepn. of fluoro-elastomers
05/22/1996EP0540674B1 Improved catalytic olefin hydration for ether production
05/21/1996US5518643 Lubricating oil containing a polyvinyl ether compound for compression-type refrigerators
05/17/1996WO1996014377A1 Method of preparing non-ionic surfactants having closed end groups
05/15/1996EP0711601A2 Catalyst for multistage etherification with high conversion of T-butanol
05/15/1996EP0711268A1 Method for preparing alkoxylation products in the presence of additive-modified mixed hydroxides
05/15/1996EP0711264A1 Process for the preparation of perfluoroalkyl iodide
05/15/1996CA2159410A1 Catalyst for multistage etherification with high conversion of t-butanol
05/14/1996CA1338328C Process for the production of 1-phenyl-2-cyclopropyl-ethan-1-ol-compounds, derivatives therefrom and intermediates therefore
05/09/1996WO1996013477A1 Polyether lubricants
05/09/1996DE4439086A1 Verfahren zur Herstellung von endgruppenverschlossenen nichtionischen Tensiden A process for the production of end-capped nonionic surfactants
05/08/1996EP0710641A1 Process for the preparation of 1,1-dichloromethyl methyl ether and 1,1-dichloromethyl ethyl ether
05/02/1996DE4438581A1 Prepn. of di:alkyl ether(s) with increased rate and reduced by-prods.
05/01/1996EP0709359A1 Process for the preparation of monovinyl ethers
05/01/1996EP0709357A1 Method for the cross-coupling of aromatic halo compounds or perfluoroalkanesulphonates with terminal alkynes
04/1996
04/29/1996CA2161601A1 Process for cross-coupling aromatic halogen compounds or perfluoroalkylsulfonates with terminal alkynes
04/25/1996DE4443592C1 Prepn. of alkyl-4-bromo-phenyl ether derivs., useful as intermediates
04/23/1996US5510566 N-butane is used to regenerate a molecular sieve adsorption bed; contaminated n-butane is purified by distillation
04/23/1996US5510554 Reacting a 1-halo-2-substituted naphthalene with a 2-substituted-1-naphthyl-magnesium halide in the presence of a palladium/phosphine catalyst
04/23/1996US5510542 Process and apparatus for producing diglycerin
04/23/1996US5510541 Reacting conjugated diene with an aliphatic alcohol or diol in presence of catalyst system containing a palladium salt or complex, a alkyl, alkaylcyloalkyl or arylalkylphoshine ligand and a inorganic or organic base
04/18/1996WO1996011227A1 Continuous bromination process and products thereof
04/18/1996WO1996011178A1 Method of refining methylal
04/17/1996EP0706993A1 Method of purifying acifluorfen
04/17/1996EP0706985A1 Production of a high purity ether product
04/17/1996EP0706506A1 Fluorinated bis-ethers and process for preparing them and fluorinated methyl ethers
04/17/1996CN1120629A Silencing apparatus
04/17/1996CN1120628A Multifunctional self-walking driller
04/17/1996CN1120546A Acid-catalyzed fabrication of precursors for use in making polyols and ethylene oxide capping of polyols made using double metal cyanide catalysts
04/17/1996CN1120529A Method of purifying acifluorfen
04/17/1996CN1120528A Production of a high purity ether product
04/16/1996US5507922 Preparation of benzaldehyde dialkyl acetals
04/10/1996EP0705239A1 Process for preparing phenethanol ethers
04/09/1996US5506364 Process for the production of bis(fluoromethyl)ether and difluoromethane
04/09/1996US5505855 Heating, pressurizing, passing through reverse osmosis membrane
04/04/1996DE4434823A1 Continuous prodn. of hydroxy-benzyl alkyl ether
04/03/1996EP0704442A2 Natural circulation reactor and use
04/03/1996EP0704420A1 Process for producing enantiomerically enriched guaifenesin
04/03/1996EP0703885A1 Synthesis of substituted triphenylenes, useful as discotic liquid crystals
04/03/1996CN1119836A Alkoxylation catalyst, process for the preparation of the catalyst and process for preparing alkoxylate with the use of the catalyst
04/02/1996US5504263 Production of hydrofluorocarbons
04/02/1996US5504259 Process to convert biomass and refuse derived fuel to ethers and/or alcohols