Patents
Patents for C07C 41 - Preparation of ethers; Preparation of compounds having groups, groups or groups (17,242)
10/1997
10/21/1997US5679576 Gas chromatographic analysis of fluoromethyl-1,1,1,3,3,3-hexafluoroisopropyl ether
10/16/1997WO1997037972A1 Novel vitamin d analogues
10/15/1997EP0801050A1 Process for the preparation of acetic acid
10/15/1997EP0801048A1 Process for producing benzhydrols
10/14/1997US5676955 Local anesthetic
10/08/1997EP0799815A1 Process for producing ditrimethylolpropane
10/08/1997EP0799262A1 Process for preparation of epoxy compounds
10/08/1997EP0799261A1 Process for preparation of allyl ether, thioether and amine compounds
10/08/1997EP0799091A1 Sol-gel derived porous microcomposite of perfluorinated ion-exchange polymer and metal oxide for olefin isomerization
10/08/1997CN1161684A Polyether lubricant
10/08/1997CN1161251A Use of hydrogen-bis (oxalato) borate
10/07/1997US5675042 Selective hydroxylation of phenol or phenolic ethers
10/07/1997US5675038 Providing a polyamine in the solution in addition to the lithium and alkylamine to speed the reaction
10/07/1997US5674959 With fluorinated olefins or unsaturated ethers as monomers and end groups containing iodine, for elasticity, low compression set value, recovery of initial dimensions
10/07/1997US5674949 Liquid-phase fluorination
10/07/1997US5674880 Tri-substituted phenyl derivatives and processes for their preparation
10/02/1997WO1997035823A1 Method for the preparation of dialkyl ethers
10/01/1997EP0798040A1 Phosphoric acid catalyst and its use
10/01/1997EP0797564A1 Lignans, a process for their production and pharmaceutical compositions and uses thereof
10/01/1997EP0693050B1 Process for preparing diglycerine
10/01/1997CN1035992C Method for production of propylene-glycol ethyl ether
09/1997
09/30/1997US5672797 Alkylation of aromatics using a metal cation-modified friedel-crafts type catalyst
09/30/1997US5672795 Catalytically reacting monohydroxy alkyl alcohol and normal or isoalkanes or normal or isoalkenes, separation, distillation, then recycling unreacted hydrocarbons
09/30/1997US5672772 Process for removal of nitriles from etherification feedstocks
09/30/1997US5672771 Etherification and isomerization
09/30/1997US5672770 Process for the preparation of methyl 1,1-dichloromethyl ether or of ethyl 1,1-dichloromethyl ether
09/30/1997CA2027522C Method for fluorode carboxylation
09/25/1997WO1997034857A1 Method for the cyclotrimerization of alkynes in aqueous solutions
09/24/1997CN1160392A Method of refining methylal
09/23/1997US5671153 Chemical reactor feed control
09/23/1997US5670697 Preparation of cyclopropane esters
09/23/1997US5670029 Process for the separation of a mixture of benzyl chloride, benzyl alcohol, dibenzyl ether and aqueous hydrochloric acid
09/18/1997WO1997033852A1 Separation of monoethers from diethers
09/18/1997WO1997033847A1 Turbine-powered, synthesis-gas system and method
09/18/1997CA2247414A1 Turbine-powered, synthesis-gas system and method
09/17/1997EP0795532A1 Process for production of vinyl ether
09/17/1997EP0699176B1 Production of perfluoro(alkyl vinyl ethers)
09/16/1997US5668227 Epoxy resin additive, diluent, flexibilizer, adhesion enhancer
09/12/1997WO1997032901A1 Method for the production of ether and alkylate from a paraffin feedstock
09/12/1997WO1997032838A1 Production of a high purity butene-1 product from butadiene-rich c4 stream
09/12/1997WO1997032833A1 Stabilized monomer composition
09/11/1997DE19609312A1 Stabilisierte Monomerenzusammensetzung Stabilized monomer
09/10/1997EP0647215B1 Process for producing oligoclycerine mixtures with increased diglycerine content
09/10/1997EP0640070B1 Styryl derivatives, their preparation and use as pde-iv inhibitors
09/09/1997US5665877 Synthesis of bisindolylmaleimides
09/03/1997EP0792859A2 Use of catalysts based on silica containing catalyst carriers for catalytic reactions under hydrothermal conditions
09/03/1997EP0728100A4 A cargo compartment for a lighter-than-air vehicle
09/02/1997US5663455 Less divinylbenzene
09/02/1997US5663454 Method for the manufacture and purification of methyl tertiary butyl ether and dimethyl ether
09/02/1997US5663450 Promotes healing
08/1997
08/28/1997WO1997030960A1 Process for preparing alkyl ethers and mixtures thereof
08/26/1997CA2026691C Process for producing p-hydroxyneophyl m-phenoxybenzyl ether
08/26/1997CA1339382C Process for the catalytic hydration of olefins
08/26/1997CA1339381C Process for the catalytic hydration of olefins
08/26/1997CA1339380C Alkoxylation process catalyzed by compounds of the rare earth elements
08/26/1997CA1339379C Alkoxylation process using catalysts of the lanthanum series
08/26/1997CA1339376C Alkoxyaltion catalysis
08/22/1997CA2197947A1 Process for preparing alkyl ethers and mixtures thereof
08/21/1997DE19605510A1 Production of bromine-containing poly:ol compounds
08/20/1997EP0789744A1 Method of preparing non-ionic surfactants having closed end groups
08/20/1997CN1157283A Process for production of alkyl ether of phenol and catalyst used therein
08/19/1997US5659091 Isobutylene-assisted aqueous extraction of methanol from methyl tertiary butyl ether
08/19/1997US5659090 Steps in a process for the production of at least one alkyl tertiobutyl ether from natural gas
08/19/1997US5659089 Process for making poly(2-methyl-1,3-propanediol)
08/19/1997US5659069 Method for the cyclotrimerization of alkynes in aqueous solutions
08/19/1997US5658962 Omega-hydrofluoroalkyl ethers, precursor carboxylic acids and derivatives thereof, and their preparation and application
08/14/1997WO1997028874A1 Etherification-hydrogenation process
08/14/1997CA2245581A1 Etherification-hydrogenation process
08/13/1997EP0788470A1 Polyether lubricants
08/05/1997US5654493 Process for preparing 4-bromophenyl alkyl ethers
08/05/1997US5654468 Antilipid, anticholesterol agents
07/1997
07/31/1997WO1997027165A1 Process for the purification of fluoromethyl-1,1,1,3,3,3-hexafluoroisopropyl ether
07/30/1997EP0786444A1 Process for producing acetaldehyde dimethylacetal
07/24/1997WO1997026236A1 Process for the preparation of 4-hydroxydiphenyl ether
07/23/1997EP0785182A1 Method of refining methylal
07/23/1997EP0784648A1 Continuous bromination process and products thereof
07/22/1997USRE35568 Method for fluorodecarboxylation
07/22/1997US5650544 Process for production of unsaturated ether and catalyst used for production of unsaturated ether
07/22/1997CA2110878C Ether recovery
07/17/1997WO1997025303A1 Process for the production of fluoromethylhexafluoroisopropylether
07/17/1997DE19601281A1 High yield and high purity bis-2-chloro-ethoxy-methane preparation
07/16/1997EP0784042A1 Use of hydrogen bis(oxalato)borate
07/15/1997US5648560 Process for preparing perhaloethers from perhaloolefins and new perhaloethers so obtained
07/15/1997US5648557 Polyether lubricants and method for their production
07/15/1997CA2037215C Treatment of lower glycol-containing operative fluids
07/03/1997WO1997023440A1 Manufacture of fluorinated compounds
07/03/1997WO1997023438A1 Process for preparing alkyl ethers and mixtures thereof
07/03/1997WO1997023437A1 Process for preparing tertiary alkyl ethers
07/03/1997WO1997019040A3 Pesticide compounds, compositions and process for the preparation thereof
07/03/1997CA2241109A1 Process for preparing alkyl ethers and mixtures thereof
07/03/1997CA2241002A1 Process for preparing tertiary alkyl ethers
07/02/1997EP0781751A1 Process for production of alkyl ether of phenol and catalyst used therein
07/02/1997CN1153164A Process for preparing chemical industry type methyl t-butyl ether
07/02/1997CN1153163A Process for synthesis of chemical industry type methyl t-butyl ether
07/02/1997CN1153162A Technique for refining methyl t-butyl ether
07/02/1997CN1153080A Catalyst for direct preparation of dimethyl ether with synthetic gas
06/1997
06/26/1997WO1997022574A1 Process for producing catechol derivatives
06/24/1997US5641816 Process for the production of polyol compounds
06/19/1997WO1997021648A1 Process for catalytic addition of nucleophiles to alkines or allenes
06/19/1997DE19546610A1 Verfahren zur katalytischen Addition von Nucleophilen an Alkine oder Allene Process for the catalytic addition of nucleophiles to alkynes or allenes