Patents
Patents for C07C 17 - Preparation of halogenated hydrocarbons (19,929)
01/2005
01/11/2005US6841707 Catalyzing the bromination by feeding diphenylethane into the vessel at a location above the level of the charge bromine and halogenation catalyst; preventing plugging by using the dip tubes
01/11/2005US6841706 Chromium oxide (Cr2O3) catalyst comprising small amount of ammonium salt; halogenated hydrocarbons are fluorinated with hydrogen fluoride; dechlorination
01/11/2005US6841705 Method of producing difluoromethane
01/11/2005US6841139 Fullerene carbon tubes are fluorinated then nucleophilically substituted
01/11/2005CA2345489C A process for concentrating fluorine compounds
01/06/2005US20050004410 A layered double hydroxide precipitate formed by adding divalent and trivalent metal hydroxides to a solution of a perfluoroalkylcarboxylate or sulfonate; a fixed polymerization catalyst for polytetrafluoroethylene; improved pollution control
01/06/2005US20050004409 Process for the preparation of 1-chloro-1-fluoroethane and/or 1,1-difluoroethane
01/06/2005US20050004408 Reacting dichloromethane with hydrogen fluoride in vapor phase using fluorination catalyst
01/06/2005US20050004337 Process for producing a polyfluoroalkyl (meth) acrylate
01/06/2005US20050004212 Antitumor/cancer activity; topoisomerase I inhibitors
01/06/2005US20050004211 Inhibiting topoisomerase I; blocking S or G2/M phase of tumor and/or cancer cells
01/06/2005US20050000846 Alkyl iodide storage container and method for purification of alkyl iodide
01/05/2005EP1493796A1 Functional thin film
01/05/2005EP1492750A1 Stabilization and use of propargyl bromide
01/05/2005CN1561333A Aromatic and heteroaromatic acid halides for synthesizing polyamides
01/05/2005CN1561326A Alpha-haloenamine reagents
01/05/2005CN1561319A Method for producing hexafluoroethane and its use
01/05/2005CN1561318A Method of purifying tetrafluoromethane and utilization thereof
01/05/2005CN1183090C Method for preparation of cyclopropyl acrylic derivative
01/05/2005CN1183075C Benzene derivative and its prepn. method
01/05/2005CN1183074C Improved preparing method for chloroine and alkynylamine
01/05/2005CN1183073C Process for proucing pentafluoride ethane using chloro-tetrafluoro ethane disproportionation
01/05/2005CN1183072C Process for purifying perfluorocyclobutane
01/05/2005CN1183071C Improved process for producing hexabromocyclododecane
01/04/2005US6838585 Biphenyl reaction products
01/04/2005US6838576 Process for preparing functional group-containing olefinic compounds
01/04/2005CA2243499C Azeotrope comprising pentafluoropropane and hydrogen fluoride and method for separating and purifying pentafluoropropane
12/2004
12/30/2004US20040267064 method and the apparatus according to invention allow butadiene/1,3-/ content in vinyl chloride to be lowered, making it immediately polymerizable
12/30/2004US20040267063 Dehydrogenation of ethane to ethene; chlorination; circulation
12/30/2004US20040262744 Diamondoid-containing thermally conductive materials
12/30/2004DE10326613A1 Use of materials containing aluminum oxide or nickel and aluminum for producing or coating corrosion-resistant machine shafts in contact with chemically aggressive media
12/30/2004DE10326248A1 Production of vinyl chloride comprises thermal cracking 1,2-dichloroethane in cracking furnace, in which medium pressure is maintained in system by externally heatable and separately regulatable heat exchanger
12/29/2004WO2004113412A2 Polymer
12/29/2004EP1491568A1 Semiconductive Polymers
12/29/2004CN1558887A Materials and methods for the production and purification of chlorofluorocarbons and hydrofluorocarbons
12/29/2004CN1182098C Purifier and purifying method for polymerizable organic compounds
12/29/2004CN1182092C Preparation process of 2,2-trifluoiodoethane
12/23/2004WO2004110974A1 Matrix metalloproteinase inhibitors
12/23/2004US20040260128 Solvent-free mechanochemical preparation of phosphonium salts, phosphorus ylides, and olefins
12/23/2004US20040260127 Process for preparation of dihalogenoadamantanes
12/23/2004US20040256743 Replacing a halogen atom in organic compounds using as a catalyst a tris[tris(dialkylamino)- or tris(alkyleneamino)-phosphoranylideneamino]phosphine oxide or a phosphazenium derivative of the phosphine oxide
12/23/2004US20040256616 Process of preparing a disubstituted 9-alkylidenefluorene or a derivative thereof
12/23/2004DE10324843A1 New cyclopenta(b)naphthalene derivatives, used in liquid crystal medium for electrooptical display or mesogenic medium for electrooptical light control element, have cyclopentane, cyclopentene, oxocyclopentene or oxocyclopentane ring
12/22/2004EP1487769A1 Liquid phase process for hcfc-123
12/22/2004CN1556083A Preparation method of difluoro chloroethane and its production equipment
12/22/2004CN1556082A Preparation method of 1,1-difluoro ethane and its production equipment
12/22/2004CN1556081A Preparation method of bromo-nor-propance for cleaning agent and rectification device
12/21/2004CA2098245C Process for removing olefinic impurities from fluorinated c3-c6-hydrocarbons
12/16/2004WO2004108633A1 Process for the preparation of aryl diazonium salts and reaction with nucleophiles
12/16/2004WO2004052939A3 Ligands for metals and improved metal-catalyzed processes based thereon
12/16/2004US20040254327 Bisphenol a derivatives containing one biaryl group and a spacer; monomers for polycarbonates
12/16/2004US20040254319 Flurofunctional statistical polymers with low glass transition temperature and method for obtaining the same
12/16/2004US20040254240 Anti-cancer nitro- and thia-fatty acids
12/16/2004US20040254066 Dissolving or dispersion forming emulsion; transition metal catalyst encapsulated within a permeable polymer; catalyst for foirming polyol from olefin
12/16/2004US20040251478 Diamondoid-containing materials for passivating layers in integrated circuit devices
12/16/2004CA2528453A1 Process for the preparation of aryl diazonium salts and reaction with nucleophiles
12/15/2004EP1486482A1 Process for producing a polyfluoroalkyl (meth)acrylate
12/15/2004EP1486479A1 Method for producing organic compounds by substituting halogen atoms
12/15/2004EP1116706B1 Process for producing 1,1,1,3,3-pentafluoro-propane and/or 1-chloro-3,3,3-trifluoropropene
12/15/2004CN1554627A Process for preparing vinylidene chloride from rectifying residual liquid of dichloroethane
12/14/2004US6831202 Compositions comprising octamantanes and processes for their separation
12/09/2004WO2004106272A2 Process for the reduction of acidic contaminantes in fluorinated hydrocarbons
12/09/2004WO2004106271A2 Method of making hydrofluorocarbons
12/09/2004WO2004105929A2 Phase transfer catalysis scrubber
12/09/2004WO2003048090A8 The use of microencapsulated transition metal reagents for reactions in supercritical fluids
12/09/2004US20040249225 Method an system for recovery of catalysts and process and unit for production of perfluoroalkyl iodide telomers
12/09/2004US20040249219 Method of making teprenone
12/09/2004US20040245505 Process for the production of fluorinated organic compounds and fluorinating agents
12/08/2004EP1112998B1 Amine derivatives
12/08/2004CN1552683A Hydrocarbon compound, preparing method and use thereof
12/08/2004CN1178919C Sythesis of intermediates useful in preparing tricyclic compounds and its intermediates
12/08/2004CN1178883C Process for production of hexafluoropropene optionally other halogenated hydrocarbons containing fluorine
12/08/2004CN1178882C Liquid-fluorination system and method
12/07/2004US6828389 Method for producing polymer-bonded 2-chlorotrityl-chloride
12/07/2004US6827918 Covalent modification by reacting with fluorine gas for example, followed by reacting with a nucleophile; solvating by fluorinating then sonicating in a solvent
12/07/2004CA2127732C Process for the addition of hf to halogenated alkenes
12/02/2004WO2004103938A1 Chemical recycling process
12/02/2004US20040242943 Process for the production of fluoroethane and use of the produced fluoroethane
12/02/2004US20040242939 reacting alkaline bromine intermediate mixture, obtained from bromine recovery plant, with chlorine gas in the presence of a strong alkali to oxidize the bromide ions to bromate ions; aromatic bromo compounds
12/02/2004US20040242799 Reacting paraformaldehyde with hydrogen bromide to form bis-bromomethyl ether as chemical intermediates; reacting biphenyl to form 4,4'-bis-(bromomethyl)-biphenyl, futher reacting with triethylphosphite to form 4,4'-bis-(diethylphosphonomethyl)-biphenyl; less hazardous, two stage processes
12/02/2004DE19528301B4 2,3'-Difluorbiphenyle 2,3'-Difluorbiphenyle
12/01/2004EP1481957A1 Process for producing fluoromonomer
12/01/2004EP1480930A1 Production of alpha-chloroisopropyl substituted aromatics
12/01/2004CN1551860A Method for purifying pentafluoroethane and method for producing the same and use thereof
12/01/2004CN1551859A Process for the obtention of purified heptafluoropropane
12/01/2004CN1177779C Fluorination
12/01/2004CN1177765C Cerium oxide and zirconium oxide based compsn., method of prepn. and utilisation in catalysis
11/2004
11/30/2004US6825390 Stabilization and use of propargyl bromide
11/30/2004US6825389 Heating 1,2-diiodoperfluoroethane; adding tetrafluoroethylene; forming alpha, omega-diidoperfluoroalkane; cooling and discharging perfluorocyclobutane by-product and unreacted tetrafluoroethylene
11/30/2004US6825383 Catalytic process for regiospecific chlorination of alkanes, alkenes and arenes
11/25/2004WO2004089862A3 Multifunctional unsymmetrically substituted monomers and polyarylene compositions therefrom
11/25/2004WO2004007407A3 Fluorous tagging and scavenging reactants and methods of synthesis and use thereof
11/25/2004US20040236162 Subjecting crude HFC-227ea containing organic impurities to a high pressure distillation step and a low pressure distillation step carried out at a pressure of at least 1 bar lower than the high pressure distillation step; environmentally-friendly fire-extinguishing agents, propellants, aerosols
11/25/2004US20040236161 Process for the reduction of acidic contaminates in fluorinated hydrocarbons
11/25/2004US20040236160 Preparation of difluoromethane, 1,1,1-trifluoroethane, 1,1,1,3,3-pentafluoropropane, 1,1,1,3,3,3-hexfluoropropane by reacting corresponding hydrochlorocarbon feedstock and hydrogen fluoride in liquid phase using large mole ratio of hydrogen fluoride to hydrochlorocarbon; minimizes high boiling by-product
11/25/2004US20040236138 Tolane derivatives and liquid crystalline medium
11/25/2004US20040236085 Solid-phase nucleophilic fluorination
11/25/2004DE102004016913A1 Flüssigkristalline Verbindungen mit CH2CF2CF2CH2- oder CF2CF2CF2CF2-Brücke Liquid-crystalline compounds with CH2CF2CF2CH2- or CF2CF2CF2CF2 Bridge
11/24/2004EP1479748A2 Tolane derivatives and liquid crystalline medium
11/24/2004CN1549745A Process for preparing fluorination catalyst
1 ... 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 ... 200