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| Number | Title | Issue Date |
| 8158836 | Catalytic gas phase fluorination of 1230xa to 1234yf The invention is directed to a process for preparing 2,3,3,3-tetrafluoropropene (1234yf), comprising: (i) contacting 1,1,2,3-tetrachloropropene (1230xa) with hydrogen fluoride HF in gas phase in the presence of a fluorination catal... | 04/17/2012 |
| 7700815 | Method for producing fluorinated organic compounds Disclosed is a method for producing fluorinated organic compounds, including petnafluoropropenes, which preferably comprises converting at least one compound of formula (I): CFnXmCFaXbCH2X (I) | 04/20/2010 |
| 7439408 | Method for producing halogenated 2-(3-butenylsulphanyl)-1,3-thiazoles The present invention relates to a process for preparing a compound of formula (V) where R is H or F, by reacting a compound of formula (IV) | 10/21/2008 |
| 7385093 | Method for producing halogenated 2-(3-butenylsulphanyl)-1,3-thiazoles The present invention relates to a process for preparing compounds of formula (IV) where R is H or F, by reacting a compound of formula (II) | 06/10/2008 |
| 7348461 | Processes for halogenating compounds Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other... | 03/25/2008 |
| 7329786 | Processes for producing CFCFHCF Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-216aa. Other... | 02/12/2008 |
| 7279451 | Compositions containing fluorine substituted olefins The use to e of tetrafluoropropenes, particularly (HFO-1234) in a variety of applications, including refrigeration equipment, is disclosed. These materials are generally useful as refrigerants for heating and cooling, as blowing agents, as aerosol propellants, as so... | 10/09/2007 |
| 7271301 | Synthesis of perfluoroolefins A gold-lined pyrolysis reactor is used to pyrolyze compounds to form fluoroolefins like tetrafluoroethylene and hexafluoropropylene in high yield, with minimum to no formation of perfluoroisobutylene, chlorotrifluoroethylene, coke, salts, or polymer. ... | 09/18/2007 |
| 7268261 | Production processes Methods and materials are disclosed for the recovery of valuable hydrofluorocarbons and subsequent conversion to environmentally inert compounds. More specifically methods and materials are provided for recovering hydrofluorocarbons such as HFC-227, HFC-236, HFC-245... | 09/11/2007 |
| 7250540 | Process for manufacturing fluoroolefins A process for manufacturing fluoroolefins comprising perfluorinating a starting material comprising at least one carbon-bonded hydrogen by electrochemical fluorination, dissociating this separated effluent in a pyrolysis, quenching and separating the effluent to yie... | 07/31/2007 |
| 7250539 | Materials and methods for the conversion of hydrofluorocarbons Methods and materials are disclosed for the recovery of valuable hydrofluorocarbons and subsequent conversion to environmentally inert compounds. More specifically methods and materials are provided for recovering hydrofluorocarbons such as HFC-227, HFC-236, HFC-245... | 07/31/2007 |
| 7196235 | Process for producing fluorinated vinyl ether There is provided a process for producing a fluorinated vinyl ether from a fluorinated acid fluoride compound having an ester group as a precursor of a carboxylic acid group, or a SO2F group as a precursor of a sulfonic acid group, in high yield by simple... | 03/27/2007 |
| 7183448 | Azeotropic composition, comprising 1, 1, 1, 3,3-pentafluoropropane and 1, 1, 1-trifluoro-3-chloro-2-propene, method of separation and purification of the same, and process for producing 1, 1, 1,3,3-pentafloropropane and 1, 1, 1-trifluoro-3-chloro-2-propene A mixture comprising at least 1,1,1,3,3-pentafluoropropane and 1,1,1-trifluoro-3-chloro-2-propene is subjected to a distillation operation, and thereby, a distillate comprising an azeotropic composition consisting substantially of 1,1,1,3,3-pentafluoropropane and 1,... | 02/27/2007 |
| 7135601 | Catalytic method for the production of fluoroalkylenes from chlorofluorohydrocarbons A process for producing a producing a product of the formula: R—CF═CHR1 wherein R is F or CF3 and R1 is F when R is F and is H when R is CF3 by reacting a reactant of the formula: CF... | 11/14/2006 |
| 7030283 | Process for producing 1,1-difluorovinyl cycloaliphatic compounds This invention relates to a process for the preparation of 1,1-difluoroolefins, e.g., difluorovinyl cycloaliphatic compounds such as difluorovinylcyclohexane and derivatives by the dehydrofluorination of a trifluoromethyl-substituted cycloaliphatic compound and the ... | 04/18/2006 |
| 6963016 | Process for the synthesis of highly active modified carbon supported palladium catalyst The present invention relates to a process for the synthesis of highly active modified carbon supported palladium catalyst by simultaneously impregnating activated carbon with a palladium precursor and an aluminium precursor. The carbon supported palladium catalyst ... | 11/08/2005 |
| 6924402 | Simultaneous preparation of tetrafluoroethylene and hexafluoropropylene The present invention relates to a process for simultaneously preparing tetrafluoroethylene and hexafluoropropylene by the pyrolysis of difluorochloromethane mixed in the molar ratio of super-heated steam/pre-heated difluorochloromethane ([H2O]/[R22]) of ... | 08/02/2005 |
| 6919015 | Process for manufacturing fluoroolefins A process for manufacturing fluoroolefins comprising perfluorinating a starting material comprising at least one carbon-bonded hydrogen by electrochemical fluorination, dissociating this separated effluent in a pyrolysis, quenching and separating the effluent to yie... | 07/19/2005 |
| 6897344 | Method of treating fluorine compound and treated substance Divalent and trivalent metal salts are added to the solution containing the fluorine compound to precipitate the layered double hydroxide containing the fluorine compound between layers. By these processes, the fluorine compound can be fixed with high rate. Moreover... | 05/24/2005 |
| 6849163 | Method for producing tetrafluoroethylene There is provided a process for recovering tetrafluoroethylene wherein an amount of energy required to obtain TFE is reduced. In the process for producing a TFE mixture as an intended mixture which contains TFE at a higher concentration from a raw material mi... | 02/01/2005 |
| 6838017 | Polar tolane liquid crystals New tolane and bis-tolane compounds: in which X is F (fluoro), CN (cyano), OCF3 (trifluoromethoxy), or NCS (isothiocyanate) at least one of the pairs Y1 and Y | 01/04/2005 |
| 6806396 | Disposal of fluoroform (HFC-23) The present invention relates to the co-pyrolysis of fluoroform and chlorodifluoromethane to form a mixture of useful fluoroolefin and saturated HFCs, notably, tetrafluoroethylene and hexafluoropropylene and CF3CHF2 and CF3CHFCF... | 10/19/2004 |
| 6784327 | Process for the production of fluorinated organic compounds and fluorinating agents A process for the production of a fluorinated organic compound, characterized by fluorinating an organic compound having a hydrogen atoms using IF5; and a novel fluorination process for fluorinating an organic compound having a hydrogen atoms by using a f... | 08/31/2004 |
| 6743957 | Method of treating fluorine compound Divalent and trivalent metal salts are added to the solution containing the fluorine compound and the polymer containing fluorine to precipitate the layered double hydroxide containing the fluorine compound between layers. At this time, the polymer containing fluori... | 06/01/2004 |
| 6710215 | Method of a simultaneous preparation of hexafluoropropylene and octafluorocyclobutane A method of simultaneous and selective prepararation of hexafluoropropylene and octafluorocyclebutane comprising the steps of: (a) thermally decomposing difluorochloromethane to obtain tetrafluoroethylene and then supplying the resulting tetrafluoroethylene i... | 03/23/2004 |
| 6664431 | Process for producing fluorinated aliphatic compounds The present invention relates to a process for producing fluorinated aliphatic compounds by pyrolysis of perfluorocarboxylic acids and their derivatives--halides and esters. The pyrolysis is carried out in the presence of a catalyst consisting of a carrie... | 12/16/2003 |
| 6624337 | Process for the manufacture of fluoroolefins A process is disclosed for producing perfluoroolefins of the formula CF(R1f).dbd.CF2, where R1f is F or CF3. The process involves (a) perfluorinating cyclobutanes of the formula ##STR1## wh... | 09/23/2003 |
| 6534671 | Photocurable halofluorinated acrylates This invention relates to a novel class of halofluorinated acrylates and more particularly to chlorofluorinated or bromofluorinated acrylates characterized by a chlorofluorinated or bromofluorinated alkylene moiety with acrylate functions at both terminal... | 03/18/2003 |
| 6403847 | Process for producing 1,1,1,3,3-pentafluoro-propane and/or 1-chloro-3,3,3-trifluoropropene One or more materials selected from 1,1,1,3,3-pentachloropropane, 1,1,3,3-tetrachloropropene and 1,3,3,3-tetrachloropropene are used as the specific materials described above. Before submitting the materials and HF to a fluorination reaction, almost all w... | 06/11/2002 |
| 6348634 | Process for the (CFC-113a) dimerization A reductive dimerization process of 1,1,1-trifluoro, 2,2,2-trichloroethane (CFC-113a) with hydrogen, with formation of 1,1,1,4,4,4-hexafluoro-2,2,3,3-tetrachlorobutane and 1,1,1,4,4,4-hexafluoro-2,2-dichlorobutene, and mixtures thereof, wherein the c... | 02/19/2002 |
| 6297205 | Monohydric alcohol-free transparent moisturizing bar soap A monohydric alcohol-free, transparent, moisturizing bar soap having a high humectant solvent content. The formulation includes: (i) from about 38% to about 96% of one or more humectant solvents and (ii) from about 3% to about 20% of insoluble and/or solu... | 10/02/2001 |
| 6255543 | Partially fluorinated polymers Selected novel partially fluorinated ,ω-dienes can be free radically (co)polymerized to form polymers in which cyclic structures are present. The polymers are useful for films, coatings and molded parts.... | 07/03/2001 |
| 6251843 | Synthetic detergent bar and manufacture thereof A detergent composition which is suitable for making into bars for personal washing comprises: (a) 10 to 60% wt. of a synthetic, non-soap detergent; (b) 20 to 60% wt. of water soluble material which is neither soap nor a non-soap detergent and which has a melt... | 06/26/2001 |
| 6156943 | Halogenated hydrocarbons containing fluorine and processes for their manufacture Processes are disclosed for producing hydrohaloolefins having the formula CF2 .dbd.C(CH2 RF)CF3, the formula FRCF.dbd.C(CH2 RF)CF3 or the formula FRCF.dbd.C(CH2 RF)(CF2 RF) wherein ... | 12/05/2000 |
| 6093860 | Method for producing perfluoro(n-pentane) A method for producing perfluoro(n-pentane), which comprises fluorinating perfluoro(2-pentene) by bringing the perfluoro(2-pentene) into contact with a fluorine gas in the presence of a solvent.... | 07/25/2000 |
| 6011186 | Process for manufacturing allylhalide and equipment to be used therefor A process for manufacturing allylhalide from gaseous propene and a gaseous halogen comprising introducing propene into a tubular loop reactor (2) through an inlet nozzle (3); introducing gaseous halogen into the tubular loop reactor (2) through several ax... | 01/04/2000 |
| 5929293 | Process for the preparation of fluoroolefins The invention concerns processes for the preparation of fluoroolefins, including a process for the deiodofluorination of an iodine containing fluorocarbon comprising contacting said iodine containing fluorocarbon with a fluoroolefin in the presence of an ... | 07/27/1999 |
| 5728903 | Method for producing flourine-containing silicone compound A method for producing a fluorine-containing silicone compound, which comprises subjecting a compound of the following formula (I) and a hydrosilicone compound having at least one hydrogen atom bonded to a silicon atom to hydrosilylation to obtain a fluor... | 03/17/1998 |
| 5608128 | Production methods of 1,1,1,4,4,4-hexsfluoro-2-butene compounds and 1,1,1,4,4,4,-hexafluorobutane The present invention provides a production method of obtaining the mixture of 1,1,1,4,4,4-hexafluoro-2,3-dichloro-2-butene, 1,1,1,4,4,4-hexafluoro-2-chloro-2-butene and 1,1,1,4,4,4-hexafluoro-2-butene (1,1,1,4,4,4-hexafluoro-2-butene compounds) by r... | 03/04/1997 |
| 5536890 | Process for preparing hexafluorobutane 1,1,1,4,4,4-hexafluorobutane is obtained from a trifluoroethane compound, by reacting this with hydrogen in the gas phase and without a diluent on a palladium- and/or nickel-containing supported catalyst and subsequently hydrogenating the reaction product... | 07/16/1996 |
