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| Number | Title | Issue Date |
| 7304191 | Process for the synthesis of fluoroorganic compounds The present invention relates to a fluorination method for the synthesis of halofluoroorganic compounds which can be used, inter alia, as precursors in the synthesis of 2,3-unsaturated fluoroorganic carbonyl compounds comprising a fluorine substituent in the 2 posit... | 12/04/2007 |
| 7179949 | Process for obtaining a purified hydrofluoroalkane Process for obtaining a hydrofluoroalkane which is purified of organic impurities, according to which the hydrofluoroalkane containing organic impurities is subjected to at least one purification treatment chosen from (a) a treatment with chlorine in th... | 02/20/2007 |
| 7138538 | Process for the separation of enantiomers and enantiopure reagent Process for the separation of enantiomers comprising at least one free functional group, in which process a reagent based on an enantiopure amino acid is reacted in basic medium with a mixture comprising enantiomers. ... | 11/21/2006 |
| 7109386 | Method for preparing a halogenated olefin Process for the preparation of a halogenated olefin by reaction of an alkyne and/or of an allene compound with a hydrogen halide in a liquid medium comprising at least one hydrohalogenation catalyst comprising at least one palladium compound. ... | 09/19/2006 |
| 7077960 | Method for obtaining a purified hydrofluoroalkane, purified hydrofluoroalkane, use of same and method for analysing same Process for the production of a hydrofluoroalkane, according to which hydrofluoroalkane comprising organic impurities is subjected to at least two distillations. ... | 07/18/2006 |
| 7074434 | Process for the separation of a mixture comprising at least one hydrofluoroalkane and hydrogen fluoride, processes for the preparation of a hydrofluoroalkane and azeotropic compositions Process for the separation of a mixture comprising at least one hydrofluoroalkane and hydrogen fluoride, according to which a hydrofluoroalkane/hydrogen fluoride mixture is reacted with at least one chlorinated or chlorofluorinated precursor of the hydrofluoroalkane... | 07/11/2006 |
| 7067706 | Method for preparing a hydro(chloro)fluoroalkane and catalyst Process for the preparation of a hydro(chloro)fluoroalkane according to which a halogenated precursor of the hydro(chloro)fluoroalkane is reacted with hydrogen fluoride in the presence of a catalyst comprising chromium (Cr) and at least one other metal selected from... | 06/27/2006 |
| 7067707 | Pentafluoroethane production method Process for the manufacture of pentafluoroethane, according to which tetrafluoroethylene is subjected to reaction with an organic nitrogenous base hydrofluoride at a temperature of greater than 100° C. and not exceeding 160° C. ... | 06/27/2006 |
| 7030214 | Ureins derived from α, ω, diamino acids and process for their preparation Ureins are obtained by reaction, in basic medium, between an Nω-(aryloxycarbonyl)diamino acid and a compound containing a free amino group. The chirality of the compounds is outstandingly well preserved. ... | 04/18/2006 |
| 7022253 | Compositions comprising 1,1,1,3,3-pentafluorobutane and use of these compositions Compositions comprising 1,1,1,3,3-pentafluorobutane and more than 5% by weight of at least one non-flammable fluoro compound, and use thereof. ... | 04/04/2006 |
| 7009083 | Process for the preparation of 1-chloro-1-fluoroethane and/or 1,1-difluoroethane The invention relates to a process for the preparation of 1-chloro-1-fluoroethane and 1,1-difluoroethane by reaction of vinyl chloride with hydrogen fluoride, in an organic solvent consisting of at least one saturated halogen-containing hydrocarbon. ... | 03/07/2006 |
| 6967253 | Method for synthesis of 5-(3-pyridylmethylene-)imidazolidine-2,4-dione Process for the synthesis of 5-(3-pyridylmethyl)imidazolidine-2,4-dione, according to which 5-(3-pyridylmethylene)imidazolidine-2,4-dione is subjected to a hydrogenation reaction. ... | 11/22/2005 |
| 6849772 | Process for producing and purifying 1,1-difluoroethane, and product thus obtained 1,1-Difluoroethane containing less than 10 mg/kg of vinyl chloride is obtained by treatment, with hydrogen fluoride, of a crude 1,1-difluoroethane containing less than 1 mol of hydrogen chloride per mole of 1,1-difluoroethane. ... | 02/01/2005 |
| 6841706 | Hydrofluorination catalyst and method Hydrofluorination catalyst based on a chromium oxide which is poor in ammonium salts. ... | 01/11/2005 |
| 6809226 | Process for the preparation of 1-chloro-1-fluoroethane and/or 1,1-difluoroethane The invention relates to a process for the preparation of chloro-1-fluoroethane and 1,1-difluoroethane by reaction of vinyl chloride with hydrogen fluoride, in organic solvent consisting of at least one saturated halogen-containing hydrocarbon. ... | 10/26/2004 |
| 6753304 | Compositions comprising perfluorobutyl methyl ether and use of said compositions Perfluorobutyl methyl ether forms azeotropic or pseudoazeotropic compositions with esters. These compositions can be used in particular as solvent for cleaning and defluxing electronic components, for degreasing metals, for removing water adsorbed at the surface of ... | 06/22/2004 |
| 6753392 | Functional trifluorovinyl monomers and their copolymerisation with fluorinated olefins Functional trifluorovinyl monomers, process for the copolymerization of trifluorovinyl monomers with fluoroolefins and use of these trifluorovinyl monomers in forming fluoroelastomers. Copolymers resulting from this copolymerization process and process for cr... | 06/22/2004 |
| 6743765 | Compositions comprising 1,1,1,3,3-pentafluorobutane and use of these compositions Compositions comprising 1,1,1,3,3-pentafluorobutane and more than 5% by weight of at least one non-flammable fluoro compound, and use thereof. ... | 06/01/2004 |
| 6743373 | Process for the separation of enantiomers and enantiopure reagent Process for the separation of enantiomers comprising at least one free functional group, in which process a reagent based on an enantiopure amino acid is reacted in basic medium with a mixture comprising enantiometers. ... | 06/01/2004 |
| 6730817 | Method for preparing 1,1,1,3,3-pentafluoropropane 1,1,1,3,3-Pentafluoropropane is produced by reaction between 1,1,1,3,3-pentachloropropane and hydrogen fluoride in the presence of a hydrofluorination catalyst. The 1,1,1,3,3-pentachloropropane may advantageously be obtained by reaction between vinyl chloride and te... | 05/04/2004 |
