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| Number | Title | Issue Date |
| 7928272 | Conversion of fluorocarbons A process is disclosed for the conversion of fluorocarbons into fluorinated unsaturated compounds useful as monomers or other chemical precursors, such as C2H2F2. The process comprises reacting a hydrocarbon feed (20) and a fl... | 04/19/2011 |
| 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 |
| 6969701 | Azeotrope-like compositions of tetrafluoropropene and trifluoroiodomethane Provided are azeotrope-like compositions comprising tetrafluoropropene and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants. ... | 11/29/2005 |
| 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 |
| 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 |
| 6534456 | Extrudable multiphase composition comprising a lamellar phase and an isotropic phase The invention relates to a plurality of liquid cleansing compositions having at least one lamellar phase which possesses a lotion-like appearance conveying signals of enhanced moisturization and at least one abutting isotropic phase having enhanced cleans... | 03/18/2003 |
| 6518467 | Method of making hydrofluorocarbons and hydrochlorofluorocarbons A method of producing hydrofluorocarbons and/or hydrochlorofluorocarbons by using halogenated alkanes as a principal reactant. Generally, the method comprises the step of: (a) reacting a starting halogenated alkane corresponding to the formula (I): H... | 02/11/2003 |
| 6403848 | Preparation of hexafluoropropylene from the pyrolysis of trifluoromethane and tetrafluoroethylene The present invention relates to a process for preparing hexafluoropropylene(CF3 CF.dbd.CF2, HFP) from the pyrolysis of trifluoromethane(CHF3, R23) and tetrafluoroethylene(C2 F4, TFE) and more particu... | 06/11/2002 |
| 6025532 | Process for the manufacture of hydrofluoroalkanes In order to manufacture pentafluoroethane (F125) and/or 1,1,1,2,3,3,3-haptafluoropropane (F227ea), a trifluoromethane gas stream is subjected to pyrolysis and then the mixture of gases which result from this pyrolysis is brought into contact with a fluori... | 02/15/2000 |
| 5910615 | Producing CF3 CH2 CF3 and/or CF3 CH=CF2 by the conversion of -hydroperfluoroisobutyric acid compounds A process is disclosed for producing 1,1,1,3,3,3-hexafluoropropane and/or 1,1, 1,3,3-pentafluoropropene from (CF3)2 CHCOOH and/or its water soluble salts. The process involves providing a mixture containing water and such carboxy com... | 06/08/1999 |
| 5672784 | Synthesis of tetrafluoroethylene In the process of pyrolyzing chlorodifluoromethane to form tetrafluoroethylene, yield is improved by having a controlled concentration of perfluorocyclobutane in the feed to pyrolysis.... | 09/30/1997 |
| 5594159 | Producing CF3 CH2 CF3 and/or CF3 CH.dbd.CF2 by the conversion of alpha-hydroperfluoroisobutyric acid compounds A process is disclosed for producing 1,1,1,3,3,3-hexafluoropropane and/or 1,1,1,3,3-pentafluoropropene from (CF3)2 CHCOOH and/or its water soluble salts. The process involves providing a mixture containing water and such carboxy comp... | 01/14/1997 |
| 5364990 | Aqueous submersion pyrolyzation of fluoroform A preparation of perfluoroolefins from fluoroform is described in which the fluoroform is pyrolyzed in a flame submerged in water in which the water acts as the walls of a reaction vessel.... | 11/15/1994 |
| 5110996 | Production of vinylidene fluoride Production of vinylidene fluoride by reacting dichlorodifluoromethane with methane in a heated reactor element containing a non-metallic packing material which is stable at the operating temperatures of the process, wherein the reactor element subjects th... | 05/05/1992 |
| 4973773 | Production of tetrafluoroethylene Preparation of high yields of tetrafluoroethylene by preferably contacting pentafluoroethane and/or trifluoromethane with hot gas, preferably argon (ࣙ2000° K.) followed by rapid cooling of the reaction mixture, in less than one second, i.e., 0.001 to 0... | 11/27/1990 |
| 4849554 | Production of tetrafluoroethylene and hexafluoropropylene Production of tetrafluoroethylene and hexafluoropropylene in very high combined selectivity by pyrolysis of chlorodifluoromethane, optionally using gaseous diluent wherein the pyrolysis is effected under substantially isothermal and uniform conditions, th... | 07/18/1989 |
| 4098806 | Process for functionalizing perfluorohalogenoalkanes The present invention relates to the process of preparing perfluoro functional compounds from a perfluorohalogenoalkane having the general formula: wherein RF is a saturated, unsaturated, straight, or branched chain perfluoroalkyl radical conta... | 07/04/1978 |
| 4053529 | Process for the manufacture of vinylidene fluoride A process for the manufacture of vinylidene fluoride by pyrolysis of 1-chloro-1,1-difluoroethane at temperatures of between 500° and 610° C comprises conducting the pyrolysis in the simultaneous presence of from 0.01 to 10 mol % of carbon tetrachloride ... | 10/11/1977 |
