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| Number | Title | Issue Date |
| 7674756 | Solvent compositions containing chlorofluoroolefins or fluoroolefins Compositions and methods based on the use of fluoroalkene containing from 3 to 4 carbon atoms and at least one carbon-carbon double bond, such as HFO-1214, HFO-HFO-1233, or HFO-1354, having properties highly beneficial in solvent cleaning applications. ... | 03/09/2010 |
| 7655610 | Blowing agent compositions comprising fluorinated olefins and carbon dioxide Disclosed are compositions useful in a wide variety of applications, including as blowing agents. The preferred blowing agents comprise from about 1 to about 40 percent, on a weight basis, of carbon dioxide (CO2) and from about 99 to about 60 percent, on ... | 02/02/2010 |
| 7629306 | Compositions comprising tetrafluoropropene and carbon dioxide Disclosed are compositions useful in a wide variety of applications, including heat transfer fluids which possess a highly desirable and unexpectedly superior combination of properties, and heat transfer systems and methods based on these fluids. The preferred heat ... | 12/08/2009 |
| 7622435 | Methods of replacing refrigerant Provided are azeotrope-like compositions comprising tetrafluoropropene and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and sprayable compositions, including aerosol propellants.... | 11/24/2009 |
| 7605117 | Methods of replacing refrigerant Provided are azeotrope-like compositions comprising tetrafluoropropene and pentafluoropropene and uses thereof, including use in refrigerant compositions, blowing agent compositions, foamable compositions, foams, sterilant compositions, sprayable compositions, and s... | 10/20/2009 |
| 7597818 | Azeotrope-like compositions of tetrafluoropropenes and bromofluoropropenes Mixtures of tetrafluoropropenes with bromofluoropropenes provide compositions that have boiling points within an acceptable range, have good chemical stability, low GWP and are essentially non-flammable. ... | 10/06/2009 |
| 7597744 | Use of molecular sieves for the removal of HFC-23 from fluorocarbon products Use of molecular sieves to reduce the amount of trifluoromethane (HFC-23) present in a mixture of HFC-23 with other materials, particularly from mixtures containing HFC-23 and trifluoroiodomethane (CF3I). ... | 10/06/2009 |
| 7563384 | Essentially non-flammable low global warming compositions Mixtures of heptafluorobutene with tetrafluoropropenes provide compositions that have boiling points within an acceptable range, have good chemical stability, low GWP and are preferably essentially non-flammable. ... | 07/21/2009 |
| 7557254 | Method for producing fluorinated organic compounds A method for preparing fluorinated organic compounds wherein at least one fluorinated olefin is reacted with methyl fluoride in the gas-phase and in the presence of a Lewis Acid catalyst to form at least one product having at least 3 carbon atoms. ... | 07/07/2009 |
| 7534366 | Compositions containing fluorine substituted olefins The use of pentafluoropropene (HFO-1225) and tetrafluoropropene (HFO-1234) in refrigeration equipment is disclosed. These materials are generally useful as refrigerants for heating and cooling, as blowing agents, as aerosol propellants, as solvent composition, and a... | 05/19/2009 |
| 7524805 | Azeotrope-like compositions of tetrafluoropropene and hydrofluorocarbons Provided are azeotrope-like compositions comprising tetrafluoropropene and hydrofluorocarbons and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants. ... | 04/28/2009 |
| 7485760 | Integrated HFC trans-1234ze manufacture process An integrated process for the manufacture of HFO trans-1,3,3,3-tetrafluoropropene (HFO trans-1234ze) by first catalytically dehydrofluorinating 1,1,1,3,3-pentafluoropropane to thereby produce a mixture of cis-1,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoroprop... | 02/03/2009 |
| 7479477 | Azeotrope-like compositions of difluoromethane and trifluoroiodomethane Provided are azeotrope-like compositions comprising difluoromethane and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants. ... | 01/20/2009 |
| 7473716 | Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and hydrocarbons Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and at least one hydrocarbon selected from the group n-pentane, iso-pentane, cyclopentane, n-hexane and iso-hexane are provided. The compositions of the invention are useful in the preparation of polyuretha... | 01/06/2009 |
| 7470828 | Direct conversion of HCFC 225ca/cb mixture to HFC 245cb and HFC 1234yf Provided are methods for producing hydrofluorocarbons via the selective reduction of a halocarbon blend comprising 1,3-dichloro-1,1,2,2,3-pentafluoropropane. ... | 12/30/2008 |
| 7465698 | Azeotrope-like compositions of difluoromethane and trifluoroiodomethane Provided are azeotrope-like compositions comprising difluoroethane and trifluoroiodomethane, azeotrope-like compositions comprising difluoroethane, tetrafluoropropene and trifluoroiodomethane, and uses thereof, including use in refrigerant compositions, refrigeratio... | 12/16/2008 |
| 7428816 | Working fluids for thermal energy conversion of waste heat from fuel cells using Rankine cycle systems A process for recovering waste heat which comprises: (a) passing a liquid phase working fluid through a heat exchanger in communication with a process which produces the waste heat; (b) removing a vapor phase working fluid from the heat exchanger; (c) passing the va... | 09/30/2008 |
| 7413674 | Azeotrope-like trifluoroiodomethane compositions Provided are azeotrope-like compositions comprising difluoroethane and trifluoroiodomethane, azeotrope-like compositions comprising difluoroethane, tetrafluoropropene and trifluoroiodomethane, and uses thereof, including use in refrigerant compositions, refrigeratio... | 08/19/2008 |
| 7396965 | Method for producing fluorinated organic compounds A method for preparing fluorinated organic compounds wherein at least one fluorinated olefin is reacted with methyl fluoride in the gas-phase and in the presence of a Lewis Acid catalyst to form at least one product having at least 3 carbon atoms. ... | 07/08/2008 |
| 7396485 | Azeotrope-like compositions of difluoromethane The invention relates to azeotropic and azeotrope-like mixtures of HFC-32, HCl, and Cl2, and processes for separating the azeotrope-like mixtures of HFC-32 and HCL and HFC-32, HCL and Cl2. ... | 07/08/2008 |
| 7371905 | Method of producing hydrofluorocarbons A process for producing fluorinated C1 HFCs comprising fluorinating a reactive organic compound to produce a reaction product comprising at least the desired C1 HFC, unreacted reactive organic compound and a byproduct having a boiling point between the boiling point... | 05/13/2008 |
| 7371363 | Methods of purifying hydrogen fluoride Provided are methods of producing anhydrous hydrogen fluoride comprising: providing a mixture comprising hydrogen fluoride and at least one halogenated hydrocarbon; and extracting hydrogen fluoride from the mixture by contacting the mixture with a solution of less t... | 05/13/2008 |
| 7371904 | Processes for synthesis of 1,3,3,3-tetrafluoropropene Disclosed is a process for the synthesis of 1,3,3,3-tetrafluoropropene which comprises, in one embodiment, reacting a compound of CF3X1 with a compound of CX2H═CHX3, wherein X1, X2, and X3 | 05/13/2008 |
| 7345209 | Processes for synthesis of 1,3,3,3-tetrafluoropropene Disclosed is a process for the synthesis of 1,3,3,3-tetrafluoropropene that comprises, in one preferred embodiment, providing a compound of the formula CF3CH2CHFX, wherein X is a selected from the group consisting of chlorine, bromine and iodin... | 03/18/2008 |
| 7341984 | 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. ... | 03/11/2008 |
| 7335804 | Direct conversion of HCFC 225ca/cb mixture Provided are methods for producing hydrofluorocarbons via the selective reduction of a halocarbon blend comprising 1,3-dichloro-1,1,2,2,3-pentafluoropropane. ... | 02/26/2008 |
| 7288211 | Hydrofluorocarbon blown foam and method for preparation thereof The invention relates to the addition of α-methyl styrene, isobutanol and/or isopropanol to reduce vapor pressure, improve k-factor, enhance the solubility of the blowing agent in the premix and/or improve the processing characteristics of polyurethane and polyisoc... | 10/30/2007 |
| 7265082 | Azeotrope-like compositions of 1,1,1,3,3-pentachloropropane and carbon tetrachloride The invention relates to azeotropic and azeotrope-like mixtures of 1,1,1,3,3-pentachloropropane (HCC-240fa) and carbon tetrachloride and a process for separating the azeotrope-like mixtures. The compositions of the invention are useful as an intermediate in the prod... | 09/04/2007 |
| 7238299 | Heat transfer fluid comprising difluoromethane and carbon dioxide Disclosed are heat transfer fluids which possess a highly desirable and unexpectedly superior combination of properties, and heat transfer systems and methods based on these fluids. The heat transfer fluid comprise from about 30 to about 70 percent, on a molar basis... | 07/03/2007 |
| 7214839 | Method of making hydrofluorocarbons A manufacturing process for making hydrofluorocarbons (HFCs), by reacting a hydrochlorocarbon and HF in a liquid phase catalytic reactor using a large mole ratio of HF to hydrochlorocarbon to minimize formation of high boiling by-products and improve HF consumption ... | 05/08/2007 |
| 7214294 | Azeotrope-like compositions of pentafluoropropane and water This invention provides azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and water that are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous di... | 05/08/2007 |
| 7205444 | 1,1,1,3,3,3-hexafluoropropane purification with photochlorination equipment A continuous, vapor phase method for purifying a crude mixture of 1,1,1,3,3,3-hexafluoropropane and one or more unsaturated fluorocarbon compounds, the process comprising: a) providing a photochlorinator vessel comprising | 04/17/2007 |
| 7196236 | Direct one-step synthesis of trifluoromethyl iodide A catalytic one-step process for the production of CF3I by reacting, in the presence of a source of oxygen, a source of iodine a reactant of the formula: CF3R where R is —COOH, —COX, —CHO, —COOR2 and —SO... | 03/27/2007 |
| 7189311 | Purification of difluoromethane A method for separating difluoromethane from a mixture of difluoromethane and at least one impurity, the method involving extractively distilling the mixture using dichloromethane as an extractive agent to recover a product stream of purified difluoromethane having ... | 03/13/2007 |
| 7189884 | Processes for synthesis of tetrafluoropropene Disclosed in one embodiment is a process for the synthesis of 1,3,3,3-tetrafluoropropene that comprises (a) reacting a compound of formula (I) X1X2 with a compound of formula (II) CF3CH═CH2 to produce a reaction product ... | 03/13/2007 |
| 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 |
| 7132578 | One-step synthesis of CF-1 A process for the preparation of trifluoromethyl iodide is provided. The process includes the step of contacting in a reactor a compound represented by the formula: CF3—W and a compound represented by the for... | 11/07/2006 |
| 7102040 | Fluoropolymer lined metallic vessel design The invention provides an apparatus useful in fluorinating organic compounds, or more particularly to a reactor system suitable for the fluorination of organic compounds on a commercial scale. The apparatus is also useful in chemical reactions including heating or c... | 09/05/2006 |
| 7098176 | Azeotrope-like compositions of tetrafluoropropene and pentafluoropropene Provided are azeotrope-like compositions comprising tetrafluoropropene and pentafluoropropene and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants. ... | 08/29/2006 |
| 7091388 | Method of making 1,1,3,3,3-pentafluoropropene The invention provides an economic process for the manufacture of the hydrofluorocarbon 1,1,3,3,3-pentafluoropropene (HFC-1225zc). HFC-1225zc can be made from the dehydrochlorination of 1-chloro-1,1,3,3,3-pentafluoropropane (HCFC-235fa). Alternatively, HFC-1225zc ca... | 08/15/2006 |