Famous Patents
Pong, the Atari creation that launched the computer game craze, came with these instructions: "Avoid missing ball for high score."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8071825 | Method for producing fluorinated organic compounds Disclosed are processes for the production of fluorinated olefins, preferably adapted to commercialization of CF3CF═CH2 (1234yf). In certain preferred embodiments the processes comprise first exposing a compound of Formula (IA) C(X)... | 12/06/2011 |
| 8067649 | Method for producing fluorinated organic compounds Disclosed is a process for producing tetrafluoropropene comprising: (a) catalytically fluorinating at least one tetrafluoropropene in a first reactor to produce HCFO-1233xf; (b) reacting said HCFO-1233xf with hydrogen fluoride in a second reactor to produce HCFC-244... | 11/29/2011 |
| 8058486 | Integrated process to produce 2,3,3,3-tetrafluoropropene A method for preparing 2,3,3,3-tetrafluoroprop-1-ene comprising (a) providing a starting composition comprising at least one compound having a structure selected from Formulae I, II and III: CX2═CCl—CH2X (Formula I) ... | 11/15/2011 |
| 8013194 | Process for the manufacture of fluorinated olefins A method for producing 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene using a single set of four unit operations, the unit operations being (1) hydrogenation of a starting material comprising hexafluoropropene and optionally recycled 1,1,1,2,3-pentaf... | 09/06/2011 |
| 7994371 | Process for making chlorotrifluoroethylene from 1,1,2-trichlorotrifluoroethane Disclosed is a process for the making chlorotrifluoroethylene. The process comprises the step of reacting 1,1,2-trichlorotrifluoroethane with a reducing metal in the presence of a polar aprotic solvent under conditions sufficient to form chlorotrifluoroethylene.... | 08/09/2011 |
| 7964759 | Method for producing 3,3,3-trifluoropropyne Disclosed is a method for producing 3,3,3-trifluoropropyne, which is characterized in that a base is reacted with (Z)-1-halogeno-3,3,3-trifluoropropene represented by formula [1]. It is possible by this production method to obtain 3,3,3-trifluoropropyne with high yi... | 06/21/2011 |
| 7956225 | Polyfluoro-1-alkene and method for producing the same A polyfluoro-1-alkene represented by the general formula: CF3(CF2)nCH2(CF2)mCH═CH2 [I], wherein n is an integer of 0 to 5, and m is an integer of 1 to 7, is produced by reacting a polyflu... | 06/07/2011 |
| 7897823 | Process for production of azeotrope compositions comprising hydrofluoroolefin and hydrogen fluoride and uses of said azeotrope compositions in separation processes Disclosed herein is a process to produce an azeotrope composition comprising a hydrofluoroolefin and hydrogen fluoride, said process comprising, dehydrofluorinating a hydrofluorocarbon containing at least one hydrogen and at least one fluorine on adjacent carbons, t... | 03/01/2011 |
| 7795481 | Method of hydrodechlorination to produce dihydrofluorinated olefins Disclosed herein is a process for the preparation of fluorine-containing olefins comprising contacting a chlorofluoroalkene with hydrogen in the presence of a catalyst at a temperature sufficient to cause replacement of the chlorine substituents with hydrogen. Also ... | 09/14/2010 |
| 7795480 | Method for producing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf) The present invention relates to an improved method for manufacturing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf) by reacting 1,1,2,3-tetrachloropropene, 1,1,1,2,3-pentachloropropane, and/or 2,3,3,3-tetrachloropropene with hydrogen fluoride, in a vapor phase reac... | 09/14/2010 |
| 7723552 | Process for making chlorotrifluoroethylene from 1,1,2-Trichlorotrifluoroethane A process for the making chlorotrifluoroethylene. The process has the step of reacting 1,1,2-trichlorotrifluoroethane with a reducing metal in the presence of a polar aprotic solvent under conditions sufficient to form chlorotrifluoroethylene. ... | 05/25/2010 |
| 7423188 | Azeotrope compositions comprising E-1,3,3,3-tetrafluoropropene and hydrogen fluoride and uses thereof Disclosed herein are azeotrope and near-azeotrope compositions comprising E-1,3,3,3-tetrafluoropropene and hydrogen fluoride. These azeotrope and near-azeotrope compositions are useful in processes to produce E-1,3,3,3-tetrafluoropropene and in processes to purify E... | 09/09/2008 |
| 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 |
| 7388117 | Azeotrope compositions comprising 1,2,3,3,3-pentafluoropropene and hydrogen fluoride and uses thereof Disclosed herein are azeotrope compositions comprising 1,2,3,3,3-pentafluoropropene and hydrogen fluoride. The azeotrope compositions are useful in processes to produce and in processes to purify 1,2,3,3,3-pentafluoropropene. ... | 06/17/2008 |
| 7385094 | Azeotrope compositions comprising tridecafluoro-3-heptene and hydrogen fluoride and uses thereof Disclosed herein are azeotrope and near-azeotrope compositions comprising 1,1,1,2,2,4,5,5,6,6,7,7,7-tridecafluoro-3-heptene (HFC-162-13mczy, CF3CF2CH═CFCF2CF2CF3) and 1,1,1,2,2,3,5,5,6,6,7,7,7-tridecafluoro-3-... | 06/10/2008 |
| 7358405 | Dehalogenation process A process for obtaining vinyl compounds by dehalogenation of halofluorinated compounds with aromatic substituents, having formula: T-Ar—(O)y—CFX′—CF2X″ (I) wherein: X′=F, C... | 04/15/2008 |
| 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 |
| 7321071 | Process for the production of water-soluble fluorine-containing vinyl ethers The present invention relates to a method for producing a water-soluble fluorine-containing vinyl ether which comprises subjecting a fluorine-containing 2-alkoxypropionic acid derivative represented by the following general formula (I): | 01/22/2008 |
| 7312367 | 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... | 12/25/2007 |
| 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 |
| 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 |
| 7230146 | Process for producing fluoropropenes Dehydrohalogenation processes for the preparation of fluoropropenes from corresponding halopropanes, in which the fluoropropenes have the formula CF3CY═CXNHP, wherein X and Y are independently hydrogen or a halogen selected from fl... | 06/12/2007 |
| 7164050 | Preparation of halo-olefin A process for preparing a halo-olefin to minimize one or more side reactions which form at least one impurity, said process comprising contacting a halogenated hydrocarbon with a metal dehalogenating agent dissolved in a solvent under conditions sufficient to dehalo... | 01/16/2007 |
| 7132577 | Method of inhibiting coke formation in ethylene dichloride pyrolysis cracker Provided is a method of inhibiting the formation of coke in an ethylene dichloride to vinyl chloride monomer pyrolysis cracker. The coke formation, which occurs during an ethylene dichloride pyrolysis reaction, is inhibited by contacting a heat-transfer surface of t... | 11/07/2006 |
| 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 |
| 7033952 | Apparatus and method using a remote RF energized plasma for processing semiconductor wafers Chemical generator and method for generating a chemical species at a point of use such as the chamber of a reactor in which a workpiece such as a semiconductor wafer is to be processed. The species is generated by creating free radicals, and combining the free radic... | 04/25/2006 |
| 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 |
| 6689923 | Perfluoroolefin-hydrocarbon hybrid compound, method of producing the same and method of producing perfluoroalkyl radical The present invention provides a perfluoroolefin-hydrocarbon hybrid compound represented by the following general formula (1): [(CF3)2 CX][(CF3)2 CY]C.dbd.C(CF3)Z (1) wherein X, Y and Z may be the same or dif... | 02/10/2004 |
| 6683226 | Process for the production of hexafluoropropylene from CClF2CClFCF3 and azeotropes of CClF2CClFCF3 with HF A process for the manufacture of CF3 CF.dbd.CF2 is disclosed. The process involves contacting 2,3-dichloro-1,1,1,2,3,3-hexafluoropropane with at least 0.1 mole of hydrogen in a reaction vessel of titanium, nickel or iron or their all... | 01/27/2004 |
| 6380446 | Process for dehydrohalogenation of halogenated compounds Halogenated compounds are dehydrohalogenated in a multi-stage bubble reactor wherein agitation of the reactor contents is provided by in situ generation and vaporization of reaction product having a boiling point lower than that of the reactants.... | 04/30/2002 |
| 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 |
| 6166156 | Method for making photocurable halofluorinated acrylates Halofluorinated alkylene monomers are made by a method comprising the steps of: (a) subjecting a first polymer which is the reaction product of a fluorinated vinyl monomer and a vinyl comonomer to dehydrohalogenation to form a second polymer; (b) treating... | 12/26/2000 |
| 6031141 | Fluoroolefin manufacturing process This invention provides a process for the manufacture of a fluoroolefin of the formula (R1)2 C.dbd.C(R1)2 wherein each R1 is independently selected from the group consisting of --H, --F, --CF3, ... | 02/29/2000 |
| 5763703 | Manufacturing method for hexafluorocylobutene and hexafluorocyclobutane Manufacturing method for hexafluorocyclobutene in which 1,2-dichlorohexafluorocyclobutane is dechlorinated using hydrogen in the presence of a metal oxide and/or silicon oxide catalyst. Manufacturing method for (Z)-1,2,3,3,4,4-hexafluorocyclobutane which ... | 06/09/1998 |
| 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 |
