Acyclic Patents (Class 570/134)
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Patent number: 10611709Abstract: Disclosed herein are methods of producing E-CF3CH?CHCF3 in a liquid phase. Also disclosed are methods of preparing CF3CH2CHClCF3 and CF3CHClCH2CCl3.Type: GrantFiled: September 10, 2018Date of Patent: April 7, 2020Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Sheng Peng, Andrew Jackson, Stephan Brandstadter, Mario Joseph Nappa
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Patent number: 10414704Abstract: The present invention provides a process of catalytic fluorination in gas phase of product 1,1,1,2,3-pentachloropropane or/and 1,1,2,2,3-pentachloropropane into product 2-chloro-3,3,3-trifluoropropene in presence of a catalyst and oxygen.Type: GrantFiled: February 3, 2016Date of Patent: September 17, 2019Assignee: Arkema FranceInventors: Philippe Bonnet, Anne Pigamo, Laurent Wendlinger, Nicolas Doucet
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Patent number: 10399915Abstract: There is provided an economically advantageous manufacturing method capable of efficiently obtaining 1-chloro-2,3,3,3-tetrafluoropropene by using 1,2-dichloro-2,3,3,3-tetrafluoropropane as a raw material. A manufacturing method of 1-chloro-2,3,3,3-tetrafluoropropene is characterized in that it includes subjecting 1,2-dichloro-2,3,3,3-tetrafluoropropane to a dehydrochlorination reaction in a liquid phase in a presence of a base.Type: GrantFiled: June 20, 2018Date of Patent: September 3, 2019Assignee: AGC Inc.Inventors: Tomoaki Taniguchi, Shoji Furuta, Hidefumi Shiota
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Patent number: 10047026Abstract: The present disclosure provides a method for separating 244bb from 1233xf by using solid adsorbent selected from molecular sieves having an average pore size of 5 ? or greater.Type: GrantFiled: April 22, 2016Date of Patent: August 14, 2018Assignee: HONEYWELL INTERNATIONAL INCInventors: Haiyou Wang, Daniel C. Merkel, Hsueh Sung Tung, Michael Gatter
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Patent number: 9862659Abstract: A new chromium-containing fluorination catalyst is described. The catalyst comprises an amount of zinc that promotes activity and from 0.1 to 8.0% by weight of the chromium in the catalyst based on the total weight of the chromium is present as chromium (VI). The use of the zinc-promoted, chromium-containing catalyst in a fluorination process in which a hydrocarbon or halogenated hydrocarbon is reacted with hydrogen fluoride in the vapor-phase at elevated temperatures is also described.Type: GrantFiled: September 4, 2009Date of Patent: January 9, 2018Assignee: MEXICHEM AMANCO HOLDING S.A. de C.V.Inventor: Andrew P. Sharratt
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Patent number: 9637429Abstract: A process is provided comprising contacting and reacting the compound CF3CF2CHXCl, wherein X is H or Cl, or the compound CF3CF?CXCl, wherein X is H or Cl, with hydrogen in the presence of a catalyst consisting essentially of Cu, Ru, Cu—Pd, Ni—Cu, and Ni—Pd, to obtain as a result thereof reaction product comprising hydrofluoropropenes or intermediates convertible to said hydrofluoropropenes, notably CF3CF?CH2 and CF3CH?CHF.Type: GrantFiled: April 7, 2015Date of Patent: May 2, 2017Assignee: THE CHEMOURS COMPANY FC, LLCInventor: Xuehui Sun
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Patent number: 9353303Abstract: To provide a working medium for heat cycle, of which combustibility is suppressed, which has less influence over the ozone layer, which has less influence over global warming and which provides a heat cycle system excellent in the cycle performance (capacity), and a heat cycle system, of which the safety is secured, and which is excellent in the cycle performance (capacity). A working medium for heat cycle comprising 1,1,2-trifluoroethylene is employed for a heat cycle system (such as a Rankine cycle system, a heat pump cycle system, a refrigerating cycle system or a heat transport system).Type: GrantFiled: November 19, 2013Date of Patent: May 31, 2016Assignee: Asahi Glass Company, LimitedInventor: Masato Fukushima
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Patent number: 9309372Abstract: Disclosed herein are rubber compositions suitable for use in tire treads comprising (a) at least one conjugated diene polymer or copolymer; (b) at least one filler; (c) a curative package; and (d) at least one of: (i) from 0.2 to 10 phr of at least one halogenated hydrocarbon wax, or (ii) from 0.2 to 10 phr of at least one silicone-containing wax comprising a functionalized polyalkylsiloxane, a functionalized polyalkylsilsesquioxane resin, or combinations thereof. In certain embodiments, the at least one halogenated hydrocarbon wax is a chlorinated hydrocarbon or a fluorinated hydrocarbon wax.Type: GrantFiled: March 1, 2013Date of Patent: April 12, 2016Assignee: Bridgestone CorporationInventors: Xiao-Dong Pan, Yaohong Chen, Mindaugas Rackaitis, James D. Ulmer, Nicole Capitos-Davis
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Patent number: 8999196Abstract: The invention is to provide a new liquid crystal compound having a high clearing point, a good compatibility with other compounds, a small viscosity, and a high stability to heat, light and so forth; compound (1) is provided: R1CF2nR2??(1) wherein, for example, R1 is alkyl having 4 to 10 carbons or —(CH2)2—CH?CH2, R2 is alkyl having 2 to 10 carbons, n is 8, and R1 and R2 are not allowed to be straight-chain alkyl having an identical number of carbons.Type: GrantFiled: August 23, 2012Date of Patent: April 7, 2015Assignees: JNC Corporation, JNC Petrochemical CorporationInventors: Hiroyuki Tanaka, Sayaka Fujimori
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Patent number: 8957264Abstract: A process for producing a fluoroalkyl iodide as a telomer Rf(CF2CF2)nI (wherein Rf is a C1-10 fluoroalkyl group, and n is an integer of from 1 to 6) by telomerization from a fluoroalkyl iodide represented by the formula RfI (wherein Rf is as defined above) as a telogen and tetrafluoroethylene (CF2CF2) as a taxogen, which comprises a liquid phase telomerization step of supplying a homogeneous liquid mixture of the telogen and the taxogen from the lower portion of a tubular reactor, moving the mixture from the lower portion towards the upper portion of the reactor in the presence of a radical initiator over a retention time of at least 5 minutes while the reaction system is kept in a liquid phase state under conditions where no gas-liquid separation will take place, so that the taxogen supplied to the reactor is substantially consumed by the reaction in the reactor, and drawing the reaction product from the upper portion of the reactor.Type: GrantFiled: December 11, 2013Date of Patent: February 17, 2015Assignee: Asahi Glass Company, LimitedInventors: Shoji Furuta, Yusuke Sugahara, Keiko Nakase, Keisuke Mori
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Publication number: 20140363361Abstract: The disclosure provides an LS methane hydrate containing a plurality of methane hydrate crystals and lignosulfonate. The disclosure also provides a method of making an LS methane hydrate by combining methane gas, liquid or solid water, and LS at controlled temperature and starting pressure for a time sufficient to form LS methane hydrate. The disclosure further provides a method of producing energy from an LS methane hydrate by providing an LS methane hydrate directly to a combustion chamber, whereby methane in the methane hydrate and LS are converted to energy in the combustion chamber and water in the methane hydrate is converted to steam. The disclosure additionally provides a method of releasing methane from an LS methane hydrate by heating an LS methane hydrate.Type: ApplicationFiled: August 26, 2014Publication date: December 11, 2014Applicant: THE TEXAS STATE UNIVERSITY-SAN MARCOSInventors: Weixing Wang, Luyi Sun
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Publication number: 20140305125Abstract: An organic Rankine cycle working fluid comprising at least one compound having formula (I): RNQ, wherein R is fluorinated or non-fluorinated methyl, ethyl, vinyl or ethynyl, N is element nitrogen, the connection of R—N is a ring structure or a straight chain structure, and Q is a hydrogen and/or at least one fluorine atom. A process for converting thermal energy into mechanical energy, a method for power generation, an organic Rankine cycle system, and the use of the working fluid for heat transfer or in a mechanical power generation device are also provided. The organic Rankine cycle working fluid has a high energy conversion efficiency, low flammability, low toxicity and low corrosion on copper.Type: ApplicationFiled: April 21, 2011Publication date: October 16, 2014Applicant: EMMALJUNGA BARNVAGNSFABRIK ABInventors: Jingtao Wang, Bo Pang, Christian Persson
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Publication number: 20140303409Abstract: The present invention relates, in part, to the discovery that the presence of HF in a HCFC-244bb feedstream in a reaction for the preparation of HFO-1234yf results in selectivity changeover from HFO-1234yf to HCFO-1233xf. By substantially removing HF, it is shown that the selectivity to HFO-1234yf via dehydrochlorination of HCFC-244bb is improved.Type: ApplicationFiled: September 29, 2012Publication date: October 9, 2014Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Haiyou Wang, Hsueh Sung Tung
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Publication number: 20140303410Abstract: Disclosed is a process involving contacting a hydrohalobutane selected from the group consisting of CF2HCHClCH2CCl2H, CF3CHClCH2CCl2H, CF3CHClCH2CCl3, CF3CClHCHFCCl2H and CF3CClHCHFCCl3, with HF in a reaction zone in the presence of an antimony halide catalyst selected from SbCl5 and SbF5 to form a first product mixture containing a hydromonochlorofluorobutane. Also disclosed is a process involving contacting a hydrohalopentane selected from the group consisting of CF2HCHClCH2CX2CX3 and CF3CHClCH2CX2CX3, wherein each X is independently selected from the group consisting of F and Cl, and not all X are fluorines, with HF in a reaction zone in the presence of an antimony halide catalyst selected from SbCl5 and SbF5to form a first product mixture containing a hydromonochlorofluoropentane. A compound of the formula CF3CHClCH2CHF2 is also disclosed.Type: ApplicationFiled: October 5, 2012Publication date: October 9, 2014Inventor: Ekaterina N. Swearingen
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Publication number: 20140264174Abstract: Provided are azeotropic or azeotrope-like mixtures of 1,3,3,3-tetrachloroprop-1-ene (HCO-1230zd) and hydrogen fluoride. Such compositions are useful as a feed stock in the production of HFC245fa and HCFO1233zd.Type: ApplicationFiled: March 13, 2013Publication date: September 18, 2014Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Haiyou Wang, Hsueh Sung Tung, Ryan Hulse, Hang T. Pham
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Publication number: 20140243547Abstract: The present invention relates to mono- or bi-functional (per)fluoropolyethers comprising a linear (per)fluoropolyether chain having two ends, wherein one or two ends contain —CF(CF3)COF groups, to a process for preparing them and to their use as precursors in the preparation of further functionalised (per)fluoropolyethers. The invention also relates to these further functionalised (per)fluoropolyethers.Type: ApplicationFiled: September 25, 2012Publication date: August 28, 2014Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Simonetta Antonella Fontana, Claudio Adolfo Pietro Tonelli, Piero Gavezotti
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Patent number: 8729321Abstract: A process for producing a fluoroalkyl iodide as a telomer Rf(CF2CF2)nI (wherein Rf is a C1-10 fluoroalkyl group, and n is an integer of from 1 to 6) by telomerization from a fluoroalkyl iodide represented by the formula RfI (wherein Rf is as defined above) as a telogen and tetrafluoroethylene (CF2CF2) as a taxogen, which comprises a liquid phase telomerization step of supplying a homogeneous liquid mixture of the telogen and the taxogen from the lower portion of a tubular reactor, moving the mixture from the lower portion towards the upper portion of the reactor in the presence of a radical initiator over a retention time of at least 5 minutes while the reaction system is kept in a liquid phase state is under conditions where no gas-liquid separation will take place, so that the taxogen supplied to the reactor is substantially consumed by the reaction in the reactor, and drawing the reaction product from the upper portion of the reactor.Type: GrantFiled: April 19, 2006Date of Patent: May 20, 2014Assignee: Asahi Glass Company, LimitedInventors: Shoji Furuta, Yu{grave over (s)}uke Sugahara, Keiko Nakase, Keisuke Mori
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Patent number: 8696926Abstract: A process is disclosed for making CF3CH2CHF2, CF3CH?CHF and/or CF3CH?CHCl. The process involves reacting at least one starting material selected from the group consisting of halopropanes of the formula CX3CHClCH2X, halopropenes of the formula CX3CCl?CH2 and halopropenes of the formula CX2?CClCH2X, wherein each X is independently F or Cl, with HF in a reaction zone to produce a product mixture comprising HF, HCl, CF3CH2CHF2, CF3CH?CHF and CF3CH?CHCl; and recovering the CF3CH2CHF2, CF3CH?CHF and/or CF3CH?CHCl from the product mixture. Also disclosed is a process for making CF3CF2CH3 and/or CF3CF?CH2. In each of the processes the molar ratio of HF to total amount of starting material fed to the reaction zone is at least stoichiometric. Also disclosed is an azeotropic composition comprising CF3CCl?CH2, and HF. Also disclosed is an azeotropic composition comprising CF3CF2CH3, and HF.Type: GrantFiled: November 29, 2012Date of Patent: April 15, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert
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Publication number: 20140091379Abstract: A fluorocarbon coating comprises an amorphous structure with CF2 bonds present in an atomic percentage of at least about 15%, and having a refractive index of less than about 1.4. The fluorocarbon coating can be deposited on a substrate by placing the substrate in a process zone comprising a pair of process electrodes, introducing a deposition gas comprising a fluorocarbon gas into the process zone, and forming a capacitively coupled plasma of the deposition gas by coupling energy to the process electrodes.Type: ApplicationFiled: September 28, 2013Publication date: April 3, 2014Applicant: Applied Materials, Inc.Inventors: Sum-Yee Betty TANG, Martin SEAMONS
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Patent number: 8614360Abstract: The invention relates to new processes for preparation of 18F-fluoroalkyl halides suitable for use in labelling of Positron Emission Tomography (PET) radiotracers. The process of preparation comprises the step of reacting a 18F-fluoroacylhalide with Wilkinson's catalyst.Type: GrantFiled: December 8, 2006Date of Patent: December 24, 2013Assignee: Hammersmith Imanet LimitedInventor: Erik Arstad
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Publication number: 20130234060Abstract: Compositions including a polar heat transfer fluid that was passed through a vessel containing a catalyst are disclosed. Preferred catalysts can comprise copper, polyamide, stainless steel, or a combination thereof. Compositions can also comprise one or more types of long chain fatty acids, preferably from food oils, and preferably fatty acids that have been activated by virtue of having been passed through a vessel comprising a catalyst.Type: ApplicationFiled: February 22, 2013Publication date: September 12, 2013Inventor: Bob Lee Davis
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Patent number: 8530709Abstract: The present invention provides a method for the preparation of suitable chlorofluorocarbon and hydrochlorofluorocarbon materials or chlorofluorocarbon and hydrochlorofluorocarbon alkene and alkyne intermediates which serve as useful feedstock for fluorination and reduction to cis-1,1,1,4,4,4-hexafluoro-2-butene. Also presented is a continuous process for the production of cis-1,1,1,4,4,4-hexafluoro-2-butene from the alkene and alkyne intermediates.Type: GrantFiled: May 19, 2011Date of Patent: September 10, 2013Assignee: Honeywell International Inc.Inventors: Andrew Joseph Poss, David Nalewajek, Michael Van Der Puy, Haridasan K. Nair
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Patent number: 8481774Abstract: Provided is a method for producing a tetrafluoro nitrogen-containing heterocyclic compound such as tetrafluoropyrrolidine in good yield and at low cost. The method comprises the steps of: (A) reacting a compound represented by the formula (I) with fluorine gas to produce a tetrafluoro compound represented by the formula (II), (B) converting the tetrafluoro derivative represented by the formula (II) to a compound represented by the formula (III), and (C) reacting the compound represented by the formula (III) with an amine compound represented by the formula NH2R9 to produce a tetrafluoro nitrogen-containing heterocyclic compound represented by the formula (IV) or salt thereof.Type: GrantFiled: October 2, 2009Date of Patent: July 9, 2013Assignee: Nippon Soda Co., Ltd.Inventor: Yasuhiro Miyashita
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Publication number: 20130104575Abstract: A method for producing heating in a high temperature heat pump is provided comprising condensing a vapor working fluid comprising HFC-245eb and optionally Z—HFO-1336mzz, in a condenser, thereby producing a liquid working fluid. Also a method of raising the maximum feasible condenser operating temperature in a high temperature heat pump apparatus is provided. The method comprises charging the high temperature heat pump with a working fluid comprising HFC-245eb and optionally Z—HFO-1336mzz. Also a high temperature heat pump apparatus is provided containing a working fluid comprising HFC-245eb and optionally Z—HFO-1336mzz. Also a composition is provided comprising: (i) a working fluid consisting essentially of HFC-245eb and optionally Z—HFO-1336mzz; and (ii) a stabilizer to prevent degradation at temperatures of 55° C. or above, (iii) a lubricant suitable for use at 55° C. or above, or both (ii) and (iii).Type: ApplicationFiled: November 1, 2012Publication date: May 2, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventor: E I DU PONT DE NEMOURS AND COM
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Publication number: 20130104573Abstract: A method is provided for producing cooling in a chiller having an evaporator wherein a refrigerant composition is evaporated to cool a heat transfer medium. The method comprises evaporating a refrigerant composition comprising HFC-245eb and optionally Z—HFO-1336mzz in the evaporator. Additionally, a composition is provided comprising: (1) a refrigerant composition consisting essentially of HFC-245eb and Z—HFO-1336mzz; (2) a lubricant suitable for use in a chiller; wherein the Z—HFO-1336mzz in the refrigerant composition is at least about 41 weight percent. Also, a chiller apparatus is provided comprising an evaporator, a compressor, a condenser and a pressure reduction device, all of which are in fluid communication in the order listed and through which a refrigerant flows from one component to the next in a repeating cycle.Type: ApplicationFiled: November 1, 2012Publication date: May 2, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventor: E I Du Pont De Nemours and Company
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Patent number: 8426657Abstract: The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity, or energy efficiency of a refrigeration, air conditioning or heat transfer system.Type: GrantFiled: September 23, 2011Date of Patent: April 23, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Thomas J. Leck, Thomas Frank Saturno, Gregory A. Bell
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Patent number: 8415515Abstract: A process for the production of dichlorotrifluoroethane is described. The process comprises reacting perchloroethylene with hydrogen fluoride (HF) at elevated temperature in the vapour phase in at least one reactor in the presence of a fluorination catalyst. The process is operated so that 30 weight % or more of the perchloroethylene reactant that is fed to the at least one reactor remains unreacted having passed through the or each reactor. The dichlorotrifluoroethane may be purified and then used as it is or used to prepare pentafluoroethane.Type: GrantFiled: September 23, 2011Date of Patent: April 9, 2013Assignee: Mexichem Amanco Holding S.A. de C.V.Inventors: Clive R Giddis, Paul H Stewert
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Patent number: 8398882Abstract: A process is disclosed for making CF3CF2CH3, CF3CF?CH2 and/or CF3CCl?CH2. The process involves reacting at least one starting material selected from the group consisting of halopropanes of the formula CX3CHClCH2X, halopropenes of the formula CClX2CCl?CH2 and halopropenes of the formula CX2?CClCH2X, wherein each X is independently F or Cl, with HF in a reaction zone to produce a product mixture comprising HF, HCl, CF3CF2CH3, CF3CF?CH2 and CF3CCl?CH2; and recovering the CF3CF2CH3, CF3CF?CH2 and/or CF3CCl?CH2 from the product mixture.Type: GrantFiled: October 31, 2007Date of Patent: March 19, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert
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Publication number: 20130048913Abstract: The invention is to provide a new liquid crystal compound having a high clearing point, a good compatibility with other compounds, a small viscosity, and a high stability to heat, light and so forth; compound (1) is provided: R1?CF2?nR2??(1) wherein, for example, R1 is alkyl having 4 to 10 carbons or —(CH2)2—CH?CH2, R2 is alkyl having 2 to 10 carbons, n is 8, and R1 and R2 are not allowed to be straight-chain alkyl having an identical number of carbons.Type: ApplicationFiled: August 23, 2012Publication date: February 28, 2013Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATIONInventors: Hiroyuki TANAKA, Sayaka FUJIMORI
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Patent number: 8361215Abstract: Disclosed is an emulsifier comprising, as an active ingredient, a polyfluoroalkylphosphonic acid salt represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cP(O)(OM1)(OM2), wherein M? is a hydrogen atom, an alkali metal, an ammonium base, or an organic amine base, M2 is an alkali metal, an ammonium base, or an organic amine base, n is an integer of 1 to 6, a is an integer of 1 to 4, b is an integer of 1 to 3, and c is an integer of 1 to 3. An aqueous solution or organic solvent solution of the emulsifier can be effectively used to emulsify a perfluoropolyether oil or a perfluorocarbon compound. The resulting emulsion exhibits excellent emulsification stability, and thus can be effectively used as a mold-releasing agent.Type: GrantFiled: October 7, 2010Date of Patent: January 29, 2013Assignee: Unimatec Co., Ltd.Inventors: Yoshiyama Kaneumi, Seiichiro Murata, Katsuyuki Sato
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Patent number: 8329057Abstract: A method for operating a latent heat transport apparatus by providing a working liquid for a latent heat transport apparatus, which includes a compound of the formula C6F13C2H5 at an operation temperature of from ?50 to 200° C.Type: GrantFiled: September 19, 2008Date of Patent: December 11, 2012Assignee: Asahi Glass Company, LimitedInventor: Masato Fukushima
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Patent number: 8299309Abstract: Described herein is a process for the manufacture of hydrofluoroalkanols of the structure RfCFClCHROH. Also described herein are methods of manufacturing hydrofluoroalkenes of the structure RfCF?CHR from halofluorocarbons of the structure RfCFX2. In particular, 2,3,3,3,-tetrafluoro-1-propene may be manufactured with this process. Also described are compounds of the formula RfCFClCHROC(?O)R?.Type: GrantFiled: October 11, 2011Date of Patent: October 30, 2012Assignee: E I du Pont de Nemours and CompanyInventors: Mario Joseph Nappa, Xuehui Sun, Lev Moiseevich Yagupolskii, Andrey Anatolievich Filatov, Vladimir Nikolaevich Boiko, Yurii Lvovich Yagupolskii
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Patent number: 8273928Abstract: The present disclosure relates to a process for separating a fluoroolefin from a mixture comprising hydrogen fluoride and fluoroolefin, comprising azeotropic distillation both with and without an entrainer. In particular are disclosed processes for separating any of HFC-1225ye, HFC-1234ze, HFC-1234yf or HFC-1243zf from HF.Type: GrantFiled: August 24, 2007Date of Patent: September 25, 2012Assignee: E I Du Pont de Nemours and CompanyInventors: Jeffrey P. Knapp, Barry Asher Mahler, Donald J. Toton
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Patent number: 8258354Abstract: An improved process for producing perfluoroalkyl iodides of formula (I) F(CF2CF2)n—I??(I) wherein n is an integer from 2 to 3, wherein the improvement comprises contacting at least one perfluoroalkyl iodide of formula (II) and at least one perfluoroalkyl iodide of formula (III) F(CF2CF2)m—I??(II) F(CF2CF2)p—I??(III) wherein m is an integer greater than or equal to 3, and p is an integer equal to or lower than 2, at a) a molar ratio of formula (III) to formula (II) of from about 1:1 to about 6:1, b) a residence time of from about 1 to about 9 seconds, and c) a temperature of from about 450° C. to about 495° C.Type: GrantFiled: June 8, 2010Date of Patent: September 4, 2012Assignee: E. I. du Pont de Nemours and CompanyInventors: Stephen Ernest Jacobson, Sourav Kumar Sengupta, John Joseph Hagedorn, Liza Lopez
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Patent number: 8236193Abstract: A working medium for heat cycle has less impact on the environment and is excellent in heat cycle characteristics for a Rankine cycle system, a heat pump cycle system, and a refrigerating cycle system. The working medium has the formula CnF2n+1—CmH2m+1, wherein n is an integer of from 2 to 8, an m is an integer of from 0 to 3.Type: GrantFiled: August 13, 2009Date of Patent: August 7, 2012Assignee: Asahi Glass Company, LimitedInventor: Masato Fukushima
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Publication number: 20120165578Abstract: Disclosed are compositions comprising HFC-245eb and at least one additional compound selected from the group consisting of HFO-1234ze, HFC-245fa, HFC-236cb, HFC-236ea, HFC-236fa, HFC-227ea, HFC-227ca, HFO-1225yc, HFO-1225zc, HFO-1225ye, methane, ethane, propane, HFC-23, HFC-143a, HFC-134, HFC-134a, FC-1216, HFO-1234yf, HFC-254eb, HFO-1243zf, and HFC-254fb. Compositions comprising HFC-245eb are useful in processes to make HFO-1234yf. Also disclosed are compositions comprising HFO-1234yf and at least one additional compound selected from the group consisting of HFO-1234ze, HFC-254eb, HFC-254fb, HFO-1243zf, HFCHFC-245eb, HFC-245fa, HFC-245cb, HFC-236cb, HFC-236ea, HFC-236fa, HFC-227ea, HFC-227ca, HFO-1225yc, HFO-1225zc, HFO-1225ye, methane, ethane, propane, HFC-23, HFC-134, HFC-134a, HFO-1132a and FC-1216. Compositions comprising HFO-1234yf are useful as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.Type: ApplicationFiled: February 29, 2012Publication date: June 28, 2012Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Barry Asher MAHLER, Mario Joseph NAPPA, Jeffrey P. KNAPP
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Patent number: 8188323Abstract: The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity or energy efficiency of the refrigeration, air conditioning and heat transfer system.Type: GrantFiled: July 11, 2007Date of Patent: May 29, 2012Assignee: E.I. du Pont de Nemours and CompanyInventors: Thomas J. Leck, Thomas Frank Saturno, Gregory A. Bell
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Publication number: 20120077089Abstract: The present invention provides a positive electrode active material for a lithium primary cell. The positive electrode active material can reduce the internal resistance of the positive electrode of a lithium primary cell and can maintain the load characteristics and the discharge voltage not only at high temperatures but also at low temperatures. The positive electrode active material includes a fluoride of a low crystalline carbon.Type: ApplicationFiled: September 27, 2011Publication date: March 29, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hideo SAKATA, Meiten KOH, Hitomi NAKAZAWA, Tomoyo SANAGI
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Patent number: 8133407Abstract: Provided is a composition comprising (a) at least one halogenated compound selected from the group consisting of C3-C5 hydrofluoroolefin, CF3I, and combinations thereof, and (b) an effective stabilizing amount of a sesquiterpene selected from the group consisting of farnesol, farnesene, and mixtures thereof.Type: GrantFiled: May 15, 2009Date of Patent: March 13, 2012Assignee: Honeywell International Inc.Inventors: Gary Zyhowski, Rajiv Ratna Singh, Raymond H. Thomas, Mark W. Spatz, Roy P. Robinson, George J. Samuels, Gregory J. Shafer, Michael Van Der Puy, David P. Wilson, John L. Welch, Ronald P. Vogl, Samuel F. Yana Motta
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Patent number: 8129574Abstract: Disclosed is a process and apparatus for the catalytic hydrogenation of fluoroolefins to fluorocarbons where the reaction is carried out in a multi-tube shell and tube reactor. Reactions involving hydrogenation of fluoro-olefins are typically exothermic. In commercial processes where a fluoro-olefin C(n)H(2n?x)F(x) to C(n)H(2n?x+2)F(x) is hydrogenated (e.g. hexafluoropropylene to 236ea, 1225ye to 245eb, and the like), inadequate management or control of heat removal may induce excess hydrogenation, decomposition and hot spots resulting in reduced yields and potential safety issues. In the hydrogenation of fluoro-olefins, it is therefore necessary to control the reaction temperature as precisely as practical to overcome challenges associated with heat management and safety.Type: GrantFiled: August 31, 2009Date of Patent: March 6, 2012Assignee: Honeywell International Inc.Inventors: Haluk Kopkalli, Yuon Chiu, Orlando George Rodrigues, Gus Cerri, Hsueh Sung Tung, Stephen A. Cottrell
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Publication number: 20120043491Abstract: The invention relates to doping capsules which have a substance which displays a decreasing transparency with increasing temperature within a defined temperature range due to physicochemical interactions with the polymer matrix to be doped. Likewise, the invention relates to composite systems which have a polymer matrix doped with the doping capsules. The capsules according to the invention are used for sun protection or heat reflection.Type: ApplicationFiled: December 15, 2008Publication date: February 23, 2012Applicant: Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V.Inventors: Arno Seeboth, Olaf Mühling, Ralf Ruhmann
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Patent number: 8058488Abstract: Described herein is a process for the manufacture of hydrofluoroalkanols of the structure RfCFClCHROH, comprising reacting a halofluorocarbon of the structure RfCFX2, wherein each X is independently selected from Cl, Br, and I, with an aldehyde and a reactive metal in a reaction solvent to generate a reaction product comprising a metal hydrofluoroalkoxide, neutralizing said metal hydrofluoroalkoxide to produce a hydrofluoroalkanol, and recovering the hydrofluoroalkanol.Type: GrantFiled: November 20, 2008Date of Patent: November 15, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Mario Joseph Nappa, Xuehui Sun, Lev Moiseevich Yagupolskii, Andrey Anatolievich Filatov, Vladimir Nikolaevich Boiko, Yurii Lvovich Yagupolskii
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Patent number: 8058485Abstract: A process for the production of dichlorotrifluoroethane is described. The process comprises reacting perchloroethylene with hydrogen fluoride in the vapor phase at elevated temperature in at least one reactor in the presence of a fluorination catalyst to produce a composition comprising dichlorotrifluoroethane, hydrogen chloride, unreacted perchloroethylene and unreacted hydrogen fluoride. The composition that is produced is subjected to a separation step to recover a first fraction comprising dichlorotrifluoroethane and a second fraction comprising perchloroethylene and hydrogen fluoride. The second fraction is further separated into a hydrogen fluoride-rich fraction and a perchloroethylene-containing, organic-rich fraction which are then recycled. The dichlorotrifluoroethane that is recovered may be used to prepare pentafluoroethane.Type: GrantFiled: December 18, 2006Date of Patent: November 15, 2011Assignee: Mexichem Amanco S.A. de C.V.Inventors: Clive Robert Giddis, Paul Hendry Stewert
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Patent number: 8049046Abstract: The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity, or energy efficiency of a refrigeration, air conditioning or heat transfer system.Type: GrantFiled: June 9, 2010Date of Patent: November 1, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Thomas J. Leck, Thomas Frank Saturno, Gregory A. Bell
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Patent number: 8049045Abstract: A process for the production of dichlorotrifluoroethane is described. The process comprises reacting perchloroethylene with hydrogen fluoride (HP) at elevated temperature in the vapor phase in at least one reactor in the presence of a fluorination catalyst. The process is operated so that 30 weight % or more of the perchloroethylene reactant that is fed to the at least one reactor remains unreacted having passed through the or each reactor. The dichlorotrifluoroethane may be purified and then used as it is or used to prepare pentafluoroethane.Type: GrantFiled: December 18, 2006Date of Patent: November 1, 2011Assignee: Mexichem Amanco S.A. de C.V.Inventors: Clive Robert Giddis, Paul Hendry Stewert
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Patent number: 8044250Abstract: A process for producing hydrofluorocarbon compounds represented by the following formula: CF3CHFCHm+1Fn wherein m is 0 or 2; n is 0 or 2; and m+n=2. The process has the step of contacting, i.e., reacting, hydrogen with a precursor compound represented by the following formula: CF3CF?CHmFn wherein m is 0 or 2; n is 0 or 2; and m+n=2. The contact is carried out in the presence of a solid catalyst and in the presence or absence of an inert gas. The catalyst is selected from the group consisting of: Fe, Co, Ni, Cu, Cr, Ru, Rh, Ag, Re, Os, Ir, Pt, Au, Sn, and any combinations thereof. For the hydrogenation of 1234yf to 254eb, Pd can also be used as catalyst in addition to the other above-referenced metals. These metals are preferably supported on a carrier such as activated carbon.Type: GrantFiled: November 4, 2008Date of Patent: October 25, 2011Assignee: Honeywell International Inc.Inventors: Shuwu Yang, Hsueh Sung Tung
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Patent number: 7982072Abstract: Process for the obtention of HFC-227ea having a reduced content of organic impurities, comprising at least subjecting a crude HFC-227ea to two distillation steps at different pressures.Type: GrantFiled: December 10, 2010Date of Patent: July 19, 2011Assignee: Solvay S.A.Inventors: Thomas Müller, Dominique Balthasart, Bernd Kutzner
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Patent number: 7982074Abstract: The present invention relates to a process for preparing a co-precipitated Cr2O3/Al2O3 catalyst promoted by Zinc, said process comprising co-precipatation of chromium and aluminum metal hydroxides from corresponding trivalent metal salt solutions using NH4OH, NaOH or KOH as a base and followed by calcination to give mixed oxide precatalyst in amorphous from which is impregnated with an activity promoting amount of Zinc compound. The catalyst is used for the preparation of HFC-134a by fluorination of trichloroethylene and fluorination of intermediate of the former reaction (HCFC-133a).Type: GrantFiled: December 22, 2006Date of Patent: July 19, 2011Assignee: Council of Scientific & Industrial ResearchInventors: Jampani Madhusudana Rao, Shanthan Pamulaparthy Rao, Siva Attaluri Prasad, Banda Narasaiah, Narayan Sripathi Reddy, Radhakrishnan Kuppusamy, Vijayakumar Veeramachaneni, Patil Kamalakar Sukhadeorao, Rambabu Yadla, Koosampally Srinivas, Leelakrishna Kondaveti
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Publication number: 20110150777Abstract: A medical magnetic resonance tomography apparatus and a contrast agent for magnetic resonance tomography imaging of cavities in a patient are provided. The contrast agent is formed from a highly viscous magnetic resonance contrast agent. The highly viscous magnetic resonance contrast agent includes a substance. A specific magnetic resonance contrast can be generated by the substance.Type: ApplicationFiled: December 15, 2010Publication date: June 23, 2011Inventor: Sebastian Schmidt
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Publication number: 20110124541Abstract: There is disclosed a fluorinated nanodiamond having an oxygen-to-fluorine element ratio (O/F) of 0.06 to 0.20, a fluorinated nanodiamond dispersion in which the fluorinated nanodiamond is dispersed in an alcohol-containing dispersion medium, and a production method of the fluorinated nanodiamond dispersion.Type: ApplicationFiled: June 3, 2009Publication date: May 26, 2011Applicant: CENTRAL GLASS COMPANY, LIMITEDInventor: Akifumi Yao