Vaporization, Or Expansion, Refrigeration Or Heat Or Energy Exchange Patents (Class 252/67)
With lubricants, or warning, stabilizing or anti-corrosion agents or persistent gases (Class 252/68)
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Publication number: 20140048739Abstract: Provided are compositions, preferably azeotrope or azeotrope-like compositions comprised of 1,1,1,4,4,4-hexafluoro-2-butene and chlorotrifluoropropene, particularly 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), and uses thereof.Type: ApplicationFiled: November 25, 2010Publication date: February 20, 2014Applicant: Arkema FranceInventors: Wissam Rached, Laurent Abbas, Jean-Christophe Boutier
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Publication number: 20140048737Abstract: Provided are azeotrope-like compositions comprising heptafluoropropane and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agents, fire suppressant compositions, and aerosol propellants.Type: ApplicationFiled: October 28, 2013Publication date: February 20, 2014Applicant: Honeywell International Inc.Inventors: Rajiv Ratna Singh, Hang T. Pham, Robert G. Richard
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Patent number: 8652348Abstract: The present disclosure relates to refrigerants generally, and more specifically to nonflammable, non-ozone depleting mixtures of refrigerants that may be substituted for (HCFC R-22, R-407C, R-417A, R-502, R-402A, R-402B, R-404A, R-408A &R-507A) and usable in mineral oil systems. Among the most preferred embodiments of the present invention(s) are mixtures that are substitutes for these refrigerants, comprising about 35 to 65 weight percent R-125, and about 20 to 55 weight percent R-134a, and about 5 to 25 weight percent of R-143a and about 1 to 5 weight percent hydro component of (R-600 OR R-601) or combination, and about 2-10 weight percent of R-227ea the weight percentages of the components being weight percentages of the overall mixture.Type: GrantFiled: April 11, 2013Date of Patent: February 18, 2014Inventor: Ahmad M. Shihab
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Publication number: 20140034870Abstract: A process is disclosed for making CF3CF?CHF. The process involves reacting CF3CClFCCl2F with H2 in a reaction zone in the presence of a catalyst to produce a product mixture comprising CF3CF?CHF. The catalyst has a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina, fluorided alumina, aluminum fluoride and mixtures thereof and the mole ratio of H2 to CF3CClFCCl2F fed to the reaction zone is between about 1:1 and about 5:1. Also disclosed are azeotropic compositions of CF3CClFCCl2F and HF and azeotropic composition of CF3CHFCH2F and HF.Type: ApplicationFiled: October 10, 2013Publication date: February 6, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Velliyur Nott Mallikarjuna RAO, Mario Joseph NAPPA, Allen Capron SIEVERT
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Publication number: 20140024575Abstract: A composition based on 3,3,3-trifluoropropene and ammonia, and to the use thereof, especially as a heat transfer fluid. A heat-transfer composition including the composition based on 3,3,3-trifluoropropene and ammonia and also one or more additives chosen from lubricants, stabilizers, surfactants, tracers, fluorescers, odorant agents and solubilizers, and mixtures thereof. A process for heating or cooling a fluid or a body by means of a vapor compression circuit containing a heat-transfer fluid, said process successively including evaporation of the heat-transfer fluid, compression of the heat-transfer fluid, condensation of the heat fluid and depressurization of the heat-transfer fluid, in which the heat-transfer fluid is a composition based on 3,3,3-trifluoropropene and ammonia.Type: ApplicationFiled: March 9, 2012Publication date: January 23, 2014Applicant: ARKEMA FRANCEInventors: Wissam Rached, Jean-Christophe Boutier
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Publication number: 20140021399Abstract: A method for preparing a ternary or higher zeotropic refrigerant mixture comprising components of different volatilities is described. The method comprises: mixing together the less volatile components of the mixture in a pre-blending process; and separately adding the most volatile component to the pre-blended mixture by pressure or mass flow control so that the desired initial liquid composition is attained. The liquid zeotropic refrigerant mixture that is prepared may be transferred from a container in which it is held to another container or to a piece of equipment that is to use the refrigerant mixture.Type: ApplicationFiled: February 14, 2012Publication date: January 23, 2014Applicant: MEXICHEM AMANCO HOLDINGS S.A. DE C.V.Inventors: Robert E. Low, Stuart Corr
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Patent number: 8628681Abstract: A heat transfer composition comprising trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), carbon dioxide (R-744) and a third component selected from difluoromethane (R-32), 1,1-difluoroethane (R-152a), fluoroethane (R-161), 1,1,1,2-tetrafluoroethane (R-134a), propylene, propane and mixtures thereof.Type: GrantFiled: January 12, 2011Date of Patent: January 14, 2014Assignee: Mexichem Amanco Holding S.A. de C.V.Inventor: Robert E Low
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Publication number: 20140008565Abstract: A binary composition of 2,3,3,3-tetrafluoropropene and of ammonia, and also to the use thereof, in particular as a heat transfer fluid.Type: ApplicationFiled: September 11, 2013Publication date: January 9, 2014Applicant: ARKEMA FRANCEInventors: Wissam RACHED, Jean-Christophe Boutier
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Patent number: 8623808Abstract: 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 transfer fluid comprises from about 1 to about 40 percent, on a weight basis, of carbon dioxide (CO2) and from about 99 to about 60 percent, on a weight basis, of a compound having the Formula I XCFzR3-z (I), where X is a C2 or a C3 unsaturated, substituted or unsubstituted, alkyl radical, each R is independently Cl, F, Br, I or H, and z is 1 to 3. A preferred compound of Formula I is tetrafluoropropene, particularly 1,1,1,3-tetrafluoropropene and/or 1,1,1,3-tetrafluoropropene.Type: GrantFiled: August 5, 2011Date of Patent: January 7, 2014Assignee: Honeywell International Inc.Inventors: Rajiv R. Singh, Hang T. Pham, Ian Shankland
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Patent number: 8623233Abstract: Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of Z-1,1,1,4,4,4-hexafluoro-2-butene, trans-1,2-dichloroethylene and 1,1,1,3,3-pentafluorobutane. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as dielectrics.Type: GrantFiled: January 10, 2011Date of Patent: January 7, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Mark L. Robin, Joan Ellen Bartelt
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Patent number: 8618040Abstract: 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 foaming and blowing agent applications, articles and methods.Type: GrantFiled: July 7, 2011Date of Patent: December 31, 2013Assignee: Honeywell International Inc.Inventors: Robert C. Johnson, Hsueh Sung Tung, Rajiv Ratna Singh, Ian Shankland
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Publication number: 20130325732Abstract: A heat transfer composition comprising trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), difiuoromethane (R-32) and 1,1-difluoroethane (R-152a).Type: ApplicationFiled: July 19, 2013Publication date: December 5, 2013Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.Inventor: Robert E. Low
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Patent number: 8598107Abstract: Provided are azeotrope-like compositions comprising heptafluoropropane and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agents, fire suppressant compositions, and aerosol propellants.Type: GrantFiled: January 13, 2009Date of Patent: December 3, 2013Assignee: Honeywell International Inc.Inventors: Rajiv Ratna Singh, Hang T. Pham, Robert Gerard Richard
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Patent number: 8591761Abstract: An apparatus is provided that includes a device and a mechanism for heat transfer that includes a provided hydrofluoroether having high temperature stability. Also provided is a method of transferring heat and a composition that includes a provided hydrofluoroether.Type: GrantFiled: August 13, 2012Date of Patent: November 26, 2013Assignee: 3M Innovative Properties CompanyInventors: Richard M. Flynn, Michael G. Costello, Michael J. Bulinski
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Patent number: 8586798Abstract: The invention generally encompasses phosphonium ionic liquids and compositions and their use in many applications, including but not limited to: as electrolytes in electronic devices such as memory devices including static, permanent and dynamic random access memory, as battery electrolytes, as a heat transfer medium, fuel cells and electrochromatic devices, among other applications. In particular, the invention generally relates to phosphonium ionic liquids, compositions and molecules possessing structural features, wherein the molecules exhibit superior combination of thermodynamic stability, low volatility, wide liquidus range and ionic conductivity. The invention further encompasses methods of making such phosphonium ionic liquids, compositions and molecules, and operational devices and systems comprising the same.Type: GrantFiled: July 13, 2009Date of Patent: November 19, 2013Assignee: eSionic ES, Inc.Inventors: J. Adrian Hawkins, David A. Hudgins, Levi J. Irwin
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Patent number: 8580137Abstract: A trans-1,2-dichloroethylene blend which comprises a combination of a major amount of trans-1,2-dichloroethylene and a minor amount of a hydrohaloolefin having an elevated flash point is disclosed The combination exhibits a flash point significantly higher than trans-1,2-dichloroethylene alone The preferred hydrohaloolefin is 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) The subject blends find application as heat transfer agents, propellents and sprayable compositions, blowing agents, solvents and cleaning agents.Type: GrantFiled: January 13, 2010Date of Patent: November 12, 2013Assignee: Arkema Inc.Inventors: Benjamin Bin Chen, Philippe Bonnet
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Publication number: 20130292599Abstract: Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of (A) a compound of the formula CF3CX?CHRa where X is H or F and Ra is CF3CF2, CF3 or Cl, provided that (i) when X is F, Ra is Cl, (ii) when Ra is CF3CF2 or Cl, the compound of formula CF3CX?CHRa is the E configurational isomer, and (iii) when Ra is CF3, the compound of formula CF3CX?CHRa is the Z configurational isomer; and (B) a compound of the formula CF3Rb where Rb is CHFCH2F or CH?CHCF3, provided that when Rb is CH?CHCF3, X is F and the compound of formula CF3Rb is the Z configurational isomer. Also disclosed are processes for using such azeotropic or azeotrope-like compositions for preparing a thermoplastic or thermoset foam, for producing refrigeration, for producing an aerosol product and for extinguishing and suppressing a fire; and as blowing agents, solvents, heat transfer media and dielectrics.Type: ApplicationFiled: February 3, 2012Publication date: November 7, 2013Applicant: E.I. DuPont de Nemous and CompanyInventor: Mark L. Robin
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Patent number: 8574451Abstract: The present invention relates to refrigerant compositions containing trans-chloro-3,3,3-trifluoropropene (1233zd(E)) useful for chiller applications and processes using 1233zd(E).Type: GrantFiled: December 14, 2009Date of Patent: November 5, 2013Assignee: Honeywell International Inc.Inventors: Ryan Hulse, Rajiv Ratna Singh, Mark W. Spatz
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Publication number: 20130284138Abstract: A method for providing and consuming a storable and transportable, alcohol-containing cooling fluid comprising the following steps: providing a gas with carbon dioxide fraction as a carbon supplier; providing a hydrogen fraction; producing a gaseous starting material by mixing the carbon dioxide fraction and hydrogen fraction; passing of the starting material through a reactor with a catalyst to synthesize a cooling fluid mixture of alcohol and water; and using the cooling mixture for cooling intake air, and/or compressor air or/and a fuel-air mixture of an internal combustion engine by evaporating the cooling fluid.Type: ApplicationFiled: October 4, 2011Publication date: October 31, 2013Applicant: Silicon Fire AGInventor: Roland Meyer-Pittroff
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Patent number: 8562853Abstract: The present invention relates to the field of compression refrigeration and air conditioning. Specifically, the present invention relates to a tracer-containing compositions comprising refrigeration/heating fluid and tracer compound(s). Additionally, the present invention relates to a method for detecting tracer compounds to identify gases after leaving the custody of the original manufacturer or prior source, and the verification of authenticity. The aforementioned method provides for the detection of tracer compounds, which in turn, may alert the refrigeration industry to when dilution, adulteration, contamination or other unauthorized practices have occurred with refrigeration products.Type: GrantFiled: November 19, 2009Date of Patent: October 22, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Thomas J. Leck, Stuart C. Bricker, Allen Capron Sievert
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Publication number: 20130273365Abstract: A viscose fiber comprises a fiber body including a regenerated cellulosic material and a plurality of microcapsules dispersed in the regenerated cellulosic material. The regenerated cellulosic material is derived from an organic plant material and the plurality of microcapsules containing a phase change material has a transition temperature in the range of 0° C. to 100° C., the phase change material providing thermal regulation based on at least one of absorption and release of latent heat at the transition temperature.Type: ApplicationFiled: April 13, 2012Publication date: October 17, 2013Inventors: Mark H. Hartmann, James B. Worley, Matthew North
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Patent number: 8557135Abstract: The present invention relates to azeotrope and azeotrope-like compositions comprised of 2,3,3,3-tetrafluoropropene (HFO-1234yf) and ammonia, and uses thereof.Type: GrantFiled: July 8, 2011Date of Patent: October 15, 2013Assignee: Arkema FranceInventors: Wissam Rached, Jean-Christophe Boutier
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Patent number: 8557136Abstract: Provided are azeotrope or azeotrope-like compositions comprised of 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) and 1,1-dichloro-2,2,2-trifluoroethane (HCFC-123).Type: GrantFiled: August 13, 2009Date of Patent: October 15, 2013Assignee: Arkema Inc.Inventors: Brett L. Van Horn, Philippe Bonnet, Benjamin Bin Chen
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Patent number: 8551354Abstract: A refrigerant composition consists essentially of a combination of two hydro fluorocarbon components selected from R125 and R143a and an additive selected from a saturated or unsaturated hydrocarbon or mixture thereof boiling in the range ?50° C. and +40° C.Type: GrantFiled: March 5, 2007Date of Patent: October 8, 2013Assignee: RPL Holdings LimitedInventors: John Edward Poole, Richard Powell
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Publication number: 20130255284Abstract: The invention relates to a composition comprising (E)-1,1,1,4,4,4-hexafluorobat-2-ene as a mixture with at least one hydrocarbon, hydrofinorocarbon or fluoroolefin compound having a boiling point less than or equal to 42° C., and also to the use of this composition as a heat transfer fluid.Type: ApplicationFiled: November 8, 2011Publication date: October 3, 2013Applicant: Arkema FranceInventor: Wissam Rached
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Publication number: 20130247602Abstract: The invention relates to a composition including 1,1,1,4,4,4-hexafluorobut-2-ene and 3,3,4,4,4-pentafluorobut-1-ene, as well as to use thereof, in particular as a heat transfer fluid.Type: ApplicationFiled: November 8, 2011Publication date: September 26, 2013Inventors: Jean-Christophe Boutier, Wissam Rached
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Patent number: 8535555Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: GrantFiled: August 31, 2007Date of Patent: September 17, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Andrew Edward Feiring, Viacheslav A. Petrov, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C. Mouli, Thomas J. Leck, Jon Lee Howell
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Patent number: 8535556Abstract: The present invention relates to compositions comprising iodotrifluoromethane and an effective amount of at least one stabilizer selected from the group consisting of hindered phenols, thiophosphates, butylated triphenylphosphorothionates, organo phosphates, phosphites, aryl alkyl ethers, terpenes, terpenoids, epoxides, fluorinated epoxides, oxetanes, ascorbic acid, thiols, lactones, thioethers, amines, nitromethane, alkylsilanes, benzophenone derivatives, aryl sulfides, divinyl terephalic acid, diphenyl terephalic acid, ionic liquids, and mixtures thereof. These stabilized iodotrifluoromethane compositions may be useful as working fluids in multiple applications including cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps.Type: GrantFiled: March 26, 2007Date of Patent: September 17, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Thomas J. Leck, Nandini C. Mouli, Jon Lee Howell, Velliyur Nott Mallikarjuna Rao, Andrew Edward Feiring, Viacheslav A. Petrov, Allen Capron Sievert, Mario Joseph Nappa, Barbara Haviland Minor, Ekaterina N. Swearingen, Schmitz Corneille, Deepak Perti
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Publication number: 20130234059Abstract: Compositions comprising an activated oil blend are provided. Also provided are compositions comprising a halo-alkene complex can be used as a refrigerant. The compositions can increase the energy efficiency and reduces leakage rates of refrigeration systems. Some compositions comprise at least 0.1 wt % of an oleic oil fatty acid, 0.1 wt % of a linoleic oil fatty acid, and at least 98 wt % of r-134a. Some compositions comprise an oil blend comprising an oleic acid to linoleic acid ratio of approximately 60:1. At least some of the r-134a can be complexed with at least one of the organic oil fatty acids.Type: ApplicationFiled: December 31, 2012Publication date: September 12, 2013Inventor: Bob Lee Davis
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Publication number: 20130234062Abstract: The present invention provides a highly stable HFO refrigerant composition for use in a vapor compression-type refrigeration system, having improved slidability for the sliding portions of the vapor compression-type refrigeration system. More specifically, the present invention provides an HFO refrigerant composition comprising at least one type of HFO refrigerant and a polymer of halogenated propene represented by C3HaFbClc (provided that a+b+c=6, a=an integer of 1 to 3, b=an integer of 3 to 5, and c=an integer of 0 to 1) that is an oligomer having a molecular weight of 200 to 900.Type: ApplicationFiled: November 29, 2011Publication date: September 12, 2013Applicant: Daikin Industries, Ltd.Inventors: Tatsumi Tsuchiya, Takashi Shibanuma
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Patent number: 8524110Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.Type: GrantFiled: April 28, 2011Date of Patent: September 3, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
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Publication number: 20130219949Abstract: A working medium comprising at least one refrigerant, at least one monohydric aliphatic alcohol having from 6 to 10 carbon atoms and at least one ionic liquid composed of at least one organic cation and at least one anion shows an improved efficiency COP in an absorption heat pump compared to working media which do not contain an alcohol having from 6 to 10 carbon atoms.Type: ApplicationFiled: November 4, 2011Publication date: August 29, 2013Applicant: Evonik Degussa GmbHInventors: Matthias Seiler, Rolf Schneider, Olivier Zehnacker, Marc-Christoph Schneider
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Publication number: 20130221262Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.Type: ApplicationFiled: April 8, 2013Publication date: August 29, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventor: E I DU PONT DE NEMOURS AND COMPANY
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Patent number: 8518294Abstract: Compositions comprising CF3CClFCH2OH, CF3CClFCH2OZnCl, and CF3CClFCH2OC(?O)CH3 are useful in processes to make HFO-1234yf. Compositions comprising HFO-1234yf may comprise at least one additional compound selected from the group consisting of CFC-114a, HCFC-124, HFC-143a, CFO-1113, HFO-1123, HFO-1132a, tetrafluoroethene, HCFO-1122, 3,4,4,4-tetrafluoro-2-butanone, acetyl fluoride, 2-chloro-2,3,3,3-tetrafluoropropanol, 2-chloro-2,3,3,3-tetrafluoropropyl acetate, Zinc (2-chloro-2,3,3,3-tetrafluoropropoxy) chloride, 2-chloro-2,3,3,3-tetrafluoropropoxy methyl acetate, 1,3-bistrifluoromethyl-1,3-difluorocyclobutane, 2,3,3,3-tetrafluoropropyl acetate, dimethylformamide, pyridine, ethyl acetate, acetic acid, diethyl ether, acetic anhydride, methyl acetate, dimethylacetamide, methanol, ethanol, methyl formate, pyrazine, pyrimidine, N-methylpyrrolidine, N-methylpiperidine, hexamethylphosphoramide, tetrahydrofuran, 1,4-dioxane, N-methylpyrrolidinone, dimethyl sulfoxide, acetonitrile, benzonitrile, and mixtures thereof.Type: GrantFiled: February 27, 2012Date of Patent: August 27, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Mario Joseph Nappa, Xuehui Sun
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Patent number: 8518293Abstract: The present invention pertains to azeotropic and azeotrope-like compositions of the following three blends: 1. Trans-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)), cis-1,3,3,3-tetrafluoropropene (HFO-1234ze(Z)) and hydrogen fluoride (HF); 2. HFO-1234ze(E), 1,1,1,3,3-pentafluoropropane (HFC-245fa) and HF; and 3. HFO-1234ze(Z), HFC-245fa and HF. These azeotropic and azeotrope-like compositions are useful as intermediates in the production of HFO-1234ze(E).Type: GrantFiled: September 3, 2010Date of Patent: August 27, 2013Assignee: Honeywell International Inc.Inventors: Ryan Hulse, Hang T. Pham, Rajiv Ratna Singh, Daniel C Merkel, Konstantin A. Pokrovski, Hsueh Sung Tung
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Patent number: 8512592Abstract: Provided herein are dielectric fluids comprising at least one estolide compound of formula: in which n is an integer equal to or greater than 0; m is an integer equal to or greater than 1; R1, independently for each occurrence, is selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; R2 is selected from hydrogen and optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; and R3 and R4, independently for each occurrence, are selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched. Also provided herein are uses of dielectric fluids and electrical devices such as transformers that comprise a dielectric fluid comprising at least one estolide compound.Type: GrantFiled: July 19, 2012Date of Patent: August 20, 2013Assignee: Biosynthetic Technologies, LLCInventors: Jeremy Forest, Jakob Bredsguard, Travis Thompson
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Patent number: 8512591Abstract: A heat transfer composition comprising trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), difluoromethane (R-32) and 1,1-difluoroethane (R-152a).Type: GrantFiled: January 12, 2011Date of Patent: August 20, 2013Assignee: Mexichem Amanco Holding S.A. de C.V.Inventor: Robert E Low
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Publication number: 20130207021Abstract: A composition of a zeotropic mixture has a first chemical constituent and at least one second, different chemical constituent. The zeoptropic mixture has a temperature glide of 5° C.-25° C. with regard to its saturated vapor temperature and its saturated liquid temperature. The first chemical constituent is selected from 1,1,1,3,3-pentafluoropropane, 1,1,2,2,3-pentafluoropropane, 1,1,1,3,3-pentafluorobutane, methyl perfluoropropyl ether, 1,1,1,2,3,3-hexafluoropropane and 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone.Type: ApplicationFiled: February 14, 2012Publication date: August 15, 2013Inventors: Ahmad M. Mahmoud, Jaeseon Lee, Dong Luo
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Patent number: 8506839Abstract: This invention relates to a composition comprising water and at least one ionic liquid, and also to devices capable of executing an absorption cycle using such compositions as a refrigerant pair. This invention also provides a method of cooling using an absorption cycle comprising water as the refrigerant and at least one ionic liquid as the absorbent. The present invention also provides a method of heating using an absorption cycle comprising water as the refrigerant and at least one ionic liquid.Type: GrantFiled: December 12, 2006Date of Patent: August 13, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Mark Brandon Shiflett, Akimichi Yokozeki
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Publication number: 20130193369Abstract: The invention provides a heat transfer composition comprising: (i) trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)); (ii) a second component selected from difluoromethane (R-32), propene (R-1270)propane (R290) and mixtures thereof; (iii) a third component selected from pentafluoroethane (R-125), 1,1,1,2-tetrafluoroethane (R-134a), and mixtures thereof; and optionally (iv) a fourth component selected from fluoroethane (R-161), 1,1-difluoroethane (R-152a) and mixtures thereof.Type: ApplicationFiled: June 24, 2011Publication date: August 1, 2013Applicant: Mexichem Amanco Holding C.V. de S.A.Inventor: Robert Elliott Low
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Publication number: 20130193368Abstract: The invention provides a heat transfer composition comprising trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), fluoroethane (R-161) and a third component selected from difluoromethane (R-32) and/or 1,1-difluoroethane (R-152a).Type: ApplicationFiled: February 15, 2011Publication date: August 1, 2013Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.Inventor: Robert E. Low
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Patent number: 8496845Abstract: The present invention provides a refrigerant composition that is nonflammable, and ensures low LCCP and less burden on the environment. More specifically, the present invention relates a refrigerant composition containing difluoromethane (HFC32), pentafluoroethane (HFC125), and 2,3,3,3-tetrafluoropropene (HFO1234yf), the ratio of HFC32/HFC125/HFO1234yf being in a range surrounded by points (0/21/79 mass %), (16.6/25.3/58.1 mass %), and (0/28.4/71.6 mass %) in a ternary diagram of a refrigerant composition containing HFC32, HFC125, and HFO1234yf, and the composition essentially containing HFC32.Type: GrantFiled: June 30, 2009Date of Patent: July 30, 2013Assignee: Daikin Industries, Ltd.Inventors: Tatsumi Tsuchiya, Katsuki Fujiwara, Masahiro Noguchi, Yasufu Yamada
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Patent number: 8497401Abstract: The invention is directed to a ternary azeotrope-like mixture consisting essentially of effective amounts of 1,1,1,3,3-pentafluoropropane, 1-chloro-3,3,3-trifluoropropene, and hydrogen fluoride.Type: GrantFiled: November 7, 2011Date of Patent: July 30, 2013Assignee: Honeywell International Inc.Inventors: Ryan Hulse, Rajiv Ratna Singh, Hsueh Sung Tung, Ian Shankland
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Patent number: 8496846Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be at least one phenol or a mixture of at least one phenol with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: GrantFiled: November 4, 2011Date of Patent: July 30, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Velliyur Nott Mallikarjuna Rao, Mario Joseph Nappa, Barbara Haviland Minor, Thomas J. Leck, Nandini C. Mouli
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Publication number: 20130186115Abstract: Heat transfer compositions and methods including (a) HFC-32; (b) HFO-1234ze; and (c) either or both of HFC-152a and/or HFC-134a.Type: ApplicationFiled: March 12, 2013Publication date: July 25, 2013Applicant: HONEYWELL INTERNATIONAL INC.Inventor: HONEYWELL INTERNATIONAL INC.
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Publication number: 20130187078Abstract: The invention provides a heat transfer composition consisting essentially of from about 60 to about 85% by weight of trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)) and from about 15 to about 40% by weight of fluoroethane (R-161). The invention also provides a heat transfer composition comprising R-1234ze(E), R-161 and 1,1,1,2-tetrafluoroethane (R-134a).Type: ApplicationFiled: February 14, 2011Publication date: July 25, 2013Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.Inventor: Robert E. Low
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Patent number: 8492327Abstract: 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.Type: GrantFiled: April 23, 2012Date of Patent: July 23, 2013Assignee: Honeywell International Inc.Inventors: Rajiv R. Singh, Hang T. Pham, David P. Wilson
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Patent number: 8490416Abstract: The invention relates to a method of cooling a metal strip traveling through a cooling section in a continuous heat treatment line. In accordance with the invention, the method consists in projecting a refrigerant medium into the cooling section (4) onto the surface of the strip (1) to be cooled, the medium being constituted for the most part by a phase-change substance that passes into the gaseous phase at a temperature that is lower than the temperature of the strip (1) and without oxidizing said strip so that energy is exchanged within an endothermic process by a change in the phase of said phase-change substance.Type: GrantFiled: May 1, 2009Date of Patent: July 23, 2013Assignee: CMI SAInventors: Maroun Nemer, Maria Zoghaib, Denis Clodic, Diala Abdo, Stéphane Langevin, Patrick Dubois
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Patent number: 8486295Abstract: Disclosed are methods of transferring heat comprising providing a device, using a heat-transfer fluid to transfer heat to or from the device, wherein the heat-transfer fluid compositions comprise at least one unsaturated fluoroether having the formula CF3(CF2)xCF?CFCF(OR)(CF2)yCF3, CF3(CF2)xC(OR)?CFCF2(CF2)yCF3, CF3CF?CFCF(OR)(CF2)x(CF2)yCF3, CF3(CF2)xCF?C(OR)CF2(CF2)yCF3, or mixtures thereof, wherein R can be either CH3, C2H5 or mixtures thereof, and wherein x and y are independently 0, 1, 2 or 3, and wherein x+y=0, 1, 2 or 3.Type: GrantFiled: June 28, 2011Date of Patent: July 16, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Joan Ellen Bartelt, Robert D. Lousenberg
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Patent number: 8486293Abstract: Described is a process for separating 1,1,1,2-tetrafluoropropane and hydrogen fluoride from a mixture comprising 1,1,1,2-tetrafluoropropane, 1,1,1,2,3-pentafluoropropane and hydrogen fluoride comprising: subjecting said 1,1,1,2-tetrafluoropropane, 1,1,1,2,3-pentafluoropropane and hydrogen fluoride mixture to a distillation step, forming a column distillate composition comprising an azeotropic or near-azeotropic composition of said 1,1,1,2-tetrafluoropropane and hydrogen fluoride, and a bottoms composition of 1,1,1,2,3-pentafluoropropane. The column distillate may optionally be made essentially free of 1,1,1,2,3-pentafluoropropane and the column bottoms composition may optionally be made essentially free of HF. Also described is a process for separating 1,1,1,2-tetrafluoropropane and hydrogen fluoride from a mixture of 1,1,1,2-tetrafluoropropane and hydrogen fluoride. Also described are azeotropic and azeotrope-like compositions comprising 1,1,1,2-tetrafluoropropane and hydrogen fluoride.Type: GrantFiled: October 6, 2010Date of Patent: July 16, 2013Assignee: E I du Pont de Nemours and CompanyInventor: Jeffrey P. Knapp