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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Patent number: 8070977Abstract: The present invention relates to compositions containing hydrofluoroolefins and to the uses thereof as heat transfer fluids, blowing agents, solvents and aerosols. More particularly, the invention relates to compositions having: 5 to 65% by weight, preferably from 5 to 15% by weight, of 2,3,3,3-tetrafluoropropene, 5 to 70% by weight, preferably 40 to 60% by weight, of HFC-134a and 25 to 42% by weight of HFC-32.Type: GrantFiled: May 14, 2009Date of Patent: December 6, 2011Assignee: Arkema FranceInventor: Wissam Rached
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Patent number: 8070976Abstract: The present invention relates to fluoroolefin compositions. The fluoroolefin compositions of the present invention are useful as refrigerants or heat transfer fluids and in processes for producing cooling or heat. Additionally, the fluoroolefin compositions of the present invention may be used to replace currently used refrigerant or heat transfer fluid compositions that have higher global warming potential.Type: GrantFiled: January 29, 2010Date of Patent: December 6, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Mario Joseph Nappa, Barbara Haviland Minor
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Patent number: 8071816Abstract: The present disclosure provides a compound according to the formula: Rf1[CH(—O—CH(3-m)Rf2m)(—O—CF2—CFH—Rf3)]n ??[I] wherein n is 1 or 2, wherein m is 1, 2 or 3, wherein, when n is 1, Rf1 is selected from the group consisting of highly fluorinated alkyl groups which are linear, branched, cyclic, or a combination thereof, which may optionally be substituted, and which may optionally contain one or more catenated heteroatoms; wherein, when n is 2, Rf1 is selected from the group consisting of highly fluorinated alkylene groups which are linear, branched, cyclic, or a combination thereof, which may optionally be substituted, and which may optionally contain one or more catenated heteroatoms; wherein each Rf2 is independently selected from the group consisting of alkyl groups which are linear, branched, cyclic, or a combination thereof, which may optionally be substituted, and which may optionally contain one or more catenated heteroatoms; wherein at least one Rf2 is highly fluorinated; wherein each Rf3 is indepeType: GrantFiled: June 30, 2008Date of Patent: December 6, 2011Assignee: 3M Innovative Properties CompanyInventors: Richard M. Flynn, Michael G. Costello
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Publication number: 20110289748Abstract: 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: ApplicationFiled: August 5, 2011Publication date: December 1, 2011Applicant: HONEYWELL INTERNATIONAL INC.Inventors: RAJIV R. SINGH, HANG T. PHAM, IAN SHANKLAND
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Patent number: 8065882Abstract: Disclosed are the use of fluorine substituted olefins, including tetra- and penta-fluoropropenes, in a variety of applications, including connection with blowing agents, foams, foamable compositions, foaming methods, heat transfer compositions and methods, propellants, and solvating methods.Type: GrantFiled: March 26, 2009Date of Patent: November 29, 2011Assignee: Honeywell International Inc.Inventors: Rajiv R. Singh, Hang T. Pham, Ian Shankland, Raynond H. Thomas, David P. Wilson
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Patent number: 8066899Abstract: The present disclosure relates to non-ignitable gaseous compositions comprising difluoromethane and tetrafluoroethylene. When the pressure is at least 150 psig, the molar percentage of tetrafluoroethylene in the non-ignitable gaseous composition is no more than 111.6?0.124X. When the pressure is less than 150 psig, the molar percentage of tetrafluoroethylene in the non-ignitable gaseous composition is no more than 102?0.06X. X is the pressure in the unit of psig. The present disclosure also provides processes for making such non-ignitable gaseous compositions. Also disclosed are azeotropic compositions of TFE and HFC-32.Type: GrantFiled: September 4, 2007Date of Patent: November 29, 2011Assignee: E.I. du Pont de Nemours and CompanyInventor: Barry Asher Mahler
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Patent number: 8066901Abstract: Provided are azeotropic and azeotrope-like compositions of trans-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzz(E)) and water. Such azeotropic and azeotrope-like compositions are useful in isolating HFO-1336mzz(E) from impurities during production. Azeotropes of the instant invention are similarly useful in final compositions, such as blowing agent, propellants, refrigerants, diluents for gaseous sterilization and the like.Type: GrantFiled: January 19, 2011Date of Patent: November 29, 2011Assignee: Honeywell International Inc.Inventors: Ryan Hulse, Hang T. Pham, Rajiv Ratna Singh
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Patent number: 8066900Abstract: Azeotrope-like compositions comprising 1-bromopropane and 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, and uses thereof, are described.Type: GrantFiled: December 2, 2008Date of Patent: November 29, 2011Assignee: 3M Innovative Properties CompanyInventor: John G. Owens
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Publication number: 20110284181Abstract: The present invention relates to a composition 2,3,3,3-tetrafluoropropene, 1,1,1,2-tetrafluoroethane and at least one compound selected from propane, propylene and ethylene, which can be used for refrigeration, air-conditioning and heating. The invention also relates to a method for heating and/or air-conditioning the passenger compartment of an automobile using a reversible cooling loop in which a refrigerant fluid including said composition flows. The method is particularly suitable for when the outdoor temperature is lower than ?20° C. The method is also suitable for use in hybrid vehicles adapted for alternately operating by means of a thermal engine and an electric motor, as well as for electric vehicles.Type: ApplicationFiled: February 8, 2010Publication date: November 24, 2011Applicant: ARKEMA FRANCEInventor: Wissam Rached
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Publication number: 20110275724Abstract: Provided are azeotropic and azeotrope-like compositions of 1,2,3,3,3-pentafluoropropene (HFO-1225ye) and water. Such azeotropic and azeotrope-like compositions are useful in isolating 1,2,3,3,3-pentafluoropropene from impurities during production. Azeotropes of the instant invention are similarly useful in final compositions or manufacturing final compositions, such as blowing agent, propellants, refrigerants, diluents for gaseous sterilization and the like.Type: ApplicationFiled: April 8, 2011Publication date: November 10, 2011Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Ryan Hulse, Haluk Kopkalli, Hang T. Pham
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Patent number: 8053404Abstract: 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: September 11, 2009Date of Patent: November 8, 2011Assignee: Honeywell International Inc.Inventors: Rajiv R. Singh, Hang T. Pham, Ian Shankland
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AZEOTROPE-LIKE COMPOSITIONS OF E-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE AND 1-CHLORO-3,3,3-TRIFLUOROPROPENE
Publication number: 20110260093Abstract: Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of E-1,1,1,4,4,4-hexafluoro-2-butene with E-1-chloro-3,3,3-trifluoropropene or 2-chloro-3,3,3-trifluoropropene. 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.Type: ApplicationFiled: April 20, 2011Publication date: October 27, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventor: MARK L. ROBIN -
Publication number: 20110260095Abstract: The invention provides a heat transfer composition comprising R-1243zf, R-32 (difluoromethane) and R-161 (fluoroethane).Type: ApplicationFiled: December 2, 2009Publication date: October 27, 2011Applicant: MEXICHEM AMANCO HOLDINGS S.A. DE C.V.Inventor: Robert Elliott Low
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Publication number: 20110259022Abstract: 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: ApplicationFiled: August 31, 2007Publication date: October 27, 2011Inventors: 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: 8043523Abstract: The present invention provides a refrigerator oil composition which satisfies both sludge dispersibility and prevention of wear and seizing of sliding parts made of aluminum and/or iron, and a compressor and a refrigeration apparatus using the refrigerator oil composition. The refrigerator oil composition is characterized by comprising a base oil which is at least one member selected from mineral oils and synthetic oils, and at least one polyamide compound having two or more amide groups in the molecule and being present in an amount of 0.01 to 5% by mass based on the total amount of the refrigerator oil composition.Type: GrantFiled: December 19, 2006Date of Patent: October 25, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventor: Masato Kaneko
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Patent number: 8044015Abstract: Disclosed are compositions and systems having utility in numerous situations, including in particular solvent cleaning systems, as well as refrigerant lubricants and/or compatibilizing agents, and to methods which utilize such compositions and systems. More particularly, the present invention in preferred aspects is directed to solvents, blowing agents, heat transfer fluids and compatibilizing agents comprising the compound 3-chloro-1,1,1,6,6,6-hexafluoro-2,4-hexadiene.Type: GrantFiled: March 12, 2010Date of Patent: October 25, 2011Assignee: Honeywell International Inc.Inventors: Robert C. Johnson, Hsueh Sung Tung
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Patent number: 8044010Abstract: The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.Type: GrantFiled: March 10, 2011Date of Patent: October 25, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Melodie A. Schweitzer
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Publication number: 20110258146Abstract: The invention provides a heat transfer composition comprising a minimum of about 80% by weight of R-1243zf and a maximum of 20% by weight of R-32, based on the total weight of the composition.Type: ApplicationFiled: December 2, 2009Publication date: October 20, 2011Applicant: MEXICHEM AMANCO HOLDINGS S.A. DE C.V.Inventor: Robert Elliott Low
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Publication number: 20110252801Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises Z-1,2-difluoroethylene (Z-HFO-1132a). 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 power cycle working fluids.Type: ApplicationFiled: April 14, 2011Publication date: October 20, 2011Applicant: E.I. DU PONT NEMOURS AND COMPANYInventors: BARBARA HAVILAND MINOR, ROBERT L. WATERLAND
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Publication number: 20110258147Abstract: The invention provides a heat transfer composition comprising: (ii) R-1243zf; (iii) a second component selected from R-32 (difluoromethane), R-744 (CO)2, R-41 (fluoromethane), R-1270 (propene), R-290 (propane), R-161 (fluoroethane) and mixtures thereof; and (iv) a third component selected from R-134a (1,1,1,2-tetrafluoroethane), R-125 (pentafluoroethane), R-1234yf (2,3,3,3-tetrafluoroprop-1-ene) and mixtures thereof.Type: ApplicationFiled: December 2, 2009Publication date: October 20, 2011Applicant: MEXICHEM AMANCO HOLDINGS S.A. DE C.V.Inventor: Robert Elliott Low
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Publication number: 20110253927Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises E-1,2-difluoroethylene. 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 power cycle working fluids.Type: ApplicationFiled: April 14, 2011Publication date: October 20, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: BARBARA HAVILAND MINOR, Robert L. Waterland
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Patent number: 8034251Abstract: Provided are ternary azeotropic and azeotrope-like compositions of 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb), and hydrogen fluoride (HF). Such azeotropic and azeotrope-like compositions are useful as intermediates in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf).Type: GrantFiled: March 18, 2009Date of Patent: October 11, 2011Assignee: Honeywell International Inc.Inventors: Daniel C. Merkel, Konstantin A. Pokrovski, Hsuehsung Tung, Hang T. Pham, Rajiv R. Singh
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Patent number: 8033120Abstract: 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 as fire extinguishing and suppressing agents.Type: GrantFiled: April 20, 2009Date of Patent: October 11, 2011Assignee: Honeywell International Inc.Inventors: Rajiv R. Singh, Hang T. Pham, David P. Wilson, Raymond H. Thomas, Ian Shankland
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Publication number: 20110245350Abstract: A process is disclosed for making CF3CF?CH2 or mixtures thereof with CHF?CFCHF2. The process involves contacting CCl3CF2CF3 and optionally CCl2FCF2CClF2 with H2 in the presence of a catalyst including a catalytically effective amount of palladium supported on a support of alumina, fluorided alumina and/or aluminum fluoride, to produce a product mixture including CH2?CFCF3 (and when CCl2FCF2CClF2 is present, CHF?CFCHF2); recovering CH2?CFCF3 or a mixture thereof with CHF?CFCHF2 from the product mixture; and optionally, separating at least a portion of any CHF?CFCHF2 in the product mixture from the CH2?CFCF3 in the product mixture. The mole ratio of H2 to the total of CCl3CF2CF3 and CCl2FCF2CClF2 fed to the reaction zone is between about 1:1 and about 5:1.Type: ApplicationFiled: June 9, 2011Publication date: October 6, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: MARIO JOSEPH NAPPA, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert
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Publication number: 20110240903Abstract: 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 with methyl formate, pentane, 2-methylbutane, 1,1,1,3,3-pentafluorobutane, trans-1,2-dichloroethylene, 1,1,1,3,3-pentafluoropropane, dimethoxymethane, or cyclopentane. 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.Type: ApplicationFiled: May 24, 2011Publication date: October 6, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: MARK L. ROBIN
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Publication number: 20110240902Abstract: Provided are azeotropic and azeotrope-like compositions of 2,3-dichloro-3,3-difluoropropene (HCFO-1232xf) and hydrogen fluoride (HF).Type: ApplicationFiled: March 30, 2010Publication date: October 6, 2011Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Daniel C. Merkel, Hang T. Pham, Ryan Hulse, Rajiv R. Singh, Konstantin A. Pokrovski, Hsueh S. Tung
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Patent number: 8029691Abstract: A refrigerant that is azeotropic or near-azeotropic comprises a binary blend of R744 and R41. In one embodiment the binary blend has a molar composition of 20 to 60 percent R744, the remainder being R41.Type: GrantFiled: December 14, 2010Date of Patent: October 4, 2011Inventors: Nicholas Cox, Victor Mazur, Daniel Colbourne, Andrew Stevenson
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Patent number: 8029694Abstract: A thermally conductive polymer composition comprising liquid crystalline polymer; metal alloy having a melting point of between about 200° C. and about 500° C.; and thermally conductive filler other than the metal alloy. The composition has a volume resistivity of at least about 1×1013 ?·cm and a thermal conductivity of at least about 0.7 W/m·K.Type: GrantFiled: April 23, 2008Date of Patent: October 4, 2011Assignee: E.I. du Pont de Nemours and CompanyInventor: Yuji Saga
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Publication number: 20110233456Abstract: A method of forming a machining spray for treating a surface of a substrate during a machining process includes providing a first component containing solid carbon dioxide particles. A second provided component is derived from an inert gas having a temperature range from 305 K to about 477 K prior to being mixed with the solid carbon dioxide particles. The first component and the second component are combined to form the cryogenic fluid composition prior to contacting the substrate. An optional additive may be mixed with the solid carbon dioxide particles or the inert gas. The cryogenic fluid composition exhibits synergistically enhanced physicochemical properties of each component not observed prior to the combination thereof, wherein the fluid imparts enhanced cooling, heating or lubrication effects.Type: ApplicationFiled: May 9, 2011Publication date: September 29, 2011Applicant: COOL CLEAN TECHNOLOGIES, INC.Inventor: David P. Jackson
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Publication number: 20110226983Abstract: A refrigerant composition consists essentially of three hydrofluorocarbon components selected from HFC134a, HFC125 and HFC143a and an additive selected from a saturated or unsaturated hydrocarbon or mixture thereof boiling in the range ?50° C. and +40° C.Type: ApplicationFiled: May 27, 2011Publication date: September 22, 2011Applicant: RPL HOLDINGS LIMITEDInventors: John Edward Poole, Richard Powell
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Patent number: 8021569Abstract: The present invention relates to compositions comprising flammable refrigerant, fire hazard-reducing agent, and optionally a lubricant suitable for use in a refrigeration or air conditioning apparatus. Further, the present invention relates to compositions comprising lubricant and fire hazard-reducing agent and methods for reducing flammability of flammable refrigerant, for delivering a fire hazard-reducing agent to a refrigeration or air conditioning apparatus, and for replacing a non-flammable refrigerant with a flammable refrigerant.Type: GrantFiled: December 7, 2010Date of Patent: September 20, 2011Assignee: E.I. Du Pont Nemours and CompanyInventors: Thomas J. Leck, Howard S. Hammel
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Publication number: 20110219815Abstract: Compositions, methods and systems which comprise or utilize a multi-component mixture comprising: (a) from about 10% to about 35% by weight of HFC-32; (b) from about 10% to about 35% by weight of HFC-125; (c) from about 20% to about 50% by weight of HFO-1234ze, HFO-1234yf and combinations of these; (d) from about 15% to about 35% by weight of HFC-134a; and optionally (e) up to about 10% by weight of CF3I and up to about 5% by weight of HFCO-1233ze, with the weight percent being based on the total of the components (a)-(e) in the compositionType: ApplicationFiled: May 2, 2011Publication date: September 15, 2011Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Samuel F. YANA MOTTA, Mark W. SPATZ, Ronald P. VOGL, Elizabet del Carmen Vera BECERRA
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Publication number: 20110219792Abstract: The present invention relates to method for heating and/or air conditioning the passenger compartment of an automobile using a reversible cooling loop containing a refrigerant including 2,3,3,30-tetrafluoropropane and at least one compound chosen from among propane, propylene and ethylene. Said method is particularly suitable when the outside temperature is lower than ?20° C. The method is also suitable for hybrid automobiles, which are designed to operate in alternation between a heat engine and an electric engine, as well as for electric vehicles. The present invention also relates to a composition including 2,3,3,3-tetrafluoropropane and at least one compound chosen from among propylene and ethylene, suitable for being used for refrigeration, air conditioning and heating.Type: ApplicationFiled: November 18, 2009Publication date: September 15, 2011Applicant: Arkerna FranceInventor: Wissam Rached
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Publication number: 20110219791Abstract: The present invention relates to a composition including 2,3,3,3-tetrafluoropropene, difluoromethane and at least one compound chosen among propane, propylene and ethylene, suitable for being used for refrigeration, air-conditioning and heating. The present invention also relates to a method for heating and/or air conditioning the passenger compartment of an automobile using a reversible cooling loop containing a refrigerant including said composition. Said method is particularly suitable when the outside temperature is lower than ?20° C. The method is also suitable for hybrid automobiles, which are designed to operate in alternation between a heat engine and an electric engine, as well as for electric vehicles.Type: ApplicationFiled: November 18, 2009Publication date: September 15, 2011Applicant: Arkema FranceInventor: Wissam Rached
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Publication number: 20110220832Abstract: Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of E-1,1,1,4,4,4-hexafluoro-2-butene with methyl formate, n-pentane, 2-methylbutane, trans-1,2-dichloroethylene, 1,1,1,3,3-pentafluoropropane, n-butane or isobutane. 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.Type: ApplicationFiled: May 20, 2011Publication date: September 15, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventor: Mark L. Robin
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Patent number: 8017030Abstract: 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: September 13, 2011Assignee: Honeywell International Inc.Inventors: Rajiv Ratna Singh, Hang T. Pham, Robert Gerard Richard
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Patent number: 8012368Abstract: The present invention relates to fluoroolefin compositions. The fluoroolefin compositions of the present invention are useful as refrigerants or heat transfer fluids and in processes for producing cooling or heat. Additionally, the fluoroolefin compositions of the present invention may be used to replace currently used refrigerant or heat transfer fluid compositions that have higher global warming potential.Type: GrantFiled: January 29, 2010Date of Patent: September 6, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Mario Joseph Nappa, Barbara Haviland Minor
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Publication number: 20110213047Abstract: The present invention relates to compositions which can be used as expanding agent in the manufacture of thermosetting polymers. A more particular subject-matter of the invention is compositions comprising 1,1,1,3,3-pentafluorobutane (365mfc), trans-1,2-dichloroethylene and at least one nonflammable hydrofluorocarbon and their use.Type: ApplicationFiled: March 15, 2005Publication date: September 1, 2011Inventor: Laurent Caron
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Patent number: 8007677Abstract: Disclosed herein are azeotrope and near-azeotrope compositions comprising E-1,1,1,2,3-pentafluoropropene (E-HFC-1225ye) and hydrogen fluoride. The azeotrope and near-azeotrope compositions are useful in processes to produce and in processes to purify E-HFC-1225ye and/or Z-1,1,1,2,3-pentafluoropropene (Z-HFC-1225ye). Also disclosed are processes for the extractive distillation to separate E-HFC-1225ye from Z-HFC-1225ye.Type: GrantFiled: September 7, 2007Date of Patent: August 30, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Jeffrey P. Knapp, Barry Asher Mahler, Velliyur Nott Mallikarjuna Rao
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Patent number: 8008244Abstract: Provided are azeotrope-like compositions comprising tetrafluoropropene and one or more selected hydrorocarbons and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.Type: GrantFiled: July 5, 2007Date of Patent: August 30, 2011Assignee: Honeywell International Inc.Inventors: Gary M. Knopeck, Kane D. Cook, Rajiv R. Singh, Hang T. Pham
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Publication number: 20110204279Abstract: 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: ApplicationFiled: April 28, 2011Publication date: August 25, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: BARBARA HAVILAND MINOR, VELLIYUR NOTT MALLIKARJUNA RAO
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Publication number: 20110207067Abstract: A heat-generating mixture includes 40 to 55 wt % of metal silicide, 40 to 60 wt. % of iron (III) oxide, and 0 to 10 wt. % of silicon. On burning, the heat-generating mixture forms a non-melting, porous slag. In a method of heat generation, to generate heat, an igniter capable of being actuated mechanically or electrically, ignites a booster charge, which in turn ignites the heat-generating mixture. A device for heat generation incudes an igniter capable of being actuated mechanically or electrically, a booster charge and the heat-generating mixture fixed and/or contained in and/or on a casing.Type: ApplicationFiled: May 4, 2011Publication date: August 25, 2011Inventors: Peter Simon Lechner, Ulrich Bley, Rainer Hagel, Aleksei Hoschenko
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Publication number: 20110193008Abstract: The invention relates to a method for producing a low-exuding preferably non-exuding polymer-bonded phase-change material composition containing phase-change material, characterized in that the phase-change material is liquefied, the liquid phase-change material is introduced into an extruder at a temperature of between 50° C. and 130° C., however at least 20° C. to 70° C. above the melting point of the phase-change material into which the polymer is also introduced, wherein the extruder comprises mixing transport and holder elements and the introduction of the phase-change material into the extruder in the extrusion direction is performed after the polymer.Type: ApplicationFiled: March 25, 2009Publication date: August 11, 2011Inventors: Klaus Fieback, Dirk Carsten Buettner, Angelo Schuetz, Stefan Reinemann
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Patent number: 7993542Abstract: A magnetic material for magnetic refrigeration has a composition represented by (R11-yR2y)xFe100-x (R1 is at least one of element selected from Sm and Er, R2 is at least one of element selected from Ce, Pr, Nd, Tb and Dy, and x and y are numerical values satisfying 4?x?20 atomic % and 0.05?y?0.95), and includes a Th2Zn17 crystal phase, a Th2Ni17 crystal phase, or a TbCu7 crystal phase as a main phase.Type: GrantFiled: March 22, 2007Date of Patent: August 9, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Shinya Sakurada, Akiko Saito, Tadahiko Kobayashi, Hideyuki Tsuji
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Publication number: 20110191268Abstract: The invention provides a heat transfer composition comprising R-1234ze(E), R-32 and 1,1,1,2-tetrafluoroethane (R-134a).Type: ApplicationFiled: February 16, 2011Publication date: August 4, 2011Applicant: Mexichem Amanco Holding S.A. de C.V.Inventor: ROBERT E. LOW
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Publication number: 20110186772Abstract: The present invention relates to compositions which are based on tetrafluoropropene and more particularly relates to compositions comprising 60% to 90% by weight of 2,3,3,3-tetrafluoropropene and 10% to 40% by weight of at least one compound selected from difluoroethane and difluoromethane, which can be used as a heat transfer fluid.Type: ApplicationFiled: September 24, 2009Publication date: August 4, 2011Applicant: Arkerna FranceInventor: Wissam Rached
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Publication number: 20110184890Abstract: A heat transfer composition comprising trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), difluoromethane (R-32) and 1,1-difluoroethane (R-152a).Type: ApplicationFiled: January 12, 2011Publication date: July 28, 2011Applicant: Mexichem Amanco Holding S.A. de C.V.Inventor: ROBERT E. LOW
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Patent number: 7985355Abstract: A method for suppressing an electric arc or corona discharge includes providing a device capable of storing, transmitting, or generating an electrical current or field; and enveloping at least a portion of said device with a dielectric gas consisting essentially of: sulfur hexafluoride; a second component selected from the group consisting of nitrous oxide; carbon dioxide; trifluoromethane (R32); trifluoroiodomethane; octafluoropropane (R218); 1,1,1,2,2-pentafluoroethane (R125); propane (R290); 1,1,1,2-tetrafluoropropene (HFO-1234yf); 1,2,3,3-tetrafluoro-2-propene (HFO-1234yc); 1,1,3,3-tetrafluoro-2-propene (HFO-1234zc); 1,1,1,3-tetrafluoro-2-propene (HFO-1234ze); 1,1,2,3-tetrafluoro-2-propene (HFO-1234ye); 1,1,1,2,3-pentafluoropropene (HFO-1225ye); 1,1,2,3,3-pentafluoropropene (HFO-1225yc); 1,1,1,3,3-pentafluoropropene (HFO-1225zc); (Z)1,1,1,3-tetrafluoropropene (HFO-1234zeZ); (Z)1,1,2,3-tetrafluoro-2-propene (HFO-1234yeZ); (E)1,1,1,3-tetrafluoropropene (HFO-1234zeE); (E)1,1,2,3-tetrafluoro-2-propene (HFO-12Type: GrantFiled: March 22, 2010Date of Patent: July 26, 2011Assignee: Honeywell International Inc.Inventors: Matthew H. Luly, Rajiv R. Singh, Robert G. Richard
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Publication number: 20110175015Abstract: An azeotrope-like mixture consisting essentially of chlorotrifluoropropene and at least one component selected from the group consisting of pentane, hexane, methanol, and trans-1,2-dichloroethene.Type: ApplicationFiled: March 28, 2011Publication date: July 21, 2011Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Rajat S. Basu, Kane D. Cook, Leslie Bement, Gary M. Knopeck, Rajiv Ratna Singh, Ryan Hulse, Hang Pham
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Patent number: RE42652Abstract: Near-azeotropic ternary compositions of hydrofluorocarbons with n-butane or isobutane selected from: A) 1,1,1,2-tetrafluoroethane (R134a) 65-94% by weight pentafluoroethane (R125) 2-25% by weight n-butane (R600) and/or isobutane (R-600a) 1-10% by weight B) 1,1,1,2-tetrafluoroethane (R134a) 65-94% by weight 1,1,1,2,3,3,3-heptafluoropropane (R227ea) 5-25% by weight n-butane (R600) and/or isobutane (R-600a) 1-10% by weight Said compositions have zero ODP, very low GWP and good solvent power for mineral lubricants. They are utilizable as drop-in substituents of R-12 in domestic refrigeration.Type: GrantFiled: February 23, 2006Date of Patent: August 30, 2011Assignee: Solvay Solexis SpAInventors: Ezio Musso, Sauro Girolomoni, Giampiero Basile