Vaporization, Or Expansion, Refrigeration Or Heat Or Energy Exchange Patents (Class 252/67)
  • Publication number: 20110173997
    Abstract: Heat transfer compositions are usable in their own right or are suitable as a replacement for existing refrigeration usages. The compositions possess a reduced Greenhouse Warming Potential, yet have a capacity and energy efficiency (which may be conveniently expressed as the “Coefficient of Performance”) ideally within 20% of the values of those attained using R-134a, and preferably within 10% or less (e.g. about 5%) of these values.
    Type: Application
    Filed: March 29, 2011
    Publication date: July 21, 2011
    Applicant: MEXICHEM AMANCO HOLDING, S.A. de C.V.
    Inventors: ROBERT E. LOW, Stuart Corr
  • Publication number: 20110175016
    Abstract: A process for transferring heat from a heat source to a heat sink, comprising using as heat transfer medium a composition comprising: at least one fluorinated fluid free from functional groups (fluid (H)); at least one functional (per)fluoropolyether (functional PFPE(1)) comprising recurring units (R1), said recurring units comprising at least one ether linkage in the main chain and at least one fluorine atom (fluoropolyoxyalkylene chain), and at least one functional end group chosen between —COOH and —CONH2; at least one functional (per)fluoropolyether (functional PFPE(2)) comprising recurring units (R1) as defined above and at least one functional end group chosen between —COCF3 and its hydroxylated derivative —C(OH)2CF3.
    Type: Application
    Filed: September 22, 2009
    Publication date: July 21, 2011
    Applicant: SOLVAY SOLEXIS S.P.A.
    Inventors: Pier Antonio Guarda, Gianfranco Spataro, Padmanabhan Srinivasan, Giuseppe Marchionni
  • Patent number: 7981312
    Abstract: 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 palladium catalyst 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. The present invention also provides another process that involves reacting CCl3CF2CF3 and optionally CCl2FCF2CClF2 with H2 in the presence of a hydrogenation catalyst to form CH3CF2CF3 (and when CCl2FCF2CClF2 is present, CH2FCF2CHF2); dehydrofluorinating; and recovering CH2?CFCF3 or a mixture thereof with CHF?CFCHF2.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: July 19, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mario Joseph Nappa, Velliyur Mallikarjuna Nott Rao, Allen Capron Sievert
  • Patent number: 7981311
    Abstract: Halocarbons of the structure CF3CF2CH2X, wherein X is either F or Cl or mixtures thereof prepared by: contacting at least one 2-fluorochloropropane with hydrogen fluoride in a first fluorination step in the gas phase or liquid phase under substantially anhydrous conditions, in the absence of added catalyst to partially fluorinate said 2-fluorochloropropane; contacting said partially fluorinated 2-fluorochloropropane with at least the stoichiometric molar equivalent of hydrogen fluoride under substantially anhydrous conditions, in the presence of at least one fluorination catalyst in a second fluorination step; removing said reaction products from contact with said catalyst, and isolating a substantial yield of at least 1,1,1,2,2,3-hexafluoropropane or 1,1,1,2,2,penta-3-chloropropane, or mixtures thereof, respectively.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: July 19, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mario Joseph Nappa, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert, Jeffrey P. Knapp
  • Publication number: 20110167844
    Abstract: In general terms, this disclosure is directed towards a vapor recovery system. The vapor recovery system comprises material specifically designed to recondense vapor during defrost cycle. This material would be of sufficient thermal mass to remain at a lower temperature during the defrost cycle. The vapor may be condensed directly in the evaporator compartment or indirectly by removing the vapor to a remotely located recondense medium. The vapor recovery system may comprise of at least one vapor tube, a fan, and a vapor recondenser. The vapor collection tube is located proximate an evaporator. The fan is in fluid communication with the vapor collection tube and the vapor recondenser.
    Type: Application
    Filed: January 8, 2010
    Publication date: July 14, 2011
    Inventor: Sean Edward Drury
  • Publication number: 20110167837
    Abstract: What are described are magnetocaloric materials of the general formula (MnxFe1?x)2+zP1?ySiy where 0.55?x<1 0.4?y?0.8 ?0.1?z?0.1.
    Type: Application
    Filed: January 4, 2011
    Publication date: July 14, 2011
    Applicant: BASF SE
    Inventors: Bennie REESINK, Ekkehard Brueck, Huu Dung Nguyen, Lian Zhang
  • Publication number: 20110168940
    Abstract: The present invention discloses a composition for enhancing evaporation of a solution and a method thereof. A far-infrared ray is released by a far-infrared releasing substance in the composition so as to induce evaporation of the solution. The far-infrared releasing substance may be ceramic minerals and mainly comprises 80˜99.9 wt % of oxide minerals including 60˜95 wt % of the aluminum oxide. The present invention can enhance evaporation of the solution by a simple physical method. Hence, the present invention not only promotes the application of the products but also reduces the pollutants generated by a chemical reaction, thereby achieving the object of protecting the environment from the pollution.
    Type: Application
    Filed: February 23, 2010
    Publication date: July 14, 2011
    Applicants: NATIONAL APPLIED RESEARCH LABORATORIES, TAIPEI MEDICAL UNIVERSITY
    Inventors: YUNG-SHENG LIN, TING-KAI LEUNG, CHIEN-CHUNG CHEN, JIANN-SHIUN KAO
  • Patent number: 7976721
    Abstract: To provide a safe, nontoxic, and high-performance mixed refrigerant for hot water supply/heating system which is prepared by mixing dimethyl ether with carbon dioxide and which does not deplete the ozone layer, has a low global warming potential, and permits low-pressure operation. A refrigerant composition for hot water supply/heating comprising 1 to 10% by mole of dimethyl ether and 99 to 90% by mole of carbon dioxide on the basis of the total number of moles of dimethyl ether and carbon dioxide.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: July 12, 2011
    Assignees: Japan Petroleum Exploration Co., Ltd., Showa Tansan Co., Ltd., Toyota Tsusho Corporation
    Inventors: Seijyuro Maiya, Osamu Nakagome, Hideyuki Suzuki, Yasuhisa Kotani, Toshifumi Hatanaka, Toshihiro Wada
  • Publication number: 20110162410
    Abstract: 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: Application
    Filed: January 12, 2011
    Publication date: July 7, 2011
    Applicant: Mexichem Amanco Holding S.A. de C.V.
    Inventor: ROBERT E. LOW
  • Publication number: 20110163253
    Abstract: A process for making CHF?CFCF3 is disclosed. The process involves (a) reacting CCl2FCF2CF3 with H2 in the presence of a catalytically effective amount of hydrogenation catalyst to form CH2FCF2CF3; and (b) dehydrofluorinating CH2FCF2CF3 from (a) to form CHF?CFCF3. Also disclosed are compositions including CCl3CF2CF3 and HF, wherein the HF is present in an effective amount to form an azeotropic combination with the CCl3CF2CF3; and compositions including CCl2FCF2CF3 and HF, wherein the HF is present in an effective amount to form an azeotropic combination with the CCl2FCF2CF3.
    Type: Application
    Filed: March 14, 2011
    Publication date: July 7, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: ALLEN CAPRON SIEVERT
  • Publication number: 20110163117
    Abstract: An apparatus and method wherein potential ozone layer-damaging chlorodifluoromethane (Refrigerant R-22) is substituted with a mix of less environmentally damaging refrigerants pentafluoroethane and tetrafluoroethane in chlorodifluoromethane-based air-cooling systems mainly in residential cooling. While less environmentally damaging than chlorodifluoromethane, the substitute refrigerant has a temperature-pressure relationship similar to that of chlorodifluoromethane, making the substitute refrigerant suitable for use with chlorodifluoromethane-based air-cooling systems. In this event, it is mixed with a relatively small percentage of a lubricating oil which is compatible with both the unit refrigerant and typical R-22 system design.
    Type: Application
    Filed: December 6, 2010
    Publication date: July 7, 2011
    Inventors: Kenneth M. Ponder, Steffan Thomas, JR.
  • Patent number: 7972525
    Abstract: 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: Grant
    Filed: June 12, 2008
    Date of Patent: July 5, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Mark L. Robin
  • Patent number: 7972529
    Abstract: A lubricant oil for a refrigeration machine, and refrigeration machine, said refrigeration machine being of the type that operates with a refrigerant consisting of at least one component of the HC (hydrocarbon) group, the lubricant oil consisting of an alkylbenzene oil containing at least 80% by weight of alkylbenzene having a molecular weight of 120-288 and having a viscosity between about 3.0 and 7.0 cSt at a temperature of 40° C. and the lubricant composition consisting of said alkylbenzene oil and until about 8% by weight of one or more additives selected from a group consisting of improvers of oxidation resistance and thermal stability, corrosion inhibitors, metal inactivators, lubricity additives, viscosity index improvers, reducers of fluidity and flocculation point, detergents, dispersants, antifoaming agents, antiwear agents and extreme pressure resistant additives.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: July 5, 2011
    Assignee: Whirlpool S.A.
    Inventor: Rosangela Maria Machado
  • Patent number: 7972528
    Abstract: 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: Grant
    Filed: March 5, 2007
    Date of Patent: July 5, 2011
    Assignee: RPL Holdings Limited
    Inventors: John Edward Poole, Richard Powell
  • Patent number: 7972524
    Abstract: 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: Grant
    Filed: April 28, 2008
    Date of Patent: July 5, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Mark L. Robin
  • Publication number: 20110160500
    Abstract: The present invention provides a process for producing 2,3,3,3-tetrafluoropropene, comprising distilling a mixture of water and 2,3,3,3-tetrafluoropropene to separate the mixture into a first stream and a second stream, the first stream containing 2,3,3,3-tetrafluoropropene with a water content higher than the original mixture, and the second stream containing 2,3,3,3-tetrafluoropropene with a water content lower than the original mixture; and obtaining 2,3,3,3-tetrafluoropropene with a reduced water content from the second stream. The process of the invention can efficiently remove water from 2,3,3,3-tetrafluoropropene (HFO-1234yf).
    Type: Application
    Filed: August 21, 2009
    Publication date: June 30, 2011
    Inventor: Kazuhiro Takahashi
  • Publication number: 20110154832
    Abstract: Provided is a method that includes providing a granular first material (e.g., a magnetocaloric material) and a sinterable second material. The granular first material and the sinterable second material can be combined to form an aggregate. Once the aggregate has been formed, localized sintering of the aggregate can be performed, for example, such that, subsequent to localized sintering, the second material is substantially contiguous and binds the granular first material. Associated compositions and systems are also provided.
    Type: Application
    Filed: December 29, 2009
    Publication date: June 30, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jayeshkumar Jayanarayan Barve, Sudhakar Eddula Reddy, Chandrasekhar Samiappan, Duraiswamy Srinivasan, Francis Johnson, Atanu Saha
  • Publication number: 20110155942
    Abstract: The invention is directed to a process for preparing 2,2,2,3-tetrafluoropropene (1234yf), comprising: (i) contacting 1,1,2,3-tetrachloropropene (1230xa) with hydrogen fluoride HF in gas phase in the presence of a fluorination catalyst under conditions sufficient to produce a reaction mixture; (ii) separating the reaction mixture into a first stream comprising HCl, 2,2,2,3-tetrafluoropropene (1234yf) and a second stream comprising HF, 2-chloro-3,3,3-trifluoro-1-propene (1233xf) and 1,1,1,2,2-pentafluoropropane (245cb); (iii) recycling at least a part of the second stream at least in part back to step (i).
    Type: Application
    Filed: December 23, 2010
    Publication date: June 30, 2011
    Applicant: Arkema France
    Inventors: Anne Pigamo, Dominique Deur-Bert, Laurent Wendlinger
  • Publication number: 20110147638
    Abstract: 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 a third component. Also disclosed are compositions where the third component is cyclopentane, methanol, dimethyoxymethane, methyl formate or perfluoro ethyl isopropyl ketone. 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: Application
    Filed: June 25, 2010
    Publication date: June 23, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark L. Robin, Joan Ellen Bartelt
  • Publication number: 20110139208
    Abstract: A nanocomposite thermoelectric material, a thermoelectric element including the nanocomposite thermoelectric material, and a thermoelectric module including the thermoelectric element are disclosed herein. The nanocomposite thermoelectric material includes highly electrically conductive nano metallic particles that are uniformly dispersed in a thermoelectric material matrix. Thus, the nanocomposite thermoelectric material has high thermoelectric performance, and thus, may be used in a wide range of thermoelectric elements and thermoelectric modules.
    Type: Application
    Filed: July 9, 2010
    Publication date: June 16, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-hyoung LEE, Hyun-sik KIM, Sang-mock LEE, Eun-sung LEE, Sang-soo JEE
  • Publication number: 20110144216
    Abstract: This invention relates to compositions, methods and systems having utility in numerous applications, and in particular, uses for compositions containing the compound cis-1,1,1,4,4,4-hexafluoro-2-butene (Z-HFO-1336mzzm), which has the following structure:
    Type: Application
    Filed: December 15, 2010
    Publication date: June 16, 2011
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Ryan Hulse, Gary John Zyhowski, Bjorn Hofman, Dave Williams, Gary Knopeck, Robert G. Richard, Rajat S. Basu, Rajiv Ratna Singh
  • Patent number: 7959825
    Abstract: 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: Grant
    Filed: June 17, 2009
    Date of Patent: June 14, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao, Donald Bernard Bivens, Deepak Perti, Mark Steven Baunchalk
  • Patent number: 7959828
    Abstract: This invention relates to cleaning compositions comprising unsaturated fluorinated hydrocarbons. The invention further relates to use of said cleaning compositions in methods to clean, degrease, deflux, dewater, and deposit fluorolubricant. The invention further relates to novel unsaturated fluorinated hydrocarbons and their use as cleaning compositions and in the methods listed above.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: June 14, 2011
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Mario Joseph Nappa, Melodie A. Schweitzer, Allen Capron Sievert, Ekaterina N Swearingen
  • Publication number: 20110133113
    Abstract: The invention refers to applying carbon dioxide (CO2) solution in liquid, as working fluid in the “Malone” engines, by all possible pressures in the cool reservoir. These solutions have multiply greater coefficient of thermal expansion, by which will be avoided all defects of the till know existing engines. As a solvent can be used water and all kinds of other liquids, by which would be obtained an optimal combination between the different indicators.
    Type: Application
    Filed: July 28, 2009
    Publication date: June 9, 2011
    Inventors: Marieta Pancheva, Viadimir Panchev, Adelina Suvandjieva
  • Patent number: 7956128
    Abstract: A thermoplastic resin composition for a refrigerator according to the present invention can include (A) about 20 to about 40 parts by weight of an acrylonitrile-butadiene-styrene graft copolymer resin prepared by grafting in emulsion polymerization about 60 to about 30% by weight of a monomer mixture comprising a cyanide vinyl compound and an aromatic vinyl compound to about 40 to about 70% by weight of a rubber polymer having an average particle size of about 0.1 to about 0.4 ?m; (B) about 1 to about 20 parts by weight of a styrenic copolymer comprising (b1) about 0 to about 75% by weight of a styrenic copolymer prepared by copolymerizing about 5 to about 20% by weight of a rubber polymer having an average particle size of about 0.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: June 7, 2011
    Assignee: Cheil Industries Inc.
    Inventors: Kang Yeol Park, Hee Jung Park, Jae Hyung Lee
  • Publication number: 20110126550
    Abstract: A magnetocaloric refrigerator uses as a refrigerant a magnetocaloric refrigerant material of the perovskite structure containing lanthanum and also containing Ce, Pr and Nd which may be of the general formula: LalCecPrpNdnRErAaMnXxO3?? wherein: A is at least one of the alkaline earth metals X if present is at least one metal selected from the group consisting of Co, Mn, Fe, Ni, Zn, Cu, Al, V, Ir, Mo, W, Pd, Pt, Mg, Ru, Rh, Cr and Zr, RE if present is at least one lanthanide other than La, Ce, Pr and Nd, the ratio of (l+c+p+n+r+a):(l+x) is from about 1:0.95 to about 1:1.15, the ratio of (l+c+p+n+r):(a) is from about 5:4 to about 7:2, x is from 0 to about 1:0.15, and ?1<?<1.
    Type: Application
    Filed: July 6, 2009
    Publication date: June 2, 2011
    Applicant: TECHNICAL UNIVERSITY OF DENMARK
    Inventors: Søren Linderoth, Peter Vang Henriksen, Stinus Jeppesen
  • Patent number: 7943055
    Abstract: To provide a secondary circulation cooling system using a composition which is less influential over the environment as a secondary coolant, is non-inflammable, has a small pressure drop particularly at a low temperature and has a large heat transfer coefficient. A secondary circulation cooling system comprising a primary cooling means 1 using a primary coolant, a secondary circulation cooling means 13 using a secondary coolant and a heat exchange means 6 to carry out heat exchange between the primary coolant and the secondary coolant, characterized in that a composition comprising a fluorinated ether such as CF2HCF2OCH2CF3, and an alcohol such as ethanol, is used as the secondary coolant.
    Type: Grant
    Filed: May 21, 2007
    Date of Patent: May 17, 2011
    Assignee: Asahi Glass Company, Limited
    Inventor: Masato Fukushima
  • Publication number: 20110108757
    Abstract: The present invention provides a non-flammable refrigerant, which is excellent in handleability while retaining the refrigerating capacity. Specifically, the present invention relates to a refrigerant composition comprising 36 to 50 mass % of 1,1,1,2-tetrafluoroethane (HFC134a) and 50 to 64 mass % of 2,3,3,3-tetrafluoropropene (HFO1234yf).
    Type: Application
    Filed: June 30, 2009
    Publication date: May 12, 2011
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takashi Shibanuma, Tatsumi Tsuchiya
  • Publication number: 20110108756
    Abstract: 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: Application
    Filed: June 30, 2009
    Publication date: May 12, 2011
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tatsumi Tsuchiya, Katsuki Fujiwara, Masahiro Noguchi, Yasufu Yamada
  • Publication number: 20110101264
    Abstract: 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: Application
    Filed: October 6, 2010
    Publication date: May 5, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: JEFFREY P. KNAPP
  • Patent number: 7935268
    Abstract: 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: Grant
    Filed: October 28, 2008
    Date of Patent: May 3, 2011
    Assignee: Honeywell International Inc.
    Inventors: Rajat S. Basu, Kane D. Cook, Leslie Bement, Gary M. Knopeck, Rajiv R. Singh, Ryan Hulse, Hang T. Pham
  • Publication number: 20110095224
    Abstract: 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: Application
    Filed: May 14, 2009
    Publication date: April 28, 2011
    Inventor: Wissam Rached
  • Publication number: 20110088418
    Abstract: Disclosed herein are compositions comprising at least one ionic liquid and at least one fluoroolefin. Such compositions may be useful as absorbent/working fluid pairs in absorption cycle systems for providing cooling or heat.
    Type: Application
    Filed: July 8, 2009
    Publication date: April 21, 2011
    Inventors: Konstantinos Kontomaris, Nandini C. Mouli, Mark Brandon Shiflett
  • Patent number: 7927502
    Abstract: 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: Grant
    Filed: July 22, 2010
    Date of Patent: April 19, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Melodie A. Schweitzer
  • Publication number: 20110084228
    Abstract: 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: 2 to 55% by weight, of 2,3,3,3-tetrafluoropropene, 2 to 55% by weight of HFC-152a and 30 to 55% by weight of HFC-32.
    Type: Application
    Filed: May 14, 2009
    Publication date: April 14, 2011
    Applicant: Arkema France
    Inventor: Wissam Rached
  • Patent number: 7922930
    Abstract: The present invention relates to azeotropic or azeotrope-like compositions comprising a fluorinated olefin having the formula E- or Z -C3F7CH?CHC3F7, and at least one alcohol, halocarbon, hydrofluorocarbon, fluoroether, or alkanes and combinations thereof. In one embodiment, the one compound selected from the group consisting of alcohols, halocarbons, fluoroalkyl ethers, hydrofluorocarbons, alkanes is either methanol, ethanol, iso-propanol, n-propanol, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene, n-propyl bromide, C4F9OCH3, C4F9OC2H5, HFC-43-10mee, HFC-365mfc, heptane, or combinations thereof. 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: Grant
    Filed: May 19, 2010
    Date of Patent: April 12, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Melodie A. Schweitzer, Allen Capron Sievert, Joan Ellen Bartelt, Barbara Haviland Minor
  • Patent number: 7922931
    Abstract: A low-melting point, heat transfer fluid comprising a mixture of LiNO3, NaNO3, KNO3, NaNO2 and KNO2 salts where the Li, Na and K cations are present in amounts of about 20-33.5 mol % Li, about 18.6-40 mol % Na, and about 40-50.3 mol % K and where the nitrate and nitrite anions are present in amounts of about 36-50 mol % NO3, and about 50-62.5 mol % NO2. These compositions can have liquidus temperatures between 70° C. and 80° C. for some compositions.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: April 12, 2011
    Assignee: Sandia Corporation
    Inventors: Joseph G. Cordaro, Robert W. Bradshaw
  • Publication number: 20110079026
    Abstract: 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: Application
    Filed: December 14, 2010
    Publication date: April 7, 2011
    Applicant: EARTHCARE PRODUCTS LIMITED
    Inventors: Nicholas Cox, Victor Mazur, Daniel Colbourne, Andrew Stevenson
  • Publication number: 20110079042
    Abstract: Disclosed is a non-azeotropic refrigerant mixture containing tetrafluoropropane as a high-boiling refrigerant and a refrigeration cycle apparatus in which a non-azeotropic refrigerant mixture containing tetrafluoropropane as a high-boiling refrigerant circulates through a refrigeration cycle so as to avoid occurrence of negative pressure in a low-pressure circuit. The non-azeotropic refrigerant mixture is characterized in that a mixing ratio of a high-boiling refrigerant and a low-boiling refrigerant is determined so that a saturated vapor line where pressure is 0.00 MPa is not higher than ?45° C. in a low-pressure circuit formed between the decompressor to the compressor.
    Type: Application
    Filed: June 12, 2009
    Publication date: April 7, 2011
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tetsuya Yamashita, Akihiro Nishida, Hirokazu Taniguchi, Takashi Okazaki, Yoshihiro Sumida, Masato Yosomiya, Kazuhiko Shiraishi
  • Patent number: 7914697
    Abstract: The refrigerating machine oil composition of the invention is characterized by containing a mixed base oil which has a kinematic viscosity at 40° C. of 0.11 to 8 mm2/s and which is composed of a low-viscosity base oil (A) having a kinematic viscosity at 40° C. of 5 mm2/s or lower, and a high-viscosity base oil (B) having a kinematic viscosity at 40° C. of 20 to 400 mm2/s, each of the base oil (A) and (B) being composed of at least one species selected from among a mineral oil, a synthetic hydrocarbon compound, an oxygen-containing compound, and a sulfur-containing compound. The refrigerating machine oil composition exhibits enhanced energy saving performance by virtue of its low viscosity, has excellent sealing performance and load resistance, and can be employed in various refrigeration means, particularly suitably in a closed-type refrigerator.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: March 29, 2011
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Masato Kaneko
  • Patent number: 7914698
    Abstract: 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: Grant
    Filed: June 17, 2009
    Date of Patent: March 29, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao, Donald Bernard Bivens, Deepak Perti, Mark Steven Baunchalk
  • Patent number: 7914696
    Abstract: Heat transfer compositions are usable in their own right or are suitable as a replacement for existing refrigeration usages. The compositions possess a reduced Greenhouse Warming Potential, yet have a capacity and energy efficiency (which may be conveniently expressed as the “Coefficient of Performance”) ideally within 20% of the values of those attained using R-134a, and preferably within 10% or less (e.g. about 5%) of these values.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: March 29, 2011
    Assignee: Ineos Fluor Holdings Limited
    Inventors: Robert E. Low, Stuart Corr
  • Publication number: 20110062373
    Abstract: A magnetocaloric structure includes a magnetocaloric material and at least one protective layer. The magnetocaloric material has bar type or plank type. The protective layer is disposed on the magnetocaloric material.
    Type: Application
    Filed: September 16, 2010
    Publication date: March 17, 2011
    Inventors: Li CHANG, Hui-Ling Wen, Shih-Pin Meng, Chung-Jung Kuo
  • Patent number: 7906037
    Abstract: 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: Grant
    Filed: June 17, 2009
    Date of Patent: March 15, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
  • Publication number: 20110049413
    Abstract: The present invention relates to new intermetallic compounds having a crystalline structure of Ni3Sn2 type for the magnetic refrigeration, their use and a process for preparing the same. The present invention further relates to new magnetocaloric compositions for the magnetic refrigeration and their use.
    Type: Application
    Filed: March 27, 2009
    Publication date: March 3, 2011
    Applicant: UNIVERSITE HENRI POINCARE NANCY 1
    Inventor: Thomas Mazet
  • Publication number: 20110041530
    Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an amine or a mixture of an amine 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: Application
    Filed: August 31, 2007
    Publication date: February 24, 2011
    Applicant: E. I. DUPONT DE NEMOURS AND COMPANY
    Inventors: Nandini C. Mouli, Barbara Haviland Minor, Mario Joseph Nappa, Thomas J. Leck
  • Publication number: 20110041529
    Abstract: The present invention relates to solvent/cleaner and heat transfer fluid compositions comprising at least one hydrochlorofluoroolefin (HCFO), 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), particularly the trans-isomer. The HCFO of the present invention can be used in combination with co-agents including, hydrofluorocarbons (HFCs), hydrofluoroolefins (HFOs), hydrocarbons, ethers including hydrofluoroethers (HFEs), esters, ketones, alcohols, 1,2-transdichloroethylene and mixtures thereof.
    Type: Application
    Filed: May 12, 2009
    Publication date: February 24, 2011
    Applicant: ARKEMA INC.
    Inventors: Benjamin Bin Chen, Philippe Bonnet, Maher Y. Elsheikh, Brett L. Van Horn, Laurent Abbas
  • Publication number: 20110042608
    Abstract: An open-cell porous shaped body for heat exchangers comprises a thermomagnetic material selected from, for example, (1) compounds of the general formula (I) (AyBy?1)2+?CwDxEz??(I) where A is Mn or Co, B is Fe, Cr or Ni, C, D and E at least two of C, D and E are different, have a non-vanishing concentration and are selected from P, B, Se, Ge, Ga, Si, Sn, N, As and Sb, where at least one of C, D and E is Ge or Si, ? is a number in the range from ?0.1 to 0.1, w, x, y, z are numbers in the range from 0 to 1, where w+x+z=1.
    Type: Application
    Filed: April 27, 2009
    Publication date: February 24, 2011
    Applicant: BASF SE
    Inventor: Bennie Reesink
  • Publication number: 20110041513
    Abstract: What are described are polycrystalline magnetocaloric materials of the general formula MnaCobGecAx with A, B or C 0?x?0.5, 0.9?a?1.1, 0.9?b?1.1, 0.9?c?1.0, where up to 30 mol % of the Mn or Co may be replaced by Fe, Ni, Cr, V or Cu or up to 30 mol % of the Mn, Co or Ge may be replaced by vacancies, in which phases of the orthorhombic TiNiSi structure type and of the hexagonal Ni2In structure type are present at a temperature below ?40° C.
    Type: Application
    Filed: August 9, 2010
    Publication date: February 24, 2011
    Applicant: Technology Foundation STW
    Inventor: Bennie REESINK
  • Publication number: 20110037017
    Abstract: 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: Application
    Filed: March 26, 2007
    Publication date: February 17, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Thomas J. Leck