Vaporization, Or Expansion, Refrigeration Or Heat Or Energy Exchange Patents (Class 252/67)
  • Patent number: 9303198
    Abstract: The present invention provides a stabilized refrigerant composition containing a hydrofluoropropene with low global warming potential (GWP) that can remain stable even in the presence of air (oxygen) for a long period of time. More specifically, the present invention provides a refrigerant composition containing a hydrofluoropropene and a stabilizer. The stabilizer is at least one member selected from the group consisting of alkylcatechols, alkoxyphenols, benzoquinones, phenothiazines, and phthalates.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: April 5, 2016
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Tatsumi Tsuchiya, Takashi Shibanuma, Yasufu Yamada, Hitomi Kuroki
  • Patent number: 9287597
    Abstract: Embodiments of the invention are related to ionic liquids and more specifically to ionic liquids used in electrochemical metal-air cells in which the ionic liquid includes a cation and an anion selected from hydroxamate and/or N-alkyl sulfamate anions.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: March 15, 2016
    Assignee: FLUIDIC, INC.
    Inventors: Cody A. Friesen, Derek Wolfe, Paul Bryan Johnson
  • Patent number: 9284241
    Abstract: A method for removing a contaminant from a hydrochlorofluoroolefin (such as trans-1,1,1-trifluoro-3-chloro-2-propene (1233zd(E))) includes extracting a chlorofluorocarbon (such as trichlorofluoromethane (R11)) from a mixture comprising the hydrochlorofluoroolefin and the chlorofluorocarbon using extractive distillation in the presence of an extractive solvent comprising a chlorinated compound to form a purified hydrochlorofluoroolefin. This separation method provides for removal of a contaminant, such as R11, from a hydrochlorofluoroolefin, such as 1232zd(E), which are not separable by conventional distillation methods. The method may employ a process utilizing two distillation columns, for example, a first extractive distillation column and a second solvent recovery column, which allows for recycle of the extractive solvent to the first extractive distillation column.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: March 15, 2016
    Assignee: Arkema Inc.
    Inventor: John A. Wismer
  • Patent number: 9267067
    Abstract: Disclosed herein is a heat transfer fluid, comprising a hydroxylated carboxylic acid of formula (OH)x(R1)(COOH)y, wherein x is 2 to 10, y is 3 to 10, and R1 is a C2-50 aliphatic group, a C6-50 aromatic group, or a combination thereof; and wherein the hydroxylated carboxylic acid comprises the hydroxylated carboxylic acid, an ester thereof, a salt thereof, an anhydride thereof, or a combination thereof. A heat transfer system comprises an aluminum component, a magnesium component, or an aluminum component and a magnesium component; and the foregoing heat transfer fluid.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: February 23, 2016
    Assignee: Prestone Products Corporation
    Inventors: Bo Yang, Aleksei V. Gershun, Peter M. Woyciesjes
  • Patent number: 9254468
    Abstract: The present invention relates to formulated refrigerant systems of 1-chloro-3,3,3-trifluoropropene (R-1233zd) that are sufficiently thermally and chemically stable such that they can be effectively used sans additional stabilizers. The formulations of the present invention are particularly useful compositions for refrigeration, heat transfer and foam blowing.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: February 9, 2016
    Assignee: Arkema Inc.
    Inventors: Brett L. Van Horn, Maher Y. Elsheikh, Benjamin Bin Chen, Philippe Bonnet
  • Patent number: 9217100
    Abstract: Disclosed herein is a chiller apparatus containing refrigerant characterized by said refrigerant being HFO-1336mzz that is trans isomer or primarily trans isomer. These chillers may be flooded evaporators or direct expansion evaporators, which utilize either centrifugal or screw compressors. Also disclosed herein are methods for producing cooling comprising evaporating trans-HFO-1336mzz in an evaporator in the vicinity of a body to be cooled, thereby producing cooling. Also disclosed herein is a method for replacing HFC-236fa or CFC-114 refrigerant in a chiller apparatus, said method comprising providing HFO-1336mzz to said chiller apparatus in place of the replaced refrigerant; wherein said HFO-1336mzz is trans isomer or primarily trans isomer.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: December 22, 2015
    Assignee: THE CHEMOURS COMPANY FC, LLC
    Inventor: Konstantinos Kontomaris
  • Patent number: 9200189
    Abstract: Present invention relates to a refrigerant composition comprising tetrafluorethane, difluoromethane and pentafluoroethane for use in heating and cooling applications, especially for inverter air-conditioners/heat pumps.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: December 1, 2015
    Assignee: ECO D'GAS AS
    Inventor: Charles P. McKenna
  • Patent number: 9187683
    Abstract: The invention provides a heat transfer composition consisting essentially of from about 62 to about 78% by weight trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)) and from about 22 to about 38% by weight of 1,1-difluoroethane (R-152a). The invention also provides a heat transfer composition comprising from about 20 to about 40% by weight R-152a, from about 5 to about 55% R-134a, and from about 5 to about 75% by weight R-1234ze(E).
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: November 17, 2015
    Assignee: Mexichem Amanco Holding S.A. De C.V.
    Inventor: Robert E. Low
  • Patent number: 9175203
    Abstract: Compositions containing 2,3,3,3-tetrafluoropropene and to the uses thereof as heat transfer fluid, expansion agents, solvents and aerosol. Compositions essentially containing between 10 and 90 wt. % of 2,3,3,3-tetrafluoropropene, between 5 and 80 wt. % of HFC-134a and between 5 and 10 wt. % of HFC-32. Compositions essentially containing from 10 to 45% by weight of 2,3,3,3-tetrafluoropropene, from 50 to 80% by weight of HFC-134a and from 5 to 10% by weight of HFC-32.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: November 3, 2015
    Assignee: ARKEMA FRANCE
    Inventor: Wissam Rached
  • Patent number: 9133379
    Abstract: The invention relates to binary compositions of 2,3,3,3-tetrafluoropropene and difluoromethane, and especially to the uses thereof as a heat transfer fluid in compression systems with exchangers operating in counterflow mode or in split flow mode with counterflow tendency. The invention also relates to a heat transfer method.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: September 15, 2015
    Assignee: ARKEMA FRANCE
    Inventor: Wissam Rached
  • Patent number: 9127191
    Abstract: The use of a ternary composition of 2,3,3,3-tetrafluoropropene, 1,1,1,2-tetrafluoroethane and difluoromethane, as a heat-transfer fluid, in compression refrigeration systems with exchangers operating in counterflow mode or in cross-flow mode with counterflow tendency. A heat-transfer process in which a ternary composition of 2,3,3,3-tetrafluoropropene, 1,1,1,2-tetrafluoroethane and difluoromethane is used as a refrigerant in compression systems with exchangers operating in counterflow mode or in cross-flow mode with counterflow tendency.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: September 8, 2015
    Assignee: ARKEMA FRANCE
    Inventor: Wissam Rached
  • Patent number: 9109149
    Abstract: The present disclosure relates to refrigerants generally, and more specifically to non-flammable, 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: Grant
    Filed: February 3, 2014
    Date of Patent: August 18, 2015
    Inventor: Ahmad M. Shihab
  • Patent number: 9074115
    Abstract: The invention provides a heat transfer composition comprising (i) from about 45 to about 75% by weight 2,3,3,3-tetrafluoropropene (R-1234yf); and (ii) from about 25 to about 55% by weight 1,1,1,2-tetrafluoroethane (R-134a). A heat transfer composition comprising, optionally consisting essentially of, (i) from about 20 to about 90% by weight R-1234yf; (ii) from about 10 to about 60% by weight R-134a; and (iii) from about 1 to about 20% by weight R-32 is also provided.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: July 7, 2015
    Assignee: Mexichem Amanco Holding S.A. de C.V.
    Inventor: Robert E. Low
  • Patent number: 9057010
    Abstract: The invention relates to a ternary composition comprising: from 5 to 50% of difluoromethane;—from 2 to 20% of pentafluoroethane; and—from 30 to 90% of tetrafluoropropeae. The tetrafluoropropeae may be 1,3,3,3-tetrafluoropropene or 2,3,3,3-tetrafluoropropene. This composition can be used as a heat-transfer fluid in vapor compression circuit.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: June 16, 2015
    Assignee: ARKEMA FRANCE
    Inventor: Wissam Rached
  • Patent number: 9046348
    Abstract: The invention relates to a heat transfer method that uses a composition containing from 60 to 95 wt % of 1,1,1,3,3-pentafluoropropane and from 5 to 40 wt % of at least one hydrocarbon selected from n-pentane, isopentane and cyclopentane. The invention more particularly relates to a heat transfer method that successively includes the step of evaporating a refrigerant fluid, a compression step, the step of condensing said fluid at a temperature higher than or equal to 35° C., and preferably between 70° C. and 140° C., and the step of expanding said fluid, characterized in that the refrigerant fluid includes from 60 to 95 wt % of 1,1,1,3,3-pentafluoropropane and from 5 to 40 wt % of at least one hydrocarbon selected from n-pentane, isopentane and cyclopentane.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: June 2, 2015
    Assignee: ARKEMA FRANCE
    Inventors: Laurent Abbas, Wissam Rached
  • Publication number: 20150144306
    Abstract: Heat transfer systems, methods and compositions which utilize a heat transfer fluid comprising: (a) from about 30% to about 65% by weight of HFC-134a; (b) from about 0% to about 70% by weight of HFO1234ze; and (c) from about 0% to about 70% by weight of HFO-1234yf, provided that the amount of HFO-1234ze and HFO-1234yf in the composition together is at least about 35% by weight, with the weight percent being based on the total of the components (a)-(c) in the composition.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 28, 2015
    Inventors: Samuel F. Yana Motta, Mark W. Spatz, Rajiv Ratna Singh, Robert Gerard Richard, Elizabet del Carmen Vera Becerra, Daniel Burger
  • Publication number: 20150144316
    Abstract: A method of producing a heat conductive sheet includes: a step (A) of dispersing a fibrous filler and a spherical filler in a binder resin to prepare a heat conductive sheet-forming composition; a step (B) of forming a molded block using the prepared heat conductive sheet-forming composition; a step (C) of slicing the formed molded block to a desired thickness to form a sheet; and a step (D) of pressing the sliced surface of the formed sheet, the sliced surface being pressed such that the thermal resistance value of the sheet after pressing becomes lower than the thermal resistance value of the sheet before pressing.
    Type: Application
    Filed: July 8, 2013
    Publication date: May 28, 2015
    Inventor: Keisuke Aramaki
  • Publication number: 20150147280
    Abstract: An azeotrope-like mixture consisting essentially of chlorotrifluoropropene and at least one component selected from the group consisting of a C1-C3 alcohol, a C5-C6 hydrocarbon, a halogenated hydrocarbon, methylal, methyl acetone, water, nitromethane, and combinations thereof.
    Type: Application
    Filed: January 30, 2015
    Publication date: May 28, 2015
    Inventors: Rajat Basu, Leslie Bement, Kane Cook, Ryan Hulse, Gary Knopeck, Hang T. Pham, Rajiv R. Singh, David J. Williams
  • Publication number: 20150144833
    Abstract: Present invention relates to a refrigerant composition comprising tetrafluorethane, difluoromethane and pentafluoroethane for use in heating and cooling applications, especially for inverter air-conditioners/heat pumps.
    Type: Application
    Filed: May 8, 2013
    Publication date: May 28, 2015
    Inventor: Charles P. McKenna
  • Publication number: 20150148873
    Abstract: A solution of erythritol and water, saturated at a desired therapeutic temperature, is contained in a hot water bottle, or other appropriate vessel, for the purpose of therapeutic warming, for example, for the relief of gastro-intestinal or muscular discomfort. The heat of crystallization of the erythritol significantly extends the time of therapeutic warming. Nucleation agents are added to delay the formation of large crystals upon cooling of the solution. The resulting product is non-toxic to humans and to canines.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Inventor: Gary Robert Prok
  • Patent number: 9039923
    Abstract: 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: Grant
    Filed: February 14, 2012
    Date of Patent: May 26, 2015
    Assignee: United Technologies Corporation
    Inventors: Ahmad M. Mahmoud, Jaeseon Lee, Dong Luo
  • Patent number: 9039922
    Abstract: The invention relates to binary compositions of 2,3,3,3-tetrafluoropropene and difluoromethane, as a heat transfer fluid in compression, low-temperature and average temperature refrigeration systems, with exchangers operating in counterflow mode or in split flow mode with counterflow tendency. The invention also relates to a heat transfer method.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: May 26, 2015
    Assignee: ARKEMA FRANCE
    Inventor: Wissam Rached
  • Publication number: 20150135745
    Abstract: 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: Application
    Filed: January 23, 2015
    Publication date: May 21, 2015
    Inventors: MARIO JOSEPH NAPPA, Barbara Haviland Minor, Allen Capron Sievert
  • Publication number: 20150135765
    Abstract: Compositions, methods and systems which comprise or utilize a multi-component mixture comprising: (a) HFC-32; (b) HFC-125; (c) HFO-1234yf and/or HFO-1234ze; (d) HFC-134a. In certain non-limiting aspects, such refrigerants may be used as a replacement for R-404A.
    Type: Application
    Filed: January 30, 2015
    Publication date: May 21, 2015
    Inventors: SAMUEL F. YANA MOTTA, MARK W. SPATZ, RONALD P. VOGL, ELIZABET del CARMEN VERA BECERRA
  • Patent number: 9028706
    Abstract: 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: Grant
    Filed: September 11, 2013
    Date of Patent: May 12, 2015
    Assignee: Arkema France
    Inventors: Wissam Rached, Jean-Christophe Boutier
  • Publication number: 20150122461
    Abstract: A working medium containing 2-methoxy-1,1,1,3,3,3-hexafluoropropane (HFE-356mmz) as a main component is disclosed. This working medium is a new working medium for a boiling-type cooler, which has a light burden on the environment such as the global warming potential, etc., is slightly flammable or flame retardant, has superior thermal and chemical stabilities, and a good compatibility with heat exchangers formed of various metal materials. This medium for the boiling-type cooler can be preferably used as a working medium for a cooler of a PCU (power control unit) of a car.
    Type: Application
    Filed: February 26, 2013
    Publication date: May 7, 2015
    Inventors: Yoshio Nishiguchi, Satoru Okamoto, Fuyuhiko Sakyu
  • Publication number: 20150121873
    Abstract: 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: Application
    Filed: January 14, 2015
    Publication date: May 7, 2015
    Inventors: BARBARA HAVILAND MINOR, ROBERT L. WATERLAND
  • Publication number: 20150121911
    Abstract: 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: Application
    Filed: January 14, 2015
    Publication date: May 7, 2015
    Inventors: BARBARA HAVILAND MINOR, ROBERT L. WATERLAND
  • Publication number: 20150121910
    Abstract: The present invention relates, in part, to heat transfer and refrigerant compositions and methods that include HFC-32; HFO-1234ze and HFC-125.
    Type: Application
    Filed: January 9, 2015
    Publication date: May 7, 2015
    Inventors: Samuel F. Yana Motta, Mark W. Spatz, Elizabet Del Carmen Vera Becerra, Ankit Sethi, Thomas Morris
  • Patent number: 9023231
    Abstract: Non ozone depleting and non flammable refrigerant compositions with GWPs less than 2,000 ITH which replace R404A, R507, HCFC22 and CFC502 in refrigeration systems.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: May 5, 2015
    Assignee: RPL Holdings Limited
    Inventors: John Edward Poole, Richard Powell
  • Patent number: 9023233
    Abstract: To provide a method for efficiently separating 2,3,3,3-tetrafluoropropene (HFO-1234yf) and chloromethane (R40) from a composition comprising HFO-1234yf and R40. An azeotrope-like composition comprising from 58 to 78 mol % of HFO-1234yf and from 22 to 42 mol % of R40, and a method for producing HFO-1234yf, which comprises steps of distilling an initial mixture containing HFO-1234yf in a content exceeding 63 mol % in the total amount of HFO-1234yf and R40, thereby to separate the initial mixture into a first fraction in which the content of HFO-1234yf in the total amount of HFO-1234yf and R40 is lower than the content of HFO-1234yf in the total amount of HFO-1234yf and R40 in the initial mixture, and a second fraction in which the content of HFO-1234yf in the total amount of HFO-1234yf and R40 is higher than the content of HFO-1234yf in the total amount of HFO-1234yf and R40 in the initial mixture, and then obtaining HFO-1234yf having a reduced R40 concentration, from the second fraction.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: May 5, 2015
    Assignee: Asahi Glass Company, Limited
    Inventors: Shoji Furuta, Tetsuo Otsuka
  • Patent number: 9011711
    Abstract: The invention relates to a heat transfer method using a ternary composition containing 2,3,3,3-tetrafluoropropene, 1,1-difluoroethane and difluoromethane, as a heat transfer fluid in refrigeration systems, to replace the R-410A mixture.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: April 21, 2015
    Assignee: Arkema France
    Inventor: Wissam Rached
  • Patent number: 9005467
    Abstract: Various uses of tetrafluoropropenes, particularly (HFO-1234) in a variety of applications, including refrigeration equipment, are 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: Grant
    Filed: June 26, 2006
    Date of Patent: April 14, 2015
    Assignee: Honeywell International Inc.
    Inventors: Rajiv R. Singh, Hang T. Pham, David P. Willson, Raymond H. Thomas, Mark W. Spatz, David A. Metcalf
  • Patent number: 9005468
    Abstract: The invention relates to a ternary composition comprising difluoromethane, 3,3,3-trifluoropropene and a hydrocarbon-derived compound containing at least two fluorine atoms and having a boiling point of between ?30 and ?18° C., which is selected from 1,1-difluoroethane, 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene. This composition is particularly suitable for use as a heat-transfer fluid in the presence of countercurrent heat exchangers.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: April 14, 2015
    Assignee: Arkema France
    Inventor: Wissam Rached
  • Patent number: 9003797
    Abstract: A method is provided for converting heat from a heat source to mechanical energy. The method comprises heating a working fluid using heat supplied from the heat source; and expanding the heated working fluid to lower the pressure of the working fluid and generate mechanical energy as the pressure of the working fluid is lowered. The method is characterized by using a working fluid comprising HFC-245eb and optionally Z-HFO-1336mzz. A power cycle apparatus containing a working fluid to convert heat to mechanical energy is also provided. The apparatus is characterized by containing a working fluid comprising HFC-245eb and optionally Z-HFO-1336mzz. A working fluid comprising HFC-245eb and optionally Z-HFO-1336mzz is also provided. The working fluid (i) further comprises E-HFO-1336mzz, (ii) has a temperature above its critical temperature, or both (i) and (ii).
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: April 14, 2015
    Assignee: E l du Pont de Nemours and Company
    Inventor: Konstantinos Kontomaris
  • Publication number: 20150096312
    Abstract: A composition including 2,3,3,4,4,4-hexafluorobut-1-ene as a mixture with one or more hydrocarbon, hydrofluorocarbon, ether, hydrofluoroether or fluoroolefin compounds having a boiling point of less than or equal to 0° C. Also, the use of such a composition in heat transfer applications. Also, a heat transfer installation including a vapor compression circuit containing such a composition as heat-transfer fluid or containing a heat-transfer composition including such a composition, and also one or more additives chosen from lubricants, stabilizers, surfactants, tracers, fluorescers, odorous agents and solubilizers, and mixtures thereof.
    Type: Application
    Filed: March 29, 2013
    Publication date: April 9, 2015
    Inventor: Wissam Rached
  • Patent number: 8999192
    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: Grant
    Filed: September 22, 2009
    Date of Patent: April 7, 2015
    Assignee: Solvay Specialty Polymers Italy S.p.A.
    Inventors: Pier Antonio Guarda, Gianfranco Spataro, Padmanabhan Srinivasan, Giuseppe Marchionni
  • Patent number: 8999190
    Abstract: The invention provides a heat transfer composition comprising R-1234ze (E), R-32 and 1,1,1,2-tetrafluoroethane (R-134a).
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: April 7, 2015
    Assignee: Mexichem Amanco Holding S.A. de C.V.
    Inventor: Robert E Low
  • Patent number: 8999191
    Abstract: Refrigerant compositions are disclosed which includes (a) 57-59 total wt % pentafluoroethane (R125); (b) 38-41 total wt % 1,1,1,2-tetrafluoroethane (R134a); and (c) 2.5-2.9 total wt % isobutane. More preferably, the invention is a refrigerant formulation containing a nominal composition consisting of 58.0% R125, 39.3% R134a and 2.7% R600a, subject only to the normal variations in concentrations experienced with charging and mixing refrigerants.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 7, 2015
    Assignee: National Refrigerants, Inc.
    Inventor: Robert Yost
  • Publication number: 20150089965
    Abstract: 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 composition
    Type: Application
    Filed: December 5, 2014
    Publication date: April 2, 2015
    Inventors: Samuel F. Yana Motta, Mark W. Spatz, Ronald P. Vogl, Elizabet del Carmen Vera Becerra
  • Publication number: 20150083957
    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: Application
    Filed: December 2, 2014
    Publication date: March 26, 2015
    Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
  • Publication number: 20150075165
    Abstract: The invention provides a heat transfer composition comprising (i) from about 45 to about 75% by weight 2,3,3,3-tetrafluoropropene (R-1234yf); and (ii) from about 25 to about 55% by weight 1,1,1,2-tetrafluoroethane (R-134a). A heat transfer composition comprising, optionally consisting essentially of, (i) from about 20 to about 90% by weight R-1234yf; (ii) from about 10 to about 60% by weight R-134a; and (iii) from about 1 to about 20% by weight R-32 is also provided.
    Type: Application
    Filed: November 25, 2014
    Publication date: March 19, 2015
    Applicant: Mexichem Amanco Holding S.A. de C.V.
    Inventor: Robert E. Low
  • Patent number: 8980118
    Abstract: Compositions, methods and systems which comprise or utilize a multi-component mixture comprising: (a) HFC-32; (b) HFC-125; (c) HFO-1234yf and/or HFO-1234ze; (d) HFC-134a. In certain non-limiting aspects, such refrigerants may be used as a replacement for R-404A.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: March 17, 2015
    Assignee: Honeywell International Inc.
    Inventors: Samuel F. Yana Motta, Mark W. Spatz, Ronald P. Vogl, Elizabet del Carmen Vera Becerra
  • Publication number: 20150068227
    Abstract: 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: Application
    Filed: November 12, 2014
    Publication date: March 12, 2015
    Inventors: MARIO JOSEPH NAPPA, BARBARA HAVILAND MINOR, ALLEN CAPRON SIEVERT
  • Patent number: 8974689
    Abstract: A working medium for heat cycle includes 1,1-dichloro-2,3,3,3-tetrafluoropropene, and a hydrofluorocarbon. A content of the hydrofluorocarbon is from 1 to 60 mass % in the working medium for heat cycle. The working medium for heat cycle preferably further includes a hydrocarbon. The hydrofluorocarbon is preferably at least one of difluoromethane, difluoroethane, trifluoroethane, tetrafluoroethane, pentafluoroethane, pentafluoropropane, hexafluoropropane, heptafluoropropane, pentafluorobutane or heptafluorocyclopentane. A heat apparatus includes the working medium for heat cycle.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: March 10, 2015
    Assignee: Asahi Glass Company, Limited
    Inventor: Masato Fukushima
  • Patent number: 8974690
    Abstract: 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: Grant
    Filed: June 6, 2014
    Date of Patent: March 10, 2015
    Assignee: Honeywell International Inc.
    Inventors: Robert C. Johnson, Hsueh S. Tung, Rajiv R. Singh, Ian Shankland
  • Patent number: 8974688
    Abstract: Heat transfer systems, methods and compositions which utilize a heat transfer fluid comprising: (a) from about 30% to about 65% by weight of HFC-134a; (b) from about 0% to about 70% by weight of HFO1234ze; and (c) from about 0% to about 70% by weight of HFO-1234yf, provided that the amount of HFO-1234ze and HFO-1234yf in the composition together is at least about 35% by weight, with the weight percent being based on the total of the components (a)-(c) in the composition.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: March 10, 2015
    Assignee: Honeywell International Inc.
    Inventors: Samuel F. Yana Motta, Mark W. Spatz, Rajiv Ratna Singh, Robert Gerard Richard, Elizabet del Carmen Vera Becerra, Daniel Burger
  • Publication number: 20150065585
    Abstract: Provided are azeotrope-like compositions comprising tetrafluoropropene and hydrofluorocarbons and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.
    Type: Application
    Filed: November 11, 2014
    Publication date: March 5, 2015
    Inventors: RAJIV R. SINGH, HANG T. PHAM, GARY M. KNOPECK
  • Patent number: 8961811
    Abstract: 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: Grant
    Filed: April 14, 2011
    Date of Patent: February 24, 2015
    Assignee: E I du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Robert L. Waterland
  • Patent number: 8961808
    Abstract: Azeotrope-like compositions are disclosed. The azeotrope-like compositions are mixtures of E-1-chloro-2,3,3,3-tetrafluoropropene with E-1,1,1,4,4,4-hexafluoro-2-butene or E-1,1,1,4,4,5,5,5-octafluoro-2-pentene. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotrope-like compositions. Also disclosed is a process of using such azeotrope-like compositions as dielectrics.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: February 24, 2015
    Assignee: E I du Pont de Nemours and Company
    Inventor: Mark L Robin