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: 9303198Abstract: 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: GrantFiled: May 14, 2014Date of Patent: April 5, 2016Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Tatsumi Tsuchiya, Takashi Shibanuma, Yasufu Yamada, Hitomi Kuroki
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Patent number: 9287597Abstract: 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: GrantFiled: November 12, 2013Date of Patent: March 15, 2016Assignee: FLUIDIC, INC.Inventors: Cody A. Friesen, Derek Wolfe, Paul Bryan Johnson
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Patent number: 9284241Abstract: 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: GrantFiled: February 22, 2013Date of Patent: March 15, 2016Assignee: Arkema Inc.Inventor: John A. Wismer
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Patent number: 9267067Abstract: 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: GrantFiled: July 8, 2014Date of Patent: February 23, 2016Assignee: Prestone Products CorporationInventors: Bo Yang, Aleksei V. Gershun, Peter M. Woyciesjes
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Patent number: 9254468Abstract: 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: GrantFiled: December 18, 2013Date of Patent: February 9, 2016Assignee: Arkema Inc.Inventors: Brett L. Van Horn, Maher Y. Elsheikh, Benjamin Bin Chen, Philippe Bonnet
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Patent number: 9217100Abstract: 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: GrantFiled: September 15, 2010Date of Patent: December 22, 2015Assignee: THE CHEMOURS COMPANY FC, LLCInventor: Konstantinos Kontomaris
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Patent number: 9200189Abstract: 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: GrantFiled: May 8, 2013Date of Patent: December 1, 2015Assignee: ECO D'GAS ASInventor: Charles P. McKenna
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Patent number: 9187683Abstract: 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: GrantFiled: February 14, 2011Date of Patent: November 17, 2015Assignee: Mexichem Amanco Holding S.A. De C.V.Inventor: Robert E. Low
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Patent number: 9175203Abstract: 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: GrantFiled: July 18, 2014Date of Patent: November 3, 2015Assignee: ARKEMA FRANCEInventor: Wissam Rached
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Patent number: 9133379Abstract: 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: GrantFiled: August 17, 2010Date of Patent: September 15, 2015Assignee: ARKEMA FRANCEInventor: Wissam Rached
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Patent number: 9127191Abstract: 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: GrantFiled: July 11, 2014Date of Patent: September 8, 2015Assignee: ARKEMA FRANCEInventor: Wissam Rached
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Patent number: 9109149Abstract: 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: GrantFiled: February 3, 2014Date of Patent: August 18, 2015Inventor: Ahmad M. Shihab
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Patent number: 9074115Abstract: 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: GrantFiled: November 25, 2014Date of Patent: July 7, 2015Assignee: Mexichem Amanco Holding S.A. de C.V.Inventor: Robert E. Low
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Patent number: 9057010Abstract: 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: GrantFiled: April 18, 2011Date of Patent: June 16, 2015Assignee: ARKEMA FRANCEInventor: Wissam Rached
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Patent number: 9046348Abstract: 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: GrantFiled: January 13, 2010Date of Patent: June 2, 2015Assignee: ARKEMA FRANCEInventors: Laurent Abbas, Wissam Rached
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Publication number: 20150144306Abstract: 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: ApplicationFiled: January 26, 2015Publication date: May 28, 2015Inventors: Samuel F. Yana Motta, Mark W. Spatz, Rajiv Ratna Singh, Robert Gerard Richard, Elizabet del Carmen Vera Becerra, Daniel Burger
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Publication number: 20150144316Abstract: 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: ApplicationFiled: July 8, 2013Publication date: May 28, 2015Inventor: Keisuke Aramaki
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Publication number: 20150147280Abstract: 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: ApplicationFiled: January 30, 2015Publication date: May 28, 2015Inventors: Rajat Basu, Leslie Bement, Kane Cook, Ryan Hulse, Gary Knopeck, Hang T. Pham, Rajiv R. Singh, David J. Williams
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Publication number: 20150144833Abstract: 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: ApplicationFiled: May 8, 2013Publication date: May 28, 2015Inventor: Charles P. McKenna
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Publication number: 20150148873Abstract: 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: ApplicationFiled: November 24, 2014Publication date: May 28, 2015Inventor: Gary Robert Prok
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Patent number: 9039923Abstract: 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: GrantFiled: February 14, 2012Date of Patent: May 26, 2015Assignee: United Technologies CorporationInventors: Ahmad M. Mahmoud, Jaeseon Lee, Dong Luo
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Patent number: 9039922Abstract: 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: GrantFiled: August 17, 2010Date of Patent: May 26, 2015Assignee: ARKEMA FRANCEInventor: Wissam Rached
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Publication number: 20150135745Abstract: 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: ApplicationFiled: January 23, 2015Publication date: May 21, 2015Inventors: MARIO JOSEPH NAPPA, Barbara Haviland Minor, Allen Capron Sievert
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Publication number: 20150135765Abstract: 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: ApplicationFiled: January 30, 2015Publication date: May 21, 2015Inventors: SAMUEL F. YANA MOTTA, MARK W. SPATZ, RONALD P. VOGL, ELIZABET del CARMEN VERA BECERRA
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Patent number: 9028706Abstract: 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: GrantFiled: September 11, 2013Date of Patent: May 12, 2015Assignee: Arkema FranceInventors: Wissam Rached, Jean-Christophe Boutier
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Publication number: 20150122461Abstract: 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: ApplicationFiled: February 26, 2013Publication date: May 7, 2015Inventors: Yoshio Nishiguchi, Satoru Okamoto, Fuyuhiko Sakyu
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Publication number: 20150121873Abstract: 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: January 14, 2015Publication date: May 7, 2015Inventors: BARBARA HAVILAND MINOR, ROBERT L. WATERLAND
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Publication number: 20150121911Abstract: 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: January 14, 2015Publication date: May 7, 2015Inventors: BARBARA HAVILAND MINOR, ROBERT L. WATERLAND
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Publication number: 20150121910Abstract: The present invention relates, in part, to heat transfer and refrigerant compositions and methods that include HFC-32; HFO-1234ze and HFC-125.Type: ApplicationFiled: January 9, 2015Publication date: May 7, 2015Inventors: Samuel F. Yana Motta, Mark W. Spatz, Elizabet Del Carmen Vera Becerra, Ankit Sethi, Thomas Morris
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Patent number: 9023231Abstract: 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: GrantFiled: December 21, 2010Date of Patent: May 5, 2015Assignee: RPL Holdings LimitedInventors: John Edward Poole, Richard Powell
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Patent number: 9023233Abstract: 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: GrantFiled: September 26, 2014Date of Patent: May 5, 2015Assignee: Asahi Glass Company, LimitedInventors: Shoji Furuta, Tetsuo Otsuka
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Patent number: 9011711Abstract: 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: GrantFiled: August 17, 2010Date of Patent: April 21, 2015Assignee: Arkema FranceInventor: Wissam Rached
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Patent number: 9005467Abstract: 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: GrantFiled: June 26, 2006Date of Patent: April 14, 2015Assignee: Honeywell International Inc.Inventors: Rajiv R. Singh, Hang T. Pham, David P. Willson, Raymond H. Thomas, Mark W. Spatz, David A. Metcalf
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Patent number: 9005468Abstract: 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: GrantFiled: April 18, 2011Date of Patent: April 14, 2015Assignee: Arkema FranceInventor: Wissam Rached
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Patent number: 9003797Abstract: 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: GrantFiled: November 1, 2012Date of Patent: April 14, 2015Assignee: E l du Pont de Nemours and CompanyInventor: Konstantinos Kontomaris
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Publication number: 20150096312Abstract: 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: ApplicationFiled: March 29, 2013Publication date: April 9, 2015Inventor: Wissam Rached
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Patent number: 8999192Abstract: 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: GrantFiled: September 22, 2009Date of Patent: April 7, 2015Assignee: Solvay Specialty Polymers Italy S.p.A.Inventors: Pier Antonio Guarda, Gianfranco Spataro, Padmanabhan Srinivasan, Giuseppe Marchionni
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Patent number: 8999190Abstract: The invention provides a heat transfer composition comprising R-1234ze (E), R-32 and 1,1,1,2-tetrafluoroethane (R-134a).Type: GrantFiled: December 18, 2012Date of Patent: April 7, 2015Assignee: Mexichem Amanco Holding S.A. de C.V.Inventor: Robert E Low
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Patent number: 8999191Abstract: 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: GrantFiled: March 15, 2013Date of Patent: April 7, 2015Assignee: National Refrigerants, Inc.Inventor: Robert Yost
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Publication number: 20150089965Abstract: 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: December 5, 2014Publication date: April 2, 2015Inventors: Samuel F. Yana Motta, Mark W. Spatz, Ronald P. Vogl, Elizabet del Carmen Vera Becerra
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Publication number: 20150083957Abstract: 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: December 2, 2014Publication date: March 26, 2015Inventors: Barbara Haviland Minor, Velliyur Nott Mallikarjuna Rao
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Publication number: 20150075165Abstract: 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: ApplicationFiled: November 25, 2014Publication date: March 19, 2015Applicant: Mexichem Amanco Holding S.A. de C.V.Inventor: Robert E. Low
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Patent number: 8980118Abstract: 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: GrantFiled: February 8, 2013Date of Patent: March 17, 2015Assignee: 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: 20150068227Abstract: 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: ApplicationFiled: November 12, 2014Publication date: March 12, 2015Inventors: MARIO JOSEPH NAPPA, BARBARA HAVILAND MINOR, ALLEN CAPRON SIEVERT
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Patent number: 8974689Abstract: 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: GrantFiled: January 22, 2014Date of Patent: March 10, 2015Assignee: Asahi Glass Company, LimitedInventor: Masato Fukushima
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Patent number: 8974690Abstract: Compositions and methods based on the use of fluoroalkene containing from 3 to 4 carbon atoms and at least one carbon-carbon double bond, such as HFO-1214, HFO-HFO-1233, or HFO-1354, having properties highly beneficial in foaming and blowing agent applications, articles and methods.Type: GrantFiled: June 6, 2014Date of Patent: March 10, 2015Assignee: Honeywell International Inc.Inventors: Robert C. Johnson, Hsueh S. Tung, Rajiv R. Singh, Ian Shankland
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Patent number: 8974688Abstract: 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: GrantFiled: May 7, 2010Date of Patent: March 10, 2015Assignee: Honeywell International Inc.Inventors: Samuel F. Yana Motta, Mark W. Spatz, Rajiv Ratna Singh, Robert Gerard Richard, Elizabet del Carmen Vera Becerra, Daniel Burger
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Publication number: 20150065585Abstract: 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: ApplicationFiled: November 11, 2014Publication date: March 5, 2015Inventors: RAJIV R. SINGH, HANG T. PHAM, GARY M. KNOPECK
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Patent number: 8961811Abstract: 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: GrantFiled: April 14, 2011Date of Patent: February 24, 2015Assignee: E I du Pont de Nemours and CompanyInventors: Barbara Haviland Minor, Robert L. Waterland
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Patent number: 8961808Abstract: 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: GrantFiled: October 19, 2012Date of Patent: February 24, 2015Assignee: E I du Pont de Nemours and CompanyInventor: Mark L Robin