With Lubricants, Or Warning, Stabilizing Or Anti-corrosion Agents Or Persistent Gases Patents (Class 252/68)
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Publication number: 20140083119Abstract: A composition including 2,4,4,4-10-tetrafluorobut-1-ene and cis-1,1,1,4,4,4-hexafluorobut-2-ene, and also the use thereof in particular as a heat transfer fluid. The composition may include: from 1% to 99% of 2,4,4,4-tetrafluorobut-1-ene and from 1% to 99% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 5% to 70% of 2,4,4,4-tetrafluorobut-1-ene and from 30% to 95% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 20% to 65% of 2,4,4,4-tetrafluorobut-1-ene and from 35% to 80% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 25% to 60% of 2,4,4,4-tetrafluorobut-1-ene and from 40% to 75% of cis-1,1,1,4,4,4-hexafluorobut-2-ene; preferably from 28% to 51% of 2,4,4,4-tetrafluorobut-1-ene and from 49% to 72% of cis-1,1,1,4,4,4-hexafluorobut-2-ene.Type: ApplicationFiled: May 15, 2012Publication date: March 27, 2014Applicant: Arkema FranceInventor: Wissam Rached
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Publication number: 20140077124Abstract: 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 19, 2013Publication date: March 20, 2014Applicant: HONEYWELL INTERNATIONAL INC.Inventors: RAJIV R. SINGH, Hang T. Pham, Gary M. Knopeck
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Publication number: 20140075969Abstract: The invention relates to the use of 1,1,1,2-tetrafluoroethane for increasing the miscibility of 2,3,3,3-tetrafluoropropene with a lubricating oil, and in particular with a polyalkylene glycol oil. In this regard, the invention provides heat-transfer compositions and also equipment and processes using these compositions.Type: ApplicationFiled: March 28, 2012Publication date: March 20, 2014Applicant: ARKEMA FRANCEInventors: Sophie Guerin, Laurent Abbas, Wissam Rached
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Patent number: 8673169Abstract: A lubricating oil composition for refrigerator is provided by adding base oil with biphenols selected from 4,4?-methylenebis(2,6-di-t-butyl-phenol), 2?2-methylenebis(4-methyl-6-t-butylphenol), 2,2?-methylenebis(4-ethyl-6-t-butylphenol) and 4,4?-butylidenebis(3-methyl-6-t-butylphenol).Type: GrantFiled: March 6, 2009Date of Patent: March 18, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Tokue Sato, Masato Kaneko, Harutomo Ikeda
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Publication number: 20140070129Abstract: The present invention relates to non-flammable compositions comprising chlorotrifluoropropene with reduced risk of flammability which are useful as refrigerants, heat transfer fluids, solvents, cleaners, blowing agents, aerosols, extraction fluids, and the like.Type: ApplicationFiled: May 17, 2012Publication date: March 13, 2014Applicant: Arkema Inc.Inventors: Debra H. Kennoy, Brett L. Van Horn, Benjamin Bin Chen, Philippe Bonnet
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Patent number: 8663494Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be a terpene, terpenoid or fullerene; or a mixture of a terpene, terpenoid or fullerene with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: GrantFiled: December 14, 2011Date of Patent: March 4, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Jon Lee Howell, Velliyur Nott Mallikarjuna Rao, Thomas J. Leck, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C. Mouli, Ekaterina N. Swearingen, Andrew Edward Feiring
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Publication number: 20140047860Abstract: The present invention relates, in part, to heat transfer compositions and methods that include (a) from about 65% to about 75% by weight of HFC-32; (b) from about 15% to about 35% by weight of a compound selected from unsaturated —CF3 terminated propenes, unsaturated —CF3 terminated butenes, and combinations of these; and (c) from greater than about 0% to less than about 10% by weight of CO2, provided that the amount of component (c) is effective to improve heating capacity of the composition and reduce the defrost cycle in refrigerant applications, as compared to compositions lacking this component.Type: ApplicationFiled: March 14, 2013Publication date: February 20, 2014Applicant: HONEYWELL INTERNATIONAL INC.Inventors: MARK W. SPATZ, ANKIT SETHI, SAMUEL F. YANA MOTTA, ELIZABET DEL CARMEN VERA BECERRA
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Publication number: 20140020416Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: ApplicationFiled: August 15, 2013Publication date: January 23, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Andrew Edward Feiring, Viacheslav A. Petrov, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C Mouli, Thomas Joseph Leck, Jon Lee Howell
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Publication number: 20140024575Abstract: A composition based on 3,3,3-trifluoropropene and ammonia, and to the use thereof, especially as a heat transfer fluid. A heat-transfer composition including the composition based on 3,3,3-trifluoropropene and ammonia and also one or more additives chosen from lubricants, stabilizers, surfactants, tracers, fluorescers, odorant agents and solubilizers, and mixtures thereof. A process for heating or cooling a fluid or a body by means of a vapor compression circuit containing a heat-transfer fluid, said process successively including evaporation of the heat-transfer fluid, compression of the heat-transfer fluid, condensation of the heat fluid and depressurization of the heat-transfer fluid, in which the heat-transfer fluid is a composition based on 3,3,3-trifluoropropene and ammonia.Type: ApplicationFiled: March 9, 2012Publication date: January 23, 2014Applicant: ARKEMA FRANCEInventors: Wissam Rached, Jean-Christophe Boutier
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Patent number: 8628681Abstract: A heat transfer composition comprising trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), carbon dioxide (R-744) and a third component selected from difluoromethane (R-32), 1,1-difluoroethane (R-152a), fluoroethane (R-161), 1,1,1,2-tetrafluoroethane (R-134a), propylene, propane and mixtures thereof.Type: GrantFiled: January 12, 2011Date of Patent: January 14, 2014Assignee: Mexichem Amanco Holding S.A. de C.V.Inventor: Robert E Low
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Publication number: 20140008565Abstract: A binary composition of 2,3,3,3-tetrafluoropropene and of ammonia, and also to the use thereof, in particular as a heat transfer fluid.Type: ApplicationFiled: September 11, 2013Publication date: January 9, 2014Applicant: ARKEMA FRANCEInventors: Wissam RACHED, Jean-Christophe Boutier
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Patent number: 8623808Abstract: Disclosed are compositions useful in a wide variety of applications, including heat transfer fluids which possess a highly desirable and unexpectedly superior combination of properties, and heat transfer systems and methods based on these fluids. The preferred heat transfer fluid comprises from about 1 to about 40 percent, on a weight basis, of carbon dioxide (CO2) and from about 99 to about 60 percent, on a weight basis, of a compound having the Formula I XCFzR3-z (I), where X is a C2 or a C3 unsaturated, substituted or unsubstituted, alkyl radical, each R is independently Cl, F, Br, I or H, and z is 1 to 3. A preferred compound of Formula I is tetrafluoropropene, particularly 1,1,1,3-tetrafluoropropene and/or 1,1,1,3-tetrafluoropropene.Type: GrantFiled: August 5, 2011Date of Patent: January 7, 2014Assignee: Honeywell International Inc.Inventors: Rajiv R. Singh, Hang T. Pham, Ian Shankland
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Patent number: 8623235Abstract: The present invention relates to fluorine free polymeric oil-return agents that increase the miscibility of lubricants such as mineral oils and/or oxygenated lubricants with refrigerants in order to improve oil return and system performance of refrigeration systems. It was discovered that fluorine free block copolymers having a block compatible with the oil phase, and at least one block compatible with the refrigerant phase can effectively compatibilize lubricating oils with HFC and HFO refrigerants.Type: GrantFiled: February 18, 2009Date of Patent: January 7, 2014Assignee: Arkema Inc.Inventors: Brett L. Van Horn, Christopher A. Bertelo, Scott C. Schmidt, Noah E. Macy, George J. Papakonstantopoulos
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Publication number: 20130327996Abstract: The present invention relates to compositions comprising flammable refrigerant, fire hazard-reducing agent, and optionally a lubricant suitable for use in a refrigeration or air conditioning apparatus. Further, the present invention relates to compositions comprising lubricant and fire hazard-reducing agent and methods for reducing flammability of flammable refrigerant, for delivering a fire hazard-reducing agent to a refrigeration or air conditioning apparatus, and for replacing a non-flammable refrigerant with a flammable refrigerant.Type: ApplicationFiled: August 14, 2013Publication date: December 12, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Thomas Joseph Leck, Howard S. Hammel
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Patent number: 8603354Abstract: Provided is a lubricating oil composition for a refrigerator which uses a base oil including as the main component at least one kind of oxygen-containing compounds selected from polyoxyalkylene glycols, polyvinyl ethers, copolymers of poly(oxy)alkylene glycols or monoethers thereof and polyvinyl ethers, polyol esters, and polycarbonates. The lubricating oil composition for a refrigerator is used for a refrigerator that uses, as a refrigerant, a fluorine-containing organic compound, which is a refrigerant applicable to current car air conditioner systems or the like and has a specific polar structure, and has favorable sealing property, a low coefficient of friction factor in a sliding part, and excellent stability as well as excellent compatibility with the refrigerant.Type: GrantFiled: December 9, 2011Date of Patent: December 10, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventor: Masato Kaneko
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Publication number: 20130325732Abstract: A heat transfer composition comprising trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), difiuoromethane (R-32) and 1,1-difluoroethane (R-152a).Type: ApplicationFiled: July 19, 2013Publication date: December 5, 2013Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.Inventor: Robert E. Low
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Publication number: 20130313469Abstract: Provided is a lubricating oil composition for a refrigerator which uses a base oil including as the main component at least one kind of oxygen-containing compounds selected from polyoxyalkylene glycols, polyvinyl ethers, copolymers of poly(oxy)alkylene glycols or monoethers thereof and polyvinyl ethers, polyol esters, and polycarbonates. The lubricating oil composition for a refrigerator is used for a refrigerator that uses, as a refrigerant, a fluorine-containing organic compound, which is a refrigerant applicable to current car air conditioner systems or the like and has a specific polar structure, and has favorable sealing property, a low coefficient of friction factor in a sliding part, and excellent stability as well as excellent compatibility with the refrigerant.Type: ApplicationFiled: August 6, 2013Publication date: November 28, 2013Inventor: Masato KANEKO
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Patent number: 8585919Abstract: The present invention is directed to a refrigerator oil composition comprising (a) at least one diester species having the following structure: wherein R1, R2, R3, and R4 are the same or independently selected from hydrocarbon groups having from 2 to 17 carbon atoms; and (b) a refrigerant.Type: GrantFiled: July 19, 2012Date of Patent: November 19, 2013Assignee: Chevron U.S.A. Inc.Inventors: David C. Kramer, Ravindra Shah, Stephen J. Miller, Saleh Elomari
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Publication number: 20130298581Abstract: Disclosed herein is a method for producing heating in a high temperature heat pump comprising condensing a vapor working fluid comprising Z-1,1,1,4,4,4-hexafluoro-2-butene, in a condenser, thereby producing a liquid working fluid. Also disclosed herein is a method of raising the maximum feasible condenser operating temperature in a high temperature heat pump apparatus comprising charging the high temperature heat pump with a working fluid comprising Z-1,1,1,4,4,4-hexafluoro-2-butene. Also disclosed herein is a composition comprising: (a) Z-1,1,1,4,4,4-hexafluoro-2-butene; (b) 2-chloropropane; and (c) at least one lubricant suitable for use at a temperature of at least about 150° C.; is wherein the 2-chloropropane is present in an amount effective to form an azeotrope or azeotrope-like combination with the Z-1,1,1,4,4,4-hexafluoro-2-butene. Also disclosed herein is a high temperature heat pump apparatus containing a working fluid comprising Z-1,1,1,4,4,4-hexafluoro-2-butene.Type: ApplicationFiled: January 31, 2012Publication date: November 14, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventor: Konstantinos Kontomaris
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Publication number: 20130299733Abstract: The invention relates to a composition including a polyol ester (POE) or PVE lubricant and a refrigerant F including 3,3,3-trifluoropropene. The invention also relates to the use of said composition for refrigeration, air-conditioning, and for heat pump.Type: ApplicationFiled: August 4, 2011Publication date: November 14, 2013Inventor: Beatrice Boussand
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Publication number: 20130283834Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be at least one phenol or a mixture of at least one phenol with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: ApplicationFiled: June 25, 2013Publication date: October 31, 2013Inventors: VELLIYUR NOTT MALLIKARJUNA RAO, Mario Joseph Nappa, Barbara Haviland Minor, Thomas Joseph Leck, Nandini C. Mouli
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Patent number: 8568608Abstract: This invention relates to the use of ionic liquids as lubricants in vapor compression systems for cooling or heating. This invention also relates to an apparatus for adjusting temperature that operates a vapor compression cycle.Type: GrantFiled: May 31, 2007Date of Patent: October 29, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Mark Brandon Shiflett, Akimichi Yokozeki
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Patent number: 8568609Abstract: A lubricating oil composition for refrigerator is formed by adding an organic compound that includes a double bond in the molecule such as ?-olefin or conjugated diene to a base oil. Capable of being stably used for a long time in the presence of oxygen, the lubricating oil composition for refrigerator according to the invention is suitable for an open-type car air-conditioner, an electric driven car air-conditioner, a gas heat pump, an air conditioning device, a refrigerator, a vending machine, a showcase, various hot-water supply systems or a heating/cooling system.Type: GrantFiled: November 20, 2008Date of Patent: October 29, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Tokue Sato, Masato Kaneko, Harutomo Ikeda
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Publication number: 20130264513Abstract: Phase change material microcapsules are obtained using a PMMA prepolymer and an organic-solvent free synthesis process. A polymer monomer and an initiator are subject to pre-polymerization in a water bath to form Polymethyl methacrylate (PMMA) prepolymer which is then prepared to be a stabilizer aqueous solution. A phase change material is added to the stabilizer aqueous solution and liquefied in advance, and stirred to form an emulsion by a homogenizing mixer. A starting agent, a cross-linking agent and a Polymethyl methacrylate methyl ester prepolymer are added to the emulsion containing the phase-change material. The emulsion is further stirred by the homogenizing mixer for micro-emulsification which then aggregates in water bath.Type: ApplicationFiled: April 9, 2012Publication date: October 10, 2013Applicant: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National DefenseInventors: Yi-Hsiuan Yu, Ping-Szu Tsai, Tsung-Hsien Tsai, Bao-Yann Lin, Ming-Hsiung Wei
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Publication number: 20130255284Abstract: The invention relates to a composition comprising (E)-1,1,1,4,4,4-hexafluorobat-2-ene as a mixture with at least one hydrocarbon, hydrofinorocarbon or fluoroolefin compound having a boiling point less than or equal to 42° C., and also to the use of this composition as a heat transfer fluid.Type: ApplicationFiled: November 8, 2011Publication date: October 3, 2013Applicant: Arkema FranceInventor: Wissam Rached
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Publication number: 20130256586Abstract: The present invention is directed to a refrigerator oil composition comprising (a) a triester species having the following structure: wherein R1, R2, R3, and R4 are the same or independently selected from hydrocarbon groups having from 2 to 20 carbon atoms and wherein “n” is an integer from 2 to 20; and (b) a refrigerant, wherein the refrigerant is a halohydrocarbon.Type: ApplicationFiled: August 25, 2011Publication date: October 3, 2013Inventors: David C. Kramer, Ravindra Shah, Stephen J. Miller, Saleh Elomari
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Publication number: 20130247602Abstract: The invention relates to a composition including 1,1,1,4,4,4-hexafluorobut-2-ene and 3,3,4,4,4-pentafluorobut-1-ene, as well as to use thereof, in particular as a heat transfer fluid.Type: ApplicationFiled: November 8, 2011Publication date: September 26, 2013Inventors: Jean-Christophe Boutier, Wissam Rached
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Patent number: 8541351Abstract: Provided herein are estolide compositions having high oxidative stability, said compositions comprising at least one compound of formula: in which n is an integer equal to or greater than 0; m is an integer equal to or greater than 1; R1, independently for each occurrence, is selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; R2 is selected from hydrogen and optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; and R3 and R4, independently for each occurrence, are selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched. Also provided herein are uses for the compositions and methods of preparing the same.Type: GrantFiled: December 5, 2012Date of Patent: September 24, 2013Assignee: Biosynthetic Technologies, LLCInventors: Travis Thompson, Jakob Bredsguard, Jeremy Forest
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Publication number: 20130246288Abstract: The invention relates to heat transfer agents and heat transfer compositions containing hydrocarbon lubricating oils and halogenated alkene heat transfer fluid that promote oil flow and provide for improved oil return. The heat transfer compositions are useful in various heat transfer systems such as refrigeration, cooling, air conditioning, chiller operations.Type: ApplicationFiled: April 30, 2013Publication date: September 19, 2013Applicant: Arkema Inc.Inventors: Brett L. Van Horn, Phillippe Bonnet, Benjamin Bin Chen, Maher Y. Elsheikh, Richard M. Crooker
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Patent number: 8535556Abstract: The present invention relates to compositions comprising iodotrifluoromethane and an effective amount of at least one stabilizer selected from the group consisting of hindered phenols, thiophosphates, butylated triphenylphosphorothionates, organo phosphates, phosphites, aryl alkyl ethers, terpenes, terpenoids, epoxides, fluorinated epoxides, oxetanes, ascorbic acid, thiols, lactones, thioethers, amines, nitromethane, alkylsilanes, benzophenone derivatives, aryl sulfides, divinyl terephalic acid, diphenyl terephalic acid, ionic liquids, and mixtures thereof. These stabilized iodotrifluoromethane compositions may be useful as working fluids in multiple applications including cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps.Type: GrantFiled: March 26, 2007Date of Patent: September 17, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Thomas J. Leck, Nandini C. Mouli, Jon Lee Howell, Velliyur Nott Mallikarjuna Rao, Andrew Edward Feiring, Viacheslav A. Petrov, Allen Capron Sievert, Mario Joseph Nappa, Barbara Haviland Minor, Ekaterina N. Swearingen, Schmitz Corneille, Deepak Perti
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Patent number: 8535557Abstract: The present invention relates to compositions comprising flammable refrigerant, fire hazard-reducing agent, and optionally a lubricant suitable for use in a refrigeration or air conditioning apparatus. Further, the present invention relates to compositions comprising lubricant and fire hazard-reducing agent and methods for reducing flammability of flammable refrigerant, for delivering a fire hazard-reducing agent to a refrigeration or air conditioning apparatus, and for replacing a non-flammable refrigerant with a flammable refrigerant.Type: GrantFiled: September 5, 2012Date of Patent: September 17, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Thomas Joseph Leck, Howard S Hammel, Nancy Lynn Tucker
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Patent number: 8535555Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be an epoxide, fluorinated epoxide or oxetane, or a mixture thereof with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: GrantFiled: August 31, 2007Date of Patent: September 17, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Andrew Edward Feiring, Viacheslav A. Petrov, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C. Mouli, Thomas J. Leck, Jon Lee Howell
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Publication number: 20130234061Abstract: Compositions including an activated oil blend are provided. An oil blend can comprise one or more oils having a long chain fatty acid, preferably an oleic acid or linoleic acid. An oil blend of the inventive subject matter can be activated in an open or closed vessel comprising a catalyst. Some preferred catalysts include copper, a polyamide such as Nylon, and stainless steel. The activated oil blend can be combined with, among other things, a fluid having molecules of sufficient polarity to complex with a fatty acid molecule of the activated oil blend.Type: ApplicationFiled: February 22, 2013Publication date: September 12, 2013Inventor: Bob Lee Davis
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Publication number: 20130234062Abstract: The present invention provides a highly stable HFO refrigerant composition for use in a vapor compression-type refrigeration system, having improved slidability for the sliding portions of the vapor compression-type refrigeration system. More specifically, the present invention provides an HFO refrigerant composition comprising at least one type of HFO refrigerant and a polymer of halogenated propene represented by C3HaFbClc (provided that a+b+c=6, a=an integer of 1 to 3, b=an integer of 3 to 5, and c=an integer of 0 to 1) that is an oligomer having a molecular weight of 200 to 900.Type: ApplicationFiled: November 29, 2011Publication date: September 12, 2013Applicant: Daikin Industries, Ltd.Inventors: Tatsumi Tsuchiya, Takashi Shibanuma
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Publication number: 20130234060Abstract: Compositions including a polar heat transfer fluid that was passed through a vessel containing a catalyst are disclosed. Preferred catalysts can comprise copper, polyamide, stainless steel, or a combination thereof. Compositions can also comprise one or more types of long chain fatty acids, preferably from food oils, and preferably fatty acids that have been activated by virtue of having been passed through a vessel comprising a catalyst.Type: ApplicationFiled: February 22, 2013Publication date: September 12, 2013Inventor: Bob Lee Davis
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Patent number: 8529786Abstract: The present disclosure relates to compositions comprising at least one fluoroolefin and an effective amount of a stabilizer comprising at least one phosphorus-containing compound selected from the group consisting of thiophosphates, butylated triphenylphosphorothionates, and organophosphates. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.Type: GrantFiled: August 31, 2007Date of Patent: September 10, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Thomas J. Leck, Nandini C. Mouli, Barbara Haviland Minor, Mario Joseph Nappa, Jon Lee Howell
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Publication number: 20130221262Abstract: The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.Type: ApplicationFiled: April 8, 2013Publication date: August 29, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventor: E I DU PONT DE NEMOURS AND COMPANY
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Patent number: 8518295Abstract: A polyol ester suitable for use as a lubricant or a lubricant base stock has a kinematic viscosity at 40° C. greater than or equal to 200 cSt and a viscosity index of greater than or equal to 100. The ester comprises the reaction product of (a) a polyhydric alcohol component comprising at least 50 mole % of penterythritol, and (b) a carboxylic acid component comprising: (i) at least one linear or branched monocarboxylic acid having 2 to 7 carbon atoms; (ii) at least one branched monocarboxylic acid having 8 to 15 carbon atoms; and (iii) at least one polycarboxylic acid having 2 to 8 carbon atoms; wherein the ratio of the number of acid groups derived from the monocarboxylic acid(s) (i) to the number of acid groups derived from the monocarboxylic acid(s) (ii) is between about 0.9 and about 1.1 and the number of acid groups derived from the polycarboxylic acid(s) (iii) is between about 15% and about 25% of the total number of acid groups derived from the carboxylic acids (i), (ii) and (iii).Type: GrantFiled: September 16, 2010Date of Patent: August 27, 2013Assignee: Chemtura CorporationInventors: Dale Carr, Jeffrey Hutter, Edward T. Hessell, Richard Kelley, Roberto Urrego
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Patent number: 8512592Abstract: Provided herein are dielectric fluids comprising at least one estolide compound of formula: in which n is an integer equal to or greater than 0; m is an integer equal to or greater than 1; R1, independently for each occurrence, is selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; R2 is selected from hydrogen and optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; and R3 and R4, independently for each occurrence, are selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched. Also provided herein are uses of dielectric fluids and electrical devices such as transformers that comprise a dielectric fluid comprising at least one estolide compound.Type: GrantFiled: July 19, 2012Date of Patent: August 20, 2013Assignee: Biosynthetic Technologies, LLCInventors: Jeremy Forest, Jakob Bredsguard, Travis Thompson
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Patent number: 8512591Abstract: A heat transfer composition comprising trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), difluoromethane (R-32) and 1,1-difluoroethane (R-152a).Type: GrantFiled: January 12, 2011Date of Patent: August 20, 2013Assignee: Mexichem Amanco Holding S.A. de C.V.Inventor: Robert E Low
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Publication number: 20130207022Abstract: Mixtures of select neopentyl polyol esters are found to be highly miscible with the refrigerant R-32 over a wide temperature range. Working fluids are provided comprising R-32 and a polyol ester lubricant composition having a kinematic viscosity at 40° C. of from 32 to 120 cSt, said lubricant composition comprising C5-10 alkylcarboxy esters di-pentaerythritol wherein at least 40 mol %, typically more, of the alkylcarboxylate groups of the alkylcarboxy esters are pentanoyl groups.Type: ApplicationFiled: February 14, 2013Publication date: August 15, 2013Applicant: CHEMTURA CORPORATIONInventors: Edward T. Hessell, Travis Benanti
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Publication number: 20130207024Abstract: The refrigerating machine oil of the invention includes an ester of a polyhydric alcohol and a fatty acid, wherein the molar ratio of C4-C6 fatty acid and C7-C9 branched fatty acid in the fatty acid is between 15:85 and 90:10, the C4-C6 fatty acid includes 2-methylpropanoic acid, and the ratio of the total C4-C6 fatty acid and C7-C9 branched fatty acid in the total fatty acids composing the ester is at least 20 mol %. The working fluid composition for a refrigerating machine according to the invention comprises the refrigerating machine oil, a difluoromethane refrigerant and/or an unsaturated fluorinated hydrocarbon refrigerant.Type: ApplicationFiled: August 5, 2011Publication date: August 15, 2013Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Katsuya Takigawa, Masanori Saito, Takeshi Okido, Kuniko Takahashi
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Publication number: 20130207023Abstract: Mixtures of select neopentyl polyol esters are found to be highly miscible with the refrigerant R-32 over a wide temperature range. Working fluids are provided comprising R-32 and a lubricant containing these select neopentyl polyol esters and having a kinematic viscosity at 40° C. of 32 cSt or higher. Specifically, the lubricant composition of the invention comprises a mixture of alkylcarboxy esters of neopentyl polyols, wherein at least 10 wt % of all neopentyl polyol esters are esters of pentaerythritol oligomers of 4 or more pentaerythritol monomer groups, and wherein a majority of the alkylcarboxylate groups of the alkylcarboxy esters of neopentyl polyols are pentanoyl groups wherein at least 15% of the pentanoyl groups are branched.Type: ApplicationFiled: February 14, 2013Publication date: August 15, 2013Applicant: CHEMTURA CORPORATIONInventors: Travis Benanti, Edward T. Hessell
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Publication number: 20130200294Abstract: Polyol ester lubricant compositions comprising predominately straight chain C5-10 alkylcarboxlate esters of neopentyl alcohols, for example, straight chain C5-10 alkylcarboxlate esters of one or more of trimethylol propane, pentaerythritol, di-pentaerythritol, tri-pentaerythritol or pentaerythritol oligomers, and working fluids comprising said lubricant compositions and a hydrocarbon refrigerant, suitable for heat transfer devices including refrigeration and air conditioning systems are provided. The polyol ester lubricant compositions have a kinematic viscosity at 40° C. of 22-125 cSt and a viscosity index of greater than 140, and are characterized by having very high lubricity, excellent load carrying properties and excellent low temperature properties.Type: ApplicationFiled: February 5, 2013Publication date: August 8, 2013Applicant: CHEMTURA CORPORATIONInventors: Dale D. Carr, Jeffrey A. Hutter, Richard Kelley, Roberto Urrego, Edward T. Hessell
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Publication number: 20130200295Abstract: Disclosed are working fluid compositions for heat transfer apparatuses, such as refrigeration systems, that include a refrigerant and an ester based lubricant. The working fluid may comprise ?50% by weight of the ester based lubricant composition and ?50% by weight of one or more refrigerant compounds. The ester based lubricant comprises an additive selected from the group consisting of: diaryl sulfides, arylalkyl sulfides, dialkyl sulfides, diaryl disulfides, arylalkyl disulfides, dialkyl disulfides, diaryl polysulfides, arylalkyl polysulfides, dialkyl polysulfides, dithiocarbamates, derivatives of 2-mercaptobenzothiazole, derivatives of 2,5-dimercapto-1,3,4-thiadiazole, and combinations thereof.Type: ApplicationFiled: March 15, 2013Publication date: August 8, 2013Applicant: EMERSON CLIMATE TECHNOLOGIES, INC.Inventor: Emerson Climate Technologies, Inc.
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Publication number: 20130193368Abstract: The invention provides a heat transfer composition comprising trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)), fluoroethane (R-161) and a third component selected from difluoromethane (R-32) and/or 1,1-difluoroethane (R-152a).Type: ApplicationFiled: February 15, 2011Publication date: August 1, 2013Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.Inventor: Robert E. Low
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Publication number: 20130193369Abstract: The invention provides a heat transfer composition comprising: (i) trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)); (ii) a second component selected from difluoromethane (R-32), propene (R-1270)propane (R290) and mixtures thereof; (iii) a third component selected from pentafluoroethane (R-125), 1,1,1,2-tetrafluoroethane (R-134a), and mixtures thereof; and optionally (iv) a fourth component selected from fluoroethane (R-161), 1,1-difluoroethane (R-152a) and mixtures thereof.Type: ApplicationFiled: June 24, 2011Publication date: August 1, 2013Applicant: Mexichem Amanco Holding C.V. de S.A.Inventor: Robert Elliott Low
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Publication number: 20130193327Abstract: The present invention relates to a water-soluble liquid composition and its use to detect leaks and/or as antifreeze for water-based circuits. The composition comprises at least one fluorescent product and at least one liquid miscible with water.Type: ApplicationFiled: March 15, 2011Publication date: August 1, 2013Inventor: Gabriele Berton
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Publication number: 20130186114Abstract: The invention relates to a composition comprising: a heat-transfer fluid comprising from 15% to 30% ammonia and from 70% to 85% 2,3,3,3-tetrafluoropropene; and a lubricant oil comprising a polyalkylene glycol. The invention also relates to the use of ammonia for increasing the miscibility of 2,3,3,3-tetrafluoropropene with the polyalkylene glycol, and vice versa.Type: ApplicationFiled: January 25, 2013Publication date: July 25, 2013Applicant: Arkema FranceInventors: Sophie Guerin, Wissam Rached
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Publication number: 20130187078Abstract: The invention provides a heat transfer composition consisting essentially of from about 60 to about 85% by weight of trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)) and from about 15 to about 40% by weight of fluoroethane (R-161). The invention also provides a heat transfer composition comprising R-1234ze(E), R-161 and 1,1,1,2-tetrafluoroethane (R-134a).Type: ApplicationFiled: February 14, 2011Publication date: July 25, 2013Applicant: MEXICHEM AMANCO HOLDING S.A. DE C.V.Inventor: Robert E. Low