Gaseous Or Gas-containing Patents (Class 252/571)
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Patent number: 11015840Abstract: An object of the present invention is to provide, as a working fluid to be used for a heat cycle system, a working fluid for heat cycle that has cycle performance replaceable with that of R410A, and at the same time, has a small burden on an apparatus, low flammability, suppressed self-decomposition, and less effect on global warming, and therefore, is usable stably even if leaked, a composition for heat cycle system containing the same, and a heat cycle system using the composition. The working fluid for heat cycle contains trifluoroethylene, difluoromethane, and at least one selected from 1,1-difluoroethane, fluoroethane, propane, propylene, carbon dioxide, 2,3,3,3-tetrafluoropropene, and (E)-1,3,3,3-tetrafluoropropene at mass ratios satisfying predetermined expressions and at a ratio of the total content to be 90 to 100 mass % relative to the total amount of the working fluid and has a temperature glide of 10° C. or less.Type: GrantFiled: March 5, 2019Date of Patent: May 25, 2021Assignee: AGC Inc.Inventors: Hikaru Ono, Katsuya Ueno, Tetsuo Otsuka
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Patent number: 10829253Abstract: A method for increasing the dielectric withstand strength in the enclosure E of an electrical apparatus, this method consisting in placing in the enclosure a dielectric material in liquid or solid form, then in bringing this material to a temperature and/or a pressure allowing for its total or partial evaporation in the enclosure. This method includes a device for retaining the abovementioned material in its container during the handling allowing the placement of the container in the enclosure E, and a device for inducing the evaporation of this material at a certain moment after this placement in the enclosure E and for allowing the dispersion of the gases resulting from this evaporation in the enclosure E.Type: GrantFiled: March 8, 2017Date of Patent: November 10, 2020Assignee: Scheider Electric Industries SASInventors: Francois Gentils, Romain Maladen, Rainer Stein
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Medium- or high-voltage electrical appliance having a low environmental impact and hybrid insulation
Patent number: 9899125Abstract: The present invention relates to medium- or high-voltage equipment having low environmental impact, including a leaktight enclosure in which there are located electrical components covered with a solid dielectric layer of varying thickness and a gaseous medium for providing electrical insulation and/or for extinguishing electric arcs that are likely to occur in said enclosure, and that comprises heptafluoroisobutyronitrile in a mixture with a dilution gas.Type: GrantFiled: September 9, 2013Date of Patent: February 20, 2018Assignee: ALSTOM TECHNOLOGY LTDInventors: Yannick Kieffel, Alain Girodet, Jacques Porte -
Patent number: 9837801Abstract: The present invention provides medium- or high-voltage equipment including a leaktight enclosure in which there are located electrical components and a gas mixture for providing electrical insulation and/or for extinguishing electric arcs that are likely to occur in said enclosure, the gas mixture comprising heptafluoroisobutyronitrile, carbon dioxide, and oxygen in small quantities. Electrical components covered in a solid dielectric layer of varying thickness are located inside said leaktight enclosure of the equipment of the invention.Type: GrantFiled: September 17, 2014Date of Patent: December 5, 2017Assignee: ALSTOM TECHNOLOGY LTDInventors: Yannick Kieffel, Alain Girodet, Christophe Creusot, Jacques Porte
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Patent number: 9257213Abstract: A dielectric insulation medium including sulphur hexafluoride (SF6) and/or tetrafluoro methane (CF4), in a mixture with at least one further component being an at least partially fluorinated fluoroketone.Type: GrantFiled: February 15, 2013Date of Patent: February 9, 2016Assignee: ABB TECHNOLOGY AGInventors: Mathias Ingold, Thomas Alfred Paul, Javier Mantilla, Oliver Cossalter, Judith Kessler, Navid Mahdizadeh
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Publication number: 20150083979Abstract: An electrical device containing a dielectric fluid, the dielectric fluid comprising heptafluoroisobutyronitrile or 2,3,3,3-tetrafluoro-2-(trifluoromethoxy) propanenitrile.Type: ApplicationFiled: March 15, 2013Publication date: March 26, 2015Inventors: Michael G. Costello, Richard M. Flynn, Michael J. Bulinski
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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
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Publication number: 20150028246Abstract: Disclosed are compositions comprising HCFC-243db, HCFO-1233xf, HCFC-244db and/or HFO-1234yf and at least one additional compound. For the composition comprising 1234yf, the additional compound is selected from the group consisting of HFO-1234ze, HFO-1243zf, HCFC-243db, HCFC-244db, HFC-245cb, HFC-245fa, HCFO-1233xf, HCFO-1233zd, HCFC-253fb, HCFC-234ab, HCFC-243fa, ethylene, HFC-23, CFC-13, HFC-143a, HFC-152a, HFC-236fa, HCO-1130, HCO-1130a, HFO-1336, HCFC-133a, HCFC-254fb, HCFC-1131, HFO-1141, HCFO-1242zf, HCFO-1223xd, HCFC-233ab, HCFC-226ba, and HFC-227ca. Compositions comprising HCFC-243db, HCFO-1233xf, and/or HCFC-244db are useful in processes to make HFO-1234yf. Compositions comprising HFO-1234yf are useful, among other uses, as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.Type: ApplicationFiled: October 1, 2014Publication date: January 29, 2015Inventors: BARRY ASHER MAHLER, MARIO JOSEPH NAPPA
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Publication number: 20150014606Abstract: Azeotrope-like compositions are disclosed. The azeotrope-like compositions are mixtures of Z-1,1,1,4,4,4-hexafluoro-2-butene and E-1,1,1,4,4,4-hexafluoro-2-butene. 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: ApplicationFiled: February 14, 2013Publication date: January 15, 2015Inventors: Mark L. Robin, Joseph Anthony Creazzo, Gary Loh
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Publication number: 20140305667Abstract: 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: ApplicationFiled: October 19, 2012Publication date: October 16, 2014Applicant: EI DU PONT DE NEMOURS AND COMPANYInventor: Mark L Robin
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Patent number: 8852466Abstract: The present invention relates to switchgear for breaking a medium- or high-voltage electric current, which switchgear comprises a leaktight enclosure in which electrical components are found as well as a gaseous medium for extinguishing the electric arcs likely to occur in said enclosure, and which switchgear is characterized in that: the gaseous medium comprises at least one fluoroketone alone or in a mixture with at least one gas that does not form part of the fluoroketone family; the fluoroketone is present in the enclosure in part in the liquid state and in part in the gaseous state; and in that the enclosure further comprises means for absorbing molecular species that form after the ionization experienced by said fluoroketone during arcing. The invention also relates to a method of manufacturing said switchgear.Type: GrantFiled: September 20, 2011Date of Patent: October 7, 2014Assignee: Schneider Electric Energy FranceInventors: Yannick Kieffel, Daniel Piccoz, Alain Girodet
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Patent number: 8795556Abstract: A hybrid photo-patternable dielectric material is provided that has dual-tone properties with a parabola like dissolution response to radiation. In one embodiment, the hybrid photo-patternable dielectric material includes a composition of at least one positive-tone component including a positive-tone polymer, positive-tone copolymer, or blends of positive-tone polymers and/or positive-tone copolymers having one or more acid sensitive positive-tone functional groups; at least one negative-tone component including a negative-tone polymer, negative-tone copolymer, or blends of negative-tone polymers and/or negative-tone copolymers having one or more acid sensitive negative-tone functional groups; at least one photoacid generator; and at least one solvent that is compatible with the positive-tone and negative-tone components.Type: GrantFiled: April 24, 2012Date of Patent: August 5, 2014Assignee: International Business Machines CorporationInventor: Qinghuang Lin
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Patent number: 8790553Abstract: The present invention relates to a composition suitable for use in electrical equipment containing a dielectric fluid including an oil component, the oil component including one or both of crambe oil and high erucic acid rapeseed oil and one or both of esterified crambe oil and esterified high erucic acid rapeseed oil.Type: GrantFiled: July 2, 2010Date of Patent: July 29, 2014Assignee: 3M Innovative Properties CompanyInventors: Jose Humberto Lopes, David V. Mahoney, Rafael Garcia-Ramirez
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Publication number: 20140190726Abstract: The invention relates to the use of a mixture comprising decafluoro-2-methylbutan-3-one and a carrier gas or dilution gas as a medium for electrical insulation and/or for extinction of electric arcs in a medium- or high-voltage electrical device. It also relates to a medium- or high-voltage electrical device in which electrical insulation and/or extinction of electric arcs is/are implemented by a mixture comprising decafluoro-2-methylbutan-3-one and a carrier gas or dilution gas. Applications: electrical transformers, gas-insulated lines for transporting or distributing electricity, set of busbars, electrical connection/disconnection devices (circuit breakers, switches, switch-fuse sets, disconnectors, earthing switches, contactors, etc.).Type: ApplicationFiled: May 24, 2012Publication date: July 10, 2014Applicant: SCHNEIDER ELECTRIC INDUSTRIES SASInventors: Yannick Kieffel, Alain Girodet, Daniel Piccoz
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Publication number: 20140175341Abstract: A dielectric insulation medium. The insulation medium is characterized in that it comprises a fluoroketone having from 4 to 12 carbon atoms.Type: ApplicationFiled: February 27, 2014Publication date: June 26, 2014Inventors: Max-Steffen Claessens, Per Skarby
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Patent number: 8753549Abstract: The disclosure is directed to a thermally-stable dielectric fluid. The dielectric fluid includes (a) an oil, (b) a substituted, hindered phenolic antioxidant having at least two substituted cresol groups being covalently bonded to each other through a methylene bridge, and (c) a substituted, diphenyl amine antioxidant having at least two substituted phenyl groups being covalently bonded to each other through an amine bridge.Type: GrantFiled: September 15, 2011Date of Patent: June 17, 2014Assignee: Dow Global Technologies LLCInventors: Suh Joon Han, Dale C. Schmidt, Christopher J. Tucker
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Patent number: 8709303Abstract: A dielectric insulation medium including a hydrofluoro monoether, the hydrofluoro monoether containing at least three carbon atoms. The insulation medium according has high insulation capabilities, in particular a high dielectric strength, and at the same time a low GWP. The invention further includes an insulation medium which is chemically and thermally stable also at temperatures above 140° C., which is non-toxic or has a low toxicity level, and which in addition is non-corrosive and non-explosive.Type: GrantFiled: June 14, 2013Date of Patent: April 29, 2014Assignee: ABB Research Ltd.Inventors: Navid Mahdizadeh, Thomas Alfred Paul, Judith Kessler, Markus Bujotzek, Patrick Stoller, Max-Steffen Claessens, Per Skarby
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Patent number: 8623233Abstract: Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of Z-1,1,1,4,4,4-hexafluoro-2-butene, trans-1,2-dichloroethylene and 1,1,1,3,3-pentafluorobutane. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as dielectrics.Type: GrantFiled: January 10, 2011Date of Patent: January 7, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Mark L. Robin, Joan Ellen Bartelt
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Patent number: 8580160Abstract: The disclosure is directed to a dielectric fluid. The dielectric fluid includes an algae oil. The algae oil includes a natural algae antioxidant. The natural algae antioxidant is selected from ?-carotene, astaxanthin, tocopherol, polyunsaturated triglycerides, and combinations thereof.Type: GrantFiled: December 23, 2010Date of Patent: November 12, 2013Assignee: Dow Global Technologies LLCInventors: Suh Joon Han, Dirk B. Zinkweg, Jeffrey M. Cogen, Steve Gluck
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Publication number: 20130292614Abstract: An electrical device containing as a component a C3 to C15 fluorooxirane fluid dielectric is provided.Type: ApplicationFiled: January 18, 2012Publication date: November 7, 2013Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Phillip E. Tuma, Richard M. Minday, Zhongxing Zhang, Michael G. Costello, Richard M. Flynn, John G. Owens, Michael J. Bulinski
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Publication number: 20130277334Abstract: A dielectric insulation medium including a fluoroketone containing 5 carbon atoms, in a mixture with a dielectric insulation gas component different from the fluoroketone, in particular air or an air component, the dielectric insulation medium, in particular the dielectric insulation gas, having a non-linearly increased dielectric strength that is larger than a sum of dielectric strengths of the gas components of the dielectric insulation medium.Type: ApplicationFiled: June 14, 2013Publication date: October 24, 2013Inventors: Javier Mantilla, Max-Steffen Claessens, Nicola Gariboldi, Stephan Grob, Per Skarby, Thomas Alfred Paul, Navid Mahdizadeh
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Publication number: 20130265692Abstract: A dielectric insulation medium including a hydrofluoro monoether, the hydrofluoro monoether containing at least three carbon atoms. The insulation medium according has high insulation capabilities, in particular a high dielectric strength, and at the same time a low GWP. The invention further includes an insulation medium which is chemically and thermally stable also at temperatures above 140° C., which is non-toxic or has a low toxicity level, and which in addition is non-corrosive and non-explosive.Type: ApplicationFiled: June 14, 2013Publication date: October 10, 2013Inventors: Navid Mahdizadeh, Thomas Alfred Paul, Judith Marold, Markus Bujotzek, Patrick Stoller, Max-Steffen Claessens, Per Skarby
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Publication number: 20130221292Abstract: A dielectric insulation medium including sulphur hexafluoride (SF6) and/or tetrafluoro methane (CF4), in a mixture with at least one further component being an at least partially fluorinated fluoroketone.Type: ApplicationFiled: February 15, 2013Publication date: August 29, 2013Inventors: Mathias Ingold, Thomas Alfred Paul, Javier Mantilla, Oliver Cossalter, Judith Kessler, Navid Mahdizadeh
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Patent number: 8440116Abstract: Disclosed herein are a dielectric fluid composition and a method thereof. Also disclosed are viscosity modifiers and a method of lowering the viscosity of an oil-based dielectric fluid. The composition includes an oil with a high mono-unsaturated fatty acid content and one or more fatty acid alkyl esters, each having a fatty acid and an alkyl moiety, wherein the alkyl moiety of the fatty acid alkyl esters has 1 to 4 carbon atoms, and wherein both the oil and the fatty acid alkyl ester are in the range of 40%-60% v/v of the dielectric fluid composition. The viscosity modifier includes one or more fatty acid alkyl esters with an alkyl moiety and a fatty acid moiety, wherein the alkyl moiety has 1 to 4 carbon atoms. The method of lowering the viscosity includes blending the viscosity modifier and a vegetable oil-based dielectric fluid in a ratio of 40:60-60:40.Type: GrantFiled: April 11, 2008Date of Patent: May 14, 2013Inventors: Mohammed Amanullah, Syed M. Islam, Samer Chami, Gary Ienco
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Publication number: 20130068989Abstract: Disclosed are compositions comprising HFC-245eb and at least one additional compound selected from the group consisting of HFO-1234ze, HFC-245fa, HFC-236cb, HFC-236ea, HFC-236fa, HFC-227ea, HFC-227ca, HFO-1225yc, HFO-1225zc, HFO-1225ye, methane, ethane, propane, HFC-23, HFC-143a, HFC-134, HFC-134a, FC-1216, HFO-1234yf, HFC-254eb, HFO-1243zf, and HFC-254fb. Compositions comprising HFC-245eb are useful in processes to make HFO-1234yf. Also disclosed are compositions comprising HFO-1234yf and at least one additional compound selected from the group consisting of HFO-1234ze, HFC-254eb, HFC-254fb, HFO-1243zf, HFCHFC-245eb, HFC-245fa, HFC-245cb, HFC-236cb, HFC-236ea, HFC-236fa, HFC-227ea, HFC-227ca, HFO-1225yc, HFO-1225zc, HFO-1225ye, methane, ethane, propane, HFC-23, HFC-134, HFC-134a, HFO-1132a and FC-1216. Compositions comprising HFO-1234yf are useful as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.Type: ApplicationFiled: November 14, 2012Publication date: March 21, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventor: E I DU PONT DE NEMOURS AND COMPANY
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Patent number: 8323523Abstract: A method of bevel edge processing a semiconductor in a bevel plasma processing chamber in which the semiconductor substrate is supported on a semiconductor substrate support is provided. The method comprises evacuating the bevel etcher to a pressure of 3 to 100 Torr and maintaining RF voltage under a threshold value; flowing a process gas into the bevel plasma processing chamber; energizing the process gas into a plasma at a periphery of the semiconductor substrate; and bevel processing the semiconductor substrate with the plasma.Type: GrantFiled: May 11, 2011Date of Patent: December 4, 2012Assignee: Lam Research CorporationInventors: Tong Fang, Yunsang S. Kim, Andreas Fischer
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Patent number: 8318041Abstract: The present invention relates to a stable sediment dispersion which can be used above all as electrorheological (ERF) and/or magnetorheological fluid (MRF), a method for production thereof and also use thereof.Type: GrantFiled: April 20, 2007Date of Patent: November 27, 2012Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.Inventors: Jochen Uebe, Erich Seider, Silvia Gaul, Holger Bose
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Publication number: 20120280189Abstract: A gaseous dielectric comprising a perfluoroketone of the formula Rf1—CO—Rf2, wherein each of Rf1 and Rf2 are perfluoroaliphatic groups, and use thereof in electrical devices, is described.Type: ApplicationFiled: January 19, 2011Publication date: November 8, 2012Inventors: Karl J. Warren, Phillip E. Tuma, John G. Owens, Richard M. Minday
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Publication number: 20120240477Abstract: The present disclosure relates to compositions comprising 2,3,3,3-tetrafluoropropene that may be useful as heat transfer compositions, aerosol propellants, foaming agents, blowing agents, solvents, cleaning agents, carrier fluids, displacement drying agents, buffing abrasion agents, polymerization media, expansion agents for polyolefins and polyurethane, gaseous dielectrics, extinguishing agents, and fire suppression agents in liquid or gaseous form. Additionally, the present disclosure relates to compositions comprising 1,1,2,3-tetrachloropropene, 2-chloro-3,3,3-trifluoropropene, or 2-chloro-1,1,1,2-tetrafluoropropane, which may be useful in processes to produce 2,3,3,3-tetrafluoropropene.Type: ApplicationFiled: December 22, 2010Publication date: September 27, 2012Applicant: EI DU PONT DE NEMOURS AND COMPANYInventor: Mario Joseph Nappa
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Patent number: 8262924Abstract: Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of E-1,1,1,4,4,4-hexafluoro-2-butene with methyl formate, n-pentane, 2-methylbutane, trans-1,2-dichloroethylene, 1,1,1,3,3-pentafluoropropane, n-butane or isobutane. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions.Type: GrantFiled: May 20, 2011Date of Patent: September 11, 2012Assignee: E I du Pont de Nemours and CompanyInventor: Mark L. Robin
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Patent number: 8097187Abstract: A dielectric fluid comprising hydrocarbon liquid admixed with an ester-based compound, wherein the ester-based compound is present in an effective amount to impart breakdown inhibiting properties to a paper insulation material when the dielectric fluid is in contact with the paper material.Type: GrantFiled: September 23, 2010Date of Patent: January 17, 2012Assignee: Cooper Industries, Inc.Inventors: Kevin J. Rapp, Jerry L. Corkran, Gary A. Gauger, Charles Patrick McShane
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Publication number: 20110309715Abstract: A dielectric insulation medium. The insulation medium is characterized in that it comprises a fluoroketone having from 4 to 12 carbon atoms.Type: ApplicationFiled: July 22, 2011Publication date: December 22, 2011Inventors: Max-Steffen Claessens, Per Skarby
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Patent number: 8080185Abstract: A dielectric gaseous compound which exhibits the following properties: a boiling point in the range between about ?20° C. to about ?273° C.; non-ozone depleting; a GWP less than about 22,200; chemical stability, as measured by a negative standard enthalpy of formation (dHf<0); a toxicity level such that when the dielectric gas leaks, the effective diluted concentration does not exceed its PEL; and a dielectric strength greater than air.Type: GrantFiled: August 30, 2010Date of Patent: December 20, 2011Assignee: Honeywell International Inc.Inventors: Matthew H. Luly, Robert G. Richard
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Publication number: 20110240903Abstract: Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of Z-1,1,1,4,4,4-hexafluoro-2-butene with methyl formate, pentane, 2-methylbutane, 1,1,1,3,3-pentafluorobutane, trans-1,2-dichloroethylene, 1,1,1,3,3-pentafluoropropane, dimethoxymethane, or cyclopentane. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media.Type: ApplicationFiled: May 24, 2011Publication date: October 6, 2011Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: MARK L. ROBIN
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Publication number: 20110220832Abstract: Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of E-1,1,1,4,4,4-hexafluoro-2-butene with methyl formate, n-pentane, 2-methylbutane, trans-1,2-dichloroethylene, 1,1,1,3,3-pentafluoropropane, n-butane or isobutane. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions.Type: ApplicationFiled: May 20, 2011Publication date: September 15, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventor: Mark L. Robin
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Patent number: 7985355Abstract: A method for suppressing an electric arc or corona discharge includes providing a device capable of storing, transmitting, or generating an electrical current or field; and enveloping at least a portion of said device with a dielectric gas consisting essentially of: sulfur hexafluoride; a second component selected from the group consisting of nitrous oxide; carbon dioxide; trifluoromethane (R32); trifluoroiodomethane; octafluoropropane (R218); 1,1,1,2,2-pentafluoroethane (R125); propane (R290); 1,1,1,2-tetrafluoropropene (HFO-1234yf); 1,2,3,3-tetrafluoro-2-propene (HFO-1234yc); 1,1,3,3-tetrafluoro-2-propene (HFO-1234zc); 1,1,1,3-tetrafluoro-2-propene (HFO-1234ze); 1,1,2,3-tetrafluoro-2-propene (HFO-1234ye); 1,1,1,2,3-pentafluoropropene (HFO-1225ye); 1,1,2,3,3-pentafluoropropene (HFO-1225yc); 1,1,1,3,3-pentafluoropropene (HFO-1225zc); (Z)1,1,1,3-tetrafluoropropene (HFO-1234zeZ); (Z)1,1,2,3-tetrafluoro-2-propene (HFO-1234yeZ); (E)1,1,1,3-tetrafluoropropene (HFO-1234zeE); (E)1,1,2,3-tetrafluoro-2-propene (HFO-12Type: GrantFiled: March 22, 2010Date of Patent: July 26, 2011Assignee: Honeywell International Inc.Inventors: Matthew H. Luly, Rajiv R. Singh, Robert G. Richard
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Publication number: 20110147638Abstract: Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of Z-1,1,1,4,4,4-hexafluoro-2-butene, trans-1,2-dichloroethylene and a third component. Also disclosed are compositions where the third component is cyclopentane, methanol, dimethyoxymethane, methyl formate or perfluoro ethyl isopropyl ketone. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media.Type: ApplicationFiled: June 25, 2010Publication date: June 23, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Mark L. Robin, Joan Ellen Bartelt
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Publication number: 20100320428Abstract: A dielectric gaseous compound which exhibits the following properties: a boiling point in the range between about ?20° C. to about ?273° C.; non-ozone depleting; a GWP less than about 22,200; chemical stability, as measured by a negative standard enthalpy of formation (dHf<0); a toxicity level such that when the dielectric gas leaks, the effective diluted concentration does not exceed its PEL; and a dielectric strength greater than air.Type: ApplicationFiled: August 30, 2010Publication date: December 23, 2010Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Matthew H. Luly, Robert G. Richard
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Patent number: 7815821Abstract: A dielectric fluid comprising hydrocarbon liquid admixed with an ester-based compound, wherein the ester-based compound is present in an effective amount to impart breakdown inhibiting properties to a paper insulation material when the dielectric fluid is in contact with the paper material.Type: GrantFiled: April 13, 2009Date of Patent: October 19, 2010Assignee: Cooper Industries, Inc.Inventors: Kevin J. Rapp, Jerry L. Corkran, Gary A. Gauger, Charles Patrick McShane
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Patent number: 7807074Abstract: A dielectric gaseous compound which exhibits the following properties: a boiling point in the range between about ?20° C. to about ?273° C.; low ozone depleting; a GWP less than about 22,200; chemical stability, as measured by a negative standard enthalpy of formation (dHf<0); a toxicity level such that when the dielectric gas leaks, the effective diluted concentration does not exceed its PEL; and a dielectric strength greater than air.Type: GrantFiled: December 12, 2006Date of Patent: October 5, 2010Assignee: Honeywell International Inc.Inventors: Matthew H. Luly, Robert G. Richard
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Publication number: 20100243943Abstract: Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of E-1,1,1,4,4,5,5,5-Octafluoro-2-pentene with methyl formate, n-pentane, 2-methylbutane, 1,1,1,3,3-pentafluorobutane, trans-1,2-dichloroethylene, 1,1,1,3,3-pentafluoropropane, dimethoxymethane, cyclopentane or Z-1,1,1,4,4,4-hexafluoro-2-butene. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotropic or azeotrope-like compositions as propellants. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media.Type: ApplicationFiled: September 5, 2008Publication date: September 30, 2010Inventor: Mark L. Robin
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Publication number: 20100171062Abstract: A method for suppressing an electric arc or corona discharge includes providing a device capable of storing, transmitting, or generating an electrical current or field; and enveloping at least a portion of said device with a dielectric gas consisting essentially of: sulfur hexafluoride; a second component selected from the group consisting of nitrous oxide; carbon dioxide; trifluoromethane (R32); trifluoroiodomethane; octafluoropropane (R218); 1,1,1,2,2-pentafluoroethane (R125); propane (R290); 1,1,1,2-tetrafluoropropene (HFO-1234yf); 1,2,3,3-tetrafluoro-2-propene (HFO-1234yc); 1,1,3,3-tetrafluoro-2-propene (HFO-1234zc); 1,1,1,3-tetrafluoro-2-propene (HFO-1234ze); 1,1,2,3-tetrafluoro-2-propene (HFO-1234ye); 1,1,1,2,3-pentafluoropropene (HFO-1225ye); 1,1,2,3,3-pentafluoropropene (HFO-1225yc); 1,1,1,3,3-pentafluoropropene (HFO-1225zc); (Z)1,1,1,3-tetrafluoropropene (HFO-1234zeZ); (Z)1,1,2,3-tetrafluoro-2-propene (HFO-1234yeZ); (E)1,1,1,3-tetrafluoropropene (HFO-1234zeE); (E)1,1,2,3-tetrafluoro-2-propene (HFO-12Type: ApplicationFiled: March 22, 2010Publication date: July 8, 2010Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Matthew H. Luly, Rajiv R. Singh, Robert G. Richard
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Publication number: 20100078585Abstract: Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of Z-1,1,1,4,4,4-hexafluoro-2-butene with methyl formate, pentane, 2-methylbutane, 1,1,1,3,3-pentafluorobutane, trans-1,2-dichloroethylene, 1,1,1,3,3-pentafluoropropane, dimethoxymethane, or cyclopentane. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media.Type: ApplicationFiled: April 28, 2008Publication date: April 1, 2010Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventor: Mark Robin
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Publication number: 20090095717Abstract: Provided are novel azeotrope-like compositions of SF6 and N2O, as well as methods of using the same. Also provided are methods of using SF6 compositions, including azeotrope-like compositions, including a method for suppressing an electric arc or corona discharge and a method for flame suppression. Further provided are electrical devices using such SF6 compositions as a dielectric insulating gas and rigid closed-cell foams having such SF6 compositions within the cells, wherein the foam is both thermally and electrically insulative.Type: ApplicationFiled: October 12, 2007Publication date: April 16, 2009Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Matthew H. Luly, Rajiv R. Singh, Richard R. Robert
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Publication number: 20080135817Abstract: A dielectric gaseous compound which exhibits the following properties: a boiling point in the range between about ?20° C. to about ?273° C.; non-ozone depleting; a GWP less than about 22,200; chemical stability, as measured by a negative standard enthalpy of formation (dHf<0); a toxicity level such that when the dielectric gas leaks, the effective diluted concentration does not exceed its PEL; and a dielectric strength greater than air.Type: ApplicationFiled: December 12, 2006Publication date: June 12, 2008Inventors: Matthew H. Luly, Robert G. Richard
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Patent number: 7141188Abstract: The present invention provides a composition comprising: (a) dielectric material; and (b) porogen comprising at least two fused aromatic rings wherein each of the fused aromatic rings has at least one alkyl substituent thereon and a bond exists between at least two of the alkyl substituents on adjacent aromatic rings. Preferably, the dielectric material is a composition comprising (a) thermosetting component comprising (1) optionally monomer of Formula I as set forth below and (2) at least one oligomer or polymer of Formula II as set forth below where Q, G, h, I, I, and w are as set forth below and (b) porogen.Type: GrantFiled: May 30, 2002Date of Patent: November 28, 2006Assignee: Honeywell International Inc.Inventors: Bo Li, Nancy Iwamoto, Boris Korolev, Paul G. Apen, Kreisler Lau, John G. Sikonia, Ananth Naman, Amauel Gebrebrhan, Nassrin Sleiman, Ruslan Zherebin
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Publication number: 20040118819Abstract: The invention relates to a process gas for use during laser welding of nonferrous metallic workpieces with a laser beam focussed onto the workpiece to be welded and a laser diode as the laser beam source. According to the invention, the process gas contains at least carbon dioxide and/or oxygen. The process gas can, in addition to carbon dioxide and/or oxygen, also contain argon, nitrogen, helium and/or other precious gases.Type: ApplicationFiled: September 8, 2003Publication date: June 24, 2004Inventor: Wolfgang Danzer
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Patent number: 6673259Abstract: Disclosed are azeotrope-like compositions comprising 1,1,1,3,3-pentafluoropropane and at least one C3 or C4 hydrocarbon, and optionally water, said compositions are environmentally desirable for use as refrigerants, aerosol propellants, metered dose inhalers, blowing agents for polymer foam, heat transfer media, and gaseous dielectrics.Type: GrantFiled: April 12, 2002Date of Patent: January 6, 2004Assignee: Honeywell International Inc.Inventors: Kane D. Cook, Rajiv R. Singh, Gary M. Knopeck, Mary C. Bogdan, Hang T. Pham, Leslie Bement, David J. Williams, James M. Bowman
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Patent number: 6632970Abstract: The present invention deals with the catalytic hydrogenation of fluid used to cool and dielectrically insulate an x-ray generating device within an x-ray system. According to the present invention, a method and apparatus are provided for hydrogenating fluid that has been exposed to x-rays to reduce the amount of H2 gas, free hydrogen atoms and unsaturated molecules in the fluid. The method comprises exposing the fluid within the x-ray system to a catalytically effective amount of catalyst. The catalyst operates in temperatures in the range of about 10-300° C. and pressures in the range of about 0.1-30 atmospheres. The catalyst may comprise a solid, non-soluble catalyst, a soluble catalyst, or a combination of both. A suitable solid, non-soluble catalyst comprises Group VIII elements and their compounds. Group VIII elements comprise iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium and platinum.Type: GrantFiled: December 29, 1999Date of Patent: October 14, 2003Assignee: General Electric CompanyInventor: Robert J. Lyons
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Publication number: 20030164479Abstract: The present invention comprises a mixture of hydrocarbons having a well-defined chemical composition that is suitable for use as a dielectric coolant in electrical equipment in general, and specifically in transformers. The dielectric coolants of the present invention are particularly suited for use in sealed, non-vented transformers, and have improved performance characteristics, including decreased degradation of the paper insulating layers, as well as a greater degree of safety and environmental acceptability. The present dielectric coolants comprise relatively pure blends of compounds selected from the group consisting of aromatic hydrocarbons, polyalphaolefins, polyol esters, and natural vegetable oils, along with additives to improve pour point, increase stability and reduce oxidation rate.Type: ApplicationFiled: November 25, 2002Publication date: September 4, 2003Applicant: Cooper Industries, Inc., a Texas corporationInventors: Gary L. Goedde, Gary A. Gauger, John Lapp, Alan P. Yerges