B-, P-, S-, Se-, Or Te-containing Patents (Class 252/574)
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Patent number: 9447312Abstract: Green compositions and technologies are provided. In an embodiment, the present invention provides a method of providing dielectric fluids, heat transfer fluids or cooling fluids. The dielectric fluid, heat transfer fluid, or cooling fluid can comprise one or more by-product or co-product containing glyceride and fatty acid mixtures extracted from an ethanol process. In an embodiment, the present invention provides compositions of dielectric fluids, heat transfer fluids or cooling fluids. The dielectric fluid, heat transfer fluid, or cooling fluid can comprise one or more glyceride and fatty acid mixtures extracted from an ethanol process.Type: GrantFiled: April 20, 2015Date of Patent: September 20, 2016Inventor: Joan Lynch
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Patent number: 9028727Abstract: Dielectric fluids are provided, the dielectric fluids comprising a mixture of polyol esters derived from a reaction of a) a polyol comprising pentaerythritol, trimethylolpropane, neopentyl glycol, or combinations thereof, and b) a mixture of fatty acid esters derived from a high oleic soybean oil comprising fatty acid moieties, wherein the high oleic soybean oil has a C18:1 content of greater than 65% of the fatty acid moieties in the oil, and a combined C18:2 and C18:3 content of less than 20% of the fatty acid moieties in the oil. Also provided are electrical apparatuses comprising the dielectric fluids, and processes for preparing the mixtures of polyol esters.Type: GrantFiled: August 24, 2012Date of Patent: May 12, 2015Assignee: E I du Pont de Nemours and CompanyInventors: Weiming Qiu, Peter A Brown
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Publication number: 20140319434Abstract: A dielectric high purity vegetable oil—free from antioxidants and/or external additives to be used in electric equipment such as transformers, as isolating element and as cooling means and a method for obtaining the same in which the dielectric high purity vegetable oil—is obtained by means of the optimization of the bleaching steps—and deodorizing—from the Refining process—known as Modified Caustic Refining Long-Mix (RBD).Type: ApplicationFiled: July 10, 2014Publication date: October 30, 2014Inventors: Alberto José Pulido Sanchez, Carlos Manuel Urzua Hernandez, Sergio Francisco Cazares Mendez, Jerónimo R. Villarreal Rios, José Eulalio Contreras De Leon, David Apolinar Guerra Zubiaga
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Publication number: 20140231726Abstract: The present invention is a method for preventing copper sulfide generation in oil-filled electrical equipment having an inhibitor of copper sulfide generation in insulating oil, and the method is characterized in monitoring characteristics of said insulating oil and performing re-addition of said inhibitor at an appropriate moment in accordance with a result of said monitoring.Type: ApplicationFiled: November 30, 2011Publication date: August 21, 2014Applicant: Mitsubishi Electric CorporationInventors: Fukutaro Kato, Eiichi Nagao, Tsuyoshi Amimoto, Satoru Toyama, Kota Mizuno
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Patent number: 8654070Abstract: Electrophoretic particles including mother particles and a dispersant that covers the surface of the mother particles, the mother particles including a resin and a colorant, and the dispersant having a structure represented by the following Formula (1): wherein in Formula (1), R1 represents a dimethyl siloxane chain that comprises two or more dimethyl siloxane structures that are linked together, the dimethyl siloxane chain being optionally substituted by an organic group; R2 represents a hydrogen atom or a methyl group; Ar1 represents an organic group having an aromatic group; a represents an integer of from 8 to 88; b represents an integer of from 12 to 82; c represents an integer of from 0 to 30; f represents an integer of from 1 to 3; the total of a, b and c is 100; and the ratio of unit (b) in the dispersant having a structure represented by Formula (1) is about 50% by weight or less.Type: GrantFiled: March 15, 2010Date of Patent: February 18, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Nami Tokunaga, Jun Kawahara, Daisuke Nakayama, Yasuo Yamamoto, Hiroaki Moriyama
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Patent number: 8222457Abstract: A coordination compound of an element of the boron group, the production of the compound and methods of using the compound as an additive, stabilizer, catalyst, co-catalyst, activator for catalyst systems, conductivity improver, and electrolyte.Type: GrantFiled: November 19, 2007Date of Patent: July 17, 2012Assignee: Chemetall GmbHInventors: Wolfram Lerner, Jens Röder, Hannes Vitze, Matthias Wagner, Ulrich Wietelmann
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Patent number: 8114318Abstract: The present invention relates to electrolytes comprising tetracyanoborate and an organic cation as components of electrolytes in electrochemical and/or optoelectronic devices, in particular solar cells. This ionic liquid has low viscosity and can be used as electrolyte in the absence of a solvent. Importantly, the ionic liquid remains stable in solar cells even after prolonged thermal stress at 80° C. for 1000 hours. Photovoltaic conversion efficiency remained stable and keeping more than 90% of the initial value.Type: GrantFiled: February 13, 2007Date of Patent: February 14, 2012Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Daibin Kuang, Peng Wang, Shaik Mohammad Zakeeruddin, Michaël Graetzel
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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: 20110144061Abstract: Provided are a nanoparticle/dispersant complex having excellent dispersibility and long-term stability in a dispersion medium, a production method therefor, and a nanoparticle dispersion liquid and a nanoparticle/matrix-material complex which are colorless and transparent even at high concentrations. In the nanoparticle/dispersant complex, a nanoparticle is covered with a dispersant containing a heterocyclic cationic group and one of an oxo acid group containing a sulfur atom or a phosphorus atom and an anion moiety of the oxo acid group; in the nanoparticle dispersion liquid, the nanoparticle/dispersant complex is dispersed into a dispersion medium; in the nanoparticle/matrix-material complex, the nanoparticle/dispersant complex is dispersed into a matrix material; and the production method for a nanoparticle/dispersant complex comprises forming, under a presence of the dispersant, a nanoparticle covered with the dispersant from a nanoparticle precursor.Type: ApplicationFiled: July 27, 2009Publication date: June 16, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Jun Kato, Tetsushi Yamamoto
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Publication number: 20110043441Abstract: Electrophoretic particles including mother particles and a dispersant that covers the surface of the mother particles, the mother particles including a resin and a colorant, and the dispersant having a structure represented by the following Formula (1): wherein in Formula (1), R1 represents a dimethyl siloxane chain that comprises two or more dimethyl siloxane structures that are linked together, the dimethyl siloxane chain being optionally substituted by an organic group; R2 represents a hydrogen atom or a methyl group; Ar1 represents an organic group having an aromatic group; a represents an integer of from 8 to 88; b represents an integer of from 12 to 82; c represents an integer of from 0 to 30; f represents an integer of from 1 to 3; the total of a, b and c is 100; and the ratio of unit (b) in the dispersant having a structure represented by Formula (1) is about 50% by weight or less.Type: ApplicationFiled: March 15, 2010Publication date: February 24, 2011Applicant: FUJI XEROX CO., LTD.Inventors: Nami TOKUNAGA, Jun KAWAHARA, Daisuke NAKAYAMA, Yasuo YAMAMOTO, Hiroaki MORIYAMA
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Patent number: 7736529Abstract: 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: GrantFiled: October 12, 2007Date of Patent: June 15, 2010Assignee: Honeywell International IncInventors: Matthew H. Luly, Rajiv R. Singh, Robert G. Richard
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Publication number: 20100108956Abstract: An electromagnetic wave shielding material and a sheet using the same are described. Also described is a gel state electromagnetic wave shielding material including an ionic liquid, and fine particles capable of reflecting, suppressing or absorbing an electromagnetic wave suspended in the ionic liquid. The electromagnetic wave shielding material may provide both high electromagnetic interference shielding ability and flexibility when used in sheet form, and in some applications, may provide flame and heat resistance.Type: ApplicationFiled: March 13, 2008Publication date: May 6, 2010Inventors: Haruhiko Miyazawa, Haruyoshi Kakitani, Atsushi Toyota
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Publication number: 20100065792Abstract: The present invention belongs to the field of dielectric fluids for electric systems, it specifically relates to a biodegradable dielectric fluid that is highly resistant to oxidation consisting of an oil or a mixture of vegetable oils with a very high oleic acid content which substantially conserve all their natural tocopherols and containing a metal deactivator, as well as to its use for insulating and cooling electrical equipment.Type: ApplicationFiled: March 16, 2007Publication date: March 18, 2010Inventor: Jesus Izcara Zurro
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Publication number: 20090278096Abstract: A method of treating an electrically insulating oil, wherein the oil includes at least one reactive organic sulphur compound. A chemical agent causing a reaction with the reactive organic sulphur compound is added to the oil. The chemical agent includes an elementary halogen or a halogen compound.Type: ApplicationFiled: July 9, 2007Publication date: November 12, 2009Applicant: ABS Research Ltd.Inventors: Karin Gustafsson, Robert Leandersson
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Publication number: 20090152513Abstract: Polar molecules dominated electrorheological fluids mainly comprising a mixture of dispersed phase of solid particles and/or dispersing liquid medium. The dispersed phase solid particles, on the surface, or the liquid dispersing medium contain polar molecules or polar groups, the dipole moment of which is 0.5-10 deb and the size is between 0.1 nm and 0.8 nm. Dispersed phase solid particles are spherical or nearly spherical, of which the size is 10-300 nm and dielectric constant is higher than 50. The conductance rate of the liquid dispersing medium is lower than 10?8 S/m, and the dielectric constant is lower than 10. The PM-ER fluids possess the characteristics of high yield strength, high dynamic shear strength, low leakage current, the linear dependence of yield strength on electric field, and high yield strength at low electric field, etc. The yield strength improves to almost 100 times of that of ordinary ER fluids and reaches to more than 200 Kpa.Type: ApplicationFiled: December 15, 2008Publication date: June 18, 2009Applicant: INSTITUTE OF PHYSICS, CHINESE ACADEMY OF SCIENCESInventors: Kunquan Lu, Rong Shen, Xuezhao Wang
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Publication number: 20090001330Abstract: An electrical insulating oil composition is prepared from an isomerized base oil. The electrical insulating oil composition in one embodiment exhibits excellent sulphur corrosion protection property with a sulphur level of <5 ppm; excellent gassing tendency of <30 ?L per minute as measured according to ASTM D-2300-1976, and a rotary pressure vessel oxidation stability (RPVOT) value of at least 400 minutes as measured according to ASTM D 2272-02.Type: ApplicationFiled: June 28, 2007Publication date: January 1, 2009Applicant: Chevron U.S.A. Inc.Inventors: Jan L. Arickx, Johan R. Luycx
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Patent number: 7029605Abstract: There is provided a low dielectric constant material, which is excellent in thermal resistance, has low dielectric constant, and is applicable to a semiconductor device or electric appliances, an insulation film between semiconductor layers using the same, and the semiconductor device. The material is the low dielectric constant material having thermal resistance, which contains borazine skeletal molecules shown by the following formula (1) and the like in an inorganic or organic material molecule.Type: GrantFiled: August 31, 2001Date of Patent: April 18, 2006Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Sei Tsunoda, Hideharu Nobutoki, Noboru Mikami
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Patent number: 6770426Abstract: A method for removing organic material in the fabrication of structures includes providing a substrate assembly having an exposed organic material and removing at least a portion of the exposed organic material using a composition including sulfur trioxide (SO3) in a supercritical state. For example, the exposed organic material may be selected from the group of resist material, photoresist residue, UV-hardened resist, X-ray hardened resist, carbon-fluorine containing polymers, plasma etch residues, and organic impurities from other processes. Further, organic material removal compositions for performing such methods are provided.Type: GrantFiled: August 30, 2000Date of Patent: August 3, 2004Assignee: Micron Technology, Inc.Inventor: Brian A. Vaartstra
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Patent number: 6521142Abstract: The present invention relates to fire-resistant hydraulic fluids. More particularly, the invention relates to fire-resistant hydraulic fluid compositions comprising the combination of a trialkoxyalkyl-phosphate, a diluent selected from the group consisting of a natural triglyceride, a synthetic ester, and a polypropylene glycol, and a high molecular weight polymer.Type: GrantFiled: August 1, 2000Date of Patent: February 18, 2003Assignee: Houghton Technical Corp.Inventors: Rosauro V. Holgado, Richard Adams, Chan Talaty
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Publication number: 20020053653Abstract: There is provided a film, which is excellent in thermal resistance, has low dielectric constant, and is applicable to a semiconductor device or electric appliances. The low dielectric constant film having thermal resistance comprises molecules comprising boron, nitrogen, and hydrogen, wherein the number of the nitrogen atom is 0.7 to 1.3 and the number of the hydrogen atom is 1.0 to 2.2 based on one boron atom, and of which dielectric constant is at most 3 2.4.Type: ApplicationFiled: August 30, 2001Publication date: May 9, 2002Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Sei Tsunoda, Hideharu Nobutoki, Noboru Mikami
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Patent number: 6355850Abstract: Electrical oils having improved uninhibited oxidation and electrical resistance are derived by blending a substantially nitrogen and sulfur free paraffinic or naphthenic base oil with a hydrofined light gas oil having a sulfur to nitrogen weight ratio of greater than 100:1 wherein the hydrofined light gas oil is added to the base oil in an amount sufficient to provide a blend having greater than about 0.03 wt % sulfur.Type: GrantFiled: January 18, 2000Date of Patent: March 12, 2002Assignee: Exxon Research and Engineering CompanyInventors: Jacob Ben Angelo, Thomas Lynn Bays
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Patent number: 6284158Abstract: The invention relates to pumpable heat transfer compositions wherein a solid polymeric porous structure having absorbed therein a polar or non-polar phase change material is incorporated with a heat transfer carrier liquid, with the phase change material being present in an amount sufficient to increase the heat capacity and/or heat transfer coefficient of the carrier liquid. The invention also relates to the method of increasing the heat capacity and/or heat transfer coefficient of a heat transfer carrier liquid by adding thereto a solid polymeric porous structure having absorbed therein a polar or non-polar phase change material.Type: GrantFiled: June 3, 1999Date of Patent: September 4, 2001Assignee: Southwest Research InstituteInventors: Mary C. Marshall, Herman W. Schlameus, Richard J. Mannheimer
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Patent number: 6063312Abstract: A pumpable heat transfer composition comprising a carrier liquid, a phase change material insoluble in the carrier liquid, and a solid microporous structure. The invention also comprises the method of making this composition.Type: GrantFiled: February 22, 1996Date of Patent: May 16, 2000Assignee: Southwest Research InstituteInventor: Richard J. Mannheimer
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Patent number: 5871673Abstract: An uninflammable insulating liquid is obtained by adding an emulsifying agent having a volume ratio of 1 to 3% to an insulating liquid containing a fluorocarbon liquid of at least 25% in a volume ratio to cause emulsification. In this liquid mixture, when polyol ester or polydimethylsiloxane is used as the insulating liquid, an uninflammable insulating liquid that does not cause pollution or an environmental problem can be obtained. When tricresyl phosphate is used as the insulating liquid, an uninflammable insulating liquid having a dielectric constant close to that of insulating paper can be obtained. A liquid pipe for circulating a fluorocarbon emulsion in a tank is provided outside the tank, and a pump and a stirrer are connected midway along the liquid pipe to constantly stir the fluorocarbon emulsion, thereby preventing it from being separated into two layers. When a radiator is provided to the liquid pipe, the stirring system for the fluorocarbon emulsion can also serve as the cooling system.Type: GrantFiled: December 29, 1995Date of Patent: February 16, 1999Assignee: Fuji Electric Co., Ltd.Inventor: Yoshitake Nakagami
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Patent number: 5855809Abstract: This invention relates generally to inorganic ionic liquids which function as electrolytes and do not crystallize at ambient temperature. More specifically, this invention is directed to quasi-salt inorganic ionic liquids which comprise the reaction product of a strong Lewis acid with an inorganic halide-donating molecule. This invention is further directed to quasi-salt inorganic ionic liquid mixtures which comprise combinations of electrolyte additives and quasi-salt inorganic ionic liquids. These quasi-salt inorganic ionic liquid mixtures are useful electrolytes.Type: GrantFiled: November 12, 1996Date of Patent: January 5, 1999Assignee: Arizona Board Of RegentsInventors: Charles Austen Angell, Sheng-Shui Zhang, Kang Xu
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Patent number: 5824829Abstract: An inhibitor to suppress or inhibit the viscosity increase of a hydrocarbon, e.g. in a bottom section of an oil quench tower, featuring the use of a sulfonic acid and/or its salt as an effective inhibitor composition, which may optionally contain a polymerization inhibitor including one or more inhibitors selected from the group of aromatic amines, phenols and dialkyl hydroxyl amines. Furthermore, the method to inhibit the increasing viscosity of hydrocarbon, e.g. in a bottom section of a tower, may be accomplished by adding the hydrocarbon viscosity inhibitor to the feed oil, reflux oil or directly to the tower bottom oil in the tower. Such an oil quench tower is used for an olefin production process in which the hydrocarbon may include naphtha, light oil, natural gas, liquefied natural gas, etc. in the raw material.Type: GrantFiled: May 22, 1997Date of Patent: October 20, 1998Assignee: Baker Hughes IncorporatedInventors: Noriaki Maeda, Toru Taguchi, Seiji Tanizaki, Nobumitsu Kumazawa, Yutaka Takeuchi
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Patent number: 5215676Abstract: A chemical composition consisting of a very low pH mixture of hydrochloric and phosphoric acids with organic ammonium chlorides and organic sulfate. The composition is effective for the removal of rust and stains from a variety of surfaces, including metal, concrete, plastic, wood and fiberglass surfaces, and is non-corrosive to metals and relatively harmless to organic materials.Type: GrantFiled: September 14, 1992Date of Patent: June 1, 1993Inventor: John A. Stone
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Patent number: 5106522Abstract: An electro-rheological fluid which comprises a solid particulate substance contained in a hydrophobic vehicle which is liquid at atmospheric pressure at least at temperatures below 50.degree. C. and which comprises a compound of the formula:(X).sub.n --Ar[Q--Z].sub.pwherein:Ar represents an aromatic nucleus;Q represents an oxygen or a sulphur atom, or a group of the formula CY.sub.1 Y.sub.2, SO, SO.sub.2, SiF.sub.2, --OSi(Y.sub.1 Y.sub.2)O-- in which Y.sub.1 and Y.sub.Type: GrantFiled: April 25, 1990Date of Patent: April 21, 1992Assignee: National Research Development CorporationInventors: James E. Stangroom, Ian Harness
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Patent number: 5094769Abstract: A compliant thermally conductive, preferably dielectric, compound that enhances the power dissipation capability of high-powered electrical components such as bipolar VLSI semiconductor chips. The compound has chemically stable thermal conduction and viscosity properties; is not subject to phase separation during use and may be applied in small gaps to maximize thermal conduction. The compound preferably comprises a liquid carrier having thermal filler particles dispersed therein and a coupling agent having a functionality which is reactive with the calcined surface of the thermal filler particles, and a functionality having preferential wetting of the thermal filler particles over self-condensation. Additional additives such as fumed silica and polyisobutylene enhance the phase stability and resistance to thermo-mechanical shear force degradation of the thermally conductive compound encountered during functional usage, e.g., fluctuating power cycles.Type: GrantFiled: May 13, 1988Date of Patent: March 10, 1992Assignee: International Business Machines CorporationInventors: Herbert R. Anderson, Jr., Richard B. Booth, Lawrence D. David, Mark O. Neisser, Harbans S. Sachdev, Mark A. Takacs
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Patent number: 4899249Abstract: A dielectric medium composition comprising a fluorine-containing amide or a fluorine-containing sulfonamide and capacitors or other electric devices incorporating said composition, are disclosed herein.Type: GrantFiled: April 21, 1988Date of Patent: February 6, 1990Assignee: Pennwalt CorporationInventors: James L. Reilly, Ludwig K. Huber, Gordon R. Leader
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Patent number: 4755275Abstract: A process for preparing an electrical insulating oil comprising a reaction product having a boiling range of higher than 260.degree. C. obtained by treating a hydrocarbn feed at a reaction temperature in the range of 0.degree. to 300.degree. C. in liquid phase in the presence of an acid catalyst, said hydrocarbon feed comprising a distillate from a thermal-cracked oil obtained in a thermal cracking process for thermally cracking a petrolic heavy residual oil at a temperature not lower than 400.degree. C. and not exceeding 700.degree. C., said distillate consisting mainly of hydrocarbons boiling in the range of 120.degree. to 290.degree. C. and said distillate containing at least 30 weight percent of paraffins and at least 10 weight percent of aliphatic olefins, and separating said reaction product from the resulting mixture containing at least said reaction product and unreacted hydrocarbons.Type: GrantFiled: February 5, 1985Date of Patent: July 5, 1988Assignee: Nippon Petrochemicals Company, LimitedInventors: Atsushi Sato, Yoshikazu Murai, Tatsuo Yamaguchi, Kanji Mochizuki, Kunio Sugisawa
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Patent number: 4716084Abstract: An oil-impregnated capacitor made by winding at least one plastic film impregnated with an electrical insulating oil comprising 1-phenyl-1-methylphenylethane in which 1-phenyl-1-(4-methylphenyl)ethane and 1-phenyl-1-(2-methyl)ethane are present in amounts of not less than 70 percent and not more than 15 percent, respectively, based on the total weight of the 1-phenyl-1-methylphenylethane.Type: GrantFiled: April 18, 1986Date of Patent: December 29, 1987Assignee: Nippon Petrochemicals Company, LimitedInventors: Atsushi Sato, Shigenobu Kawakami, Keiji Endo, Hideyuki Dohi
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Patent number: 4699727Abstract: Thermally stable heat transfer fluids are disclosed which are polyoxyethylene polymers initiated with bisphenols. These polymers do not smoke excessively, volatilize, nor form sludge in high temperature heat transfer operations in open and closed systems.Type: GrantFiled: November 22, 1985Date of Patent: October 13, 1987Assignee: BASF CorporationInventor: Edward M. Dexheimer
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Patent number: 4656558Abstract: An electrical capacitor having a rolled metallized thermoplastic strip and a liquid dielectric containing polybutene of average molecular weight of at least 800.Type: GrantFiled: August 2, 1985Date of Patent: April 7, 1987Assignee: Aerovox IncorporatedInventor: Jeffrey A. Bentley
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Patent number: 4566994Abstract: A flame-retardant electrical insulating oil composition comprising 100 parts by volume of the insulating oil and 5 to 80 parts by volume a halogen-containing phosphoric ester.Type: GrantFiled: June 6, 1983Date of Patent: January 28, 1986Assignee: Nippon Oil Co., Ltd.Inventors: Hiroshi Hasegawa, Akira Shinzawa, Yoshiki Kohno
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Patent number: 4547467Abstract: A composition for a dielectric ink used in a screening process including a lead-free glass frit binder, silica, and a vehicle. The dielectric composition is particularly suited for use in gas plasma display panels.Type: GrantFiled: June 22, 1983Date of Patent: October 15, 1985Assignee: Burroughs CorporationInventors: Edward G. Barth, Ruvim Braude, Nicholas W. Kay
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Patent number: 4442027Abstract: An electrical insulating oil composition which is characterized in that said insulating oil composition contains 5 to 300 ppm (as sulfur) of sulfur compounds and exerts excellent deterioration resistance when the insulating oil composition is fed through or used in contact with a substance made of lead or a lead alloy.Type: GrantFiled: July 8, 1983Date of Patent: April 10, 1984Assignee: Nippon Petrochemicals Company Ltd.Inventors: Atsushi Sato, Naoya Takahashi, Keiji Endo, Hitoshi Yanagishita
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Patent number: 4436654Abstract: A phosphoric triester containing at least one aromatic ring is mixed in an amount of 30 to 80% by weight based on the total constituents with a benzenetricarboxylic acid trialkyl ester or with a polyol ester obtained from trimethylolpropane and a saturated fatty acid to give a fire-retardant insulating oil.Type: GrantFiled: May 7, 1982Date of Patent: March 13, 1984Assignee: Hitachi, Ltd.Inventors: Etsuo Ohe, Katsuo Sugawara, Ititaro Tani, Hideo Tsukioka
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Patent number: 4343029Abstract: Capacitors and similar electrical devices containing a dielectric liquid have superior properties when the dielectric liquid is a polyalkylated diphenyl sulfide. Particularly good dielectric properties are provided when the liquid consists essentially of the mixed isomers obtained by reacting m-xylene or similar dialkylbenzene with SCl.sub.2.Type: GrantFiled: September 16, 1980Date of Patent: August 3, 1982Assignee: The Dow Chemical CompanyInventors: James M. Renga, Albert H. Emmons
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Patent number: 4321424Abstract: An oil capable of use in environments where the accumulation of water is detrimental to the intended use, the oil consisting of branched and straight chain aliphatic hydrocarbons and minor amounts of tri-cresyl phosphate.Type: GrantFiled: March 31, 1978Date of Patent: March 23, 1982Assignee: RTE CorporationInventor: John H. Olmsted
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Patent number: 4320035Abstract: A dielectric fluid composition with high electrical strength characterized by a gas mixed with the vapor from a first fluid having a high vapor pressure at a low temperature and the vapor from a second fluid having a low vapor pressure at a low temperature to effect a mixture having a higher electrical strength than any component thereof over a temperature range from about -20.degree. C. to -40.degree. C. to about +120.degree. C. to +140.degree. C., with the vapor pressure of the mixture at the highest temperature being about one to two atmospheres. Also, the mixing of low and high cost liquids to obtain a low cost liquid with a vapor with an electrical strength equivalent or better than the best vapor over a wide temperature range.Type: GrantFiled: February 4, 1981Date of Patent: March 16, 1982Assignee: Westinghouse Electric Corp.Inventor: Ronald T. Harrold
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Patent number: 4296003Abstract: A dielectric fluid composition with high electrical strength characterized by a first fluid selected from the group consisting of electronegative gases, such as SF.sub.6, CCl.sub.2 F.sub.2, C.sub.2 F.sub.6, CF.sub.3 Cl, and CF.sub.4, and mixtures thereof; or from another group consisting of electropositive gases, such as N.sub.2 and CO.sub.2, and mixtures thereof; or from mixtures of the two groups; and a second fluid from a group of atomized liquids, which may be chlorinated liquid, such as, C.sub.2 Cl.sub.4 (tetrachloroethylene); and fluorocarbon liquids, such as, C.sub.8 F.sub.16 O (perfluorodibutyl ether), and mixtures thereof.Type: GrantFiled: June 27, 1980Date of Patent: October 20, 1981Assignee: Electric Power Research Institute, Inc.Inventors: Ronald T. Harrold, Lawrence E. Ottenberg
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Patent number: 4288772Abstract: A flame retardant dielectric coolant for power transformers used in restricted environments consisting of a mixture of an electronegative gas dissolved in silicone fluid for providing improved 60 hertz breakdown voltage resistance to the fluid.Type: GrantFiled: March 6, 1980Date of Patent: September 8, 1981Assignee: General Electric CompanyInventor: Ian H. MacBeth
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Patent number: 4263158Abstract: A dielectric composition comprising ethylene polymer and effective amounts, as a water treeing inhibitor, of at least one organo silane of the following formula: ##STR1## wherein R and R.sub.1 are independently selected from hydrogen, a hydrocarbyl group or substituted hydrocarbyl groups wherein the substituents are hydroxy, halogen, nitro, C.sub.1 to C.sub.8 alkyl, C.sub.1 to C.sub.8 alkoxy; or R and R.sub.1 together with the adjacent carbon atom form a ring of 3 to 7 carbon atoms; R.sub.2 is C.sub.1 to C.sub.8 alkyl, C.sub.1 to C.sub.18 alkoxy, C.sub.6 to C.sub.18 aryl, C.sub.1 to C.sub.8 acyloxy, C.sub.6 to C.sub.18 substituted or unsubstituted aryloxy; R.sub.3 and R.sub.4 are independently selected from C.sub.1 to C.sub.18 alkoxy, C.sub.6 to C.sub.18 substituted or unsubstituted aryloxy or C.sub.1 to C.sub.8 acyloxy; Y is C.sub.1 to C.sub.8 alkylene, C.sub.6 to C.sub.18 substituted or unsubstituted arylene or --CH.sub.2 CH.sub.2 NH(CH.sub.2).sub.3 --.Type: GrantFiled: September 18, 1979Date of Patent: April 21, 1981Assignee: Union Carbide CorporationInventors: Arnold C. Ashcraft, Robert J. Turbett