N-containing Patents (Class 252/575)
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Publication number: 20140313670Abstract: The present disclosure is directed to a dielectric fluid comprising a farnesene-based oligomer and an antioxidant and devices containing the dielectric fluid.Type: ApplicationFiled: December 5, 2012Publication date: October 23, 2014Applicant: Dow Global Technologies LLcInventors: Suh Joon Han, Brian R. Maurer, Xiaodong Zhang
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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: 8785799Abstract: This invention is directed to a polymer thick film moisture barrier layer dielectric composition comprising thermoplastic urethane resin, thermoplastic phenoxy resin, diacetone alcohol and fumed silica. Dielectrics made from the composition can be used in various electronic applications to protect electrical elements and particularly to insulate and protect both the conductive thermoformable silver above it and the polycarbonate substrate below it in capacitive switch applications.Type: GrantFiled: January 8, 2013Date of Patent: July 22, 2014Assignee: E I du Pont de Nemours and CompanyInventor: Jay Robert Dorfman
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Publication number: 20140110143Abstract: The present disclosure provides a dielectric fluid composed of a genetically engineered microbial oil (GEMO) and an antioxidant. The GEMO includes a triglyceride and an amount of small glyceride. The amount of small glyceride is within a range from 0.1 wt % to 30 wt %, based upon the GEMO weight.Type: ApplicationFiled: June 25, 2012Publication date: April 24, 2014Inventors: Suh Joon Han, Brian R. Maurer
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Publication number: 20140084226Abstract: The present invention relates to a liquid composition for electrical insulation including a dielectric fluid and an additive, the additive being dissolved in the dielectric fluid and having a 1st excitation energy which is lower than the 1st excitation energy of the dielectric fluid.Type: ApplicationFiled: December 2, 2013Publication date: March 27, 2014Inventors: Mikael Unge, Santanu Singha, Oystein Hestad, Stian Ingebrigtsen, Hans-Sverre Smalo, Per-Olof Astrand
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Publication number: 20130163203Abstract: 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: ApplicationFiled: September 15, 2011Publication date: June 27, 2013Applicant: DOW GLOBAL TECHNOILOGIES INC.Inventors: Suh Joon Han, Dale C. Schmidt, Christopher J. Tucker
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Publication number: 20120322897Abstract: 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: ApplicationFiled: May 30, 2012Publication date: December 20, 2012Inventors: Jakob BREDSGUARD, Jeremy FOREST, Travis THOMPSON
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Publication number: 20120161085Abstract: Provided is an electrical insulating oil formulation comprising at least one diester or triester species having ester links on adjacent carbons, and an anti-oxidant additive. The formulation exhibits an excellent balance of the pour point, viscosity and fire point properties, and is imminently suitable for use as a transformer oil.Type: ApplicationFiled: December 23, 2010Publication date: June 28, 2012Applicant: Chevron U.S.A. Inc.Inventors: Ryan J. Schexnaydre, John M. Rosenbaum, Saleh Elomari, Stephen J. Miller, Zhen Zhou
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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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Publication number: 20110122480Abstract: Provided are a method of fabricating an electrophoretic ink, the electrophoretic ink formed using the method, and an electrophoretic display having the same. The method of fabricating the electrophoretic ink includes dispersing a pigment particle into a dielectric fluid for the electrophoretic ink and adding at least monomer and initiator to the dielectric fluid to form a polymeric membrane surrounding the pigment particle. Since the pigment particle surrounded by the polymeric membrane and the dielectric fluid in which the pigment particle is dispersed can be utilized as the electrophoretic ink as they are, the method of fabricating the electrophoretic ink is simplified.Type: ApplicationFiled: April 22, 2010Publication date: May 26, 2011Applicant: ELECTRONICS AND TELECOMMUNICATONS RESEARCH INSTITUTEInventors: Chul Am KIM, Hyeonjung Yoo, Kyung Soo Suh, Seung Youl Kang
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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: 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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Publication number: 20080254614Abstract: Structures having low-k multilayered dielectric diffusion barrier layer having at least one low-k sublayer and at least one air barrier sublayer are described herein. The multilayered dielectric diffusion barrier layer are diffusion barriers to metal and barriers to air permeation. Methods and compositions relating to the generation of the structures are also described. The advantages of utilizing these low-k multilayered dielectric diffusion barrier layer is a gain in chip performance through a reduction in capacitance between conducting metal features and an increase in reliability as the multilayered dielectric diffusion barrier layer are impermeable to air and prevent metal diffusion.Type: ApplicationFiled: June 23, 2008Publication date: October 16, 2008Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Jeffrey C. Hedrick, Elbert E. Huang
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Patent number: 7108807Abstract: Poly-o-hydroxyamides include binaphthyl substituents as repeating units. The poly-o-hydroxyamides can be cyclized to give the polybenzoxazole by heating. Pore formation occurs, so that a dielectric having a very low dielectric constant k of less than 2.5 is obtained.Type: GrantFiled: April 28, 2003Date of Patent: September 19, 2006Assignee: Infineon Technologies AGInventors: Recai Sezi, Andreas Walter, Klaus Lowack, Anna Maltenberger, Robert Banfic
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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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Publication number: 20020052442Abstract: Process for preparing non-aqueous dispersions, wherein a liquid prepolymer is emulsified in a non-aqueous liquid, the droplet size of the emulsion is adjusted to 0.1 to 30 &mgr;m and the droplet size distribution U90 is adjusted to less than 2 by means of a jet disperser, and the droplets are cured by a chemical reaction.Type: ApplicationFiled: April 30, 1999Publication date: May 2, 2002Inventors: ECKHARD WENDT, ROBERT BLOODWORTH, MARKUS MECHTEL, BERND KLINKSIEK, OLAF HALLE
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Patent number: 6048618Abstract: The present invention relates to the use of insulating fluids, selected from the group consisting of aliphatic esters, alkylbenzenes, crosslinkable compositions comprising at least one polydiene polyol, at least one polyisocyanate and at least one chemically inert liquid charge, for the impregnation of the wound coils of self-healing capacitors.Type: GrantFiled: June 19, 1997Date of Patent: April 11, 2000Assignee: Elf Atochem S.A.Inventors: Noelle Berger, Pierre Jay
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Patent number: 5948852Abstract: Process for preparing non-aqueous dispersions, wherein a liquid prepolymer is emulsified in a non-aqueous liquid, the droplet size of the emulsion is adjusted to 0.1 to 30 .mu.m and the droplet size distribution U.sub.90 is adjusted to less than 2 by means of a jet disperser, and the droplets are cured by a chemical reaction.Type: GrantFiled: August 7, 1997Date of Patent: September 7, 1999Assignee: GE Bayer Silicones GmbH & Co. KGInventors: Eckhard Wendt, Robert Bloodworth, Markus Mechtel, Bernd Klinksiek, Olaf Halle
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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: 5741843Abstract: Disclosed are sealant compositions having excellent slump and spew resistant, even at relatively high operating temperatures for electrical connectors. The sealants, which are flowable at such elevated temperatures, comprise two essential components: elastomeric thermoplastic polymer, preferably an organic polymer composite comprising diblock and triblock copolymers, and extender for the polymer. The extender may comprise a primary and a secondary extender, such as polybutene oil and mineral oil, respectively.Type: GrantFiled: May 31, 1995Date of Patent: April 21, 1998Assignee: The Whitaker CorporationInventors: Francis Frederick Koblitz, Thomas John Lynch, Ricky Charles Mellinger
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Patent number: 5708558Abstract: A metalized film capacitor has a plurality of electrodes separated by dielectric spacers and contains a dielectric fill system including 1 to 50 wt % of calcium oxide scavenger. This dielectric fill system is especially useful in aluminum metalized film capacitors for AC service.Type: GrantFiled: May 20, 1996Date of Patent: January 13, 1998Assignee: Commonwealth Sprague Capacitor Inc.Inventor: Andrew E. Dequasie
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Patent number: 5580265Abstract: Disclosed are sealant compositions having excellent slump and spew resistant, even at relatively high operating temperatures for electrical connectors. The sealants, which are flowable at such elevated temperatures, comprise two essential components: elastomeric thermoplastic polymer, preferably an organic polymer composite comprising diblock and triblock copolymers, and extender for the polymer. The extender may comprise a primary and a secondary extender, such as polybutene oil and mineral oil, respectively.Type: GrantFiled: August 29, 1994Date of Patent: December 3, 1996Assignee: The Whitaker CorporationInventors: Francis F. Koblitz, Thomas J. Lynch, Ricky C. Mellinger
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Patent number: 5390073Abstract: Dielectric materials having a high dipole moment density are provided. The high dipole moment density is achieved by the use of a substituted .alpha.-amino acid, such as N-trimethyl glycine and related homologues having nonpolar sidechain groups, with three alkyl substitutions on the nitrogen of the .alpha.-amino group. These molecules have a high dipole moment and small volume, allowing rapid rotation around the .alpha.-amino, carboxyl dipole. N-trimethyl glycine alone or in combination with one or more homologues is preferably provided as a solute in a liquid dielectric solution. Alternatively, these molecules are provided as substituents on a linear polymer.Type: GrantFiled: January 11, 1993Date of Patent: February 14, 1995Assignee: Maxwell Laboratories, Inc.Inventor: William G. McMillan
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Patent number: 5360350Abstract: Disclosed are sealant compositions having excellent slump and spew resistance, even at relatively high operating temperatures for electrical connectors. The sealants, which are flowable at such elevated temperatures, comprise two essential components: elastomeric thermoplastic polymer, preferably an organic polymer composite comprising diblock and triblock copolymers, and extender for the polymer. The extender may comprise a primary and a secondary extender, such as polybutene oil and mineral oil, respectively.Type: GrantFiled: May 5, 1992Date of Patent: November 1, 1994Assignee: The Whitaker CorporationInventors: Francis F. Koblitz, Thomas J. Lynch, Ricky C. Mellinger
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Patent number: 5171482Abstract: A silicone composition containing a carboxylic acid amide which develops a vapor pressure during its use in an electrical device prevents faulty conduction at electrical contacts which are caused by silicone vapor. Electrical devices made by bringing the vapor of the carboxylic acid in the presence of the silicone vapor exhibit extended useful lives.Type: GrantFiled: August 23, 1990Date of Patent: December 15, 1992Assignee: Dow Corning Toray Silicone Co., LTDInventor: Hiroyuki Asai
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Patent number: 4935165Abstract: The poor electrical conduction at an electrical switch contact caused by organopolysiloxane gas can be prevented by providing that a nitrogenous base gas be simultaneously present with the organopolysiloxane gas. Nitrogeneous base gases can be aliphatic amines or aromatic amines.Type: GrantFiled: October 30, 1987Date of Patent: June 19, 1990Assignee: Toray Silicone Company, Ltd.Inventors: Hiroyuki Asai, Katsutoshi Mine, Hiroshi Matsuoka
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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: 4542246Abstract: An electrical insulating oil, comprising:a base oil selected from the group consisting of a mineral oil, an alkylbenzene, and a mixture of a mineral oil and an alkylbenzene;a non-basic nitrogen content in an amount of 16 ppm or more; anda basic nitrogen content in an amount of 6% or less based on the weight of the non-basic nitrogen content.Type: GrantFiled: March 25, 1983Date of Patent: September 17, 1985Assignee: Nippon Mining Co., Ltd.Inventors: Atsushi Matsunaga, Sampo Kusayanagi, Masamitu Takano, Yutaka Kato
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Patent number: 4467395Abstract: An AC metallized film capacitor having a plurality of electrodes separated by a dielectric spacer contains as its impregnant system an ester dielectric fluid and 2 to 10% of a N,N-substituted carbodiimide to improve capacitance retention characteristics.Type: GrantFiled: February 25, 1983Date of Patent: August 21, 1984Assignee: Sprague Electric CompanyInventor: Sidney D. Ross
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Patent number: 4450424Abstract: An insulating system is described that incorporates a cellulosic material which is impregnated with a nitrogen content no less than 0.2% by weight and a overall density not greater than 0.9 gm/cm.sup.3. This cellulosic material when impregnated by a dielectric liquid such as transformer oil, exhibits a more uniform electrical stress distribution than papers having a density greater than 0.9 gm/cm.sup.3. The insulating system thereformed is particularly useful for application in low stress areas such as the layer insulation in a distribution class transformer.Type: GrantFiled: May 10, 1982Date of Patent: May 22, 1984Assignee: McGraw-Edison CompanyInventors: Fred S. Sadler, Paul F. Hettwer, Vu H. Viet, Clarence R. Acker
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Patent number: 4440671Abstract: The disclosure of this application is directed to a composition which serves to improve the water-treeing resistance of polymeric compositions comprising a hydrocarbon-substituted diphenyl amine and a high molecular weight polyethylene glycol. Polymeric compositions containing the water-tree retardant additives are useful as extrudates about electrical conductors.Type: GrantFiled: February 23, 1983Date of Patent: April 3, 1984Assignee: Union Carbide CorporationInventor: Robert J. Turbett
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Patent number: 4424147Abstract: Disclosed is a method of inhibiting the attack by perchloroethylene on copper and organic polymers subject to said attack, such as parylene, by adding to perchloroethylene about 20 to about 1000 ppm of a stabilizer having the general formula ##STR1## The preferred concentration of the stabilizer is about 40 to about 500 ppm. Also disclosed is an electrical apparatus containing copper or organic polymer subject to attack by perchloroethylene and perchloroethylene containing the stabilizer.Type: GrantFiled: August 31, 1982Date of Patent: January 3, 1984Assignee: Westinghouse Electric Corp.Inventors: Robert A. Kurz, Anthony J. Palumbo
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Patent number: 4317159Abstract: An AC metallized film capacitor having a plurality of electrodes separated by a dielectric spacer contains as its impregnant system a dielectric fluid and 1-20% of an aliphatic or aromatic isocyanate having unreacted NCO groups to improve life characteristics.Type: GrantFiled: December 10, 1979Date of Patent: February 23, 1982Assignee: Sprague Electric CompanyInventor: Andrew Dequasie
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Patent number: 4303499Abstract: A process is provided for the production of a stable, age-resisting mineral oil composition which comprises subjecting a paraffin base mineral crude oil to distillation to produce a distillate fraction boiling in the range of 270.degree. to 400.degree. C., solvent dewaxing said distillate fraction, solvent extracting said dewaxed distillate portion to produce a solvate fraction and an extract fraction, refining said solvate fraction, concentrating and refining said extract fraction and adding said refined, concentrated extract portion with said refined solvate fraction.Type: GrantFiled: February 9, 1979Date of Patent: December 1, 1981Assignee: Deutsche Texaco AktiengesellschaftInventors: Walter Geistert, Ulrich Kramer, Gottfried Klippel
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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: 4293433Abstract: Electrical devices such as transformers and power capacitors are improved by the use of a dielectric fluid prepared by combining perchloroethylene having a low chlorinated ethane content with an antioxidant. This fluid has excellent resistance to decomposition over long periods of time and under severe operational conditions.Type: GrantFiled: June 2, 1980Date of Patent: October 6, 1981Assignee: Diamond Shamrock CorporationInventors: Jack A. Borror, Edward A. Rowe, Jr.