Fluent Dielectric Patents (Class 252/570)
  • Patent number: 10604641
    Abstract: The present invention provides a thermosetting resin composition comprising (A) a metal salt of disubstituted phosphinic acid, (B) a maleimide compound having a N-substituted maleimide group in a molecule, (C) a 6-substituted guanamine compound or dicyandiamide and (D) an epoxy resin having at least two epoxy groups in a molecule and a prepreg and a laminated plate which are prepared by using the same. The prepregs obtained by impregnating or coating a base material with the thermosetting resin compositions of the present invention and the laminated plates produced by laminating and molding the above prepregs are balanced in all of a copper foil adhesive property, a glass transition temperature, a solder heat resistance, a moisture absorption, a flame resistance, a relative dielectric constant and a dielectric loss tangent, and they are useful as a printed wiring board for electronic instruments.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: March 31, 2020
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Shinji Tsuchikawa, Masanori Akiyama, Tomohiko Kotake
  • Patent number: 10535591
    Abstract: A semiconductor device includes a substrate, electrical conductors and a passivation layer. Each of the electrical conductors includes a first portion through the substrate, and a second portion over the surface of the substrate and connected to the first portion. The passivation layer is over the surface of the substrate, wherein the passivation layer partially covers an edge of the second portion of each of the electrical conductors.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: January 14, 2020
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Jing-Cheng Lin, Li-Hui Cheng, Po-Hao Tsai
  • Patent number: 10381127
    Abstract: Dielectric fluid comprising one or more saturated diesters of dimer acids. Such dielectric fluids can also comprise one or more additives such as antioxidants, oxidation inhibitors, corrosion inhibitors, metal deactivators, pour point depressants, or combinations thereof. Additionally, various embodiments concern an electrical device or component comprising a dielectric fluid containing one or more saturated diesters of dimer acids.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: August 13, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Arkady L. Krasovskiy, Paul J. Caronia
  • Patent number: 10214647
    Abstract: Polymer shells similar to those described in U.S. Pat. No. 6,822,782 can be formed on pigment particles by (a) physi-sorping a reagent comprising polymerizable groups on to the pigment particles by treating the particle with a reagent having a polymerizable or polymerization-initiating group, such that the reagent will not desorb from the particle surface when the particle is placed in a hydrocarbon medium; or (b) treating pigment particles bearing nucleophilic groups with a reagent having a polymerizable or polymerization-initiating group, and an electrophilic group, thus attaching the polymerizable or polymerization-initiating groups to the particle surface. The zeta potential of the pigment particles can be varied by a process similar to (b) but using a reagent which does not have a polymerizable or polymerization-initiating group.
    Type: Grant
    Filed: May 20, 2017
    Date of Patent: February 26, 2019
    Assignee: E Ink Corporation
    Inventors: Lee Yezek, Andrew Drabek, Luke M. Slominski, Jennifer M. Morrison, Stephen J. Telfer, Brian Steinberg
  • Patent number: 10208207
    Abstract: Polymer shells similar to those described in U.S. Pat. No. 6,822,782 can be formed on pigment particles by (a) physi-sorping a reagent comprising polymerizable groups on to the pigment particles by treating the particle with a reagent having a polymerizable or polymerization-initiating group, such that the reagent will not desorb from the particle surface when the particle is placed in a hydrocarbon medium; or (b) treating pigment particles bearing nucleophilic groups with a reagent having a polymerizable or polymerization-initiating group, and an electrophilic group, thus attaching the polymerizable or polymerization-initiating groups to the particle surface. The zeta potential of the pigment particles can be varied by a process similar to (b) but using a reagent which does not have a polymerizable or polymerization-initiating group.
    Type: Grant
    Filed: May 20, 2017
    Date of Patent: February 19, 2019
    Assignee: E Ink Corporation
    Inventors: Lee Yezek, Andrew Drabek, Luke M. Slominski, Jennifer M. Morrison, Stephen J. Telfer, Brian Steinberg
  • Patent number: 10155697
    Abstract: A composite dielectric ceramic material having anti-reduction and high temperature stability characteristics includes the main component of (1-x)(BaTiO3)-x(Ba2LiTa5O15) formulated in accordance with the relative molar ratio of up to 100 mole composite dielectric ceramics and a predetermined ratio of one or multiple oxide subcomponents corresponding to 100 moles of the main component. The oxide subcomponents of Li2TiO3, BaSiO3, (Ba0.6Ca0.4)SiO3 and SiO2 can be used as sintering aids to provide a sintering promotion effect. The oxide subcomponents of CaO, MnO, MgO can also be selected used to improve dielectric stability. More particularly, CaO has the advantages of improving the anti-reduction ability and increasing the coefficient of resistance. Therefore, with the adding of the oxide subcomponents and their interactions, the rate of change of the TCC curve of the composite dielectric ceramic material (1-x)(BaTiO3)-x(Ba2LiTa5O15) in the temperature range of ?55° C.˜200° C.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: December 18, 2018
    Assignee: HOLY STONE ENTERPRISE CO., LTD.
    Inventors: Sea-Fue Wang, Jian-Hua Li, Yen-Po Hung, Yuan-Cheng Lai
  • Patent number: 10109388
    Abstract: 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: Grant
    Filed: December 2, 2013
    Date of Patent: October 23, 2018
    Assignee: ABB Research Ltd.
    Inventors: Mikael Unge, Santanu Singha, Oystein Hestad, Stian Ingebrigtsen, Hans-Sverre Smalo, Per-Olof Astrand, Lars Lundgaard, Dag Linhjell
  • Patent number: 9754699
    Abstract: The present invention provides a capacitor oil that can maintain breakdown voltage at a high level in a wide temperature range of ?50° C. to 30° C., extremely unlikely precipitates as crystals in particular at ?50° C. and thus has excellent properties both at normal temperature and a lower temperature. The capacitor oil of the present invention comprises 1,1-diphenylethane and benzyltoluene, wherein the mass ratio of 1,1-diphenylethane to benzyltoluene is 0.8 to 2.0, the total amount of the ortho-isomer and para-isomer in the benzyltoluene is 90 percent by mass or less, and the composition has a 40° C. kinematic viscosity of 3.00 mm2/s or lower.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: September 5, 2017
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Nobuhiro Kimura, Hiroyuki Hoshino, Takahiro Kawaguchi
  • Patent number: 9670367
    Abstract: The present invention is directed to an electrophoretic dispersion comprising charged pigment particles dispersed in a solvent or solvent mixture, wherein at least one type of the charged pigment particles has an aggregation size about 2 to about 10 times their primary size and/or has a PDI in the range of 0.1 to 0.3. The electrophoretic dispersion of the present invention is capable of improving both image bistability and contrast ratio through adjusting the size distribution of the charged pigment particles.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: June 6, 2017
    Assignee: E INK CALIFORNIA, LLC
    Inventors: Yu Li, Hui Du, Haiyan Gu
  • Patent number: 9490047
    Abstract: The present disclosure is directed to a dielectric fluid comprising a farnesene-based oligomer and an antioxidant and devices containing the dielectric fluid.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: November 8, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Suh Joon Han, Brian R. Maurer, Xiaodong Zhang
  • Patent number: 9490067
    Abstract: An epoxy resin composition is disclosed for joining dissimilar materials. The identified epoxy resin compositions can be used to seal metallic and non-metallic components of a capacitor. Specifically the epoxy resin composition can be applied to joints between a non-metallic capacitor bushing and a metallic tank cover and metallic terminal cap. Once the epoxy resin composition is cured, it can provide a seal that can withstand the stresses and environmental conditions to which a capacitor is subjected.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: November 8, 2016
    Assignee: COOPER TECHNOLOGIES COMPANY
    Inventors: Chao Li, Stephen John Rigby, Clay Lynwood Fellers, Marco James Mason, Saboura Rokhsair Azar
  • Patent number: 9443655
    Abstract: To increase the heat resistance of a film capacitor, a dielectric resin composition is used as a material for a dielectric resin film used in a film capacitor, the dielectric resin composition being cured by mixing and crosslinking two or more organic materials having functional groups that react with each other to provide a cured article. At least one pair highly cohesive atomic groups which has a molecular cohesive energy equal to or higher than that of a methyl group and capable of cohering with each other due to the molecular cohesive energy is linked to the organic material. The highly cohesive atomic groups form a cohesive portion serving as pseudo-crosslinking.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: September 13, 2016
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Tomomichi Ichikawa, Yasunori Hioki, Norihiro Yoshikawa, Ichiro Nakamura, Shinichi Kobayashi, Ichiro Nakaso
  • Patent number: 9184046
    Abstract: A semiconductor device manufacturing method includes: accommodating a substrate in a processing chamber; and supplying a silicon-based gas and an amine-based gas into the processing chamber that is heated to form a film including silicon and carbon on the substrate. The forming of the film including silicon and carbon includes: supplying the silicon-based gas and the amine-based gas into the processing chamber and confining the silicon-based gas and the amine-based gas in the processing chamber; maintaining a state in which the silicon-based gas and the amine-based gas are confined in the processing chamber, and exhausting an inside of the processing chamber.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: November 10, 2015
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Tsuyoshi Takeda, Taketoshi Sato
  • Patent number: 9176377
    Abstract: Stabilized precursor solutions can be used to form radiation inorganic coating materials. The precursor solutions generally comprise metal suboxide cations, peroxide-based ligands and polyatomic anions. Design of the precursor solutions can be performed to achieve a high level of stability of the precursor solutions. The resulting coating materials can be designed for patterning with a selected radiation, such as ultraviolet light, x-ray radiation or electron beam radiation. The radiation patterned coating material can have a high contrast with respect to material properties, such that development of a latent image can be successful to form lines with very low line-width roughness and adjacent structures with a very small pitch.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: November 3, 2015
    Assignee: Inpria Corporation
    Inventors: Jason K. Stowers, Alan J. Telecky, Douglas A. Keszler, Andrew Grenville
  • Patent number: 8999192
    Abstract: A process for transferring heat from a heat source to a heat sink, comprising using as heat transfer medium a composition comprising: at least one fluorinated fluid free from functional groups (fluid (H)); at least one functional (per)fluoropolyether (functional PFPE(1)) comprising recurring units (R1), said recurring units comprising at least one ether linkage in the main chain and at least one fluorine atom (fluoropolyoxyalkylene chain), and at least one functional end group chosen between —COOH and —CONH2; at least one functional (per)fluoropolyether (functional PFPE(2)) comprising recurring units (R1) as defined above and at least one functional end group chosen between —COCF3 and its hydroxylated derivative —C(OH)2CF3.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: April 7, 2015
    Assignee: Solvay Specialty Polymers Italy S.p.A.
    Inventors: Pier Antonio Guarda, Gianfranco Spataro, Padmanabhan Srinivasan, Giuseppe Marchionni
  • Publication number: 20150028269
    Abstract: The present invention provides a capacitor oil that can maintain breakdown voltage at a high level in a wide temperature range of ?50° C. to 30° C., extremely unlikely precipitates as crystals in particular at ?50° C. and thus has excellent properties both at normal temperature and a lower temperature. The capacitor oil of the present invention comprises 1,1-diphenylethane and benzyltoluene, wherein the mass ratio of 1,1-diphenylethane to benzyltoluene is 0.8 to 2.0, the total amount of the ortho-isomer and para-isomer in the benzyltoluene is 90 percent by mass or less, and the composition has a 40° C. kinematic viscosity of 3.00 mm2/s or lower.
    Type: Application
    Filed: March 5, 2013
    Publication date: January 29, 2015
    Inventors: Nobuhiro Kimura, Hiroyuki Hoshino, Takahiro Kawaguchi
  • Patent number: 8912460
    Abstract: This disclosure relates to methods and systems to reduce high voltage breakdown jitters in liquid dielectric switches. In particular, dielectric liquids have been produced that contain a suspension of nanoparticles and a surfactant to reduce the breakdown jitter. In one embodiment, the suspended nanoparticles are Barium Strontium Titanate (BST) nanoparticles.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: December 16, 2014
    Assignee: The Curators of the University of Missouri
    Inventors: Randy D. Curry, Christopher Yeckel, Daniel Crosby
  • Patent number: 8852466
    Abstract: 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: Grant
    Filed: September 20, 2011
    Date of Patent: October 7, 2014
    Assignee: Schneider Electric Energy France
    Inventors: Yannick Kieffel, Daniel Piccoz, Alain Girodet
  • Patent number: 8801975
    Abstract: An electrical device having therein a dielectric fluid composition, wherein the dielectric fluid composition includes at least one refined, bleached and deodorized vegetable oil and at least one antioxidant, wherein the dielectric fluid composition has a pour point of less than about ?20° C. as measured according to either of ASTM D97 or ASTM D5950.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: August 12, 2014
    Assignee: Cooper Industries, LLC
    Inventors: Kevin J. Rapp, Charles Patrick McShane, Gary A. Gauger, Arthur W. Lemm
  • Patent number: 8795556
    Abstract: 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: Grant
    Filed: April 24, 2012
    Date of Patent: August 5, 2014
    Assignee: International Business Machines Corporation
    Inventor: Qinghuang Lin
  • Patent number: 8753549
    Abstract: 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: Grant
    Filed: September 15, 2011
    Date of Patent: June 17, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Suh Joon Han, Dale C. Schmidt, Christopher J. Tucker
  • Patent number: 8749951
    Abstract: A two-phase mixed media insulator having a dielectric fluid filling the interstices between macro-sized dielectric beads packed into a confined volume, so that the packed dielectric beads inhibit electro-hydrodynamically driven current flows of the dielectric liquid and thereby increase the resistivity and breakdown strength of the two-phase insulator over the dielectric liquid alone. In addition, an electrical apparatus incorporates the two-phase mixed media insulator to insulate between electrical components of different electrical potentials. And a method of electrically insulating between electrical components of different electrical potentials fills a confined volume between the electrical components with the two-phase dielectric composite, so that the macro dielectric beads are packed in the confined volume and interstices formed between the macro dielectric beads are filled with the dielectric liquid.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: June 10, 2014
    Inventors: Steven Falabella, Glenn A. Meyer, Vincent Tang, Gary Guethlein
  • Patent number: 8741186
    Abstract: 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: Grant
    Filed: October 16, 2008
    Date of Patent: June 3, 2014
    Assignees: Ragasa Industrias, S.A. de C.V., Prolec-GE Internacional, S. de R.L. de C.V.
    Inventors: 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
  • Patent number: 8717134
    Abstract: A system comprises a tank, a radiator connected to the tank, and a component situated within the tank and susceptible to creating increasing pressure within system when under a fault condition. The radiator is configured to directionally vent pressure under excessive pressure conditions.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: May 6, 2014
    Assignee: General Electric Company
    Inventors: Florian Peter Pintgen, Paul Alfred Siemers, Malcolm Graham Smith, Jr.
  • Patent number: 8710946
    Abstract: A rupture resistant system comprises a tank comprising a top member, a sidewall member, and a bottom member, and a component situated within the tank and susceptible to creating increasing pressure within the tank when under a fault condition. At least one of the top, sidewall, and bottom members is connected to another of the top, sidewall, and bottom members in a manner so as to cause an increase in inner volume of the tank under increased pressure conditions.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: April 29, 2014
    Assignee: General Electric Company
    Inventors: Florian Peter Pintgen, Paul Alfred Siemers, Malcolm Graham Smith, Jr.
  • Publication number: 20140110643
    Abstract: The present invention provides an electric insulating oil composition that has excellent low temperature properties, hydrogen gas absorbability and giving less adverse effect on living bodies and comprises [A] 1,1-diphenylethane in an amount of 30 to 70 percent by mass, [B] at least one or more component selected from 4 components that are (a) 1-phenyl-1-methylphenylethane, (b) 1-phenyl-1-xylylethane, (c) 1-phenyl-1-ethylphenylethane and (d) benzyltoluene in a total amount of 30 to 70 percent by mass, and [C] 1,2-diphenylethane in an amount of 0.1 to 2 percent by mass and/or diphenylmethane in an amount of 0.1 to 13 percent by mass.
    Type: Application
    Filed: May 25, 2012
    Publication date: April 24, 2014
    Applicant: JX Nippon Oil & Energy Corporation
    Inventors: Nobuhiro Kimura, Hiroyuki Hoshino, Takahiro Kawaguchi, Mikihiro Takaki, Minoru Iizuka
  • Patent number: 8632703
    Abstract: 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: Grant
    Filed: September 5, 2008
    Date of Patent: January 21, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventor: Mark L. Robin
  • Patent number: 8623233
    Abstract: 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: Grant
    Filed: January 10, 2011
    Date of Patent: January 7, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Mark L. Robin, Joan Ellen Bartelt
  • Patent number: 8617434
    Abstract: 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: Grant
    Filed: December 21, 2012
    Date of Patent: December 31, 2013
    Assignee: Cooper Industries, LLC
    Inventors: Kevin J. Rapp, Jerry L. Corkran, Gary A. Gauger, Charles P. McShane
  • Patent number: 8580160
    Abstract: 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: Grant
    Filed: December 23, 2010
    Date of Patent: November 12, 2013
    Assignee: Dow Global Technologies LLC
    Inventors: Suh Joon Han, Dirk B. Zinkweg, Jeffrey M. Cogen, Steve Gluck
  • Publication number: 20130292599
    Abstract: Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of (A) a compound of the formula CF3CX?CHRa where X is H or F and Ra is CF3CF2, CF3 or Cl, provided that (i) when X is F, Ra is Cl, (ii) when Ra is CF3CF2 or Cl, the compound of formula CF3CX?CHRa is the E configurational isomer, and (iii) when Ra is CF3, the compound of formula CF3CX?CHRa is the Z configurational isomer; and (B) a compound of the formula CF3Rb where Rb is CHFCH2F or CH?CHCF3, provided that when Rb is CH?CHCF3, X is F and the compound of formula CF3Rb is the Z configurational isomer. Also disclosed are processes for using such azeotropic or azeotrope-like compositions for preparing a thermoplastic or thermoset foam, for producing refrigeration, for producing an aerosol product and for extinguishing and suppressing a fire; and as blowing agents, solvents, heat transfer media and dielectrics.
    Type: Application
    Filed: February 3, 2012
    Publication date: November 7, 2013
    Applicant: E.I. DuPont de Nemous and Company
    Inventor: Mark L. Robin
  • Publication number: 20130152626
    Abstract: A composition is described including a first fluorinated hydrocarbon compound according to the formula: wherein R1, R2, R3, R4, and R5 are each independently H, F, Cl, Br, or I, n is 0, 1, 2, or 3, and each R? group is independently H, F, Cl, Br, or I, with the proviso that zero to three of R1, R2, R3, R4, and R5 are F; a second fluorinated hydrocarbon compound according to the formula: wherein m is 0 or 1, and R6, R7, and R8 are each independently H, F, Cl, Br, or I, with the proviso that one of R6, R7, and R8 is F; and a third fluorinated hydrocarbon compound according to the formula: wherein R9, R10, R11, R12 and R13 are each independently H, Cl, Br, or I.
    Type: Application
    Filed: August 11, 2011
    Publication date: June 20, 2013
    Applicant: CARRIER CORPORATION
    Inventors: Yinshan Feng, Parmesh Verma
  • Publication number: 20130134367
    Abstract: The present invention relates to an electric insulating oil inspection method for determining whether or not an inhibitor-consuming substance is present in an electric insulating oil. The inhibitor-consuming substance is such a substance that causes to decrease over time a concentration of an inhibitor which is added to the electric insulating oil to inhibit copper sulfide from being generated on an insulating paper immersed in the electric insulating oil. The electric insulting oil inspection method includes steps of: preserving the electric insulating oil at a predetermined condition, measuring a concentration of the inhibitor, and determining that the inhibitor-consuming substance is present upon condition that a decrement of the concentration of the inhibitor relative to an initial concentration of the inhibitor becomes not less than a specified amount within a predetermined period.
    Type: Application
    Filed: December 13, 2010
    Publication date: May 30, 2013
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Fukutaro Kato, Eiichi Nagao, Tsuyoshi Amimoto, Satoru Toyama, Kota Mizuno
  • Publication number: 20130119292
    Abstract: 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 afire by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as dielectrics.
    Type: Application
    Filed: January 10, 2011
    Publication date: May 16, 2013
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark Robin, Joan Ellen Bartelt
  • Patent number: 8440116
    Abstract: 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: Grant
    Filed: April 11, 2008
    Date of Patent: May 14, 2013
    Inventors: Mohammed Amanullah, Syed M. Islam, Samer Chami, Gary Ienco
  • Patent number: 8435426
    Abstract: The electrical contact enhancing coating is a composition that includes finely divided precious metal particles mixed with a dielectric carrier to form a coating. The dielectric carrier is a vegetable oil (preferably soybean-based) carrier of the type used as a dielectric coolant in power transformers, and is preferably high in antioxidant content. In a first embodiment, the precious metal is 100% silver having an average particle size of about 5-10 ?m. In a second embodiment, the precious metal is about 65-85% silver and 15-35% gold (average particle size 0.5-1.8 ?m), by weight. In a third embodiment, the precious metal is about 65-85% silver, 12.5-30% gold, and 2.5-5% palladium (average particle size 0.5-1.8 ?m), by weight. The precious metals may be cryogenically treated prior to mixing with the dielectric carrier.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: May 7, 2013
    Inventors: Brian K. Kyle, Timothy R. Mrock
  • Publication number: 20130069022
    Abstract: An electrorheological fluid comprises a nanoparticle composition comprising a nanoparticle, uncoated or coated with a polymeric or metallic coating and covalently bonded to or coated on a surface of a polymeric or inorganic particle; and a dielectric fluid having a dielectric constant lower than that of the nanoparticle composition. A nanoparticle composition also comprises a carbon-based nanoparticle, covalently bonded to or coated on a surface of a conjugated polymer particle or inorganic particle, wherein the nanoparticle composition is a dielectric material.
    Type: Application
    Filed: September 19, 2011
    Publication date: March 21, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Terry R. Bussear, Soma Chakraborty, Michael H. Johnson
  • Publication number: 20130062314
    Abstract: This disclosure relates to methods and systems to reduce high voltage breakdown jitters in liquid dielectric switches. In particular, dielectric liquids have been produced that contain a suspension of nanoparticles and a surfactant to reduce the breakdown jitter. In one embodiment, the suspended nanoparticles are Barium Strontium Titanate (BST) nanoparticles.
    Type: Application
    Filed: May 23, 2012
    Publication date: March 14, 2013
    Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURI
    Inventors: Randy D. Curry, Christopher Yeckel, Daniel Crosby
  • Patent number: 8361351
    Abstract: 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: Grant
    Filed: January 13, 2012
    Date of Patent: January 29, 2013
    Assignee: Cooper Industries, Inc.
    Inventors: Kevin J. Rapp, Jerry L. Corkran, Gary A. Gauger, Charles Patrick McShane
  • Patent number: 8324302
    Abstract: A method is provided that includes providing a resin in liquid form. The resin can be partially cured, and subsequent to partially curing the resin, the resin can be mixed with filler particles. The resin and filler particles can be mixed, say, in a planetary mixer, and can be exposed to an ambient pressure less than atmospheric pressure during mixing. Subsequent to mixing the resin and filler particles, the resin can be fully cured. The fully-cured resin can be disposed between first and second conductive components configured to be maintained at different potentials, such as between a phase conductor and a ground conductor.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: December 4, 2012
    Assignee: General Electric Company
    Inventors: Thangavelu Asokan, Sujatha Pushpakanth, Shalini Thimmegowda
  • Patent number: 8318041
    Abstract: 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: Grant
    Filed: April 20, 2007
    Date of Patent: November 27, 2012
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Jochen Uebe, Erich Seider, Silvia Gaul, Holger Bose
  • Patent number: 8308994
    Abstract: A stable colloidal suspension of carbon-based nanomaterials in a solvent has a stable colloidal suspension of nanodiamond particles having at least one additional carbon-based electromagnetic radiation attenuating nanomaterial nanomaterials disbursed and agitated into the solvent to produce said suspension. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: November 13, 2012
    Assignee: International Technology Center
    Inventors: Olga Shenderova, Garry B. Cunningham, Gary Elder McGuire
  • Patent number: 8298451
    Abstract: This invention relates to reformer distillates as gassing additives for transformer oils. The reformer distillates have a 1-ring and 2-ring aromatics content of at least 98%, and are added such that the transformer oil contains less than 10 wt % of reformer distillate. The invention also relates to a method for preparing transformer oils containing reformer distillates and having excellent gassing tendency, oxidative stability, viscosity and volatility.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: October 30, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: S. Darden Sinclair, Martin A. Krevalis, Dominick N. Mazzone, Jean-Luc Martin, Louis F. Burns
  • Patent number: 8268199
    Abstract: Provided herein are dielectric fluids comprising at least one estolide compound of formula: in which n is an integer equal to or greater than 0; m is an integer equal to or greater than 1; R1, independently for each occurrence, is selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; R2 is selected from hydrogen and optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched; and R3 and R4, independently for each occurrence, are selected from optionally substituted alkyl that is saturated or unsaturated, and branched or unbranched. Also provided herein are uses of dielectric fluids and electrical devices such as transformers that comprise a dielectric fluid comprising at least one estolide compound.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: September 18, 2012
    Assignee: LubriGreen Biosynthetics, LLC
    Inventors: Jeremy Forest, Jakob Bredsguard, Travis Thompson
  • Patent number: 8262924
    Abstract: 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: Grant
    Filed: May 20, 2011
    Date of Patent: September 11, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventor: Mark L. Robin
  • Patent number: 8226859
    Abstract: Insulation fluids comprising polytrimethylene ether glycol esters are provided. The insulation fluids can be used in electrical apparatuses.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: July 24, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Lisa C. Bates, Hari Babu Sunkara
  • Publication number: 20120142515
    Abstract: An electronic device, such as a thin-film transistor, includes a substrate and a dielectric layer formed from a dielectric composition. The dielectric composition includes a dielectric material, a crosslinking agent, and a thermal acid generator. In particular embodiments, the dielectric material comprises a lower-k dielectric material and a higher-k dielectric material. When deposited, the lower-k dielectric material and the higher-k dielectric material form separate phases. The thermal acid generator allows the dielectric layer to be cured at relatively lower temperatures and/or shorter time periods, permitting the selection of lower-cost substrate materials that would otherwise be deformed by the curing of the dielectric layer.
    Type: Application
    Filed: December 1, 2010
    Publication date: June 7, 2012
    Applicant: XEROX CORPORATION
    Inventors: Yiliang Wu, Ping Liu, Anthony James Wigglesworth, Nan-Xing Hu
  • Patent number: 8187508
    Abstract: Disclosed is a base agent for electrical insulating oils, which mainly contains an esterified product of glycerin and a linear or branched, saturated or unsaturated fatty acid having 6-14, preferably 8-12 carbon atoms. This base agent for electrical insulating oils is excellent in electrical characteristics, oxidation stability, cooling characteristics, flame retardance and safety. In particular, this agent for electrical insulating oils can meet energy/environmental problems by using an edible oil and fat, which is obtained by using a fatty acid derived from a vegetable oil as a raw material, as the linear or branched, saturated or unsaturated fatty acid having 6-14 carbon atoms.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: May 29, 2012
    Assignees: Lion Corporation, Japan AE Power Systems Corporation
    Inventors: Takaaki Kanoh, Jun-ichi Yamada, Hidenobu Koide, Yasunori Hatta
  • Patent number: 8178739
    Abstract: A process, comprising: a. selecting a kinematic viscosity; b. feeding an olefin feed comprising a propylene to an oligomerization zone; c. tuning an oligomerizing step to produce a base oil having the kinematic viscosity and a viscosity index from 20 to 90. A process, comprising: a. selecting a kinematic viscosity that is greater than 20 mm2/s; b. feeding a feed comprising propylene to an oligomerization zone; and c. adding a Brönsted acid to produce a base oil. A process, comprising tuning a step in an oligomerization zone comprising a propylene and an ionic liquid catalyst to produce a base oil having: a. a high kinematic viscosity; b. a viscosity index from 25 to 90; and c. a low pour point. A base oil, comprising oligomerized olefins, wherein the base oil has: a. a high kinematic viscosity; b. a viscosity index from 25 to 90; and c. a low pour point.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: May 15, 2012
    Assignee: Chevron U.S.A. Inc.
    Inventors: Saleh Elomari, Stephen J. Miller
  • Publication number: 20120056124
    Abstract: 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 ethanol, 2-chloro-3,3,3-trifluoropropene, methanol, E-1,1,1,4,4,5,5,5-octafluoro-2-pentene, 2-bromo-3,3,3-trifluoropropene, methyl acetate, acetone, chloroform, n-hexane or 1-chloro-3,3,3-trifluoropropene. 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: Application
    Filed: June 2, 2010
    Publication date: March 8, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Mark Robin