Si-containing Patents (Class 252/573)
  • Patent number: 10167414
    Abstract: The present invention is directed to a specific class on pigment reactive silicone polymers that contain both higher alkyl groups and reactive trialkoxy silanes present in the backbone of a specific silicone polymer. By carefully selecting the proper reactive silicone polymer and treating the pigment with said polymer a surprisingly stable and efficient coating is applied the pigment, most importantly ZnO and TiO2 as to render photo stability and alter solubility of the pigment in a variety of solvents.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: January 1, 2019
    Inventor: Thomas O'Lenick
  • Patent number: 9764353
    Abstract: A method of producing a layer of a UV-cured silicone rubber composition on a substrate surface, including applying a primer composition to the substrate surface and hardening the primer composition followed by applying a UV-curable silicone rubber composition, and UV-curing the curable silicone rubber composition. At least one UV-sensitive crosslinking catalyst selected from compounds which initiate and promote curing of UV-curable silicone rubber compositions, is added to the silicone primer composition in any desired sequence before, during or after hardening of the silicone primer composition.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: September 19, 2017
    Assignee: ABB Research Ltd.
    Inventors: Jan Van Loon, Marco Schneider, Patrick Meier, Xavier Kornmann
  • Patent number: 9693563
    Abstract: Complexes of boron and alkyl ether terminated silane polyethers are described. Compositions incorporating such complexes are also described. In addition to the boron-silane polyether complex, such compositions include water and one or more enzymes. Compositions further containing actives and/or polyols are also described. Uses for such compositions include disinfection.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: July 4, 2017
    Assignee: 3M Innovative Properties Company
    Inventor: Vishalkumar Y. Joshi
  • 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
  • Publication number: 20140264199
    Abstract: The present invention is directed toward compositions suitable for use as dielectric fluids, lubricant fluids and biodiesel fluids. Compositions described herein are obtained from a saturated, unsaturated or combinations of both monol, diol, triol or polyol acyl ester based fluid and/or a non-ester based fluid and 2,4,6-tris(di-C1-C6-alkylaminomethyl)phenol and/or the carboxylic acid salt of 2,4,6-tris(di-C1-C6-alkylaminomethyl)phenol. These compositions demonstrate improved oxidative stability and/or hydrolytic stability at higher use temperatures.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 18, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Hari Babu Sunkara, Raja Hari Poladi
  • Patent number: 8785799
    Abstract: 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: Grant
    Filed: January 8, 2013
    Date of Patent: July 22, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventor: Jay Robert Dorfman
  • 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: 8709303
    Abstract: A dielectric insulation medium including a hydrofluoro monoether, the hydrofluoro monoether containing at least three carbon atoms. The insulation medium according has high insulation capabilities, in particular a high dielectric strength, and at the same time a low GWP. The invention further includes an insulation medium which is chemically and thermally stable also at temperatures above 140° C., which is non-toxic or has a low toxicity level, and which in addition is non-corrosive and non-explosive.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: April 29, 2014
    Assignee: ABB Research Ltd.
    Inventors: Navid Mahdizadeh, Thomas Alfred Paul, Judith Kessler, Markus Bujotzek, Patrick Stoller, Max-Steffen Claessens, Per Skarby
  • Patent number: 8654070
    Abstract: 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: Grant
    Filed: March 15, 2010
    Date of Patent: February 18, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Nami Tokunaga, Jun Kawahara, Daisuke Nakayama, Yasuo Yamamoto, Hiroaki Moriyama
  • 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
  • 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: 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: 8222457
    Abstract: 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: Grant
    Filed: November 19, 2007
    Date of Patent: July 17, 2012
    Assignee: Chemetall GmbH
    Inventors: Wolfram Lerner, Jens Röder, Hannes Vitze, Matthias Wagner, Ulrich Wietelmann
  • Patent number: 8120840
    Abstract: An electrorheological fluid is provided. The electrorheological fluid includes polarizing particles and a dispersion medium in which the polarizing particles are dispersed. The polarizing particles may include silica particles. The dispersion medium may include silicon oil. The silicon oil may be modified silicon oil including at least one functional group selected from the group consisting of a hydroxyl group (—OH group), an amine group (—NH2 group), a mercapto group (—SH group), and a carboxy group (—COOH group).
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: February 21, 2012
    Assignees: Inha-Industry Partnership Institute, Samsung Electronics Co., Ltd.
    Inventors: Hyoung-Jin Choi, Ying-Dan Liu, Bo-Mi Lee, Tae-Sang Park
  • Patent number: 8101098
    Abstract: The present invention relates to a mixture of an oligomeric, blocked aminosilane (azomethine structure) and a monomeric, blocked, primary amine (azomethine structure). This mixture is suitable in particular as a curing agent, crosslinker and adhesion promoter.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: January 24, 2012
    Assignee: Construction Research & Technology GmbH
    Inventor: Helmut Mack
  • Patent number: 8097187
    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: September 23, 2010
    Date of Patent: January 17, 2012
    Assignee: Cooper Industries, Inc.
    Inventors: Kevin J. Rapp, Jerry L. Corkran, Gary A. Gauger, Charles Patrick McShane
  • Patent number: 8080185
    Abstract: A dielectric gaseous compound which exhibits the following properties: a boiling point in the range between about ?20° C. to about ?273° C.; non-ozone depleting; a GWP less than about 22,200; chemical stability, as measured by a negative standard enthalpy of formation (dHf<0); a toxicity level such that when the dielectric gas leaks, the effective diluted concentration does not exceed its PEL; and a dielectric strength greater than air.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: December 20, 2011
    Assignee: Honeywell International Inc.
    Inventors: Matthew H. Luly, Robert G. Richard
  • Publication number: 20110198545
    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: Application
    Filed: February 18, 2010
    Publication date: August 18, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Thangavelu Asokan, Sujatha Pushpakanth, Shalini Thimmegowda
  • Publication number: 20110135847
    Abstract: A spin-on dielectric of novel composition formed as a sol comprising an a source of silicon such as an orthosilicate ester, alone or in combination with an alkylated orthosilicate ester, a polar solvent, water, an acid catalyst, which may be a strong acid catalyst, and an amphiphilic block copolymer surfactant, optionally including an organic acid, a co-solvent and/or a reactive solvent. Also provided is a method of formulating the sol, a film made from the spin-on dielectric that has desirable electrical and mechanical properties, methods for treating the film described to optimize the film's electrical and mechanical performance, and methods for depositing the film onto silicon, steel or other surfaces.
    Type: Application
    Filed: January 20, 2011
    Publication date: June 9, 2011
    Inventors: Mark L. F. Phillps, Travis P.S. Thoms
  • Publication number: 20110122480
    Abstract: 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: Application
    Filed: April 22, 2010
    Publication date: May 26, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATONS RESEARCH INSTITUTE
    Inventors: Chul Am KIM, Hyeonjung Yoo, Kyung Soo Suh, Seung Youl Kang
  • Patent number: 7931830
    Abstract: A dielectric composition which is adapted for combining with a supporting material ( e.g., fiber-glass cloth) to form a dielectric layer usable in circuitized such as PCBs, chip carriers and the like. As such a layer, it includes a resin, a predetermined percentage by weight of a filler, and, significantly, only a minor amount of bromine. A circuitized substrate comprised of one or more of these dielectric layers and one or more conductive layers is also provided.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: April 26, 2011
    Assignee: Endicott Interconnect Technologies, Inc.
    Inventors: Robert M. Japp, Voya R. Markovich, Kostas I. Papathomas
  • Publication number: 20110043441
    Abstract: 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: Application
    Filed: March 15, 2010
    Publication date: February 24, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Nami TOKUNAGA, Jun KAWAHARA, Daisuke NAKAYAMA, Yasuo YAMAMOTO, Hiroaki MORIYAMA
  • Publication number: 20110014796
    Abstract: This invention relates to a dipping solution used in a process for producing a siliceous film. The present invention provides a dipping solution and a siliceous film-production process employing the solution. The dipping solution enables to form a homogeneous siliceous film even in concave portions of a substrate having concave portions and convex portions. The substrate is coated with a polysilazane composition, and then dipped in the solution before fire. The dipping solution comprises hydrogen peroxide, a foam-deposit inhibitor, and a solvent.
    Type: Application
    Filed: March 3, 2009
    Publication date: January 20, 2011
    Inventor: Masanobu Hayashi
  • Publication number: 20100314590
    Abstract: Silicon precursors for forming silicon-containing films in the manufacture of semiconductor devices, such as films including silicon carbonitride, silicon oxycarbonitride, and silicon nitride (Si3N4), and a method of depositing the silicon precursors on substrates using low temperature (e.g., <550° C.) chemical vapor deposition processes, for fabrication of ULSI devices and device structures.
    Type: Application
    Filed: August 24, 2010
    Publication date: December 16, 2010
    Applicant: Advanced Technology Materials, Inc.
    Inventors: Ziyun WANG, Chongying Xu, Bryan Hendrix, Jeffrey Roeder, Tianniu Chen, Thomas H. Baum
  • Publication number: 20100301344
    Abstract: A dielectric layer for an electronic device, such as a thin-film transistor, is provided. The dielectric layer comprises a molecular glass. The resulting dielectric layer is very thin, pure, and stable. Processes and compositions for fabricating such a dielectric layer are also disclosed.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 2, 2010
    Applicant: XEROX CORPORATION
    Inventors: Yiliang Wu, Ping Liu, Nan-Xing Hu
  • Patent number: 7815821
    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: April 13, 2009
    Date of Patent: October 19, 2010
    Assignee: Cooper Industries, Inc.
    Inventors: Kevin J. Rapp, Jerry L. Corkran, Gary A. Gauger, Charles Patrick McShane
  • Publication number: 20090298671
    Abstract: Silica-based materials and films having a dielectric constant of 3.7 or below and compositions and methods for making and using same are disclosed herein. In one aspect, there is provided a composition for preparing a silica-based material comprising an at least one silica source, a solvent, an at least one porogen, optionally a catalyst, and optionally a flow additive wherein the solvent boils at a temperature ranging from 90° C. to 170° C. and is selected from the group of compounds represented by the following formulas: HO—CHR8—CHR9—CH2—CHR10R11 where R8, R9, R10 and R11 can independently be an alkyl group ranging from 1 to 4 carbon atoms or a hydrogen atom; and R12—CO—R13 where R12 is a hydrocarbon group having from 3 to 6 carbon atoms; R13 is a hydrocarbon group having from 1 to 3 carbon atoms; and mixtures thereof.
    Type: Application
    Filed: August 10, 2009
    Publication date: December 3, 2009
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Scott Jeffrey Weigel, Shrikant Narendra Khot, James Edward Mac Dougall, Thomas Albert Braymer, John Francis Kirner, Brian Keith Peterson
  • Publication number: 20090267058
    Abstract: A method for fabricating a sol-gel film composition for use in a thin film transistor is disclosed. The method BB includes fabricating the sol-gel dielectric composition by solution processing at a temperature in the range 60° C. to 225° C. The sol-gel film made by the method, and an organic thin-film Si wafer Si wafer transistor incorporating the sol-gel film are also disclosed.
    Type: Application
    Filed: May 22, 2007
    Publication date: October 29, 2009
    Inventors: Ebinazar Benjamin Namdas, Tommy Cahyadi, G. Subodh Mhaisalkar, Pooi See Lee, Zhikuan Chen, Yeng Ming Lam, Lixin Song
  • Publication number: 20090250652
    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: Application
    Filed: April 20, 2007
    Publication date: October 8, 2009
    Applicant: FRAUNHOFER-GESELLSCHAFT zur Forderung der Angewandten Forschung e.V
    Inventors: Jochen Uebe, Erich Seider, Silvia Gaul, Holger Böse
  • Publication number: 20080171136
    Abstract: A composition of matter and a structure fabricated using the composition. The composition comprising: a resin; polymeric nano-particles dispersed in the resin, each of the polymeric nano-particle comprising a multi-arm core polymer and pendent polymers attached to the multi-arm core polymer, the multi-arm core polymer immiscible with the resin and the pendent polymers miscible with the resin; and a solvent, the solvent volatile at a first temperature, the resin cross-linkable at a second temperature, the polymeric nano-particle decomposable at a third temperature, the third temperature higher than the second temperature, the second temperature higher than the first temperature, wherein a thickness of a layer of the composition shrinks by less than about 3.5% between heating the layer from the second temperature to the third temperature.
    Type: Application
    Filed: March 24, 2008
    Publication date: July 17, 2008
    Inventors: Geraud Jean-Michel Dubois, James Lupton Hedrick, Ho-Cheol Kim, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Muthumanickam Sankarapandian, Linda Karin Sundberg, Willi Volksen
  • Patent number: 7141188
    Abstract: The present invention provides a composition comprising: (a) dielectric material; and (b) porogen comprising at least two fused aromatic rings wherein each of the fused aromatic rings has at least one alkyl substituent thereon and a bond exists between at least two of the alkyl substituents on adjacent aromatic rings. Preferably, the dielectric material is a composition comprising (a) thermosetting component comprising (1) optionally monomer of Formula I as set forth below and (2) at least one oligomer or polymer of Formula II as set forth below where Q, G, h, I, I, and w are as set forth below and (b) porogen.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: November 28, 2006
    Assignee: Honeywell International Inc.
    Inventors: Bo Li, Nancy Iwamoto, Boris Korolev, Paul G. Apen, Kreisler Lau, John G. Sikonia, Ananth Naman, Amauel Gebrebrhan, Nassrin Sleiman, Ruslan Zherebin
  • Patent number: 6900923
    Abstract: A film suitable for use as a light-modulating unit of a suspended particle device (SPD) light valve. The film comprises a siloxane matrix polymer which has a refractive index>1.4630 and has droplets of a liquid light valve suspension distributed within the matrix. The liquid light valve suspension preferably comprises a polyalkyl (meth)acrylate and/or fluorinated (meth)acrylate suspending polymer and optionally may comprise one or more non-polymeric liquids.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: May 31, 2005
    Assignee: Research Frontiers Incorporated
    Inventors: Srinivasan Chakrapani, Steven M. Slovak
  • Patent number: 6764718
    Abstract: A method for forming an electrically insulating thin film coating the surface of an electronic device with an electrically insulating thin-film-forming resin composition and crosslinking the composition by a method selected from the group consisting of heating and irradiation with high-energy rays.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: July 20, 2004
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Takashi Nakamura, Kiyotaka Sawa, Akihiko Kobayashi, Katsutoshi Mine
  • Patent number: 6673274
    Abstract: The invention provides dielectric compositions and methods of forming the same. The dielectric compositions may be used to form dielectric layers in electronic devices such as multilayer ceramic capacitors (MLCCs) and, in particular, MLCCs which include base metal electrodes. The dielectric compositions include a barium titanate-based material and several dopants. The type and concentration of each dopant is selected to provide the dielectric composition with desirable electrical properties including a stable capacitance over a temperature range, a low dissipation factor, and a high capacitance. Preferably, MLCCs including dielectric layers formed with the composition satisfy X7R and/or X5R requirements.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: January 6, 2004
    Assignee: Cabot Corporation
    Inventors: Sridhar Venigalla, Dorran L. Schultz
  • Patent number: 6645403
    Abstract: Disclosed herein is a multiphase electrorheological fluid having an improved yield stress and stability. The multiphase electrorheological fluid comprises a first liquid phase component as a continuous oil phase; particles dispersed in the continuous oil phase; and a second liquid phase component which consists of emulsion liquid droplets and is dispersed in the continuous oil phase while being immiscible with the continuous oil phase. The dispersed liquid droplets have higher electrical conductivity and dielectric constant than those of the continuous oil phase.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: November 11, 2003
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: O Ok Park, Byung Doo Chin
  • Publication number: 20030151031
    Abstract: The present invention provides a composition comprising: (a) dielectric material; and (b) porogen comprising at least two fused aromatic rings wherein each of the fused aromatic rings has at least one alkyl substituent thereon and a bond exists between at least two of the alkyl substituents on adjacent aromatic rings. Preferably, the dielectric material is a composition comprising (a) thermosetting component comprising (1) optionally monomer of Formula I as set forth below and (2) at least one oligomer or polymer of Formula II as set forth below where Q, G, h, I, I, and w are as set forth below and (b) porogen.
    Type: Application
    Filed: May 29, 2002
    Publication date: August 14, 2003
    Inventors: Bo Li, Nancy Iwamoto, Boris Korolev, Paul G. Apen, Kreisler Lau, John G. Sikonia, Ananth Naman, Amauel Gebrebrhan, Nassrin Sleiman, Ruslan Zherebin
  • Publication number: 20030010962
    Abstract: An adhesive in the form of a liquid epoxy resin composition comprising (A) a liquid epoxy resin, (B) 20 to 90% by weight based on the entire composition of an inorganic filler having an average particle size from more than 1 &mgr;m to 20 &mgr;m and containing up to 1% by weight of a fraction of particles having a particle size of at least 45 &mgr;m and optionally, (C) a silicone-modified resin is suitable for bonding optical elements in optical devices.
    Type: Application
    Filed: May 21, 2002
    Publication date: January 16, 2003
    Inventors: Haruyoshi Kuwabara, Miyuki Wakao, Toshio Shiobara
  • Publication number: 20020171066
    Abstract: The invention provides dielectric compositions and methods of forming the same. The dielectric compositions may be used to form dielectric layers in electronic devices such as multilayer ceramic capacitors (MLCCs) and, in particular, MLCCs which include base metal electrodes. The dielectric compositions include a barium titanate-based material and several dopants. The type and concentration of each dopant is selected to provide the dielectric composition with desirable electrical properties including a stable capacitance over a temperature range, a low dissipation factor, and a high capacitance. Preferably, MLCCs including dielectric layers formed with the composition satisfy X7R and/or X5R requirements.
    Type: Application
    Filed: April 11, 2001
    Publication date: November 21, 2002
    Inventors: Sridhar Venigalla, Dorran L. Schultz
  • Publication number: 20020052442
    Abstract: 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: Application
    Filed: April 30, 1999
    Publication date: May 2, 2002
    Inventors: ECKHARD WENDT, ROBERT BLOODWORTH, MARKUS MECHTEL, BERND KLINKSIEK, OLAF HALLE
  • Patent number: 5948929
    Abstract: A fluorinated organosilicon compound is represented by formula (I).
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: September 7, 1999
    Assignee: FSO Limited
    Inventor: Vladimir Mileshkevich
  • Patent number: 5948852
    Abstract: 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: Grant
    Filed: August 7, 1997
    Date of Patent: September 7, 1999
    Assignee: GE Bayer Silicones GmbH & Co. KG
    Inventors: Eckhard Wendt, Robert Bloodworth, Markus Mechtel, Bernd Klinksiek, Olaf Halle
  • Patent number: 5871673
    Abstract: 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: Grant
    Filed: December 29, 1995
    Date of Patent: February 16, 1999
    Assignee: Fuji Electric Co., Ltd.
    Inventor: Yoshitake Nakagami
  • Patent number: 5672298
    Abstract: An electro-sensitive composition comprising a fluorine compound having a predetermined structure, and an electrically insulating medium capable of dissolving this fluorine compound when a voltage is applied thereto, is disclosed. This electro-sensitive composition has a straight chain or cyclic fluorocarbon, and fluorine compound particles possessing dissociable polarity, dispersed in an electrically insulating medium; by means of the application of a voltage to this electro-sensitive composition, the transparency and viscosity thereof can be easily adjusted.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: September 30, 1997
    Assignee: Fujikura Kasei Co., Ltd.
    Inventors: Kazuya Edamura, Yasufumi Otsubo
  • Patent number: 5510058
    Abstract: An electro-sensitive composition comprising a fluorine compound having a predetermined structure, and an electrically insulating medium capable of dissolving this fluorine compound when a voltage is applied thereto, is disclosed. This electro-sensitive composition has a straight chain or cyclic fluorocarbon, and fluorine compound particles possessing dissociable polarity, dispersed in an electrically insulating medium; by means of the application of a voltage to this electro-sensitive composition, the transparency and viscosity thereof can be easily adjusted.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: April 23, 1996
    Assignee: Fujikura Kasei Co., Ltd.
    Inventors: Kazuya Edamura, Yasufumi Otsubo
  • Patent number: 5510549
    Abstract: The invention provides a fiber optic cable and a diamondoid-based viscous filling material for a fiber optic cable.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: April 23, 1996
    Assignee: Mobil Oil Corporation
    Inventors: Henry Ashjian, Dong-Ming Shen, Margaret M. Wu
  • Patent number: 5496483
    Abstract: Disclosed are electroviscous liquid essentially containingA) A linear and/or branched, eventually functionalized, polyether or the monomers thereof, the conversion product of such polyether resp. such monomer with mono- or oligo functional compounds and eventually additional additives, andB) a dispersing agent, andC) a non-aqueous dispersion-medium.In an embodiment a cavity contains the electroviscous liquid and has parts movable with relation to each other and electrode means for generating an electrical field within the cavitywherein applying the electrical field increases the viscosity of the liquid.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: March 5, 1996
    Assignee: Bayer AG
    Inventors: Udo Herrmann, Gu/ nter Oppermann, Gu/ nther Penners, Roland Flindt, Hans-Horst Steinbach
  • Patent number: 5480573
    Abstract: The present invention relates to an electrorheological fluid comprising solid particles, an alkylmethylsiloxane compound, and an organofluoro compound. Preferred solid particles include zeolite and sulfate ionomers of aminofunctional siloxanes. The ER fluids of the present invention are characterized by improved dispersion stability, enhanced lubricity, and high yield stresses.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: January 2, 1996
    Assignee: Dow Corning Corporation
    Inventors: Loren D. Durfee, Randall G. Schmidt
  • Patent number: 5391314
    Abstract: An electroviscous fluid composition comprising a dispersion medium of two nonmiscible components (A) and (B) as below, the volum ratio of (A)/(B) being in the ratio 99/1-1/99, and a dispersoid (C) as below; wherein the true specific gravity of the dispersoid (C) is greater than the specific gravity of said component (A) and less than the specific gravity of said component (B);Component (A):A silicone oil of general formula (I):R.sub.a SiO.sub.(4-a)/2(wherein R, which may be similar or dissimilar, are monovalent hydrocarbon groups with 1-18 carbon atoms and "a" lies in the range 1.8<a<3.0.) having a viscosity of 1-1,000 centistokes at 25.degree. C. and a specific gravity of 0.8-1.5,Component (B):A synthetic fluorinated oil having a viscosity of 1-1,000 centistokes at 25.degree. C. and a specific gravity greater than 1.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: February 21, 1995
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masahiko Minemura, Satoshi Kuwata
  • Patent number: 5294426
    Abstract: Electrorheological fluid compositions of this invention are dispersions in an electrically insulating medium of 10 to 50% by volume of spherical silica particles prepared by hydrolyzing a silicon alkoxide of the general formula Si(OR).sub.4 in which R is an alkyl group in the presence of an alkali catalyst and drying at or below 500.degree. C., show excellent fluidity in the absence of an applied voltage, vary reversibly to the state of high viscosity or even to the state of gel on application of a voltage, and have good storage stability.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: March 15, 1994
    Assignee: Colloid Research Institute
    Inventors: Masahiro Sekine, Yasufumi Otsubo, Shingo Katayama
  • Patent number: 5250209
    Abstract: A water washable thermally conductive grease useful for thermal coupling of electronic chips and heat sinks in electronic modules comprises a hydrophilic alkylene oxide modified silicone carrier, and up to 90 weight percent of a microparticulate thermally conductive filler. In a preferred embodiment, the thixotropic dielectric composition further comprises an antioxidant and an ionic surfactant to promote wetting/dispersion of the microparticulate filler. The thermally conductive grease is non-corrosive, resistant to shear induced phase destabilization and capable of being washed from module surfaces with aqueous solutions. Substitution of the present hydrophilic based greases for art-recognized solvent washable greases eliminates use of non-aqueous solvents in electronic module processing/reprocessing operations.
    Type: Grant
    Filed: April 15, 1992
    Date of Patent: October 5, 1993
    Assignee: Thermoset Plastics, Inc.
    Inventors: William L. Jamison, Gary J. Larsen, George E. Sears, Jr.