Antistatic Compositions Patents (Class 524/910)
  • Patent number: 8742047
    Abstract: A multifunctional polymerizable ionic liquid is described comprising an anion and a cationic group having at least two ethylenically unsaturated polymerizable groups, each bonded to the cationic group via a divalent non-alkyl linking group. The multifunctional linking groups independently comprise a heteroatom such as oxygen or nitrogen. The linking groups may independently comprise one or more linkages such as an amide, urea, or ether linkage and more typically a urethane or ester linkage. The ethylenically unsaturated polymerizable groups are typically (meth)acrylate groups. Coatings and coated articles are also described.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: June 3, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Kevin M. Lewandowski, Larry R. Krepski, Yizhong Wang, Joel D. Oxman, Peiwang Zhu, Brian N. Holmes, Thomas P. Klun, Bryan V. Hunt
  • Patent number: 8668845
    Abstract: A method for preparing an electrostatic dissipative polymer and a blend of a thermoplastic polymer and the ESD polymer is disclosed. The method for preparing an electrostatic dissipative polymer includes the step of polymerizing the electrostatic dissipative polymer in the presence of a reactive solvent and lithium salt dissolved in the reactive solvent, wherein the amount of the reactive solvent is from 0.1 to 20 weight parts based on 100 weight parts of the produced electrostatic dissipative polymer, the amount of lithium salt is from 0.1 to 5 weight parts based on 100 weight parts of the produced electrostatic dissipative polymer, and the reactive solvent is aliphatic glycol having from 2 to 8 carbon atoms and having a primary alcohol group, or aromatic glycol having from 6 to 10 carbon atoms.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: March 11, 2014
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Chang-Min Suh, Tae-Woong Lee, Dong-Sik Kim
  • Patent number: 8545728
    Abstract: A method for preparing an electrostatic dissipative polymer and a blend of a thermoplastic polymer and the ESD polymer is disclosed. The method for preparing an electrostatic dissipative polymer includes the step of polymerizing the electrostatic dissipative polymer in the presence of a reactive solvent and lithium salt dissolved in the reactive solvent, wherein the amount of the reactive solvent is from 0.1 to 20 weight parts based on 100 weight parts of the produced electrostatic dissipative polymer, the amount of lithium salt is from 0.1 to 5 weight parts based on 100 weight parts of the produced electrostatic dissipative polymer, and the reactive solvent is aliphatic glycol having from 2 to 8 carbon atoms and having a primary alcohol group, or aromatic glycol having from 6 to 10 carbon atoms.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: October 1, 2013
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Chang-Min Suh, Tae-Woong Lee, Dong-Sik Kim
  • Patent number: 8497326
    Abstract: Disclosed are ionomer compositions neutralized by a combination of cesium and potassium that have antistatic properties. Also disclosed are articles, including laminates and monolayer or multilayer structures comprising such compositions to which neither powders nor dusts easily adhere electrostatically.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: July 30, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Kazuyuki Nakata, David J. Walsh
  • Patent number: 7629401
    Abstract: The present invention provides an antistatic composition including: a polymer (A) containing a monomer unit represented by the following general formula (1): where R1 represents a hydrocarbon group having a benzene ring, A represents a methyl group or an ethyl group, and a plurality of A's may be the same or different from each other, m and n, each of which is an average polymerization degree of an oxyalkylene group, each represent a numeral of 1 or more, and p represents a numeral of 2 or more; and a low-molecular-weight anionic compound (B).
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: December 8, 2009
    Assignee: Adeka Corporation
    Inventors: Tetsuji Abe, Hiroaki Shirai, Takayuki Tsuda
  • Patent number: 7375150
    Abstract: An antistatic composition that is excellent in thermo stability, is free from the problem of bleeding-out, exhibits its effect independently of humidity, has immediate effectiveness, and also exhibits excellent and persistent antistatic properties, and a method for producing the composition are provided. The antistatic composition comprises a predetermined alkali metal salt or alkaline earth metal salt, and resin.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: May 20, 2008
    Assignee: Sanko Chemical Industry Co., Ltd.
    Inventor: Noriaki Fujihana
  • Patent number: 7361291
    Abstract: Polymer compositions comprising a) a polymer substrate selected from the group consisting of the polyolefins, polyesters, polyamides and polylactic acids and b) a combination of i) at least one permanent antistatic additive selected from the group consisting of the polyetheresteramides and ii) at least one migratory antistatic additive selected from the group consisting of the alkylsulfonic acid salts, the alkyl diethanolamines and the alkyl diethanolamides, are effectively antistatic.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: April 22, 2008
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Hui Chin, Christopher J. Fagouri
  • Patent number: 7361706
    Abstract: A water- and oil-repellent, antistatic composition comprises (a) at least one nonpolymeric ionic salt consisting of (i) at least one cation selected from the group consisting of monovalent metal cations, divalent metal cations, and organic onium cations, and (ii) at least one weakly coordinating anion, the conjugate acid of the anion having an acidity greater than or equal to that of a hydrocarbon sulfonic acid, and with the proviso that the anion is organic or fluoroorganic when the cation is a metal; (b) at least one fluorochemical repellency-imparting additive or repellent; and (c) at least one insulating material. The composition exhibits good antistatic and repellency characteristics.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: April 22, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Delton R. Thompson, Thomas P. Klun, William M. Lamanna
  • Patent number: 7341784
    Abstract: A light management film includes a first layer with a thermoplastic resin and a particular phosphonium sulfonate salt, and a second layer formed from a curable composition and having a refractive index of at least 1.5. The light management film exhibits reduced static electricity build-up and reduced dust attraction, making it easier to handle during fabrication of display devices such as the flat panel displays of laptop computers.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: March 11, 2008
    Assignee: General Electric Company
    Inventors: Chunghei Yeung, Yu Hu, Kevin Patrick Capaldo, Anne Elizabeth Herrmann, Yan Zhang, Bret Chisholm, Paul Smigelski, Dennis Joseph Coyle
  • Patent number: 7192538
    Abstract: An antistatic composition containing various types of polymers such as a polyamide, an aliphatic polyester, an elastomer thereof and a polyurethane elastomer, and a metal salt in specific amounts, and preferably, an antistatic composition in which an additive component such as an organic compound which has an —{O(AO)n}— group (A represents an alkylene group having 2 to 4 carbon atoms, and n represents an integer of 1 to 7) and all molecular chain terminals of which are CH3 and/or CH2 groups is compounded as needed.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: March 20, 2007
    Assignees: Sanko Chemical Industry Co., Ltd., Riken Technos Corporation
    Inventors: Noriaki Fujihana, Yoshiharu Tatsukami, Masaki Enomoto, Ikuo Ohkoshi
  • Patent number: 6964988
    Abstract: The invention relates to a thermoplastic composition comprising at least a copolymer of ethylene and an ?,?-unsaturated C3-C8 carboxylic acid, from about 10 to 99.9% neutralized with Lithium, and at least from about 0.01 wt % to about 2 wt % of a migrating antistatic agent. The invention also relates to films, sheet and molded articles comprising the above composition. The composition, film, sheet or molded article of the invention show good antistatic properties and preferably have a surface resistivity equal or less than 10E11. The composition, film, sheet or molded article of the invention can in particular be used as a protective transparent coating or layer on abrasion and scratch-exposed objects.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: November 15, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Karlheinz Hausmann
  • Patent number: 6777477
    Abstract: The invention relates to a coating solution for forming transparent conductive tin oxide film, a method for producing transparent conductive tin oxide film, and transparent conductive tin oxide film. The coating solution is capable of forming, from an inexpensive starting material such as tin oxide or tin chloride, strong tin oxide film endowed with excellent conductivity and transparency. The coating solution, which is intended to be used for forming, by way of coating, transparent conductive film predominantly containing tin oxide, contains stannic acid as its major component, and a water-soluble polymer having a polar group which is dissolved in the presence of at least one compound selected from the group consisting of ammonia and water-soluble amines.
    Type: Grant
    Filed: July 17, 2001
    Date of Patent: August 17, 2004
    Assignee: Toyo Gosei Kogyo Co., Ltd.
    Inventors: Kazuma Niume, Takashi Uchida, Masateru Kimura
  • Patent number: 6630196
    Abstract: An image display faceplate and its manufacturing method wherein an electroconductive organic polymeric transparent anti-static film is formed on the image lay faceplate by the steps of obtaining an aqueous solution by solving electroconductive organic polymers in water, applying the solution and heat-treating the applied faceplate panel at a relatively low temperature, and the solution are disclosed. The aqueous solution is prepared by the steps of: dissolving in alcohol an aqueous solution of polyethylene dioxythiophene which polystyrene sulphonate is doped 3 to; first-adding silicon alkoxide to the alcoholic solution; and second-adding pure water and an inorganic acid catalyst for hydrolysis after the first adding step.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: October 7, 2003
    Assignee: Orion Electric Co., Ltd.
    Inventors: Sang Youl Yoon, Chang Han Lee, Ho Seok Shon
  • Patent number: 6630528
    Abstract: A blend capable of being melt fabricated into an antistatic film which has improved antistatic action practically immediately after production comprises ethylene &agr;,&bgr;-ethylenically unsaturated C3-8 carboxylic acid copolymers having 0-90% of the carboxylic acid groups neutralized by metal ions, particularly sodium ions, and an antistatic effective amount of a polyoxyethylene sorbitan fatty acid, particularly Polyoxyethylene Sorbitan Monolaureate.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: October 7, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Karlheinz Hausmann, Bernard Rioux, Jean-Marie Francois
  • Patent number: 6521683
    Abstract: Antistatic agents for reducing and eliminating static electric charges on resins, particularly acrylic resins, including an antistatically effective amount of at least one substituted imidazolinium salt of alkylbenzene sulfonic acid having the formula: wherein R1 and R2 are the same or different and are alkyl groups having 6 or more carbon atoms. Also contemplated are methods, compositions and articles of manufacture which include the above mentioned antistatic agent and are added to or on the resins and further contain fatty acids or optical brighteners.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: February 18, 2003
    Assignee: Witco Corporation
    Inventors: Roy Simmons, William P. Chatham, Michael L. Whitlock, James J. Ward
  • Publication number: 20020099119
    Abstract: The present invention relates to water-borne ceramer compositions capable of being cured to form antistatic, abrasion resistant ceramers. The ceramer compositions comprise water having dispersed or dissolved therein a plurality of colloidal silica particles, a binder precursor, and an electrically conductive organic polymer. The present invention also relates to ceramer articles, for example, ceramer coatings and shaped ceramer particles made from the ceramer compositions and to methods of making the ceramer compositions and ceramer articles.
    Type: Application
    Filed: May 27, 1999
    Publication date: July 25, 2002
    Inventors: BRADLEY D. CRAIG, ZAYN BILKADI
  • Patent number: 6352654
    Abstract: Conductive polyphenylene ether-polyamide compositions having excellent ductility are prepared by melt blending polyphenylene ether, an unsaturated impact modifying polymer and a functionalizing compound in an initial step, optionally in combination with a portion of the polyamide, and subsequently melt blending with the remainder of the polyamide and conductive carbon black having a low volatiles content. A mixture of polyamides, illustrated by mixtures of polyamide-6 and polyamide-66, is employed.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: March 5, 2002
    Assignee: General Electric Company
    Inventors: Norberto Silvi, William R. Haaf, Mark Giammattei, Robert Hossan, Thomas J. Stanley, William D. Richards
  • Patent number: 6344507
    Abstract: The surface resistivity of polycarbonate resin is reduced and thus the antistatic properties improved by the inclusion of esters of branched fatty acids and polyhydroxylic compounds having at least one and desirably at least two free hydroxyl groups e.g. glycerol mono-iso-stearate. The reduction in surface resistivity can be acheived without a significant increase in haze or yellowness.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: February 5, 2002
    Assignee: Imperial Chemical Industries PLC
    Inventor: Franky Wylin
  • Patent number: 6284839
    Abstract: This invention relates to a blend of polymers having electrostatic dissipative properties. The blend in particular comprises a thermoplastic base polymer, electrostatic dissipative agent and acrylic ESD enhancer.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: September 4, 2001
    Assignee: The B.F. Goodrich Company
    Inventors: Timothy Edward Fahey, Robert Jay Coots, Gary Franklin Wilson
  • Patent number: 6238596
    Abstract: Described is a compliant and crosslinkable thermal interface material of at least one malenized rubber with maleic anhydride adducted to the molecule and at least one hydroxyl terminated olefin rubbers, and a method of making and using same; as well as a method of improving thermal conductivity of polymer systems.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: May 29, 2001
    Assignee: Johnson Matthey Electronics, Inc.
    Inventors: My N. Nguyen, James D. Grundy
  • Patent number: 6171523
    Abstract: Conductive polyphenylene ether-polyamide compositions having excellent ductility are prepared by melt blending polyphenylene ether, an unsaturated impact modifying polymer and a functionalizing compound in an initial step, optionally in combination with a portion of the polyamide, and subsequently melt blending with the remainder of the polyamide and conductive carbon black having a low volatiles content. A mixture of polyamides, illustrated by mixtures of polyamide-6 and polyamide-66, is employed.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: January 9, 2001
    Assignee: General Electric Company
    Inventors: Norberto Silvi, William R. Haaf, Mark Giammattei, Robert Hossan, Thomas J. Stanley, William D. Richards
  • Patent number: 6139776
    Abstract: Flaked additive composition for producing stock mixtures of polymers, containing magnesia, MgO, or hydrotalcite, calcium stearate, and N,N-bis(hydroxyethyl)-N-stearylamine, or equivalent compounds.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: October 31, 2000
    Assignee: CECA S.A.
    Inventors: Charles Carriere Montjosieu, Eric Bouchet, Daniel Vasseur
  • Patent number: 6051679
    Abstract: The invention relates to thiophenes bearing (.omega.-sulfonate)alkoxy or (.omega.-sulfonic acid)alkoxy groups and water-soluble polythiophenes bearing (.omega.-sulfonic acid)-alkoxy side-chains prepared therefrom. The invention also relates to methods for the preparation of these compounds and to antistatic coatings and EMI shieldings comprising the polythiophenes.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: April 18, 2000
    Assignee: Universitede Montreal
    Inventors: Mario Leclerc, Martine Chayer, Karim Faid
  • Patent number: 5989459
    Abstract: Described is a compliant and crosslinkable thermal interface material of at least one malenized rubber with maleic anhydride adducted to the molecule and at least one hydroxyl terminated olefin rubbers, and a method of making and using same; as well as a method of improving thermal conductivity of polymer systems.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: November 23, 1999
    Assignee: Johnson Matthey, Inc.
    Inventors: My N. Nguyen, James D. Grundy
  • Patent number: 5962632
    Abstract: Deaggregated substituted and unsubstitued polyparaphenylenes, polyparaphenylevevinyles, polyanilines, polyazines, polythiophenes, poly-p-phenylene sulfides, polyfuranes, polypyrroles, polysclenopliene, polyacetylenes formed from soluble precursors and combinations thereof and copolymers thereof and methods of fabrication are described. The deaggregated polymer molecules when subsequently doped show higher electrical conductivity. Agents such as lithium chloride, m-cresol and nonylphenol are used to deaggregate the polymer molecules. The deaggregating agents can be added prior to or during doping the molecules.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: October 5, 1999
    Assignee: International Business Machines Corporation
    Inventors: Marie Angelopoulos, Bruce K. Furman
  • Patent number: 5955517
    Abstract: The invention relates to a composition comprising a thermoplastic, structurally crosslinked elastomeric or thermosetting polymer, which comprises(a) a polar, adsorptive inorganic or organic material in the form of fibres or particles which are in mutual contact, onto which is adsorptively bound(b) a polar antistatic agent comprising a mixture ofb1) at least one polar organic compound having at least 5 carbon atoms and at least 3 heteroatoms, andb2) the salt of an inorganic protic acid, which is solvated or complexed in the polar organic compound. The invention also relates to a second composition comprising b) a polar inorganic or organic material, b1) a polar organic compound having at least 5 carbon atoms and at least 3 heteroatoms and b2) an inorganic salt, to the use of this second composition for the antistatic treatment of polymers, and to a process for preparing antistatically treated polymers.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: September 21, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Bruno Hilti, Markus Burkle, Jurgen Pfeiffer, Ernst Minder, Markus Grob
  • Patent number: 5885706
    Abstract: Transparent electroconductive coating compositions, methods to prepare such coating compositions, and substrates coated with these coating compositions. The coatings are based on polymeric resins containing finely dispersed electroconductive powders. The coatings can be characterized by the following: thermoformable while retaining transparency and electrical conductivity that is insensitive to humidity; low chloride extractability, stable to exposure to isopropanol or water/soap solutions.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: March 23, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Oswald Robert Bergmann, Carol Annona Brevett, Carl Brent Douglas, Peter Chungwai Szeto
  • Patent number: 5883169
    Abstract: Disclosed is a lens wafer suitable for use in preparing a laminated lens which wafer has a coating on at least one surface thereof in the form of a peelable protective film.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: March 16, 1999
    Assignee: Sola International Holdings Ltd.
    Inventors: David P. Spector, A. N. Sunder Ram
  • Patent number: 5876636
    Abstract: A composition having a) a haloelastomer with halogenated monomers, polyorganosiloxane monomers, or both halogenated and polyorganosiloxane monomers, and b) a doped metal oxide, preferably antimony doped tin oxide, dispersed or contained therein, wherein the composition can be formed into films or outer layers of components useful in xerographic processes.
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: March 2, 1999
    Assignee: Xerox Corporation
    Inventors: Edward L. Schlueter, Jr., Joseph Mammino, Gerald M. Fletcher, Donald S. Sypula, James F. Smith, Lucille M. Sharf, Robert M. Ferguson
  • Patent number: 5871670
    Abstract: A composition comprising a matrix of a thermoplastic, thermosetting or a structurally crosslinked polymer, in which is incorporated an electroconductive network of crystal needles of a charge transfer complex (abbreviated to CT complex) from an electron donor and an electron acceptor, characterized in that:(1) the matrix contains uniformly distributed an excess, with respect to the CT complex formation, either of at least one electron donor or at least one electron acceptor as weakly polymer-soluble finely divided particles,(2) the CT complex is formed either by at least one weakly polymer-soluble electron donor and at least one polymer-soluble electron acceptor or by at least one weakly polymer-soluble electron acceptor and at least one polymer-soluble electron donor, and(3) microcrystalline needles grow from the weakly polymer-soluble particles in the polymer mass, which microcrystalline needles are in contact with and connect the weakly polymer-soluble particles to form a network which penetrates the polym
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: February 16, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Bruno Hilti, Ernst Minder, Jurgen Pfeiffer
  • Patent number: 5841350
    Abstract: A resonant tag circuit useful as an electronic security device includes a layered planar structure having a dielectric substrate, a resonant circuit carried on both sides of the dielectric substrate and a semiconductive material having an ionizable salt dissolved therein. The semiconductor material provides a sermiconductive bridge across an activation or deactivation point in the circuit and connects the conductive circuit on both sides of the activation or deactivation point. The resonant tag circuit of this invention is stabilized against premature operation of the activation or deactivation point from electrostatic discharge.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: November 24, 1998
    Assignee: Checkpoint Systems, Inc.
    Inventors: Lawrence Appalucci, John H. Bowers, Gary T. Mazoki, Thomas J. McKeown, Anthony F. Piccoli, Mark J. Rankin, Stanley Tocker
  • Patent number: 5814688
    Abstract: The invention relates to a composition comprising a thermoplastic, structurally crosslinked elastomeric or thermosetting polymer, which comprises(a) a polar, adsorptive inorganic or organic material in the form of fibers or particles which are in mutual contact, onto which is adsorptively bound(b) a polar antistatic agent comprising a mixture ofb1) at least one polar organic compound having at least 5 carbon atoms and at least 3 heteroatoms, andb2) the salt of an inorganic protic acid, which is solvated or complexed in the polar organic compound. The invention also relates to a second composition comprising b1) a polar inorganic or organic material, b) a polar organic compound having at least 5 carbon atoms and at least 3 heteroatoms and b2) an inorganic salt, to the use of this second composition for the antistatic treatment of polymers, and to a process for preparing antistatically treated polymers.
    Type: Grant
    Filed: February 4, 1997
    Date of Patent: September 29, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Bruno Hilti, Markus Burkle, Jurgen Pfeiffer, Ernst Minder, Markus Grob
  • Patent number: 5798060
    Abstract: A static dissipative polymeric composition comprising a polymer matrix having a substantially uniform distribution therein of at least two fillers, wherein at least one filler comprises electroconductive particles and at least one filler comprises non-electroconductive particles is disclosed.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: August 25, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Carol Annona Simmons Brevett
  • Patent number: 5702809
    Abstract: The aqueous composition for antistatic layer according to the invention comprises vanadium pentoxide and a polyurethane which includes no sulfonated groups and which is stable in an acidic medium, the weight ratio of vanadium pentoxide to polyurethane preferably being between 1:200 and 5:1. Polymeric supports coated with such a composition can be used for transparencies for photocopy, for mounting supports in the field of printing, or in photographic or magnetic products and in packaging.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: December 30, 1997
    Assignee: Eastman Kodak Company
    Inventors: Jean-Pierre Tixier, Annie Francoise Armande Legrand
  • Patent number: 5681885
    Abstract: In order to provide a coating material for formation of an antistatic/high refractive index film possessing superior antistatic effects, as well as an antistatic/anti-reflection film covered transparent material laminated body provided with superior antistatic effects and anti-reflection effects obtained by this coating material, and a cathode ray tube possessing this laminated body which is provided with antistatic effects, electromagnetic wave shielding effects, anti-reflection effects, and the effect of increase in contrast, the following are provided: a coating material comprising a dispersion fluid containing a mixture of an antimony doped tin oxide fine powder and a black colored electrically conductive fine powder; an antistatic/anti-reflection film covered transparent material laminated body containing a film layer of the coating material on the surface of a transparent substrate, and a specific low refractive index film layer; and a cathode ray tube possessing on its surface a first layer film contai
    Type: Grant
    Filed: July 18, 1996
    Date of Patent: October 28, 1997
    Assignee: Sumitomo Cement Co., Ltd.
    Inventors: Touru Kinoshita, Kenji Takahashi, Tsuneo Yanagisawa, Masaru Uehara, Hitoshi Kimata
  • Patent number: 5677357
    Abstract: An antistatic additive including a hexahalogenated ionic compound, and an antistatic additive composition for organic polymer compositions including an antistatically-effective amount of the hexahalogenated ionic compound, a solvent for the hexahalogenated ionic compound, and a diluent compatible with the hexahalogenated ionic compound, the solvent and the organic polymer composition. The hexahalogenated phosphate compound is preferably either potassium hexafluorophosphate, sodium hexafluorophosphate, and ammonium hexafluorophosphate. Organic polymer compositions containing the additive also are disclosed, as are methods of manufacturing both the additive and the polymer compositions.
    Type: Grant
    Filed: July 5, 1995
    Date of Patent: October 14, 1997
    Assignees: Cellular Technology International, Inc., Chemfoam International, Inc.
    Inventor: Dennis R. Spicher
  • Patent number: 5637368
    Abstract: An antistatic adhesive article which comprises an adhesive layer and utilizes vanadium oxide to impart antistatic properties to the article. The article is preferably an adhesive tape or sheet. The adhesive may be pressure sensitive or non-pressure sensitive. The vanadium oxide may be incorporated into or onto the tape from an aqueous dispersion.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: June 10, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: David A. Cadalbert, Eric D. Morrison, Tamara L. Johnson, William L. Kausch, David R. Boston, Wayne K. Larson, Steven T. Hedrick
  • Patent number: 5631311
    Abstract: Transparent electroconductive coating compositions, methods to prepare such coating compositions, and substrates coated with these coating compositions. The coatings are based on polymeric resins containing finely dispersed electroconductive powders. The coatings can be characterized by the following: thermoformable while retaining transparency and electrical conductivity that is insensitive to humidity; low chloride extractability, stable to exposure to isopropanol or water/soap solutions.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: May 20, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Oswald R. Bergmann, Carol A. Brevett, Carl B. Douglas, Peter C. Szeto
  • Patent number: 5576383
    Abstract: A method for production of antistatic polymer materials which includes an introduction of antistatic agent in the form of a solution of the antistatic agent in an organic solvent, compatible during processing thereof is described. The antistatic agent is at least one compound from the group consisting of organic and inorganic salts, complex compounds and bases. The composition is processed at temperatures not exceeding the least of the boiling and decomposition temperatures of antistatic and solvent. An organic acid is additionally introduced into the composition. The organic solvents are glycols, esters and their derivatives.
    Type: Grant
    Filed: February 6, 1995
    Date of Patent: November 19, 1996
    Inventor: Vitaly I. Kryshtob
  • Patent number: 5574104
    Abstract: The present invention relates to electrostatic dissipative polymeric compositions comprising a polyether polyurethane which can be blended with one or more base polymers. In some applications, the polyurethane is useful without further blending. Further, the polyurethane blends can be blended with glass beads or glass fibers which have a synergist effect when combined with the electrostatic dissipative agent.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: November 12, 1996
    Assignee: The B. F. Goodrich Company
    Inventors: Edmond G. Kolycheck, Elaine A. Mertzel, Francis R. Sullivan, Gary F. Wilson, Timothy E. Fahey
  • Patent number: 5571859
    Abstract: A resin composition comprising 100 parts by weight of a thermoplastic resin and 1 to 50 parts by weight of an antistatic composition consisting essentially of 100 parts by weight of carbon fibers having a length of 0.01 to 100 mm and 5 to 70 parts by weight of carbon fibers having a length of 1/2 to 1/100 of the first carbon fibers is molded to obtain a molded article having an even antistatic effect over the surface in which molded article the antistatic agent (carbon fibers) does not bleed to the exterior and the antistatic effect is maintained for a long time.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: November 5, 1996
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Hidenori Yukishige, Yuji Koshima, Hajime Tanisho, Teiji Kohara
  • Patent number: 5556916
    Abstract: A resin composition is provided which comprises a mixture of A) 100 parts by weight of an ABS graft copolymer comprising as component monomers an acrylonitrile compound and a vinyl aromatic compound in a weight ratio of 10:90 to 50:50, and B) 5 to 30 parts by weight of an ethylene oxide copolymer comprising ethylene oxide as a first monomer and a second monomer and containing at least 50 wt. % of ethylene oxide, the ethylene oxide copolymer having a refractive index (n.sub.D.sup.20) of at least 1.50, wherein said second monomer has a refractive index of at least 1.54 and is 2-phenylphenyl glycidyl ether or 1-naphthyl glycidyl ether, and wherein the molecular weight of the ethylene oxide copolymer is 1 to 5 in terms of a reduced viscosity as measured at 80.degree. C. using 0.1 g/dl monochlorobenzene solution thereof.
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: September 17, 1996
    Assignee: Daiso Co. Ltd.
    Inventors: Yasuo Matoba, Yasumi Shimizu, Katsuhito Miura, Sojiro Kitano, Takahiro Sakashita, Hidekazu Tanaka
  • Patent number: 5508343
    Abstract: An antistatic composition comprising an admixture of a water soluble polymer of a quaternary ammonium salt and a an amino or sulfonyl titanate or zirconate composition. The titanate or zirconate composition is present in the admixture in an amount sufficient to reduce the moisture sensitivity of the quaternary ammonium salt polymer while retaining its antistatic properties. The antistatic properties of the composition are greater than the additive antistatic properties of the polymer and the titanate or zirconate composition. An associated method and coated antistatic surface are also disclosed.
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: April 16, 1996
    Assignee: Rexam Industries Corporation
    Inventor: Leonard Holley
  • Patent number: 5508099
    Abstract: Antistatic agents and their use in processing textiles or formed plastic substrates. The antistatic agent comprises a compound having a fluorocarbon moiety and an ethoxylated quaternary ammonium moiety. The antistatic composition increases the electrolytic conductivity of treated textile or plastic materials, thereby increasing the rate of electrostatic charge dissipation thereof. The antistatic agents remain effective after exposure of the treated substrate to an aqueous environment.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 16, 1996
    Assignee: Henkel Corporation
    Inventor: Michael J. Incorvia
  • Patent number: 5478486
    Abstract: Antistatic agents and their use in processing textiles or formed plastic substrates. The antistatic agent comprises a compound having a fluorocarbon moiety and an ethoxylated quaternary ammonium moiety. The antistatic composition increases the electrolytic conductivity of treated textile or plastic materials, thereby increasing the rate of electrostatic charge dissipation thereof. The antistatic agents remain effective after exposure of the treated substrate to an aqueous environment.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: December 26, 1995
    Assignee: Henkel Corporation
    Inventor: Michael J. Incorvia
  • Patent number: 5468498
    Abstract: Aqueous-based mixtures comprising colloidal vanadium oxide and a dispersed sulfonated polymer impart antistatic properties to coatings on a substrate and to self-supporting articles. The preferred colloidal vanadium oxide is alkoxide derived and provides mixed valence vanadium oxide wherein the vanadium ions are typically +4 and +5. Preferred sulfopolymers include sulfopolyesters, sulfopolyurethanes, sulfopolyurethanes/ureas, sulfopolyester polyols, and sulfopolyols. Antistatic composite structures comprising colloidal vanadium oxide and a sulfopolymer are also disclosed.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: November 21, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Eric D. Morrison, David R. Boston, Steven T. Hedrick, William L. Kausch, Wayne K. Larson, Simon S. Fung
  • Patent number: 5427835
    Abstract: Aqueous-based mixtures comprising colloidal vanadium oxide and a dispersed sulfonated polymer impart antistatic properties to coatings on a substrate and to self-supporting articles. The preferred colloidal vanadium oxide is alkoxide derived and provides mixed valence vanadium oxide wherein the vanadium ions are typically +4 and +5. Preferred sulfopolymers include sulfopolyesters, sulfopolyurethanes, sulfopolyurethanes/ureas, sulfopolyester polyols, and sulfopolyols. Antistatic composite structures comprising colloidal vanadium oxide and a sulfopolymer are also disclosed.
    Type: Grant
    Filed: June 4, 1992
    Date of Patent: June 27, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Eric D. Morrison, David R. Boston, Steven T. Hedrick, William L. Kausch, Wayne K. Larson, Simon S. Fung
  • Patent number: 5358665
    Abstract: Diethanolamine and monocarboxylic acid ester represented by the formula:RC(O)OR'are reacted to produce a reaction mixture comprising diethanol amide of monocarboxylic acid represented by the formula:RC(O)N(CH.sub.2 CH.sub.2 OH).sub.2and hydroxy-functional amide ester represented by the formula: ##STR1## wherein each R is independently a hydrophobic hydrocarbon group and R' is an alkyl group containing from 1 to about 18 carbon atoms. The reaction mixture is useful as an antistatic composition for formulating with polymers, especially polyolefins.
    Type: Grant
    Filed: August 21, 1991
    Date of Patent: October 25, 1994
    Assignee: PPG Industries, Inc.
    Inventors: Kenneth J. Sienkowski, Paritosh M. Chakrabarti
  • Patent number: 5348995
    Abstract: A novel amine-free antistatic agent comprising the reaction product of diethanolamine and a fatty acid or fatty acid ester, neutralized with a strong acid is disclosed, along with plastic composition treated with said antistatic composition, as well as a method for making the antistatic composition and methods for using it to produce plastic articles with antistatic properties.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: September 20, 1994
    Assignee: PPG Industries, Inc.
    Inventor: Barbara J. Anderson
  • Patent number: 5346959
    Abstract: An antistatic agent for thermoplastic polymers is provided wherein the antistatic agent is comprised of a functionalized alkylene oxide polymer and optionally a minor amount of an alkali or alkaline earth metal salt capable of complexing with the functionalized alkylene oxide polymer and wherein the thermoplastic polymers include styrenic polymers such as ABS; blends of an ABS copolymer and a styrene-maleic anhydride copolymer; or nylon 6.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: September 13, 1994
    Assignee: Monsanto Company
    Inventors: Goman (Gomez) Peter M., Kishore Udipi, Lionel R. Stebbins