Group V Metal Atom Dnrm (i.e., V, Nb, Ta, As, Bi, Sb) Patents (Class 524/408)
  • 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: 5879244
    Abstract: A golf ball made by adding bismuth, bismuth alloy or a mixture of bismuth alloy in bismuth to the resin compositions in amounts of 0.5-60 parts by weight per 100 parts by weight of the base resin of the said golf ball, which the carry extends farther than the other common golf balls without raising a hardness. It is because, as molding the said golf ball with the resin compositions which is added bismuth or bismuth alloy, cooling the moldings at a normal temperature after molding, bismuth or bismuth alloy gets solidified and expanded its volume by 3-3.5% and the organic polymeric materials grow dense as much as bismuth expands, that hold a lot of energy. Additionally, since this can be applied to all the core and the cover or selectively to each part, it is possible to make the golf balls with various properties that may give a satisfaction to all sorts of golfers. Furthermore, the golf balls according to the present invention is soft to the touch, which has a good hit feeling.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: March 9, 1999
    Assignee: Ilya Co. Ltd.
    Inventor: In Hong Hwang
  • Patent number: 5874374
    Abstract: A method for producing engineered materials from salt/polymer aqueous solutions in which an aqueous continuous phase having at least one metal cation salt is mixed with a hydrophilic organic polymeric disperse phase so as to form a metal cation/polymer gel. The metal cation/polymer gel is then treated to form a structural mass precursor, which structural mass precursor is heated, resulting in formation of a structural mass having predetermined characteristics based upon the intended application of the structural mass.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: February 23, 1999
    Assignee: Institute of Gas Technology
    Inventor: Estela Ong
  • Patent number: 5874491
    Abstract: The present invention relates to novel compositions useful, for example, in marking road surfaces. The compositions contain a moisture sensitive luminescent substance (for example a phosphorescent substance having increased brightness and longer lasting afterglow) and an epoxy resin or a polyurethane resin which is water miscible or soluble, and which impart moisture stability to the luminescent substance. The luminescent substance-resin mixtures may be mixed with water-based highway paints. As a result, these novel compositions impart an extended road surface life, and are environmentally friendly because they do not contaminate the surrounding environment with organic hydrocarbon products via vaporization or runoffs. In addition these compositions may be used both indoors and outdoors for nighttime marking and in other marking applications.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: February 23, 1999
    Inventor: Irving Anders
  • Patent number: 5863454
    Abstract: An electroconductive polymer composite for use in secondary batteries as positive electrode active materials is disclosed. It includes 10-99 weight percent of a conjugated electroconductive polymer, such as polyaniline, and 90-1 weight percent of polymeric electrolyte. The latter is composed of 10-90 weight percent of an ionic salt, such as LiClO.sub.4, and 90-10 weight percent of a polymer which can form an electrolyte material with the ionic salt. The polymer, for example, can be polyvinyl alcohol or polyalkylene oxide. A method of using the electroconductive polymer composite to prepare the positive electrode of secondary batteries is also disclosed.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: January 26, 1999
    Assignee: National Science Council
    Inventors: Show-An Chen, Liang-Chang Lin
  • Patent number: 5856395
    Abstract: The present invention relates to a resin composition having a high dielectric constant and a low dielectric loss tangent under high frequency conditions and articles obtained therefrom. The resin composition comprises 100 parts by weight of thermoplastic resin and 50-900 parts by weight of ferroelectric material. The formed articles can be used as substrates for a miniaturized antenna or circuit.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: January 5, 1999
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Hajime Tanisho, Yuji Koshima, Teiji Kohara
  • Patent number: 5851508
    Abstract: Disclosed are compositions suitable for use in embolizing blood vessels which compositions comprise an ethylene vinyl alcohol copolymer, a biocompatible solvent and a water insoluble contrasting agent selected from the group consisting of tantalum, tantalum oxide and barium sulfate. Also disclosed are methods for embolizing a blood vessel using the compositions described herein.
    Type: Grant
    Filed: February 14, 1997
    Date of Patent: December 22, 1998
    Assignee: MicroTherapeutics, Inc.
    Inventors: Richard J. Greff, Michael L. Jones, Scott Evans
  • Patent number: 5760115
    Abstract: A novel fire-retardant polymer composition is provided which comprises 100 parts by weight of a polymer such as polyolefins and polystyrenes, 1-30 parts by weight of an oxide or a complex oxide of metals such as antimony, boron, and molybdenum, and 1-30 parts by weight of heat-expandable graphite. The fire-retardant polymer composition emits less amounts of smoke and corrosive gas on burning with the characteristics of the polymer material kept unimpaired.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: June 2, 1998
    Assignee: Tosoh Corporation
    Inventors: Fumio Okisaki, Akinori Hamada, Shunichi Endo, Genichiro Ochiai
  • Patent number: 5744520
    Abstract: A process for the preparation of polymer compositions which comprises mixing a conductive component with an anionic polymeric latex containing a polymer; adding a cationic surfactant, or flocculant whereby the aggregation of the latex particles and the conductive component particles results; subsequently adding colloidal stabilizer, followed by the addition of a base to obtain a pH of from about 7 to about 12; heating above about the polymer glass transition temperature thereby enabling the severage, or breakage of the formed aggregated particles; further heating above about the polymer glass transition temperature enabling the coalescence of the polymer and conductive component particles; and optionally washing and drying the resulting coalesced product.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: April 28, 1998
    Assignee: Xerox Corporation
    Inventors: Grazyna E. Kmiecik-Lawrynowicz, Richard P. N. Veregin, Raj D. Patel, Michael A. Hopper, Maria V. McDougall
  • Patent number: 5723535
    Abstract: The present invention relates to pastes for the coating of substrates, consisting of powdery materials present in liquid dispersion from the group of the metals, metal compounds and/or metal alloys and/or boron and/or carbon, methods for manufacturing them and their use.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: March 3, 1998
    Assignee: H.C. Starck GmbH & Co., KG
    Inventors: Bruno E. Krismer, Uwe Thies, Peter Ladstatter, Rudolf Hunert
  • Patent number: 5709985
    Abstract: A photographic element comprising a polymeric film base, a silver halide emulsion layer, and an antistatic layer comprising a colloidal vanadium oxide and a vinyl addition polymer dispersion in a dry weight ratio of from 1:30 to 1:500. The antistatic layer may be present as a backing layer on the side of the base opposite the silver halide emulsion layer, as a subbing layer between the base and the emulsion layer in a single or double side coated photographic element, and/or as a subbing layer between the base and a different backing layer. No barrier layer is used over the antistatic layer.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: January 20, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Eric D. Morrison, Paola Puppo, Alberto Valsecchi, Elio Martino, William L. Kausch, Renzo Torterolo
  • 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: 5698483
    Abstract: A process for producing nano size powders comprising the steps of mixing an aqueous continuous phase comprising at least one metal cation salt with a hydrophilic organic polymeric disperse phase, forming a metal cation salt/polymer gel, and heat treating the gel at a temperature sufficient to drive off water and organics within the gel, leaving as a residue a nanometer particle-size powder.
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: December 16, 1997
    Assignee: Institute of Gas Technology
    Inventors: Estela T. Ong, Vahid Sendijarevic
  • Patent number: 5696193
    Abstract: A dry immunoassay analytical element, for assaying a ligand, comprising in the following order:(a) a layer containing a labeled ligand;(b) a spreading layer;(c) a receptor layer containing a fixed concentration of an immobilized receptor for the labeled ligand and the receptor is i) covalently bonded to polymeric beads having a diameter in the range of 0.1 to 5 .mu.m and ii) dispersed in a polymeric binder and(d) a support;characterized in that the spreading layer contains a water soluble polymer containing vanadium IV (V.sup.+4) ions.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: December 9, 1997
    Assignee: Clinical Diagnostic Systems, Inc.
    Inventors: Daniel Salman Daniel, David Alan Hilborn, Calvin Roman Messing, Ignazio Salvatore Ponticello, Susan Jean Danielson
  • 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: 5667767
    Abstract: Disclosed are compositions suitable for use in embolizing blood vessels which compositions comprise an ethylene vinyl alcohol copolymer, a biocompatible solvent and a water insoluble contrasting agent selected from the group consisting of tantalum, tantalum oxide and barium sulfate. Also disclosed are methods for embolizing a blood vessel using the compositions described herein.
    Type: Grant
    Filed: July 27, 1995
    Date of Patent: September 16, 1997
    Assignee: Micro Therapeutics, Inc.
    Inventors: Richard J. Greff, Michael L. Jones, Scott Evans
  • Patent number: 5658976
    Abstract: The present invention is a composition comprising an optically variable pigment modified with metal salt selected from the group consisting of salts of transition metals having atomic numbers 21-28; 39-42, 57 and 72-74; and salts of the lanthanide series of rare earth metals having atomic numbers of from 58 to 71. The invention also includes a method for forming the surface treated pigments and coating compositions containing the pigments.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: August 19, 1997
    Assignee: BASF Corporation
    Inventors: Clint W. Carpenter, S. Kendall Scott
  • Patent number: 5648407
    Abstract: Compositions comprise (a) a curable resin sol comprising a colloidal dispersion of substantially spherical, substantially inorganic microparticles (e.g., surface-modified silica) in curable resin (e.g., epoxy resin); and (b) reinforcing fibers (e.g., carbon fibers). The compositions can be cured to provide fiber-reinforced composites which exhibit improved resin-dominated mechanical properties.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: July 15, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Douglas P. Goetz, Andrew M. Hine, William J. Schultz, Wendy L. Thompson
  • Patent number: 5646197
    Abstract: The present invention is directed to a root canal sealer which satisfies the need for obtaining a tight seal. The root canal sealer comprises the following powders in the following weight ratios: 31 to 41% zinc oxide, 25% hydrogenated rosin glycerol ester (staybelite resin), 10% bismuth subcarbonate, 10% barium sulfate, 1% anhydrous sodium borate, and 5-15% triiodomethane. The powders are mixed with 100% eugenol to form a creamy paste.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: July 8, 1997
    Inventor: Howard Martin
  • 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: 5624976
    Abstract: A root canal sealing dental filling composition, includes liquid polymerizable organic monomers and filler. The polymerizable organic monomers include an diepoxide monomer and a primary monoamine and/or a disecondary amine monomer. The filler includes 40 to 85 percent by weight of the composition and provides a radiopacity of at least 3 mm/mm Al. A method of sealing a tooth canal, includes providing a canal in a tooth sealing the canal with this root canal sealing dental filling composition.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: April 29, 1997
    Assignee: Dentsply GmbH
    Inventor: Joachim E. Klee
  • Patent number: 5614568
    Abstract: An antibacterial resin composition comprising (A) 100 parts by weight of a styrene resin, (B) 0.01 to 30 parts by weight of an antibacterial agent and (C) 0.01 to 30 parts by weight of a compound having a specific functional group, and said antibacterial resin composition is excellent in antibacterial property and surface appearance of molded article and can give a molded article which can be applied to many fields.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: March 25, 1997
    Assignee: Japan Synthetic Rubber Co., Ltd.
    Inventors: Masaaki Mawatari, Chie Hamazaki, Tateki Furuyama
  • Patent number: 5608031
    Abstract: This invention relates to a polyester resin prepared by adding one or more dicarboxylic acid components to one or more glycol components containing 1,4-cyclohexanedimethanol equalling 100 mole %,the polyester resin having been prepared in the presence of a catalyst/stabilizer system consisting essentially of antimony compounds and phosphorous compounds and compounds selected from the group consisting essentially of zinc compounds, gallium compounds, and silicon compounds.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: March 4, 1997
    Assignee: Eastman Chemical Company
    Inventors: Cheuk C. Yau, Leslie S. Moody
  • Patent number: 5607996
    Abstract: This invention is directed to an ER elastomer composition comprising natural rubber and polarizable particles dispersed therein, which elastomer can undergo changes in Youngs modulus when subjected to an electric field and having a Youngs modulus of at least about 2 Mpa when not subject to an electric field, wherein the ratio of the electrical conductivity of the particles to the electrical conductivity of the natural rubber is between about 10.sup.4 and 10.sup.10. The invention also include variable stiffness mounts, such as engine mounts, made from the composition.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: March 4, 1997
    Assignee: Ford Motor Company
    Inventors: Mark E. Nichols, John M. Ginder, Larry D. Elie, Robert A. Pett
  • Patent number: 5593764
    Abstract: A thermoplastic composition comprising an uncrosslinked blend of (A) from 1 to 80 weight percent of at least one partially crystalline polymer or copolymer of ethylene, having a density lying between 0.870 and 0.945, and (B) from 20 to 99 weight percent of at least one hydrophobic, non-elastomeric, random or graft copolymer.
    Type: Grant
    Filed: March 17, 1993
    Date of Patent: January 14, 1997
    Assignee: Societe Chimique des Charbonnages S.A.
    Inventors: Lionel Guerdoux, Marius Hert
  • Patent number: 5576163
    Abstract: Imaging elements, such as photographic, electrostatographic and thermal imaging elements are comprised of a support, an image-forming layer and an electrically-conductive layer comprised of a vanadium pentoxide colloidal gel, a polyesterionomer binder and a methoxyalkylmelamine. The electrically-conductive layer exhibits electrical conductivity which is both process-surviving and essentially independent of humidity.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: November 19, 1996
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Mario D. DeLaura
  • Patent number: 5545715
    Abstract: The present invention provides a flame-retardant resin composition comprising 100 parts by weight of a bromine-containing copolymer composition containing 1 to 40% by weight of bromine, and comprising 0 to 30 parts by weight of a flame-retarding adjuvant and 0.5 to 30 parts by weight of a polyorganosiloxane-reinforced resin component obtained by polymerizing a vinyl monomer (d) in the presence of a polyorganosiloxane polymer. The flame-retardant resin composition of the present invention has attained a remarkably higher flame retardancy by the inclusion of a polyorganosiloxane-reinforced resin. A significant improvement in the dripping phenomenon has also been achieved. Further, this composition exhibits superior impact resistance and moldability, and a superior outer appearance in the formed products.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: August 13, 1996
    Assignee: Japan Synthetic Rubber Co. Ltd.
    Inventors: Hiroyuki Itoh, Masanori Suzuki, Akira Kamiya, Takeki Furuyama
  • Patent number: 5541248
    Abstract: A coating composition comprising hydrogen silsesquioxane resin and a phosphor filler diluted in a solvent. These compositions are used to form luminescent coatings on substrates.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: July 30, 1996
    Assignee: Dow Corning Corporation
    Inventors: Loren A. Haluska, Keith W. Michael, Udo C. Pernisz
  • Patent number: 5534581
    Abstract: A transfer material carrying member has a copolymer and conductive particles; the copolymer has a component unit represented by the Formula (I) and a component unit represented by the Formula (II), and the component unit represented by Formula (II) is in an amount of from 0.1% by weight to 50% by weight based on the total weight of the copolymer.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: July 9, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Noriko Ohtani, Naoto Fujimura, Kiyoshi Sakai, Teigo Sakakibara, Masahiro Inoue, Nobuhiko Takekoshi, Shinya Mayama, Hideo Ohtaki, Tadami Kinugawa, Toshiaki Takada, Yuichi Hashimoto
  • Patent number: 5527848
    Abstract: The present invention is a composition comprising an optically variable pigment modified with metal salt selected from the group consisting of salts of transition metals having atomic numbers 21-28; 39-42; 57 and 72-74; and salts of the lanthanide series of rare earth metals having atomic numbers of from 58 to 71. The invention also includes a method for forming the surface treated pigments and coating compositions containing the pigments.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: June 18, 1996
    Assignee: BASF Corporation
    Inventors: Clint W. Carpenter, S. Kendall Scott
  • Patent number: 5473007
    Abstract: The composition of the present invention is a kind of crosslinked, flame-retardant resin composition, which comprises a base polymer of EVA-VC, chlorinated polyethylene, thermal stabilizers, antioxidants, flame-retardant fillers, lubricants and monomers with multifunctional group.The composition essentially comprises 100 weight parts of EVA-VC, 10 to 70 weight parts of chlorinated polyethylene, 40 to 120 weight parts of flame-retardant fillers, and 5 to 20 weight parts of monomer with multifunctional group.In addition, the composition is crosslinked by electron beam to be used as the material for sheath layer of electric wire or cable durable to high voltages.
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: December 5, 1995
    Assignee: Goldstar Cable Co., Ltd.
    Inventors: In K. Kwon, Sang M. Kim
  • 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: 5409980
    Abstract: The present invention comprises flame retardant composition including a finely dispersed inorganic ultra fine particulate flame or smoke retardant material where the particles are no larger than 500 nanometers (0.50 .mu.) in size. Preferably, the particles used are below 50 (0.050 .mu.) nanometers in size and comprise antimony pentoxide (Sb.sub.2 O.sub.5), the synthetic resin preferably is a polyolefin, preferably polypropylene, and the composition includes a halogenated retardant compound, preferably a brominated alkoxydiphenyl sulfone.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: April 25, 1995
    Assignee: PQ Corporation
    Inventor: Edward A. Myszak, Jr.
  • Patent number: 5407987
    Abstract: Polycyclic aromatic group-pendant polysilanes of the following general formula are described.[(R.sup.1 R.sup.2 Si).sub.k (R.sup.3 R.sup.4 Si).sub.m ].sub.nwherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are, respectively, a hydrogen atom or a monovalent hydrocarbon group provided that at least one of R.sup.3 and R.sup.4 is a monovalent hydrocarbon group having a polycyclic aromatic group or a biphenyl group. When the polysilane is doped with an oxidative dopant, the polymer is rendered electrically conductive and has thus wide utility in various fields of photoconductive and electrically conductive materials without involving degradation of the polysilane.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: April 18, 1995
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Motoo Fukushima, Eiichi Tabei, Shigeru Mori
  • Patent number: 5403882
    Abstract: Thin impermeable, corrosion-resistant, durable, dry lubricant coatings are provided as well as coated products and methods for the production thereof. The coatings comprise solutions of sulfur-containing metallic compounds and fluorocarbon polymers dissolved in mineral oil solvents and are applied to surfaces of substrates such as metallic surfaces.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: April 4, 1995
    Assignee: Eeonyx Corporation
    Inventor: Gary E. Huggins
  • Patent number: 5401793
    Abstract: An intumescent fire-resistant coating and a fire-resistant material using the same are disclosed, the coating essentially including (A) at least one inorganic compound selected from the group consisting of a carbide, boride, nitride, carbonitride, or carboboride of titanium, zirconium, vanadium, niobium, tantalum, molybdenum, tungsten, silicon or chromium and a carbide, nitride or carbonitride of boron, (B) a synthetic resin, and (C) at least one phosphorus and/or sulfur compound capable of forming a Lewis acid on heating.
    Type: Grant
    Filed: March 18, 1992
    Date of Patent: March 28, 1995
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Nobuo Kobayashi, Hikaru Yoshioki, Kenji Yoshida, Katsunobu Sagawa, Shigehisa Ishihara
  • Patent number: 5358987
    Abstract: A new polysilane composition usable as an organic semiconductor which contains a specific polysilane compound of 6000 to 200000 in a weight average molecular weight in which all the substitutional groups and end groups being substituted by specific organic groups not containing oxygen atom, said polysilane compound not containing chlorine atom, and an acceptor level forming material or/and a donor level forming material.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: October 25, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Kanai, Hisami Tanaka, Harumi Sakou, Tatuyuki Aoike, Kouichi Matuda, Keishi Saitou, Mituyuki Niwa, Masahumi Sano
  • Patent number: 5328770
    Abstract: According to the present invention there is provided a polyester composition comprising an aromatic polyester having copolymerized therein a compound containing at least one sulfonic acid group or sulfonic acid metal salt group, and crosslinked polymer particles, preferably crosslinked polymer particles coated with a water-soluble polymer. The particles are incorporated in a slurried state into the polymer. There is also provided a laminate film containing the polymer with the particles thus incorporated therein.The polyester composition is superior in uniform dispersibility of the particles, re-agglomeratin does not occur in melt-storage for a long time, and films formed using the polyester composition are superior in traveling performance and abrasion resistance.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: July 12, 1994
    Assignee: Toray Industries, Inc.
    Inventors: Minoru Yoshida, Masaru Suzuki, Masahiro Kimura, Toshihiro Sasaki
  • Patent number: 5326797
    Abstract: A roofing system incorporates a fire resistant asphalt composition comprising a thermoplastic elastomer modified bitumen, a filler, a brominated diphenyl ether, antimony oxide, and zinc borate. The asphalt composition is utilized with and impregnated into at least one layer of fiberglass or polyester mat. Preferably at least two layers are utilized wherein an upper layer is a fiberglass mat and a lower layer is a polyester mat, both mat layers being impregnated with the composition. In its preferred formulation, the asphalt composition comprises, in weight percent, about 30% to 90% bitumen, about 4% to 16% styrene-butadiene-styrene copolymer, about 10% to 40% filler, and up to about 20% each of the brominated diphenyl ether, the antimony oxide, and the zinc borate. The preferred brominated diphenyl ether is decabromodiphenyl ether.
    Type: Grant
    Filed: August 31, 1992
    Date of Patent: July 5, 1994
    Assignee: GS Roofing Products Company, Inc.
    Inventors: Harold Zimmerman, David Ploense, Robert Lilleston, Mario Butera
  • Patent number: 5290354
    Abstract: The present invention relates to a method of forming a ceramic or ceramic-like coating on a substrate, especially electronic devices, as well as the substrate coated thereby. The method comprises coating said substrate with a solution comprising a solvent, hydrogen silsesquioxane resin and a modifying ceramic oxide precursor selected from the group consisting of tantalum oxide precursors, niobium oxide precursors, vanadium oxide precursors, phosphorous oxide precursors and boron oxide precursors. The solvent is then evaporated to thereby deposit a preceramic coating on the substrate. The preceramic coating is then ceramified by heating the to a temperature of between about 40.degree. C. and about 1000.degree. C. This coating, moreover, may be covered by additional passivation and barrier coatings.
    Type: Grant
    Filed: August 7, 1990
    Date of Patent: March 1, 1994
    Assignee: Dow Corning Corporation
    Inventor: Loren A. Haluska
  • Patent number: 5276102
    Abstract: Electrically conductive polythiopheneamine polymer networks are provided comprising conjugated crosslinks between polythiopheneamine polymer segments of the network. The network can be formed by crosslinking amine functional polythiopheneamine polymers, such as by crosslinking condensation reaction with conjugated polyketone crosslinkers. The amine functional polythiopheneamine polymers can be prepared by polymerization, such as by electropolymerization of amine functional thiophene monomers (the amine functionality generally being protected during polymerization) and, optionally, suitable conjugated copolymerization monomers such as thiophene, pyrrole and/or amine functional pyrrole.
    Type: Grant
    Filed: January 7, 1993
    Date of Patent: January 4, 1994
    Assignee: Ford Motor Company
    Inventors: Giuseppe Rossi, Susan M. Ward, Henk van Oene, Joseph W. Holubka
  • Patent number: 5273826
    Abstract: A polyurethane resin is synthesized from a reaction mixture of at least one phosphorus compound, an epoxy compound, a polyisocyanate, a polyfunctional hydroxy compound, and optionally a chain extender. The polyurethane resin contains one phosphoric acid group or one residual group derived from phosphoric acid per 3,000 to about 200,000 number average molecular weight of the polyurethane resin. The weight average molecular weight of the polyurethane resin is from about 10,000 to about 250,000. A magnetic coating formulation is comprised of principally of magnetic particles and a binder. A magnetic recording media comprises a laminate as in the form of a magnetic layer composed principally of magnetic particles and a binder wherein at least a portion of the binder is the polyurethane resin. The substrate of the magnetic recording medium is a suitable polymer such as polyester, and the like.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: December 28, 1993
    Assignee: The B. F. Goodrich Company
    Inventors: Masahiko Yasuda, Shigeo Hosokawa, Yorozu Yokomori, Shinichiro Jimbo, Edmond G. Kolycheck
  • Patent number: 5250585
    Abstract: A dental material in powder form and being based on(a) aluminum fluorosilicate glass,(b) base metals suitable for dental use, or alloys of these with each other, and optionally(c) dry polycarboxylic acid and/or(d) a chelating agent,which contains at least some of constituent (a) as a sintered mixture with constituent (b).
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: October 5, 1993
    Assignee: ESPE Stiftung & Co. Produktions- und Vertriebs KG
    Inventors: Rainer Guggenberger, Klaus Ellrich, Oswald Gasser, John W. McLean, Owen Makinson
  • Patent number: 5248718
    Abstract: Flame-retardant thermoplastic composition including a styrene polymer containing thoroughly incorporated therein an effective quantity of a synergetic mixture composed of a chlorinated hydrocarbon compound containing at least 40% by weight of combined chlorine, an inorganic compound containing oxygen of a metal belonging to group III or IV of the periodic table, and polytetrafluoroethylene having a particle size which is less than 20 microns.
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: September 28, 1993
    Assignee: ECP Enichem Polimeri S.r.l.
    Inventors: Gian C. Fasulo, Francesco Mori, Roberto Nocci, Italo Borghi
  • Patent number: 5238986
    Abstract: The composition of the present invention is composed of finely divided solid refractory material suspended in a nonaqueous liquid slip composition. The nonaqueous liquid slip composition consists essentially of a deflocculent composed of a vinyl chloride and vinyl acetate resin dissolved in an organic solvent. The composition may be slip cast or cold formed into a low density article which is then sintered into a dense product.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: August 24, 1993
    Assignee: Praxair S.T. Technology, Inc.
    Inventor: Lionel C. Montgomery
  • Patent number: 5205971
    Abstract: Non-whiteware ceramic articles having an increased green strength are prepared from slip compositions containing a polyalkylene polyamine as an additive or a mixture of a polyalkylene polyamine and binder as an additive. An example of such an additive is tetraethylenepentamine or a mixture of tetraethylenepentamine and a styrene butadiene latex.
    Type: Grant
    Filed: October 2, 1990
    Date of Patent: April 27, 1993
    Assignee: The Dow Chemical Company
    Inventors: Alan P. Croft, Brian D. Koblinski
  • Patent number: 5126075
    Abstract: Material for a housing of electronic components, a compound of synthetic resin, which contains ferrite powder and carbon fiber, is bestowed with original properties of the synthetic resin, such as lightness and freedom of molding, high permeability brought by ferrite powder, and high conductivity and mechanical properties by a designated carbon fiber. The material is made into a light housing with various shapes by injection molding or vacuum molding. The housing concentrates on its surface magnetic flux from external low-frequency field and shields the electronic components from electromagnetic wave noise and low-frequency magnetic field, preventing electromagnetic troubles of the electronic components.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: June 30, 1992
    Assignee: Kitogawa Industries Co., Ltd.
    Inventor: Asaharu Nakagawa
  • Patent number: 5112529
    Abstract: The present invention relates to a conductive material and a process for producing said conductive material. More particularly, the present invention relates to a conductive material comprising (a) a substrate obtained from a polycarbodiimide resin and (b) a dopant, which is superior in oxidation resistance, mechanical strengths and flexibility, and useful as a material for electronic field, as well as to a process for producing said conductive material.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: May 12, 1992
    Assignee: Nisshinbo Industries, Inc.
    Inventor: Kazuo Saito
  • Patent number: 5104602
    Abstract: Fibers formed of a blend of metal oxide, such as titanium or zirconium oxide, with etheric phosphazene are formed by preparing solutions of etheric phosphazene and inorganic alkoxides, such as titanium isopropoxide. The solutions are then formed into fibers and cured at room temperature or with moderate heating. Fibers produced can be extensible, tough, hard, flexible, or brittle. They are multicomponent blends of the titaninum or zirconium oxide and phosphazene. The composite may be doped with low lattice energy salts to form conductive fibers.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: April 14, 1992
    Assignee: Eastman Kodak Company
    Inventors: Christine J. T. Landry, Wayne T. Ferrar, Bradley K. Coltrain
  • Patent number: 5098609
    Abstract: A paste including a thermally conducting solid filler, a nonaqueous liquid carrier and a stabilizing dispersant. The pastes are highly concentrated, of low viscosity, electrically resistive, highly thermally conducting and stable. The pastes are easily applicable to electrical and electronic devices and may be removed therefrom with common solvents to access components where necessary.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: March 24, 1992
    Assignee: The Research Foundation of State Univ. of N.Y.
    Inventors: Sushumna Iruvanti, Rakesh K. Gupta, Eli Ruckenstein