Patents Examined by Charles Nold
  • Patent number: 5928743
    Abstract: A pressurized vessel filled with a high purity gas, said vessel having a polymeric coating covering its internal surfaces;said high purity gases selected from the group consisting of hydrogen chloride, tungsten hexafluoride, chlorine, hydrogen bromide, nitrogen trifluoride, silanes and boron trichloride;said vessel filled with gas pressure from about 200 psig to about 6,000 psig; and the material for said polymeric coating selected from the group of polyperfluoroalkoxyethylene, copolymer of ethylene and chlorotrifluoroethylene and copolymer of ethylene and tetrafluoroethylene.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: July 27, 1999
    Assignee: PurePak Technology Corporation
    Inventors: Robert J. Bealky, Michael A. Dodd, Thomas J. Moyers, II
  • Patent number: 5925429
    Abstract: There is disclosed a pyrolytic boron nitride container used for a Boat method in which material melt is retained In the container, and a crystal is grown while a temperature gradient is imparted to the material melt. The transmissivity of the pyrolytic boron nitride container with respect to light at a wave number ranging from 3700 cm.sup.-1 to 6500 cm.sup.-1 has a profile such that the transmissivity monotonously changes in the longitudinal direction of the container. The transmissivity profile is produced by imparting a pressure profile during manufacture of the container through deposition of pyrolytic boron nitride, by roughing the outer surface of the container such that the surface roughness has a profile, or by compounding pyrolytic boron nitride with a different material. It becomes possible to facilitate generation of a temperature gradient in material melt within the container and to facilitate control of a temperature profile in the container.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: July 20, 1999
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Noboru Kimura, Takuma Kushihashi, Akira Satoh
  • Patent number: 5925473
    Abstract: A radiation image storage panel having a stimulable phosphor layer and a protective film composed of a plastic material film and a coated layer of a fluororesin-containing resin composition containing light-scattering fine particles gives a radiographic image of improved quality.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: July 20, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Haruyoshi Kuriyama, Hideki Suzuki, Shinichiro Fukui
  • Patent number: 5925428
    Abstract: A vapor barrier coating solution for polymeric articles is provided which contains a selected layered silicate dispersed in a cationic aqueous metal polysilicate, wherein the weight fraction layered silicate of total inorganic solids in the dry coating ranges from above 0 to about 99 percent.Preferably the layered silicate is vermiculite and the polysilicate is lithium polysilicate. Methods for producing and using this coating solution are also included.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: July 20, 1999
    Assignee: Hoechst Trespaphan GmbH
    Inventors: Michael A. Hubbard, James A. McCaulley, Steven F. Nielsen
  • Patent number: 5922461
    Abstract: This invention provides a method for inhibiting adsorption of container-derived contaminants on a powdery or solid drug which comprises establishing a lower alcohol vapor phase within a container made, at least in part, of rubber or a plastic material. The method inhibits adsorption of container-derived substances on a drug to preclude development of insoluble particulate matter owing to said adsorption in an aqueous solution prepared extemporaneously without causing loss of the drug and avoiding the toxic effect of decomposition or degradation of the drug, thus insuring a long-term trouble-free stable shelf-life of the drug.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: July 13, 1999
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Fujio Inoue, Masamitsu Izumi, Satoru Hayashi, Chieko Yoshida
  • Patent number: 5922480
    Abstract: In an organic EL device which includes an organic luminescent layer 18 composed of an organic compound and a hole transporting layer 16 between a cathode 10 and an anode 14, the organic EL device has between the cathode 10 and the organic luminescent layer 18 an electron transporting layer 20 composed of 2-(O-hydroxyphenyl)-benzoxazole or -benzothiazcle zinc complex. The organic EL device of the present invention can emit light of high intensity compared with conventional organic EL devices.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: July 13, 1999
    Assignee: Shinko Electric Industries, Co., Ltd.
    Inventors: Norikazu Nakamura, Keiichi Miyairi
  • Patent number: 5919579
    Abstract: An organic electroluminescent device comprising an anode, an organic hole transport layer, an organic emission layer and a cathode layered in this order on a substrate, or, optionally, comprising an additional electron transport layer between the organic emission layer and the cathode, wherein the organic emission layer comprises a naphthalimide derivative represented by formula (1) wherein R.sup.1 is a hydrogen atom, a straight chain or branched chain alkyl group having from 1 to 16 carbon atoms, an aryl group which may have substituents or an aralkyl group which may have substituents, and R.sup.2, R.sup.3, R.sup.4 are special substituents.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: July 6, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wen-Bing Kang, Nu Yu, Akihiko Tokida, Thomas Potrawa, Andreas Winterfeldt
  • Patent number: 5919326
    Abstract: The fuel hose of this invention is a fuel hose comprising a tubular fluororesin inner ply and, as laminated onto the peripheral surface thereof, a thermoplastic resin or rubber outer ply, the tubular fluororesin inner ply having been molded from a fluororesin with an F/C ratio, i.e. ratio of the number of fluorine atoms (F) to the number of carbon atoms (C), of not greater than 1.6 and the peripheral surface layer of the fluororesin inner ply having been modified into the following treated layer (A).(A) a layer with a distribution of oxygen atoms and having an F/C ratio, i.e. ratio of the number of fluorine atoms (F) to the number of carbon atoms (C), of not greater than 1.12 and an O/C ratio, i.e. ratio of the number of oxygen atoms (O) to the number of carbon atoms (C), of not less than 0.08.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: July 6, 1999
    Assignee: Tokai Rubber Industries, Ltd.
    Inventors: Katsuhiko Yokoe, Kazuhiro Kato, Koyo Murakami, Eiichi Daikai, Hiroaki Ito
  • Patent number: 5919328
    Abstract: The present invention is a plastic container coated with a multi-layer barrier coating. The multi-layer barrier coating is useful for providing an effective barrier against gas permeability in containers and for extending shelf-life of containers, especially plastic evacuated blood collection devices.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: July 6, 1999
    Assignee: Becton Dickinson and Company
    Inventors: Yelena G. Tropsha, Christopher J. Knors, Susan L. Burkett, Bryan Soo Wong
  • Patent number: 5916648
    Abstract: A flexible light pipe consisting of a light-transmitting core, a cladding, and a sheathing is described which, by suitable choice of cladding and sheathing materials, exhibits a combination of good flexibility for bending and shaping whilst retaining good resistance to kinking or other interruptions which can adversely affect transmission of light.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: June 29, 1999
    Assignee: Rohm and Haas Company
    Inventor: Jeffrey Lawrence Daecher
  • Patent number: 5916404
    Abstract: Described herein is a method of preparing a fluoropolymer composite comprising the steps of exposing a formed fluoropolymer substrate to a flame, then activating the fluoropolymer substrate by subjecting the substrate to a charged gaseous atmosphere formed by electrically ionizing a gas which contacts the substrate and thereafter applying a layer of a thermoplastic or thermoset polymer to the activated fluoropolymer substrate. The ionizing step can be described as a mixed gas plasma discharge or an electrically formed plasma. Also described herein are other methods of surface activation including exposure to excimer laser, gamma rays, x-ray flux, electron beam, sodium naphthalate bath, and others. In particular, described is a fuel pipe comprised of an inner fluorocarbon layer having electrostatic discharge resistance and hydrocarbon evaporative emission resistance chemically bonded to an outer layer of a thermoplastic or thermoset polymer. There is no need for additional adhesives.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: June 29, 1999
    Assignee: Pilot Industries, Inc.
    Inventors: Edward K. Krause, Kenneth J. Kuenzel, Jerry J. Smith
  • Patent number: 5916645
    Abstract: The present invention provides a process for the manufacture of a product essentially containing amylose from vegetable materials, in particular from peas. To this end, the flour is mixed with an alkaline decomposing agent, and then a separation into a liquid protein phase and a solid phase containing polysaccharide is performed. The solid phase is then re-suspended and subjected to several sifting steps, followed by at least one washing step and subsequently a drying step. From such polysaccharide material, in particular from amylose, any kind of moisture-resistent, flexible, and in particular biodegradable articles can be produced by means of conventional plastics technologies, in particular the injection molding technique. A particular advantage of the present invention resides in the fact that the thermoplastic polysaccharide material, which is produced from renewable raw materials, can also be processed into sheets which in turn can then be worked with conventional plastics techniques.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: June 29, 1999
    Assignee: K & S Bio-Pack-Entwicklungsgesellschaft fur Verpackungen mbH
    Inventors: Markus Stauderer, Ludwig Kaltenhauser
  • Patent number: 5908678
    Abstract: The invention relates to a monolayer or multilayer long-life packaging containing an anethole-based alcoholic or non-alcoholic drink, characterized in that the layer in contact with the said drink is formed of a methyl acrylate/acrylonitrile/butadiene terpolymer.The invention also relates to a process intended to limit the degradation of an anethole-based alcoholic or non-alcoholic drink, in particular one which is low in alcohol or alcohol-free, characterized in that the said drinks are stored in a monolayer or multilayer long-life packaging whose layer in contact with the said drinks consists of a methyl acrylate/acrylonitrile/butadiene terpolymer.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: June 1, 1999
    Assignee: Pernod Ricard
    Inventors: Patrice Robichon, Philippe Noble
  • Patent number: 5908677
    Abstract: A lightweight plastic container is provided which has stress crack resistance and comprises at least one layer comprising post consumer plastic film resin; a fusion blend of post consumer plastic film resin and post consumer plastic milk resin; or a fusion blend of post consumer plastic film resin, post consumer plastic milk resin and virgin high density ethylene copolymer plastic material. The container may be a single layer container or a multilayer container.
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: June 1, 1999
    Assignee: Owens-Illinois Plastic Products Inc.
    Inventors: James E. Hiltner, James M. Fargher, James N. Herman
  • Patent number: 5904995
    Abstract: A stimulable phosphor is disclosed, comprising a rare earth activated alkaline earth metal fluorohalide stimulable phosphor, wherein the rare earth of the phosphor is a rare earth metal selected from the group consisting of Eu, Ce and Gd and the content of the rare earth metal in the surface portion of the particles of the stimulable phosphor being less that in a central portion of said particles. Disclosed is also a radiation image conversion panel comprising a support having thereon a phosphor layer containing the stimulable phosphor.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: May 18, 1999
    Assignee: Konica Corporation
    Inventors: Akihiro Maezawa, Haruhiko Masutomi, Yasushi Nakano, Hideaki Wakamatsu
  • Patent number: 5902688
    Abstract: This disclosure provides an electroluminescent ("EL") display device having anode, cathode, insulator and organic EL layers. The anode and cathode layers sandwich the other two layers, and the insulator layer is patterned to selectively block flow of current through the EL layers, and thereby locally block generation of light. The patterned insulator layer allows a single panel to display multiple visual attributes, yet does not require electrode patterning. The patterned insulator can be fabricated using photoresist exposure and development procedures. The photoresist is laid on top of a commercially available substrate/electrode layered pair, and is developed to create an assembly that can be completed in a single vacuum deposition process.
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: May 11, 1999
    Assignee: Hewlett-Packard Company
    Inventors: Homer Antoniadis, Steven D. Lester, Jeffrey N. Miller
  • Patent number: 5902689
    Abstract: A description is given of a method of providing an electroluminescent device (20) comprising an active layer (5) of conjugated 2,5-alkyl- or alkoxy-substituted poly(p-phenylene vinylene) with inactive regions (51) and emissive regions (52) by means of patterned irradiation with UV light. Both regions (51) and (52) of the active layer (5) show a clear difference in electroluminescence, electrical resistance and solubility. By means of the above-described effects, displays can be manufactured without making use of structured electrode layers (3) and (11).
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: May 11, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Jeroen J. M. Vleggaar, Adrianus J. M. Berntsen, Aemilianus G. J. Staring, Robert J. C. E. Demandt, Hermanus F. M. Schoo, Coen T. H. F. Liedenbaum
  • Patent number: 5900327
    Abstract: Fluorenes and polyfluorenes having one or two polar-group-containing alkyl substituents on their "9" carbon methylenes are disclosed together with the polymers' use as luminescent materials in organic light-emitting diodes and light-emitting electrochemical cells.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: May 4, 1999
    Assignee: Uniax Corporation
    Inventors: Qibing Pei, Gang Yu, Yang Yang
  • Patent number: 5900294
    Abstract: A polyolefinic multilayer film comprises a base layer containing polypropylene and at least one outer layer. The outer layer comprises a C.sub.3 /C.sub.4 -olefin resin composition with a low degree of crystallinity and has a minimum heat-sealing temperature of below 84.degree. C. A process for the production of the multilayer film and the use thereof are also described.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: May 4, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Ursula Murschall, Herbert Peiffer, Gunter Schloegl, Thomas Dries
  • Patent number: 5897928
    Abstract: Methods and articles for reinforcing castable compositions through the use of reinforcing elements maintained in a close-packed alignment in a dispersible containment means.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: April 27, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James F. Sanders, Larry D. Rich, Clifford N. MacDonald, L. Max Hurlocker