Patents Examined by Charles Nold
  • Patent number: 5814413
    Abstract: The present multilayer coextruded polymer films, are made up of one or more layers which contain 20 to 100 percent by weight of a first polymer resin selected from the group consisting of a terpolymer of ethylene, butene and hexene produced using a metallocene single site catalyst, a copolymer of ethylene and hexene produced using a metallocene single site catalyst and a copolymer of ethylene and butene produced using a metallocene single site catalyst, ; and 0 to 80 percent of a second polymer resin selected from the group consisting of low density polyethylene, linear low density polyethylene, ultra low density polyethylene, very low density polyethylene, a terpolymer of ethylene, butene and hexene produced using a metallocene single site catalyst which is different from that used as the first polymer resin, a copolymer of ethylene and hexene produced using a metallocene single site catalyst which is different from that used as the first polymer resin, a copolymer of ethylene and butene produced using a met
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 29, 1998
    Assignee: Huntsman United Films Corporation
    Inventor: Fred Beerwart
  • Patent number: 5811047
    Abstract: The invention provides a polyolefin drug packaging material characterized in that the content, in the polyolefin, of substances containing 12 to 26 carbon atoms is not more than 150 ppm. The packaging material of the invention is useful because the risk of its reacting with and adversely affecting the drug packaged therewith is minimum.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: September 22, 1998
    Assignees: Otsuka Pharmaceutical Factory, Inc., Mitsui Petrochemical Industries, Ltd.
    Inventors: Fujio Inoue, Masamitsu Izumi, Shigetoshi Kashiyama, Hiroshi Tanaka
  • Patent number: 5807458
    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: May 15, 1995
    Date of Patent: September 15, 1998
    Assignee: Minnesota Mining & Manufacturing Company
    Inventors: James F. Sanders, Larry D. Rich, Clifford N. MacDonald, L. Max Hurlocker
  • Patent number: 5804016
    Abstract: A multilayer plastic container having enhanced strength for high temperature and pressure applications such as the pasteurization of carbonated juice drinks. The container is commercially cost-effective in comparison to prior art pasteurizable glass containers, and provides all of the advantages of plastic over glass, i.e., lightweight, shatter-resistant, etc. In a particular embodiment, the multilayer container includes inner and outer layers of a relatively high IV virgin PET, e.g., 0.85-0.90 dl/g, and a core layer of post-consumer PET having a substantially lower IV. The container has a relatively tall and slender profile, with high orientation levels in the panel and shoulder, and an oriented thick-walled base with feet. The base preferably has a high profile and angled foot pads which are allowed to move outwardly under creep.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: September 8, 1998
    Assignee: Continental PET Technologies, Inc.
    Inventors: Steven L. Schmidt, Suppayan M. Krishnakumar, Wayne N. Collette
  • Patent number: 5804270
    Abstract: A collapsible tube is obtained by heat bonding a head to a polyolefin sleeve, the head comprising a composition which comprises a polyolefin resin (A), a saponified product of ethylene-vinyl acetate copolymer (B) having a melting point of at least 135.degree. C., and a saponified product ethylene-vinyl acetate. copolymer (C) having a melting point of not more than 130.degree. C.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: September 8, 1998
    Assignee: Kuraray Co., Ltd.
    Inventors: Syukiti Kawamura, Sumio Itamura, Kazuyori Yoshimi
  • Patent number: 5800887
    Abstract: An oxygen-absorbing container capable of forming active sites (polymer radicals) at any moment when it is desired to absorb oxygen remaining in the container and a method of producing packaged food using the container. A package capable of excellently preserving the content maintaining flavor can be easily produced through simple operation using an apparatus which is not so large in scale. The oxygen-absorbing plastic container has at least a portion that is made of a photo-oxidatively degradable resin or a resin composition containing a photo-oxidatively degradable resin and a photo-oxidation promoting agent that absorbs ultraviolet rays and visible light.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: September 1, 1998
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventor: Masayasu Koyama
  • Patent number: 5798158
    Abstract: A layered molding and method for making the same which has excellent antipermeability to gasoline. The layered molding is defined by a fluoroplastic and an epichlorohydrin rubber. The fluoroplastic is a copolymer formed from at least two precursors selected from the group consisting of hexafluoropropylene, tetrafluoroethylene, and vinylidene fluoride, which are selected within a plotted range to preferably form a binary or tertiary composition. The epichlorohydrin rubber contains organic phosphonium. The resulting layered molding does not require an adhesive agent.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: August 25, 1998
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Masaki Koike, Atsushi Suzuki, Daisuke Tsutsumi, Masayoshi Ichikawa
  • Patent number: 5792531
    Abstract: An elastomeric article such as a glove includes a substrate body made of an styrene-ethylene-butylene-styrene block copolymer, and a donning layer overlying at least one side of the substrate body. The donning layer is formed of a chlorinated styrene-isoprene, preferably having a polystyrene block content of from about 10 to about 20 percent by weight of the total copolymer weight and an end block polystyrene molecular weight of at least about 5,000. Optionally, a surfactant-containing layer may be present over the donning layer to further improve the donning characteristics. The article is preferably prepared by dip forming the article from an styrene-ethylene-butylene-styrene block copolymer, coating the article with a solution of the styrene-isoprene block copolymer, removing the solvent, and chlorinating the styrene-isoprene block copolymer.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: August 11, 1998
    Assignee: Tactyl Technologies, Inc.
    Inventors: Kermit R. Littleton, Garth Brown, Sebastian Plamthottam
  • Patent number: 5792567
    Abstract: The triazole derivatives of this invention are expressed by the general formula (1).The organic electroluminescent device of this invention have a layer containing at least one triazole derivative of the general formulas (1) and (2).Such triazole derivatives are excellent in electron-transport efficiency, hole-blocking properties and heat resistance, and such organic electroluminescent devices are excellent in luminous efficiency, luminance and stability. ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9 and R.sup.10 have the same meanings as indicated in the specification.
    Type: Grant
    Filed: February 7, 1996
    Date of Patent: August 11, 1998
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Junji Kido, Takashi Uemura, Hiroya Kimura, Nobuyuki Okuda, Yoshinobu Ueba, Yasuko Okuda, Hajime Osaka
  • Patent number: 5792526
    Abstract: A multilayer film of the invention is a five-layer resin film comprising one or more ethylene-.alpha.-olefin copolymers in each resin layer, wherein the density of the resin comprising each layer is as follows, in order from the outer layer:First layer: 0.935 to 0.950 g/cm.sup.3Second layer: 0.920 g/cm.sup.3 or lessThird layer: 0.925 to 0.950 g/Cm.sup.3Fourth layer: 0.920 g/cm.sup.3 or lessFifth layer: 0.925 to 0.940 g/cm.sup.3The container of the invention is formed by using this multilayer film, and is excellent in heat resistance, blocking resistance, tensile strength, flexibility, and transparency. The multilayer film and container of the invention are suited for medical applications, and others.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: August 11, 1998
    Assignee: Otsuka Pharmaceutical Factory, Inc.
    Inventors: Katsushi Watanabe, Hideshi Okamoto, Hirohisa Taniguchi
  • Patent number: 5792563
    Abstract: A preform (1), a method for blow molding a bottle, and a bottle (13) formed from the perform and by the method are disclosed for use with beverages and the like wherein the bottles usually contain such beverages under pressure. The preform is shaped so that the resultant bottle is provided with a product-containing portion having a preferred hemispherical end portion and an integral bottom portion including a void therein for defining a hollow base portion (4, 12) which, in one form, contains fluid under pressure for balancing pressure related to the pressurized product. The hollow base portion provides for efficient use of material, and a minimal number of manufacturing steps, for providing for a stable base for the hemispherical end portion (11) of the product containing portion of the bottle.
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: August 11, 1998
    Inventor: Gautam Mahajan
  • Patent number: 5789044
    Abstract: The invention relates to a method improving the storage qualities of a container or film holder comprising providing a container wherein at least a portion of the structure of said container comprises a molecular sieve or calcium, magnesium, or aluminum salt.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: August 4, 1998
    Assignee: Eastman Kodak Company
    Inventors: Arunachalam Tulsi Ram, Brett Zippel Blaisdell, Diane Marie Carroll-Yacoby
  • Patent number: 5786054
    Abstract: Forming a novel double containment polymeric piping assembly by interfitting slidably interfittable polymeric inner pipe components, including a first induction responsive layer therebetween, and slidably interfittable polymeric outer pipe components, preferably including a second induction responsive layer therebetween, to form an inner connection and an outer connection, while causing the inner connection to be axially offset from the outer connection, applying an electrical induction force around the periphery of the outer pipe components, axially aligned with the inner connection but not with said outer connection, and thereby fusing the inner pipe components and the first polymeric layer together, and moving the components relative to said electrical induction force, axially away from the inner connection, and axially aligned with the outer connection, applying an inductive force around the periphery of the outer pipe components, and thereby fusing the outer pipe components and the second polymeric layer
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: July 28, 1998
    Assignee: Nibco Inc.
    Inventors: Bruce M. Platusich, Dennis E. McAtamney
  • Patent number: 5783319
    Abstract: A composite glass film waveguide tunable laser is described, wherein the film is about 10-80 wt. % silica, 20-90 wt. % metal oxide, and 0-90 wt. % polyacrylate, and the film is doped with a tunable organic monomeric laserdye and deposited on a substrate, said film having a higher refractive index than that of said substrate. Processes of preparation are also disclosed.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: July 21, 1998
    Assignee: Yissum Research Development Company of the Hebrew University of Jerusalem
    Inventors: Renata Reisfeld, Dimitri Shamrakov, Yoram Sorek
  • Patent number: 5783267
    Abstract: A method for manufacture of glassware with an EM Culture embedded in the glass matrix to improve the palatability of foods or drinks is disclosed. A suitable amount of broth or stock made from fish is mixed with hot water and then a suitable amount of an EM Culture is added to the broth/hot water mixture. The resulting mixture is added to raw materials for glass in a suitable proportion. The mixture is then subjected to aging for a sufficient period of time to have activated the an. EM Culture contained therein. Thereafter, the mixture is melted and formed into a glass article of a desired shape.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: July 21, 1998
    Inventor: Taro Soejima
  • Patent number: 5783637
    Abstract: A plastic container made from a fusion blend of a post consumer plastic and ethylene polymers and comprising post consumer resin of homopolymer high density polyethylene resin and a small amount of linear low density polyethylene resin. In another form, the container is made from a blend of post consumer homopolymer high density polyethylene resin, virgin high density polyethylene resin with a small amount of linear low density polyethylene resin. The physical properties of the container including stress crack resistance are maintained as contrasted to the loss of such physical properties that have been heretofore resulted from the use of post consumer resins.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: July 21, 1998
    Assignee: Owens-Illinois Plastic Products Inc.
    Inventors: James N. Herman, James E. Hiltner
  • Patent number: 5783270
    Abstract: The invention provides a film, a package and methods for employing the same. The film has a first layer of an elastomer and a second layer of a polyethylene such as a single site catalyst polyethylene. The film can have a third layer of a polyethylene such that the second layer is disposed between the first and third layers. The polyethylene of the third layer also can be single site catalyst polyethylene and, the elastomer of the first layer can be styrene butadiene copolymer. The film has an oxygen transmission rate of up to about 1000, such as 150-450 cc/100 in.sup.2 /24 hr., typically 260-400 cc/100 in.sup.2 /24 hr., with values of 300, 350-360, 400 cc/100 in.sup.2 /24 hr. and even higher exhibited by the film. The film is suitable for packages, for instance, packaging for cole slaw and leafy salad. The film also exhibits excellent clarity, durability, seal strength and machinability.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: July 21, 1998
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: David C. Fischer, James I. Ririe, Richard Mink, Monty Bates
  • Patent number: 5780128
    Abstract: A polymeric composition which comprises post consumer PET and a first virgin PET is employed to form a laminate with a second virgin PET. The laminate is used in forming PET preforms which are blow molded into beverage containers.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: July 14, 1998
    Assignee: PepsiCo Inc.
    Inventor: Said K. Farha
  • Patent number: 5780127
    Abstract: A dimensionally stable and static dissipative carrier for semiconductor wafers or magnetic storage disks that has exceptionally low particle generation characteristics. The carrier having opposing side walls and connecting walls, the side walls having ribs defining slots for axial arrangement of the disks or wafers. The side walls, ribs, and end walls are all integral and formed of injection molded polybutyl terephtahalate (PBT) with sufficient carbon fiber filler for a surface resistivity less than 10.sup.12 ohms per square.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: July 14, 1998
    Assignee: Flouroware, Inc.
    Inventor: Kirk J. Mikkelsen
  • Patent number: 5777069
    Abstract: A tubular extrusion molding product comprising a high molecular weight polyarylene sulfide having a melt viscosity of from 3,100 poise to 60,000 poise produced by reacting an alkali metal sulfide and a dihaloaromtic compound in the presence of an organic amide solvent, cooling a gaseous phase part in the reaction zone during the reaction thereby condensating at least a part of the gaseous phase and refluxing the resultant condensate to a liquid phase in the reaction zone. A tubular extrusion molding product having further improved impact resistance can be provided by copolymerizing from 0.2 mol % to 1 mol % of a polyhaloaromatic compound to the alkali metal sulfide. A tubular extrusion molding product of improved impact resistance is provided by further applying a heat treatment of the polyarylene sulfide intermediate product thereby increasing the melt viscosity.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: July 7, 1998
    Assignee: Tonen Chemical Corporation
    Inventors: Takashi Tsuda, Hidenori Yamanaka, Osamu Komiyama