Patents Examined by Thomas J. Herbert
  • Biaxially oriented polypropylene film for metallizing applications
    Patent number: 4997700
    Abstract: A metallizable, heat-sealable, biaxially oriented multi-layer film for metallizing applications is described which comprises a base layer comprising polypropylene, a first polyolefinic heat-sealable surface layer and a second polyolefinic metallizable surface layer. The second polyolefinic metallizable surface layer comprises a propylene-ethylene copolymer, which has an ethylene content of 1.2 to 2.8% by weight, a distribution factor V.sub.F greater than 10, an enthalpy of fusion .DELTA. H.sub.m greater than 90 J/g and a thermo-oxidation temperature T.sub.ox greater than 240.degree. C.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: March 5, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Lothar Bothe, Gunter Schloegl
  • Composite material of aluminum and glass fiber mat, method for its production, and method for utilization as insulator for vehicles
    Patent number: 4996095
    Abstract: A layered composite material of aluminum and glass fibers for use as an insulator and a clamping device for use in conjunction with such composites.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: February 26, 1991
    Assignee: Vereinigte Aluminum Werke A.G.
    Inventors: Hans Behdorf, Thomas Singe, Gerhardt Sollner
  • High capacitance laminates
    Patent number: 4996097
    Abstract: High capacitance laminates made of thin films of polytetrafluoroethylene filled with large amounts of dielectric filler, in which the films are plated or clad with conductive material.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: February 26, 1991
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Paul Fischer
  • Transparent laminated product
    Patent number: 4996105
    Abstract: A transparent laminated product comprising a transparent substrate and a 5-layered transparent coating composed of a first transparent oxide layer formed on the substrate, a second Ag layer formed on the first transparent oxide layer, a third first transparent oxide layer formed on the second layer, a fourth Ag layer formed on the third transparent oxide layer and a fifth transparent oxide layer formed on the fourth layer, and having a visible ray transmission of at least 60%, wherein the thickness of each Ag layer is from 60 to 250 A, and each transparent oxide layer comprises a material selected from the group consisting of SnO.sub.2, Sn.sub.1-x Zn.sub.x O.sub.y, and TiO.sub.2.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: February 26, 1991
    Assignee: Asahi Glass Company Ltd.
    Inventors: Takuji Oyama, Koichi Suzuki, Mamoru Mizuhashi
  • Pellicle
    Patent number: 4996106
    Abstract: A pellicle is compose of a pellicle frame, a pellicle film spread on one side face of the pellicle frame, and a tacky substance layer having a high light transmittance formed on the inner side face of the pellicle film.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: February 26, 1991
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Hiroaki Nakagawa, Hitomi Matsuzaki
  • Waterproofing membrane
    Patent number: 4994328
    Abstract: Adhesive, waterproof membranes capable of adhering to freshly poured concrete compositions upon curing. The waterproof membranes of this invention comprise a bituminous sheet having at least one major surface coated with a non-tacky polymeric coating composition which contains a water-insoluble polymer, and optionally a filler capable of absorbing or reflecting infrared or ultra violet radiation and/or a plasticizer. Suitable water-insoluble polymers for use in this invention include alpha-beta-ethylenically unsaturated carboxylic acid polymers or polyvinyl alcohol polymers.
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: February 19, 1991
    Assignee: W. R. Grace & Co.-Conn.
    Inventor: Joseph A. Cogliano
  • Flexible packing laminate in the form of sheets or of a web, a method for the manufacture of the laminate and packing containers manufactured from the laminate
    Patent number: 4994310
    Abstract: In the manufacture of packing containers by means of folding of laminate in the form of sheets or of a web of the type which comprises a relatively thick carrier layer (2) of paper or cardboard and a gas-tight, thin metal foil (5) the laminate is subjected to stresses which, particularly within folding regions comprising multiple material thicknesses, may be so strong that crack formations occur in the metal foils protecting against gas which are sensitive to tension, thus entailing the risk of the intended gas barrier characteristics of the packing container being impaired or wholly lost.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: February 19, 1991
    Assignee: Roby Teknik Aktiebolag
    Inventors: Peter Frisk, Lars Lofgren
  • Low temperature waterproofing laminates
    Patent number: 4992334
    Abstract: Disclosed are methods for waterproofing civil engineering structures using flexible, sheet-like waterproofing laminates which are applied to structures at temperatures as low as 0.degree. F. Also, disclosed are low-temperature-applicable waterproofing laminates having a bituminous layer comprising 29 to 54 weight percent asphalt, 25 to 50 weight percent process oil, and 16 to 35 weight percent thermoplastic block polymer of styrene and butadiene monomers.
    Type: Grant
    Filed: January 10, 1989
    Date of Patent: February 12, 1991
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Lawrence J. Kindt, James M. Gaidis, Jay S. Kellett
  • Laminate of metal sheets and continuous filaments-reinforced thermoplastic synthetic material, as well as a process for the manufacture of such a laminate
    Patent number: 4992323
    Abstract: Fatigue resistant laminate which may be used at temperatures >120.degree. c., and more particularly in the construction of (air or space) vehicles. It comprises at least two metal plates interconnected by an intermediate layer of thermoplastic material reinforced by continuous filaments having a modulus of elasticity of at least 50 GPa, the laminate displaying, while externally unloaded, a compressive stress (of 0-200 MPa) in every metal plate and a tensile stress (of 0-500 MPa) in the continuous filaments. The filaments may consist of aramid, glass or carbon. The thermoplastic material may be an amorphous resin having a Tg>140.degree. C. such as, e.g., polyarylates, poly(ether)sulphones, polyetherimides, or poly-p-phenylene ethers, or a semi- or para-crystalline resin having a crystalline melting point>170.degree. C., such as poly-phenylene sulphides, polyetherketones or liquid crystal polymers.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: February 12, 1991
    Assignee: Akzo NV
    Inventors: Laurens B. Vogelesang, Leendert G. Meyers, Tom M. van Velze
  • Low reflectance, highly saturated colored coating for monolithic glazing
    Patent number: 4990408
    Abstract: A transparent article for reflecting solar energy comprising a tin/antimony oxide film which exhibits color by interference effects and a reflective metal film preferably comprising chromium is disclosed along with a sputtering method for its production.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: February 5, 1991
    Assignee: PPG Industries, Inc.
    Inventor: Frank H. Gillery
  • Medium related members
    Patent number: 4988573
    Abstract: A plasma-polymerized film covers a surface of a medium related member which constructs or is disposed in a casing in which a tape or disk-shaped recording medium is receiving for travel or rotating motion. The film contains C, F and at least one element of Si, B, P and N. The total content of F and at least one element of Si, B, P, and N ranges from 5 to 40 atom % of the film, and the atomic ratio of (Si+B+P+N)/F ranges from 2/10 to 5/1.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: January 29, 1991
    Assignee: TDK Corporation
    Inventors: Masatoshi Nakayama, Kunihiro Ueda, Masatoshi Okamura
  • Shrinkable, conformable microwave wrap
    Patent number: 4985300
    Abstract: A heat shrinkable film is useful for packaging and for cooking a food item in a microwave oven is provided, which comprises a layer of flexible, heat resistant, microwave transparent base film which exhibits shrinkage of at least about 10% when heated unrestrained to 100.degree. C. for 5 seconds, and a layer of microwave susceptor material extending over the base film in an amount sufficient to cause the film to heat under microwave cooking conditions to provide browning or crisping of the food item.
    Type: Grant
    Filed: December 28, 1988
    Date of Patent: January 15, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Hua-Feng Huang
  • Polytetrafluoroethylene film
    Patent number: 4985296
    Abstract: A filled PTFE film is prepared by compressing an expanded, porous PTFE film that contains filler material. The films have high strength with substantially few pinholes.
    Type: Grant
    Filed: March 16, 1989
    Date of Patent: January 15, 1991
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: William P. Mortimer, Jr.
  • Composite materials
    Patent number: 4985297
    Abstract: A laminate consisting essentially of a metal film or sheet and a film or sheet of a fluorine-containing polyimide (1), a composite sheet consisting essentially of a fluorohydrocarbon polymer substrate impregnated with a fluorine-containing polyimide (2), and a laminate consisting essentially of a metal film or sheet and the above composite sheet, the polyimide (1) and (2) being defined in the specification.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: January 15, 1991
    Assignee: Daikin Industries, Inc.
    Inventors: Shinji Tamaru, Motonobu Kubo, Osamu Tanaka, Tsutomu Kobayashi
  • Method for coated surgical instruments and tools
    Patent number: 4981756
    Abstract: A process for producing corrosion resistant and wear resistant medical tools and instruments by coating high strength low-carbon martensitic stainless steels with a thin, hard layer of refractory metal compound, preferably via cathodic arc plasma deposition technology. The invention also covers the coated medical tools produced via such process.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: January 1, 1991
    Assignee: Vac-Tec Systems, Inc.
    Inventor: Harbhajan S. Rhandhawa
  • Laminated film
    Patent number: 4978572
    Abstract: A laminated film which comprises an uniaxially molecular oriented thermoplastic resin film layer containing 0.3 to 30 wt. % of white inorganic particles having a mean particle size of 0.01 to 50 .mu.m, an ethylene copolymer resin film layer containing more than 10 wt. % of ethylene copolymer resin, a substance having antiblocking action and an antioxidant and having a melting point of lower than said uniaxially molecular oriented thermoplastic resin film layer, and a metallized thermoplastic resin film layer interposed between said uniaxially molecular oriented thermoplastic resin film layer and said ethylene copolymer resin film layer.The laminated film of the invention hardly curls, and it is excellent in tear strength and heat sealing properties. Moreover, when the package is severely shaken during transportation, moistureproofness and lint-free ability can be still secured.
    Type: Grant
    Filed: January 11, 1990
    Date of Patent: December 18, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Mutsuo Akao
  • Protective cladding for a molybdenum substrate
    Patent number: 4977001
    Abstract: A cladding for a molybdenum body such as a molybdenum tube for protecting the molybdenum from corrosive high temperature environments. The cladding contains oxides of molybdenum, aluminum, silicon and alkali metals in about the following percentages by weight of the total metal content: molybdenum 18-40 percent; aluminum 10-25 percent; silicon 25-50 percent; and, alkali metals 8-12 percent. The cladding may be formed by bringing the molybdenum body into contact in the presence of oxygen, with a refractory containing oxides of aluminum, silicon and alkali metals at a temperature greater than 400.degree. C.
    Type: Grant
    Filed: January 20, 1988
    Date of Patent: December 11, 1990
    Assignee: Vesuvius Crucible Company
    Inventor: David C. Greenspan
  • Strips of came and method for producing the same
    Patent number: 4977010
    Abstract: The elongated strips of came have a U-shaped cross section or an H-shaped cross section. An elongated strip of resilient cushion layer having an adhesive coating on its top surface is pressed into mating contact with the inside surface of the came. The resilient cushion layer functions to prevent chatter or rattle of glass panes that have their edge surface inserted into the came strips. The came acts like a bony skeleton to hold individual pieces of glass pane together in an assembly such as found in book cases and stained glass windows.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: December 11, 1990
    Inventor: John G. Washa
  • Composite PVDC-coated polyester films
    Patent number: 4977032
    Abstract: Composite, typically coextruded polyvinylidene chloride (PVDC)-coated polyester films, well adapted, e.g., as packaging materials, include a sulfonated copolyester interlayer which serves as a primer for improvedly adhering the PVDC topcoat to the polyester base.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: December 11, 1990
    Assignee: Rhone-Poulenc Films
    Inventor: Pierre Grosjean
  • Structural composites of fluoropolymers reinforced with continuous filament fibers
    Patent number: 4975321
    Abstract: A composite comprising a fluoropolymer resin matrix reinforced with continuous filament aligned fibers for use in corrosive high temperature environments.
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: December 4, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Wayne F. Gentile, Harvey L. Kliman