Patents Examined by Hoa T. Le
  • Friction lining
    Patent number: 5585166
    Abstract: A friction lining (5) for a device which is cooled with fluid or lubricant and is intended for transferring torque, in particular a friction clutch, synchronizing element or brake, the friction lining being fastened on a carrier body (2) in order to form a friction surface (6) and the torque being transferred to a counter-surface, is constructed from at least two different layers, and in particular from at least one porous substrate (11, 11') which is fastened on the carrier body (2) and which is constructed like a composite material from a cellulose base with synthetic fibers and filler, and from a porous friction layer (12) which is fastened on the substrate (11,11') and is made of synthetic fibers, preferably carbon, which are bonded with a thermoset resin.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: December 17, 1996
    Assignee: Hoerbiger & Co.
    Inventor: Andrew Kearsey
  • Magnetic iron oxide particles and method of producing the same
    Patent number: 5582914
    Abstract: Disclosed herein are magnetic iron oxide particles which have a spindle shape and a substantially uniform particle size and shape, and are substantially free of dendrites and have a large axial ratio (major axial diameter/minor axial diameter) and an excellent print-through characteristic, and a method of producing the same.
    Type: Grant
    Filed: February 16, 1994
    Date of Patent: December 10, 1996
    Assignee: Toda Kogyo Corp.
    Inventors: Atsushi Takedoi, Mamoru Tanihara, Tosiharu Harada, Masaru Isoai, Kazuhiro Fujita
  • Polysulfide composites and method
    Patent number: 5582898
    Abstract: A fire retardant mat is disclosed comprising rubber particles bonded together with a binder containing an elastomeric polysulfide and a polyolefin, with the mat also containing a fire retardant. A composite is also disclosed in which the mat is coated with a fire retardant coating in which an elastomeric polysulfide is part of the coating. Further, there is disclosed a method of making the mat by extrusion and also of placing a fire retardant coating on the mat after extrusion.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: December 10, 1996
    Assignee: Environmental L.L.C.
    Inventor: Weldon C. Kiser
  • Durable polymeric deposits on inorganic material substrate
    Patent number: 5580657
    Abstract: As an article of manufacture, a composite, which comprises in combination an inorganic material substrate, a polymeric agent which is at least partially water-soluble, and a substance binding the polymeric agent to the inorganic material substrate, such that there is a decreased tendency of the agent toward removal from the composite by an aqueous medium; and methods of making and using same.
    Type: Grant
    Filed: February 8, 1994
    Date of Patent: December 3, 1996
    Assignee: Potters Industries Inc
    Inventors: Robert A. Schleifstein, Edward Smith, Jr.
  • Elastomeric polysulfide composites and method
    Patent number: 5580638
    Abstract: An elastomeric polysulfide composite in which rubber particles, particularly crumb rubber, are distributed substantially uniformly through an elastomeric polysulfide layer, roofing made from such composites, and the method of forming roofing in which the composite is associated with a rubber particle mat.
    Type: Grant
    Filed: July 21, 1995
    Date of Patent: December 3, 1996
    Assignee: Environmental L.L.C.
    Inventor: Weldon C. Kiser
  • Biaxially oriented polyester film containing an aluminum hydrate
    Patent number: 5580652
    Abstract: The present invention relates to a biaxially oriented polyester film comprising the inorganic particulate slip agent of aluminum hydroxide or .THETA.-alumina having an average diameter ranging from 0.1005 to 3 .mu.m and Mohs hardness of 6 or more, in an amount ranging from 0.01 to 4 wt % based on the weight of the polyester, which has improved surface properties, abrasion resistance and scratch resistance.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: December 3, 1996
    Assignee: SKC Limited
    Inventors: Young-Jin Lee, Kwang-Hyung Lee, Seung-Soo Woo, Je-Wung Lee, Joon-Hee Han, Nam-Il Kim
  • Grafted fluoropolymer powders
    Patent number: 5576106
    Abstract: Compounds containing polar functional entities can be grafted onto the surface of fluoropolymer powders to obtain grafted fluoropolymer powders having modified surface characteristics but without modifying the bulk of the polymer in the particle. The grafted fluoropolymer powder is effective in such uses as an adhesive to join dissimilar materials.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: November 19, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Dewey L. Kerbow, Hermann Jenewein
  • High brightness durable retro-reflecting microspheres and method of making the same
    Patent number: 5576097
    Abstract: High brightness durable retro-reflecting microspheres for retro-reflection and related uses (and a novel method of forming the same) is provided embodying a retro-reflective vitreous glass microsphere encapsulated in a hardened clear non-vitreous metal-oxide ceramic shell of substantially the same index of fraction as the microsphere.
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: November 19, 1996
    Assignee: Brite-Line Industries, Inc.
    Inventor: Charles W. Wyckoff
  • Fine dot-like tone decorative laminates containing pigmented fibers
    Patent number: 5573827
    Abstract: Disclosed is a decorative laminates having a decorative paper and having a fine dot-like tone appearance. The decorative paper contains pigment(s) having a mean particle size of from 20 to 100 .mu.m and/or powdery colored fibers having a mean fiber length of from 50 to 2000 .mu.m as incorporated thereinto during papermaking. The fine dotlike tone appearance of the sheet is durable and is hardly worn away.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: November 12, 1996
    Assignees: Kohjin Co., Ltd., Aica Kogyo Co., Ltd.
    Inventors: Yoshikazu Kubota, Sunao Matsushima, Shigeo Takashima, Tsuneo Mitsuhasi, Takashi Kamiya
  • Anisotropic nanophase composite material and method of producing same
    Patent number: 5571612
    Abstract: An anisotropic nanophase composite material and a method of producing same. The composite material comprises a nanophase composite structure containing a multiplicity of particulates of at least one material. The particulates of one material are spaced from each other three-dimensionally and anisotropically oriented in a given direction. The particulates have an average thickness of 1 to 10 nanometers and an average length of not less than 10 nanometers, the length being larger than the thickness. Since the particulates of dimensions on the order of nanometers are oriented only in a given direction, the composite material produces an intensified nonlinear optical effect and is excellent in polarizing characteristics, birefringent characteristics, or photovoltaic characteristics.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: November 5, 1996
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Tomoyoshi Motohiro, Yasuhiko Takeda, Shoji Noda, Yoshihide Watanabe
  • Reactant in the form of granules for thermochemical systems
    Patent number: 5569534
    Abstract: Reactant for thermochemical systems, including a support which is, for example, recompressed expanded graphite or vermiculite, and an active agent, for example a salt. According to the invention, the support is in the form of granules of graphite having a density of between 0.20 and 0.5 g/cm.sup.3 and whose diameter lies between 0.2 cm and 2.5 cm.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: October 29, 1996
    Assignee: Elf Aquitaine
    Inventors: Benoit Lambotte, Bernard Spinner, Charles Timoney, Jacques Prosdocimi
  • Composition for use in dry products
    Patent number: 5567519
    Abstract: A composition that when added to a dry material that is subsequently compacted, decreases the porosity of the resultant compacted material while improving the density and strength of the compacted material. The substantially dry composition comprises refractory aggregate coated with an organic compound. Preferably the coated aggregate has a size wherein at least 50% of the coated aggregate will pass a 100 mesh screen. Also disclosed is a method for making such a composition.
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: October 22, 1996
    Assignee: Martin Marietta Magnesia Specialties, Inc.
    Inventors: Clement P. Stoney, III, James W. Stendera, Keith Bridger
  • Organosilicon treatment of TiO.sub.2 pigment bearing a coating with fluoride ions
    Patent number: 5562990
    Abstract: Organosilicon treatment of TiO.sub.2 particles coated with alumina or alumina-silica having a fluoride compound or fluoride ions associated with them is disclosed to improve properties such as photostability and humidity resistance when incorporated in powder coatings and/or plastics.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: October 8, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Patricia A. Tooley, Philipp M. Niedenzu, Austin H. Reid, Jr.
  • Poly(vinyl chloride) compositions exhibiting increased adhesivity to polyamide and multi-layer structures comprising the same
    Patent number: 5324588
    Abstract: Improved poly(vinyl chloride) compositions which exhibit improved adhesivity to polyamide which find particular utility in the construction of multi-layer structures, particularly for the fabrication of improved structures for use in forming electrical insulation structures for wires and cables. In one useful embodiment, the multi-layer structure has in the following order: a layer of PVC and a layer of polyamide in contact with the layer of PVC wherein the layer of PVC includes a vinyl chloride containing copolymer or a terpolymer which exhibits good solubility with the PVC, and which further provides good adhesivity with the PA. The vinyl resin is selected from the group consisting of vinyl chloride-vinyl acetate-vinyl alcohol terpolymers.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: June 28, 1994
    Assignee: Allied-Signal Inc.
    Inventors: Robert E. Rinehart, Andrew M. Zweig, Peter J. Kartheiser
  • High abrasion resistance coating materials from organic/inorganic hybrid materials produced by the sol-gel method
    Patent number: 5316855
    Abstract: A series of new high abrasion resistance coating materials have been prepared utilizing organic/inorganic hybrid materials formed by cohydrolyzing a metal alkoxide sol (e.g. silicon, aluminum, titanium, or zirconium metal alkoxide sol) with one or more bis(trialkoxysilane-containing) organic components or related functionalized species. These hybrid materials show optical clarity and improve the abrasion resistance of polymer substrates when applied as coatings and cured on such substrates.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: May 31, 1994
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: Bing Wang, Garth L. Wilkes
  • Ultrahigh molecular weight polyethylene and lightly-filled composites thereof
    Patent number: 5292584
    Abstract: Homogeneous, particulate composites are provided, of about 75-99.5 weight percent ultrahigh molecular weight polyethylene (UHMWPE) and about 0.5-25 weight percent of at least one filler compound, and wherein the composites have a surface area of at least about 4 m.sup.2 /g. The particulate UHMWPE is also provided without the filler. Dense, load-bearing articles of these materials are formed by cold-pressing and free-sintering procedures. Cold-pressable, free-sinterable blends of commercial UHMWPE containing at least 25 weight percent of the composites or unfilled UHMWPE of the invention are also provided.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: March 8, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Edward G. Howard, Stuart M. Nemser
  • Polyester film having specific surface properties
    Patent number: 5271985
    Abstract: This invention relates to a polyester film suited for use in optical recording medium. The polyester film of the present invention has a modulus of photoelasticity of not more than 0.9.times.10.sup.-3 mm.sup.2 /kgf, a maximum surface roughness Rt of not more than 100 nm and a mean interval Sm between adjacent surface projections of not less than 20 .mu.m, so that light scattering and interference are not caused, and optical strain is not generated even when a thermal stress or external force is exerted to the film. Thus, the polyester film of the present invention can be used as the supporting layer or cover layer of optical recording media such as optical cards, optical disks and optical recording tapes.
    Type: Grant
    Filed: July 30, 1991
    Date of Patent: December 21, 1993
    Assignee: Toray Industries, Inc.
    Inventors: Kenji Tsunashima, Seizo Aoki, Masaru Suzuki, Toshihiko Hiraoka
  • Lightweight and low thermal expansion composite material
    Patent number: 5259435
    Abstract: A method of forming a metallic composite product having a specific gravity no greater than 1.8 and a thermal expansion no greater than 16.times.10.sup.-6 .degree. C. in a preheated mold. The portion of the mold between a cavity and the gate has a stainless steel wire gauge for retaining particles. The mold is filled with screened fly ash, glass, hollow spheres having a particle size in the range of 50 to 200 micrometers and a globularness of at least 90%, which has been preheated to the same temperature as the mold. Molten aluminum alloy is injected into the mold at a pressure in the range of from 40 to 80 kgf cm.sup.2 at the gate and at a flow velocity in the range of 0.08 to 0.20 m/second.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: November 9, 1993
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Hirohisa Miura, Masaoki Hashimoto, Mamoru Okamoto, Shoichi Tsuchiya, Wataru Yagi, Masami Ishii
  • Partially dehydrated vermiculite flakes and method of making same
    Patent number: 5254410
    Abstract: Intumescent vermiculite flakes useful in mountings of catalytic converters are prepared by partially dehydrating vermiculite ore to afford a uniform content of chemically bound water from about 1.0 to 3.2% by weight and a uniform bulk density from about 0.2 to 0.9 g/cm.sup.3. Such a mounting affords good support to the monolith at warm-up temperatures, exerts adequate holding forces at operating temperatures without danger of cracking the monolith, and does not incur gradual reduction in holding forces at operating temperatures. The mounting layer can be applied as either a mat or a paste.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: October 19, 1993
    Assignee: Minnesota Mining & Manufacturing Company
    Inventors: Roger L. Langer, Richard P. Merry
  • Fluorine-containing compounds
    Patent number: 5252400
    Abstract: Disclosed in this invention are novel fluorine-contianing compounds of a specific molecular structure having a fluoroalkylether terminal group, an aliphatic hydrocarbon terminal group and an imino terminal group in the same molecule and a molecular weight of from several hundred to about 3,000, and a process for preparing such compounds. The fluorine-containing compounds of this invention can be utilized as a lubricant composition for magnetic recording media.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: October 12, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Naoko Mizuno, Yoshiaki Kai, Takashi Suzuki