Silicon Containing Patents (Class 428/149)
  • Patent number: 5380549
    Abstract: A method for providing a traffic surface such as a path, roadway, passageway, deck, or airfield runway or taxiway with both anti-slip and retro-reflective characteristics. A first coating of paint is applied to the surface, solid particles are distributed onto the first coating such that the particles sink partially into the first coating, and a second coating of paint is applied over the particles and the first coating to lock the particles into the first coating with the particles projecting from the second coating. Before the second coating is set, retro-reflective beads are distributed over the second coating to sink partially into the second coating between the projecting particles. The beads are bonded into the second coating and project from the second coating. The beads are smaller than the particles and the particles project from the second coating by more than the beads to overshadow the beads.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: January 10, 1995
    Inventor: Eric J. Harvison
  • Patent number: 5376429
    Abstract: A laminated waterstop strip used in the construction of buildings that is placed on the top of a surface of a hardened concrete layer of footing, prior to pouring of an additional layer, and is made to have a number of granular layers held with adhesive between each of the layers, and having in the range of 30 to 60 individual granular layers so that the waterstop has a height of in the range of one-half to one inch. The waterstop strip is made up of bentonite granules, preferably, which are adhered to a fabric layer for support, an adhered layer on the exterior of the fabric layer, with a quick release paper on the exterior of the fabric layer. A light weight, synthetic fiber mesh for providing weather resistance, tear resistance, and retention properties is placed over the upper layer of particles.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: December 27, 1994
    Assignee: Paramount Technical Products Inc.
    Inventor: Patrick J. McGroarty
  • Patent number: 5358772
    Abstract: A material for an indication label to be adhered to a rubber tire. The label is designed to be disposed on an unvulcanized raw rubber tire and then fixed to the finished tire by vulcanization using heat and pressure. The indication label having a label base material with a heat-resistant plastic film and an abrasive surface coating layer formed on the upper surface of the plastic film. The abrasive surface being composed of a hardened resin and filler. An indication defined by an ink layer is disposed on the abrasive surface. A rubber adhesive laminated on the lower surface of the plastic film adheres the label to the tire. The label is constructed by forming the ink layer on the exterior side of the abrasive surface coating layer. The abrasive surface having a profile and roughness for preserving the quality of the indication.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: October 25, 1994
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Shunji Nakagawa, Takuya Mizuta, Ryuji Morimura, Tadao Nishikawa
  • Patent number: 5344704
    Abstract: A thick aesthetic laminate surface layer is achieved by using pre-cured particulates of the impregnating resin along with an initial binder material and preferably also abrasion resistant mineral particles. The protective overcoating may be applied in a thick layer to give gouge resistance and a deep look. Because the impregnating resin and the pre-cured particulates have the same index of refraction, the transparency of the coating and the resultant clarity of the underlying decor sheet are excellent.
    Type: Grant
    Filed: April 7, 1993
    Date of Patent: September 6, 1994
    Assignee: Nevamar Corporation
    Inventors: Robin D. O'Dell, Joseph A. Lex, Alice M. Simon
  • Patent number: 5338595
    Abstract: Retroreflective appliques comprising a monolayer of retroreflective elements partially embedded in and protruding from the front surface of a binder layer and an optional layer of adhesive on the rear surface of the binder layer, wherein the binder layer, the adhesive layer, or both contain a metal-azo dye to camouflage the color of any exposed portions of said binder layer. Appliques comprising micropheres with aluminum reflectors as retroreflective elements and a black metal-azo dye in the binder layer will exhibit a pleasing silver appearance even after portions of the binder layer have been visibly exposed due to degradation of the aluminum reflectors, typically as a result of subjecting the applique to harsh laundering conditions.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: August 16, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Wu-Shyong Li
  • Patent number: 5332612
    Abstract: The invention relates to a process for depositing a latex coating on an article made of elastomer,wherein a continuous layer of a hydrophilic inorganic pulverulent material is deposited at the surface of the elastomer and the said article is immersed in an aqueous latex suspension.The invention also relates to a composite article based on silicone elastomer comprising a latex coating, said composite article including a film made up of a hydrophilic inorganic pulverulent material at the interface between the silicone elastomer and the latex.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: July 26, 1994
    Assignee: Isoform
    Inventors: Gerard Payet, Constantin Tsangarakis
  • Patent number: 5324566
    Abstract: A water- and oil-repelling adsorbing film formed on a material having active hydrogen such as hydroxyl group, imino group and amino group at the surface. This film is a chemically adsorbed film having surface irregularities exceeding 10 nanometers. It is directly or indirectly covalently bonded to the material surface and includes a monomolecular film or a polymer film with the molecules thereof containing a fluorocarbon group and a --Si-- bond. The surface irregularities which exceed the molecular level are at least either those formed on the material surface itself, those due to particles formed on the substrate surface or those due to particles present in the chemically adsorbed film.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: June 28, 1994
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazufumi Ogawa, Mamoru Soga
  • Patent number: 5286555
    Abstract: For covering the outer surface of a structure, an outer surface structure of a layer of elastomeric material with a sheet of fabric embedded in the elastomeric material includes an outer coating of silica sand to receive a second layer of rigid material bonded and covering the surface structure, such as a gypsum material or plastic material.
    Type: Grant
    Filed: June 3, 1991
    Date of Patent: February 15, 1994
    Inventor: William C. Reed
  • Patent number: 5283101
    Abstract: Retroreflective appliques comprising a monolayer of retroreflective elements partially embedded in and protruding from the front surface of a binder layer and an optional layer of adhesive on the rear surface of the binder layer for securing the applique to a garment, wherein the binder layer comprises an electron-beam cured polymer selected from the group consisting of chlorosulfonated polyethylenes, ethylene copolymers comprising at least about 70 weight percent of polyethylene, and EPDM polymers.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: February 1, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Wu-Shyong Li
  • Patent number: 5242970
    Abstract: A rooftop curable heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter comprises a semi-crystalline polymer having more than about 2 percent by weight crystallinity and selected from the group consisting of polyolefins prepared from monomers containing at least 2 carbon atoms, a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures a processing material or mixtures thereof; and a cure package capable of allowing the composition of matter to cure at temperatures of at least about 50.degree. C.
    Type: Grant
    Filed: April 24, 1991
    Date of Patent: September 7, 1993
    Assignee: Bridgestone Corporation
    Inventors: James A. Davis, Joseph K. Valaitis
  • Patent number: 5236762
    Abstract: An abrasive film is disclosed, which comprises a film substrate having an abrasive layer on at least one side thereof, wherein said abrasive layer comprises abradant particles uniformly dispersed in at least one binder selected from water-soluble macromolecular substances and water-dispersible macromolecular substances, and a method for the production thereof is disclosed, which comprises: applying to at least one side of a film substrate a coating liquid, which is prepared by dispersing the abradant into an aqueous medium containing at least one binder selected from water-soluble macromolecular substances and water-dispersible macromolecular substances; or prepared by mixing the abradant and at least one binder selected from water-soluble macromolecular substances and water-dispersible macromolecular substances with an aqueous medium, and then drying the coated abrasive layer by heating.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: August 17, 1993
    Assignee: Somar Corporation
    Inventors: Yasuyuki Suzuki, Hiromi Masamura, Hikaru Honjo
  • Patent number: 5215804
    Abstract: Planar casting with a regularly textured surface on at least one side. A self-supporting planar casting made of polymer material and a process to produce the same are described. The planar casting contains at least one inert additive in an amount in the range of 0.001 to 5% by weight. At least one of it surfaces made from polymer forming the casting is textured by regularly arranged elevations in predominantly longitudinal and transverse direction of largely uniform configuration having a ratio of minimum diameter (d.sub.min) to maximum diameter (d.sub.max) in the range of ##EQU1## an average diameter (d.sub.m) of ##EQU2## in the range of 10 to 800 .mu.m. The elevations having a height in the range of 0.01 to 15 .mu.m.
    Type: Grant
    Filed: October 30, 1991
    Date of Patent: June 1, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hajo Hagens, Hermann Dallmann
  • Patent number: 5213869
    Abstract: This invention relates to corrugated roofing sheets for building, made of a mixture of cement and inert materials, reinforced with synthetic fibers in fibrillated mesh form, characterized by having a rough outer surface due to the presence of surface granular material. The granular material is applied to the sheets during their finishing but before the cement has started to set, by simply strewing it over the sheet surface.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: May 25, 1993
    Assignee: S.I.D.I. Societe Internationale de Developpements Industriels S.A. Holding
    Inventor: Sivio Magnani
  • Patent number: 5204159
    Abstract: A deformable slip-free, anti-skid pad comprising: a bottom surface having a plurality of spikes slightly extending vertically from recessed areas of the bottom surface; and a top surface comprising a resilient material having imbedded therein particles of abrasive materials.
    Type: Grant
    Filed: March 29, 1991
    Date of Patent: April 20, 1993
    Inventor: Domingo K. L. Tan
  • Patent number: 5120605
    Abstract: A low reflectance glass surface is disclosed which includes a particular combination of surface structures which produce a low reflectance yet high clarity glass. The surface structure includes a plurality of islands distributed at a density of about 60 to 10,000 islands per square millimeter. The glass surface also includes a skeletalized silica structure of 200 to 600 angstroms in diameter, uniformly distributed over the surface. By combining the various surface structures on one piece of glass, unique properties of low reflectance yet high clarity are provided, which is particularly suitable for use in picture frames where any distortion would distract from viewing a picture contained therein and also in computer or t.v. screens where distortion or glare could produce operator fatigue or stress. The glass structure is achieved by a process which is readily adaptable to existing production lines without requiring major modifications.
    Type: Grant
    Filed: March 27, 1990
    Date of Patent: June 9, 1992
    Assignee: Zuel Company, Inc.
    Inventors: David C. Zuel, Juei-Hua Lin
  • Patent number: 5094902
    Abstract: A skid-resistant, surface marking material is disclosed. The skid-resistant, surface marking material comprises a polymer matrix phase and a plurality of opaque ceramic spheroids partially embedded in and protruding from the top surface of the matrix layer. The ceramic spheroids have rounded surfaces and no substantial points.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: March 10, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Robert A. Haenggi, James A. Laird
  • Patent number: 5079088
    Abstract: A waterproof sheet used to waterproof structures has a single layer of non-degradable, water impermeable polymeric membrane that has layers of particles of non-hydrated sodium montmorillonite (sodium bentonite) adhering to the membrane in a uniform layered thickness. The layers of particles of sodium montmorillonite spaced from the membrane adhere to each other, with a coating material (adhesive) that is designed to provide the necessary performance for waterproofing. A water soluble dye is provided in the layer of particles so if a tear occurs in the impermeable membrane and water contacts the particles, the dye will stain the membrane and mark the location of the tear.
    Type: Grant
    Filed: March 19, 1991
    Date of Patent: January 7, 1992
    Assignee: Paramount Technical Products, Inc.
    Inventors: Bryan M. McGroarty, Patrick J. McGroarty
  • Patent number: 5077118
    Abstract: A stamping foil comprising:(a) a biaxially oriented polyester film containing as a first component from 0.01 to 0.5% by weight of spherical silica particles having an average particle diameter of from 0.03 .mu.m and smaller 0.3 .mu.m and a particle diameter ratio defined as a ratio of long diameter/short diameter of from 1.0 to 1.2, and as a second component from 0.002 to 0.2% by weight of spherical silica particles having an average particle diameter of from 0.6 to 3 .mu.m and a particle diameter ratio defined as a ratio of long diameter/short diameter of from 1.0 to 1.2, provided that the content of said second component is the same as or less than the content of said first component,(b) a release layer provided on one surface of said biaxially oriented polyester film (a), and(c) a cover layer provided on siad release layer (b).
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: December 31, 1991
    Assignee: Teijin Limited
    Inventors: Kinji Hasegawa, Yuzuru Izumi, Yoji Murakami
  • Patent number: 5077117
    Abstract: A pavement marking material comprises a flexible base sheet that is conformable to an irregular pavement surface. A durable, wear-resistant, polymeric top layer is adhered to one surface of the base sheet. The top layer is capable of undergoing brittle fracture at a temperature from 0.degree. C. to 45.degree. C. such that when the base sheet conforms an irregular surface, the top layer readily forms ruptures to relieve stress build-up in the top layer as the regions of the top layer defined by the ruptures remain adhered to, and follow the conformance of, the base sheet. A plurality of particles are embedded in and protrude from the top layer. The particles comprise retroreflective beads and skid-resistant granules. In a preferred embodiment, the top layer is characterized by a Young's modulus of from about 50,000 psi to about 300,000 psi, and a percent elongation at break of from about 4% to about 35%.
    Type: Grant
    Filed: April 5, 1990
    Date of Patent: December 31, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James H. C. Harper, Raymond E. Grunzinger, Jr.
  • Patent number: 5011727
    Abstract: The present invention provides a polyimide resin laminate of one layer of a polyimide resin film and one or more layers of activated fluorine resin films, wherein undulations of 0.03-5 .mu.m are formed on the outer surface of the fluorine resin films. According to the present invention, the slidability of the laminate is improved, trouble in the course of taping due to poor slidability is prevented, the taping workability is markedly improved and an improved quality of polyimide laminates is provided.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: April 30, 1991
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masaro Kido, Tetsuo Yoshioka
  • Patent number: 4996114
    Abstract: A coated substrate in which the coating includes abrasion-resistant particles protruding from the hardened surface of a metal matrix and is bonded to the substrate.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: February 26, 1991
    Assignee: The Dexter Corporation
    Inventor: David S. Darrow
  • Patent number: 4988554
    Abstract: A coated abrasive article comprising a backing bearing on one major surface thereof a layer of abrasive grains overcoated with a loading resistant coating and on the other major surface thereof a layer of pressure-sensitive adhesive. The loading resistant coating comprises a lithium salt of a fatty acid. It may also contain additives selected from the group consisting of surfactants, wetting agents, binders, anti-foaming agents, fillers, plasticizers, and mixtures thereof. The use of a lithium salt of a fatty acid significantly reduces the amount of transfer between the loading resistant coating of a first coated abrasive article and the pressure-sensitive adhesive layer of a second coated abrasive article disposed within a package.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: January 29, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Scott W. Peterson, Marvin J. Schroeder
  • Patent number: 4959256
    Abstract: A cooking utensil having an enamel coating of a first enamel layer (7) covered in the zone of the bottom (1) of the utensil with a second enamel layer (3) which is in turn covered with a non-continuous third enamel layer (4) constituting a decoration and applied by screen process after drying of the first layer, these three layers (7, 3, 4) being obtained from an enamel frit and being fired simultaneously.The two enamel layers (3, 4) contain glass beads (5, 6), at least a certain number of which have a diameter of greater value than the thickness of these enamel layers and project from the surface of the layers, a certain number of beads (6) of the non-continuous third layer (4) being applied on beads (5) of the second layer (3). The second layer also contains heat-conducting flakes.The enamel coating offers enhanced resistance to wear and high thermal conductivity.
    Type: Grant
    Filed: December 27, 1988
    Date of Patent: September 25, 1990
    Assignee: SEB S.A.
    Inventor: Henri Piera
  • Patent number: 4952449
    Abstract: A biaxially oriented polyester film suited as a substrate for magnetic recording media. The film comprises a polyester and inert particles and has at least one surface with protrusions formed by the existence of the inert particles. The surface has a parameter of surface topography .sqroot.(.beta./.sigma.) of 0.1 to 0.7. The average distance between adjacent protrusions is not more than 20 um and the coefficient of friction of the surface and the parameter of surface topography satisfies the following equations (1) and (2): ##EQU1## wherein y is the coefficient of friction, .beta. is mean flatness of protrusions and .sigma. is standard deviation of height distribution of protrusions.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: August 28, 1990
    Assignee: Toray Industries, Inc.
    Inventors: Iwao Okazaki, Koichi Abe, Shoji Nakajima, Kiyohiko Ito, Satoru Nishino, Hidehito Minamizawa
  • Patent number: 4937127
    Abstract: A skid-resistant pavement marking sheet including a top surface and a plurality of skid-resistant ceramic spheroids embedded in and protruding from the surface. The ceramic spheroids are fired from a raw material mixture including 10-97 wt. % mineral particulates, 3-90 wt. % alumina, and at least 1 wt. % binder, at a temperature of about 1300.degree. C., have an outer surface rich in alumina concentration relative to the center of the spheroid, and are resistant to crushing and fracturing.
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: June 26, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Robert A. Haenggi, James A. Laird
  • Patent number: 4931330
    Abstract: The invention relates to a prefabricated, slip-resistant surface coating which comprises a sheet member having a film on its surface, said film embedded therein in plurality of finely divided abrasive particles. This coating can be adapted to make a bathtub surface slip-resistant.
    Type: Grant
    Filed: March 29, 1988
    Date of Patent: June 5, 1990
    Inventors: Sam S. Stier, Robert E. Kaufman
  • Patent number: 4906509
    Abstract: The present invention provides a two layered refractory plate consisting of a crack-resistant substrate with a grained surface layer embedded thereon. This two layered refractory plate is suitable for use as a shelf plate in a furnace in which the temperatures vary. Cracks due to thermal expansion differences in the material can be prevented.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: March 6, 1990
    Assignee: Shinagawa Refractories Co., Ltd.
    Inventors: Hideaki Nishio, Akira Matsuo, Katsunori Ito, Keisuke Uemori
  • Patent number: 4892790
    Abstract: Composites comprising high-temperature fibers reinforcing a carbonous matrix are protected from oxidation by a B.sub.2 O.sub.3 -based glass which includes a refractory oxide to stabilize the viscosity of the glass. Precursors of B.sub.2 O.sub.3 and the refractory oxide are dispersed into a carbon char-yielding material; the material is used to impregnate sheets of fibers; the sheets are laid up as plies; and the laid-up plies are carbonized and graphitized using heat and pressure to form a composite structure. The composite structure is then coated with an additional mix of char-yielding material and precursors, and the coated structure is heated to carbonize the material and leave a seal coat on the structure. Then, an outer coating of a refractory material is deposited on the structure. Oxygen which seeps through the seal coat is initially scavenged at high temperatures by the RO and B.sub.2 O.sub.3 precursors, converting the same to a B.sub.2 O.sub.
    Type: Grant
    Filed: December 6, 1985
    Date of Patent: January 9, 1990
    Assignee: General Atomics
    Inventor: Paul E. Gray
  • Patent number: 4883703
    Abstract: In a process for thermally spraying molten metal onto an uncured resin, to prevent some of the sprayed metal particles from being engulfed in the still wet or uncured resin layer, the resin layer is filled with micron sized beads, filler and/or spheres. The spheres or beads or other filling of the resin prevents the impacting metal particles from being engulfed but still allows the metal particles to imbed in the uncured resin surface to achieve a strong mechanical bond when the resin cures.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: November 28, 1989
    Inventors: Louis M. Riccio, Alexander A. Bosna
  • Patent number: 4882215
    Abstract: A precoated metal plate for heavy forming use comprising a metal plate having on its surface a coating which is prepared by applying an aqueous composition consisting essentially of a binder component (A) and hard inorganic microparticles (B) and which is 0.05 to 5 .mu. thickness, the binder component (A) being an aqueous resin or a combination of aqueous resin and a water-soluble chromium compound containing 30 to 90% by weight of hexavalent chromium, the microparticles having Mohs' hardness of 3 to 9 and an average grain diameter of 0.1 to 20 .mu., and the coating being characterized by having a percentage of horizontal sectional area of the inorganic microparticles protruded beyond the film surface of said binder component at the film surface of 5% or more. The coated metal plate is specifically useful for heavy forming purpose.
    Type: Grant
    Filed: April 4, 1988
    Date of Patent: November 21, 1989
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Akira Ushio, Tomotsu Sobata
  • Patent number: 4868069
    Abstract: A coated substrate in which the coating includes abrasion-resistant particles protruding from the hardened surface of a metal matrix and is bonded to the substrate.
    Type: Grant
    Filed: August 11, 1988
    Date of Patent: September 19, 1989
    Assignee: The Dexter Corporation
    Inventor: David S. Darrow
  • Patent number: 4849265
    Abstract: A sheet coated with beads and comprising a flexible sheet substrate and a transparent bead layer formed on the surface of the substrate integrally therewith, with an adhesive layer provided therebetween. Another bead-coated sheet comprises an elastic flexible sheet substrate, a hard transparent bead layer formed over the surface of the substrate with an adhesive layer interposed therebetween, a transparent cover coat layer integrally formed on the bead layer and a transparent top coat layer integrally formed on the cover coat layer and having lower hardness than the beads. The coat layers permit the bead layer to retain surface projections provided by the beads.
    Type: Grant
    Filed: May 13, 1988
    Date of Patent: July 18, 1989
    Assignee: The Ohtsu Tire & Rubber Co., Ltd.
    Inventors: Minoru Ueda, Hiroshi Kimoto
  • Patent number: 4837085
    Abstract: A waterproofing strip used to seal interfacing surfaces of building components has a single layer of a non-degradable, water impermeable polymeric membrane that has layers of particles of non-hydrated sodium montmorillonite (sodium bentonite) adhering to walls of the opposite surfaces thereof. The strip is placed between or across interfacing surfaces of two building components to prevent water migration.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: June 6, 1989
    Inventor: Bryan M. McGroarty
  • Patent number: 4798643
    Abstract: A method of providing uniform application of pressure during thermocompression bonding of semiconductor elements onto a bonding surface of a semiconductor package is described. A member having a plane surface is interposed between the semiconductor element and the bonding tool to provide a uniform force distribution to the plane surface of the member and hence to the semiconductor elements. In a preferred embodiment, a plano-convex vitreous member is placed upon the top of the semiconductor element with the plane surface thereof contacting the semiconductor element. A bonding tool is brought into contact with the convex surface portion of the hemisphere transmitting a uniform force to the plane surface, Thus, uniform force is brought to bear upon the semiconductor element providing a uniform thermocompression bond between the semiconductor element and the bonding surface.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: January 17, 1989
    Assignee: Raytheon Company
    Inventor: Dino E. Argentini
  • Patent number: 4786544
    Abstract: A magnetic recording medium comprising a substrate, a magnetic layer formed on at least one surface of the substrate and a lubricant layer comprising at least two components substantially incompatible with each other, coated on the surface of the magnetic layer, forming a like structure, which has improved abrasion resistance, durability and running stability.
    Type: Grant
    Filed: April 8, 1987
    Date of Patent: November 22, 1988
    Assignee: Hitachi Maxell, Ltd.
    Inventor: Osamu Saito
  • Patent number: 4781963
    Abstract: Disclosed herein is a magnetic recording medium comprising a biaxially oriented polyester film having an extremely low surface roughness and containing fine particles and specific higher aliphatic carboxylic acids and/or derivatives thereof, and a magnetic layer formed on one side of the polyester film.The magnetic recording medium exhibits a stable travelling nature even when it is not provided with a back coat layer, and is usable as a high-quality and high-density magnetic recording medium.
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: November 1, 1988
    Assignee: Diafoil Company, Limited
    Inventors: Shigeo Utsumi, Shigeyuki Watanabe
  • Patent number: 4767657
    Abstract: There is disclosed a polyester film suitable for use in magnetic tapes having the characteristics represented by the following equations: ##EQU1## wherein N.sub.1 is the number of peaks of surface projections per millimeter;h is the average height in .mu.m of the surface projections;.theta. is the average steepness in degree of the surface projections;H.sup.2 is the mean square height in .mu.m.sup.2 of the surface projections; andn is the average refractive index.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: August 30, 1988
    Assignee: Diafoil Company, Limited
    Inventors: Seiji Sakamoto, Yoshio Meguro
  • Patent number: 4721653
    Abstract: A vacuum brazing sheet for use in drawn-cup type heat exchanger made of aluminum with the degree of closure from 0.2 to 4.0 cm.sup.2 /l, wherein a brazing material containing:Si 11-14 wt. %Mg 1.0-2.0 wt. % andthe balance of Al is clad on one or both surfaces of aluminum or aluminum alloy material.The brazing performance can be improved and stabilized, and higher yield can be obtained.
    Type: Grant
    Filed: September 25, 1986
    Date of Patent: January 26, 1988
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Hidetaka Oda, Akio Fukada, Kikuo Toyose, Jun Takigawa, Masao Takemoto
  • Patent number: 4713280
    Abstract: Transparent sheet capable of receiving oil-based inks from impact ink transfer printers that use fabric ribbons.The sheet of this invention is non-tacky, and comprises a backing bearing on at least one major surface thereof an ink-receptive layer, capable of receiving oil-based ink from a fabric ribbon, said layer comprising a polymeric material having a Hansen dispersion parameter from about 10 to about 20 J.sup.1/2 /cm.sup.3/2, a Hansen dipole parameter of less than about 6 J.sup.1/2 /cm.sup.3/2, and a Hansen hydrogen bonding parameter from about 8 to about 20 J.sup.1/2 /cm.sup.3/2. The ink-receptive layer can also contain particulate material.
    Type: Grant
    Filed: July 29, 1986
    Date of Patent: December 15, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Donald J. Williams
  • Patent number: 4693050
    Abstract: A bottle plate for receiving a bottle in a bottle-processing machine has a metal plate to which a flexible covering is adhered in order to satisfy high requirements regarding frictional contact between the covering and bottom of the bottle, granules of silicon carbide or corundum are embedded in the covering. These granules project into fissures in the microscopically uneven bottom of the bottle hook therein and thus fix the bottle to the disk against slip. The covering is flexible to promote this contact.
    Type: Grant
    Filed: April 18, 1986
    Date of Patent: September 15, 1987
    Assignee: Jagemberg AG
    Inventor: Egon Hoveler
  • Patent number: 4693923
    Abstract: A waterproofing sheet used to waterproof structures above and below grade has a single layer of non-degradable, water impermeable polymeric membrane that has layers of particles of non-hydrated sodium montmorillonite (sodium bentonite) adhering to the membrane in a uniform layered thickness. The layers of particles of sodium montmorillonite spaced from the membrane adhere to each other, with a coating material (adhesive) that is designed to provide the necessary performance for waterproofing under a high water head (hydrostatic pressure). The material is in sectioned sheet or roll form and can be easily applied on the job.
    Type: Grant
    Filed: November 22, 1985
    Date of Patent: September 15, 1987
    Inventors: Bryan M. McGroarty, Patrick J. McGroarty
  • Patent number: 4689259
    Abstract: A decorative floor covering in tile form has a design printed on its upper surface. Particles are positioned on the upper surface of the tile with at least some of the particles being placed on the tile surface in register with the design printed on the tile surface. A cured wear layer overlies both the particle and the plastic base, whereby the wear layer surface in the areas containing particles and in the areas not containing particles will be of different gloss characteristics.The process requires the sprinkling of particles over an adhesive coated surface to retain the particles in registration with a printed design on the tile surface.
    Type: Grant
    Filed: August 23, 1984
    Date of Patent: August 25, 1987
    Assignee: Armstrong World Industries, Inc.
    Inventors: Jesse D. Miller, Jr., James A. Tshudy, Ralph E. Unruh
  • Patent number: 4659607
    Abstract: A retouchable mat film comprising a hydrophobic support which has formed thereon a mat layer containing silicon dioxide as a matting agent is disclosed. The mat layer further includes a mixture of poly(methyl methacrylate) or a copolymer containing at least 80 wt % of methyl methacrylate and a hydrophilic polymer as a binder. This mat film withstands several retouching operations in ink.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: April 21, 1987
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinzi Kataoka, Yukio Shinagawa, Shinji Sakaguchi
  • Patent number: 4645703
    Abstract: A magnetic recording medium comprises steep mountain-shaped protrusions having heights ranging 50-600 .ANG. and distributed at a rate of 1.times.50.sup.5 -1.times.10.sup.8 protrusions/mm.sup.2 on a surface of ferromagnetic metal layer and further thereon a lubricant layer; the magnetic recording medium is suitable for VTR tape which has a satisfactory durability for repeated use and eliminates head clogging and squealing.
    Type: Grant
    Filed: October 10, 1985
    Date of Patent: February 24, 1987
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takashi Suzuki, Kunio Hibino, Mikio Murai, Shigeki Kawase, Koichi Shinohara, Norimoto Nouchi
  • Patent number: 4636409
    Abstract: An ink-jet recording medium is characterized in that the recording surface thereof is formed of a mixture of at least a filler and parts of a fibrous base material and that parts of the fiber composing the fibrous base material are laid very closely to the recording surface.
    Type: Grant
    Filed: September 13, 1984
    Date of Patent: January 13, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryuichi Arai, Shigeo Toganoh
  • Patent number: 4606963
    Abstract: A synthetic clay court composition is provided having a first aggregate-containing elastomeric lamina applied to a substrate. Prior to the elastomer curing aggregate is broadcast over the elastomer in an amount sufficient to form a second free-flowing lamina.
    Type: Grant
    Filed: February 27, 1985
    Date of Patent: August 19, 1986
    Inventor: Dominic L. Farrell
  • Patent number: 4584209
    Abstract: A method of manufacturing a floor covering which includes the steps of:(a) mixing grits of at least one abrasive substance, and of a dimension not exceeding 0.7 mm, with a thermoplastic paste;(b) applying at least one coating of the mixture to a sheet of base material ahead of a doctor knife;(c) passing the coated sheet under the doctor knife, whereby the coating is levelled;(d) then sprinkling a mixture of silicon carbide grits and colored quartz aggregate particles, each of a dimension exceeding 0.7 mm, onto the surface of said coating and(e) curing the coated sheet;(f) the grits applied ahead of the doctor knife being of a dimension which does not exceed half the thickness of the coating as levelled by the doctor knife. Preferably, the coloring of the floor covering is mainly derived from the color of the sprinkled particles of quartz aggregate, and preferably the particles of colored quartz have a dimension not exceeding 1.8 mm. The invention also provides a floor covering when so produced.
    Type: Grant
    Filed: January 4, 1985
    Date of Patent: April 22, 1986
    Assignee: Welwyn Plastics (1955) Limited
    Inventor: Alan M. Harrison
  • Patent number: 4568600
    Abstract: A thermoplastic resin base film for a magnetic recording medium including a thermoplastic resin film and a discontinuous film adhering closely to at least one surface of the thermoplastic resin film. The discontinuous film has a thickness of not larger than 500 angstroms and is composed of a polymer blend containing fine particles. The polymer blend comprises a water-soluble polyester copolymer and a water-soluble polymer having at least one hydroxyl group in the recurring unit thereof. Fine protrusions are formed on the discontinuous film due to the presence of the fine particles therein. A magnetic recording medium using the base film is suitable for high density magnetic recording and has extremely excellent durability to repeated use.
    Type: Grant
    Filed: February 20, 1985
    Date of Patent: February 4, 1986
    Assignee: Toray Industries, Inc.
    Inventors: Masaaki Ono, Masahiko Motegi, Kazuo Okabe
  • Patent number: 4568599
    Abstract: A laminated film for a super-high density magnetic recording medium, which comprises (A) a layer composed of a thermoplastic resin and (B) a layer of a thermoplastic resin containing fine particles therein. In this laminated film, the outer surface of the layer (A) has a surface roughness of less than 0.005.mu. as expressed as the Ra value, and the outer surface of the layer (B) has a surface roughness of 0.005 to 0.040.mu. as expressed as the Ra value. The outer surface of the layer (B) has either (i) a plurality of depressions and a plurality of protrusions, which are formed thereon in a configuration such that at least one protrusion exists within each depression or at least one protrusion exists in the area where two or more depressions are contiguous to each other, or (ii) protrusions on a flat plane and a covering layer (C) composed of a lubricant, which is formed on the surface of the layer (B). This covering layer (C) may be formed on the surface having the above-mentioned depressions and protrusions.
    Type: Grant
    Filed: March 9, 1983
    Date of Patent: February 4, 1986
    Assignee: Toray Industries, Inc.
    Inventors: Masaaki Ono, Yasuki Miura, Masahiko Motegi, Kazuo Okabe
  • Patent number: RE32152
    Abstract: An abrasion-resistant laminate is prepared by providing an ultra thin coating of mineral particles and micro crystalline cellulose on the surface of conventional printed paper, followed by impregnating the paper with a conventional laminating resin, and then using the print paper so obtained in a laminating process without the necessity of using an overlay sheet.
    Type: Grant
    Filed: November 4, 1983
    Date of Patent: May 20, 1986
    Assignee: Nevamar Corporation
    Inventors: Herbert I. Scher, Israel S. Ungar