Patents Examined by William J. Van Balen
  • Patent number: 5338601
    Abstract: This invention relates to the use of a barrier film, being a thermoplastic linear polyolefin resin, to protect a styrenic resin sheet which constitutes the inner liner wall of an insulative cabinet wall of, for example, a refrigeration appliance unit from attack by the halogen-containing blowing agents present in the insulative polyurethane foam found within the cabinet wall. Preferred thermoplastic linear polyolefin resins are linear low density polyethylene.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: August 16, 1994
    Assignee: The Dow Chemical Company
    Inventors: Jan Brands, Henri J. M. Grunbauer, Kees-Jeen van Duin
  • Patent number: 5277941
    Abstract: A unique system to insulate and retain the cold temperature of products, liquids, or materials of any type or nature. In the preferred embodiment, the system comprises a series of layers of material as follows: (1) a hard, durable plastic layer of polyvinyl chloride or similar material; (2) a layer of retardant aluminum; (3) a layer of styrofoam; (4) a layer of neoprene; (5) a cavity which is filled with dry ice through an input valve at the top of the system and which is purged through an escape or purge valve at the bottom of the system; the layers completely surround and envelope the cavity such that one closed system is created.The system could be made in any of many shapes and sizes to accommodate various industries, for example, the system constructed in the outer shape of a beer keg could constitute a jacket, which would be removable with hinges and buckles to keep kegs cold for up to 96 hours without refrigeration or ice.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: January 11, 1994
    Inventor: David A. Marshall
  • Patent number: 5234739
    Abstract: A polytetrafluoroethylene porous film, which is prepared by stretching a semisintered polytetrafluoroethylene material and heating the stretched material at a temperature higher than the melting point of sintered polytetrafluoroethylene, has an area ratio of fibrils to nodes of from 99:1 to 75:25, an average fibril diameter of from 0.05 to 0.2 .mu.m, a largest node area of not larger than 2 .mu.m.sup.2 and an average pore size of from 0.2 to 0.5 .mu.m and achieves low pressure loss.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: August 10, 1993
    Assignee: Daikin Industries Ltd.
    Inventors: Shinji Tanaru, Osamu Tanaka, Hirofumi Nishibayashi, Osamu Inoue, Katsutoshi Yamamoto, Toshio Kusumi
  • Patent number: 5233924
    Abstract: Pencil writable and printable synthetic paper comprising a finely porous polyolefin film layer having an opacity of at least 80% obtained by stretching a polyolefin film containing from 8 to 65% by weight of an inorganic fine powder having on one or both sides thereof a stretched ethylene-vinyl alcohol copolymer film layer, at least one of the stretched ethylene-vinyl alcohol copolymer film layers having a coat layer thereon. When printed, the stretched ethylene-vinyl alcohol copolymer film layer prevents hydrocarbon solvents present in printing inks from penetrating into the polyolefin film layer to eliminate local surface unevenness and curling.
    Type: Grant
    Filed: February 26, 1992
    Date of Patent: August 10, 1993
    Assignee: Oji Yuka Goseishi Co., Ltd.
    Inventors: Yozo Ohba, Akira Akimoto, Tokumi Chiba
  • Patent number: 5227185
    Abstract: A laminate comprising a polyolefin film having a hardened coating adhered to one surface thereof. The coating is abrasion resistant and is the photopolymerization reaction product of starting materials comprising hydantoin hexacrylate and a fluorinated surfactant. The laminate finds particularly useful application as a component of energy control window films. An abrasion resistant coating composition is also disclosed.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: July 13, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Norma E. Gobran
  • Patent number: 5227009
    Abstract: A masking sheet comprising a corrosion-resistant film and, formed thereon, a layer of an adhesive comprising at least one of a chloroprene rubber, a nitrile rubber, and a styrene-butadiene rubber.
    Type: Grant
    Filed: March 10, 1992
    Date of Patent: July 13, 1993
    Assignees: Nitto Denko Corporation, Shin Meiwa Industry
    Inventors: Makoto Sunakawa, Chikara Kohbayashi, Rokuo Ono
  • Patent number: 5219625
    Abstract: A thermochromic laminate member comprises a thin transparent iridescent film laminated on a thermochromic layer 2, and exhibits rainbow-color pattern. The thermochromic layer shows reversible change between a first colored state and a second colored state by a temperature change.
    Type: Grant
    Filed: July 6, 1992
    Date of Patent: June 15, 1993
    Assignee: The Pilot Ink Co., Ltd.
    Inventors: Nobuaki Matsunami, Hiroshi Inagaki
  • Patent number: 5219665
    Abstract: A multiple layer article of a thermoformable structural polymeric layer which is susceptible to damage upon exposure to hydrohalocarbon blowing agents and a polymeric layer which is a barrier to such hydrohalocarbon blowing agents provides a useful refrigerator liner. Related structures are useful for preventing the migration of hydrohalocarbons.
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: June 15, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John C. Chen, Anita N. DiAndreth
  • Patent number: 5217787
    Abstract: Material multi-faceted as to its advantageous properties and highly versatile in use and application comprises a very light, relatively thin, sheet-like structure, a layered composite of cellular and non-woven materials. Said structure is formed of layered sheets, bonded to one another, including a thin sheet of a cellular material the face(s) of which have a very thin sheet-like overlay of a non-woven permeable reinforcing material such as, preferably, rayon or nylon. The body of the cellular sheet material, preferably of plastic such as polyurethane, polyester or polyether, is characterized by innumerable extremely small, relatively minute pockets having extremely thin elastic wall portions through which fluid may readily pass to said pockets to store therein in amounts the volume of which may be a significant multiple of that originally defined by said wall portions.
    Type: Grant
    Filed: May 9, 1991
    Date of Patent: June 8, 1993
    Assignee: The Thomas Monahan Co.
    Inventor: Patrick H. Monahan
  • Patent number: 5217781
    Abstract: Computer mouse pad or mat, composed of at least the following layers:A) a non-static polyvinyl chloride upper layer having a thickness in the range of from 0.20 to 0.80 mm, the surface of said layer having a soft, suede-like structure;B) a crease-resistant intermediate plastic layer that keeps its shape, has a thickness in the range of from 0.75 to 1.5 mm and after bending returns fast to the plane form;C) a bottom layer functioning as an anti-slip layer in contact with a ground in the form a working-table-top, desk-top and the like and consisting of a foamed thermoplastic synthetic material, said bottom layer having a thickness in the range of from 0.5 to 2 mm.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: June 8, 1993
    Inventor: Jurjen Kuipers
  • Patent number: 5215796
    Abstract: A shaped multilayer polymeric article, and a method for manufacturing said article, comprising a top layer comprised of thermoset polyester resin, a supporting layer underneath said top layer comprised of high density polyurethane foam, said supporting layer having a density and thickness at least effective to provide support to said top layer; an intermediate layer underneath at least a portion of said supporting layer comprised of low density polyurethane foam; and a bottom layer underneath at least said intermediate layer comprised of high density polyurethane foam.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: June 1, 1993
    Assignee: Aqua Glass Corporation
    Inventors: Brett K. Mueller, Larry W. Higgins
  • Patent number: 5215815
    Abstract: The hospital bed sheet and pillow-case material of the invention is a 2-layer fabric, incorporating a first layer of one of a fire retarding poly-cotton woven or polyester knit fabric, and a second layer of a fire retarding polyvinyl chloride film. A water-based fire retarding adhesive is included, joined between the first and second layers, for laminating them together.
    Type: Grant
    Filed: October 5, 1992
    Date of Patent: June 1, 1993
    Assignee: Fabrite Laminating Corp.
    Inventor: Harry Levy
  • Patent number: 5215805
    Abstract: Roofing systems are herein disclosed which lend themselves to simplified installation techniques and provide enhanced energy conservation over conventional roofing systems of comparable appearance. The system of this invention is based, in substantial part, upon the use of a large (typically 4'.times.8') panel of cellular structural foam as a replacement for ceramic and/or cast concrete roofing tiles ("Barrel" and "Bermuda" style tiles). In the preferred embodiments of this invention, a closed cell structural formed panel is molded or cut to simulate an array of roofing tiles. The simulated foam tile panel is further provided with a refractory (fireproofing) finish, such as stucco, or its equivalent. A finish coating is, thereafter, applied to the refractory coating to enhance water repellency and, thus, serve to further weatherproof the roofing panel. The finishing coating can be applied prior to or subsequent to installation of the foam tile panels.
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: June 1, 1993
    Assignee: Royal "T" Holding, Inc.
    Inventor: Alfred Pavia, Jr.
  • Patent number: 5213866
    Abstract: Carpet and textile coating compositions are formulated to include fiber or flock pieces so as to improve the tuft pull strength and dimensional stability of the carpet or textile. The coating compositions comprise 10 to 70%, by weight, of a latex binder and 30 to 90%, by weight, of at least one filler, wherein the filler comprises about 0.001 to 100%, by weight, of fiber or flock pieces. Any natural or synthetic fiber may be used in the coating compositions of this invention.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: May 25, 1993
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Ronald L. Swope, Cheri L. McConnell, Larry S. Fulton
  • Patent number: 5211997
    Abstract: A structure exhibiting enhanced barrier properties is disclosed and which comprises:a substrate,a metallic coating formed by vaporization and condensation upon said substrate, said metallic coating having a thickness of about 400A, anda plurality of sets of embossed patterns upon said coating, said plurality of sets of embossed patterns each having a line density between 100 and 50,000 lines per square centimeter, and method of making the structure.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: May 18, 1993
    Inventors: Kirit Patel, John R. Pennace
  • Patent number: 5209967
    Abstract: An electrically nonconductive composite article comprising a fibrillated polytetrafluoroethylene (PTFE) matrix, electrically conductive particles, and electrically nonconductive, energy expanded polymeric particles, which composite upon application of pressure thereto becomes electrically conductive and allows for the flow of electricity through the article. The articles are thin and can be used as a pressure sensitive pad or an interconnect for an electronic component.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: May 11, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Robin E. Wright, William V. Balsimo
  • Patent number: 5208099
    Abstract: A process for impregnating porous carbon bodies, in particular carbon fiber-reinforced carbon bodies, protects against oxidation by atmospheric oxygen. The open pores present in the carbon body are lined both in the interior and on the surfaces with a low viscosity gel and/or sol, formed from refractory and/or non-combustible inorganic compounds, as antioxidants. The antioxidant applied has a layer thickness of about 1 micrometer and is highly elastic. It adapts very well to the thermal expansions of the carbon body and is resistant to heat up to above C.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: May 4, 1993
    Assignee: Daimler-Benz
    Inventors: Ines Maiwald-Hiller, Karen B. Riedl, Jorg Arndt
  • Patent number: 5206069
    Abstract: A panel type masking member comprising a foamed polystyrene panel made by expandable bead molding wherein said foamed polystyrene panel has traces of opening parts of breathing paths on both sides thereof wherein said trace(s) on at least one side is(are) dent(s), and a mold used for molding of said panel type masking member comprising a fixed molding part and a movable molding part wherein said movable molding part and said fixed molding part have opening parts of breathing paths on their surface(s) thereof and said opening part(s) of breathing path(s) of said movable molding part and/or said fixed molding part rise(s) from said surfaces thereof; are provided in the instant invention.
    Type: Grant
    Filed: June 2, 1992
    Date of Patent: April 27, 1993
    Assignee: Nagoya Oilchemical Co., Ltd.
    Inventors: Seinosuke Horiki, Reiji Makino
  • Patent number: 5206082
    Abstract: Disclosed is a closed-cell, non-crosslinked foam structure of a ratio of minor dimension to major dimension of about 1/8 or less comprising a plurality of coalesced extruded strands or profiles of a foamed polyolefin composition having an average cell size of from 0.02 to 0.5 millimeters. The cross-sectional geometry of the foam structure substantially corresponds to the overall arrangement of the orifices of the die from which the foamed polyolefin composition was extruded. Further disclosed is a process for making the above foam structure comprising extruding a foamable polyolefin composition through the multiorifice die to form the structure.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: April 27, 1993
    Assignee: The Dow Chemical Company
    Inventor: Bruce A. Malone
  • Patent number: 5204154
    Abstract: A flame-resistant, flowable, pressure-compensating composition is provided. The composition can include a flame retardant such as boric oxide, boric acid, borax, bicarbonate of soda, epsom salt or mixtures thereof. The remainder of the composition can include silicone oil, glycerin or a wax/oil material.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: April 20, 1993
    Assignee: Alden Laboratories, Inc.
    Inventors: Terrence M. Drew, Chris A. Hanson, Alden B. Hanson