Patents Examined by Thomas J. Herbert, Jr.
  • Patent number: 5352526
    Abstract: A composite article and process forming a soft metallic layer, underneath a hardface coating, on a metallic substrate, using cloth-like flexible preforms. The softer layer formed underneath the hardfacing should be one having a hardness below 35 HRC, preferably 30 HRC, and should not experience any significant physical changes, e.g., increase in hardness, upon heat treatment.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: October 4, 1994
    Assignee: Pullman Company
    Inventors: Mukesh M. Solanki, Christopher B. Harley
  • Patent number: 5288551
    Abstract: A laminated piezoelectric device is formed by sandwiching a relatively rigid central electrode layer with a pair of piezoelectric polymer films and then with a pair of outer electrode layers which are less rigid than the central electrode layer. The laminated piezoelectric device, as a whole, has a good flexibility and shows good piezoelectric characteristics represented by a hydrostatic piezoelectric constant d.sub.h and a symmetrical vibration characteristic. The outer electrode layers may preferably be constituted as a sprayed coating electrode which shows good solderability and peel strength.
    Type: Grant
    Filed: August 6, 1992
    Date of Patent: February 22, 1994
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takashi Sato, Kazuyuki Suzuki, Kenichi Nakamura
  • Patent number: 5286567
    Abstract: A pellicle for dust-proofing of a photolithographic mask used for patterning in the manufacturing process of semiconductor devices. The drawback due to dust deposition can be greatly decreased in the use of a pellicle made from a fluorocarbon resin which is a copolymer of tetrafluoroethylene and another fluorocarbon monomer capable of introducing a cyclic perfluoroether group into the molecule when the pellicle film is rendered antistatically hydrophilic, for example, by a plasma treatment.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: February 15, 1994
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yoshihiro Kubota, Meguru Kashida, Yoshihiko Nagata, Hitoshi Noguchi
  • Patent number: 5286550
    Abstract: A surface modification process which provides a means of rapidly heating a thin layer of a polymer surface or a thin coating of material on a coated substrate and various surfaces produced by such a process.
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: February 15, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Edward C. Yu, Susan N. Bohlke, Andrew J. Ouderkirk, Douglas S. Dunn
  • Patent number: 5284711
    Abstract: A method for forming a fluororesin film on a metallic substrate is described, which method comprising forming a chromium oxide film on at least one side of a metallic substrate and then forming a fluororesin film on the chromium oxide film. By this, good adhesion of the fluororesin film to the substrate is ensured. Further, when the fluororesin film is degraded, the film is readily removed without damaging the substrate and a fresh fluororesin film can be again formed on the substrate through a fresh chromium oxide film so that the substrate keeps it original dimensional precision and may be used semi-permanently.
    Type: Grant
    Filed: July 17, 1992
    Date of Patent: February 8, 1994
    Assignee: Bridgestone Corporation
    Inventor: Keisuke Ihara
  • Patent number: 5283126
    Abstract: Electro-deposition-coated steel is top coated with a flexible coating formed of a polyester having --OH functionality, a polyacrylate having --OH functionality and melamine-formaldehyde resin to provide substantially a stoichiometric amount of reactive sites relative to the total amount of --OH functionality of the polyester and the polyacrylate. The flexible coatings exhibit superior chip and scratch resistance relative to rigid coatings of the type conventionally used in the automotive industry.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: February 1, 1994
    Assignee: Bee Chemical
    Inventors: Willaam A. Rasmussen, Michael Jackson
  • Patent number: 5279900
    Abstract: A bonded structure 1 including an aluminum alloy plate 3 and a rubber 7 of vibration proof rubber adhering to each other with an adhesive wherein the aluminum alloy plate 3 includes aluminum alloy containing no more than 12% by weight of silicon and no more than 2.2% by weight of copper and the application of such aluminum alloy to the bonded structure 1 decreases the total weight of the structure 1 and improves both corrosion resistance and adhesiveness under corrosive conditions wherein the bonded structure is favorably applied to damper pulleys and shock-absorbing body mounts of vehicles.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: January 18, 1994
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Katsumasa Takeuchi, Hiroshi Yokoi, Hideyuki Imai
  • Patent number: 5279899
    Abstract: Sulfonated polyamides, e.g. aliphatic polyamides such nylon-6 and nylon-6,6, partially aromatic polyamides and polyaramides such as poly(phenyldiamidoterephthalate), provided with sulfonate radicals chemically bonded as amine pendant groups to nitrogen atoms in the polymer backbone are useful for stainblocking polyamide textile articles and as precursors for providing electrolessly-deposited metal-coatings on palladium sulfonate modified surfaces. Nickel-coated polyaramide textile material have surprisingly exceptional flame resistance.
    Type: Grant
    Filed: March 17, 1992
    Date of Patent: January 18, 1994
    Assignee: Monsanto Company
    Inventor: Jawed Asrar
  • Patent number: 5277960
    Abstract: The first invention provides a substrate for a magnetic recording medium, which is prepared by forming a macro-concavo-convex pattern for improving CSS properties and a micro-concavo-convex pattern for improving magnetic properties on the surface, thereby preventing the degradation of the CSS properties brought by the enhancement in friction coefficient and the increase in the area of a protective layer of the medium in contact with a magnetic head, caused by the wearing of the protective layer of the medium.The second invention provides a process of producing a substrate for a magnetic recording medium, which forms the above macro-concavo-convex pattern and micro-concavo-convex pattern in a uniform distribution at the same time.
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: January 11, 1994
    Inventors: Noboru Tsuya, Toshiro Takahashi
  • Patent number: 5272014
    Abstract: A multi-component, metal-containing, wear-resistant coating which is not homogeneous. The coating has a difference of a metallic element concentration of at least about 2 atom percent between the edges of the coating surface and the coating surface remote from the edge. Non-homogeneous coatings of the invention are surprisingly wear-resistant compared to homogeneous coatings.The invention also relates to a method of applying the coatings of the invention by a PVC-process or a plasma-CVD-process wherein the electrical potential difference between the substrate and the ionized coating material is selected to enhance the inhomogeneity of the coating.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: December 21, 1993
    Assignee: Dr.-Ing. Toni Leyendecker
    Inventors: Toni Leyendecker, Stefan Esser, Oliver Lemmer
  • Patent number: 5270118
    Abstract: Polymeric composite materials having a decreasing concentration gradient of polymer matrix from the material's surface to the material's interior and a process for making such materials, whereby polymer matrix is extracted from the interior of the material in such a manner that the matrix concentration at the material's surface increases.
    Type: Grant
    Filed: October 15, 1992
    Date of Patent: December 14, 1993
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: William M. Sanford, William C. Uy
  • Patent number: 5266387
    Abstract: A wrapping film comprising at least an outer layer, an interlayer, and an inner layer in this order, (a) the wrapping film having a shear peel strength of 0.20 kg/cm.sup.2 or more and a 180.degree. peel strength of 8.0 g/50 mm or less, (b) the outer layer and the inner layer each being a polyolefin resin composition layer, (c) the interlayer being an aliphatic polyamide resin layer, (d) the wrapping film exhibiting a tensile elongation at break of 200% or less in the direction of film withdrawal and a tensile elongation at break of 80% or more in the direction perpendicular to the direction of film withdrawal, (e) the ratio of the tensile elongation at break in the direction of film withdrawal to that in the direction perpendicular to the direction of film withdrawal being in the range of 0.7 or less, and (f) the total thickness of the wrapping film being in the range of 40 .mu.m or less, and the thickness of the interlayer is in the range of 10 to 90% of the total thickness of the wrapping film.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: November 30, 1993
    Assignee: Mitsbushi Kasei Corporation
    Inventors: Toshio Fujii, Toyomitsu Kondo
  • Patent number: 5264290
    Abstract: A highly improved elastomeric composition, process, and articles made thef, wherein the novel composition is characterized by greatly increased wear longevity, thermomechanical stability, highly improved tear and tensile strength at high temperature usage, in addition to high resistance to burning in open flame, as well as high resistance to cutting, chipping, cracking and crack propagation particularly in product use for tank track pads and other related track system elastomeric component products; wherein the improved composition is a unique combination of its respective polymer, filler, curing and antidegradant system, in which the polymer system either consists of about 100 parts by weight of highly saturated nitrile polymer or of various novel blends of the highly saturated usually in majority amounts together with minority amounts of carboxylated nitrile, with or without additional minority or near equal parts of nitrile rubber; and wherein the curing system may include various blends of from between ab
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: November 23, 1993
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Paul Touchet, Gumersindo Rodriguez, Paul E. Gatza, D. Patrick Butler, Dawn M. Crawford, Alan R. Teets, Henry O. Feuer, David P. Flanagan
  • Patent number: 5262227
    Abstract: An aromatic polyimide film directly laminated with a metal foil and an aromatic polyimide film directly laminated on both sides with a metal foil wherein the polyimide film (substrate) comprises an aromatic polyimide layer-A of 6-200 .mu.m thick whose polyimide is derived from a biphenyltetracarboxylic acid or its derivative and a phenylenediamine and an aromatic polyimide layer-B of 0.2-15 .mu.m thick whose polyimide is derived from an aromatic tetracarboxylic acid or its derivative and an aromatic diamine having plural benzene rings, and the polyimide layer-A has a thickness of not less than 55% of the total thickness of the aromatic polyimide substrate film, the polyimide layer-B is fixed to the polyimide layer-A under the condition that the layer-B cannot be peeled from the layer-A along the interface between these layers-A and -B and the metal foil is directly fixed on the surface of the polyimide layer-B via no adhesive.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: November 16, 1993
    Assignee: Ube Industries, Ltd.
    Inventors: Seiichirou Takabayashi, Katsuo Imatani, Kazuaki Mii, Shuji Watakabe
  • Patent number: 5262241
    Abstract: Thin impermeable, corrosion-resistant, durable, dry lubricant coatings are provided as well as coated products and methods for the production thereof. The coatings comprise solutions of sulfur-containing metallic compounds and fluorocarbon polymers dissolved in mineral oil solvents and are applied to surfaces of substrates such as metallic surfaces.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: November 16, 1993
    Assignee: Eeonyx Corporation
    Inventor: Gary E. Huggins
  • Patent number: 5260102
    Abstract: A shape-holding composite pressure sensitive plate comprising a substrate of organic high-polymer, a metal sheet attached to one surface of the substrate and adapted to be bent by hand and to hold, in free form, its shape, a pressure sensitive adhesive applied to the other surface of the substrate, and a release liner peelably attached to the other surface of the substrate via the pressure sensitive adhesive.
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: November 9, 1993
    Assignee: Cemedine Co., Ltd.
    Inventors: Naomi Okamura, Akio Nimura, Shozo Goda, Toshirou Kaneko, Takao Hino
  • Patent number: 5260120
    Abstract: A mar resistant, weldable zinc-coated metal substrate capable of sustaining the life of a copper-tipped electrode used in welding the substrate through a minimum of 2000 welds is achieved by applying a weldable primer coating composition to the metal, heating the primer composition to provide the desired dry coating, applying a protective coating composition over the primer coating in an amount sufficient to provide from about 50 to about 400 mg/ft.sup.2 of a dry film, and heating the protective coating composition to produce the dry film. Without the resin-based protective coating, the weldable primer is easily marred. The resin-based protective coating, which is from about 0.06 mil to about 0.13 mil thick, improves the mar resistance of the primer and enhances the corrosion resistance of the zinc-coated steel without interfering with the weldability of the primer. The primer contains from about 30 to about 60% of ferrophosphorus and from 0 to about 30% by weight zinc powder.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: November 9, 1993
    Assignee: Morton International, Inc.
    Inventors: Richard T. Moyle, Karl P. Anderson
  • Patent number: 5258232
    Abstract: Compositions, composite articles and process for producing same are provided from a reinforced polyvinyl halide composition (A) comprising a high molecular weight polyvinyl halide resin, a plasticizer, and a reinforcement material, such as glass fibers, in combination with (B) a composition having adhesion to (A). Preferably (B) comprises a thermoplastic compound selected from the group consisting of PVC, plasticized PVC, styrene derivatives, urethane derivatives, acrylic derivatives, acrylonitrile derivatives, polyester derivatives, and mixtures thereof, with the most preferred composition being an unreinforced, plasticized polyvinyl halide composition. The composite article exhibits good strength, low sag at high use temperatures, and lowered coefficient of thermal expansion for use in contact with metal or polymeric substrates such as panels.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: November 2, 1993
    Assignee: The Geon Company
    Inventors: James W. Summers, Jerome J. Blayne, Bryan M. Kazmer
  • Patent number: 5258213
    Abstract: Multilayer thermoplastic composites comprising (a) a layer comprising a polyamide molding composition, (b) a layer comprising a polyester molding composition, and (c) an adhesion promoter intermediate layer (a) and layer (c) find use as structural components in the electrical engineering, machine production and automotive industries, and for foodstuff packaging films or multilayer pipes.
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: November 2, 1993
    Assignee: Huels Aktiengesellschaft
    Inventors: Joachim Mugge, Hubertus Ohm, Christian Gerth
  • Patent number: 5256472
    Abstract: A fluorine resin type weather-resistant film of multi-layer structure comprising a front surface layer made of a composition (A) comprising, as main components, from 50 to 95 parts by weight of a vinylidene fluoride resin and from 5 to 50 parts by weight of a methacrylate resin and a rear surface layer made of a composition (B) comprising, as main components, from 50 to 95 parts by weight of a methacrylate resin, from 5 to 50 parts by weight of a vinylidene fluoride resin and from 0.1 to 15 parts by weight of an ultraviolet absorber, wherein the overall thickness of the film of multi-layer structure is from 10 to 150 .mu.m, and the thickness of the front surface layer of the film is from 2 to 50 .mu.m.
    Type: Grant
    Filed: April 24, 1992
    Date of Patent: October 26, 1993
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshihisa Moriya, Mikio Shimizu, Masami Inoue