Patents Examined by Christopher Keehan
  • Patent number: 6699522
    Abstract: An inorganic coating material maintains the properties of high heat resistance and high electrical insulating characteristics of inorganic materials, while enhancing the degree of adhesion with respect to an object to be coated. A water-based suspension with a specific gravity in the range of 1.5 to 2.5 is obtained by using as major raw materials at least two types of metal oxide particles having heat-resistant characteristics at temperatures above 1000° C., distributing diameters of these particles in the range of 0.1 &mgr;m to 30 &mgr;m, adjusting the average value of their particle diameters to 0.2 &mgr;m to 0.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: March 2, 2004
    Inventor: Takeshi Sakakibara
  • Patent number: 6673452
    Abstract: The invention relates to the field of chemistry and to a fiber composite material which is used, for example, in aircraft. The invention provides a fiber composite material in which delamination can be significantly reduced. This is achieved by a fiber composite material with multiple layers, each containing a duromer matrix and reinforcing fibers, inner layers contain fibers featuring a high level of adhesion to the duromer matrix, outer layers contain fibers featuring a low level or no adhesion to duromer matrix. There is also provided a method in which the reinforcing fibers include a coating and the layers are structured in such a way that, on the interior of the fiber composite material, layers are arranged which contain fibers with a high level of adhesion to the duromer matrix and that outer layers which contain fibers with a lower or low level of adhesion, or no adhesion to the duromer matrix are arranged on and/or around these inner layers.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: January 6, 2004
    Assignee: Institut fur Polymerforschung Dresden E.V.
    Inventors: Horst Frenzel, Andrzej Bledzki, Andreas Kessler
  • Patent number: 6645638
    Abstract: A silicone rubber adhesive composition comprising (A) a heat curable organopolysiloxane composition of the addition curing type or peroxide curing type, (B) reinforcing silica fines, (C) an adhesive agent, and (D) a compound having at least one ester group in a molecule is easily moldable within a short time by injection molding, suitable in primerless molding, and bondable with various thermoplastic resins. Integrally molded articles in which the silicone rubber adhesive composition is firmly bonded to the thermoplastic resin are obtainable without a need for modification of the resin.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: November 11, 2003
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hironao Fujiki, Syuuichi Azechi
  • Patent number: 6638625
    Abstract: A nanopositioner made of novel materials is provided. The materials exhibit desirable properties such as low density and low coefficient of thermal expansion (CTE) derived from their ceramic matrices, but show even better (higher) Young's modulus of elasticity and flexural strength than neat ceramics. The materials are also amenable to wire electric discharge machining.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: October 28, 2003
    Assignee: nPoint, Inc.
    Inventor: Norman A. Draeger
  • Patent number: 6635351
    Abstract: It is an object of the invention to provide a clear coating composition, which can give coating films showing good water repellency, in other words a factor giving a care-free and deluxe feeling to car owners, and which are excellent in non-sanding recoatability in recoating dirtied coatings after due repair, as well as a method of forming a coating film and a multilayerd coating film. The invention provides a clear coating composition which comprises (A) 100 parts by mass of the sum of a crosslinkable coating film-forming resin and a crosslinking agent on the solid basis and (B) 0.01 to 2 parts by mass of a ladder silicone copolymer obtainable by copolymerizing (b-1) a (meth)acryloxyalkyl-containing ladder silicone oligomer, (b-2) a crosslinkable functional group-containing ethylenically unsaturated monomer and optionally (b-3) another copolymerizable ethylenically unsaturated monomer.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: October 21, 2003
    Assignees: Nissan Motor Co., Ltd., Nippon Paint Co., Ltd.
    Inventors: Tatsuya Ishihara, Masahiko Yamanaka, Tetsuji Mizuno, Takashi Moriwake, Hisaki Tanabe, Goro Nagao
  • Patent number: 6632523
    Abstract: An adhesive composition that bonds at low temperatures is disclosed. The composition is a solution in an organic solvent of a polyimide, an epoxy resin, and a cyanate. The polyimide can be a polyimidesiloxane, made from a dianhydride, an aromatic diamine that does not contain siloxane, and a siloxane diamine. The adhesive composition can be used to make a single layer tape, a coated tape, or a double-sided trilayer tape. The tape can bond an article, such as a chip, to a substrate, such as a circuit board.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: October 14, 2003
    Assignee: Sumitomo Bakelite Company Limited
    Inventors: Jerrold C. Rosenfeld, Jerrine L. Neff
  • Patent number: 6620512
    Abstract: An underfill material is presented that may be used between an electrical component and a substrate. The underfill material may be a cured epoxy resin composition comprising a liquid or semisolid epoxy resin and a polyfunctional anhydride polymer and/or oligomer curing agent. The use of anhydride polymers and/or oligomers decrease the volatilization of the composition, thereby reducing the porosity of the underfill material. By changing substituents of the anhydride polymer and/or oligomer, the underfill material may be designed to modify viscosity, decrease moisture adsorption, volatilization and modulus, improve mechanical properties, and enhance adhesion.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: September 16, 2003
    Assignee: Intel Corporation
    Inventors: Saikumar Jayaraman, Rahul Manepalli
  • Patent number: 6620511
    Abstract: Aqueous coating material comprising (A) water-dispersible hydroxy-functional binder component containing urethane groups, (B) water-dispersible binder component containing urethane groups and blocked isocyanate groups, (C) water-dispersible amino resin, and optionally (D) water-dispersible hydroxy-functional polyester, the binder component (B) being preparable by (B1) preparing a polyurethane prepolymer containing isocyanate groups from at least one polyol and at least one polyisocyanate, (B2) reacting the polyurethane prepolymer (B1) containing isocyanate groups with a chain extender to give a hydroxyl-containing chain-extended polyurethane prepolymer, (B3) reacting the hydroxyl-containing chain-extended polyurethane prepolymer (B2) with at least one polyisocyanate to give a further polyurethane prepolymer containing isocyanate groups, and (B4) blocking some or all of the isocyanate groups of the chain-extended polyurethane prepolymer (B3) containing isocyanate groups with a blocking agent to give a polyuret
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: September 16, 2003
    Assignee: BASF Coatings AG
    Inventors: Georg Wigger, Ulrike Röckrath, Bärbel Wiatr, Marita Schilling, Ralf Stein
  • Patent number: 6592999
    Abstract: The present invention provides an improved multi-layer composite of two or more polymeric layers at least one of which is formed from a thermosetting composition. The composite includes at least a first polymeric layer formed on a substrate and a second polymeric layer over the first polymeric layer, wherein in the absence of a boron-containing compound, the first and second polymeric layers have poor interlayer adhesion. The improvement resides in the inclusion of at least one boron-containing compound in one or both of the first and second polymeric layers in an amount sufficient to improve the interlayer adhesion between the first and second polymeric layers. Also provided is an improved curable coating composition used to form a multi-layer composite coating of two or more cured coating layers, at least one of which is formed from the thermosetting composition. Related methods and coated substrates are also provided.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: July 15, 2003
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Lawrence G. Anderson, John W. Burgman, Karen A. Morow, Richard J. Sadvary, Shiryn Tyebjee, Dennis A. Simpson, Thomas R. Hockswender
  • Patent number: 6586090
    Abstract: The present invention provides an adhesive tape comprising a substrate and an adhesive layer formed on at least one side of the substrate, wherein the substrate comprises the following Component A, Component B and Component C: Component A: a thermoplastic resin having a carbonyl oxygen atom in the molecular skeleton Component B: a polymer alloy containing an ethylene component and a propylene component Component C: an inorganic metal compound surface-treated with a silane coupling agent but substantially no halogen atom. The adhesive tape and the substrate for the adhesive tape of the present invention are free of generation of dioxin or a toxic gas upon incineration, are superior in flexibility, resistance to thermal deformation, flame resistance and resistance to surface whitening, and show suitable stretchability and mechanical strength.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: July 1, 2003
    Assignee: Nitto Denko Corporation
    Inventors: Yoshio Nakagawa, Shigeki Ishiguro, Masayoshi Natsume, Shinichi Takada, Kooki Ooyama
  • Patent number: 6565979
    Abstract: The use of linear and/or branched polyethylene oxide homopolymers, polypropylene oxide homopolymers and/or polyethylene/polypropylene oxide copolymers with randomly distributed ethylene oxide and propylene oxide units, which may be partly or completely etherified with C1-C4-alkanols, with an average molecular weight of more than 1000 to 8000, for reducing the clear lacquer wetting limits during two-layered lacquering with aqueous base lacquer/clear lacquer and suitable base lacquers.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: May 20, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Werner Bosch, Oliver Kraus Vom Cleff, Marco Taschner
  • Patent number: 6562468
    Abstract: The present invention relates to a method of eliminating and a laminate which eliminates an aesthetically unacceptable hue normally visible at an area of overlap between a light-colored substrate that reflects a certain wavelength of light back to and through a light-colored translucent overlay. Specifically, the method includes applying a dark material to at least one of the light-colored substrate and the light-colored translucent overlay upon an area of overlap of the substrate and overlay, and sandwiching the dark material between the overlay and the substrate at the area of overlap so that certain wavelengths of light normally passing through the overlay into the substrate and reflected by the substrate back to and through the overlay are blocked by the dark material. The light-colored overlay in the area of overlap appears in its true light color to the “naked” eye absent the aesthetically unacceptable hue.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: May 13, 2003
    Assignee: Baron Industries, Cor.
    Inventors: Theodore Allen Wegert, Karen Joan Thompson
  • Patent number: 6558791
    Abstract: A heat-resistant adhesive is provided for use in an adhesive member for the fabrication of a semiconductor package by bonding a semiconductor chip to a lead frame with the adhesive member and sealing at least the semiconductor chip and a bonded part between the semiconductor chip and the lead frame with a sealant. The adhesive has a coming-out length of not more than 2 mm and a water absorption rate of not more than 3 wt. %. Preferably, the adhesive has a glass transition point of at least 200° C.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: May 6, 2003
    Assignee: Hitachi Chemical Company
    Inventors: Hidekazu Matsuura, Yoshihide Iwazaki, Naoto Ohta
  • Patent number: 6555217
    Abstract: A self-supporting and self-adhesive molded article is described having a glass transition temperature of less than 10° C. and containing a binder and an aliphatic or cyoaliphatic nonionic surfactant. The binder may contain at least one addition polymer or addition copolymer. The article is redetachable from the material surfaces to which it may be adhered. Thus, the article may be attached, detached and reattached to a wall or cabinet surface and may have paper or other light weight, decorative material attached, detached and reattached to it. The detachment and reattachment process maybe repeated numerous times, particularly with intervening cleaning of the surface of the self-supporting and self-adhesive molded article.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: April 29, 2003
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Wolf-Ruediger Mueller, Joerg Kuhn, Bernd W. Peters
  • Patent number: 6555235
    Abstract: A pressure sensitive spacer coating for a touch screen may include a silicone adhesive material dissolved in a solvent. A touch screen may also include a first layer including a first conductive coating, a second layer including a second conductive coating, and a silicone pressure sensitive adhesive disposed between the first layer and the second layer. A method of manufacturing a touch screen may include providing a first layer having a first translucent conductive surface. The method may also include providing a second layer having a second translucent conductive surface. The method may also include applying an adhesive solution including silicone on at least one of the first conductive surface and the second conductive surface. The touch screen can be an analog or a matrix resistive touch screen. The adhesive can be applied by screen printing. The adhesive can be mixed with a slow evaporating solvent before screen printing.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: April 29, 2003
    Assignee: 3M Innovative Properties Co.
    Inventors: Brian E. Aufderheide, Paul D. Frank
  • Patent number: 6541120
    Abstract: Aqueous, lead-free cathodically depositable (CDL) coating compositions containing binders and, optionally, crosslinking agents, pigments, and/or additives conventionally employed in lacquers, as well as one or more sulfonic acid salts of the metals vanadium, manganese, iron, zinc, zirconium, silver, tin, lanthanum, cerium and/or bismuth and/or of organometallic compounds in a total amount of from 0.2 to 2 wt. %, calculated as metal and based on the resin solids.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: April 1, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Klausjörg Klein, Walter Kohhirt
  • Patent number: 6537659
    Abstract: Thermosettable PSA compositions of the invention comprise a major proportion of the adhesive component of at least one acidic polymer and at least one amine-containing compound capable of reacting with acidic functional groups on the acidic polymer to cure the thermosettable PSA composition into a thermoset adhesive. The thermosettable PSA compositions are particularly useful for forming semi-structural or structural bonds. Thermoset adhesives therefrom and methods of forming the thermoset adhesives are also disclosed.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: March 25, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Naimul Karim, Ashish Kumar Khandpur, Dmitriy Salnikov
  • Patent number: 6534185
    Abstract: A coating composition comprising A) at least one hydroxyl-containing polyacrylate containing in copolymerized form at least one polysiloxane macromonomer as binder and B) at least one tris(alkoxycarbonylamino)triazine as crosslinking agent, and its use to produce multicoat clearcoats and multicoat topcoats.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: March 18, 2003
    Assignee: BASF Coatings AG
    Inventors: Hubert Baumgart, Thomas Farwick, Ulrich Poth, Ulrike Röckrath, Andrea Zumbrink
  • Patent number: 6531214
    Abstract: A blend comprising polyolefin and hydrocarbon resin, wherein the polyolefin is semicrystalline and has a suitable degree of crystallinity and molecular weight, or the polyolefin is amorphous and has sufficiently high molecular weight, and sufficient hydrocarbon resin is present in the blend, so that a film made from the blend is substantially vinyl-like and non-elastomeric. Some of the films are also conformable, drapable or affinely deformable by hand.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: March 11, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Brandt K. Carter, Buren R. Ree, Osei A. Owusu, Mark E. Napierala
  • Patent number: 6509101
    Abstract: A silane coating (32) is provided which affords non-stick properties to a metal surface (20, 22) of a cooking utensil (10) and which can be provided with colorant (42) to impart a stable color appearance, including white, to the utensil (10). An easy repair method is also described.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: January 21, 2003
    Assignee: Aeromet Technologies
    Inventor: David C. Fairbourn