Metal Base Patents (Class 427/388.1)
  • Patent number: 6607788
    Abstract: The invention embraces basecoating compositions comprising as binder constituents (i) an acrylate dispersion having a content of from 30 to 60% by weight of C1-C8-alkyl (meth)acrylate-containing monomers, from 30 to 60% by weight of vinylaromatic monomers and from 0.5 to 10% by weight of (meth)acrylic acid in the polymer, and (ii) a dispersion of a polymer which is obtainable by subjecting an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers to free-radical polymerization in the presence of a water-insoluble initiator or of a mixture of water-insoluble initiators and in an aqueous dispersion of a polyurethane resin which has a number-average molecular weight Mn of from 1000 to 30,000 daltons and comprises on average from 0.05 to 1.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: August 19, 2003
    Assignee: BASF Coatings AG
    Inventors: Egon Wegner, Gudrun Wiemann, Ekkehard Sapper, Harald Angermüller
  • Patent number: 6605314
    Abstract: A method of preparing a capacitor having at least one porous element comprising applying to the element a masking material with an ink jet printer head. Preferably the masking material is a liquid resin such as an acrylic, a polyurethane, a silicone, or a polyimide.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: August 12, 2003
    Assignee: Kemet Electronics Corporation
    Inventors: Philip Michael Lessner, Peter Fernstrom, Brian John Melody, John Tony Kinard
  • Patent number: 6602552
    Abstract: A method for a low temperature cure for a coating composition comprising: applying to a substrate a low temperature curing coating composition consisting essentially of a film forming component consisting essentially of a non-carbamate functional polymeric component selected from the group consisting of polyester, silicone modified polyester, polyurethane, acrylic, alkyd, epoxy, polyamide, phenolic and polysilane polymers and mixtures thereof; a crosslinking component to crosslink the non-carbamate functional polymeric component; a catalyst selected from the group consisting of Lewis acids, perflouracetic acid, methane sulfonic acid catalyst and mixtures thereof; and additives selected from the group consisting of solvents, flow control agents, pigments, flexibilizing resins, surfactants, waxes, wetting agents, plasticizers, anti-oxidants, UV light absorbers, and a mixture thereof, and subjecting the coated substrate to a cure temperature of between 280° F. and 450° F.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: August 5, 2003
    Assignee: BASF Corporation
    Inventors: Edward J. Daraskevich, Ronald J. Lewarchik, Mark P. Slawikowski, Sebastian E. McCann
  • Publication number: 20030138567
    Abstract: The invention relates to a method for providing a metal surface with an anti-corrosion treatment. Said method is characterized in that the metal surface is brought into contact with a homo- or copolymer of vinylpyrrolidone. The invention also relates to a solution for application, containing a) 0.02 to 20 g/l phosphoric acid and/or at least one fluoro acid of one or more elements of the following group: Zr, Ti, Hf and Si; or their respective anions and b) 0.05 to 20 g/l of a homo or copolymer of vinylpyrrolidone; and to a concentrate for the same.
    Type: Application
    Filed: November 27, 2002
    Publication date: July 24, 2003
    Inventors: Bernd Schenzle, Alina M Koch
  • Patent number: 6596380
    Abstract: A non-stick coating with improved scratch resistance comprises an undercoat applied to a substrate, coated with a primary coat comprising a fluorocarbon resin and one or more fluorocarbon resin-based outer coats. The undercoat comprises at least 50% by weight of the polymer oxy-1,4-phenylene-oxy-1,4-phenylene-carbonyl-1,4-phenylene, known as PEEK, and is free of fluorocarbon resin.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: July 22, 2003
    Assignee: Seb SA
    Inventors: Jean-Pierre Buffard, Michel Fontaine, Claudine Gardaz
  • Patent number: 6596347
    Abstract: Processes for coating metal or polymeric substrates are provided which include the steps of: (a) applying a first powder coating composition to a surface of the substrate; (b) applying a first infrared radiation at a power density of 30 kilowatts per meter squared or less and optionally a first air simultaneously to the first coating composition for a first period of at least about 90 seconds such that a sintered first coating is formed upon the surface of the substrate; (c) applying a second powder coating composition over the first coating; and (d) applying a second infrared radiation at a power density of 30 kilowatts per meter squared or less and a second air at an air velocity ranging from about 0.5 to about 13 meters per second simultaneously to the second coating composition for a second period of at least about 2 minutes, such that a powder layered system is formed upon the surface of the substrate.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: July 22, 2003
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Donaldson J. Emch
  • Publication number: 20030127321
    Abstract: The invention concerns a microporous diaphragm obtainable by filtering through a porous support, an aqueous dispersion free of asbestos fibres and titanate fibres, comprising organic fibres, at least a binding agent selected among halogenated polymers, at least a pore-forming agent and mineral particles with non-fibrous structure. The invention also concerns a combination comprising said diaphragm and a fibrous mat obtainable by filtration deposit through a porous support of a dispersion comprising fibres whereof part is electrically conductive, at least a binding agent selected among halogenated polymers, at least an electrolytic agent, at least a pore-forming agent. The invention further concerns the preparation of the diaphragm and the combination, and the use thereof to obtain an alkali metal hydroxide solution by electrolysis of aqueous alkali metal halide solutions.
    Type: Application
    Filed: September 13, 2002
    Publication date: July 10, 2003
    Inventors: Jean-Guy Le Helloco, Jean-Maurice Perineau
  • Patent number: 6582770
    Abstract: A process for the preparation of a coating layer comprising the steps: (a) applying a coating layer to a substrate from a coating agent of which the resin solids comprise a binder system curable by free-radical polymerization of olefinic double bonds, and containing 0.1 to 4 wt-%, based on resin solids, of a morpholin-2-one derivative sterically hindered by 3,3,5,5-polysubstitution as a light stabilizer; and (b) thermal curing of the applied coating layer.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: June 24, 2003
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Volker Rekowski, Oliver Reis, Christine Kurz
  • Patent number: 6579575
    Abstract: Processes for coating metal or polymeric substrates are provided which include the steps of: (a) applying a liquid basecoating composition to a surface of the metal substrate; (b) applying a first infrared radiation at a power density of 30 kilowatts per meter squared or less and a first air simultaneously to the basecoating composition for a first period of at least about 30 seconds, a first velocity of the air at the surface of the basecoating composition being about 4 meters per second or less, a first temperature of the metal substrate being increased at a first rate ranging from about 0.05° C. per second to about 0.3° C. per second to achieve a first peak metal temperature ranging from about 30° C. to about 60° C.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: June 17, 2003
    Assignee: Industries Ohio, Inc.
    Inventor: Donaldson J. Emch
  • Publication number: 20030096062
    Abstract: A method is provided for making brass, bronze, chrome, steel, antique, and stainless steel finish metal or plastic products having enhanced antimicrobial and other properties without any significant discoloration of the metal product. A curable polymeric material containing ceramic particles preferably a zeolite with one or more antibiotic metals ion-exchanged therein is used and applied to the metal product and cured for an effective time at a specific temperature range to provide the desired metal product. Electrostatic spraying is preferred to coat the article but other application methods can be used.
    Type: Application
    Filed: November 20, 2001
    Publication date: May 22, 2003
    Applicant: Sargent Manufacturing Company
    Inventor: Ethan S. Hoberman
  • Patent number: 6562407
    Abstract: The invention concerns a method for continuously coating at least a metal strip with a crosslikable polymer fluid film free of non-active solvent or diluent and whereof the softening temperature is higher than 50° C. The method consists in continuously unwinding the metal strip (1) on at least a back-up roll (3); forming, on a roll (20) by forced flow, a layer of said crosslinkable polymer in melted state; forming, from said layer (30), said crosslinkable polymer film (31); and transferring entirely in thickness said film onto the metal strip (1) and, between the zone forming the layer (30) on the roll (20) and the zone applying the film (31) on the metal strip, in thermally conditioning the crosslinkable polymer to reduce its viscosity. The invention also concerns a coating device for implementing said method.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: May 13, 2003
    Assignee: Sollac
    Inventors: Claude Bonnebat, Frédéric Jenny, Thierry Soas
  • Patent number: 6562401
    Abstract: A stand-off device for tubulars comprising a sleeve adapted to fit around a tubular, the sleeve comprising an outer surface and a plurality of blades extending along the outer surface of the sleeve, the blades comprising a bearing surface, wherein the bearing surface of each blade is curved longitudinally. The device may be metallic or non-metallic. Non-metallic devices further comprise a protective coating to inhibit abrasion, corrosion, sparking, and electrolysis. The stand-off device is particularly suitable for use with casing in deviated wellbores.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: May 13, 2003
    Assignee: Davis-Lynch, Inc.
    Inventor: Benny Alan Eaton
  • Publication number: 20030087028
    Abstract: There are disclosed a method and a machine for applying a strippable paint to a large-sized product finished with a sprayed coating, such as an automobile, to form a protective film on the surface of the coating. The product is kept in stock and will be shipped. Contaminations such as dust are washed away from the surface of the product Then, the strippable paint is applied, preliminarily dried, and non-preliminarily dried to form the protective film out of the strippable paint on the surface of the coating. This protective film is formed easily, appropriately, and certainly. The obtained protective film has a uniform and sufficient thickness. Even if the surface contains unapplied regions to which the paint should not be applied, the paint can be applied to the whole surface of the coating while avoiding the unapplied regions. The application can be performed easily and certainly without leaving unapplied portions around the unapplied regions.
    Type: Application
    Filed: March 6, 1995
    Publication date: May 8, 2003
    Inventors: HIDEAKI TOJO, HIDEO ISHIDA, HISASHI KUROTA, HIDEO HIROE, TAKAO ARASAWA, SATORU YAMADA, NOBUYUKI OKITA
  • Patent number: 6555170
    Abstract: The invention relates in general to a method of electroplating substrates where at least a portion of the substrate is coated with a solution containing a film forming amine and sufficient acid to produce a pH of less than 6.5. The acid helps to clean the surface of the substrate, and the film forming amine forms a film on the surface of the substrate. Electroplating proceeds with greatly improved speed and efficiency, especially in low current areas.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: April 29, 2003
    Assignee: Duratech Industries, Inc.
    Inventor: James M. Taylor
  • Patent number: 6555172
    Abstract: A method of brazing a metal work is disclosed, in which the work is heated to at least the softening temperature of resin and coated with a suspension constituted of a mixture of a flux and a binder, after which the work is brazed by being heated and dried. As a result, the binder (resin) attached to the surface of the work is softened and increases in stickiness. Even if foreign matter becomes attached to the work surface, therefore, the binder causes the flux to be firmly attached to (coupled with) the work surface together with the foreign matter. Thus, the flux can be securely coated (attached) on the work surface. The temperature of the work is not lower than the evaporation temperature of water. Even if oil becomes attached to the work surface, therefore, the water in the suspension is evaporated before it can be repelled by the oil, thus making it possible to prevent the flux from being repelled along with the water. In this way, the flux can be securely coated (attached) on the work surface.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: April 29, 2003
    Assignee: Denso Corporation
    Inventors: Nobuhide Kimura, Hirokuni Hattori
  • Patent number: 6552155
    Abstract: The invention relates to polyaldimines of formula [1] and their use within moisture curable one part polyurea compositions. wherein j is an integer of 3 to 30 and R2 is unsubstituted homocyclic or heterocyclic aryl radical or alkyl, alkoxy, alkylthio or halogen substituted homocyclic or heterocyclic aryl radical.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: April 22, 2003
    Inventors: Arie Gutman, Gennadiy Nisnovich, Igor Zaltzman, Lev Judovich, Vladimir Kuznetsov
  • Patent number: 6551693
    Abstract: A heating appliance, such as a cooking container, has an inside surface coating including a decoration which changes color as a function of temperature. A decoration based on a thermostable resin and a chemical substance which changes color as a function of temperature is applied over a fluorocarbon resin coating on the inside of the container.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: April 22, 2003
    Assignee: SEB SA
    Inventors: Jean Pierre Buffard, Laurent Voisin, Claudine Gardaz
  • Patent number: 6551662
    Abstract: Solid extrusion coating compositions for metal substrates, a method of extrusion coating a metal substrate, and a metal article are disclosed. The extrusion coating composition is a thermoplastic material and comprises: (a) a polyester having a weight average molecular weight of about 10,000 to about 50,000, and optionally, (b) a modifying resin, such as an epoxy resin having an epoxy equivalent weight of about 500 to about 15,000. The extrusion coating composition is applied to a metal substrate in an extrusion process to provide a composition film having a thickness of about 1 to about 40 microns.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: April 22, 2003
    Assignee: The Valspar Corporation
    Inventors: Christina Schmid, Rolf Jung, Hans Widmer, Martin Lu, Artemia Jimenez, Louis Sharp, Stephen Postle
  • Publication number: 20030072887
    Abstract: A method of forming a coated titanium substrate comprises forming a titanium or titanium alloy based substrate, cleaning a surface of titanium substrate, coating an organic or inorganic solution on the surface of titanium substrate by plating, spraying, or rolling for forming a strong adhesion between titanium substrate and organic or inorganic solution, baking titanium substrate at a range from about 100° C. to about 230° C., and coating a layer of transparent paint on the surface of titanium substrate. This can form a strong adhesion between titanium substrate and transparent paint while demonstrating a unique surface property of titanium substrate.
    Type: Application
    Filed: October 17, 2001
    Publication date: April 17, 2003
    Inventors: Huei-Hsin Sun, Ling-Yun Chou
  • Patent number: 6544658
    Abstract: A non-stick polymer coated aluminum foil and method of making it. The method of making a non-stick polymer coated aluminum foil comprising applying a curable polymer coating composition on at least a portion of one side of an aluminum foil and partially curing the coating composition to allow handling and further processing of the coated aluminum foil without blocking of the coating composition. The curing of the coating composition is completed by heating the coated aluminum foil in bulk. The polymer coating composition may include a cross-linkable polyester.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: April 8, 2003
    Assignee: Reynolds Metals Company
    Inventor: Bruce Robbins
  • Patent number: 6544657
    Abstract: The invention concerns a synthesis method for an oligosilazane-containing condensation product comprising the following step: conversion of oligosilazane composition with an average molecular weight of no more than 1000 g/mol, with a dialk(en)ylamino compound of the following formula (I) A[N(R4)2]m  (I) in which A is at least one element chosen from B, Al, Ti, Zr, and Hf, R4 is an alkyl group or alkenyl group and m is the valence of element A, in which the reaction is run so that an average of 1.6-2.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: April 8, 2003
    Assignee: The Federal State of Bavaria, Germany as represented by The University of Bayreuth
    Inventors: Gunter Motz, Frauke Stenzel, Gunter Ziegler
  • Patent number: 6537610
    Abstract: A process for applying a dual-layer protective coating to steel suspension components of an automobile involves the steps of applying a first coat of the zinc-rich, epoxy-based coating powder to the components utilizing the conventional electrostatic application process; partially curing the layer of zinc-rich coating that has been applied to the steel components such that the zinc-rich coating is gelled; immersing the components with the first layer of gelled zinc-rich coating in a pre-heated/heated fluidized bed of thermoplastic powder so that a relative uniform layer of the thermoplastic coating powder is applied over the first coat of gelled zinc-rich coating; and finally curing the outer layer of thermoplastic powder coating and the inner layer of the zinc-rich coating.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: March 25, 2003
    Assignee: Springco Metal Coating, Inc.
    Inventors: Paul W. Springer, Jason Conn, Jamie Harmon, Robert Wolf
  • Patent number: 6534130
    Abstract: A process for the preparation of a multi-layer coating wherein a colour- and/or special effect-imparting base lacquer coating compound is applied to a substrate optionally precoated with a primer and/or primer surfacer coating compound and/or further coating compounds and a clear lacquer layer is then applied to the colour- and/or special effect-imparting base lacquer layer, wherein the colour- and/or special effect-imparting base lacquer coating compound used is one which contains binders which can be cured by free-radical and/or cationic polymerisation under the action of high-energy radiation.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: March 18, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Karin Maag, Helmut Löffler, Werner Lenhard, Christine Kurz, Frank-Jürgen Krumpolt, Volker Rekowski
  • Patent number: 6531188
    Abstract: Process for producing a multi-layer lacquer finish, in which a surfacer coating compound is applied to a substrate optionally pre-coated with a priming layer and/or further coating layers, and a top coating comprising a color-imparting and/or special-effect-imparting base lacquer layer and a transparent clear lacquer layer, or a top coating comprising a pigmented one-layer top lacquer, is then applied, in which the surfacer coating compound which is used is one which either contains binders which are curable exclusively by free radical and/or cationic polymerization, wherein the said binders are cured by means of high-energy radiation, or is one which contains binders which are curable by free radical and/or cationic polymerization, wherein the said binders are cured by means of high-energy radiation, and additionally contains chemically cross-linking binders.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: March 11, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Karin Maag, Helmut Löffler, Werner Lenhard
  • Patent number: 6528143
    Abstract: A multilayer material for sliding elements with a metallic backing layer and a plastics overlay applied thereto achieves good adhesion to the substrate without the disadvantages of known PVDF-based bearing materials. The plastics overlay comprises a PVDF content of 60-95 vol. %, the remainder consisting of PTFE or PTFE and at least one further component with a density of <7 g/cm3. The content of this further component may amount to a maximum of 5 vol. %. The other components comprise fully or partially aromatic polymers such as PI, PAE, polyamides, PPS, PES, PEEK, PSU or polyester, carbon variants such as graphite, carbon black, C fibers or coke, as well as MoS2, BN or CaF2 or CaCo3. The production method consists in scattering a powder mixture of these components onto the metallic backing material and then heating it to above the softening point of the PVDF component to form the plastics overlay, the plastics overlay thereafter being rolled smooth.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: March 4, 2003
    Assignee: Federal-Mogul Wiesbaden GmbH & Co. KG
    Inventors: Achim Adam, Karl-Heinz Gruenthaler
  • Patent number: 6514575
    Abstract: Magnetic composites exhibit distinct flux properties due to gradient interfaces. The composites can be used to improve fuel cells and effect transport and separation of different species of materials. A variety of devices can be made utilizing the composites including a separator, a cell, an electrode for channeling flux of magnetic species, an electrode for effecting electrolysis of magnetic species, a system for channeling electrolyte species, a system for separating particles with different magnetic susceptibilities. Some composites can be used to make a dual sensor for distinguishing between two species of materials and a flux switch to regulate the flow of a redox species and a flux switch to regulate the flow of a chemical species. Some composites can control chemical species transport and distribution.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: February 4, 2003
    Assignee: University of Iowa Research Foundation
    Inventors: Johna Leddy, Sudath Amarasinghe
  • Publication number: 20030021984
    Abstract: The present invention relates to a resin-coated steel sheet for fuel tanks of an automobile and a resin solution used for the same. The resin solution of the present invention comprises (a) a main solution of water soluble phenoxy resin having a number average molecular weight of 25,000 to 50,000; (b) 2 to 15 phr of melamine resin on the basis of the main solution; (c) 10 to 20 phr of colloidal silica on the basis of the main solution, (d) 2 to 10 phr of teflon resin on the basis of the main solution, and (e) 5 to 70 phr of metallic powder being selected at least one material from the group consisting of Al, Zn, Mn, Co, Ni, Sn and SnO. The resin solution is coated on a cold rolled steel sheet plated with zinc or zinc alloy over which a chromate layer films, and then baked at a local temperature of 160 to 250° C. to prepare a resin-coated steel sheet for fuel tanks of an automobile.
    Type: Application
    Filed: August 27, 2001
    Publication date: January 30, 2003
    Inventors: Jae-Ryung Lee, Sam-Kyu Chang, Sang-Geol Noh, Soo-Hyoun Cho
  • Patent number: 6509094
    Abstract: Disclosed is a polyimide coated shape memory material suitable for thermomechanical treatment to shape-set the material into the desired configuration and activate shape memory properties. The polyimide coating is subjected to a curing regime that imparts higher heat resistance in the polyimide coating to withstand the elevated temperatures required during the shape-setting treatment.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: January 21, 2003
    Inventors: Tilak M. Shah, Richard E. Gordon
  • Patent number: 6509063
    Abstract: Novel polyindanebisphenols or PIBPs for the preparation of new and improved thermosetting polymers having the general formula of are provided. Also disclosed are thermoplastic or thermoset compositions prepared using the novel compounds of the invention, as well as methods of making and using the same. When copolymerized or reactive with other commercial resins such as, e.g., epoxy compounds, PIBP based polymers are characterized by high glass transition temperature (“Tg”), low dielectric constant, low moisture absorption, low coefficient of expansion, low cost, and can be processed on equipment typically used for the production of epoxy based laminates.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: January 21, 2003
    Assignee: Honeywell International Inc.
    Inventors: Thomas Fitzgerald McCarthy, David Schwind, Gordon Smith
  • Patent number: 6500554
    Abstract: An extrusion-coated metal article is prepared by applying a mixture which comprises an organosilane composition to a metal surface, and then extruding a melt of a polyamide molding composition onto the coated surface thus treated and dried.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: December 31, 2002
    Assignee: Degussa AG
    Inventors: Klaus Gahlmann, Walter Hellermann
  • Patent number: 6500544
    Abstract: A two-component curable paint composition comprises a base component containing at least one curable resin, and a hardening component which contains a non-conducting polyaniline, and a liquid-phase or molten-phase curing agent capable of curing said curable resin of the resin component and capable of dissolving non-conducting polyaniline. According to the invention, the curing agent comprises an organic amine compound having at least two primary amine functions linked together by a hydrocarbon chain which is optionally interrupted by at least one heteroatom, said amine compound exhibiting irregularities in the chemical structure of its hydrocarbon chain. The invention also provides a method of preparing paint compositions, a method of forming a paint coating on the surface as well as a coated metal surface. The solutions produced by the invention are stable over extended periods of time, and the anti-corrosive erect of the paint compositions is good even at very low concentrations of the polyaniline.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: December 31, 2002
    Assignee: Panipol Oy
    Inventors: Mari Tiitu, Anja Talo, Kurt Blomqvist, Matti Jussila, Olli Ikkala
  • Publication number: 20020176999
    Abstract: A method is provided for making carbon-steel blind slats and products thereof by slitting the carbon-steel sheet into pieces of desired width, trimming the edges, quenching, speedy cooling, tempering, and painting and baking. The blind product made by this method is merited in resilience, lifetime, easy maintenance, heat-resistance, fad-resistance, and is retrievable and reusable to conform to the environment protection conditions.
    Type: Application
    Filed: May 25, 2001
    Publication date: November 28, 2002
    Inventor: Chin-Han Wang
  • Patent number: 6485789
    Abstract: The invention provides a method of treating of a substrate by contacting the substrate with a fluorochemical composition that comprises a condensation product of a di- or tri-isocyanate and at least one polyether, the polyether being obtained as the reaction product of a fluorochemical substituted epoxide. Substrates treated in accordance with the invention have good stain release properties, particularly to oil stains or tea stains, so stains can be more easily removed from the treated substrate in a laundering procedure.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: November 26, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Kathy E. M. L. A. Allewaert, Pierre J. Vander Elst, Rudolf J. Dams
  • Patent number: 6485550
    Abstract: A self-sacrifice type metal corrosion inhibitor is prepared by dispersing one or more kinds of metal powder having a greater ionization tendency than that of a metal to be treated and a water-insoluble thermoplastic resin powder in water containing a water-soluble anticorrosion agent, a surface-active agent and a thickener to from a treatment solution. The treatment solution is applied to the surface of the metal to be treated, which is heated to melt the thermoplastic resin powder and form a thermoplastic resin layer fixed to the surface of the metal. It forms a metal corrosion-inhibiting layer fixed to the surface through the thermoplastic resin, which acts as an adhesive layer.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: November 26, 2002
    Assignees: Toyographoile Ltd., Institute of Technology Precision Electric Discharge Work's
    Inventor: Kunihiko Hirose
  • Patent number: 6482529
    Abstract: This invention relates to a coated substrate comprising (i) a substrate and (ii) a coating thereupon comprising a polymeric composition formed from (a) twenty-five to ninety-nine parts by weight of a poly(amide-imide) prepolymer; (b) one to twenty-five parts by weight of a trifunctional ester selected from the group consisting of trifunctional methacrylate ester, trifunctional acrylate ester, and mixtures thereof; (c) from 0.5 to fifteen parts by weight of an organo-reactive silane consisting of an amino group containing alkoxysilane having the formula NH2(CH2)nSi(OC2H5)3 where n is an integer from one to twenty; and (d) a conductive additive.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: November 19, 2002
    Assignee: Alchemetal Corp.
    Inventors: Mohan L. Sanduja, Carl Horowitz, Paul Thottathil, Lina Zilberman, Edward Greenwood
  • Patent number: 6479103
    Abstract: Conductive and weldable anti-corrosive compositions based on (blocked) polyurethane resins, epoxy resins, together with curing agents containing nitrogen and conductive extenders are suitable for coating metal surfaces, in particular sheet steel in the coil coating process. These compositions are distinguished by a low stoving temperature, a distinct reduction in white rust on galvanized sheet steel in the salt spray test and by an improvement in the adhesion of the organic coating on the metallic substrate. These coatings furthermore also achieve adequate corrosion protection with a thin chromium coating, preferably also in Cr-free pretreatment processes. Sheet metal coated in this manner may be spot welded using any conventional processes.
    Type: Grant
    Filed: August 7, 2000
    Date of Patent: November 12, 2002
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Winfried Wichelhaus, Wolfgang Lorenz, Andreas Kunz, Wolfgang Krey
  • Patent number: 6476119
    Abstract: A primer or coating composition that includes (A) an aqueous dispersion of a phenolic resin that includes water and a reaction product of a phenolic resin precursor, a modifying agent and, optionally, a multi-hydroxy phenolic compound wherein the modifying agent includes at least one functional moiety that enables the modifying agent to react with the phenolic resin precursor and at least one ionic moiety, and (B) a flexibilizer. According to one embodiment the modifying agent is an aromatic compound. According to another embodiment the ionic moiety of the modifying agent is sulfate, sulfonate, sulfinate, sulfenate or oxysulfonate and the dispersed phenolic resin reaction product has a carbon/sulfur atom ratio of 20:1 to 200:1.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: November 5, 2002
    Assignee: Lord Corporation
    Inventors: Helmut W. Kucera, Rebecca S. Cowles
  • Patent number: 6472026
    Abstract: Process for producing a multi-layer lacquer finish, in which a surfacer coating compound is applied to a substrate optionally pre-coated with a priming layer and/or further coating layers, and a top coating comprising a colour-imparting and/or special-effect-imparting base lacquer layer and a transparent clear lacquer layer, or a top coating comprising a pigmented one-layer top lacquer, is then applied, in which coating compounds which contain binders which are curable by free radical and/or cationic polymerisation are employed as the surfacer, the base lacquer and the clear lacquer as well as the one-layer top lacquer, and wherein the said binders are cured by means of high-energy radiation.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: October 29, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Karin Maag, Helmut Loffler, Werner Lenhard
  • Patent number: 6461682
    Abstract: Corrosion of metal surfaces, particularly aluminum or aluminum alloy surfaces, is inhibited by contacting the metal surfaces with a solution comprising a mercapto-substituted silane and then preferably baking the metal to cure the silane coating. Multifunctional organo-mercapto-substituted silanes are preferred in the practice of the process. Preferably, the treatment solution is an aqueous mixture of the mercapto-substituted silane and selected solvents.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: October 8, 2002
    Inventors: David Crotty, Justin Girard, Tarek Nahlawi
  • Patent number: 6458439
    Abstract: Solid extrusion coating compositions for metal substrates, a method of extrusion coating a metal substrate, and a metal article are disclosed. The extrusion coating composition is a thermoplastic material and comprises: (a) a first polyester having a weight average molecular weight of about 10,000 to about 80,000 and a Tg of greater than 45° C. to about 100° C., (b) a second polyester having a weight average molecular weight of about 10,000 to about 70,000 and a Tg of about −10° C. to about 45° C., and optionally, (c) a modifying resin, such as an epoxy resin having an epoxy equivalent weight of about 500 to about 15,000, wherein the Tg of the first and second polyesters differ by about 5 C.° to about 60 C.°. The extrusion coating composition is applied to a metal substrate in an extrusion process to provide a composition film having a thickness of about 1 to about 40 microns.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: October 1, 2002
    Assignee: The Valspar Corporation
    Inventors: Rolf Jung, Claude Chappuis
  • Patent number: 6451383
    Abstract: A composition and method is described for providing conformal protective or decorative polymer coatings on metals such as aluminum, copper, iron, steel, zinc, and their formation by dip autopolymerization. In accordance with the present invention, an acidic solution of organic monomer undergoes autopolymerization upon contact with a metal substrate, thereby forming a polymeric coating on the substrate. The method comprises providing the acidic monomer solution, dipping the metal substrate to be coated for a prescribed period of time depending on the thickness of the coating desired, and then removing the substrate from the solution. Importantly, the polymerization requires no application of external driving force, such as thermal or electrical energy. The coatings thus formed are up to 50 microns thick, and conform to the shape of the substrate. These coatings further have uniform thickness, and excellent thermal stability and protective properties.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: September 17, 2002
    Assignee: The University of Connecticut
    Inventors: James P. Bell, Nicole Baker
  • Patent number: 6451380
    Abstract: Compounds useful as reactive coalescents and methods of improving the stability of reactive coalescents are disclosed. A process for the preparation of low molecular weight polymers which are also useful as reactive coalescents is also disclosed.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: September 17, 2002
    Inventors: David Gerald Speece, Jr., William David Weir, Eric Karl Eisenhart, Michael Damian Bowe, Martha Alice Harbaugh Wolfersberger
  • Publication number: 20020122950
    Abstract: A novel and improved polymeric coating composition and method for applying adherent film coatings to metallic substrates is provided wherein a finely divided or powdered coating material, such as ceramic powders, carbon powders or metallic particles, is substantially uniformly dispersed within a polymeric binder comprising a host polymer and a suitable bonding promoter. The use of a bonding promoter allows a significant amount of cross-linking to occur in situ after the coating composition has been applied to the metallic substrate thereby achieving good adherence between the coating and the substrate and improving the robustness of the coating.
    Type: Application
    Filed: February 9, 2002
    Publication date: September 5, 2002
    Applicant: Yardney Technical Products, Inc.
    Inventors: Grant M. Ehrlich, Frank J. Puglia
  • Patent number: 6440502
    Abstract: A method of fabricating a tape for a tape rule disclosed herein comprises the steps of adding a dyestuff into a polyester material mixed with a binding glue and churning the mixture so as to offer the polyester material a specified color; adhering the colored polyester material by rolling with a 150° C. hot roller to both surfaces of a steel tape so as to form a base coat film; printing graduations on one or both surfaces of the tape already having the base coating; drying the tape by infrared radiation; rolling a mixture of a transparent polyester and a binding glue with the 150° C. hot roller on both surfaces of the tape to form a protecting layer; and finishing fabrication of the tape. The tape fabricated is flat, stiff, flexible, and friction resistant, also capable of saving production costs.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: August 27, 2002
    Inventor: Shih-Lin Lee
  • Patent number: 6437046
    Abstract: This invention relates to a low-density polyethylene composition useful for coating polar substrates. This invention particularly relates to a low-density polyethylene composition useful for coating metal foils, wherein the composition comprises an ethylene/(meth)acrylic acid copolymer having a low acid content.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: August 20, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Barry Alan Morris
  • Patent number: 6432490
    Abstract: The process of this invention applies at least one coating composition to an optionally precoated substrate and then cures the thus obtained coating layer(s), whereby at least one of the coating layers is prepared from a coating composition that can be chemically cross-linked solely by radical polymerization of olefinic double bonds, the resin solid of the composition has a C═C equivalent weight from 100 to 10,000, preferably from 100 to 5,000, and the curing of the coating layer(s) is carried out with NIR radiation in the wave length range from 760-1500 nm.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: August 13, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Volker Rekowski, Oliver Reis, Martin Wulf
  • Publication number: 20020106454
    Abstract: An ultrahigh molecular weight polymer, such as ultrahigh molecular weight polyisobutylene, is used as an additive to enhance the coating properties of a solvent. The polyisobutylene has a molecular weight of at least 2.5-3.0 million daltons, preferably greater than about 6 daltons, and is provided in a preferred concentration of 0.05 to 0.3%. The solvent can be a medicinal grade mineral oil. Other suitable solvents include hydrocarbon oil and low viscosity, synthetic compositions. In all cases, the coating properties of the solvent are greatly enhanced by the addition of ultrahigh molecular weight polyisobutylene. In another aspect of the invention, ultrahigh molecular weight polyisobutylene is used as an additive to enhance the viscoelasticity of a mineral oil based sunscreen formulation. In still another aspect of the invention, the fibers of a fabric material are coated with an ultrahigh molecular weight polymer to greatly strengthen the fabric.
    Type: Application
    Filed: December 26, 2001
    Publication date: August 8, 2002
    Applicant: General Technology Applications, Inc.
    Inventors: Jerry C. Trippe, Albert F. Hadermann, James A. Cole
  • Publication number: 20020098366
    Abstract: A method for enhancing the corrosion resistance of a metal article comprises coating a metal article with poly(arylene ether) in a carrier, and evaporating the carrier, wherein the poly(arylene ether) has an intrinsic viscosity of less than about 0.60 dl/g as measured in chloroform at 25 ° C. The coated metal articles find utility in automobiles, ships and in electronic media devices.
    Type: Application
    Filed: September 20, 2001
    Publication date: July 25, 2002
    Inventors: Hua Guo, Kenneth Paul Zarnoch
  • Patent number: 6423417
    Abstract: A non-stick polymer coated aluminum foil and method of making it. The polymer coating composition comprises a silicone resin, a silicone release agent, a silicone curing agent, a hindered phenol antioxidant and a solvent. The method of making the non-stick polymer coated aluminum foil includes applying the polymer coating composition on at least a portion of one side of the aluminum foil and partially curing the coating composition to allow handling and future processing of the coated aluminum foil without blocking of the coating composition. The curing of the coating composition is completed by heating the coated aluminum foil in bulk.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: July 23, 2002
    Assignee: Reynolds Metals Company
    Inventor: Bruce Robbins
  • Patent number: 6423377
    Abstract: A method for producing an organic insulating film comprising the steps of coating a solution containing a dissolved organic resin having a structure of the following formula (1) on a substrate, and exposing the coated substrate at a temperature of 200° C. or more under an atmosphere of an oxygen partial pressure of 0.01 atm or less, wherein each of R1 to R8 is independently selected from the group consisting of a hydrogen atom, fluorine atom, chlorine atom, bromine atom and iodine atom, alkyl groups having 1 to 10 carbon atoms, functional groups containing a double bond having 2 to 10 carbon atoms, functional groups containing a triple bond having 2 to 10 carbon atoms, a methoxy group, ethoxy group and propoxy group.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: July 23, 2002
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Yuji Yoshida