Epoxy Or Polyepoxide Containing Coating Patents (Class 427/410)
  • Patent number: 6605357
    Abstract: A PEI film to be bonded is disposed on a glass epoxy substrate through an alkane film, and a position to be adhered is heated to a temperature not less than the glass transition point Tg of the PEI film, thereby forming an adhesion-improving layer in which the alkane is dispersed into the PEI film, in the PEI film at the interface with the glass epoxy substrate. That is, the PEI film is bonded to the glass epoxy substrate through the adhesion-improving layer. Therefore, an adhesive strength is improved because the adhesion-improving layer has an elastic modulus lower than that of the PEI film.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: August 12, 2003
    Assignee: Denso Corporation
    Inventors: Toshihiro Miyake, Katsuaki Kojima, Hiroyasu Iwama
  • Patent number: 6579673
    Abstract: The present invention provides an inexpensive and sensitive device and method for detecting and quantifying analytes present in a medium. The device comprises a metalized film upon which is printed a specific, predetermined pattern of an antibody-binding proteins. Upon attachment of a target analyte to select areas of the plastic film upon which the protein is printed, diffraction of transmitted and/or reflected light occurs via the physical dimensions and defined, precise placement of the analyte. A diffraction image is produced which can be easily seen with the eye or, optionally, with a sensing device.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: June 17, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Kevin McGrath, Rosann M. Kaylor, Dennis S. Everhart
  • Patent number: 6562467
    Abstract: A corrosion and ultraviolet ray resistant composite coated article (46) for use in or to contain electrical equipment is made by first cleaning an uncoated article (10) at a cleaning station (14), and then successively passing the cleaned article through wash workstation (16) phosphate bond coating workstation (18), wash workstation (22), non-chrome sealant coating workstation (24), drying workstation (26), heating workstation (30), epoxy resin coating workstation (32), and exterior painting workstation (40) by any type of transport system (12, 36), where the epoxy coated article can be passed again through previous workstations (14, 16, 18, 22, 24, 26, 30, 34) before final painting at workstation (40).
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: May 13, 2003
    Assignee: Eaton Corporation
    Inventors: Scot E. Remmert, Douglas L. Ketterer
  • Patent number: 6555176
    Abstract: Coating composition containing a binder/crosslinking agent system, organic solvents, optionally together with pigments and/or extenders and conventional lacquer additives, wherein the binder/crosslinking agent system contains A) 20 to 80 wt. % of carboxy-functional (meth)acrylic copolymers and/or polyesters which are dissolved in the continuous phase of the coating composition, with an acid value of 15 to 300 mg of KOH/g, B) 80 to 20 wt.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: April 29, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Ralf Dahm, Carmen Flosbach, Hans-Jürgen Gawin, Hermann Kerber, Apostolos Manassis, Volker Paschmann, Walter Schubert
  • Patent number: 6555181
    Abstract: A process for making a multiple-layer elastomer-coated member, includes applying a coating of an elastomeric material to a supporting metallic substrate; and curing the elastomeric material by exposure to radiant energy in a radiant energy curing apparatus.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: April 29, 2003
    Assignee: Xerox Corporation
    Inventors: Carla M. Santos, Elizabeth L. Ogren, Alan R. Kuntz, George A. Riehle, Laurence J. Lynd
  • 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
  • Publication number: 20030031799
    Abstract: A primer for flame sprayed polyolefin comprises an epoxy resin, preferably of low molecular weight and/or low viscosity; and an amine hardener, part of which becomes highly reactive on exposure to open flame, providing near instant cure of the composition under flame spray conditions. The invention is unique that it provides strong adhesion to steel, even where the surface preparation is less than ideal, as well as to concrete and other substrates. The primer eliminates the need to preheat the substrate. The primer has strong adhesion to the topcoat polyolefinic material, especially to a functionalized topcoat. The composition withstands open flame and does not char under polyolefin flame spray conditions, nor does it run or sag, and it is not prone to failure as it cools after the application of the polyolefin.
    Type: Application
    Filed: May 21, 2001
    Publication date: February 13, 2003
    Inventor: Shah A. Haque
  • Patent number: 6514374
    Abstract: A token is manufactured using a combination of minting or casting operations and printing operations. The token comprises a metal base material that is minted or cast to the size and shape desired including embossed or debossed areas at selected locations on the token. In selected recessed or countersunk portions of the token, there are provided thin disks of material capable of carrying printed material such as single-colored or multi-colored pictures or indicia. The imprinted disk portions of the token are covered with a first protective coating and, optionally a second protective coating, that eliminates wear and tear on the printed areas of the token. Additionally or alternatively, the entire token can be covered with an outer coating to minimize wear and tear and preserve the unique designs carried by the token.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: February 4, 2003
    Assignee: Nevada Coin Mart, Inc.
    Inventors: Stanley Zurawski, Scott Martin, James Warren
  • Patent number: 6514568
    Abstract: Disclosed is a 3-coat 2-bake method of forming a multilayered topcoat film, comprising applying a first coating composition (A) and a second coating composition (B) to a substrate, thermally curing the two compositions, and applying and thermally curing a clear coating composition (C); the first coating composition (A) being an organic solvent-based colored coating composition; the second coating composition (B) being an organic solvent-based coating composition comprising an acrylic resin (b-1) having at least two side chains of different lengths, each of which is bonded to the main chain and has at least one hydroxyl group, a polyepoxide (b-2) and a crosslinking agent (b-3); and the clear coating composition (C) being a powder coating composition (C-1) or an organic solvent-based coating composition (C-2) comprising a hydroxyl- and carboxyl-containing resin (c-2a) and a polyepoxide (c-2b).
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: February 4, 2003
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Hiroyuki Nagano, Hideo Sugai, Yasumasa Okumura
  • Patent number: 6506461
    Abstract: The present invention is a method of making a thin film of a polyurethane. The method has the steps of: (a) vacuum coating a thin layer of a solventless mixture of a monomer mixture, said monomer mixture selected from the group consisting of polyols, polyisocyanates and combinations thereof, onto a substrate in a vacuum chamber; and (b) curing the monomer as said thin film of said polyurethane.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: January 14, 2003
    Assignee: Battelle Memorial Institute
    Inventor: John D. Affinito
  • 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: 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: 6472020
    Abstract: A process for forming a multilayer coating film on automotive bodies which comprises applying a clear coating for top coating, by the wet-on-wet technique, onto a base coating containing a color pigment and/or a luster pigment as applied to a coated automotive panel and then heating the coat layers for curing, said base coating comprising, as resin constituents, a product obtained by grafting a silicate compound (A) onto a hydroxyl-containing acrylic resin or polyester resin and a melamine type curing agent.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: October 29, 2002
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Manabu Yoshioka, Teruzo Toui
  • Patent number: 6461683
    Abstract: A method for inhibiting corrosion of aluminum and other metal-containing surfaces exposed to environmental conditions, including moisture, salt and extreme temperatures, for extended periods. In one embodiment, an aqueous silicate solution is applied to a water break free aluminum alloy surface, forming a silicate protective film on the surface. After the silicate compound protective film dries, an aqueous dichromate solution is applied to the surface, forming a dichromate sealant layer on top of the silicate protective film. The combination of silicate compound protective film and dichromate compound sealant layer provides significant corrosion-inhibiting effects, protecting the underlying metal surface from corrosion for periods more than a year even when the metal surface is exposed to rain, salt fog, and extremes of temperature.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: October 8, 2002
    Assignee: Lockheed Martin Corporation
    Inventor: Paresh R. Modi
  • Patent number: 6444272
    Abstract: The present invention relates to a single-packaged epoxy resin coating composition comprising: (A) an epoxy resin having at least one epoxy group in a molecule and capable of being dissolved in the following organic solvent (D), (B) a ketimines compound having at least two primary amino groups blocked with a carbonyl compound and having no other amino groups than the above blocked amino groups, (C) a dehydrating agent and (D) an organic solvent, wherein the above organic solvent (D) comprises a hydrocarbon base solvent selected from the group consisting of an aliphatic hydrocarbon base solvent and an aromatic hydrocarbon base solvent having a boiling point of 148° C. or higher in a proportion of at least 95% by weight based on the above organic solvent (D).
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: September 3, 2002
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Koji Matsuda, Yoshimitsu Adachi, Tadashi Nakano, Shinji Iida
  • Patent number: 6436468
    Abstract: The present invention provides a repair coating process, the repair coating process consisting of grinding the part of an intermediate coating surface to be repaired and then performing a repair coating of the ground part with a thermo-curable organic solvent type repair paint (F) containing a neutralized product of a hydroxyl group-containing resin having an acid value of 5-100 mgKOH/g and a crosslinking agent in forming multilayer coating films by coating an electro-deposition paint (A) and an intermediate paint (B) and curing them by heating, then, after performing a repair coating on the intermediate coating surface, successively coating wet-on-wet a white water base coat (C), a pearly base coat (D), and a clear coat (E), and then curing by crosslinking the films of the above-mentioned coats (C), (D), and (E) simultaneously through heating.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: August 20, 2002
    Assignee: Kansai Paint Co., Ltd.
    Inventor: Takanobu Iizuka
  • Patent number: 6432485
    Abstract: An aqueous surface coating agent containing A) an amine component consisting of aminourethanes Al), which are obtainable by reacting compounds with at least one cyclic carbonate group with amines with at least one primary amine group, wherein the ratio of the number of cyclic carbonate groups to the number of primary amine groups is 1:10 to 1:1.1, and which may be reacted with hydrophilic water-dilutable epoxide compounds A2), wherein the ratio of the number of all the amine hydrogen atoms in Al) to the epoxide groups in A2) is 2:1 to 20:1, and B) an epoxide component consisting of urethane group-containing epoxide compounds which are obtainable by reacting one or more epoxide compounds c) with polyisocyanates d), wherein the polyisocyanates are used in an amount of 0.1 to 50 wt. %, with respect to the amount of epoxide compound.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: August 13, 2002
    Assignee: E. I. duPont de Nemours & company
    Inventors: Heike Beyers, Karin Maag, Bettina Vogt-Birnbrich
  • Publication number: 20020106458
    Abstract: A method for treating a micro-roughened metal surface to improve bonding between the metal surface and a polymer material. The method involves post-treating the micro-roughened conversion coated metal surface with an epoxy resin composition after having formed the micro-roughened conversion coated metal surface with an adhesion promotion composition. The method can be employed in the circuit board industry to improve bonding between innerlayers in a multiplayer circuit board.
    Type: Application
    Filed: November 29, 2001
    Publication date: August 8, 2002
    Applicant: Shipley Company, L.L.C.
    Inventors: Joseph R. Montano, James G. Shelnut
  • Patent number: 6419989
    Abstract: The present invention relates to a process for producing coated substrates, especially coated automobile bodies, coils and furniture, in which first of all a powder slurry clearcoat material and then a sol-gel clearcoat material are applied to an optionally precoated substrate and are then cured conjointly.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: July 16, 2002
    Assignee: BASF Coatings AG
    Inventors: Peter Betz, Horst Hintze-Büning, Christel Ehlig
  • Patent number: 6410092
    Abstract: The anticorrosive properties of a coating autodeposited on a metal substrate are improved by contacting the autodeposited coating with an aqueous solution of an alkaline earth metal compound such as calcium nitrate prior to curing.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: June 25, 2002
    Assignee: Henkel Corporation
    Inventors: Zhiqi Yang, William E. Fristad
  • Publication number: 20020064644
    Abstract: A heater roller assembly for use with a fuser apparatus includes a housing comprising a radiation shield enclosing a radiant heat source, and a heater roller that is disposed within the housing and is externally heated by the radiant heat source. The heater roller includes a core, a base cushion layer overlying the core, and an outer layer overlying the base cushion layer.
    Type: Application
    Filed: October 9, 2001
    Publication date: May 30, 2002
    Applicant: NexPress Solutions LLC
    Inventors: Andrew Ciaschi, Jiann-Hsing Chen, Biao Tan, Joseph A. Pavlisko
  • Patent number: 6395340
    Abstract: This invention provides a thermosetting organic solvent paint comprising (A) a compound having at least two alicyclic epoxy groups in one molecule and having a number average molecular weight of less than 2000, (B) a secondary amino group-containing compound and (C) a thermolatent cationically polymerizable catalyst and further, under circumstances, (D) colloidal silica, and capable of forming a rigid coating film which is hard, tough and excellent in stain resistance, and from which pollutants, if adhered, are easily removed. This invention further provides a method to form a multi-layered top coating film which comprises applying, to a material to be coated, one or more species of colored paint and one or more species of clear paint in order, said method being characterized in that the above-mentioned paint is used as a clear paint which is to be applied on the uppermost layer.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: May 28, 2002
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Seiji Wada, Satoshi Ikushima, Haruhiko Aida, Hideo Sugai
  • Patent number: 6379752
    Abstract: A process for producing a rubber-metal composite on a metal, characterized in that: (a) a self-depositing resin is deposited on the metal and cured; (b) if desired, a primer is applied to the resin; (c) a binder is applied to the primer or the self-depositing resin; (d) a natural or synthetic rubber is applied to the binder; and (e) the rubber is vulcanized at a temperature within the range from 90 to 220° C.; and also a composite structure obtainable hereby.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: April 30, 2002
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Ralf Schelbach, Ilona Lange
  • Patent number: 6368661
    Abstract: The present invention provides a method for repair coating characterized by applying an epoxy-polyamine resin base coating composition comprising an epoxy resin having at least one epoxy resin in a molecule and an amine base curing agent as resinous components on a deteriorated coating film which is selected from a tar epoxy resin coating film, a tar urethane resin coating film, a modified epoxy resin coating film, a modified urethane resin coating film, an epoxy-polyamine resin coating film and an epoxy urethane resin coating film and which has a water content of 0.3 to 5% by weight.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: April 9, 2002
    Assignee: Kansai Paint Co., Ltd.
    Inventor: Tadashi Nakano
  • Patent number: 6358581
    Abstract: To provide a multiple coat metal pipe and its fabrication method having excellent corrosion resistance without deteriorating chipping resistance or splashing resistance, capable of being fabricated easily and capable of simply carrying out peel off operation owing to a weak peel off strength wherein corrosion resistance of an end working portion is not deteriorated, there is provided a multiple coat metal pipe which is a metal pipe constituted by multiplexing and coating a first layer including a resin having an adhesive force in respect of a surface treatment layer formed on an outer peripheral face of the metal pipe and capable of being extruded and a second layer provided on an outer peripheral face of the first layer, having a chipping resistance and capable of being extruded, wherein a peel off strength between the first layer and the second layer is 75 g/cm or less.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: March 19, 2002
    Assignee: USUI Kokusai Sangyo Kaisha Ltd.
    Inventor: Masayoshi Usui
  • Patent number: 6346292
    Abstract: Corrosion- and chip-resistant coatings for high tensile steel components, such as automotive coil springs, are formed from a coating powder composition of “toughened” epoxy resin. In a single coat embodiment, the entire coating is loaded with at least 75 phr zinc powder. In a dual coat embodiment, an inner coat is loaded with at least 75 phr zinc and an outer, zinc-free coating is reinforced by the addition of fibers and/or by a foaming agent which renders it porous.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: February 12, 2002
    Assignee: Rohm and Haas Company
    Inventors: Tina L. Grubb, Catherine A. Kleckner, William E. Wertz, Michael C. Siminski, Andrew T. Daly, Jeno Muthiah
  • Patent number: 6338869
    Abstract: The present invention provides a coating composition capable of forming a coating film having good performances such as an adhesive property even if coated on a deteriorated coating film surface of a high rust-preventive coating film of a tar epoxy resin coating material and the like without providing pre-treatment, and a coating method thereof. The above coating composition is a coating composition of an organic solvent type or solventless type comprising an epoxy resin having at least one epoxy group in a molecule and an amine base curing agent as resin components, wherein moisture of 1 to 30 parts by weight per 100 parts by weight of the solid matter of the coating composition is contained.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: January 15, 2002
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Tadashi Nakano, Akira Saito, Shigeo Inomata
  • Publication number: 20010048978
    Abstract: The present invention is a method of making a thin film of a polyurethane. The method has the steps of: (a) vacuum coating a thin layer of a solventless mixture of a monomer mixture, said monomer mixture selected from the group consisting of polyols, polyisocyanates and combinations thereof, onto a substrate in a vacuum chamber; and (b) curing the monomer as said thin film of said polyurethane.
    Type: Application
    Filed: March 31, 1999
    Publication date: December 6, 2001
    Inventor: JOHN D. AFFINITO
  • Publication number: 20010041225
    Abstract: A method of applying a matching layer to a transducer includes placing the transducer on a fixture and covering the transducer with a stencil so that an opening in the stencil allows access to a metal-coated, piezoelectric surface of the transducer, and so that the stencil is affixed to the transducer surface. A roughly cylindrically shaped bead of epoxy is extruded onto the stencil at a predetermined distance from the opening, and a blade is positioned upstanding relative to the transducer surface and located so that the bead lies between the blade and the opening. The fixture is moved laterally so that the blade rolls the bead across the exposed transducer surface to form a layer of epoxy thereon. The fixture can then be moved back in the opposite direction to its initial position if desired. The assembly can also be subjected to a vacuum before the fixture is returned to its initial position. If desired, the fixture can be designed to vibrate during movement.
    Type: Application
    Filed: June 13, 2001
    Publication date: November 15, 2001
    Inventors: Don S. Mamayek, Veijo Suorsa
  • Patent number: 6312765
    Abstract: To provide a method for repairing a coated surface of a vehicle, using an ultraviolet curing resin having excellent quick-drying property, and giving a good finish in a shortened working time, a method for repairing the damage on a coated surface of a vehicle being a depression and/or a depletion of a coating film, which is characterized by comprising the following steps a) to c): a) filling a putty raw material comprising an ultraviolet polymerizing resin composition in an optionally pretreated damage portion and ultraviolet curing the putty raw material to fill the damaged portion with the putty; b) uniformly spray coating, on the coated surface including at least the putty-covered surface after the step a), a primer surfacer raw material comprising an ultraviolet polymerizing resin composition having a viscosity sufficient for spray coating and ultraviolet curing the obtained raw material coating film to form a primer surfacer layer; and c) applying a top coat on the primer surfacer layer obtained in b)
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: November 6, 2001
    Assignee: Dukeplanning & Co., Inc.
    Inventor: Makoto Ueno
  • Patent number: 6248403
    Abstract: A non-chrome process for the pretreatment of substrate surfaces to simultaneously clean them and improve their bonding strength for organic coatings such as adhesives, protective primers, sealants, paints, composites and similar materials conventionally bonded to such substrates, including non-chromated or chromated curable organic resin protective coatings applied directly to bare aluminum substrates. The invention involves the use of novel wipe solvent compositions containing a major volume of an environmentally-safe volatile organic solvent which has a low composite vapor pressure or is otherwise exempt from federal, state or local regulations, and a minor volume of a polyfunctional coupling agent, preferably of the silane type.
    Type: Grant
    Filed: January 3, 2000
    Date of Patent: June 19, 2001
    Assignee: Northrop Grumman Corporation
    Inventors: John Douglas Weir, Joanne Swiderski McLaughlin
  • Patent number: 6242055
    Abstract: A cured coated article and a process for making same includes coating a substrate, such as wood, plastic, high pressure laminates, ceramic or metal with a radiation curable top coat having UV protectable additives therein. The radiation curable top coat is subjected to a curing step which includes curing with either an electron beam, ultraviolet radiation or a combination thereof. A sublimatable ink may be transferred into the top coat.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: June 5, 2001
    Assignee: Universal Woods Incorporated
    Inventors: Paul Neumann, Donald P. Hart, Jr.
  • Patent number: 6238742
    Abstract: The process for preadherizing a drawn polyester filament to improve adhesion of rubber material with the filament includes applying a preadherizing agent to a running drawn polyester filament. The preadherizing agent is made by mixing a first solution containing a polyepoxide and a second solution containing a tertiary amine. In order to minimize soiling of the applicators used to apply the solutions to the running drawn polyester filament, the first solution is applied to the running drawn polyester filament at a site spaced a predetermined distance from the site at which the second solution is applied.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: May 29, 2001
    Assignee: Rhodia Filtec AG
    Inventors: Istvan Csonka, Beat Meyer
  • Patent number: 6224943
    Abstract: The method for improving the corrosion resistance of reinforced concrete coated with a thermal spray coat of metals, especially of zinc or zinc alloys, is effected by electrically connecting said spray coat with the armour and additionally coating it with a polyurethane resin which is applied as a low-viscosity solution in organic solvents.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: May 1, 2001
    Assignee: Grillo-Werke AG
    Inventors: Michael Knepper, Jochen Spriestersbach, Juergen Wisniewski
  • Patent number: 6224798
    Abstract: A method of curing a polymeric binder onto a powdered metal after such polymer has been coated on the powdered metal but before a part is therefrom molded, thereby forming a polymer matrix-powdered metal composite material. The polymer-coated powdered metal may be cured by retaining the polymer-coated powdered metal in a fluidized bed contained within a fluidized bath (e.g. a fluid bed coater/drier apparatus) even after the coating process has terminated. The temperature of the fluidized bath may then be raised, in turn raising the temperature of the fluidized bed, thereby curing the polymer onto the coated powdered metal in situ. By keeping the polymer-coated power metal in constant motion during the curing process, the polymer-coated powdered metal particles do not agglomerate nor otherwise adhere to other coated powdered metal particles.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: May 1, 2001
    Assignee: Delphi Technologies, Inc.
    Inventor: David Earl Gay
  • Patent number: 6220305
    Abstract: Described is a preferred method for manufacturing a coal tar enamel-coated steel pipe, in which a primer coat of epoxy resin is applied to a preheated steel pipe, and coal tar enamel is applied to the primer coat prior to full curing of the latter. The resulting coated steel pipes, which also are described, exhibit excellent resistance to cathodic disbondment, heat and water.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: April 24, 2001
    Assignee: Reilly Industries, Inc.
    Inventors: John R. Johnson, William R. Roder, C. Sherill Henegar
  • Patent number: 6217674
    Abstract: A composition for passivating a metal substrate is provided. The composition is prepared by mixing together: a) Group IIIB or IVB metal compound; and b) a reaction product of an epoxy group-containing polymer or oligomer, a hydroxy functional acid and a dialkanolamine. The compositions, which are substantially free of chrome, are used to treat metal substrates prior to the application of a protective or decorative coating.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: April 17, 2001
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Ralph C. Gray, Brian T. Hauser, Joseph T. Valko
  • Patent number: 6217945
    Abstract: In a process for overcoating a substrate having a cured primer coating with a curable topcoat which when cured is swellable by a stripping solvent, a non-volatile polar material is applied to the primed substrate from an aqueous liquid vehicle before coating with the topcoat. The polar material facilitates the removal of the topcoat from the primer by the stripping solvent, as is required for example when repainting aircraft. The polar material has sufficiently high affinity for the primer surface that it is not washed off the primer surface by water rinsing or by application of the topcoat paint.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: April 17, 2001
    Assignee: PRC-DeSoto International, Inc.
    Inventor: Michael Fowler
  • Patent number: 6214418
    Abstract: The present invention provides a thermosetting high solids coating composition comprising (A) a carboxyl-containing compound, (B) a polyepoxide, and (C) a copolymer prepared by polymerizing monomer components comprising (a) 30 to 50% by weight of vinyltrimethoxysilane and/or vinyltriethoxysilane, (b) 5 to 15% by weight of N-methylol(meth)acrylamide alkyl ether, and (c) 35 to 65% by weight of another polymerizable unsaturated monomer, and a method for forming a topcoat using said composition. The composition of the present invention is highly effective in forming a coating film excellent in resistance to both acids and scratch, and is superior in storage stability and recoat adhesion.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: April 10, 2001
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Hiroshi Igarashi, Hiroshi Kitagawa, Yasumasa Okumura, Masaaki Saika, Kenichi Nagai, Motoshi Yabuta
  • Patent number: 6200639
    Abstract: Coating composition suitable for multi-layer lacquerings, with a binder composition which comprises: A) 25 to 75 wt. % of carboxyl-functional (meth)acrylic copolymers and/or carboxyl-functional polyesters, the carboxyl functionality of which corresponds to an acid number of 15 to 300 mg KOH/g, B) 25 to 75 wt. % of epoxide-functionalized crosslinker resins, at least one of which is a (meth)acrylic copolymer which has been prepared co-using tert-butyl (meth)acrylate, C) 0 to 50 wt. % of polyols which have at least two hydroxyl functions in the molecule, D) 0 to 40 wt. % of components which crosslink with hydroxyl groups to form ethers, and/or of a crosslinking agent based on triazine, E) 0 to 40 wt. % of polyisocyanates, F) 0 to 50 wt. % of at least one organic polyanhydride with at least two cyclic carboxylic acid anhydride groups per molecule, G) 0 to 20 wt. % of reactive thinners with an epoxide function, H) 0 to 10 wt. % of one or more catalysts for the reaction of carboxyl and epoxide groups.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: March 13, 2001
    Assignee: Herberts GmbH., KG
    Inventors: Volker Duecoffre, Walter Schubert, Friedrich Herrmann, Carmen Flosbach, Claudia Leckebusch
  • Patent number: 6200678
    Abstract: Concrete strengthening members, particularly prestressing tendons such as strands of steel wire, are provided with a strongly adherent plastic coating which may be substantially impermeable for improved corrosion resistance, and/or which may have embedded therein abrasive or grit-form particles to provide improved bond with the concrete, and particularly to provide controllable bond transfer in prestressing tendons of the pre-tensioned type. The plastic coating preferably is applied electrostatically in powder form, and fusion bonded by heat. The abrasive can be applied by spraying during a viscous state of the heated resin, and can be varied as to size and spacing density so as to control the surface condition and the bonding effect. Fusion and curing heat may come from preheating of the member before application of the resin powder, which preferably is a heat curable, thermosetting epoxy. Coating thickness and grit application are readily variable to meet particular requirements.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 13, 2001
    Assignee: Florida Wire & Cable, Inc.
    Inventors: Frederick F. Hunt, Donald J. Gillette
  • Patent number: 6200650
    Abstract: Processes for drying primer coating compositions applied to a surface of a substrate are provided in which the primer coating composition, if a liquid or powder slurry, is exposed to low velocity air having a temperature ranging from about 10° C. to about 50° C. for a period of at least about 30 seconds to volatilize at least a portion of volatile material from the liquid primer coating composition. Next, infrared radiation and low velocity warm air are applied simultaneously to the primer coating composition (liquid, powder slurry or powder) for a period of at least about 1 minute during which the temperature of the substrate is increased at a rate ranging from about 0.2° C. per second to about 2° C. per second to achieve a peak substrate temperature of the substrate ranging from about 30° C. to about 120° C.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: March 13, 2001
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Donaldson J. Emch
  • Patent number: 6191225
    Abstract: A thermosetting composition comprising a co-reactable solid, particulate mixture of (a) polycarboxylic acid functional polymer, and (b) epoxy functional polymer, is described. The polycarboxylic acid functional polymer and epoxy functional polymer are each prepared by atom transfer radical polymerization and have well defined polymer chain architecture and polydispersity index of less than 2.5. The thermosetting compositions of the present invention have utility as powder coatings compositions.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: February 20, 2001
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Karen A. Barkac, Simion Coca, James R. Franks, Kurt A. Humbert, Paul H. Lamers, Roxalana L. Martin, James B. O'Dwyer, Kurt G. Olson, Daniela White
  • Patent number: 6187376
    Abstract: The invention provides a method for improving the adhesion of a repair coating to a coated substrate. It requires that at least one coating composition be applied to a substrate, the coating composition having (a) a film forming component with (i) a crosslinking component comprising one or more aminoplast resins, and (ii) one or more polymers having one or more functional groups which are reactive with the crosslinking component, (b) an adhesion improving additive comprising one or more compounds containing Sn(IV), (c) a catalyst for promoting a reaction between crosslinking agent (i) and one or more polymers (ii). The at least one coating composition is cured to provide a coated substrate and one or more repair coatings are applied to the coated substrate. In a preferred aspect of the invention, the one or more repair coatings applied are the same as the at least one coating composition.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: February 13, 2001
    Assignee: BASF Corporation
    Inventors: Donald H. Campbell, Michael A. Gessner
  • Patent number: 6180181
    Abstract: The present invention provides methods for forming composite coatings on substrates including the steps of: (A) applying an aqueous primary coating composition to at least a portion of a surface of a substrate, the primary coating composition including: (1) at least one thermosettable dispersion including polymeric microparticles having functionality adapted to react with a crosslinking material, the microparticles including: (a) at least one acid functional reaction product of ethylenically unsaturated monomers; and (b) at least one hydrophobic polymer having a number average molecular weight of at least about 500; and (2) at least one crosslinking material, to form a substantially uncured primary coating thereon; (B) applying a secondary coating composition to at least a portion of the primary coating formed in step (A) without substantially curing the primary coating to form a substantially uncured secondary coating thereon; and (C) applying a clear coating composition to at least a portion of the secondar
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: January 30, 2001
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Christopher A. Verardi, Dennis L. Faler, Marvis E. Hartman, Nicholas J. Crano, Rodger G. Temple, Victoria A. Trettel
  • Patent number: 6174569
    Abstract: The invention relates to three-layer metal pipe coating compositions based on a powder primer, on a thermoplastic hard adhesive and on a polyolefin cladding. The powder primer contains epoxidized novolak resins, phenolic crosslinking agents and fillers based on crystalline silicic acid modifications. The invention likewise relates to a process for the exterior coating of metal pipes by a three-layer method, in which the powder primer described is applied to the metal pipe, a thermoplastic hard adhesive is applied to the powder primer, and subsequently a polyolefin cladding is applied.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: January 16, 2001
    Assignee: BASF Coatings AG
    Inventors: Werner Blömer, Udo Reiter, Josef Rademacher
  • Patent number: 6159549
    Abstract: The invention provides a novel coating composition which includes: (a) a polyester-based resin component, (b) an epoxy component, (c) a crosslinker component, (d) a catalyst component, and (e) a diluent component. The polyester-based resin component includes at least one phosphatized polyester resin; and the epoxy component includes at least one phosphatized epoxy resin. These coating compositions are particularly suitable as primers, and especially as primers for use used in conjunction with coating composition which include fluorocarbon polymers. Also provided is a method of providing a substrate with a multilayer coating system. This method includes: (a) applying at least one layer of the aforementioned novel primer onto a substrate; and (b) applying at least one layer of a second coating composition over the primed substrate of step (a).
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: December 12, 2000
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Padmanabhan Sundararaman, Jamel S. Richardson, Robert A. Montague, Trang D. Tran
  • Patent number: 6129989
    Abstract: A process is claimed for producing a multilayer coating on a substrate surface, in which(A) an aqueous coating composition comprising as film-forming agent an aqueous polymer dispersion is applied as basecoat composition to a substrate surface coated with a customary primer surfacer,(B) a suitable transparent topcoat composition is applied to the basecoat thus obtained, and(C) the basecoat is baked together with the topcoat,wherein the basecoat composition comprises an aqueous polymer dispersion comprising(i) an acrylate polymer based on from 30 to 60% by weight of C.sub.1 -C.sub.8 -alkyl (meth)acrylate monomers, from 30 to 60% by weight of vinyl-aromatic monomers and from 0.5 to 10% by weight of (meth)acrylic acid, and(ii) a thickener, which does not have an associative action, comprising an acrylate copolymer based on (C.sub.1 -C.sub.6)-alkyl (meth)acrylate and (meth)acrylic acid.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: October 10, 2000
    Assignee: BASF Coatings AG
    Inventor: Gotz-Ekkehard Sapper
  • Patent number: 6110536
    Abstract: A method is provided for treating anti-corrosive steel surfaces, such an epoxy-coated ship's hull, in an environmentally improved manner, with an epoxy-silicone-adhesive paint, as a tiecoat, to provide for the subsequent application of silicone foul release coatings.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: August 29, 2000
    Assignee: General Electric Company
    Inventor: Owen Maynard Harblin
  • Patent number: 6106899
    Abstract: A method for bonding a resin which has a high glass transition temperature but low affinity to copper surfaces with a copper surface with sufficient adhesive strength. The method comprises coating the copper surfaces with an aqueous solution containing at least 0.05% of aminotetrazole or an aminotetrazole derivative, or an aqueous solution containing at least 0.05% of aminotetrazole or an aminotetrazole derivative and at least 0.1% of aminotriazole or an aminotriazole derivative.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: August 22, 2000
    Assignee: MEC Company Limited
    Inventors: Toshiko Nakagawa, Ryo Ogushi