With Posttreatment Of Coating (e.g., Heat Treatment, Washing, Drying, Etc.) Patents (Class 204/507)
  • Patent number: 10781529
    Abstract: Anodizing techniques for providing highly opaque colorized anodic films are described. According to some embodiments, the methods involve depositing a pigment having a particle diameter of about 20 nanometers or greater into an anodic film. Additionally or alternatively, a barrier layer smoothing operation is used to flatten an interface between the anodic film and underlying metal substrate so as to maximize light reflection off the interface, thereby maximizing light reflected off the pigment that is deposited within pores of the anodic film. The resulting anodic films have an opaque or saturated colored appearance. In some embodiments, the methods involve increasing a thickness of a non-porous barrier layer of the anodic film so as to create thin film interference effects that can add a particular hue to the anodic film. The methods can be used form cosmetically appealing coatings for consumer products, such as housings for electronic products.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: September 22, 2020
    Assignee: APPLE INC.
    Inventors: Masashige Tatebe, Takahiro Oshima, Jody R. Akana, James A. Curran, Yutaka Nakagishi, Junichi Katayama, Kenji Hara, Yasuhiro Ito, Ayumi Hongou
  • Publication number: 20150017447
    Abstract: The present invention is directed to a coated substrate comprising: A) an electroconductive composite substrate comprising a resinous matrix reinforced with fibers, and B) a cured coating layer electrophoretically deposited on at least at least a portion of a surface of the substrate, wherein the cured coating layer is deposited from a curable, electrodepositable coating composition comprising: (1) a resin component containing an active hydrogen-containing, cationic or anionic resin comprising an acrylic, polyester, polyurethane and/or polyepoxide polymer; and (2) a curing agent. The present invention is further directed to a process for coating a plastic, electroconductive substrate comprising electrophoretically depositing on the substrate the curable, electrodepositable coating composition described above, and heating the coated substrate to a temperature less than 250° F. for a time sufficient to cure the electrodeposited coating on the substrate.
    Type: Application
    Filed: July 12, 2013
    Publication date: January 15, 2015
    Inventors: SCOTT MORAVEK, ROBIN M. PEFFER, MICHAEL A. MAYO
  • Publication number: 20140313574
    Abstract: Disclosed are methods for forming nanoparticle films using electrophoretic deposition. The methods comprise exposing a substrate to a solution, the solution comprising substantially dispersed nanoparticles, an organic solvent, and a polymer characterized by a backbone comprising Si—O groups. The methods further comprise applying an electric field to the solution, whereby a nanoparticle film is deposited on the substrate. Suitable polymers include polysiloxanes, polysilsesquioxanes and polysilicates. Coated glass windows and methods of forming the coated glass windows using the solutions are also disclosed.
    Type: Application
    Filed: January 14, 2014
    Publication date: October 23, 2014
    Applicant: SOUTH DAKOTA STATE UNIVERSITY
    Inventors: Braden Bills, Nathan Morris, Qi Hua Fan, Mukul Dubey, David Galipeau
  • Patent number: 8845873
    Abstract: Disclosed herein are electrodepositable coating compositions comprising a film forming resin and a textured additive, wherein the textured additive has a density (specific gravity) of no more than 4.5 g/cc and a melting point greater than the curing temperature of the electrodepositable coating composition. Also described are coated substrates having a cured coating layer comprising the electrodepositable coating composition, wherein the cured film layer has a texture of at least 250?-in as measured by a profilometer at conventional cured film thicknesses.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: September 30, 2014
    Assignee: PPG Industries Ohio, Inc.
    Inventors: James E. Poole, Richard F. Syput, Roy E. Dean, Michael J. Pawlik, Edward E. Abbott, Joseph T. Valko
  • Patent number: 8840768
    Abstract: A preparation method for molecular recognition sensor by electrodeposition is provided. The preparation method is as following: forming molecularly imprinted polymeric micelles by self-assembly of ionic type photosensitive copolymers; forming a film on the surface of an electrode by electrodepositing the molecularly imprinted polymeric micelles at a constant potential; crosslinking the electrodeposited micellar film via ultraviolet light irradiation; extracting the template molecules from the crosslinked film to obtain electrode modified by the molecularly imprinted polymeric micellar film; and connecting the modified electrode with a sensor device and a computer to construct a molecular recognition sensing system capable of specifically detecting the template molecules.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: September 23, 2014
    Assignee: Jiangnan University
    Inventors: Xiaoya Liu, Yiqun Yang, Chenglin Yi, Jing Luo, Haiqiang Wu, Sisi Jiang, Baoqing Wang, Jinqiang Jiang, Ren Liu, Shengwen Zhang, Jing Xu
  • Publication number: 20130306477
    Abstract: Disclosed herein are cationic electrodepositable coating compositions that are capable of providing cured coatings of low gloss.
    Type: Application
    Filed: May 16, 2012
    Publication date: November 21, 2013
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Lorraine Hsu, Kelly Moore, Michael Sandala
  • Publication number: 20130301769
    Abstract: A process for producing technetium-99m from a molybdenum-100 metal powder, comprising the steps of: (i) irradiating in a substantially oxygen-free environment, a hardened sintered target plate coated with a Mo-100 metal, with protons produced by a cyclotron; (ii) dissolving molybdenum ions and technetium ions from the irradiated target plate with an H2O2 solution to form an oxide solution; (iv) raising the pH of the oxide solution to about 14; (v) flowing the pH-adjusted oxide solution through a resin column to immobilize K[TcO4] ions thereon and to elute K2[MoO4] ions therefrom; (vi) eluting the bound K[TcO4] ions from the resin column; (vii) flowing the eluted K[TcO4] ions through an alumina column to immobilize K[TcO4] ions thereon; (viii) washing the immobilized K[TcO4] ions with water; (ix) eluting the immobilized K[TcO4] ions with a saline solution; and (x) recovering the eluted Na[TcO4] ions.
    Type: Application
    Filed: April 25, 2013
    Publication date: November 14, 2013
    Applicant: TRIUMF
    Inventor: TRIUMF
  • Patent number: 8574414
    Abstract: A method includes (a) contacting at least a portion of a substrate material with a solution comprising a source of copper, wherein the solution is essentially free of a source of a group IIIB metal and a source of a group IVB metal; and (b) after step (a), contacting at least a portion of the substrate with an electrodepositable coating composition comprising (i) a film-forming resin and (ii) a source of yttrium.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: November 5, 2013
    Assignee: PPG Industries Ohio, Inc
    Inventors: Terri Ziegler, Mark McMillen
  • Publication number: 20130156678
    Abstract: Provided are methods for forming graphene or functionalized graphene thin films. Also provided are graphene and functionalized graphene thin films formed by the methods. For example, electrophoretic deposition methods and stamping methods are used. Defect-free thin films can be formed. Patterned films can be formed. The methods can provide conformal coatings on non-planar substrates.
    Type: Application
    Filed: June 16, 2011
    Publication date: June 20, 2013
    Inventors: Sarbajit Banerjee, Vincent Lee, Luisa Whitaker
  • Publication number: 20130084425
    Abstract: Disclosed herein are electrodepositable coating compositions comprising a film forming resin and a textured additive, wherein the textured additive has a density (specific gravity) of no more than 4.5 g/cc and a melting point greater than the curing temperature of the electrodepositable coating composition. Also described are coated substrates having a cured coating layer comprising the electrodepositable coating composition, wherein the cured film layer has a texture of at least 250?-in as measured by a profilometer at conventional cured film thicknesses.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 4, 2013
    Applicant: PPG Industries Ohio, Inc.
    Inventors: James E. Poole, Richard F. Syput, Roy E. Dean, Michael J. Pawlik, Edward E. Abbott
  • Publication number: 20120308884
    Abstract: Graphene is formed with a practically uniform thickness on an uneven object. The object is immersed in a graphene oxide solution, and then taken out of the solution and dried; alternatively, the object and an electrode are immersed therein and voltage is applied between the electrode and the object used as an anode. Graphene oxide is negatively charged, and thus is drawn to and deposited on a surface of the object, with a practically uniform thickness. After that, the object is heated in vacuum or a reducing atmosphere, so that the graphene oxide is reduced to be graphene. In this manner, a graphene layer with a practically uniform thickness can be formed even on a surface of the uneven object.
    Type: Application
    Filed: May 30, 2012
    Publication date: December 6, 2012
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Teppei Oguni, Takeshi Osada, Toshihiko Takeuchi, Kuniharu Nomoto
  • Patent number: 8236157
    Abstract: A pigment dispersing resin is disclosed along with pigment dispersion, electrodepositable coating compositions using the pigment dispersing resin, and methods for applying the electrodepositable coating composition. The pigment dispersing resin consists essentially of the carboxylic acid salt of an aminated bisphenol epoxy resin and an alkoxylated styrenated phenol. Pigment dispersions made from the dispersing resin are especially useful for forming low or no volatile organic content electrocoating baths.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: August 7, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventor: Taddesse Gebregiorgis
  • Patent number: 8192602
    Abstract: The invention relates to a method for the preparation of stable solutions of charged inorganic-organic polymers, in which the hydrolysis-condensation reactions of metal alkoxides in alcoholic solutions are controlled using a condensation inhibitor that forms protons. The invention further relates to substrates coated by sol-gel electrophoretic deposition (EPD) with these solutions, and to metal oxide coated substrates obtained therefrom.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: June 5, 2012
    Assignee: 3GSolar Photovoltaics Ltd.
    Inventors: Arie Zaban, Larissa Grinis, Asher Ofir
  • Publication number: 20120024703
    Abstract: A curable, electrodepositable coating composition is provided, comprising: (1) a resin component containing an active hydrogen-containing, cationic salt group-containing resin comprising an acrylic, polyester, polyurethane and/or polyepoxide polymer; (2) an at least partially capped polyisocyanate curing agent; and (3) an additive composition comprising 2-mercaptobenzothiazole dispersed in a polymeric component. Also provided are processes for coating a substrate using the above composition, and methods of preparing the composition.
    Type: Application
    Filed: July 28, 2010
    Publication date: February 2, 2012
    Applicant: PPG Industries Ohio, Inc.
    Inventor: James E. Poole
  • Patent number: 7862851
    Abstract: A process for coating electrically conductive substrates by (1) applying an electrocoat film to an electrically conductive substrate and curing it to give an electrocoat and then (2) applying a layer of a pulverulent coating material to the electrocoat and curing it to give a powder coat or alternatively (1) applying an electrocoat film to an electrically conductive substrate and drying it without fully curing it, (2) applying a layer of a pulverulent coating material to the dried electrocoat film(s) and (3) jointly curing the dried electrocoat film and the layer of the pulverulent coating material to give the electrocoat and the powder coat wherein the pulverulent coating material comprises (A) at least one epoxy resin having a melting point, melting range or glass transition temperature>30° C., (B) at least one carboxyl-containing polyester resin having a melting point, melting range or glass transition temperature>30° C.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: January 4, 2011
    Assignee: BASF Coatings AG
    Inventors: Heinrich Wonnemann, Lars Hof, Werner Blömer
  • Publication number: 20100279095
    Abstract: A process for forming a composite film on a substrate comprises providing a suspension comprising an ionised polymer and functionalised carbon nanotubes in a solvent, at least partially immersing the substrate and a counterelectrode in the suspension, and applying a voltage between the substrate and the counterelectrode so as to form the composite film on the substrate. Electrical charges on the polymer and on the nanotubes have the same sign and the voltage is applied such that the charge on the substrate has the opposite sign to the charge on the polymer and the nanotubes.
    Type: Application
    Filed: October 17, 2007
    Publication date: November 4, 2010
    Applicant: AGENCY FOR SCINECE TECNOLOGY AND RESEARCH
    Inventors: Xu Li, Chaobin He, Decheng Wu, Ye Liu
  • Publication number: 20100261055
    Abstract: A method for treating a cathode electrode assembly. The method includes providing an electrode including iron disulfide and contacting the electrode with water to remove impurities from the electrode. The electrode may then be dried under various conditions. The moisture content of the electrode after drying may be less than about 600 ppm.
    Type: Application
    Filed: April 14, 2009
    Publication date: October 14, 2010
    Inventors: Zhiping Jiang, William L. Bowden, Phyllis Bowden, Rimma Sirotina, Leigh Marie Friguglietti, Michael Pozin
  • Patent number: 7632386
    Abstract: A process for producing a CED coating by cathodic electrodeposition of a coating on an electrically conductive substrate in a CED coating bath and thermal cross-linking of the CED coating film obtained, wherein before thermal cross-linking outside of the CED coating bath, the CED coating film is brought into contact with an aqueous preparation of at least one metal compound, wherein the at least one metal compound is a compound of a metal with an oxidation number of +2 or higher and is selected from the group consisting of compounds containing cations of the metal, compounds forming cations of the metal in aqueous medium, compounds containing cations containing the metal, compounds forming cations containing the metal in aqueous medium, compounds comprising outwardly neutral complexes of the metal, colloidal oxide of the metal and colloidal hydroxide of the metal, wherein the metal itself is selected from the group consisting of metals having atomic numbers of 20 to 83 with the express exclusion of chromium,
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: December 15, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Klausjoerg Klein, Gabriele Buettner
  • Publication number: 20090114275
    Abstract: The invention relates to a two-step method for production of low temperature mechanically stable and electrically efficient nanoporous electrodes, in particular titania nanoporous electrodes, for photoelectrochemical applications. The method of the invention comprises electrophoretic deposition (EPD) of nanosize titania crystals from a stable suspension containing thereof on a conductive substrate, and formation of mechanical and electrical contact between them. The invention further relates to nanoporous electrodes obtained by this method and to dye sensitized solar cells (DSSCs) fabricated therefrom.
    Type: Application
    Filed: August 3, 2006
    Publication date: May 7, 2009
    Applicant: Barilan University
    Inventors: Arie Zaban, Larissa Grinis, Asher Ofir
  • Publication number: 20090014623
    Abstract: Methods for electrophoretic deposition of molds for casting processes are provided. Electrophoresis is used to deposit very fine particles on a template from a slurry comprising an ionic dispersion agent. The resulting green shell is then dried and sintered to form a mold.
    Type: Application
    Filed: January 7, 2005
    Publication date: January 15, 2009
    Inventors: Douglas M. Matson, Rakesh Venkatesh, John MacChesney, Thomas Stockert
  • Patent number: 7211182
    Abstract: A process for the production of a CED (cathodic electrodeposition) coating with improved adhesion towards subsequent layers by cathodic electrodeposition of a coating layer of a CED coating composition onto an electrically conductive substrate and thermal curing by baking in an indirectly heated circulating air oven operated with a proportion of fresh air in the circulating air of the oven of 0 to 20 vol. %, wherein the CED coating composition used contains at least one water-soluble metal nitrate corresponding to a quantity of 1 to 10 mmol of nitrate per 100 g of resin solids content, wherein the metal is selected from the group consisting of metals of atomic numbers 20 to 83, with the exception of chromium, arsenic, rubidium, ruthenium, rhodium, palladium, cadmium, antimony, caesium, osmium, iridium, platinum, mercury, thallium and lead, and wherein at most 50 area-% of the CED-coated substrate surface are rinsed with water prior to thermal curing.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: May 1, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Horst Lehmann, Klausjoerg Klein, Rudolf Schipfer
  • Patent number: 7138044
    Abstract: Aqueous compositions containing polymerizable components and a water incompatible catalyst for the polymerization reaction sorbed onto an inorganic particulate carrier, polymers produced thereby and articles coated with said polymers are provided. The invention also relates to water incompatible catalyst sorbed onto on an inorganic particulate carrier for aqueous coatings and the coatings produced by reactions catalyzed with the water incompatible catalyst sorbed onto an inorganic particulate carrier in an aqueous matrix.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: November 21, 2006
    Assignee: Arkema Inc.
    Inventor: William D. Honnick
  • Patent number: 6814845
    Abstract: Improved biosensors are provided having excellent selectivity and stability properties, together with methods of preparing the biosensors. A preferred biosensor includes an electrode (12) having enzyme (16) deposited thereon together with a layer of electropolymerized polymer (18) intermingled with the enzyme (16); a crosslinked silane film (20) is applied over the polymer layer (18), and a final coating (22) of polyurethane is formed over the film (20). In preparative procedures, the enzyme (16) is electrodeposited using an aqueous enzyme solution containing a nonionic surfactant at a concentration level preferably in excess of the critical micelle concentration of the surfactant. In the case of a glucose sensor, the polymer layer (18) is preferably polyphenol, while the silane film is crosslinked (3-aminopropyl) trimethoxysilane. The preferred biosensors have greatly enhanced selectivity stabilities.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: November 9, 2004
    Assignee: University of Kansas
    Inventors: George S. Wilson, Xiaohong Chen, Norio Matsumoto, Yibai Hu
  • Patent number: 6790329
    Abstract: It is an object of the present invention to provide a method of forming a coating film by which a coating film excellent in weathering resistance, light degradation resistance, smoothness and the like can be formed on the outer panel portion of an article to be coated such as a car, and a coating film excellent in rust prevention can be formed on the inner panel portion (bag-structured portion) of the article to be coated, with the interface between the outer and inner panel portions of the article being excellent in rust prevention and finish as well, and by which resources saving and coating cost reduction can be expected.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: September 14, 2004
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Hiroyuki Sakamoto, Noriyuki Tsuboniwa, Motoki Fujii, Kazuo Morichika, Ichiro Kawakami
  • Patent number: 6736950
    Abstract: Method of electro-dipcoating while reducing edge migration on stoving by 1) electro-deposition of a coating layer from an electrically depositable coating composition containing a heat-curable binder system having a content of olefinically unsaturated double bonds that are radically polymerisable under UV irradiation, on an electrically conductive substrate having edges, 2) UV irradiation of at least part of the electrically deposited coating layer, avoiding complete curing, 3) complete curing of the electrically deposited coating layer by stoving.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: May 18, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Klausjörg Klein, Walter Kühhiri, Siegfried Kuphal
  • Publication number: 20040069636
    Abstract: A method of reproducibly manufacturing circuit carriers with very fine circuit structures and an electrophoretic varnish to be applied in this method are described in which a dielectric substrate comprising a base metal surface is provide, a varnish layer is applied onto the substrate surface electrodepositing the electrophoretic varnish, thereafter the varnish layer is ablated in at least parts of the regions that do not correspond to the metal pattern to be formed by means of ultraviolet radiation, the base metal surface being laid bare, and finally the bare base metal surface is etched.
    Type: Application
    Filed: August 27, 2003
    Publication date: April 15, 2004
    Inventors: Heinrich Meyer, Udo Grieser
  • Patent number: 6713587
    Abstract: The present invention relates to an electrodepositable coating composition having a resinous phase dispersed in an aqueous medium. The resinous phase includes (a) an ungelled, active hydrogen-containing, ionic salt group-containing resin; and (b) a curing agent reactive with the active hydrogens of the resin (a). The resinous phase has a covalently bonded halogen content based on total weight of resin solids present in the resinous phase such that when the composition is electrodeposited and cured, the cured film passes flame resistance testing in accordance with IPC-TM-650, and has a dielectric constant of less than or equal to 3.50. The invention also is directed to a method for forming a dielectric coating on an electroconductive substrate using the electrodepositable coating composition, as well as to a substrate coated with the electrodepositable composition.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: March 30, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Gregory J. McCollum, Thomas C. Moriarity, Kevin C. Olson, Michael G. Sandala, Alan E. Wang, Craig A. Wilson, Steven R. Zawacky
  • Patent number: 6607645
    Abstract: The present invention provides methods for producing hollow ceramic membranes by electrophoretic deposition. The hollow ceramic membranes may have a small cross-sectional area of about 1.0×10−5 mm2 to about 25 mm2. The cross-sectional configuration of the hollow ceramic membranes may be any geometry such as circular, square, rectangular, triangular or polygonal. The hollow ceramic membranes produced by the methods of the present invention may have multiple layers but always the innermost layer, or the first deposited layer is porous and made by electrophoretic deposition. Subsequent layers may be porous or non porous and deposited before or after sintering the first layer. If it is deposited after sintering, it may require additional sintering steps. Additional layers may be deposited by further electrophoretic deposition, sol-gel coating, dip coating, vacuum casting, brushing, spraying or other known techniques.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: August 19, 2003
    Assignee: Alberta Research Council Inc.
    Inventor: Partha Sarkar
  • Publication number: 20030150730
    Abstract: Novel electrodeposition coating material preparable by (i) melting at least one self-crosslinking binder, or (ii) separately melting at least one externally crosslinking binder and at least one crosslinking agent and supplying the melts to a mixing unit in which the melts are homogenized, introducing the resultant melt into an aqueous medium, and emulsifying it therein; and the use of the novel electrodeposition coating material to coat electrically conductive substrates.
    Type: Application
    Filed: January 29, 2003
    Publication date: August 14, 2003
    Inventors: Michael Hartung, Karl-Heinz Grosse-Brinkhaus, Reinhard Polke, Heiko Wolf, Michael Stang
  • Patent number: 6589411
    Abstract: An electrodeposition coating process consisting of the successive process steps: 1) electrodeposition of a coating layer of an electrodeposition coating agent that contains a thermally curable binder system onto the surface of an electrically conductive substrate and 2) thermal curing of the electrodeposited coating layer by irradiation with near infrared radiation.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: July 8, 2003
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Matthias Kimpel, Martin Wulf, Oliver Reis, Gerhard Pech, Christoph Moelzer
  • Publication number: 20030111347
    Abstract: A process for producing multicoat color and/or effect finishes on motor vehicle bodies or parts thereof (substrates), in which (I) a pigmented powder coating material is applied to the substrates, (II) the resulting powder coating film is partly or fully cured, (III) the powder coating film or powder coating is overcoated with a solid-color topcoat, with a basecoat and a clearcoat, or with a clearcoat, after which (IV) the resulting films are cured in each case individually or together with other films (wet-on-wet technique), wherein said powder coating material (A) comprises at least one carboxyl-containing polyester and (B) comprises at least one glycidyl ester of an aromatic or of a saturated or unsaturated cycloaliphatic dicarboxylic acid and/or at least one N,N,N′,N′-tetrakis(beta-hydroxyalkyl)alkanedicarboxamide, or (A) comprises at least one hydroxyl-containing polyester and (B) comprises at least one internally blocked uretdione of a diisocyanate.
    Type: Application
    Filed: September 24, 2002
    Publication date: June 19, 2003
    Inventors: Heinrich Wonnemann, Berthold Austrup, Christopher Hilger, Susanne Piontek
  • Publication number: 20030111356
    Abstract: The present invention provides methods for synthesizing arrays of polymers. A barrier to a reaction is applied to select features of the array thereby limiting the reaction to the remaining features.
    Type: Application
    Filed: December 17, 2002
    Publication date: June 19, 2003
    Inventor: Michael Paul Strathmann
  • Publication number: 20030102216
    Abstract: A process of coating the surface of articles made of glass pieces assembled in a came to minimize breakage of glass during application and hardening of the coating The process includes the steps of preprocessing the article, electrodepositing the coating on the article, and hardening the electrodeposited and coated article glass step-by-step.
    Type: Application
    Filed: November 27, 2001
    Publication date: June 5, 2003
    Inventor: Kwang Soon Kim
  • Publication number: 20030102217
    Abstract: The present invention provides a method for forming a multilayer coating film, comprising: applying a colored cationic electrodeposition coating composition (A) to a metal substrate by electrodeposition; applying a bright pigment-containing clear coating composition (B) to the electrodeposition coating, which is either uncured or thermally cured; and then curing the uncured electrodeposition coating and the clear coating, or the clear coating.
    Type: Application
    Filed: August 26, 2002
    Publication date: June 5, 2003
    Applicant: KANSAI PAINT CO., LTD
    Inventors: Naoko Kasahara, Takeo Ohtani, Tadayoshi Hiraki
  • Publication number: 20020168551
    Abstract: Processes for forming a coating on electroconductive flat blanks having two major surfaces and sheared edges are provided. Also provided is a process for forming a multi-composite coating on a pre-sheared, electroconductive, flat blank having two major surfaces and sheared edges. Methods for forming and coating metal blanks are also provided. The present invention further provides a pre-sheared, flat electroconductive blank having two major surfaces and coated with a multi-layer composite coating composition on one major surface. The present invention also provides a method for coating a continuous metal strip, optionally, thereafter forming a coated blank therefrom, and, optionally, applying a second coating to the blank.
    Type: Application
    Filed: March 2, 2001
    Publication date: November 14, 2002
    Inventors: Donald D. Emmonds, Catharine A. Palmer, Linda K. Anderson, Robin M. Peffer, Donald W. Boyd, Paul R. Kerr
  • Patent number: 6475722
    Abstract: The present invention discloses methodologies for the treatment of the surface(s) of DNA processing devices so as to greatly reduce DNA adsorption to the surface(s) exposed to the DNA-containing media. These aforementioned surface treatments include: (i) the deposition of thin-films of silicon-rich, silicon nitride and of hydroxyl-containing,low-temperature silicon oxide and (ii) the washing of surface with a basic, oxidative wash solution. The present invention also discloses the fabrication of DNA processing devices utilizing surface(s) treated by the methods described above. Such DNA processing devices include, for example, miniaturized electrophoresis and other DNA separation devices, miniaturized PCR reactors, and the like. The present invention further discloses methodologies for testing the degree of DNA adherence to a given surface. Additionally, the methodologies and devices of the present invention are also applicable to the processing of nucleic acids, in generally.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: November 5, 2002
    Assignee: CuraGen Corporation
    Inventor: Steven A. Henck
  • Patent number: 6471842
    Abstract: In one aspect, the invention encompasses a method of fabricating a display screen. Phosphor molecules are electrophoretically deposited onto a substrate in a first solution having a first hydroxide ion concentration. The deposited phosphor molecules are then rinsed with a second solution having an hydroxide ion concentration greater than the first hydroxide ion concentration. In another aspect, the invention encompasses a method of depositing phosphor molecules over selected regions of a substrate. Conductive regions are formed over portions of a substrate while non-conductive regions are left over other portions of the substrate. Phosphor molecules are electrophoretically deposited onto the conductive regions of the substrate in a first solution having a first hydroxide ion concentration. The substrate is then rinsed with a second solution having a second hydroxide ion concentration greater than the first hydroxide ion concentration. After the rinsing, the deposited phosphor molecules are dried.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: October 29, 2002
    Assignee: Micron Technology, Inc.
    Inventor: Jianping P. Yang
  • Publication number: 20020043464
    Abstract: A coating film-forming method comprising a first step which comprises coating a cationic eletrodeposition coating composition (A) containing an electrically conducting agent, followed by washing with water and heat curing and drying to form a cured cationic electrodeposition coating film; a second step which comprises coating such an anionic electrodeposition coating composition (B) that a coating film formed therefrom has a chromatic color or a white color as an achromatic color onto the cured cationic electrodeposition coating film, followed by washing with water, and removing water by preheating or air blowing to form a non-cured anionic electrodeposition coating film; and a third step which comprises coating a topcoating composition (C) thereonto to form a non-cured topcoating film, and heat curing and drying a resulting laminated coating film simultaneously.
    Type: Application
    Filed: August 23, 2001
    Publication date: April 18, 2002
    Inventors: Shinji Miyatake, Akira Tominaga, Hidehiko Haneishi
  • Patent number: 6309527
    Abstract: The invention relates to thermosetting resinous binder compositions comprising a cationic resin (1) and a cross-linking agent (2), wherein the cationic resin (1) is an epoxy resin/amine adduct with on average more than one primary amine group, and the cross-linking agent (2) is a polyketone with on average more than one 1,4-dioxobutylene groups in the backbone. The invention also relates to the preparation of these compositions, and their use in general and in CED more particularly.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: October 30, 2001
    Inventors: Antonius Augustinus Broekhuis, Jeffrey Roy Van Hek, Petrus Gerardus Kooijmans
  • Patent number: 6211584
    Abstract: A motor component covered with a novel electrocoating that fails to detrimentally affects magnetic memory medium provided in a hard disc or other is provided. With enhanced edge covering ratio, an improved insulation coating is easily formed on the motor component. An insulation coating is electrodeposited on an Nd—Fe—B system plastic magnet, a stacked core of silicon steel, a die-cast motor base of aluminum or other motor component through cationic electrodeposition. The electrodeposition paint for use includes 12 ppm or less of tin content in the aqueous solution, 0.5% or less by weight of carbon black content in the aqueous solution, and, instead, has titanium dioxide and/or silicon dioxide added to pigment. The electrodeposited insulation coating, which has a specified thickness, is heated to temperatures ranging between 40° C. and 90° C. After such preliminary curing, temperatures are again heated to between 150° C. and 190° C.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: April 3, 2001
    Assignee: Daido Tokushuko
    Inventors: Manabu Kurosawa, Takeshi Anbo, Tatsumasa Yamada
  • Patent number: 6203681
    Abstract: In one aspect, the invention encompasses a method of fabricating a display screen. Phosphor molecules are electrophoretically deposited onto a substrate in a first solution having a first hydroxide ion concentration. The deposited phosphor molecules are then rinsed with second solution having an hydroxide ion concentration greater than the first hydroxide ion concentration. In another aspect, the invention encompasses a method of depositing phosphor molecules over selected regions of a substrate. Conductive regions are formed over portions of a substrate while non-conductive regions are left over other portions of the substrate. Phosphor molecules are electrophoretically deposited onto the conductive regions of the substrate in a first solution having a first hydroxide ion concentration. The substrate is then rinsed with a second solution having a second hydroxide ion concentration. The second hydroxide ion concentration is greater than the first hydroxide ion concentration.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: March 20, 2001
    Assignee: Micron Technology, Inc.
    Inventor: Jianping P. Yang
  • Patent number: 6113764
    Abstract: A process for drying a liquid electrodeposited coating composition applied to a metal substrate is provided. Infrared radiation and warm air are applied simultaneously to the electrodeposited coating composition for a period of at least about 1 minute, the velocity of the air at the surface of the electrodeposited coating composition being less than about 4 meters per second. The temperature of the metal substrate is increased at a rate ranging from about 0.25.degree. C. per second to about 2.degree. C. per second to achieve a peak metal temperature of the substrate ranging from about 35.degree. C. to about 140.degree. C. Infrared radiation and hot air are applied simultaneously to the electrodeposited coating composition for a period of at least about 2 minutes, during which the temperature of the metal substrate is increased at a rate ranging from about 0.2.degree. C. per second to about 1.5.degree. C. per second to achieve a peak metal temperature ranging from about 160.degree. C. to about 215.degree. C.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: September 5, 2000
    Assignee: PPG Industries Ohio, Inc.
    Inventor: Donaldson J. Emch
  • Patent number: 6093299
    Abstract: This invention relates to a stove-enamel coating medium based on at least one binder vehicle selected from amino(meth)acrylate resins and/or epoxide-amine addition products comprising cationic groups and/or groups which can be converted into cationic groups. The binder vehicle additionally comprises cyclic carbonate groups and/or at least one crosslinking agent which comprises cyclic carbonate groups is present, and the binder vehicle also contains secondary amino groups and/or hydroxyl groups.
    Type: Grant
    Filed: February 10, 1998
    Date of Patent: July 25, 2000
    Assignee: Herberts Gesellschaft Mit Beschrankter Haftung
    Inventors: Joachim Blum, Klausjorg Klein, Hans-Peter Patzschke, Bettina Vogt-Birnbrich
  • Patent number: 6090253
    Abstract: A work is dipped in electrodeposition paint, and then the work is baked. Between the dipping step and baking step of the work, there is provided a step for spraying hot water mist to the work. It is preferable that the temperature of the hot water mist is in a range equal to or higher than 40.degree. C. and lower than 100.degree. C. Water or vapor may be used instead of the hot water mist.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: July 18, 2000
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kenshichiro Shima, Takashi Arakawa, Hirokazu Sugiyama
  • Patent number: 6054033
    Abstract: A cathodic electrodeposition paint composition for one or two coats finish comprises (a) an amine-modified polyphenol epoxy resin, (b) an acrylic copolymer having ionizable groups, and (c) resin particles having a particle size of less than 1.0 .mu.m comprised of a core of gelled hydrophobic resin and a shell layer of amino group-containing hydrophilic resin. Components (a), (b) and (c) as well as blocked polyisocyanate crosslinker are dispersed in an aqueous medium containing a neutralizing agent. The paint composition is effective for diminishing the occurrence of stripe-like recessed patterns in the finished steel substrate.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: April 25, 2000
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Fumio Hunakoshi, Toshiyuki Ishii
  • Patent number: 6027626
    Abstract: A motor component covered with a novel electrocoating that fails to detrimentally affects magnetic memory medium provided in a hard disc or other is provided. With enhanced edge covering ratio, an improved insulation coating is easily formed on the motor component. An insulation coating is electrodeposited on an Nd--Fe--B system plastic magnet, a stacked core of silicon steel, a die-cast motor base of aluminum or other motor component through cationic electrodeposition. The electrodeposition paint for use includes 12 ppm or less of tin content in the aqueous solution, 0.5% or less by weight of carbon black content in the aqueous solution, and, instead, has titanium dioxide and/or silicon dioxide added to pigment. The electrodeposited insulation coating, which has a specified thickness, is heated to temperatures ranging between 40.degree. C. and 90.degree. C. After such preliminary curing, temperatures are again heated to between 150.degree. C. and 190.degree. C.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: February 22, 2000
    Assignee: Daido Tokushuko
    Inventors: Manabu Kurosawa, Takeshi Anpo, Tatsumasa Yamada
  • Patent number: 6004716
    Abstract: A method of forming an electrophotographic transfer image is disclosed which provides color images free from color shear, by which toner images are completely transferred onto a receiving material without being accompanied by degradation of image quality upon the transfer, and in which a light-sensitive element can be repeatedly used without throwing the light-sensitive element away after using it only once.A method and apparatus for forming an electrophotographic transfer image comprising forming a transfer layer containing a thermoplastic resin on the surface of an electrophotographic light-sensitive element which surface has releasability in the apparatus for forming an electrophotographic transfer image, forming a toner image by an electrophotographic process on the transfer layer, and heat-transferring the toner image together with the transfer layer onto a receiving material.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: December 21, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Eiichi Kato, Sadao Osawa
  • Patent number: 5928730
    Abstract: A process for forming a cured paint film from a paint containing, as a binder, a resin containing a carbonyl group, or a resin, or a resin mixture containing a carbonyl group and a carboxyl group or a paint containing, as a binder, a resin containing a resin or a resin mixture containing a group which forms a carboxyl group in the subsequent contact step with a hydrazine compound or polyhydrazide compound. The uncured paint film, which contains a carbonyl group, or a carbonyl group and a carboxyl group or a group that forms a carboxyl group, is subjected to a step of curing the paint film by allowing the uncured paint film to contact with a hydrazine compound or a polyhydrazide compound.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: July 27, 1999
    Assignee: Kansai Paint Co., Ltd.
    Inventor: Yasuharu Nakayama
  • Patent number: 5902473
    Abstract: An electrodeposition process using an aqueous coating composition comprising a carbamate-functional crosslinking agent and at least one principal resin is described. The carbamate-functional crosslinker is formed by first reacting a polyamine having at least two primary amine groups and at least one secondary amine group with a cyclic carbonate, and then reacting the product of the first reaction with a polyepoxide compound.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: May 11, 1999
    Assignee: BASF Corporation
    Inventors: Paul J. Harris, Peter D. Clark, Timothy S. December
  • Patent number: 5855754
    Abstract: A method and apparatus for two-coat one-fire electrophoretic enameling of a work piece made of metal, wherein a first undercoat enamel slip deposit bath is followed by at least one excess slip removing bath before the undercoated work piece is submerged in a process bath including an additive for reducing the electrical resistance of the enamel biscuit followed sequentially by another rinsing bath, a finish enamel coating bath and not less than one final rinsing bath before the coated work piece is subjected to an enamel firing step.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: January 5, 1999
    Assignee: Miele & Cie. GmbH & Co.
    Inventors: Karl Wiengarten, Mario Sprickmann