With Heat Treatment Of Coating Patents (Class 204/509)
  • Patent number: 6508922
    Abstract: A process for the production of a multi-layer coating, wherein a primer layer which is electrically conductive in the at least partially cured state is applied by electrodeposition from an electrodeposition coating agent (I) to an electrically conductive three-dimensional object, at least partially cured exclusively by the action of near infra-red radiation substantially only on the surfaces of the object exposed to the radiation, and an additional coating layer is applied by electrodeposition from an electrodeposition coating agent (II) which is different from electrodeposition coating agent (I), and then this additional coating layer as well as completely uncured or incompletely cured area parts of the primer layer produced from electrodeposition coating agent (I) are cured.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: January 21, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Matthias Kimpel, Martin Wulf, Oliver Reis
  • Patent number: 6248225
    Abstract: A process for applying two electrodeposited coatings, one on top of the other, to an electrically conductive substrate is provided. An electrically conductive first coating is applied to provide for corrosion resistance and a second polyurethane-based coating is applied to the first coating to provide chip resistance. Also, aqueous dispersions of the polyurethane coating compositions are disclosed.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: June 19, 2001
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Thomas Palaika, Ellor J. Van Buskirk, Victor G. Corrigan, Venkatachalam Eswarakrishnan, Gregory J. McCollum, Robert R. Zwack, Philippe Faucher, Craig A. Wilson, Chester J. Szymanski, James E. Poole, Keith S. Ritter, Richard F. Syput
  • 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: 6103306
    Abstract: Disclosed are a super-antirust coating used for a vehicle, which comprises 5 to 45% (by weight, hereinafter the same) of petroleum sulfonate and/or a metal salt thereof, 0.5 to 35% of lanolin fatty acid and/or a metal salt thereof, 0.5 to 35% of hardened castor oil, and 0.05 to 35% of a scaly filler and/or a fibrous filler, and an antirust treating method comprising coating a necessary site on a surface of an outer panel or a part of a vehicle with the super-antirust coating to a thickness of 50 .mu.m to 200 .mu.m, and drying the coating at 5 to 30.degree. C. for 1 to 2 hours to form a reinforced antirust coating.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: August 15, 2000
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kanekiyo Miyahara, Atsuhiro Takabatake, Yukiharu Yamaki, Masakazu Ito, Osamu Seko
  • 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: 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: 5830340
    Abstract: A method for forming filtration members using an electric potential to control the migration of electrically charged particles and hence to control the formation of a membrane layer on a substrate. In one embodiment, electrophoresis and electrodialysis processes are used to control the migration of sol particles and the deposition of the sol particles to provide a desired pore size associated with the membrane layer. In another embodiment, the substrate pores are impregnated with a reagent and, subsequently, electrophoresis and "reverse" electrophoresis processes are utilized to control the diffusion of ions in connection with the formation of the membrane layer.
    Type: Grant
    Filed: March 5, 1997
    Date of Patent: November 3, 1998
    Assignee: Trumem International LLC
    Inventors: Trusov Lev Iljitch, Fedotov Vladimir Petrovitch, Novikov Viktor Ivanovitch
  • Patent number: 5747727
    Abstract: A metal oxide layer is provided around a thermocouple element. The metal oxide layer is formed by preparing a sol, in which particulates of a metal oxide are dispersed, by a sol-gel method, dipping the thermocouple element in this sol, energizing the thermocouple element as a cathode for bonding the precursor particulates of the metal oxide thereto, and heat treating the same. The thermocouple according to the present invention is compact with a thin insulating layer, excellent in flexibility, and provides no gas adsorption source.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: May 5, 1998
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kazuo Sawada, Shinji Inazawa, Kouichi Yamada
  • Patent number: 5693205
    Abstract: The invention relates to a cathodic electro-dipping process, which comprises a procedure in which the electro-dipping primer used contains an adduct containing urethane groups which is obtainable by reacting with one another a polyester-polyol or polyether-polyol, a polyisocyanate and a compound which contains a hydroxyl group and at least one ketimine group in the molecule.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: December 2, 1997
    Assignee: BASF Lacke + Farben, AG
    Inventors: David J. Santure, Gunther Ott, Udo Reiter, Ulrich Heimann, Hans-Josef Oslowski
  • Patent number: 5616384
    Abstract: An in-mold label material is a nonwoven mat of fibers having one side fused with the outer surface of a polymeric container and the other side coated with a pigment-containing latex suitable for printing thereon. The label paper is manufactured from commercially available fibers combined in water into a homogeneous mixture and then formed into a mat employing a wet-lay process. For use with polyethylene containers, the label may be a web consisting of 88-100% polyethylene fibers and 0-15% polyvinyl alcohol fibers or 70-100% polyethylene fibers, 0-15% polyvinyl alcohol fibers and 0-30% polypropylene fibers. For use with polyester containers, the label may be a web consisting of 50-90% polyester staple fibers, 10-40% bicomponent polyester/co-polyester, core/sheath binder fibers and 0-10% polyvinyl alcohol binder fibers thermally bonded together. The nonwoven web of fibers has a pigmented coating.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: April 1, 1997
    Assignee: International Paper Company
    Inventors: James A. Goettmann, Stephen H. Monroe, Peter J. Angelini, John R. Boylan
  • Patent number: 5609741
    Abstract: A method of manufacturing a composite material in which a fibre matt is placed adjacent a plate electrode in ceramic sol. The application of an electric field to the sol via the electrode results in the deposition of sol particles on the electrode which subsequently permeate the fibre matt. The permeated fibre matt is then removed from the sol, dried out and heated to sinter the sol particles.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: March 11, 1997
    Assignee: Rolls-Royce plc
    Inventors: Trevor J. Illston, Paul A. Doleman, Edwin G. Butler, Peter M. Marquis, Clive B. Ponton, Reza Piramoon, Mark J. Gilbert
  • Patent number: 5554271
    Abstract: A method of manufacturing a composite material which comprises ceramic fibers in a matrix of a ceramic material. A woven mat of ceramic fibers having an electrically conductive coating thereon is immersed in a sol. The sol comprises surface-charged ceramic particles. A potential difference is applied between the fibers and a second electrode placed in the sol. The applied potential difference is continued until the mat is permeated by the ceramic particles in the sol. The mat is removed from the sol and is then heated to sinter the permeated ceramic particles.
    Type: Grant
    Filed: March 8, 1995
    Date of Patent: September 10, 1996
    Assignee: Rolls-Royce plc
    Inventors: Trevor J. Illston, Paul A. Doleman, Edwin G. Butler, Peter M. Marquis, Clive B. Ponton, Reza Piramoon, Mark J. Gilbert
  • Patent number: 5531880
    Abstract: A system and method for producing thin, uniform powder phosphors for field emission display screens wherein a planarization of the phosphor powder layer is accomplished by placing the deposited phosphor layer in an anode plate between two optical flats, which are then mounted within a mechanical press.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: July 2, 1996
    Assignees: Microelectronics and Computer Technology Corporation, SI Diamond Technology, Incorporated
    Inventors: Chenggang Xie, Donald E. Patterson, Nalin Kumar