With Heat Treatment Of Coating Patents (Class 204/509)
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Patent number: 6508922Abstract: 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: GrantFiled: May 10, 2001Date of Patent: January 21, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Matthias Kimpel, Martin Wulf, Oliver Reis
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Patent number: 6248225Abstract: 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: GrantFiled: May 11, 1999Date of Patent: June 19, 2001Assignee: 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
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Patent number: 6113764Abstract: 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: GrantFiled: May 26, 1999Date of Patent: September 5, 2000Assignee: PPG Industries Ohio, Inc.Inventor: Donaldson J. Emch
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Patent number: 6103306Abstract: 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: GrantFiled: February 5, 1999Date of Patent: August 15, 2000Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Kanekiyo Miyahara, Atsuhiro Takabatake, Yukiharu Yamaki, Masakazu Ito, Osamu Seko
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Patent number: 6090253Abstract: 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: GrantFiled: August 31, 1998Date of Patent: July 18, 2000Assignee: Nissan Motor Co., Ltd.Inventors: Kenshichiro Shima, Takashi Arakawa, Hirokazu Sugiyama
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Patent number: 6054033Abstract: 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: GrantFiled: March 24, 1998Date of Patent: April 25, 2000Assignee: Nippon Paint Co., Ltd.Inventors: Fumio Hunakoshi, Toshiyuki Ishii
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Patent number: 6004716Abstract: 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: GrantFiled: June 27, 1994Date of Patent: December 21, 1999Assignee: Fuji Photo Film Co., Ltd.Inventors: Eiichi Kato, Sadao Osawa
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Patent number: 5928730Abstract: 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: GrantFiled: November 25, 1997Date of Patent: July 27, 1999Assignee: Kansai Paint Co., Ltd.Inventor: Yasuharu Nakayama
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Patent number: 5902473Abstract: 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: GrantFiled: June 30, 1997Date of Patent: May 11, 1999Assignee: BASF CorporationInventors: Paul J. Harris, Peter D. Clark, Timothy S. December
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Patent number: 5830340Abstract: 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: GrantFiled: March 5, 1997Date of Patent: November 3, 1998Assignee: Trumem International LLCInventors: Trusov Lev Iljitch, Fedotov Vladimir Petrovitch, Novikov Viktor Ivanovitch
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Patent number: 5747727Abstract: 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: GrantFiled: April 25, 1997Date of Patent: May 5, 1998Assignee: Sumitomo Electric Industries, Ltd.Inventors: Kazuo Sawada, Shinji Inazawa, Kouichi Yamada
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Patent number: 5693205Abstract: 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: GrantFiled: January 24, 1992Date of Patent: December 2, 1997Assignee: BASF Lacke + Farben, AGInventors: David J. Santure, Gunther Ott, Udo Reiter, Ulrich Heimann, Hans-Josef Oslowski
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Patent number: 5616384Abstract: 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: GrantFiled: December 2, 1993Date of Patent: April 1, 1997Assignee: International Paper CompanyInventors: James A. Goettmann, Stephen H. Monroe, Peter J. Angelini, John R. Boylan
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Patent number: 5609741Abstract: 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: GrantFiled: October 20, 1994Date of Patent: March 11, 1997Assignee: Rolls-Royce plcInventors: Trevor J. Illston, Paul A. Doleman, Edwin G. Butler, Peter M. Marquis, Clive B. Ponton, Reza Piramoon, Mark J. Gilbert
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Patent number: 5554271Abstract: 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: GrantFiled: March 8, 1995Date of Patent: September 10, 1996Assignee: Rolls-Royce plcInventors: Trevor J. Illston, Paul A. Doleman, Edwin G. Butler, Peter M. Marquis, Clive B. Ponton, Reza Piramoon, Mark J. Gilbert
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Patent number: 5531880Abstract: 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: GrantFiled: September 13, 1994Date of Patent: July 2, 1996Assignees: Microelectronics and Computer Technology Corporation, SI Diamond Technology, IncorporatedInventors: Chenggang Xie, Donald E. Patterson, Nalin Kumar