Organic Containing Coating Patents (Class 427/447)
-
Patent number: 6080496Abstract: A method for preparing and coating metal cookware having an interior cooking surface and for the application of a lubricative coating is disclosed. The method includes mechanically spraying the interior cooking surface with an aluminum oxide material to produce a roughened surface and applying by thermal spraying a metallic abrasion resistant layer of substantially pure titanium, titanium oxide and/or titanium nitride. Also disclosed is a cooking utensil having a substrate and an intermediate layer deposited on the substrate by thermally spraying the substrate with a mechanically durable material, said mechanically durable material being selected from the group consisting of chemically pure titanium, titanium-aluminum, nickel-titanium, and titanium 6-4.Type: GrantFiled: June 10, 1998Date of Patent: June 27, 2000Assignee: Regal Ware, Inc.Inventors: Charles J. Hupf, Daryl E. Crawmer, Leonard C. Brumbaugh
-
Patent number: 6074705Abstract: An applicator for temporarily masking stains on clothing includes a canister having an chamber for containing fluid, a water based, stain masking solution disposed within the chamber of the canister, and a brush or a spray head applying the stain masking solution from the chamber of the canister on a stain requiring masking. The stain masking solution covers the stain so that the stain is substantially concealed. The canister has an elongate annular wall having an open end at one end thereof, and an end wall closing the other end of the annular wall. Preferably, the stain masking solution consists of: resin--approximately 10.0 percent by weight; isopropanol--approximately 15.0 percent by weight; water--approximately 55.0 percent by weight; titanium dioxide--approximately 15.0 percent by weight; and ammonia--approximately 5.0 percent by weight.Type: GrantFiled: April 30, 1999Date of Patent: June 13, 2000Inventor: David N. DeBaene
-
Patent number: 6068888Abstract: Techniques for melting and forming aerosols from solid CIPC are disclosed. Solid CIPC in block form is convenient to ship and to handle. Solid CIPC in block form appears to have a consistency of solid paraffin wax. Solid CIPC is melted by controlled techniques to form a substantially pure liquid stream of CIPC. The molten or liquid stream of CIPC is converted to an aerosol of CIPC either by a pressurized, hot air stream or by a combustion gas stream.Type: GrantFiled: July 13, 1999Date of Patent: May 30, 2000Inventors: Darol Forsythe, John M. Forsythe
-
Patent number: 6051279Abstract: Two different powders, one ceramic and the other of polymer particles, are fed separately into a jet of plasma of a conventional torch of a plasma spraying device by means of separate supply devices having respective powder injectors. The injection parameters of the two powders are established independently to achieve effective fusion of the ceramic particles and prevent complete combustion of the polymer particles. More specifically, the ceramic powder is injected along the axis of the jet of plasma, while the polymer powder is injected into a peripheral portion of the jet, at a predetermined distance from the jet axis, so that some of the polymer particles are incorporated in the ceramic coating deposited on a component for coating; and the polymer is subsequently removed by medium-temperature heat treatment to leave a porous ceramic coating with excellent thermal insulation properties.Type: GrantFiled: July 17, 1998Date of Patent: April 18, 2000Assignee: Finmeccanica S.P.A. Azienda AnsaldoInventors: Giuseppe Carlo Gualco, Sergio Corcoruto, Andrea Campora
-
Patent number: 6025034Abstract: This invention relates to methods whereby reprocessed nanoparticle powder feeds, nanoparticle liquid suspensions, and metalorganic liquids are used in conventional thermal spray deposition for the fabrication of high-quality nanostructured coatings. In one embodiment of this invention, the nanostructured feeds consist of spherical agglomerates produced by reprocessing as-synthesized nanostructured powders. The method is applicable to as-synthesized nanostructured powders made by a variety of liquid chemical processing methods. In another embodiment of this invention, a fine dispersion of nanoparticles is directly injected into a combustion flame or plasma thermal spray device to form high-quality nanostructured coatings.Type: GrantFiled: February 5, 1998Date of Patent: February 15, 2000Assignees: University of Connecticut and Rutgers, The State University of New JerseyInventors: Peter R. Strutt, Bernard H. Kear, Ross F. Boland
-
Patent number: 6005062Abstract: New secondary amines are described which are prepared from inexpensive, commercially available raw materials, are stable at room temperature, and are reactive toward electrophiles. The secondary amines are prepared by the addition of one or more primary amines with one or more male (amide/ester) and fumar (amide/ester) Michael receptors. The above amines can be used as coreactants with aliphatic polyisocyanates for polyurea coatings. The novel secondary amines are also described as particularly useful as part of a two-part liquid pavement marking composition for pavement markings.Type: GrantFiled: July 2, 1998Date of Patent: December 21, 1999Assignee: 3M Innovative Properties CompanyInventors: Richard G. Hansen, Dean M. Moren, Mark D. Purgett
-
Patent number: 5989651Abstract: A phase separation apparatus such as a filter element or papermaking belt comprises an ormocer which provides abrasion resistance, cleanliness and stability.Type: GrantFiled: May 22, 1998Date of Patent: November 23, 1999Assignee: Scapa Group PLCInventors: Ian Christison Sayers, Thomas Saunders
-
Patent number: 5962145Abstract: An aluminum surface treatment method is provided for forming a film having anticorrosion properties and, in particular, antirusting properties by treating aluminum or an aluminum alloy using an aluminum surface treatment agent comprising a fluoromental acid or fluoromental acid salt including at least one of the metals zirconium, titanium hafnium, aluminum, silicon, germanium, tin, or boron, and at least one type of polymer compound comprising a homopolymer or a copolymer of an aromatic sulfonic acid monomer containing unsaturated bonds or an aliphatic sulfonic acid monomer containing unsaturated bonds. Also provided are aluminum or an aluminum alloy on which this film is formed.Type: GrantFiled: June 5, 1997Date of Patent: October 5, 1999Assignee: Nippon Paint Co., Ltd.Inventor: Masahiko Matsukawa
-
Patent number: 5955518Abstract: A heteropolysaccharide--containing glass fiber sizing composition that provides improved application uniformity when applied to hot fibers via a roll coater.Type: GrantFiled: November 21, 1997Date of Patent: September 21, 1999Assignee: Owens Corning Fiberglas Technology, Inc.Inventor: Martin C. Flautt
-
Patent number: 5952054Abstract: A spray deposit is formed by applying a spray deposit on a target object, and applying a sealer onto the spray deposit on the target object immediately after the spray deposit is applied on the target object. Thus, a thin layer of sealer components contained in the sealer is formed immediately on the spray deposit while a liquid component of the sealer volatilizes.Type: GrantFiled: November 25, 1997Date of Patent: September 14, 1999Assignee: Nippon Steel Hardfacing Co., Ltd.Inventors: Takao Sato, Atsushi Migita, Kiyohiro Tarumi
-
Patent number: 5935691Abstract: The subject invention relates to a type of metal dual-color extruded plastic key; said key comprising an electroplatable plastic material and a non-electroplatable plastic material; said two parts being subjected to plastic dual-color extrusion forming process; said non-electroplatable plastic material serving to produce a letter or figure; the area surrounding said non-electroplatable plastic material being the electroplatable plastic material; the surface of said electroplatable material being a layer of light-proof electroplated coating, to form the required metal surface; whereby the non-electroplatable plastic material being used to form the area where the letter or figure is to appear, so the lighting could permeate from the letter or figure; the above structure is so designed to provide a high added value to the key product with an exterior of excellent light permeability and comfortable touch.Type: GrantFiled: August 20, 1997Date of Patent: August 10, 1999Assignee: Silitek CorporationInventor: Jason Tsai
-
Patent number: 5935660Abstract: Techniques for melting and forming aerosols from solid CIPC are disclosed. Solid CIPC in block form is convenient to ship and to handle. Solid CIPC in block form appears to have a consistency of solid paraffin wax. Solid CIPC is melted by controlled techniques to form a substantially pure liquid stream of CIPC. The molten or liquid stream of CIPC is converted to an aerosol of CIPC either by a pressurized, hot air stream or by a combustion gas stream.Type: GrantFiled: December 23, 1996Date of Patent: August 10, 1999Inventors: Darol Forsythe, John M. Forsythe
-
Patent number: 5932678Abstract: The present invention relates to mixtures, containing A) reaction products from isocyanates and NCO-reactive silanes and B) carbosilane dendrimers, a process for preparing powder coatings from the mixtures and their use.Type: GrantFiled: March 11, 1997Date of Patent: August 3, 1999Assignee: Bayer AGInventors: Helmut-Martin Meier, Michael Mager, Karsten Dierksen, Knud Reuter
-
Patent number: 5900282Abstract: A method of depositing a dielectric coating, comprising the steps of forming an unroughened or roughened, as-cast or wrought substrate surface to receive the coatings; and flame spraying a single premixed thermoplastic epoxy/hardener powder onto the surface, the resultant in-flight heated powder being chemically activated to impact the surface and form a chemically adhering coating, the coating being cured in-situ to be dielectric and thermally conductive.Type: GrantFiled: January 20, 1998Date of Patent: May 4, 1999Assignee: Ford Global Tech nologies, Inc.Inventors: David Robert Collins, Paul Earl Pergande, Matthew John Zaluzec, Armando Mateo Joaquin, Jeffrey Alan Kinane
-
Patent number: 5885658Abstract: A metal substrate such as bare or anodized aluminum or an aluminum alloy having an inorganic white paint thermal control coating on the substrate, said coating having low solar absorptance and high infrared emittance, such as a potassium silicate binder having zinc oxide particles distributed therein, and a fluoropolymer topcoat such as polytetrafluoroethylene on the inorganic white coating, the topcoat having substantially no significant effect on the optical properties of the thermal control coating and having substantial adhesion to such coating and improved resistance to darkening under ultraviolet exposure in the outer space environment.Type: GrantFiled: July 8, 1997Date of Patent: March 23, 1999Assignee: McDonnell Douglas Technologies, Inc.Inventors: Henry W. Babel, Mark M. Hasegawa, Steven A. Daneman
-
Patent number: 5885663Abstract: A high temperature thermal sprayable material, such as a metal or metal oxide, is adhered to the surface of a thermal sprayable plastic particle to form a cladding layer thereon. The high temperature material cladding layer provides a thermal barrier that allows use of the plastic in a high temperature thermal spray process to create a duplex coating containing plastic.Type: GrantFiled: October 6, 1997Date of Patent: March 23, 1999Assignee: Spray-Tech, Inc.Inventor: Frank N. Longo
-
Patent number: 5879743Abstract: A wear-resistant hardfacing and a method for applying such a hardfacing is taught herein. A finely powdered, wear-resistant alloy and a polyvinyl alcohol (PVA) solution slurry is coated onto the metal surface of a tool, implement, or similar item to be hardfaced. Alternatively, a binding coating of PVA solution may be applied to the metal surface followed by application of a layer of a powdered alloy. After the slurry or PVA binding coating has dried, leaving a dry coat of alloy in a PVA matrix, the metal surface is heated to the fusion temperature of the alloy in vacuum, in an inert gas atmosphere, or in hydrogen atmosphere. The metal item with the fused coating is heat treated to impart desired mechanical properties to the part substrate material. The method of the present invention gives a smooth, dense coating of the wear-resistant hardfacing without nonmetallic inclusions.Type: GrantFiled: October 21, 1997Date of Patent: March 9, 1999Assignee: Deere & CompanyInventor: Gopal S. Revankar
-
Patent number: 5856380Abstract: A process is described for flame-proofing organic polymeric materials by means of a low temperature plasma treatment in the presence of at least one volatile, low-molecular compound. The process comprises subjecting a volatile compound, selected from a halogen-free phosphorus compound, to the low temperature plasma, such that a homogeneous polymeric structure forms on the organic material. A very wide range of organic materials can be effectively flame-proofed with the process of this invention without adversely affecting their other properties such as mechanical properties or photochemical stability.Type: GrantFiled: June 14, 1996Date of Patent: January 5, 1999Assignee: Ciba Specialty Chemical CorporationInventors: Michael Bauer, Manfred Rembold
-
Patent number: 5830540Abstract: A method and apparatus for reactive plasma surfacing includes at least two electrodes between which reactive gases are passed. The reactive gases are ionized by the arc between the electrodes, creating a plasma of heated, ionized, reactive gases. The plasma is then applied to a surface to be treated, causing a chemical reaction between the plasma and the surface and resulting in a new diffusional substrate surface on the treated object. The process occurs at substantially atmospheric pressure, and may include an inert gas to shield the process from the surrounding environment.Type: GrantFiled: July 25, 1996Date of Patent: November 3, 1998Assignee: Eltron Research, Inc.Inventor: Jim Bowers
-
Patent number: 5792518Abstract: The present invention relates to a pipe treatment process that is a portable, field-applied, coating process. The process produces a two-layer composite protective coating system with a finished, seamless, chemical bond within its interlayers as well as to adjacent coating materials, The process is suitable for both metailic and concrete substrates, which may or may not be cathoadically protected, and may be used to either coat now or to recoat e.g.Type: GrantFiled: October 8, 1996Date of Patent: August 11, 1998Inventors: Mark Gibson, Kenneth Fogh
-
Patent number: 5783259Abstract: Described are molds, dies and forming tools comprising: a) a heat exchanging body support member; and b) within the support member, a molding cavity portion formed by thermal spraying metallic particles to a desired configuration in the support member. Also described are methods of making a mold, die or forming tool comprising the steps of: a) providing a body support member having a controlled and designed porosity which permits the enhancement of the heat transfer ability of said mold, die or forming tool; b) configuring a surface of the support member to a desired cavity; and c) spraying particles to the configured cavity in the support member, thereby producing a mold, die or forming tool. Preferably, the materials of construction are metallic and are applied by thermal plasma spraying. The particles may also be ceramics, metal matrix composites, ceramic matrix composites, thermoplastic resins, thermoset resins, and composites based thereupon.Type: GrantFiled: March 7, 1997Date of Patent: July 21, 1998Assignee: Metallamics, Inc.Inventor: Robert R. McDonald
-
Patent number: 5759613Abstract: The invention provides a method of treating an artifact to combat unauthorized tampering with the identity thereof. The method comprises forming a coating on at least part of a surface of the artifact, to provide the artifact with an identification mark which comprises said coating. Forming the coating is by means of thermal spray-coating. The method can be used to coat a pre-formed identification mark on the surface, or to apply an identification mark to the surface, the mark being an engine number, chassis number, or the like. The method acts to render vehicle or aircraft theft, and forgery of parts thereof, more difficult.Type: GrantFiled: March 4, 1997Date of Patent: June 2, 1998Assignee: CSIRInventors: Hugo Jean Howse, Heidi Lynette De Villiers-Filmer, Neville Raymond Comins
-
Patent number: 5753313Abstract: A method for coating metal cookware having a cooking surface includes the steps of: (1) roughening and cleaning the cooking surface of the metal cookware; (2) applying a metallic scratch-resistant layer onto the roughened and cleaned cooking surface by electric-arc spraying; and (3) applying an anti-stick layer onto the scratch-resistant layer. The step (2) includes electric-arc spraying a stainless steel and an aluminum alloy onto the cooking surface of the metal cookware in order to improve corrosion resistance of the scratch-resistant layer. The stainless steel consists of less than 0.2% by weight of carbon, 17-20% by weight of chromium, 7-10% by weight of nickel and the remainder being iron. The aluminum alloy consists of 0.25% by weight of silicon, 0.4% by weight of iron, 0.10% by weight of copper, 0.05-0.20% by weight of manganese, 4.5-5.5% by weight of magnesium, 0.05-0.20% by weight of chromium, 0.10% by weight of zinc, 0.06-0.20% by weight of titanium, 0.Type: GrantFiled: December 26, 1996Date of Patent: May 19, 1998Assignee: Sheh Jone Enterprises Co., Ltd.Inventor: Tung-Hung Tsai
-
Patent number: 5723535Abstract: The present invention relates to pastes for the coating of substrates, consisting of powdery materials present in liquid dispersion from the group of the metals, metal compounds and/or metal alloys and/or boron and/or carbon, methods for manufacturing them and their use.Type: GrantFiled: October 16, 1996Date of Patent: March 3, 1998Assignee: H.C. Starck GmbH & Co., KGInventors: Bruno E. Krismer, Uwe Thies, Peter Ladstatter, Rudolf Hunert
-
Patent number: 5718970Abstract: A high temperature thermal sprayable material, such as a metal or metal oxide, is adhered to the surface of a thermal sprayable plastic particle to form a cladding layer thereon. The high temperature material cladding layer provides a thermal barrier that allows use of the plastic in a high temperature thermal spray process to create a duplex coating containing plastic.Type: GrantFiled: June 6, 1995Date of Patent: February 17, 1998Inventor: Frank N. Longo
-
Patent number: 5714243Abstract: A dielectric image receiving member is disclosed which comprises a substrate layer, a porous plasma-sprayed dielectric layer formed on the surface of the substrate layer, and a dielectric polymeric coating material filling at least those pores opening at the surface of the oxide layer. Most preferably, the plasma-sprayed layer is a metal oxide and the coating material is a glass resin.Type: GrantFiled: February 8, 1995Date of Patent: February 3, 1998Assignee: Xerox CorporationInventors: Joseph Mammino, Donald J. Teney, Dennis A. Abramsohn, Santokh S. Badesha, Donald S. Sypula
-
Patent number: 5708039Abstract: A coating powder consisting essentially of generally spherical particles ranging in size from less than 2 to about 40 microns, 75% of whose volume consists of particles of from about 2 to about 20 microns in size, is provided by dissolving the components of the coating powder in a supercritical fluid without the aid of a surfactant and spraying the solution into a zone whose pressure is less than that of the fluid. A very smooth continuous film of a cured thermosettable coating powder is achieved even when the film thickness is less than 1 mil, e.g., from about 0.2 and greater. The advantages of powder coatings may now be realized fully in the automobile and can industries.Type: GrantFiled: June 14, 1996Date of Patent: January 13, 1998Assignee: Morton International, Inc.Inventors: Andrew T. Daly, Navin B. Shah, Glenn D. Correll, Karl R. Wursthorn
-
Patent number: 5656335Abstract: A process for coating a substrate with a metal giving a polished effect, the substrate being of a material that is dimensionally stable at temperatures up to at least 120.degree. C. The process includes the steps of cleaning the substrate or forming a top coating on the substrate by burning on a powdered lacquer, coating the cleaned or coated substrate with a metal giving a polished effect by plasma deposition within a vacuum chamber, and applying a top coating by burning on a powdered lacquer.Type: GrantFiled: December 8, 1994Date of Patent: August 12, 1997Inventors: Thomas Schwing, Jurgen Schwing
-
Patent number: 5614267Abstract: A method and a product are provided for improving the resistance to abrasion of a load-carrying surface of a conveyor belt formed of a cord-reinforced elastomer material selected from the group consisting of natural and synthetic rubber, the belt being adapted for use for conveying particulate ore or other particulate material having abrasive properties. The method employed comprises cleaning the surface of the conveyor belt prior to coating the same with an abrasion resistant coating. The conveyor belt is characterized by a distribution of pores in the surface to be coated. A flexible coating of a polymer selected from the group consisting of polyolefins and polyester elastomers is flame sprayed in the molten state onto the conveyor belt surface using a flame spray torch. The flame of the torch is spaced from the conveyor surface to avoid contacting of the flame with the surface being coated.Type: GrantFiled: January 30, 1996Date of Patent: March 25, 1997Assignee: Eutectic CorporationInventor: Marvin Howlett
-
Patent number: 5609922Abstract: Described are molds, dies and forming tools comprising: a) a heat exchanging body support member; and b) within the support member, a molding cavity portion formed by thermal spraying metallic particles to a desired configuration in the support member. Also described are methods of making a mold, die or forming tool comprising the steps of: a) providing a body support member having a controlled and designed porosity which permits the enhancement of the heat transfer ability of said mold, die or forming tool; b) configuring a surface of the support member to a desired cavity; and c) spraying particles to the configured cavity in the support member, thereby producing a mold, die or forming tool. Preferably, the materials of construction are metallic and are applied by thermal plasma spraying. The particles may also be ceramics, metal matrix composites, ceramic matrix composites, thermoplastic resins, thermoset resins, and composites based thereupon.Type: GrantFiled: December 5, 1994Date of Patent: March 11, 1997Inventor: Robert R. McDonald
-
Patent number: 5578348Abstract: Aqueous emulsions of graft copolymers comprising acrylate esters of alkanols having 2-24 carbon atoms grafted onto a backbone polymer comprising monomers of acrylate esters of alkanols having 2-24 carbon atoms are disclosed, as is the finishing of surfaces such as tanned leather by applying such emulsions thereto.Type: GrantFiled: May 22, 1995Date of Patent: November 26, 1996Assignee: R ohm GmbHInventors: Harald Bauer, Juergen Christner, Maria L. Weber, Wolfgang Hoehne
-
Patent number: 5514422Abstract: A composite metallizing wire useful in thermal flame spraying, having a conductive metallic solid core wire strand and a coating consisting of solid lubricant particles (i.e., graphite, BN, Teflon) and wear-resistant particles (i.e., SiC, TiC, Cr.sub.3 C.sub.2) homogeneously suspended in a conductive metal (i.e., Ni, Fe, Cr, Mo, Ti) complementary to said solid core wire strand. The wire is used to produce a metal matrix composite coating, comprising providing a thermalizing through-flow chamber with an exit nozzle, the chamber having a gas flow-through of at least 100 ms.sup.-1, establishing a flame in said chamber, and feeding a composite coated wire into said flame to be melted and projected by the gas flow to a target, the wire being constructed as above.Type: GrantFiled: March 1, 1994Date of Patent: May 7, 1996Assignee: Ford Motor CompanyInventor: Robert C. McCune
-
Patent number: 5472745Abstract: A process for producing plastic layers on gap sealing surfaces which are unaffected by temperature changes is provided. Plasma or acetylene oxygen flame is generated by a plasma or flame spraying burner, which melts a plastic mass under a cooling gas flow of from 40 to 150 SLpM and sprays it onto a gap sealing surface. Coatings produced by this process have dense to porous layer structures and, when polyphenylene sulfides are used as the plastic material, may be used up at to temperatures of 250.degree. C.Type: GrantFiled: June 14, 1994Date of Patent: December 5, 1995Assignee: MTU Motoren- und Turbinen Union Muenchen GmbHInventors: Johannes Schroeder, Joachim Soehngen, Christian Heinzelmaier
-
Patent number: 5442013Abstract: Aqueous emulsions of graft copolymers comprising acrylate esters of alkanols having 2-24 carbon atoms grafted onto a backbone polymer comprising monomers of acrylate esters of alkanols having 2-24 carbon atoms are disclosed, as is the finishing of surfaces such as tanned leather by applying such emulsions thereto.Type: GrantFiled: April 25, 1994Date of Patent: August 15, 1995Assignee: Rohm GmbHInventors: Harald Bauer, Juergen Christner, Maria L. Weber, Wolfgang Hoehne
-
Patent number: 5409782Abstract: The present invention relates to a composite film. More particularly, the present invention relates to a composite compound film and composite compound multilayered film, comprising a metal, an alloy and/or an inorganic substance with an organic substance, which is excellent in decorative properties, protection and functionality. Methods applicable for forming such a composite compound film include the technique of evaporating a metal, an alloy, and/or an inorganic substance and an organic substance, simultaneously exciting the evaporated particles, and causing vapor-deposition in the state of ionized particles, neutral particles or radicals, and a method of sputtering, without excitation, etc.Type: GrantFiled: November 22, 1993Date of Patent: April 25, 1995Assignee: Orient Watch CompanyInventor: Youichi Murayama
-
Patent number: 5304032Abstract: A turbine engine having an interior housing and one or more annular abradable seals for the turbine blades. The abradable seal comprises a resin having fractured hollow inorganic non-metallic microspheres forming nooks, crannies and undercuts in the resin and a solid lubricant in the resin and in the nooks and crannies and undercuts formed by the fractured hollow non-metallic inorganic microspheres.Type: GrantFiled: July 22, 1991Date of Patent: April 19, 1994Inventors: Alexander A. Bosna, Louis M. Riccio
-
Patent number: 5288809Abstract: The invention concerns graft copolymers, useful for the treatment of leather, comprising monomers of the formula ##STR1## grafted onto a base polymer comprising monomers of the formula ##STR2## wherein R.sub.1 and R.sub.2 stand for a hydrocarbon group having 2 to 24 carbon atoms, with the proviso that the groups R.sub.1 and R.sub.2 have van der Waals volumes which differ from one another by less than 30 percent.Type: GrantFiled: March 31, 1993Date of Patent: February 22, 1994Assignee: Rohm GmbHInventors: Juergen Christner, Harald Bauer, Maria L. Weber, Victor N'Gueyilbe
-
Patent number: 5279785Abstract: A sintered or bonded permanent magnet formed from a material consisting mainly of iron, particularly a Nd-Fe-B alloy, and having a high corrosion resistance has a surface coated with a resin obtained by the polycondensation of tannic acid, phenols and aldehydes. A bonded magnet is also made from a powder of any such material composed of particles coated with any such resin.Type: GrantFiled: July 30, 1992Date of Patent: January 18, 1994Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Fumihito Mohri, Takuji Nomura, Shougo Miki
-
Patent number: 5262206Abstract: A method for forming an abradable composite material and the material so formed. A filler is fed axially into a stream of high-temperature combustion gases such that the filler is entrained in the gaseous stream. The gaseous stream containing the filler is then used to atomize the molten tip of a metal wire which is continuously fed into the gaseous stream. The resultant gaseous stream which contains both the filler and the atomized molten metal is directed to the surface of a target. The filler and the molten metal impact the target and combine to form a substantially continuous metal matrix in which the interstices are filled by the filler. The composite material abrades readily upon frictional contact with a moving part.Type: GrantFiled: January 13, 1992Date of Patent: November 16, 1993Assignee: Plasma Technik AGInventors: Subramaniam Rangaswamy, Daniel R. Marantz, Robert A. Miller
-
Patent number: 5234156Abstract: A process and an apparatus serve for the continuous coating of workpieces, with a coating medium being applied to a zone to be coated on the workpiece that is passing the zone, and with heat being applied in this coating procedure, to produce a film from the coating medium at the zone. To reduce the size of the installation, a synthetic resin is sprayed toward the zone that is passing through, and heat is applied, at least predominantly, before the sprayed synthetic resin impinges on the zone, in order to reduce the size of the route up to where the film is formed.Type: GrantFiled: July 9, 1990Date of Patent: August 10, 1993Inventor: Peter Ribnitz
-
Patent number: 5211990Abstract: Improved plastic flame spray coating apparatus and methodology are disclosed. An inert gas is configured to shroud or envelop the pneumatically-conveyed stream of powdered plastic which is carried through the combustion flame. The polyolefin coating has increased adhesion and coating smoothness and thicker coatings without thermally-induced embrittlement, discoloration and poor mechanical properties are obtained.Type: GrantFiled: August 1, 1991Date of Patent: May 18, 1993Assignee: The Dow Chemical CompanyInventors: Osborne K. McKinney, Randy S. Moore, Alfred F. Castello
-
Patent number: 5176938Abstract: A process for the surface treatment of individual particles of a pulverulent material to improve the surface properties thereof. The process includes a plasma-generating apparatus for generating a plasma in a plasmagenerator while supplying an inert gas at a high drift velocity into the generator to form a low temperature plasma flame which is directed into a low pressure zone. Subsequently, the pulverulent material is injected into the high velocity inert gas or into the base of the plasma flame to disintegrate any particle aggregate present in the material. The low temperature plasma acts on the surface of each individual particle to improve the properties thereof. The treated particles can then be recovered from the zone.Type: GrantFiled: May 23, 1990Date of Patent: January 5, 1993Assignee: Plasmacarb Inc.Inventors: Hans I. Wallsten, Hirotsugu K. Yasuda
-
Patent number: 5164219Abstract: A patterned decorative material is prepared by a method which comprises applying a thermosetting powder coating material to a base plate; melting of the thermosetting powder coating material by heating; simultaneously embossing the coating layer and the base plate while the melted thermosetting powder coating material has a gel fraction formed by a hardening reaction of 0 to 75 weight percent; and further heating to form a hardened coating on the base plate. The patterned decorative material is excellent in appearance, corrosion resistance, weathering resistance and abrasion resistance and is free from the defects of conventional steel plates coated with polyvinyl chloride and the like, such as formation of craze and loss of luster.Type: GrantFiled: June 26, 1991Date of Patent: November 17, 1992Assignee: Nippon Oil and Fats Company, LimitedInventors: Kenzou Maeda, Haruki Ito
-
Patent number: 5153021Abstract: An abradable seal coating for application to one of a pair of members having relative rotational movement and its method of manufacture are described.The abradable seal coating comprises a two phase composition consisting of a first phase of a metallic alloy matrix of approximately 88% aluminium - 12% silicon, and a second phase of an organic dispersoid material. The first and second phases are codeposited onto a substrate in the ratio 80:20 respectively.The two phases are modified after codisposition onto the substrate by heat treating at a temperature of 450.degree. C. for about sixteen hours. The heat treated coating can be used at elevated temperatures and has improved abradability whilst maintaining its integrity.Type: GrantFiled: January 17, 1991Date of Patent: October 6, 1992Assignee: Rolls-Royce plcInventors: William B. Litchfield, Kenneth W. Wright
-
Patent number: 4132668Abstract: The invention is related to a method of preparing a hydrogen-permeable membrane catalyst on a base of palladium or its alloys for the hydrogenation of unsaturated organic compounds.According to the invention the surface of a metalloceramic sheet on a base of nickel, copper or stainless steel with a thickness from 0.05 to 1 mm is covered with an organosilicon polymer which is subsequently cured at a temperature ranging from 20 to 150.degree. C.The curing results in the formation of a film of the organosilicon polymer with a thickness from 0.01 to 1 mm, whereupon a layer of palladium or its alloy with a thickness from 0.001 to 0.1 micron is deposited on the polymer film.The method of the invention allows decreasing by hundreds of times the consumption of palladium, and other noble metals such as ruthenium, rhodium, rhenium, silver, and gold.Type: GrantFiled: April 6, 1977Date of Patent: January 2, 1979Inventors: Vladimir M. Gryaznov, Viktor S. Smirnov, Valentin M. Vdovin, Margarita M. Ermilova, Lia D. Gogua, Nina A. Pritula, Igor A. Litvinov
-
Patent number: H1284Abstract: A coated object is produced by flame spraying the object with a substantially molten polymeric material which comprises a blend containing polybutylene homopolymer or copolymer, an adhesion promoter and a nucleating agent.Type: GrantFiled: May 15, 1992Date of Patent: February 1, 1994Assignee: Shell Oil Co.Inventor: Cesar O. Castro