Abstract: A repair coating method which comprises coating a photocurable processing composition (I) onto a damaged area of a substrate to form a processed layer, followed by coating a colored base coating composition (II) onto the processed layer to form a colored base layer, and coating a photocurable clear composition (III) onto the colored base layer to form a clear layer.

Abstract: The invention relates to a process for repairing coated substrate surfaces comprising the following successive steps:

Abstract: The invention relates to a process of repairing a MCrAlY-coating of an article, which has being exposed to the hot gases of, for example, a gas turbine. The MCrAlY-coating is examined and repaired only locally where it is needed and then, subsequently, on top of the MCrAlY-coating the article is aluminized and/or chromized, avoiding the stripping of the whole coating and re-coating over the entire surface of the article. This is for replenishing the coating of Al and/or Cr that become depleted during engine operation, in an easy, cost and time saving manner.

Abstract: This invention relates to a method of repairing a moisture barrier separating a paper machine dryer drum from the dryer journal. Such processes of this type, generally, involve filling the cavity between the dryer drum steam intake pipe and the dryer journal with a flowable moisture barrier material. The flowable moisture barrier seals leaks in the dryer journal moisture barrier.

Abstract: A method of repairing the tip region of combustion turbine engine blades is provided. The method includes application of a thermal barrier coating after stripping of the bond coat, repair of the blade, reapplication of the bond coat and suitable heat treatment. Blades which previously were not coated with a thermal barrier coating are candidates for repair with the methods of the present invention.

Abstract: A system for patching a destination surface to match an existing texture pattern. The system comprises texture material, a tube member, and a sponge member. The texture material comprises a base, a carrier, and particulate material. The tube member contains the texture material and defines a container opening through which the texture material may flow. The sponge member defines an applicator surface and a sponge opening. The sponge member is secured relative to the tube member, and the texture material is forced out of the tube member through the container opening and the sponge opening and onto the applicator surface. The applicator surface of the sponge member is brought into contact with the destination surface to transfer texture material on the applicator surface to the destination surface.

Abstract: Spent sputtering targets are refurbished by filling the depleted region of the target with new sputter material using a hot isostatic pressing or HIP'ing technique.

Abstract: Castings for gas turbine parts exposed on one side to a high-temperature fluid medium have cast-in bumps on an opposite cooling surface side to enhance heat transfer. Areas on the cooling surface having defectively cast bumps, i.e., missing or partially formed bumps during casting, are thermally sprayed to provide a metallic cooling enhancement surface layer to salvage the part.

Abstract: Process for producing a multi-layer lacquer finish, in which a surfacer coating compound is applied to a substrate optionally pre-coated with a priming layer and/or further coating layers, and a top coating comprising a color-imparting and/or special-effect-imparting base lacquer layer and a transparent clear lacquer layer, or a top coating comprising a pigmented one-layer top lacquer, is then applied, in which the surfacer coating compound which is used is one which either contains binders which are curable exclusively by free radical and/or cationic polymerization, wherein the said binders are cured by means of high-energy radiation, or is one which contains binders which are curable by free radical and/or cationic polymerization, wherein the said binders are cured by means of high-energy radiation, and additionally contains chemically cross-linking binders.

Abstract: Provided is a method for recovering a slip resistance value of a basalt-tiled road surface by treating with an acid solution.

Abstract: A method for restoring thickness to load-bearing components of gas turbine engines, and for repairing a honeycomb structured gas turbine engine component. A surface of the component such as the backing surface of a honeycomb component after honeycomb removal is roughened and cleaned. A selected build-up material is deposited onto the substrate by high velocity oxy-fuel deposition or low pressure plasma spray. The component is heat treated to enhance the bond between the deposited material particles, and between the deposited material and the substrate by diffusion.

Abstract: The invention relates to a process for repairing coated substrate surfaces comprising the following successive steps:

Abstract: Defective, e.g. worn or substandard, carbon-carbon fibre composite materials such as frictional materials in brakes or clutches may be restored and/or upgraded by impregnation with a molten reactive metal source comprising a carbide-forming metal or a derivative thereof such as an oxide.

Abstract: A silane coating (32) is provided which affords non-stick properties to a metal surface (20, 22) of a cooking utensil (10) and which can be provided with colorant (42) to impart a stable color appearance, including white, to the utensil (10). An easy repair method is also described.

Abstract: A process for the multi-layer repair coating of substrates, wherein a base coat layer of a water-based base coat coating composition is applied to a precoated substrate and a clear coat layer of a transparent clear coat coating composition is applied to the base coat layer thus obtained, characterised in that the base coat layer of the colour- and/or special effect-imparting water-based base coat coating composition is applied in three successive spray passes, and each spray pass is executed such that uniform, adjacent and substantially non-overlapping coating strips are applied to the substrate surface to be coated.

Abstract: A method of maintaining as well as restoring the condition of weathered asphalt shingles and strips which are applied to flat roofs, pitched roofs, or vertical walls. The process involves applying resaturant neat or as a water emulsion. Suitable resaturants include fatty acid methyl esters, petroleum distillates, and water emulsions thereof. The process restores the suppleness and softness of the weathered shingles or strip and adds about three years to the lifetime of the roof. The process may be repeated for additional lifetime extension.

Abstract: The invention is directed to a process for multilayer coating of substrates which comprises

Abstract: A used developer-carrying member having a resin coating layer on a substrate is regenerated through a step of scraping the resin coating layer of the used developer-carrying member to form a developer-carrying member surface having unevenness showing a central line-average roughness Ra of at most 0.8 &mgr;m, and a step of coating the developer-carrying member surface having the unevenness with a coating layer of a resinous composition comprising at least a binder resin and electroconductive fine powder. The regenerated developer-carrying member can be reinstalled in a developing apparatus and subjected to repetitive electrophotographic image forming cycles.

Abstract: A method for forming a metal-containing layer on a substrate is disclosed. A slurry of the metal is first deposited on the substrate; followed by heating to remove volatile material from the slurry, and to form a layer of the metal. In another embodiment, a slurry of aluminum is deposited over the slurry of the metal, before or after the metal has been heat-treated to some degree. A diffusion heat treatment results in a coating which includes the noble-metal aluminide compound. Related articles are also disclosed.

Abstract: A process and an apparatus for the repair of the protective coating on converted can ends comprises a repair agent application station for the selective application of a radiation-curable repair agent onto at least a portion of the converted can ends, a repair agent curing station for the curing of the repair agent applied to the converted can ends, and a transport system for conveying the converted can ends from the repair agent application station to the repair agent curing station.

Abstract: It is a method of repairing a ceramic coating of an article after use of this article in a high temperature environment disclosed. The ceramic coating is removed locally at spalled areas, at the areas where the ceramic coating is removed locally a mixture including a powder of zirconia stabilized with one or a combination of yttria, calcia, scandia, magnesia, ceria and oxides of the rare earth group, and hydrated metallic halides as a binder is applied and the applied ceramic powder is dried.

Abstract: A method for coating the sawed edges of gypsum wallboard to prevent dusting of gypsum particles in clean rooms. The method includes applying a water-dispersible polymers to the sawed edges of gypsum wallboard. The polymer forms a water-insoluble salt through an ion exchange with the calcium found in gypsum wallboard. The result is a tough, tack free, fast-drying coating that substantially reduces the levels of airborne gypsum particles that come from the sawed edges of gypsum wallboards.

Abstract: Castings for gas turbine parts exposed on one side to a high-temperature fluid medium have cast-in bumps on an opposite cooling surface side to enhance heat transfer. Areas on the cooling surface having defectively cast bumps, i.e., missing or partially formed bumps during casting, are thermally sprayed to provide a metallic cooling enhancement surface layer to salvage the part.

Abstract: A method is provided for refurbishing a service operated metallic coating on a substrate alloy, the coating including at least within a coating outer surface at least one oxide chemically grown from at least one coating element, for example Al, and chemically bonded with the coating outer surface as a result of thermal exposure during service operation. Growth of the oxide has depleted at least a portion of the coating element from the coating. The method comprises removing the oxide from the coating outer surface while substantially retaining the metallic coating, thereby exposing in the coating outer surface at least one surface void that had been occupied by the oxide. The retained metallic coating is mechanically worked, substantially without removal of the retained coating, to close the void, providing a treated metallic coating surface over which a refurbishing coating is applied.

Abstract: Silica-based refractories are impregnated with protective material that is more resistant towards attack by corrosive species. The protective material coats the surface of the refractory matrix and fills some of the cavity volume of its pores, crevices, surfaces imperfections and irregularities. The protective material is positioned by impregnating the refractory with a precursor which, under the input of energy, is converted into the corrosion resistant protective material.

Abstract: A method for repairing a defect, such as a scratch, in a clear coat layer of a composite color-plus-clear coating system is described. First, a sufficient amount of catalyzed transparent coating composition is directed through a cylindrical tube attached to a container for the coating, into the scratch so as to cause a portion of the catalyzed transparent coating composition to overfill the volume of the scratch. The catalyzed transparent coating composition is then allowed to cure, whereupon the excess above the uppermost surface of the clear coat layer is then lightly sanded away to produce a substantially planar surface. The area can then be optionally polished. In this manner, scratches in the clear coat layer of composite color-plus-clear coating systems can be repaired while simultaneously restoring the original thickness of the clear coat layer.

Abstract: The present invention relates to a single-packaged epoxy resin coating composition comprising: (A) an epoxy resin having at least one epoxy group in a molecule and capable of being dissolved in the following organic solvent (D), (B) a ketimines compound having at least two primary amino groups blocked with a carbonyl compound and having no other amino groups than the above blocked amino groups, (C) a dehydrating agent and (D) an organic solvent, wherein the above organic solvent (D) comprises a hydrocarbon base solvent selected from the group consisting of an aliphatic hydrocarbon base solvent and an aromatic hydrocarbon base solvent having a boiling point of 148° C. or higher in a proportion of at least 95% by weight based on the above organic solvent (D).

Abstract: A more controllable fibrous acoustic ceiling patch or textured material in the form of a sprayable composition includes a base, a filler, an adhesive binder, an anti-foaming agent, a suspension agent, and fibrous materials. The more controllable acoustic ceiling patch is storable and dispensable from a pressurized dispenser having a delivery nozzle. An aerosol system with a spray nozzle is included on the container for selective discharge of the textured material onto a prepared patch area, which may be on a drywall or support panel so as to match and blend with the surrounding acoustic ceiling surface area in order to provide a continuous and unbroken coextensive surface texture of mechanically and visually matched material.

Abstract: The present invention provides a repair coating process, the repair coating process consisting of grinding the part of an intermediate coating surface to be repaired and then performing a repair coating of the ground part with a thermo-curable organic solvent type repair paint (F) containing a neutralized product of a hydroxyl group-containing resin having an acid value of 5-100 mgKOH/g and a crosslinking agent in forming multilayer coating films by coating an electro-deposition paint (A) and an intermediate paint (B) and curing them by heating, then, after performing a repair coating on the intermediate coating surface, successively coating wet-on-wet a white water base coat (C), a pearly base coat (D), and a clear coat (E), and then curing by crosslinking the films of the above-mentioned coats (C), (D), and (E) simultaneously through heating.

Abstract: A thermally-sprayed non-skid coating that is comprised of an aggregate material embedded within a layer which is comprised of at least one coalesced, thermoplastic polymer. The aggregate has a melting temperature greater than the melting temperature of the at least one coalesced, thermoplastic polymer, and the coating contains no volatile, organic compounds.

Abstract: The process of this invention applies at least one coating composition to an optionally precoated substrate and then cures the thus obtained coating layer(s), whereby at least one of the coating layers is prepared from a coating composition that can be chemically cross-linked solely by radical polymerization of olefinic double bonds, the resin solid of the composition has a C═C equivalent weight from 100 to 10,000, preferably from 100 to 5,000, and the curing of the coating layer(s) is carried out with NIR radiation in the wave length range from 760-1500 nm.

Abstract: A method for applying a protective coating to a surface. The method is achieved by applying a radiation curable reactive coating material to the surface and exposing the applied coating to a source of light for a predetermined time and at a predetermined intensity to effect polymerization of the coating.

Abstract: The present invention relates to a method of introducing enhanced biofouling release properties to intact biofouling release coatings by exposing the surface of the biofouling release coating to a restorative compound for a time sufficient to effect enhancement of biofouling release properties. Also disclosed are kits useful in carrying out these processes.

Abstract: A method of repairing a thermal barrier coating on a component designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The method more particularly involves repairing a thermal barrier coating on a component that has suffered localized spallation of the thermal barrier coating. After cleaning the surface area of the component exposed by the localized spallation, a ceramic paste comprising a ceramic powder in a binder is applied to the surface area of the component. The binder is then reacted to yield a ceramic-containing repair coating that covers the surface area of the component and comprises the ceramic powder in a matrix of a material formed when the binder was reacted. The binder is preferably a ceramic precursor material that can be converted immediately to a ceramic or allowed to thermally decompose over time to form a ceramic, such that the repair coating has a ceramic matrix.

Abstract: A glue-gun applied hot-melt radar-absorbing material (RAM) and method of use thereof is provided. The hot-melt radar-absorbing material composition comprises: (a) 70 to 85 wt % carbonyl iron powder; (b) 2 to 10 wt % of a metal deactivator; and (c) balance a thermoplastic polyurethane. The method for repair of a body comprising a radar-absorbing material, comprises: (a) formulating the hot-melt radar-absorbing material of the present invention; (b) forming the hot-melt radar-absorbing material into a shape; (c) applying the hot-melt radar-absorbing material in a molten state onto the body; and (d) allowing the hot-melt radar-absorbing material to cool to room temperature. The shape of the hot-melt RAM is advantageously a “glue stick”, which is configured to go into a glue gun. The repair operator loads the glue stick into the glue gun and pulls the trigger. The glue gun heats the glue stick, and the molten material is applied to the area to be repaired.

Abstract: This invention comprises a method of refurbishing and removal of scratches from glass and a glass assembly which is resistant to scratches. The scratched glass is sanded to remove scratches and, after application of a bonding pumer and mounting of gasket a preheated acrylic is applied. After curing a polyvinyl sheet is applied to protect the acrylic. The process can be applied to “on board” repair of scratched glass on public vehicles.

Abstract: An apparatus for finishing marine vessel surfaces including track-mounted robots, movable relative to the vessel being finished. The robots are controlled by a computer, with each robot having a plurality of tools attachable to the robots both for mapping the surface contours of the vessel and for painting or otherwise finishing the surface.

Abstract: A method for restoring the outer surface of a hard substrate such as a glazed bath tub which includes the steps of cleaning and removing stains from the surface to be restored, providing a suitable dry surface for permanent application of restorative compositions, wiping a resealant composition over the dried outer surface; and wiping a glossing composition over the dried resealed outer surface. A composition suitable for cleaning the outer surface may comprise an aqueous gel and/or an abrasive. The resealant composition may comprise a water based urethane copolymer. The glossing composition may comprise a water based, metal interlocking urethane or acrylic copolymer.

Abstract: In accordance with the present invention, there are provided methods for enhancing the color of minerals useful as gemstones. Invention methods are relatively inexpensive to carry out, avoid the use of hazardous materials, and require no specialized equipment.

Abstract: A decoloring apparatus for an image forming material comprising means for bringing a solvent into contact with an image forming material formed on a paper sheet and containing a color former, a developer and a decolorizer, and means for removing a residual solvent from the paper sheet.

Abstract: A ceramic welding process for the formation of a coherent refractory repair mass on a surface of an electrocast refractory material includes providing an electrocast refractory material having a surface to be repaired; providing a first powder mixture comprised of combustible particles, refractory particles, and at least one constituent which enhances production of a vitreous phase in the coherent refractory repair mass; and projecting the first powder mixture in a gas stream containing oxygen against the surface to be repaired so that the combustible particles react with the projected oxygen against the surface in a highly exothermic manner and release sufficient heat of combustion to form a first coherent refractory repair mass.

Abstract: The present invention provides a method for repair coating characterized by applying an epoxy-polyamine resin base coating composition comprising an epoxy resin having at least one epoxy resin in a molecule and an amine base curing agent as resinous components on a deteriorated coating film which is selected from a tar epoxy resin coating film, a tar urethane resin coating film, a modified epoxy resin coating film, a modified urethane resin coating film, an epoxy-polyamine resin coating film and an epoxy urethane resin coating film and which has a water content of 0.3 to 5% by weight.

Abstract: A computer controlled method utilizing robots for the fairing and painting of marine vessel surfaces comprising the steps of analyzing the vessel hull and/or superstructure for imperfections; applying a fairing compound to the imperfections; smoothing the imperfections into alignment with the hull and/or superstructure; and applying a final paint finish to the hull and/or superstructure.

Abstract: A cold spray process (20) for applying an abradable coating (16) to a substrate material (12). A bond coat layer (14) and/or an abradable coating material layer (16) are applied to a substrate (12) by directing particles of the material toward the substrate surface at a velocity sufficiently high to cause the particles to deform and to adhere to the surface. Particles of the bond coat material may first be directed toward the substrate surface at a velocity sufficiently high to clean the surface (24) but not sufficiently high to cause the particles to deform and to adhere to the surface.

Abstract: A process for preparing an old porcelain or ceramic substrate and refinishing with an epoxy coating top coat, where the old substrate is treated with an aqueous solution of citric acid prior to the step of coating with epoxy. In preferred aspects, the old substrate is treated with aqueous calcium carbonate solution prior to treating with the citric acid solution.

Abstract: Improved roadway crack sealing apparatus (20) is provided which includes a mobile vehicle (26) with a forward crack sealing assembly (22) and a following finishing assembly (24). The assembly (22) includes laterally spaced apart fill and sealant hoppers (30, 36) each equipped with selectively openable outlets (32, 34, 38) and an elongated roadway crack sighting passageway (128) therebetween. The fill hopper preferably has a pair of outlets (32, 34), with the sealant hopper (38) between the latter so that a crack is sealed by sequential application of fill, sealant and additional fill. In use, an operator within the vehicle compartment (162) visually locates a crack (28) through the passageway(128), and steers the vehicle (26) accordingly; the operator also manipulates appropriate controls for selectively opening the outlets (32, 34, 38). The finishing assembly (24) includes a series of lateral brushes which sweep and finish the sealed crack and adjacent roadway.

Abstract: To provide a method for repairing a coated surface of a vehicle, using an ultraviolet curing resin having excellent quick-drying property, and giving a good finish in a shortened working time, a method for repairing the damage on a coated surface of a vehicle being a depression and/or a depletion of a coating film, which is characterized by comprising the following steps a) to c):

Abstract: The present invention provides a coating composition capable of forming a coating film having good performances such as an adhesive property even if coated on a deteriorated coating film surface of a high rust-preventive coating film of a tar epoxy resin coating material and the like without providing pre-treatment, and a coating method thereof. The above coating composition is a coating composition of an organic solvent type or solventless type comprising an epoxy resin having at least one epoxy group in a molecule and an amine base curing agent as resin components, wherein moisture of 1 to 30 parts by weight per 100 parts by weight of the solid matter of the coating composition is contained.

Abstract: A process for remanufacturing a charging member having at least two layers on a conductive support is described. The process involves carrying out mechanical abrasion to remove at least a surface layer of the charging member, followed by forming a layer thereon. Also, a charging member remanufactured by the process and a process cartridge having the hanging member are described.

Abstract: A method is disclosed for preventing harm caused by constrictions in the cooling holes of gas-cooled parts, in particular of gas turbines and/or burners. These constrictions form because the walls of the gas-cooled parts through which the cooling holes extend and which are covered on their outside with a protective, first coating are provided during the course of an overhaul with a second, repeat coating, and coating material is deposited in the cooling holes. Constant flow ratios in the cooling holes are achieved in a simple manner in that prior to the overhaul, the cooling holes are constricted with first means to an extent that corresponds to the later constrictions created during the course of the second coating. The first means are removed after the overhaul. The first means takes the form of an insert with holes that constrict the flow through the cooling holes.