Abstract: In a process for manufacturing metal sheet gaskets coated with elastomer, as are often used as cylinder head gaskets or as compressor gaskets in refrigerant circuits, it is proposed that the elastomeric coating be applied to the individual metal sheet in a spray coating process in order to be able to carry out the coating with elastomer in a more cost-efficient manner.

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: A method is disclosed for treating the surface of tools made of tool steel, wherein primary carbides are embedded in the tool steel matrix. The thickness of the primary carbides disposed near the surface can be reduced by forming a surface which has point-wise recess; alternatively, the primary carbides can be completely removed. A hard material layer is deposited on this surface. The invention also describes tools made of tool steel, wherein primary carbides are embedded in the tool steel matrix. The primary carbides are significantly recessed, and a hard material layer is deposited thereon.

Abstract: Robotic cladding of an underlying substrate with a composite metallic surface layer on a prepatterned interface with the substrate, is performed by a laser induced surface improvement process whereby a particulate ceramic additive introduced into a matrix mixture forms the surface layer with a permanent non-skid property bonded by intermixing of molten portions of such matrix mixture and the substrate at the interface, enhanced by prepatterning of such interface.

Abstract: The object of the present invention is to provide a process for manufacturing a hydrostatic bearing of porous materials with less performance dispersion, at a high rate of productivity. A work piece is comprised of a base member and a housing. The base member is made of porous bronze and set on the front of the housing. A pressure chamber is formed in the rear side of the base material. The work piece is set in a cutting machine, where the surface of the base material is cut with a single crystal diamond bite. Then, molybdenum disulfide is applied together with a binder onto the surface of the base material, and then baked, thus forming a surface restrictor layer. The work piece is set back in the cutting machine, and the surface portion of the surface restrictor layer is cut with the single crystal diamond bite. After the cutting process, compressed air is supplied to the rear side of the surface restrictor layer via the base material. The flow rate of the compressed air is monitored.

Abstract: By forming a film that comprises a microcrystalline polymer having at least a fluorocarbon group and has a rough surface on a surface of a base material, super-water-repellency is provided, the dew condensation water of an air conditioner, for example, can be easily removed, and the freezing of the fin of the heat exchanger can be prevented. A fin that is made of aluminium is coated with a solution for forming a coating film, in which CF3(CF2)7—(CH2)2—SiCl3 is diluted with nonaqueous cyclohexamethyl trisiloxane at a concentration of 10 vol. % for preparation, to a thickness of 1 to 10 &mgr;m by a brush, and then the cyclohexamethyl trisiloxane is vaporized in an atmosphere having a relative humidity of about 75% at room temperature. CF3(CF2)7—(CH2)2—SiCl3 that remained on the fin is rapidly hydrolyzed with the moisture in the atmosphere, and the moisture in air and a —SiCl3 group dehydrochlorinated to form a microcrystalline polymer on the fin.

Abstract: A method and apparatus for improved stencil/screen print quality is disclosed. The stencil or screen assists in application of a printable material onto a substrate, such as an adhesive to a semiconductor die of a semiconductor wafer during a lead-on-chip (LOC) packaging process. In one embodiment, the stencil includes a coating applied to at least one surface of a pattern of the stencil or screen to retard running of the printable material onto the surface. In another embodiment, the stencil or screen includes a second coating applied to at least one other surface of the pattern to promote spreading of the printable material onto the substrate.

Abstract: Substrate, at least part of at least one of the faces of which has a geometry which is optionally obtained by means of a coating and which differs from that of an ideal uniform, perfectly plane or even slightly curved, sheet, in that it has a bumps-and-hollows relief which can be defined by submicron sizes which, almost in their entirety, fall into at least two different classes, the respective representative values of which vary by a factor of at least 5 or of at most 1/5; applications of this substrate to anti-stain and anti-mist or anti-rain glazing; processes for preparing the substrate.

Abstract: A process for cutting a fiberglass panel comprises cutting the fiberglass panel with a liquid jet containing a sealant which coats and adheres to the cut edge of the panel, and thereafter curing the sealant to harden and encapsulate the edge of the panel to reduce the emanation of fiberglass dust particles therefrom.

Abstract: A method and shield assembly 12 for use in processing a flow directing assembly 10, such as a stator vane or rotor blade, is disclosed. Various details are developed for the construction of the shield assembly and for the method of masking the flow directing assembly. The shield assembly has a shield having two sides 52, 56 and at least one tab 56 which extends from one of the sides and through the other side and is pressed against the other side. In one embodiment, the method includes exerting a force against the shield to block movement of the shield from the installed position. The shield assembly might include a locking member for this purpose which has a projection 106a which is attached to the shield or a locking member 42 which is not attached to the shield and which has a tab 114 which engages the shield and a projection 112 which engages the airfoil. Alternatively, the shield assembly might include a clamp 92 which presses the shield against the airfoil.

Abstract: Coating for the tube sheets and heat exchanger coolant tubes extending from them, especially steam condensers, based on hardening plastic mixtures, obtainable by cleaning the surfaces provided for coating using an abrasive; closing the tube inlets and outlets (or tube inlets only) with removable plugs; applying at least one layer of a hardening plastic coating on the tube sheet; allowing the coating to harden so that additional mechanical processing can ensue, and processing the surface; removing the plugs from the tube inlets and outlets (or tube inlets only) as well as applying at least one layer of a hardening plastic coating at least in the inlet area of the coolant tube, and allowing it to harden, coating of the coolant tubes by timed applications being done reactively to the tube sheet coating and the coolant tube coating exhibiting in comparison to the tube sheet coating a greater elasticity having an elongation at tear at least 2% greater in accordance with ASTM D522 with respect to the elongation at

Abstract: A locking member for engaging a shield 40 which is disposed during processing about an airfoil 24 of a flow directing assembly 10, such as a stator vane or rotor blade, is disclosed. Various details are developed for the construction of the locking member. In one embodiment, the locking member is separate from the shield and has projections 112, 116 that each engage an opening 36a, 36b in the airfoil and tabs 114, 118 which engage an opening 78, 84 in the shield. In another embodiment, the shield has a projection 106a which is attached to the shield.

Abstract: A corroded superalloy or heat resistant steel part, in particular a gas turbine component like a gas turbine blade, having a surface with products or corrosion is refurbished. The invention the surface is cleaned, in particular mechanically or chemically, and an aluminide coating is applied to the cleaned surface. Subsequently, the aluminide coating is removed, whereby all products of corrosion which have still remained in the part to be refurbished are removed as well.

Abstract: A shield 40 for use in processing a flow directing assembly 10, such as a stator vane or rotor blade, is disclosed. Various construction details are developed for the shield. The shield has two sides 52, 56 and at least two tabs 56, 58 which each extend from one of the sides and through the other side.

Abstract: A method for making a decal structure includes the steps of: (a) providing a base paper having a top face and a bottom face; (b) printing a pattern on the top face of the base paper; (c) providing a looped spacing polymeric coating on the top face of the base paper around the pattern; (d) cutting the base paper into a dimension slightly greater than that of the looped spacing polymeric coating; (e) infusing a polyester into the looped spacing polymeric coating so as to form a transparent outer layer covering the pattern in the looped spacing polymeric coating (22); and (f) cooling the polyester to cure so as to form a final decal structure, wherein the decal structure includes a base paper having a top face and a bottom face, a pattern printed on the top face of the base paper, a looped spacing polymeric coating coated on the top face of the base paper around the pattern and having an inner edge and an outer edge, and a transparent outer layer mounted in the inner edge of the looped spacing polymeric coating

Abstract: Method of making a mask assembly by providing a heat resistance mask substrate having an exposed surface with a surface smoothness less than 2000 micro inches, uniformly spraying a thermoset epoxy organic coating onto such exposed surface in one or more layers to provide a coating having (e.g., a thickness equal to or less than about 0.005 inches), a smoothness characterized by an average profilometer reading (Ra) of no greater than 1.5 micrometers, said coating being devoid of pores that exceed about 0003 inch in size, and flame polishing all or a portion of such coating to effect a surface finish of about 1.0 micrometers. A mask assembly which is useful in masking areas from thermal spray particles, comprising a heat resistance substrate presenting an exposed grit blasted surface having a smoothness of less than 2000, and a thin thermoset epoxy coating bonded to said exposed surface and having a surface smoothness characterized by an average profilometer reading (Ra) no greater than 1.5.

Abstract: A method of protecting from corrosion the junction between adjoining plastics coated, metal pipes, in a pipeline installation or the like, comprising roughening the exposed surface of the plastics coating on either side of the junction region, applying a primer over the abraded region of the plastics coating, allowing or causing the primer to cure or dry, and subsequently applying over the said junction region and over the regions primed with said primer, a protective top coat.

Abstract: In a glass substrate and thin film combination, the glass substrate has a surface which is at least partially non-smooth, and the thin film is provided on the glass substrate in contact with the non-smooth part of the surface. Such a glass substrate and thin film combination is produced by forming a non-smooth part on at least a part of a surface of a glass substrate; and depositing a thin film on the glass substrate so as to be in contact with the non-smooth part.

Abstract: A shield 98 and method of shielding an airfoil 44 is disclosed. Various construction details are developed which increase the effectiveness of the shield and its reusability. In one embodiment, the shield has a plurality of interdigitated tabs 112,118 which urge the shield against the airfoil surfaces 94,96.

Abstract: The invention relates to a water-repellent glass plate. This glass plate has a glass substrate having a major surface and a water-repellent film formed on the major surface of the glass substrate. The water-repellent film is prepared by an application of a water-repellent agent which is in a liquid form, to the major surface of the glass substrate, while the glass substrate is heated at a temperature of from 90 to 200.degree. C. The glass plate is superior in water repellency duration even under severe environment.

Abstract: Structural ceramic matrix composite material to be employed as automotive engine parts and the like is provided with erosion-resistant qualities in several ways. For one, an erosion-resistant material is applied to the surface as by plasma spraying. The erosion-resistant material can also be mixed with the fibers of the material, particularly near the surface.

Abstract: In general terms, the method of the present invention is one for providing an anodic coating to a member having a metal surface being subject to oxidation. In broadest terms, the method comprises the steps of: (a) obtaining a member having a ferrous metal surface (i.e. the term "ferrous" intended as meaning containing iron without regard to oxidation state), the metal surface having one or more layer(s) of oxidized metal; (b) removing the layer(s) of oxidized metal from the ferrous metal surface; and (c) depositing one or more layer(s) of an emeraldine base polyaniline polymer onto the ferrous metal surface.

Abstract: A process for manufacturing wear and corrosion-protected surfaces on plasticized screws for injection molding machines forms the wear-resistent layers over the entire screw surface in two steps. A laser technique is used to melt additives into the surfaces of the screw rib, flank and top as well as the screw base by high-speed flame spring with hard metallic and/or ceramic substances.

Abstract: A method for applying a coating to the tips 46 of an array of flow directing assemblies 42 such as an array of rotor blades or stator vanes is disclosed. various steps in the method are developed which decrease cost and increase the efficiency of the method. In one particular embodiment, the step of surface preparation and coating applications are performed with the same fixture without removing or reinstalling the assemblies.

Abstract: A protective mask is formed of an annular magnetic sheet. Such a sheet may be used to cover annular surfaces to be protected. Adhesive is formed on one side of the sheet. In use, a fluid impervious sheet is adhered to the first side and across the central opening of the annular magnetic sheet. A method of protecting a metallic workpiece during treatment, the metallic workpiece having a portion to be protected during treatment, for example a raised face of a flanged pipe, the method comprising the steps of magnetically attaching a protective mask to the portion of the metallic workpiece to be protected, the protective mask being formed of an annular magnetic sheet and treating the workpiece, such as by painting or sandblasting. A method of protecting a pipe during transportation of the pipe, the pipe having a flanged pipe end and a pipe bore, the method comprising the steps of magnetically attaching a circular protective sheet to the flanged pipe end over the pipe bore; and transporting the pipe.

Abstract: A vacuum molding-compatible mat including about 10 weight percent to about 99 weight percent glass monofilaments having a mean average length ranging from about 5 to about 150 millimeters and coated with a filament coating composition which is compatible with a thermosetting matrix material for forming a vacuum molded composite; and glass fiber strands having a mean average length ranging from about 5 to about 150 millimeters and coated with a strand coating composition which is compatible with the thermosetting matrix material for forming the vacuum molded composite; wherein the mat has a mat surface weight greater than about 200 grams per square meter, the glass monofilaments and glass fiber strands are essentially uniformly distributed throughout the mat and at least a portion of the glass monofilaments are entangled with at least a portion of the glass fiber strands.

Abstract: An improvement is proposed in the preparation of, for example, a ceramic heater consisting of a substrate plate of boron nitride, a patterned layer of pyrolytic graphite (PG) on the substrate to serve as an electric resistance element and an overcoating layer of pyrolytic boron nitride (PBN) in a process comprising the steps of depositing PG on the substrate surface, pattern-wise removing the PG layer by mechanical working to form grooves and depositing PBN all over. According to the inventive improvement, which can be obtained by forming the grooves in such a fashion that the angle between the direction of a normal line to the facet surface formed by the mechanical working and the growing direction of the substrate of boron nitride is in the range from 0.degree. to 45.degree. so that the internal stress caused in the overcoating layer, which is due to the anisotropy in the thermal expansion of boron nitride, is decreased to prevent the overcoating layer from occurrence of cracks and falling during service.

Abstract: Coating for the tube beds and heat exchanger coolant tubes extending from them, especially steam condensers, based on hardening plastic mixtures, obtainable by cleaning the surfaces provided for coating using an abrasive; closing the tube inlets and outlets with removable plugs; applying at least one layer of a hardening plastic coating on the tube bed; allowing the coating to harden so that additional mechanical processing can ensue, and processing the surface; removing the plugs from the tube inlets and outlets as well as applying at least one layer of a hardening plastic coating at least in the inlet area of the coolant tube, and allowing it to harden, coating of the coolant tubes by timed applications being done reactively to the tube bed coating and the coolant tube coating exhibiting in comparison to the tube bed coating a greater elasticity having an elongation at tear at least 2% greater in accordance with DIN 53152 with respect to the elongation at tear of the tube bed coating, and process for coatin

Abstract: An in situ vehicle bed liner together with a method for production of the liner is provided. A vehicle bed is prepared by sandblasting and cleaning, and surfaces adjacent to where the liner is to be formed are protected. A two component polyurethane, polyurea or polyurethane/polyurea hybrid is utilized to create the liner, with the two components maintained separately until application to the vehicle bed. A spray gun is used to create the sides of the liner, mixing together the two polymer components just prior to exiting the spray gun. The polymer composition reaches it gel point almost immediately upon contact with the vehicle bed to prevent running or sagging of the polymer material. The polymer is sprayed on the sides of the vehicle bed to produce contiguous sides of the liner and allowed to gel. The two component polymer material is then poured on the floor of the vehicle bed and adjoins the polymer sides of the liner to produce a contiguous liner. The polymer is then cured to form the vehicle bed liner.

Abstract: 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.

Abstract: Apparatus for coating the bottom rim surface of a container using a vacuum conveyor for holding and transporting a plurality of empty containers with the bottom rim surfaces exposed so that the bottom rim surfaces may be passed over a coating applicator roll and through a curing oven to provide the bottom rim surfaces with a cured coating and wherein the vacuum conveyor is wide enough so that a plurality of the bottom rim surfaces may be coated at the same time and then passed through the curing oven. Also, the durometer of the application roll can be varied so as to apply a coating of uniform thickness or a coating of varying thicknesses.

Abstract: A coated article comprising a stainless steel base having an etched surface and having on the etched surface a coated layer. The coating layer may comprise a fluororesin and can be provided: after sensitizing the stainless steel base through heating, treating with an acid, subjecting to etching, and subjecting to a solution treatment; after immersing in an aqueous acid solution or an aqueous ferric chloride solution to cause the base to be dissolved to such an extent that the gloss of the surface disappears; after uniformly abrading the surface of the base through buffing or blasting to the weight corresponding to a thickness of 1.0 .mu.m or more of the base, immersing in an aqueous acid solution or an aqueous ferric chloride solution to cause the base to be dissolved to such an extent that the gloss of the surface disappears, and subjecting to etching; or after subjecting to electrolytic etching at 15.degree. C. or less.

Abstract: A new composition for the protection of a body of concrete sodium nitrate, sodium carbonate, sodium sulfate, calcium chloride, calcium carbide, lime, cement, and sand in a percent ratio of (0.9-1.8):(2-3):(2.5-3.6):(0.05-0.15):(0.75-1.15):(0-8-1):(36-40):(49-39.3 ) mixed with 8 to 10% of water. A process for preparing the composition involves comminution of certain components to a predetermined range of particle size and a treatment to insure certain ranges of moisture content of various components of the composition. A new method for the application of the protective composition involves the preparation of the surface being protected to increase the exposed surface area of the surface being protected by a factor of 1.15 to 1.36.

Abstract: A method for manufacturing a hinged sheet having an inorganically filled structural matrix includes mixing together a water-dispersible organic polymer binder, an inorganic aggregate material, a fibrous material, and water in order to form a moldable inorganically filled mixture in which the components therein are substantially homogeneously dispersed. The inorganically filled mixture is formed into a substantially hardened sheet having an inorganically filled matrix in a manner such that the water is removed by evaporation. The sheet is then scored to form a hinge in the inorganically filled matrix. Alternatively, a score can be pressed into a surface of the sheet prior to drying in order to form a scored sheet which is then dried.

Abstract: A reusable magnetic masking member for keeping a surface area of a metal object from being painted during a painting operation. The magnetic masking member includes a flexible magnetic sheet of material which is magnetically attached to the surface area of the metal object and includes an exterior vinyl film backing which may be cleaned of excessive paint after a number of reuses and repeated paintings.

Abstract: A method of treating a light metal cylinder bore wall to adherently receive a thermally sprayed metallic coating, that comprises (a) honing the wall to produce a net cylinder shape surface by use of spiral overlapping cross-abrasions having certain peaks and valleys of the abrasions folded over and molded to create tears, folds and undercuts rendering a hook and ladder effect, the honing being carried out with the use of a machining coolant to prevent burnishing of the walls; (b) either concurrently or shortly after step (a), washing the honed surface with a hot alkaline solution comprising (i) a non-soaping aluminate forming agent (sodium xanthate) that produces a residue on the walls, and (ii) surfactants that facilitate wetting of the walls even when some steam bubbles may be present; (c) rinsing the washed surfaces without disturbing the residue; and (d) thermally spraying a metallic bond coat and top coat on the honed and washed surface to render adhesion between the coating and prepared surface that is

Abstract: A method of preparing and coating cylindrical bore surfaces of an aluminum workpiece that comprises (a) inserting and rotationally reciprocally moving a plurality of honing elements against the bore surface with a pressure of at least 30 psi to effect a pattern of spiral overlapping abrasions on said surface, each element being constituted of multifaceted, irregular-shaped, abrasive particles (i.e., diamond or SiC) having a particle size of 30-1300 micrometers. The particles, when in contact with the surface, plow micro-sized, non-smooth and irregularly spaced grooves in the aluminum workpiece resulting in spiral peaks and valleys along the direction of movement of the particles, whereupon repeated reciprocation and rotation of the elements (i.e.

Abstract: A process is disclosed for depositing diamond onto a small shaped graphite article by chemical vapor phase deposition, which includes placing the shaped graphite article in a suspension of diamond powder in a liquid, agitating the suspension containing the shaped article, removing the shaped graphite article from the suspension and drying it, and then carrying out the chemical vapor phase deposition of the diamond. Also disclosed are diamond coated shaped graphite articles (e.g., diamond coated graphite fibers having fiber diameters less than about 100 microns).

Abstract: According to this invention, a novel marking method for block gauges employing an improved electron discharge marking approach is provided. The method for marking on the surface of a block gauge, comprising:preparing a block gauge with electric conductivity or partial conductivity;immersing said block gauge in an insulating oil with cooling circulation sufficient to maintain the oil at a temperature; andapplying to said block gauge a discharge current and a modulated pulse width to produce recessed markings.In some embodiments of this invention, the temperature is an ambient temperature, the discharge current is between 0.1 to 10 amperes, the modulated pulse width is between 1 to 100 microseconds and preferably between 1 to 20 microseconds, and the surface roughness of the recessed markings is within 10 .mu.m and preferably within 1 .mu.m.

Abstract: A process and device for manufacturing cut threads according to which glass threads composed of continuous filaments are coated with a liquid non-aqueous size, which can react under the effect of actinic radiation. The threads are cut by a member which is also used to draw or entrain the threads mechanically before they are subjected to actinic radiation.

Abstract: Objects which have been abraded are coated with a coating material which is normally solid at room temperatures. The material is liquified at elevated temperatures and sprayed onto the cooler objects in a heated cabinet, whereupon the material at least partially solidifies on the object. Thereafter, heat is applied to the coating material to cause it to flow out over the coat surface. A cooled conveyor system prevents disruption of the coating material. Overspray is maintained in liquified form within the cabinet where it is reclaimed and flows to a heated sump for direct recirculation to the spray apparatus. There are no deleterious solvent emissions. Apparatus and methods are provided.

Abstract: Compositions and methods for manufacturing containers from sheets having a hydraulically settable matrix. Suitable compositions are prepared by mixing together a hydraulic binder, water, and appropriate additives (such as aggregates, fibers, and rheology-modifying agents) which impart predetermined properties so that a sheet formed therefrom has the desired performance criteria. Hydraulically settable sheets are formed from the mixture by extrusion, then calendering the sheets using a set of rollers and then drying the sheets in an accelerated manner to substantially harden the sheets. The resulting hydraulically settable sheets may have properties substantially similar to sheets made from presently used materials like paper, cardboard, polystyrene, or plastic. The sheets can be laminated, corrugated, coated, printed on, scored, perforated, cut, folded, rolled, spiral wound, molded, assembled and seamed to mass produce articles of manufacture from the sheets such as food and beverage containers.

Abstract: A method and composition for coating an automotive brake rotor to render it corrosion resistant without impeding the braking function of the rotor, includes cleaning the rotor and thereafter applying a coating composition thereto which composition includes an inorganic alkali metal-silicate binder and a finely divided metal admixed therewith.

Abstract: A process for producing a nitrogen-alloyed stainless steel layer on steel by applying nitride containing mixed metal powder or stainless powder to the steel surface, and thereafter treating the steel with laser beams.

Abstract: A process is disclosed for coating a ceramic composite in which the composite has a pattern of grooves cut into the surface followed by coating to increase adhesion and inhibit cracking of the coating.

Abstract: A repair and rehabilitation treatment process for reinforced concrete structures involves the removal of concrete from above rebar or other metal reinforcement material in the concrete structure. After removal of concrete, the metal reinforcement materials are saturated with corrosion inhibiting agents. Saturation is best achieved by multiple spray applications of the corrosion inhibitor. The cavity in the concrete structure with the treated rebar or other metal reinforcement materials is then backfilled and/or overlaid with repair concrete. Preferably, the repair concrete includes corrosion inhibitors which will diffuse to the rebar over time or is a low permeability concrete that reduces the rate of diffusion of chloride corrosion causing agents to the rebar. The repair and rehabilitation process significantly increases the concrete structure's service life.

Abstract: There is now provided a method of manufacturing a coated ceramic body with improved performance when used as a tool insert for metal cutting purposes. By subjecting the body after the coating to a hot isostatic pressing operation at a pressure of 10-300 MPa and a temperature of >1200.degree. C., an improved adherence of the coating has been achieved. The method is particularly applicable to whisker-reinforced ceramic composites.

Abstract: A quantity of at least one odorous substance that is physiologically impossible to perceive by the human sense of smell, but which is sufficient to be perceived at a distance by an animal known to be capable of finding the origin of the odor emitted by said odorous substance or substances and/or that causes the animal to exhibit a given behavior in its presence, is affixed to the object to be marked in a manner not identifiable by the human eye. Detection by animals such as canines and insects (cockroaches, bees and butterflies) can be used; the odorous substances will in particular comprise substances known to be capable of being detected specifically and spontaneously by an animal at extremely low thresholds (.alpha.-ionone for the canine), or pheromonal (sexual or warning) substances that, in the animal located at a distance, bring about a modification of its behavior.

Abstract: The process permits applying a fluorocarbonated resin base coating on a flat metallic support (4). According to the invention, this coating is applied in a continuous manner, directly on the support (4) by serigraphy. Use particularly to coat cooking utensils with a layer of fluorocarbonated resin. (See FIG. 2).

Abstract: There is provided a method for treating a surface which is to be bonded to another surface, the method comprising displacing a portion of the surface material to a position such that the displaced material, while remaining an integral part of the surface, forms a burr which is adapted to mechanically engage a flexible material placed adjacent thereto to thereby provide a mechanical interlocking action.