Abstract: The present invention relates to a novel process for forming metal matrix composite bodies. Particularly, an infiltration enhancer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere are in communication with a rigidized filler material or a rigidized preform, at least at some point during the process, which permits molten matrix metal to spontaneously infiltrate the rigidized filler material or rigidized preform. Such spontaneous infiltration occurs without the requirement for the application of any pressure or vacuum. In one embodiment of the invention, a filler material or preform can be rigidized by firing and at least partially sintering the filler material so as to provide a three-dimensionally interconnected network of sintered filler material. In another embodiment of the invention, a refractory material mixture is contacted against an exterior surface of a preform or filler material and at least at some point during the process becomes structurally supportive.

Abstract: Disclosed herein is a method of preparing an InSb thin film, which comprises a step of physically sticking InSb powder onto a major surface of a substrate, and a step of depositing an InSb thin film on the major surface of the substrate provided with the as-stuck InSb powder by a method such as vacuum evaporation.

Abstract: A method of making a laminate and articles of furniture made from the laminate are disclosed wherein a transparent acrylic or polycarbonate sheet is coated with a clear urethane coating composition to at least a portion of one surface of the acrylic or polycarbonate composition sheet. The coated sheet is then treated with a water-based or latex color coating composition over the urethane coating. A urethane primer-surfacer coating composition is then applied over that portion of the sheet to which the color coating has been applied. The surface of the sheet is then adhesively bonded to a backing member, in which the uncoated surface of the acrylic sheet layer forms the outer layer of the laminated article. Preferably, the urethane coating composition is a low VOC urethane coating composition containing less than 4.0 pounds of volatile organic compounds per gallon of urethane coating composition.

Abstract: A method and apparatus for repairing a textured ceiling or overhead surface. The method for repairing a textured ceiling or overhead surface consists of the following steps: providing an apparatus; applying an adhesive coating to the textured ceiling or overhead surface; introducing the loose, granular material into the hopper; utilizing said means for propelling the loose, granular material out of the open wide end of the hopper and onto the textured ceiling or overhead surface and finally applying a sealant onto the loose, granular material which has adhered to the textured ceiling or overhead surface. The apparatus for repairing a textured ceiling or overhead surface includes a hopper for holding a loose, granular material, the hopper having an open wide end and an open narrow end, the open narrow end having a smaller cross sectional area than the open wide end.

Abstract: An apparatus for the distribution of pulverulent solids suspended in a gas on a moving substrate, particularly a ribbon of glass, has two walls defining a strip-like cavity positioned transversely to the substrate travel direction and ending in the vicinity of the substrate in a distribution slot. The cavity is provided with at least one partition positioned so as to longitudinally compartmentalize it, each of the compartments being coupled with pulverulent solid injectors and pressurized gas injectors.

Abstract: The present invention relates to a method of producing dull surfaces, in which initially a first paint layer is applied in a first layer thickness and at least one second paint layer is then applied on top of the first paint layer, at least the paint layer applied last being provided with dulling agents and having a dry film layer thickness which is less than the average particle size of the dulling agent. The method is characterized in that the paint layers applied are cured by ionizing radiation.

Abstract: Damage resistant high pressure decorative laminate having excellent scratch, mar, scrape and abrasion resistance, as well as excellent appearance and cleanability and methods of producing same.The method of producing the decorative laminate includes applying a mixture of a liquid thermosetting resin and an abrasion resistant composition, followed by a second coat of the resin without the abrasion resistant composition, or with one having smaller abrasion resistant particles than in the first coat.

Abstract: A method for manufacturing fire retardant cellulose fibers. The method comprises mixing limestone with shredded cellulosic fibers, mixing an acidic agent with the fibers, and depositing water on the mixture of fibers, limestone and acidic agent. A chemical reaction results from the limestone and the acidic agent being combined in a sufficiently moist environment. The reaction liberates carbon dioxide gas which causes a mechanical foaming action, thereby breaking down and distributing the produced particles of the chemical reaction. The preferred acidic agent is ammonium sulfate combined with boric acid. The method preferably includes the application of an anti-static agent in the step that includes mixing the limestone with the fibers. The water deposited preferably comprises an amount substantially in a range from 6%-16% of the weight of the fibers.

Abstract: Carbon or ceramic matrix composites are protected from oxidation at high temperatures by a layer formed from a mixture of solid particles in a binder which is cured and then coated with ceramic material by chemical vapor infiltration.

Abstract: A process for the selective metallization of a substrate and the product formed thereby. An extremely thin (substantially less than the wavelength of light) coat of metallic particles is deposited on a transfer agent. A thin coat of varnish is selectively applied to either the substrate or the transfer agent, the substrate and the transfer agent are laminated together and the varnish is cured. The metallic particles will become absorbed within the varnish and the substrate and transfer agent are then separated. The substrate is provided with a highly polished specular metallic finish in predetermined areas.

Abstract: A process for improving the ability of a metal surface to adhere comprising contacting the metal surface with an aqueous medium comprising a solution of a salt of at least one metal selected from the group consisting of yttrium and metals of the lanthanum series having atomic numbers from 57 to 71 inclusive, and subsequently contacting the metal surface with a solution of organosilane.

Abstract: A metallized epoxy die formed by depositing boron nitride and iron oxide particle layers on the pattern used to form the die and spraying molten metal onto the particle layers followed by casting the epoxy against the exposed surface of the sprayed metal.

Abstract: The present invention relates to a method and apparatus for producing paperboard packaging blanks (trays, lids, cartons, or combinations) in which the application of the barrier coating is combined with the printing of the sales graphics in a single-pass operation which eliminates the need for a separate off-line coating operation.

Abstract: The method for metallizing the surface of dielectric materials according to the invention comprises a first step wherein a metal powder, the size of the grains of which is comprised between 10 and 5000 nm, is deposited and then incorporated into the surface of the dielectric material. In a second step of the method, the dielectric material which is so impregnated with metal, is immersed into an autocatalytic bath to coat the impregnated zones of the material with a layer of the metal contained in the bath in a thickness which is proportional to the immersion time. This method enables to metallize materials such as oxides, polymers and composites containing these oxides and/or these polymers. The characteristics of the metal deposits are controlled, on the one hand, by the type of metal, and the size and the geometry of the metal powder grains and, on the other hand, by the type and the structure of the dielectric materials coated with these deposits.

Abstract: A reference electrode for an electrochemical three-electrode sensor, including a shaft, a platinum electrode embedded in the shaft, a platinum oxide coat at least partially covering the platinum electrode, and a polyhydantoin coat completely covering the platinum oxide coat and any exposed surface of the electrode not coated with platinum oxide.

Abstract: A method of manufacturing a simulated lead light in which simulated opaque lead canes are built up on a surface of a carrier, comprising the following steps:(1) applying lines of an opaque paint to the carrier surface, the lines corresponding to desired positions of the desired lead canes;(2) while the paint is still wet, applying transparent or translucent particulate material so that the particulate material adheres to the wet paint;(3) removing surplus unadhered particulate material.

Abstract: The coating of shredded paper insulation with a powdered or particulate fire retardant agent mixed with an anti-static agent to enhance coating is further improved by applying a precoat of a mixture of fire retardant agent and anti-static agent, the precoat mixture containing only a relatively minor portion of the final fire retardant coating, and subsequently coating the paper particles with the remaining fire retardant agent.

Abstract: A magnetic storage medium is composed of a non-wettable substrate upon which a transient liquid metal layer is deposited and maintained as a distribution of discontinuous liquid features. An intermediate metal layer is subsequently deposited in-situ in an atmosphere comprising oxygen and at least one inert gas. A magnetic layer is then deposited on the intermediate metal layer. The surface topology and magnetic characteristics of the medium are controlled by adjusting the thickness of the TLM layer and the conditions under which the TLM layer, intermediate metal layer, and magnetic layer are deposited.

Abstract: An electromagnetic radiation absorbing material comprises doubly layered core particles dispersed in a dielectric binder material. The first layer dissipates radiation; the second layer is an insulating material which helps prevent the particles from conductively contacting each other, and prevents degradation of the first layer. The absorber may be applied to an electrically conductive material, and an impedance matching material may be used.

Abstract: A method for providing a traffic surface such as a path, roadway, passageway, deck, or airfield runway or taxiway with both anti-slip and retro-reflective characteristics. A first coating of paint is applied to the surface, solid particles are distributed onto the first coating such that the particles sink partially into the first coating, and a second coating of paint is applied over the particles and the first coating to lock the particles into the first coating with the particles projecting from the second coating. Before the second coating is set, retro-reflective beads are distributed over the second coating to sink partially into the second coating between the projecting particles. The beads are bonded into the second coating and project from the second coating. The beads are smaller than the particles and the particles project from the second coating by more than the beads to overshadow the beads.

Abstract: A method for lapping of gun barrels on fully assembied firearms is provided using cartridges fitted with lapping bullets impregnated with abrasive. The present invention provides a process for simultaneously impregnating a quantity of lapping bullets with an abrasive, in which a quantity of unlubricated bullets are placed in a tumbler with steel balls and quantity of the desired abrasive. The speed of rotation of the tumbler, and the shape of the tumbler are selected so that the bullet/abrasive/tumbling media mix folds on itself, thus providing an even impregnation of abrasive on the bullets and minimizing any deformation of the bullets. The mixture is allowed to tumble for a period of time, typically about an hour, after which a sufficient quantity of the abrasive is firmly embedded on the surface of each bullet. The abrasive impregnated bullets can then be coated with a protective and lubricating finish, such as carnauba wax, if desired.

Abstract: A body of carbonaceous or other material for use in corrosive environments such as oxidizing media or gaseous or liquid corrosive agents at elevated temperatures, in particular in molten salts such as cryolite, is coated with a protective surface coating which improves the resistance of the body to oxidation or corrosion and which may also enhance the bodies electrical conductivity and/or its electrochemical activity. The protective coating is applied in one or more layers from a colloidal slurry containing reactant or non-reactant substances, or a mixture of reactant and non-reactant substances, in particular mixtures containing silicon carbide and molybdenum silicide or silicon carbide and silicon nitride, which when the body is heated to a sufficient elevated temperature reaction sinter as a result of micropyretic reaction and/or sinter without reaction to form the protective coating.

Abstract: Process for preparing shaped bodies of thermoplastic polymers by means of extrusion, injection, or spin molding of granules having a length within the range of from 2 to 100 mm, obtained by cutting a continuous calendered filament constituted by a bundle of fibres impregnated with a thermoplastic polymer in powder form and coated with an outer sheath constituted by a thermoplastic polymer which is the same as, or different from, the polymer which constitutes said powder, and having a melting point equal to or higher than the powder polymer.

Abstract: The present invention provides an article, comprising: a fabric sheet; a curable resin coated onto the fabric sheet; and a plurality of microfiber fillers dispersed into the resin. The incorporation of microfiber fillers into the casting materials of the present invention adds substantially to the strength of the cured casting material, particularly when the fabric used therein is a non-fiberglass fabric, while not detracting from the handling properties of the uncured casting tape or bandage.The microfiber fillers useful in this invention are generally characterized as being short fibers having an aspect ratio greater than five to one. Blends of microfibers having different aspect ratios may be utilized in the casting tapes of the present invention. Preferred microfiber fillers or blends have an aspect ratio between 5:1 and 200:1, more preferably, the aspect ratio of the microfiber is between 5:1 and 50: 1, and most preferably, the aspect ratio of the microfiber is between 10:1 and 30:1.

Abstract: A filtering material employable for a variety of application fields in the form of a sanitary mask, a deodoring filter or the like comprises calcium phosphate particles, .beta.-1,3-glucan and a band-shaped raw material, and the calcium phosphate particles each serving as a filtering medium are caused to adhere to the sheet-shaped raw material with the aid of the .beta.-1,3-glucan serving as a binder. A method of producing a filtering material is practiced by way of a first step of stirring a predetermined quantity of calcium phosphate particles and a predetermined .beta.-1,3-glucan in hot water at a high speed to prepare an aqueous treatment solution, a second step of dipping a sheet-shaped raw material in the aqueous treatment solution and taking up the sheet-shaped raw material, and a third step of drying the sheet-shaped raw material after completion of the taking-up operation.

Abstract: A coated abrasive article comprising(a) a porous backing having a front side and a back side;(b) in direct contact with the porous backing, a make coat formed from a composition comprising a radiation curable adhesive applied over the front side of the backing;(c) a multiplicity of abrasive grits bonded by the make coat to the front side of the backing; and(d) a size coat overlying both the abrasive grits and the make coat. The invention also involves several methods for preparing the coated abrasive article. In all of these methods, a radiation curable make coat precursor is applied directly to the front side of the porous backing. No treatment coat is required to seal the backing prior to application of the make coat precursor.

Abstract: A bone cement composition has adjustable rheological properties, high strength, and produces a uniform radiological image. The cement comprises beads containing a polymerization initiator in controllable concentrations from 0% to 5% or more by weight. These same beads or others may also contain an opacifier. The polymerization initiator and the opacifier may be selectively distributed throughout the beads or at specific radial locations in the beads or within the beads in specific strata. They may also be selectively placed in beads of a particular advantageous size range. Furthermore, in other embodiments of the invention, other advantageous additives can be incorporated in the beads such as dyes, antibiotics, bone growth factors, and other pharmacological or therapeutic agents.

Abstract: The invention relates to a process for depositing a latex coating on an article made of elastomer,wherein a continuous layer of a hydrophilic inorganic pulverulent material is deposited at the surface of the elastomer and the said article is immersed in an aqueous latex suspension.The invention also relates to a composite article based on silicone elastomer comprising a latex coating, said composite article including a film made up of a hydrophilic inorganic pulverulent material at the interface between the silicone elastomer and the latex.

Abstract: The invention provides a composition of matter comprising silicon, silicon carbide and boron carbide as a coating for protecting carbon substrates from degradation at elevated temperatures. The invention also provides a method for forming a protective coating on carbon substrates by utilizing the aforesaid composition of matter.

Abstract: An improved method for superplastic forming diffusion bonding includes application of a protective encapsulating coating over the stop-off coating to prevent migration of yttria into regions to be diffusion bond.

Abstract: This invention relates to a method of discriminating an article which includes steps of finishing the article to make it have a smooth base surface, applying a transparent reflective film on the base surface of the article, the transparent reflective film being provided with a plurality of transparent spherical particles forming a first region and a plurality of transparent spherical particles forming a second region which have different distances from the base surface, distance between the transparent spherical particles in the first region and the base surface being just equal to focal length of the first transparent spherical particles in the first region, distance between the transparent spherical particles in the second region and the base surface being shorter than focal length of the transparent spherical particles in the second region, coating the transparent reflective film with a transparent protecting film, whereby the first region will be more bright than the second region when the light is vertic

Abstract: A cable wrap which swells upon contact with water is made by coating one side of a nonwoven fabric support with a polyvinyl alcohol binding agent and then with a superabsorber powder, drying the coated fabric between contact surfaces, printing a polyacrylate binding agent plaste onto the superabsorber surface, and then drying the coated fabric. Alternatively, the cable wrap can be made by printing a polyacrylate binding agent paste onto a nonwoven fabric support, applying a polyvinyl alcohol binding agent onto the polyacrylate binding agent paste, sprinkling superabsorber powder onto the polyvinyl alcohol binding agent, and drying the coated fabric between contact surfaces.

Abstract: The present invention relates to a novel process for forming metal matrix composite bodies. Particularly, an infiltration enhancer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere are in communication with a rigidized filler material or a rigidized preform, at least at some point during the process, which permits molten matrix metal to spontaneously infiltrate the rigidized filler material or rigidized preform. Such spontaneous infiltration occurs without the requirement for the application of any pressure or vacuum.

Abstract: A manufacturing method for an electrode in which ultra fine particles of active material formed in gas by an evaporation method are carried in a gas flow and blown onto a surface of a substrate, so that an electrode comprising a thin film of active material is formed on the surface of the substrate. A manufacturing method for an electrode-electrolyte composite in which ultra fine particles of active material formed in gas by the evaporation method are carried in a gas flow and blown onto a surface of a film comprising a solid electrolyte, so that an electrode comprising a thin film of active material is formed on the surface of the film. The above manufacturing method for an electrode can provide an anode or a cathode comprising an ultra thin film having an uniform thickness of under 10 microns inclusive, for example.

Abstract: An apparatus and method for forming absorbent articles having superabsorbent particles. Air-entrained absorbent particles are directed through a diverter valve which alternately directs the particles to first and second dispensing nozzles. The nozzles are positioned for dispensing the particles into a moving web of fibrous material, such as wood pulp fluff. Selective operation of the valve in synchronization with the conveying arrangement for the wood pulp fibrous material permits deposition of the absorbent particles in desired patterns within selected portions of the fibrous material.

Abstract: The oxidation resistance of MCrAlY-type overlay coatings is improved by incorporating small discrete oxide particles into the coating. The particles are preferably yttrium oxide, and the coating is applied by simultaneously plasma spraying MCrAlY-type powder particles and oxide particles onto a substrate in a nonoxidizing atmosphere. Improvements in resistance to rumpling has also been observed in coatings applied according to this invention.

Abstract: A metastable crystal layer is deposited by chemical plasma deposition on diamonds at subatmospheric pressure (10.sup.-3 Torr) at 850.degree.-1050.degree. C. The metastable layer enables the diamond to be metallurgically bonded to a suitable substrate.

Abstract: Method for consolidating diamond material, substantially free of voids, has an average crystallite size greater than about 15 microns, a maximum intensity of the diamond Raman peak in counts/sec divided by the intensity of photoluminescence at 1270 cm.sup.-1 greater than about 3, a Raman sp.sup.3 full width half maximum less than about 6 cm.sup.-1 and a diamond-to-graphite Raman ratio greater than about 25. The diamond material may also comprise carbon atoms with a C.sup.13 content less than 0.05 atomic %.

Abstract: A fiber reinforced composite composed of a scrim/mat. The scrim/mat includes a layer of fiber scrim to which is bonded a layer of fiber mat. This product can be formed into a tubular member such as a fuse tube. The tube is made by pultruding the scrim/mat.

Abstract: The present invention relates to a coated fabric of a polyester fiber exhibiting no staining caused by migration of a dispersed dye and a method for preparation thereof. The present invention catches a dye migrating in a resin by using fine inorganic particles having dye-absorption capabilities to confine dye molecules in fine pores thereof, and to prevent the surface of another fabric from staining due to dye-migration.

Abstract: This method comprises the following steps, which are compatible with thin-film technology: forming a bottom electrode (2) on an insulating substrate (1), depositing a humidity-sensitive polymer layer (5) of uniform thickness on the bottom electrode (2) leaving contact areas (3a, 3b) uncovered, activating surface bonds of the polymer layer (5), applying a colloidal dispersion of SiO.sub.2 or Al.sub.2 O.sub.3 particles (6) of uniform grain size as a thin layer to the polymer layer (5) and subsequently drying it, depositing a cover electrode (7) on the particles (6) still evenly distributed on the polymer layer (5) after the drying of the dispersion, and removing the particles (6) together with the portions of the cover electrode (7) overlying them.

Abstract: Metal cookware coated with a multilayer system including a primer with more Al.sub.2 O.sub.3 and a blend of PTFE and PFA or FEP, a midcoat with less Al.sub.2 O.sub.3, and a topcoat with PTFE, and processes for preparing such coating systems.

Abstract: A method for coating an annular inclined surface of a part with a powder prior to sintering, in which a lower annular axial surface is provided below and extending the inclined surface of the part. Along the axis of the part, a central tool is arranged having a lower axial surface slidable relative to the lower annular axial surface and an annular inclined surface above the lower axial surface and facing the annular inclined surface of the part. The part and the tool define an annular gap which is closed at the bottom portion and which has an open annular upper end above the annular inclined surface and the inclined surface of the part. The annular gap is filled with a powder through the open upper end which is then closed, and the part with the lower annular axial surface and the central tool are then relatively displaced, causing the inclined surface of the part and the annular inclined surface to become closer and compress the powder against the annular inclined surface of the part.

Abstract: A process for making 2D and 3D carbon-carbon composites having a combined high crystallinity, high strength, high modulus and high thermal and electrical conductivity. High-modulus/high-strength mesophase derived carbon fibers are woven into a suitable cloth. Layers of this easily graphitizible woven cloth are infiltrated with carbon material to form green composites. The carbonized composite is then impregnated several times with pitch by covering the composite with hot pitch under pressure. The composites are given a heat treatment between each impregnant step to crack up the infiltrated carbon and allow additional pitch to enter the microstructure during the next impregnation cycle. The impregnated composites are then given a final heat treatment in the range 2500.degree. to 3100.degree. C. to fully graphitize the fibers and the matrix carbon. The composites are then infiltrated with pyrolytic carbon by chemical vapor deposition in the range 1000.degree. C. to 1300.degree. C. at a reduced. pressure.

Abstract: A structural surface such as a wall or pavement related to a building has a patterned layer of stones, which externally retains the texture of the stones. The surface is given a coating of adhesive. A mask of the desired pattern is placed on the adhesive coating. Stones of one characteristics, e.g. color or size, are applied over the mask and adhere to the adhesive layer where the adhesive remains exposed through openings in the mask pattern. Non-adhering stones of the first characteristic are removed; the mask is removed exposing a pattern on the structural surface of said adhesive coating. Stones of a second characteristic are applied to the surface and adhere to the exposed adhesive coating. Excess, non-adhering stones are removed leaving a patterned stony surface, which is then covered with a thin layer of clear plastic material.

Abstract: A carrier for a biologically active component for immunoassay or enzymatic reaction, which comprises:a) a thermoplastic resin bead having an average diameter of from 0.05 to 20 mm,b) from 1 to 25% by weight, based on the bead, of a magnetically responsive powder bonded to the bead, andc) a polymer coated thereon in a thickness of from 2 to 30 .mu.m, said polymer having a number average molecular weight of from 200 to 10,000 and having functional groups capable of binding, or being activated to bind, the biologically active component.

Abstract: A method of applying a bound particulate rubber outdoor surface comprises the initial step of providing a prepared base onto which the surface is to be applied. A primer layer is applied to the base, and is composed of a mixture including water such that the layer is wet when applied and dries as the water in the mixture evaporates. A fluidized stream of particulate rubber is directed onto the primer layer before the primer layer dries so that a layer of particulate rubber is formed on top of the primer layer and settles at least partially in the primer layer. Thereafter, the primer layer is allowed to dry before application of a binder layer over the particulate rubber. The binder layer also is composed of a mixture including water. A fluidized stream of particulate rubber is then directed onto the wet binder layer so that a layer of particulate rubber is formed ont op of and settles in the binder layer.

Abstract: The invention relates to a process for producing a fuel absorbent, which comprises the steps of: dissolving an organic polymer having a function of trapping fuel in a solvent to produce a polymer solution; adding a crosslinking agent to said polymer solution to allow said organic polymer to react in the presence of said crosslinking agent; and collecting, after the completion of the crosslinking reaction, the resultant fine polymer gel particles. The invention also relates to a porous fuel absorbent produced by the above process comprised of fine cross-linked organic polymer formed into particles. The above fuel absorbent along with the coatings and a carrier may be used to control fuel evaporation loss in automobile canisters or boiler fuel tanks.

Abstract: A metastable crystal layer is deposited by chemical plasma deposition on diamonds at subatmospheric pressure (10.sup.-3 Torr) at 850.degree.-1050.degree. C. The metastable layer enables the diamond to be metallurgically bonded to a suitable substrate.

Abstract: A method and composition for chip sealing a roadway utilizing a coating containing a parent binding material. Stone chips are then spread onto the parent binding material to form a composite having an upper surface. A liquid composition is then applied over the upper surface of the composite. The liquid composition includes an emulsion of liquid asphalt, a lignosulfonic acid salt, and water.