Abstract: A stainless steel wire for springs is proposed which has a colored coating of resinous paint thereon. The wire is coated with a paint, dried and baked to form a coating and is then drawn to a desired diameter. The coating has a good adhesiveness and good heat resistance. The stainless steel wire may be nickel-plated before painting.

Abstract: A process for producing silver-coated potassium titanate fibers comprises admixing the potassium titanate fibers with a silver ion solution containing a reducing agent. The resulting silver-coated potassium titanate fibers can, if desired, be provided with one or more additional metal coatings superimposed on the silver coat wherein the additional metal is other than silver.

Abstract: A metal-coated substrate, e.g., of glass, ceramic, or a hydroxy-functionalized material, wherein the improvement comprises a polysilicate, titania, or alumina interlayer between the substrate and the metal coating. The interlayer may have a porous microstructure, e.g., a polysilicate interlayer with an average pore size on the order of 50-150 Angstroms.Such articles, e.g., in the form of metal-coated fibers, may suitably be employed as reinforcing media in material composites having utility in structural applications, such as EMI shielding elements.Also disclosed is a corresponding method for forming a metal coating on a substrate by the provision of an interlayer of the above type. The interlayer may suitably be formed by applying to the substrate a sol gel dispersion of the polysilicate, titania, or alumina material, followed by drying of the applied dispersion.

Abstract: An electrically-conductive sheet-form laminate is disclosed and a power cable made thereof. The laminate has a resistivity of no more than about 10.sup.6 ohm-centimeters across the thickness dimension thereof. The sheet-form laminate comprises an electrically-conductive non-metallic layer, an electrically-conductive metal foil layer in juxtaposition thereto, and a discontinuous but electrically non-conductive bonding layer therebetween. The electrically-conductive non-metallic layer is constituted by a particulate conductive material-filled polymeric resin; and the electrically non-conductive bonding layer comprises a cured polymeric substance, preferably a polyurethane-based adhesive.

Abstract: A combustible gas sensor element prepared by the process of applying, to a sheathed wire coil, separate coats of catalytic wash each heated in a furnace, separate and alternating coats of porous ceramic and platinum each heated by passing an electric current through the coiled wire filament, and separate coats of porous ceramic top coating, each heated by passing an electric current through the filament.

Abstract: A conductive cable made up of a plurality of polyaramid elements referred to as tows, which are woven, twisted, or braided together, in which each of said tows comprises a large number of individual fine filaments (usually about 1,000 or so) with each of the individual filaments being coated with an adherent metal coating such as copper, nickel, silver, zinc, cadmium, platinum, iron, cobalt, chromium, tin, lead, rhodium, ruthenium, and indium in single or multiple layers so as to provide strength and good electrical conductivity. Woven polyaramid fabric is also disclosed with the individual filaments in each element or tow of the fabric having been treated in the same manner.Methods of making such a cable or woven fabric are also disclosed.

Abstract: A process and apparatus for preparing a glass fiber circumferentially coated with an amorphous metallic alloy, wherein the glass fiber is drawn to substantially its final diameter and then coated with amorphous metallic alloy. The coating is accomplished by passing the drawn glass fiber vertically through an opening formed between two circumferentially abutting, counter-rotating, circumferentially grooved rolls having a pool of a glass-forming alloy continuously supplied from a crucible and supported in the nip of the rolls adjacent the opening. The drawn glass fiber first passes through the pool of molten alloy and then immediately into the opening defined between the two rolls, whereby the metallic alloy coated onto the drawn glass fiber is rapidly cooled to form an amorphous coating.

Abstract: A coaxial cable is provided having a ribbon inner conductor surrounded by a dielectric and a circumferential conductor. The coaxial cable may be microminiature comprising a very thin ribbon strip conductor from between 5 to 15 .mu.m thick and from 150 to 200 .mu.m wide, having a surrounding foamed dielectric or parylene applied thereon by a vapor plasma process and an outer conductor of an adhering high conductivity metal vacuum deposited on the dielectric. Alternately the foam dielectric embodiment may have a contiguous parylene coating applied adjacent the inner conductor or the outer conductor or both. Also, the cable may be fabricated by forming a thin ribbon of strip conductive material into an inner conductor, applying thereabout a dielectric by spraying on a solution of polystyrene and polyethylene and then vacuum depositing and adhering high conductivity metal about the dielectric.

Abstract: This invention relates to an antenna material and more particularly to an antenna material comprising, in its preferred embodiment, a woven mesh of amorphous silica fibers, a conductive metal coating on at least the outer surfaces of the mesh and a lubricant covering and adhering to non-metallized surfaces of the silica fibers.

Abstract: A method and apparatus provides an essentially neutrally buoyant undersea ectronic data communications link. A bundle of continuous synthetic fibers each having a diameter of about ten microns has individualized metallized layers coated to a thickness of about one to three microns and the whole lot is covered by dielectric insulation. The synthetic fibers, aromatic polyamide fibers or graphite fibers, are relatively light-weight yet have high tensile strengths to assure a sufficient load bearing capability for the undersea use and the number of thin metallized coatings provide the electrical data transmission capability without unduly weighting down the cable. The dielectric insulation layer is disposed coaxially outwardly of the coated fibers and optionally is provided with an outer sheath of conductive material for a return path. However in some applications a seawater return path is better.

Abstract: A multiwire twisted conductor comprising wires coated with materials serving to permit soldering and protection of the wires against corrosion, with at least one wire in a conductor cross section coated with a fluxing material, and with all other wires coated with a fusible metal or alloy. A device for coating of wires in the multiwire twisted conductor, comprising a bath of melt whereto an immersion device dips the wire fed from a feed section of a take-up and feed mechanism to a take-up section through a pass, and a fluxing device, with said wire immersion device equipped with a periodic effect drive serving for periodic action on the wire.

Abstract: A filament, and optionally a cord of cabled filaments, as a composite of (A) a filament and/or cord of steel, (B) a brass and/or zinc coating thereon and (C) a undercoat comprised of selected compounds. The invention further relates to a composite of such filament and/or cord as a reinforcement with rubber.

Abstract: Fibers are coated with a metal layer by applying onto the fiber a relatively high viscosity slurry comprising an alloy in the form of liquid and solid phases. This allows application of metal coatings on layers that do not "wet" with the liquid metal. For example, an optical fiber having a soft polymer layer to reduce microbending losses is coated with a metal to prevent moisture entry. An alloy of Bi-Sn or In-Sn, among others, allows coating at a relatively low temperature to prevent polymer degradation. Other fibers for various uses can also be advantageously coated with this technique.

Abstract: At least a substantial amount of the corrosion products on the surface(s) of brass plated steel cord are removed by treatment in an aqueous solution containing a minor amount of an NH.sub.4, Na, K, Li, Ca, Mg, Sr, Ba and Zn salt of a saturated aliphatic carboxylic acid of from 1 to 5 carbon atoms.

Abstract: Articles of a thermoplastic having an improved level of electromagnetic shielding are molded from plastic pellets that have a core of metalized glass fibers that are arranged to partially disperse through the molded article as individual fibers and partially to remain in clumps of generally aligned closely contacting fibers. The clumps have approximately the length of an individual fiber but they are substantially wider than an individual fiber. Improved conductivity is attributed to increased electrical bridging between fibers that is provided by the width of the clumps of fibers.

Abstract: A process for preparing a high voltage-ignition cable having a low electrostatic capacity comprising a resistive-conductor core, an insulator layer and a jacket layer, which comprises preparing a resistive-conductor core comprising a fiber bundle and a semiconductive material provided on at least on the circumferential surface thereof, extrusion coating a polyolefin resin on the circumferential surface of the resistive-conductor core to form an insulator layer, irradiating the insulator layer with electron beam to effect cross-linking of the resin, extrusion coating a polyolefin resin, without providing a reinforcing layer or after providing a reinforcing layer, on the cross-linked insulator to form a jacket and irradiating the jacket with electron beam.

Abstract: A filament of synthetic polymers which, in its cross section over the entire length of the thread, comprises at least three layers, of which at least two layers are electrically conductive and at least one layer located between the conductive layers consists of an electrically insulating synthetic polymer.

Abstract: Brass coated steel tire cord is treated with vaporized benzotriazole and/or other treatment agents to promote corrosion resistance and cord to rubber adhesion retention.

Abstract: A method for adhering rubber to reinforcing materials which comprises embedding a textile fiber or metal reinforcing material in a vulcanizable rubber composition comprising rubber, a vulcanizing agent and an imidazolidinone and vulcanizing said composition.

Abstract: Process for the direct joining of rubber to metal surfaces by vulcanization using a rubber mixture containing the additives common for sulfur vulcanization wherein either the rubber mixture contains additionally tellurium, tellurium alloys and/or tellurium compounds as bonding aid, or that tellurium, tellurium alloy and/or tellurium compound is applied on the metal surface before vulcanizing.

Abstract: A bleaching packet comprising a porous pouch containing a dry granular hypochlorite generating agent for the release of bleach in the aqueous medium of an automatic washing machine several minutes after the beginning of the wash cycle.

Abstract: Articles of a thermoplastic having an improved level of electromagnetic shielding are molded from plastic pellets that have a core of metalized glass fibers that are arranged to partially disperse through the molded article as individual fibers and partially to remain in clumps of generally aligned closely contacting fibers. The clumps have approximately the length of an individual fiber but they are substantially wider than an individual fiber. Improved conductivity is attributed to increased electrical bridging between fibers that is provided by the width of the clumps of fibers.

Abstract: Electrical conductors for use in microelectronic circuitry are prepared from a flexible, polymeric fiber selected from the group of flexible, polymeric fibers consisting of silk, polyacrylonitrile, regenerated cellulose, polyester, and polyamide. The selected fiber is made conductive by coating by a method wherein the fiber is immersed for a predetermined time period of from about 30 minutes to about 60 minutes in a solution prepared from equal portions of a silver nitrate-aqueous ammonia solution and a silver nitrate-potassium-sodium tartrate solution. These solutions coat the selected polymeric fiber with metallic silver. The excess solution is washed off and the coated fiber is air dried or dried in a low temperature oven at about 50.degree. C. The process is repeated if a heavier coating of silver on the fibers is desired for better conductivity. For use, the metallic silver coated fiber is cut to required length and tested for resistivity which should be near one ohm.

Abstract: Copper based substrates for use at high temperatures in oxidizing atmospheres are made up of a copper core overlaid with a protective nickel oxide barrier layer formed in situ and an external protective layer of nickel. The process for forming the protective nickel oxide barrier layer comprises the steps of subjecting the copper core to oxidation to form a cuprous oxide surface layer over the copper core, reducing the surface of the cuprous oxide layer to regenerate copper to regain conductivity, plating a surface layer of nickel over the copper layer, and annealing the coated copper core to scavenge at least some of the oxygen from the cuprous oxide layer and react it at the interface with the plated nickel layer to form the protective nickel oxide barrier layer.

Abstract: Brass coated steel tire cord is treated with vaporized benzotriazole and/or other treatment agents to promote corrosion resistance and cord to rubber adhesion retention.

Abstract: Brass-coated steel cord is provided with improved adhesive characteristics for use in tire making, by coating it with certain combinations of sulfur-containing accelerators and phosphate corrosion inhibitors.

Abstract: A formulation which may be applied to a substrate to produce a flexible, high temperature, thermally stable and color stable film thereon. The formulation comprises a poly(1,3-imidazolidine-2,4,5-trione) polymer, a free radical scavenger in an amount sufficient to inhibit cleavage and cross-linking of the polymer by action of oxygen thereon, and a solvent for the polymer. Also disclosed are a method for applying a flexible, high temperature, thermally stable and color stable color coating to a polyimide substrate; the substrate so coated; and an insulated conductor assembly having a polyimide insulative cover and an imidazolidine trione based-top-coating over the cover.

Abstract: A carbon fiber reinforced metal matrix composite is produced by depositing a metal boride coating on the surface of the fibers and subsequently immersing the fibers in a molten bath of the metal matrix material. The boride coating is formed by passing carbon fiber through a gaseous mixture of chlorides of the metal and boron in the presence of zinc vapor at elevated temperatures. The subsequent reaction deposits out a submicron lamina of metal boride on the carbon fibers serving to enhance wetting of the fibers by the molten metal, with the lamina preventing chemical reaction between the fibers and metal matrix materials and also providing a strong mechanical bond therebetween.

Abstract: An assembly, useful in producing a carbon fiber-reinforced metal, of a plurality of carbon fibers each coated with a matrix metal layer, the fibers having bonded points at the metal layers to form a two-dimensional network structure or both a two-dimensional network structure and a three-dimensional network structure, produced advantageously by an ion plating process or a vacuum deposition process.

Abstract: An improvement in the known method of tagging individual units of production of a substance with microparticles for retrospective identification is disclosed. The improvement comprises the use of microparticles which are encoded with an orderly sequence of visually distinguishable colored segments. Decoding of the microparticles can be accomplished with a microscope or other magnifying device.

Abstract: A foam coated fiber core, the outer pores thereof being filled with substance of a solid, liquid of pressurized gaseous character in which the foamy coating acts as a carrier therefor, and in which the filler enhances the utility of the structure for many uses, such as uses of the fiber per se or as a carrier or dispenser of the added substance being carried therein.

Abstract: Rubber is adhered to metal such as the metal in the belt of a vehicle tire or conveyor belt, by first coating the metal with rubber containing a small amount of the amine of cobaltous chloride, CoCl.sub.2.2NH.sub.3. The metal may first be zinc coated.