Abstract: Disclosed is a thermionic emission material coating method for a filament used in a fluorescent display tube. The tungsten wire emerges in a carbonate oxide thermionic emission material in dryable form while rotating it so that the carbonate oxide becomes coated on the circumference of the wire and then dries the tungsten wire while rotating it to have a uniform thickness of coating over its entire circumference, thereby preventing flaking off the thermionic emission material and filament breakage which is caused by the uneven coating of thermionic emission material.

Abstract: An aqueous composition for treating fibers for use in the resin transfer/injection molding of high density continuous fiber preforms which comprises about 0.005 to 0.05 php wetting agent, about 0.05 to 0.25 php binder, about 0.10 to 1.00 php polymer, about 0.005 to 0.05 php plasticizer and about 0.05 to 0.25 php water soluble oil, balance water, wherein the term "php" is intended to mean parts per 100 parts water (w/w). This composition, when applied to fibers, allows high fiber tension to be applied during preform fabrication without causing damage due to mechanical abrasion of the fibers. The composition also promotes resin to fiber adhesion and speeds the flow of resin through the dense preform during resin injection/transfer molding.

Abstract: A coiled metal sheet is placed in a container, which may be thereafter evacuated slowly with the strip outgassing, and then the highly evacuated container is sealed with the coiled strip therein. The evacuated container may be stored until ready to be mated with a high vacuum process chamber. The container is brought to the vacuum processing chamber and is connected thereto; and the coiled strip is unwound from the container and passed through the vacuum chamber, where it is treated while under a high vacuum. The treated strip is then preferably wound in a highly evacuated take-up container.

Abstract: Zinc or zinc alloy plated steel sheet ready for deep drawing coated with 1-5 gm/m.sup.2 of a dry, tack free continuous thermoplastic acrylic coating. The coating is formed by inductively heating the sheet to a temperature of about 149.degree.-246.degree. C. for no more than 10 seconds after being roll coated with a continuous liquid film of an aqueous solution including an acrylic polymer. The acrylic coating forms a protective film that is impervious to moisture, oil, and dirt, is able to be welded and adhesively bonded and possesses sufficient toughness and lubricity to allow deformation of the sheet without additional external lubricant. A deep drawn article formed from the sheet has enhanced painting characteristics after the acrylic coating is removed and the article is coated with a phosphate coating.

Abstract: The invention relates to a process for coating metal strip in the coil coating process. The coating materials employed consist of:a) 3 to 50% by weight, preferably 20 to 40% by weight, of polyester imide resins, the 20 to 60% by weight solutions of which possess viscosities from 90 to 4,000 mPas at 23.degree. C. and the hydroxyl values of which are in the region from 50 to 300,b) 3 to 40% by weight, preferably 10 to 30% by weight, of pigments and/or fillers,c) up to 3% by weight of suitable auxiliary substances and additives andd) 10 to 90% by weight, preferably 20 to 60% by weight, of one or more organic solvents,the sum of a), b), c) and d) being 100% by weight. The invention further relates to the use of the metal strip produced by the process according to the invention for production of exhaust components.

Abstract: A novel sulfone compound represented by the general formula (I) or (II) is disclosed. A sizing liquid containing the sulfone compound is applied to reinforcing fibers for improving compatibility thereof to a matrix resin into which the fibers are to be incorporated to form a fiber-reinforced composite material.

Abstract: A process for producing a liner material characterized by dipping a core in the form of a monofilament or multifilament into a vinyl chloride resin sol composition having a thermochromic particulate material incorporated therein, the thermochromic particulate material being prepared by enclosing with the high polymer compound an electron-donating chromogenic substance, an electron-accepting substance for the chromogenic substance and a solvent having a boiling point of at least 150.degree. C. and selected from the group consisting of alcohols, amides, esters and azomethines and further covering the resulting product with a different high polymer compound; withdrawing the core from the sol composition; and heating the core to gel the sol composition and cover the core with the gelled composition.

Abstract: A process for applying an electrically insulative layer on a metal surface which comprising suspending an electrically insulative powder in a highly volatile solvent by ultrasonic vibration to give a suspension, applying said suspension on the surface of said metal surface, and then evaporating said solvent, leaving an electrically insulative layer consisting of said insulative powder.

Abstract: A method of fabricating irregular shapes wrapped with metal matrix composite monotape utilizing a cylindrical deposition drum wrapped with a spiraling array of evenly spaced strands of high strength fibers and overlaid with a metal matrix, which is cut into a narrow ribbon which is transferred to a spool and then wound on the irregular shape in a helical manner so that the opposite side margins are adjacent each other in adjacent turns.

Abstract: A method and resultant device is described for fabricating iridium silicide Schottky IR detectors in which a thin intermediate film of platinum is formed between the conventional iridium outer layer over a p-type silicon substrate with or without an n-type guard ring. After thermal treatment, an iridium platinum silicide region is formed in the silicon substrate. The unreated iridium/platinum outside the device region is removed using a dry-etching process.

Abstract: An apparatus for applying a powder of anti-sticking agent on a coil of oriented electrical steel strip formed on a coiler comprises a movable assembly moving closer to and away from the coiler, a stationary hood attached to the movable assembly and having slit-like suction ports provided along the walls thereof, one end of the suction ports opening toward the coiler, a duct-collecting duct connected to the slit-like suction ports of the stationary hood, movable hoods provided on the stationary hood to vertically open at the top and bottom of the open end of the stationary hood, and a group of electrostatic powder spray guns directed toward the coiler in the stationary hood in which they are disposed. The movable assembly recedes and the movable hoods open as the diameter of the coil increases so that a given space is always maintained between the surface of the coiled strip and the movable hoods.

Abstract: Process of manufacturing thin electrodes, supported on an electronically conductive sheet, the electrodes being made from an element selected from lithium, lithium alloy, or doped lithium, whose melting point does not differ from the melting point of lithium by .+-.50.degree. C. and whose thickness is constant, from a roller of the sheet and a source of the element. According to the invention, there is provided a bath of the element in molten state, the sheet is continuously unrolled, a constant quantity of the molten element is continuously applied on one of the two faces of the sheet, so as to produce a film on the sheet, whose thickness is constant and between about 0.1 and about 40.mu. and whose surface is homogeneous and uniform. The process is carried out in such a manner that the molten element is prevented from solidifying while in contact with the sheet, and the solidification of the element on the sheet takes place after formation of the film on the sheet.

Abstract: A process to form a fiber-reinforced prepreg and shaped objects having a continuous thermoplastic matrix of poly(arylene sulfide ketone) resins is provided. The prepreg is useful to form composites with high temperature resistance. The prepreg is prepared by pultrusion of resin-impregnated fiber reinforcement through a shaped die. The reinforcement can be impregnated from a liquid slurry or resin particles and a wetting agent.

Abstract: Disclosed is a method of insulating ferromagnetic amorphous metal strip by coating the strip with a composition of about 3 to about 32% of a metal alkoxide having a general formula of M(OR).sub.n, where M is an alkoxide forming metal, R is alkyl, and n is the valence of the M, about 56 to about 96% of a solvent for the metal alkoxide, about 1 to about 12% water, and about 0.001 to about 0.01% of an acid. The coated strip is heated at a temperature above the temperature at which the metal alkoxide hydrolizes and polymerizes and the water and solvent evaporate, and below the temperature at which the amorphous metal crystallizes. Also disclosed is ferromagnetic amorphous metal strip insulated with a coating of glass that is about 0.001 to about 0.02 mils thick.

Abstract: Heat-curable hot-melt enamels, a process for their preparation, and the production of highly heat-resistant wire windings. These heat-curable hot-melt enamels are solutions of a nylon in organic solvents, which contain, as the nylon, a nylon possessing functional amino groups and additionally contain a blocked di- or polyisocyanate. They are useful for the production of highly heat-resistant wire windings.

Abstract: A method of insulating electrical conductors wherein a tape of porous mica paper and of glass felt or cloth or plastic material film is wound round the conductors, wherein the tape is impregnated with a varnish comprising a polymerizable liquid resin, and wherein the impregnated tape is polymerized by heat treatment, the method including the improvement whereby an adhesive powder is initially added to the tape to provide adhesion between the porous mica paper and the glass felt or cloth or the plastic material film, said adhesive powder comprising a polymer having chains of oxazolidone groups containing groups with epoxy terminations, and whereby the polymerizable liquid resin of the varnish essentially contains isocyanate groups which are transformed into isocyanurate groups during polymerization.

Abstract: A method and applicator for applying a liquid material aftertreatment to a strand. Particularly, the strand is glass fibers or filaments and the aftertreatment is an antistat. The strand lightly touches the applicator at an orifice sufficiently small so that the strand retains essentially all of the liquid antistat. In a preferred embodiment, the orifice angles toward the direction of strand movement.

Abstract: Coiled valve metal mesh of great void fraction and lengthy dimension and having a continuum of interconnected metal strands is coated with an electrocatalytic coating from liquid composition. The coating operation proceeds by contacting the mesh with liquid coating composition while the mesh is maintained in coiled form. This highly efficient coating method is continued through a curing operation while further maintaining the coated mesh in coiled form. Pretreatment preceding coating operation, e.g., degreasing and etching, may also be accomplished without uncoiling of the mesh. The coated mesh can later be uncoiled and current distributors welded to it for use as an electrode, e.g., in cathodic protection.

Abstract: A method for making an electrical inductive device for use in hermetic atmospheres which incorporate refrigerants such as halogenated methane compositions, for example refrigerant R-22, monochlorodifluoromethane. The device may be a wound coil device formed of magnet wire, the enamel coating of which has resistance to blistering when exposed to refrigerants under saturated conditions at temperatures up to about 200.degree. or 210.degree. C. and above. The enamel coating composition or wire enamel is formed as the reaction product of 1,2,3,4-butanetetracarboxylic dianhydride, optionally with an aromatic dianhydride, and a diamine such as p,p'-methylenedianiline or p,p'-oxydianiline, in an organic solvent such as N-methyl-2-pyrrolidone.

Abstract: A method for painting coil coated substrates which comprised (a) coating said substrate with a primer composition comprising organoxysilane, tetralkyltitanate, and a volatile organic solvent, (b) drying said primer coat, and (c) coating said dried primer coat with a protective coating.

Abstract: There is disclosed a method of and apparatus for producing a wear-resistant coating on a thin metallic strip, for example for the manufacture of coating scrapers for paper webs. After preparatory surface treatment the strip is passed longitudinally through a coating zone in which coating material in a molten state is sprayed onto the strip by a coating unit as the strip passes. The wear-resistant coating is built up in steps by the application of several coating layers one on top of the other, each being applied during a respective pass of the strip through the coating zone. The strip speed and the capacity of the coating unit are adjusted in relation to each other so that the heat supplied to the carrier material by each coating layer applied will be so slight in relation to the thermal capacity of the carrier material that the temperature increase in the carrier material does not cause any change in the physical properties of the carrier material.

Abstract: A method and apparatus are disclosed for the color coding of optical fibers (1). The optical fibers (1) are drawn through color chambers (6) in which they are continuously colored. Thereafter they are provided with distinctly colored ring-shaped markings by means of swinging color jets. After passage through a drying path (7), the optical fibers (1) are wound onto take-up reels (13).

Abstract: Thermally curable wet-impregnated rovings are disclosed in which the fibers of the roving are impregnated with a liquid polyepoxide having dispersed therein a latent heat-activatable epoxy curing catalyst, such as dicyandiamide, the polyepoxide dispersion having a room temperature viscosity of from 2000 to 5000 centipoises and a tack of less than about 6 on a Thwing-Albert inkometer. The rovings are produced without organic solvent by passing a dry multifillament roving through an elevated temperature bath of the polyepoxide dispersion, this elevated temperature being insufficient to activate the curing catalyst and functioning to lower the viscosity to enable uniform impregnation. The wet rovings are stored in a supply package.

Abstract: Warp sizing compositions are used to treat textile yarn to withstand the abrasive forces encountered by the warp yarn during weaving. A warp sizing composition having poly(vinyl alcohol); and a second film forming polymer, which is water soluble, dispersible or emulsifiable and having a Tg of less than 70.degree. C., and an average particle size of less than 5 microns, and being dispersible with poly(vinyl alcohol); and water results in treated yarn having good flexibility, and abrasion resistance strength. The more flexible treated warp yarn encounters less damage during the slashing operation to result in improved weaving performance.

Abstract: An alloyed copper wire rod is formed by continuous rod-casting, wherein a core rod is driven through a crucible containing molten metal. High purity copper melt is continuously charged into the crucible; to which an alloying material is simultaneously added in a quantity which corresponds to the given casting speed of the core rod. The required alloy thus obtained is crystallized on the surface of the core-rod as it passes through the crucible and the rod produced is treated in the usual manner i.e., cooling, rolling and coiling.

Abstract: Arc metal spraying is used to spray liquid metal onto an array of high strength fibers that have been previously wound onto a large drum contained inside a controlled atmosphere chamber. This chamber is first evacuated to remove gaseous contaminants and then backfilled with a neutral gas up to atmospheric pressure. This process is used to produce a large size metal matrix composite monotape.

Abstract: Method and apparatus which allows the component leads of pre-taped electronic components to be solder tinned to preserve the solderability and shelf life of such component leads. Pre-taped electronic components and the like are prepackaged in a reel and positioned in the apparatus such that the reel is free to rotate. Both leads of each component are secured to corresponding adjacent component leads by tape. The electronic components are moved through a plurality of processing stages such that one lead of each component is solder tinned, one of the processing stages removing the tape from the leads to enable the soldering thereof. After soldering of the leads, tape is applied thereto. The process is then repeated for the other leads of each component.

Abstract: The use of organic materials containing carbonyl groups (which are not part of carboxyl group), phenoxy groups, ester groups, or alcohol groups over vapor deposited metal layers improves their mar resistance. These organic materials can improve the properties of the metal layer when used in photoresist imaging films.

Abstract: A method and apparatus for vacuum evaporating magnetic material onto a base. Cylindrical cans are disposed parallel to one another and rotated either in the same or opposite directions. A tape-shaped base is wound around the cans passing from an upper vacuum chamber to a lower vacuum chamber. A vacuum evaporation source is positioned in the lower chamber and directed to the tape-shaped base in a predetermined area on both sides of a gap between the cans or a line contact area between the cans.

Abstract: A novel method for manufacturing magnet wire in a continuous process by which coatings of a flowable resin material may be applied concentrically to a moving elongated filament in thicknesses of about 16 mils or less. The filament can be a bare copper or aluminum conductor having round or rectangular configuration or an insulated conductor upon which a top or an intermediate coat of material is desirably applied. Coatings of one-half and one mil also can be applied by the method of the invention. By the method of the invention, magnet wire can be manufactured by continuously drawing the wire to size, annealing the wire, if necessary, insulating the wire with one or more coats of flowable resin material, curing the resin material, and spooling the wire for shipment, without interruption at speeds limited only by the filament pay-off and take-up devices used. The invention utilizes the flowable resin material to center the filament in a die, the size of the die controls the thickness of the coat to be applied.

Abstract: This invention is a method of making an elongate strip of bearing material in which a strong backing has a lining of polyphenylene sulphide applied to it. The lining is heated to be melted and bonded to the backing and partly cured, and it is then rapidly reduced in temperature and that gives it sufficient ductility to be coiled for further heat treatment or for storage without cracking the lining.

Abstract: Glass fiber sizing compositions and methods of making same and glass fibers containing dried residue of the sizing composition are provided that yield improved efficiencies, reduced migration, reduction in drying conditions, reduced cleaning time and improved housekeeping. The sizing composition, method and glass fiber strand involves the use of a high solids sizing composition having a water solubilized, condensation, cross-linkable, unsaturated polyester resin having free carboxyl groups either pendant or terminal or pendant and terminal and an amino-containing silane and an amount of water to yield a sizing composition having an amount of total solids in the range of about 18 to about 40 weight percent. In addition, other additives can be included in the sizing composition such as additional polyester resins, additional coupling agents, thermoplastic polymers, anti-static agents, film-former modifiers, wetting agents, stabilizers and lubricants.

Abstract: A method for repairing faults or defects in the insulation of insulated wire is disclosed together with an apparatus for operation of the method. The method comprises passing insulated wire to be tested for insulation faults at high speed through a fault detector. This fault detector senses the presence of a fault or defect in the wire insulation. Upon sensing a fault, the speed of the wire passing through the apparatus is considerably slowed and the area having the fault is passed through a second fault detector which locate the essentially exact spot of the fault. Thereafter, the wire is automatically moved at the slowed speed through various repair stations where a plastisol coating is applied to the fault, spread evenly over the fault area, cured and then cooled. The cured plastisol repairs the fault and the wire can then proceed at high speed through the apparatus until another fault is detected.

Abstract: A sizing composition and process are provided for producing wound packages and particularly precision wound packages of glass fiber strand and/or roving. The sizing composition has a total solids content in the range of about 9 to about 30 weight percent and comprises a phenolic epoxy resin, the reaction product of a partial ester of a polycarboxylic acid containing one or more unesterified carboxyl groups with a compound containing more than one epoxy group; and organo silane or silanes; a non-ionic surface active agent; a protective colloid; and a cationic lubricant.

Abstract: A method of tensioning metallic strips on a slitting line is combined with the steps of uncoiling a metallic web having a non-uniform cross sectional thickness from an uncoiler, slitting the web into a plurality of strips having varying thicknesses, and recoiling the strips into individual strip coils on a recoiler, the tensioning method being the additional step of depositing a strippable polymeric compound onto thinner strips so that the effective cross sectional thicknesses of the thinner strips is increased to that of the thicker strips so that the strip coils formed from the strips are of similar diameter and recoil the strips at the same rate, thereby preventing the formation of slack strips. The apparatus includes a hot melt unit for generating strippable plastic in liquid form, a hot melt gun communicating with the apparatus, a support frame and movable arm on which the gun is mounted, and a motor driving a rack and pinion for positioning the hot melt gun over a selected strip coil.

Abstract: Sizing compositions comprising a combination of several adhesive agents capable of being cross-linked, an acrylic polymer and a coupling agent, are used to treat glass fibers in order to provide improved plastic reinforcing fibers especially suited to use in sheet molding compounds whereby molded articles, particularly large pieces formed therefrom, will have improved reinforcement and surface characteristics.

Abstract: A method of coating a pipeline comprising the steps of:Welding joints of pipe, end to end to form a continuous pipeline having an entry end and an exit end, winding said pipeline onto a reel, and coating the interior thereof by inserting a pig into the pipeline at one end thereof and affixing a cap at the other end thereof, introducing a coating liquid into the pipeline on the reel, and rotating the pipeline while the pig is maintained in a relatively static position so that the pig smoothly and evenly coats the pipeline as it rotates.

Abstract: In a novel method of forming a stator, armature, coil, etc., the steps of bonding a structure of magnet wire by applying a coating of reactive spooling oil to the length of magnet wire, followed by forming the magnet wire into a coil about an armature, making an open coil, or inserting the latter into a slot section of the core of a stator, and heating the magnet wire until the coating is converted to a hard adhesive thereby permanently forming the bonded structure of magnet wire.

Abstract: A process for producing a sheet-like material having a vapor-deposited metallic layer thereon, which comprises vapor depositing a layer of a metal, a layer of different metals in contact with each other, a layer of a metal alloy, a layer of a metal and a metal compound in contact with each other or a layer of a metal compound as the metallic layer on a support of a polymeric material having a glass transition temperature of at least about 0.degree. C., a composite of said polymeric material and paper, woven or non-woven cloth, or paper using at least one member selected from the group consisting of metals, metal alloys and metal compounds as an evaporating material in the vapor depositing, and then forming a layer of an organic material on the metallic layer by vapor deposition using an evaporable organic material as an evaporating material in the vapor depositing.

Abstract: A method of and apparatus for uniformly debossing and perforating a ribbon of thermoplastic sheet material or film through the use of vacuum in combination with a flash heating source such as a flow of hot air. The apparatus causes a ribbon of such film to be forwarded from a supply such as a roll of thermoplastic material, then about a circumferentially extending portion of a rotating debossing-perforating cylinder, and then downstream where the debossed and perforated film may be further processed or where it may be wound on a spool to form a roll thereof. The debossing-perforating cylinder comprises a perforated tubular member through which a plurality of independently adjustable levels of vacuum can be applied from within the cylinder to circumferentially spaced sections of the film in contact with the exterior surface of the perforated tubular member. The apparatus further causes a virtual curtain of hot air to be directed radially inwardly towards a predetermined zone of the perforated tubular member.

Abstract: Disclosed is a solution including an aromatic bis (ether dicarboxylic acid) component, an organic diamine component and a solvent system including a water-soluble organic solvent component, which may be a dipolar aprotic solvent or a monoalkyl ether of ethylene glycol or of diethylene glycol, and optionally water. The solution may be coated on a substrate and polymerized to form high quality polyetherimide coatings.

Abstract: Coating apparatus wherein a pretreated sheet metal ribbon passes from a supply coil successively through entry rolls, coating rolls, a curing oven, cooling apparatus, and tension rolls to a recoiler. The ribbon extends through the coating rolls and the curing oven as a long-span catenary. No looping facility is required. The apparatus incorporates novel leading end gripper means and trailing end gripper means for establishing and terminating the catenary in a manner which minimizes the unusable length of ribbon, that is, the uncoated leading end and uncoated trailing end of the processed ribbon. A method of initiating, maintaining, and terminating the catenary is disclosed.

Abstract: A texturized coating applied to one or both surfaces of bare or prepainted metal coil or sheet protects the surface against damage before, during, and after fabrication. The coating consists essentially of a thermosetting resin vehicle and a high molecular weight, hard, paraffin wax which, when cured, at a temperature greater than the melting point of said wax provides a reduced surface contact area of lubricating beads high in wax content.

Abstract: A method of processing a coated strand comprises heating the strand; directing a gas at the strand to cool and support the strand; and moving the strand through a zone having an atomized mist of liquid therein to cool the strand.

Abstract: Linear polyester resins, terminated with carboxyl groups, and suitable for inclusion in heat-curable fluid coating compositions, are advantageously modified by capping a minor fraction of the carboxyl groups with a hydrocarbyl glycidyl ether. The capped resins produce water-reducible formulations that exhibit a fast curing rate and excellent adhesion when formulated with hexamethoxymethylmelamine, for example. Such fluid coating compositions may be used as industrial coatings and coil-coatings.

Abstract: The invention relates to improving the heat transfer properties in boiling liquids of tubes and other surfaces by applying a non-conductive very porous reticulated organic foam layer in contact with the tube surface, and then electroplating a metal coating on exposed portions of the tube to build up a matrix of metal through the porous portions of the foam layer. Preferably, the tube is copper and the plating consists of an electroplated layer of copper. The foam is preferably in the form of a thin tape which is spirally wound about the tube. Pyrolyzation of the foam after plating provides a network of interconnected pores in the metal matrix which improves the heat transfer performance of the tube. The plated tube may also be swaged.

Abstract: The invention relates to a method of improving the heat transfer properties in boiling liquids of tubes and other surfaces by applying a very porous reticulated organic foam layer which has been precoated with graphite in contact with the tube surface, and then plating a thin metal coating on the foam substrate. Preferably, the tube is copper and the plating consists of an electroplated layer of copper which is applied over the conductive graphite coated foam. the foam is preferably in the form of a thin tape which is spirally wound about the tube. Pyrolyzation of the foam after plating improves the heat transfer performance of the tube. A method for applying the graphite to the foam is also disclosed.

Abstract: This invention relates to a method for protecting aluminum and aluminum alloy products against water staining. The method involves applying a continuous film of a protective composition to the surface of the aluminum product. The protective compositions useful for the invention are blends or reaction products of a polybasic acid and a partial ester of a polyol.

Abstract: Linear polyester resins, terminated with carboxyl groups, and suitable for inclusion in heat-curable fluid coating compositions, are advantageously modified by capping a minor fraction of the carboxyl groups with a hydrocarbyl glycidyl ether. The capped resins produce water-reducible formulations that exhibit a fast curing rate and excellent adhesion when formulated with hexamethoxymethylmelamine, for example. Such fluid coating compositions may be used as industrial coatings and coil-coatings.

Abstract: There is disclosed a catheter guidewire and a method for manufacturing the guidewire. In one embodiment, the guidewire is developed from a coiled semi-rectangular flatwire which has been coated with a surface lubricant such as Teflon prior to winding. In another embodiment, the flatwire is wound, polished by abrasion and then electropolished. A combination safety core wire extends longitudinally within the coiled guidewire and is welded to the respective ends of the guidewire. The safety core wire is a cylindrical wire whose uniform main body is smoothly tapered into an ultra-flexible flattened distal tip by means of combined mechanical metal forming and electro-etching techniques.