Abstract: Resistance to cathodic or galvanic disbondment of plastic-metal laminates is obtained by incorporating in the metal bonding plastic material used in forming the laminate an amount of conductive carbon black effective to minimize or prevent disruption of the bond by galvanic action which otherwise would take place in the absence of the conductive carbon black. The conductive carbon black is used in a relatively high concentration, for example, between about 20 and about40 percent, with the balance of the composition being made up of a polymeric material containing an amount effective to promote bonding between the metal and the polymeric material of an ionomeric copolymer containing about 25 to about 98.5 percent ethylenic units and between about 1.5 to about 30 percent carboxylic acid units, the major proportion of which is in the free acid form. Advantageously, two-thirds or more of the carboxylic units are in the free form and the remainder, if any, are neutralized by zinc.

Abstract: An electrical connector which is covered on its exterior surface with a non-adhering, non-electrically conductive material. The electrical contact surfaces of the electrical connector are free of the non-electrically conductive material. This electrical connector is manufactured by mounting the electrical connector on a mounting fixture wherein the electrical contact surfaces are in direct contact with the mounting fixture, heating the electrical connector to within a desired temperature range, then submerging the electrical connector in a quantity of powdered plastic which evenly coates the exterior surface of the electrical connector, removing the electrical connector from the powdered plastic, reheating of the electrical connector to cause fusing of the powdered plastic into an integral mass, cooling of the electrical connector and then removing such from the mounting fixture.

Abstract: An improved process is provided for preparing a product containing particles individually coated with a cured, thermoset phenolic resin. The process comprises mixing particulate matter with an uncured resin and a lubricant at a temperature which causes curing of the resin. The product obtained by this process shows superior properties as a propping agent for treating subterranean formations.

Abstract: The disclosure relates to a modified ionomer blend which is characterized by excellent metal adhesion, good weatherability, and low gloss, consisting essentially of an intimate mixture of (1) about 20 to 60 percent of an ethylene-propylene rubber, in which ethylene is the predominant component, (2) about 40 to 80 percent of a copolymer containing ethylene units and carboxylic acid containing units, said copolymer containing between about 25 and 98.5 percent ethylene units and between about 1.

Abstract: Polymeric coatings are provided on steel pipes to protect the same against corrosion. Monomers and prepolymers are permanently adhered to the surface of steel pipes by graft polymerization to form a barrier which keeps out moisture, oxygen and other corrosive gases from the steel substrate. The monomers and prepolymers are chosen to provide a low moisture vapor transmission rate and oxygen permeability.

Abstract: There is provided an improved powder flame spraying apparatus and method having a preheating nozzle in advance of a plurality of final heating nozzles into the converging flame envelopes of the latter of which hardfacing powder is dispensed. This powder is aspirated into a pressurized stream of inert gas at a variable rate readily adjusted between maximum and no-flow by selectively regulating the gas pressure at and/or spaced downstream from the outlet of the powder aspirator. Regulation of the gas pressure is achieved by venting variable quantities of gas to the atmosphere or air to the aspirator outlet as appropriate to provide a desired powder flow and to achieve a desired volume and velocity of gas and powder delivery into the final heating flames.

Abstract: A method for coating a metal surface by depositing a mixture comprising a polyolefin and an ionomer on the metal surface, which is at a temperature sufficient to fuse the mixture to the metal surface, and thereafter cooling the resulting coated surface; and the coated article produced by the method. The method is especially useful in coating a ferrous metal surface, such as, for example, the interior surface of a pipe.

Abstract: Heat treating stranded together conductors in a reeled condition by passing electrical current along a path through some of the conductors in one direction around the reel and then through other conductors in the opposite direction around the reel. In preferred methods, the current is passed in one direction through one half of the conductors and then in the opposite direction through the other half.

Abstract: A novel polymer alloy coating is provided consisting essentially of polyphenylene sulfide and an amount of polyimide. The polyimide is produced by the crosslinking and curing of an acetylene terminated aromatic polyimide oligomer resin. The amount of polyimide utilized is sufficient to enhance the adhesiveness of the polyphenylene sulfide to a metal substrate without substantially changing the melt flow properties, chemical resistance and thermal stability of the polyphenylene sulfide. A polymer alloy resin composition is also provided for application to the metal substrate to produce the polymer alloy coating. The novel polymer alloy coating is particularly suitable for coating pipes, particularly pipe couplings for oil and gas well production pipes which are exposed to extreme temperatures, pressures and corrosive environments.

Abstract: A process is provided for making a multilayer integrated circuit substrate having improved via connection. A first layer M1 of chrome-copper-chrome is applied to a ceramic substrate and the circuits etched. A polyimide layer is then applied, cured, and developed and etched to provide via holes in the polyimide down to the M1 circuitry. The top chrome is now etched to expose the M1 copper in the via holes. A second layer M2 of copper-chrome is evaporated onto the polyimide at a high substrate temperature to provide a copper interface at the base of the vias having no visable grain boundaries and a low resistance. M2 circuitization is then carried out.

Abstract: A process of coating an electric component with a setting artificial resin by dipping the component into the liquid resin-hardener compound and curing the deposited layer by the application of heat, comprising heating said component before dipping said component into said resin-hardener compound.

Abstract: A low cost coating protects metallic base system substrates from high temperatures, high gas velocity ovidation, thermal fatigue and hot corrosion. The coating is particularly useful for protecting vanes and blades in aircraft and land based gas turbine engines.A lacquer slurry comprising cellulose nitrate containing high purity silicon powder is sprayed onto the superalloy substrates. The silicon layer is then aluminized to complete the coating.The Si-Al coating is less costly to produce than advanced aluminides and protects the substrate from oxidation and thermal fatigue for a much longer period of time than the conventional aluminide coatings. While more expensive Pt-Al coatings and physical vapor desposited MCrAlY coatings may last longer or provide equal protection on certain substrates, the Si-Al coating exceeded the performance of both types of coatings on certain superalloys in high gas velocity oxidation and thermal fatigue.

Abstract: Aluminum-based alloy films and metallization layers that are patterned by reactive ion etching (RIE) are passivated by etching surface portions of the films or layers with a phosphoric-chromic mixture to remove contaminants and then oxidizing the exposed surface portions in an oxygen atmosphere.

Abstract: An apparatus for forming a self-locking patch type fastener which includes carrier means for moving a plurality of threaded metal fasteners along an arcuate path, clamping means associated with the carrier means to clamp the fasteners to the carrier means, movable resin transfer means having a fastener contact surface, and the transfer means being positioned to move the contact surface into contact with the fastener as the fastener is moved in arcuate path past the transfer means. The speed and direction of movement of the contact surface relative to the carrier means during contact between the contact surface and the fastener is such as to provide an even transfer of resin from the contact surface to deposit a plastic patch thereon. Unclamping means are positioned with respect to the carrier means to unclamp the threaded fasteners after deposit of the plastic patch thereon and conveyor means then convey the fasteners away from the carrier means.

Abstract: A method of and apparatus for impregnating a fabric reinforcement structure with a liquid impregnant especially suited for impregnants which set rapidly under normal conditions. The reinforcement structure is continuously advanced through a column of liquid impregnant to which impregnant is continuously supplied so as to cause the impregnant to move in a direction opposite to that in which the reinforcement structure is advanced.

Abstract: A process is described for thermo-chemically coating ferrous metal articles, especially small intricate ferrous articles. The process involves preparing a coating composition for homogenizing a complex of metal oxides and other solids in an organic liquid composition to obtain an emulsion, pre-heating the ferrous articles to an elevated temperature, immersing the pre-heated ferrous articles in the coating composition, withdrawing the articles and allowing them to cool.

Abstract: A method of applying a ceramic coating to a metallic workpiece is proposed in which the workpiece is heated in a range of 500.degree. C. to 950.degree. C. and the coating directly plasma sprayed thereon in an atmosphere of air before the workpiece has formed any considerable oxide skin thereon. In this way the use of the conventional bond coat is avoided, while the amount of tensile stress on the ceramic at working temperature is reduced by the pre-stressing effect thus induced.

Abstract: A compound comprising molybdenum disulfide emulsified in a resin of the para phenyl phenol formaldehyde group, diluted in a vehicle of the methylbenzene group in a homogenized emulsion is deposited onto metal surfaces preheated to a surface temperature of 350.degree. to 500.degree. F. The heat stored in the metal promotes quick evaporation of the benzene vehicle while the resin sets. The cure and evaporation of the carrier may be further promoted by baking the coated article in an oven at a temperature of 300.degree. to 500.degree. F.

Abstract: A process and material for treating metal handling and shaping devies with a material containing sub micron sized particles of graphite in a liquid carrier is described that forms a penetraring and lubricating coating on the metal handling and shaping devices so as to maintain a smooth surface condition capable of resisting adhesion of contaminates thereto and the build up of foreign materials thereon.

Abstract: An expanding earth anchor assembly is disclosed for attaching cable means or the like conveniently employed in supporting utility, communication, or other above ground structures. Jaws attached to an anchor rod are expandable outwardly by rotation of the rod from above the surface of the ground when the jaws are inserted to a proper depth and at an appropriate angle in the soil. An important aspect of the invention resides in protection of the anchor rod assembly located below ground level, inasmuch as anchor rods buried in the ground are ordinarily subject to an accelerated rate of electrolytic corrosion, which is avoided through practice of the invention.

Abstract: Carnauba wax is contacted with perchloroethylene which will extract para methoxy cinnamic acid esters. The extracted solution is sprayed into the heated mold cavity. The solvent will evaporate leaving a coating of the para methoxy cinnamic acid ester on the mold.

Abstract: Disclosed is a method for coating substrates with a stress-crack resistant coating of a fluoropolymer and a polyfunctional compound having two or more allyl groups such as triallylcyanurate or triallylisocyanurate wherein the fluoropolymer is a polymer comprised of ethylene, chlorotrifluoroethylene or tetrafluoroethylene and optionally a termonomer such as 3,3,3-trifluoro-2-trifluoromethyl propene. The ingredients are homogeneously blended and applied to the substrate which is maintained at an elevated temperature to allow flow-out of the coating mixture thereby forming a stress-crack resistant coating.

Abstract: A process for coating steel with a non-dripping pickle oil is disclosed. The coating process uses a heated hydrocarbon oil containing a long-chain linear alcohol as the coating medium. The alcohol converts the hydrocarbon oil into a meso-solid at ambient temperatures. The coating provides corrosion protection for the steel during storage and shipping. The process is also applicable for converting slushing oils and oils for drawing and stamping of metal into meso-solid coatings.

Abstract: Surfaces of thermally conductive substrates are covered with thermoplastic polymers, particularly certain fluorocarbon polymers by bonding said polymeric materials directly to surfaces of said substrates. Adhesives, etchants, or the like are not used as bonding elements. The process involves treating the surfaces to make them wettable by water and then cleaning the surfaces, if necessary, followed by heating the substrate to a temperature at which the polymer melts, gels or softens (herein called the softening point), then placing the polymeric material into contact with the prepared surfaces and applying pressure on the polymeric material to force it into fusing and bonding contact with the heated surface and then cooling the substrate to a temperature below the softening point of the polymer. The products produced are preferably rolls. In their covered form as produced by this invention they are useful as processing rolls in office copier's fusing systems, rolls used in food cooking processes, and the like.

Abstract: A filled, low or medium density polyethylene or other polyolefin composition is used to form a polymer coating on an internal cylindrical metal surface such as, for example, the interior surface of a pipe.

Abstract: A process of treating coke oven doors and jambs with a material containing micro micron particles of graphite in a liquid carrier is described that forms a penetrating lubricating adhesive coating on the coke oven doors and jambs which acts to prevent leakage of tar and other coke by-products as heretofore common in the art and the resultant inability of maintaining a sealing relation between the doors and jambs.

Abstract: Steel ribbons and wires having quenched martensite or bainite microstructure are disclosed having an organic adhesive coating which is degraded at the steel-adhesive interface. The products are useful as steel tire reinforcements.

Abstract: A method of depositing a hard, fine grained metal or semi-metal alloy is described wherein a volatile halide of the metal or semi-metal is partially reduced and then deposited as a liquid phase intermediate compound onto a substrate in the presence of an alloying gas. The liquid phase deposited on the substrate is then thermochemically reacted to produce the hard, fine grained alloy. Also described are products which may be produced by the above method.

Abstract: A process of treating the interior steel walls and gas and/or air moving fans or blowers in electrical precipitation installations with a material containing micro micron sized particles of graphite in a liquid carrier is described that forms a penetrating lubricating adhesive coating on the interior walls and fan blades and blower parts of the electrical precipitation installations and which acts to prevent the accumulation of coal, tar, dust, fly ash and other particles thereon.

Abstract: A prosthesis for cement-free bonding to bone comprising a metal substrate coated with a biologically active glass or glass-ceramic of uniform composition and thermal coefficient of expansion and free of flaws resulting from thermo-mechanical stresses, the glass coating being bonded to the metal substrate by ion diffusion of the interface wherein the thermal coefficients of expansion of the metal substrate and the glass or glass-ceramic coating are substantially different.

Abstract: A powder marking agent comprising a fine powder which comprises, on a total volume basis,(a) about 48% to about 92% of a thermoplastic linear polyester,(b) about 5 to about 30% of a heat-resistant pigment, and(c) about 2 to about 40% of a fluorine-containing polymer,with the total by volume percent of the heat-resistant pigment (b) and the fluorine-containing polymer (c) being about 45% or less and a marking method which comprises applying the powder marking agent described above onto a metal member in a marking pattern.

Abstract: The adhesion of poly(arylene sulfide) coatings to metal substrates is improved by incorporating an effective amount of finely divided manganese dioxide into a poly(arylene sulfide) primer coat to prime the metal substrate. The primer coat can subsequently be coated with a poly(arylene sulfide) coating or with any other suitable finish coating which will adhere to the primer coat.

Abstract: A process is disclosed for the production of a sun heat energy absorbing coating on a metallic substrate. The metallic substrate is pretreated for subsequent coating with a film of powder varnish and thereafter a coating based on a solid synthetic resin is deposited electrostatically or in a whirl sintering procedure. The coating consists of an inner brightening layer containing a metallic powder and an outer colored second layer absorbing the sun energy.

Abstract: A process for coating inorganic substrates, especially metallic or metalloid substrates, sintered metal carbides and carbon materials with carbides, nitrides and/or carbonitrides, using certain nitriles as sources of carbon and nitrogen, is described. High deposition rates and smooth coatings of good to very good adhesion are achievable by this process.

Abstract: Items are coated with substantially homogeneous pyrolytic carbon by first heating them to the desired temperature, e.g., about 1200.degree. C. to 1600.degree. C. in a nonoxidizing atmosphere. A mixture of gas including an inert gas portion and a hydrocarbon portion is supplied to the heated enclosure at a rate so that the mixture approaches the temperature of the heated items and the hydrocarbon decomposes. The hydrocarbon portion includes between about 25 and about 60 volume percent acetylene and the remainder propylene. The exothermic characteristics of acetylene is such that the heat given off upon decomposition is sufficient to sustain the coating reaction.

Abstract: A process of treating a coke oven door and jamb with a material containing micron colloidal particles of graphite in a liquid carrier is described that forms a penetrating and surface coating on the coke oven doors and jambs which acts to prevent leakage of tar and other coke by-products as heretofore common in the art and the resultant inability of maintaining a sealing relation between the door and jamb.

Abstract: A process of treating the interior steel walls and gas and/or air moving fans or blowers in electrical precipitation installations with a material containing micron colloidal particles of graphite in a liquid carrier is described that forms a penetrating and surface coating on the interior walls and fan blades and blower parts of the electrical precipitation installation and which acts to prevent the accumulation of coal tar, dust, fly ash and other particles thereon.

Abstract: A method of coating metal pipes externally with a uniform thin coating of a synthetic resin, such as a polyamide, polyethylene or polyvinyl chloride, which comprises heating the pipe to a temperature to enable a frit of discrete particles to bond to a pipe in a chamber through which the pipe is passed and which is charged with a mixture of a gas and the particles. Thereafter the frit is smoothed by heating the pipe to a higher temperature as it leaves the chamber to cause the particles to coalesce.This is a continuation of application Ser. No. 616,314, file 24 Sept. 1975 and now abandoned.

Abstract: Metallic articles, for instance, ferrous strips are metallized, for instance, zinc coated by passing the heated article through a coating chamber and applying thereto a continuous stream of the molten coating metal so as to uniformly and evenly metallize said article. Thereafter, excess molten coating metal is removed from the coated article by hot gas blasting and the hot gas blasted article leaving the coating chamber is immediately cooled. Wiping means may be provided before applying the molten coating metal so as to deflect any molten coating metal dropping from the metallic article passing therethrough, while rollers may be arranged between the coating metal applying means and the hot gas blasting means. Said rollers serve to remove the major part of excess coating metal from the coated metallic article and to stabilize movement of the metallic article passing through the coating chamber.

Abstract: The novel coating composition contains a uniformly dispersed perfluorocarbon polymer in an organic solvent solution of an aromatic polysulfone resin; finishes of the novel composition have excellent grease and stain resistance, good thermal stability, toughness and durability and good release properties and are useful as coatings for vessels, appliances, industrial equipment and in particular as release finishes for bakeware and cookware.

Abstract: A method of bonding a bioglass layer to a metal substrate comprising heating the metal substrate having a roughened, oxidized surface to about a temperature at which the expansion of the metal is substantially equal to that of the bioglass at the temperature above which the thermal expansion of the bioglass is non-linear, immersing the heated metal surface in molten bioglass, the time of immersion being of such duration that the temperature of the metal does not rise substantially above the temperature to which it is heated, allowing the coated substrate to cool whereby the bioglass layer is bonded to the metal substrate by ion diffusion and thermo-mechanical stresses in the bioglass and metal layer are relieved at a substantially equal rate and the product produced by said process.

Abstract: The interior of cylindrical metal containers are coated with a thin, substantially uniform comestible coating by spraying finely divided resinous particles into the container after it has been preheated by a plasma arc-generated flame to a temperature above the softening point of the resin. The process is capable of coating containers at rates up to about 600 containers per minute with a substantially pore-free film having a thickness less than about one mil to as low as 0.1 mil and lower. Typical of containers coated by the process are conventional two-piece aluminum containers. Typical preheat temperatures are from about 150.degree. F. to about 525.degree. F. for aluminum containers and from about 150.degree. F. to about 1000.degree. F. for steel containers. A typical preheat time is from about 30 to about 300 milliseconds. Typical resins are finely divided thermosetting epoxy powders. The plasma arc device may also be used to post-heat coated containers to mature the coating.

Abstract: A method of improving the thermal emmissivity of a cathode heater wire to allow lower temperature operation of the heater without an attendant lowering in the cathode operating temperature, in which method the surface of a tungsten or molybdenum wire is oxidized, then coated with a salt of a refractory metal, and finally heated to reduce the salt and oxide to their metallic forms thereby causing the heater wire to be roughened and darkened.

Abstract: A method of providing corrosion resistance to metal surfaces is disclosed. The method of the invention involves treating the metal surfaces with an ascorbic acid (Vitamin C)-containing composition free of beta-diketones and preferably in combination with molybdenum. The invention is particularly effective as a passivating pretreatment for ferrous metal substrates which are to be subsequently topcoated.

Abstract: This invention is concerned with a process for bonding a durable low surface energy polymeric coating to a metal or oxide surface. The metal or oxide surface is first treated with an alkali, thereby maximizing the hydroxide ion concentration on the surface, and then in a rigorously dry state with a rigorously dry fluorinated material to form the polymeric coating. The fluorinated material has the formulaRf -- O -- (CH.sub.2).sub.n -- SiX.sub.3wherein Rf is a fluorinated lower alkyl group, n is an integer from 2 to 10, and X is a halogen, cyanide or alkoxy group.

Abstract: The improved method of making a self-locking threaded element having a strongly adhered plastic body on its threaded surface providing strong frictional engagement between the element and a mating threaded surface in which fine particles of heat softenable plastic are applied against a heated threaded surface in a plurality of spaced successive portions in time and temperature controlled relation such that a first portion is softened by heat prior to application of a successive portion of the particles to aid in holding particles of successive portions to enable manufacture at a higher rate and/or at lower temperatures than heretofore practicable.

Abstract: Shaped aluminum bars fresh from an extruder machine are coated with a specific organopolysiloxane composition while remaining uncooled and staying at temperatures not lower than about 250.degree. C, or at a temperature between about 550.degree. and 250.degree. C. The thus coated aluminum bars are then, preferably, subjected to annealing. The coatings formed on the surfaces of the aluminum materials have a superior resistance to attack by chemicals, weather, stains and heat as well as excellent adhesion and mechanical properties.

Abstract: A method of drying cans to be covered with a layer of varnish and/or a printed upon layer, according to which the can body is brought into snug body engagement with a heating body along that can surface which is located opposite the can surface to be covered with the layer while the temperature of the heating body is controlled in conformity with the maximum temperature for hardening the layer to be applied to the respective can.

Abstract: Substrate surfaces are rendered resistant to coking by vaporizing an alkoxysilane in contact with the surface to form a protective layer of silica thereon.

Abstract: A method comprising the application of colloidally suspended graphite emulsified in water as a parting agent to hot surfaces and in particular to ladles to facilitate pouring therefrom and the formation of sound castings.