Abstract: A portable automated coating plant is formed in sections that are transported individually to various work sites and the sections are assembled in end-to-end relationship for progressively cleaning and coating steel members, or the like. The members are passed in sequence through a shot blast machine a coating system, and a dryer.

Abstract: A method of applying a bearing lining at least 0.005 inch thick of polyarylene sulphide to a bearing backing, which comprises applying to said backing a powder composition consisting of at least 80% by weight of uncured polyarylene sulphide together with at least 10% by weight of precured polyarylene sulphide, said precured polyarylene sulphide having been cured by being heated in air for 2 hours at at least 400.degree. C and is in the form of particles with sizes in the range 53-211 microns, and then heating and curing the uncured polyarylene sulphide of the coating by heating to a temperature of at least 380.degree. C. To produce the cured powder, uncured powder is mixed with salt and then cured; the salt prevents the powder from coalescing, and is subsequently dissolved out.

Abstract: A method of providing improved adherence of photoresist to a silicon nitride layer on a semiconductor wafer by first preparing a heated solution of trichlorophenylsilane, immersing the nitride coated wafer in the trichlorophenylsilane solution, drying and baking the wafer prior to the application of the photoresist.

Abstract: A boiler tube coating and method are disclosed in which industrial steel tubes or pipes, for example, steel boiler tubes and/or integrated panels of steel boiler tubes, are provided with a fused overlay of a corrosion and erosion resistant coating comprised of a refractory hard component, e.g. tungsten carbide, dispersed through a corrosion resistant matrix alloy.

Abstract: A method of and apparatus for the immersion treatment of discrete lengths of galvanized conduit to inhibit the formation of "white rust" on the conduit surfaces are disclosed. The conduit is continually conveyed successively through three treatment zones comprising a cleaning bath containing a cleaning agent which removes lubricating oils, greases, dirt and the like from the conduit interior and exterior surfaces, a rinse bath and a coating bath containing a coating agent including chromate ions and a polymeric coating composition. A rotary star wheel-type conveyor is arranged in each treatment zone for transporting the conduits in spaced, substantially parallel relation to each other about an arcuate path through each bath and for inclining the conduit above the bath for a time effective to drain excess liquid from the interior and exterior conduit surfaces. Effective draining of excess liquid prior to entry to another zone minimizes contamination of the various baths and yields a high quality product.

Abstract: An olefin resin-metal bonded structure having a desirable combination of high corrosion resistance and peel strength, which comprises a metal substrate and an olefin resin layer bonded together through a primer layer, said primer layer containing (A) an oxidized polyethylene having an oxygen content of 0.1 to 10% by weight, a saponification value of 2 to 200, a density of 0.90 to 1.2 and an average molecular weight of 1000 to 50000 and (B) a coating-forming base resin having a density higher by at least 0.1 than the oxidized polyethylene and containing a functional group selected from hydroxyl and carbonyl groups at a concentration of at least 1 meq/g, the mixing weight ratio of the oxidized polyethylene (A) and the base resin (B) being within the following range:(A) : (B) = from 0.2 : 99.

Abstract: An article comprising a metal substrate in the form of a pipe or a container, said substrate being coated with a hardened epoxy resin composition formed from (A) a solid epoxy resin based on epichlorohydrin and a component selected from the group consisting of (a) 4,4'-diphenylolpropane, (b) 4,4'-diphenylolmethane and (c) a combination of (a) and (b), (B) from 1 to 12% by weight based on the epoxy resin of at least one hardener for said epoxy resin selected from the group consisting of (d) compounds of formula ##STR1## wherein R is hydrogen or an alkyl group of 1 to 6 carbon atoms or an aromatic hydrocarbon residue with 6 to 10 carbon atoms, (e) compounds of formula ##STR2## wherein R is hydrogen or an alkyl group having 1 to 6 carbon atoms or an aromatic hydrocarbon residue with 6 to 10 carbon atoms and (f) an adduct of any one of compounds (d) and (e) to an epoxy resin with an epoxy equivalent weight of from 50 to 2000, (C) a flow agent, (D) a thixotropic agent and a process of coating such metal substrate

Abstract: The process described herein involves a method of compacting and increasing the amount of particles, such as polytetrafluoroethylene, etc., deposited in fissures in a surface which involves heating the surface to expand the size of the fissures or pores in the surface, then depositing in the expanded fissures finely divided particles at a temperature at least 100.degree. F, preferably at least 300.degree. F below the temperature of the surface, and subsequently permitting the temperature of the surface and of the particles to come to equilibrium whereby the particles are locked into the fissures by interference fit. The surface is then subjected to a blasting fluid stream carrying finely divided particles applied at a pressure of 30-120 psi, preferably 40-80 psi, to compact the particles in the fissures, after which the original treatment is repeated by heating the surface, depositing additional finely divided particles at a temperature at least 100.degree.

Abstract: A method is disclosed for making an adhesive-coated high strength steel reinforcing member comprising the steps of: providing a steel member; austenitizing the steel member; passing the steel member through an adhesive coating bath wherein a uniform, continuous adhesive coating is applied at a rate sufficient to form a quenched structure of martensite, bainite or mixtures thereof; and, heating the coated steel member so as to effect drying and curing of the adhesive coating, and tempering of the steel member. The product obtained by this method is also disclosed.

Abstract: An enamel flux supplied by a sieve carried by an articulated support is discharged under gravity onto the edge of a displaceably mounted sanitary article such as a bath or wash-basin in such a manner as to form a projecting portion which is turned-down against the lateral surface of the edge by means of a jet of gas which is directed transversely by a positionally-adjustable nozzle.

Abstract: An electrical conductor is advanced along a path and is preheated to within a controlled temperature range. A reaction mixture is extruded about the conductor, the preheat of which causes the reaction mixture to release a reaction product that etches the surface of the conductor. This results in an insulated conductor unexpectedly having desired adhesion values of the insulation to the conductor without degrading the overall physical and mechanical properties of the insulation. In one usage, the reaction mixture is plasticized polyvinyl chloride with hydrochloric acid being released to perform the etching.

Abstract: A method for coating surfaces with organic film-forming compositions, which may contain pigments or coloring matter, characterized by applying the composition to a surface or substrate while subjecting the surface or substrate to a gaseous environment whose temperature is above the boiling point of the vaporizable solvent vehicle(s) of the coating composition and removing the solvent vehicle from the applied coating in a controlled manner while in said gaseous environment. The temperatures of the environment, the surface and the coating composition are selected relative one to the other such that the film of coating will gel yet not "skin over" until the solvent vehicle has been substantially completely removed from the coating, the solvent vehicle will not be substantially lost from the coating composition until the coating has been applied to the surface, or substrate, and the application of the coating to the surface or substrate will not materially cool the surface or the environment.

Abstract: A base metal is coated with a wear and impact resistant material comprising a mixture of tungsten carbide powder and nickel chrome boron powder which is spray applied by means of a stream of energy. This coating is thereafter covered by a thin layer of nitrogen-carried boric acid or boric oxide powder, forming a glossy protective film prior to fusing of the entire coating at elevated temperature.

Abstract: Methods and apparatus for coating the interior side seam of can bodies. The can bodies proceed down a line in serial order with end toward end and uniformly spaced from each other down the line extending from a can body side seaming machine. An airless spray coating is shot into each can body from the front and the rear to leave a coating of plastic along the interior side seam of a soldered can body.

Abstract: The invention is directed to the deposition of a coating on a substrate by reacting vaporized chemicals on contact with a heated surface to deposit a coating. According to the invention, the deposition surface is cleaned and coated in a single stage reactor. Means are also provided--where a boron deposit is wanted--to deposit an amorphous boron coating on the deposition surface.

Abstract: Fluoroelastomers, particularly ultra high temperature thermally stable fluoroelastomers are bonded to a metal substrate by forming a roughened bonding surface on one side of the substrate, controllably oxidizing the substrate at a temperature sufficient to cause the formation of an oxide coat on said bonding surface but below the tempering temperature of the substrate, adjusting the substrate to a temperature above the softening temperature of the fluoroelastomer, adhering the fluoroelastomer which includes a minor amount of an alkaline earth oxide dispersed therein, heated to a temperature sufficient to initiate curing thereof, directly onto said bonding surface, and expeditiously compressing said fluoroelastomer between said bonding surface and a mold face maintained at a temperature closely adjacent to the temperature of the substrate.

Abstract: A coating composition is provided which comprises (a) 10% to 90% by weight of at least one thermoplastic aromatic polysulphones preferably having a reduced viscosity of at least 0.3 (measured at 25.degree.C on a solution in dimethyl formamide containing 1 g of polymer in 100 cm.sup.3 of solution) and (b) 90% to 10% by weight of at least one fluorocarbon polymer.

Abstract: Periodic application of a composition comprising monoaluminum dihydrogen phosphate, Al(H.sub.2 PO.sub.4).sub.3, as a binder and an anti-wear agent such as finely divided hard metals, solid lubricants or the like to clean surfaces of molds used in manufacturing glass parts facilitates quick release of molded glass parts from the mold, provides a protective coating for the mold surfaces, and eliminates the necessity for frequent swabbing of the mold with oily compositions.

Abstract: A method for coating the inner surface of a metal pipe having an inner diameter of about 1 to 15 cm, which comprises feeding from one end of said metal pipe dry particles of a coating composition into the interior of the metal pipe preheated at a temperature of from a softening point of said coating composition to below a melting point thereof, sucking air at the same time from the other end of the metal pipe so as to form an air stream carrying the particles and flowing in the interior of the pipe at a flow rate of about 4 to 20 m/sec and to allow the particles to deposit on the inner surface of the pipe, and fusing the deposited particles at a reduced pressure of 10 to about 100 mm Hg to form a continuous film on the inner surface of the pipe.

Abstract: A hot-rolled coil having excellent adaptability for pickling can be produced by applying to the sides of the hot-rolled coil, a compound of an alkaline metal or alkaline earth metal, or an oxygen compound of boron, germanium, tin, antimony, lead, bismuth or vanadium. One or more of the aforesaid compositions when applied to a hot-rolled coil serves to suppress the formation of oxide film on the surface of the coil and/or promotes the solubility of the oxide film in the pickling tanks to the extent such oxide film does form.

Abstract: A material having a vapor pressure of at least 5 mm Hg at 490.degree.C. and selected from aromatic and cycloaliphatic hydrocarbons and alkyl derivatives thereof, nitrogen-, oxygen- and sulfur-containing compounds having hetero rings and alkyl derivatives thereof, substituted compounds of these compounds, and substances containing these compounds is used as starting material. Such starting material is brought into contact in a vapor state, if necessary, diluted with an inert gas, with a substrate heated at a temperature of 600.degree.-1500.degree.C. thereby depositing the resulting isotropic pyrolytic carbon on the substrate.

Abstract: A coated article is provided which comprises a metal substrate and an overlying layer of a composition comprising a copolymer of 3,3,3-trifluoro-2-trifluoromethyl propene and vinylidene fluoride and an effective amount of a stabilizing agent. More particularly, the stabilizing agent is present in an amount of at least about 0.2 percent by weight based upon the weight of the copolymer and is selected from the group consisting of the oxides and salts of divalent meatls and mixtures thereof. Preferably, the thickness of the coating on the metal substrate is at least about 1 mil.

Abstract: A priorly used three layer insulation covering for conductors forming a drop wire for connecting aerial distribution cables to a subscriber's premises is replaced with a single layer insulation of a plasticized polyvinyl chloride composition.It has been found that the temperature of preheat of the conductors must fall with a critical range to control the adhesion of the composition to the conductors to be within a desired range of values. The adhesion of the composition to the conductors is important from the standpoint of the manner of installation and of strippability. The adhesion must be sufficient to facilitate support of the drop wire by a clamp customarily attached to the subscriber's premises. However, the adhesion must not be excessively high in that the forces required to strip the insulation from the conductors may damage the surfaces of the conductor.