Abstract: Method for locally galvanizing a ferrous metal article, preferably a strip or a sheet.The article is coated on the surface to be protected from the galvanization by an aqueous suspension of cement and is thereafter dried, heated to a temperature above the melting point of the zinc and moved through a bath of molten zinc. It undergoes finally a cleaning step to remove the masking cement material and possibly a final rinsing.Articles thus obtained may be one side galvanized steel strips to be used in the automobile industry.

Abstract: A method of treating oxidized surfaces but especially metal surfaces using a mixture by which deep entry of porous rust can be achieved and reduction of the oxidation effected deep within the porous structure with substantial capacity to effect total conversion and especially with preferred chemicals, replacement with an insoluble protective coating can be effected. The process limits the need for physical removal of rust and the treatment of rust provides a different mechanism by which subsequent rusting can be reduced in the case of iron and steel and other metals.

Abstract: Disclosed are improved core-shell polymer compositions and an improved process for applying patterns to textiles by screen printing employing these polymer compositions as binders. The polymer comprises a core of styrene-butadiene copolymer which is at least partially encased by an integral shell of a copolymer of butyl methacrylate and methyl acrylate. When used as a binder in a screen printing process, this composition produces textiles which exhibit a surprisingly desirable combination of the properties of crock fastness, cyclic aging and hand.

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: A chromium-free process for phosphatizing a metal surface provides for applying to the surface an aqueous acidic solution having pH 1.5 to 3.0 and containing phosphate; a metal cation of valence two or greater; molybdate, tungstate, vanadate, niobate or tantalate ions; and drying the solution on the surface without rinsing.

Abstract: A method and apparatus for the continuous application of strip-, ribbon- or patch-shaped coatings of a noble metal to an electrically conductive tape by utilizing non-conductive belt means moving in concert with the tape as they simultaneously traverse an electrolitic solution. The non-conductive belt means shields the tape from the solution in those areas where a coating is not desired.

Abstract: This invention is directed to an improved zinc containing metallic coated ferrous product, particularly sheet and strip, which is resistant to intergranular penetration by zinc and embrittlement of the ferrous base. Use of such zinc containing metallic coated ferrous product in elevated-temperature service, such as found with certain appliances and automotive exhaust components, is enhanced by the coated products of this invention. The resistance to embrittlement of the zinc containing metallic coated ferrous base, when subjected to elevated service temperatures, is achieved by the use of a high-phosphorus containing steel base. For a plain content steel base, a phosphorus content of at least 0.020% by weight, preferably at least 0.030%, and more preferably at least 0.039% was found sufficient to render such zinc-alloy coated ferrous base resistant to embrittlement by zinc.

Abstract: Copper or copper alloy sheet or foil displaying excellent solderability and high resistance to tarnish is prepared by the provision over its surface of a coating containing a copper salt of an organophosphonic acid. To form the coating, the sheet or foil is immersed for a short time in an aqueous solution containing a phosphonic acid, rinsed and dried, the treatment being combined with or preceded by oxidation of the sheet surface.

Abstract: A composite conductive structure in integrated circuit devices is described. The composite conductive structure includes an insulating substrate on which is provided a conductor of a refractory metal substantially nonreactive with silicon dioxide. A layer of a silicide of the refractory metal covers the conductor and a layer of silicon dioxide covers the layer of the silicide. A method of making such structures is also described.

Abstract: An apparatus and method for applying a uniform coating of liquid solder to a flat tube particularly at and adjacent to the side edges of the tube. The apparatus has spaced heated platens comprising shaping die members located opposite to each other and including tube embracing recesses forming a slot through which the liquid solder coated tube is passed. The disclosure also includes spacing means for spacing these die members apart a distance equal to the width of the coated tubes and yieldable means such as springs urging the spaced heated platens toward each other to bear against the side edges of the tube together with means for drawing the coated tube between the heated platens and means for heating the platens in the vicinity of the tube to a temperature above the melting point of the solder as well as passages permitting draining of excess solder from the tube during its passage between the heated platens.

Abstract: A rust-preventive composition is provided which is useful for protecting metal surfaces. The composition contains as essential ingredients (1) an aryl phosphate ester (2) an oil-soluble calcium sulfonate, and (3) a liquid polyolester.

Abstract: A method of applying a layer of a source substance over a recipient, consisting in that the substance of the source is converted to gas and then precipitated onto the surface of the recipient, wherein the substance is, according to the invention, applied over at least one intermediate body and then the substance is transferred from the intermediate body onto the recipient.

Abstract: An integrated circuit and process for producing an integrated circuit. The circuit includes two interconnection layers, a lower layer being separated from the substrate by a thin dielectric layer, and separated from the upper layer by a thick dielectric layer, the interconnections between the two interconnection layers being situated outside the zone of the active elements of the integrated circuit. The circuit comprises active elements deposited for example on portions of an n-type layer supported by a substrate of semi-insulating gallium arsenide. Ohmic and Schottky contacts are connected either to the lower interconnection layer or to the upper interconnection layer. The thin dielectric layer is for example a silica layer whose thickness is less than 1,000 Angstroms, the thick dielectric layer having a thickness of 5,000 to 10,000 Angstroms.

Abstract: A process is disclosed whereby there is formed a high resolution screen in which laterally directed back reflections of light produced within a luminous layer, which reflections have heretofore been generally laterally directed so as to result in decreased resolution, are minimized by the inclusion of an antireflecting surface at the back side of the luminous layer. In the present process, the antireflecting surface is formed by subjecting a substantially planar aluminum surface on a support layer to a steam treatment to convert the aluminum surface to a microstructured surface of boehmite, a hydrated aluminum oxide, having a plurality of randomly positioned leaflets extending from the surface.

Abstract: A method of treating a part which contains titanium in its outer surface luding the steps of removing a portion of the natural oxide layer, placing the part in an enclosure, evacuating the enclosure, isolating the evacuated enclosure, and introducing oxygen in an amount ranging from 10.sup.-3 to 2.55 milligrams for each square centimeter of total outer part surface area, and heating to a temperature from 450.degree. C. to 880.degree. C.

Abstract: A reference element for ion-selective membrane electrodes is prepared by coating portions of a layer of silver with a composition comprising a metal salt electrolyte, a hydrophilic binder and a membrane of the group consisting of an oxidizing agent and a silver halide emulsion.

Abstract: A method of inhibiting the fatigue of aluminum comprising the steps of immersing aluminum in an aqueous solution of a water soluble cyanide compound at room temperature and continuously maintaining the aluminum in contact with the aqueous solution. The aqueous solution is substantially free of chromium.

Abstract: An erosion resistant surface is provided for pump components, valves, fluid conduits, diffusion chambers, fluid cleaners, and the like, wherein the surface is exposed to high velocity flow of a fluid containing abrasive particulates. Sharply increased erosion life of such surfaces can be obtained by providing a plurality of closely spaced depressions in the surface, with each depression having a depth in excess of its width, and then applying an erosion resistant coating to the remaining original surface and all surfaces of the depressions.

Abstract: Roughening effect of low-temperature diffusion aluminizing of age-hardenable stainless steels, is offset by applying a nickel or cobalt plating not over 0.1 mil thick before the aluminizing.

Abstract: A toner image pressure-fixing device has a pair of pinch rolls arranged in rolling engagement with each other to provide a nip through which a carrier sheet with a deposit of toner particles thereon is passed to fix the deposit to the carrier sheet by pressure. One of the pinch rolls is of a diameter smaller than that of the other and is solid while the other pinch roll is hollow. The small-diameter pinch roll is resiliently urged against the large-diameter pinch roll by leaf springs and is backed up by a single back-up roll which is disposed on the side of the small-diameter pinch roll substantially diametrically opposite to the large-diameter pinch roll and is resiliently urged against the small-diameter pinch roll whereby the small-diameter pinch roll is prevented from being deflected by pressure produced when a carrier sheet is passed through the nip between the pinch rolls.