Abstract: An inexpensive method for making a durable porous overcoat on a noble metal exhaust electrode of a solid electrolyte exhaust gas oxygen sensor. The electrode is coated with aluminum flakes and the aluminum flakes oxidized in situ by heating in an oxidizing atmosphere.

Abstract: This invention deals with the fabrication of radiation emitting diodes having a small diameter shaped integral microlens formed by etching. Initially an oxide layer is deposited on the backside of the processed slice; then a ring pattern is opened in the oxide. An etch is used to form a ring groove with a mesa in the center. The center oxide dot over the mesa is removed and the etching continued to round off the edges of the mesa and to form a smooth shaped structure. Various shapes and diameters may be achieved with different ring dimensions and with different etch times.

Abstract: A method of providing a substrate with a layer of a tertiary compound comprising silicon, silicon carbide and a transition series metal. In accordance with the method, a substrate having at least a surface layer thereon of a transition series metal is coated with silicon carbide particles having an average particle diameter in the range of up to about two microns. The coated substrate is then heated in an inert atmosphere to a temperature between 1000.degree. and 1300.degree. C. for sufficient time to allow diffusion to occur between the silicon carbide and the transition series metal layer, thereby forming the tertiary compound. Substrates coated with the tertiary compound are particularly suitable for preparation of alkali metal/polysulfide batteries wherein the substrate may be exposed to corrosive attack by molten polysulfide salts.

Abstract: An apparatus and method are provided for depositing submicron patterns on a substrate. The apparatus includes an evaporative source located opposite the substrate so that molecules from the source can be deposited directly on the substrate. A mask is located between the evaporative source and the substrate, the mask having openings which correspond to the desired pattern to be deposited on the substrate. A plate is located between the mask and the substrate, the plate having an aperture for allowing evaporated molecules to be deposited on the substrate according to the pattern of the mask.

Abstract: What is disclosed are a method for protectively coating a substrate which comprises applying to said substrate a coating of a plastisol containing a vinyl chloride polymer and then baking the coating at a temperature from 120.degree. C. to about 200.degree. C., said plastisol further comprising from about 0.1 to about 4.0 percent, by weight of said plastisol, of a Schiff base containing from 0.05 to 1.0 azomethine groups per 100 grams of compound and further containing a uretidine dione or isocyanurate group in the molecule and a plastisol such as is used in this method.

Abstract: Liquid compositions suitable for providing silica-based coating films on to various substrate surfaces are prepared by the reaction of an alkoxy-containing silane, a lower carboxylic acid and an alcohol in the presence of a reaction accelerator which is an organic acid different from the above mentioned lower carboxylic acid. The reaction proceeds very smoothly even in the absence of any halogen-containing compounds, and the resultant liquid coating compositions are free from the problem of corrosion due to the presence of a halogen-containing ingredient.

Abstract: A method is disclosed for reducing the reactivity of a glass surface by blocking reactive sites such as silanol groups at the glass surface with a molecular layer of fluorocarbon. The method involves adsorbing multivalent metal cations at the glass surface to provide anchoring sites for the chemisorption of otherwise nonreactive fluorocarbons.

Abstract: A fast curing coating composition that is adapted for use as an automotive topcoat and which upon curing forms a hard, glossy, durable coating exhibiting excellent resistance to solvents and water. The coating composition which may contain greater than about 55 percent by weight of nonvolatile solids and, exclusive of pigments, solvents and other nonreactive components, consists essentially of:(A) a polyepoxide resin having a number average molecular weight (M.sub.n) of between about 140 and about 3,000;(B) a reactive catalyst comprising at least one phosphonic acid derivative;(C) an amino resin crosslinking agent; and(D) optionally, a hydroxy functional additive.The phosphonic acid derivative is included in the composition in an amount sufficient to produce between about 0.8 and about 1.

Abstract: This invention is an improved insulation for electric cables and an improved method of making the insulation. Cross linked polyethylene insulation is too stiff, particularly in high voltage cables which require a thick layer of insulation. Copolymers of polypropylene have electrical properties substantially equal to those of polyethylene, but do not have the necessary physical strength and have to be filled with clay or other filler that provides the required strength but degrades the electrical characteristics. A novel feature of this method is the utilization of the screw of the extruder to effect a mixing of the ingredients in an improved polymer system for cable insulation.

Abstract: A process for the concurrent deposition and regeneration of alumina onto a substrate from an aqueous sodium aluminate solution comprising immersing the substrate in an aqueous sodium aluminate solution of which the composition is controlled and adjusted by passage through a regeneration circuit where alumina is added to make up for the quantity deposited. The invention may be used in the production of adsorbents for the lead present in the exhaust gases of internal combustion engines.

Abstract: A conductive video disc replica is cleaned by washing with an aqueous solution comprising an oxidizing agent, a base and a surfactant of a fluorocarbon added in an amount so that the solution has a surface energy of about 35 dynes/cm.sup.2 or less. This solution removes metallic and oxygen-containing impurities from the surface of the disc and leaves a fluorinated surface.

Abstract: A pigment-free coating composition comprising an acidic dispersion of colloidal titania, colloidal silica and hydroxylated silsesquioxane in an alcohol-water medium. A coating of the composition cured on a plastic substrate such as polycarbonate results in a hard, abrasion-resistant protective coating. Such coatings transmit visible light, but absorb wavelengths of ultraviolet light which cause degradation of the substrate surface and resultant adhesion-loss of the protective coating upon weathering. A cured coating of these compositions deposited on metal substrates such as aluminum results in a hard, abrasion resistant coating which offers slightly more corrosion protection than such a composition without colloidal titania.

Abstract: A coating composition comprising a polyfunctional monomer (a) having at least 3 (meth)acryloyloxy groups, a (meth)acrylic acid mono or diester of polyethyleneglycol (b), a sulfonic acid (c), a phosphoric acid ester (d), an ethanolamine (e), organic solvent, and a photosensitizer.

Abstract: A simplified method of waterproofing masonry walls such as basement walls subjected to water from the outer surface by coating the inner surface with an anionic silicone emulsion that dries to produce an elastomeric film is disclosed. The silicone emulsion consists essentially of an anionically stabilized hydroxyl endblocked polydiorganosiloxane, amorphous silica, and an organic tin salt, the emulsion having a pH of 9 or greater.The emulsion coating when dried provides an elastomeric film that bonds to the surface with sufficient force to resist the pressure of any water that may diffuse through the wall from the outer surface. The method of this invention provides a waterproof coating that also resists the effects of cracks in the substrate, temperature extremes, molds, fungus, or mildew, as well as possessing a long useful life.

Abstract: This invention relates to a coating composition which comprises a polyfunctional monomer having at least three acryloyloxy groups and/or methacryloyloxy groups in one molecule, a monomer having not more than two acryloyloxy groups, and/or methacryloyloxy groups in one molecule and optionally a photosensitizer and which can form a crosslink-hardened film excellent in abrasion resistance upon curing by irradiation with actinic radiation in air and a method for producing a synthetic resin molded product having an abrasion resistant surface.

Abstract: A patternwise coated powder layer can be formed by a process comprising the steps of coating a photosensitive composition, which contains an aromatic diazonium salt as a photosensitive component and becomes sticky by exposure, onto the surface of a substrate to form a thin layer, subjecting the thin layer to patternwise exposure with actinic radiation to produce stickiness at the exposed area, and then contacting powder particles with the thin layer after exposure to make the thin layer to accept the powder particles according to the powder acceptability of the thin layer. According to this process, for example, the phosphor screen of a color picture tube can simply be produced.LIST OF PRIOR ART (37 CFR 1.56 (a))The following reference is cited to show the state of the art:Japanese Patent Laid-Open Publication No.

Abstract: This invention relates to a coating composition which comprises a polyfunctional monomer having at least three acryloyloxy groups and/or methacryloyloxy groups in one molecule, a monomer having not more than two acryloyloxy groups and/or methacryloyloxy groups in one molecule and optionally photosensitizer and which can form a crosslink-hardened film excellent in abrasion resistance upon curing by irradiation with actinic radiation in air and a method for producing a synthetic resin molded product having an abrasion resistant surface.

Abstract: A scuff-masking composition for glass vessels comprises a specific organopolysiloxane and a curing catalyst therefor, and is highly effective in a method of masking scuffs on glass vessels, which comprises providing the composition on the scuffs and curing the coated composition.

Abstract: The present invention resides broadly in a method for the preparation of paper having improved water and/or solvent resistance which comprises applying to a base paper a plastic particle containing formulation, and then wetting the formed coating with a solvent to which the plastic particles are sensitive. The present invention is particularly applicable to the preparation of electrostatic paper masters of improved water resistance for lithographic printing having a photoconductive layer and a barrier coat to which the photoconductive layer is applied. The barrier coat contains a binding amount of a binder resin and filler at least a portion of which is an amount of said plastic particles sensitive to the solvent system of the photoconductive layer, the amount of plastic particles and sensitivity being sufficient to materially increase water resistance.

Abstract: The present invention relates to a process for treating polyvinylidene fluoride surfaces to enhance adhesion of other polymers thereto comprising applying to at least one surface thereof a solution consisting essentially of a coating polymer selected from a polyurethane or an alkyl polymethacrylate and at least one aprotic polar solvent in which said polymer is soluble, and exposing said surface to a temperature of from about 100.degree. to 300.degree. C. for a time sufficient to evaporate said solvent.