Abstract: A polyolefin layer carried on at least one surface of a polyolefin resin coated paper for use as a photographic paper support, contains a titanium oxide composition comprising 20-60 parts by weight of a rutile-type titanium oxide and 40-80 parts by weight of an anatase-type titanium oxide per 100 parts by weight of the titanium oxide composition. Such polyolefin resin coated paper is excellent in hiding power, resolving power, light resistance, whiteness, fading resistance, etc.

Abstract: Metal substrates, and particularly ferrous metal substrates, are now protected by having on their surface composite coatings wherein the base coating comprises a water-insoluble phosphatized coating from an organic phosphatizing composition. Over the phosphatized base coating there is then deposited a topcoating that is typically a paint topcoating. However, a rinse coating, such as a chromic acid solution, may be used on the base coating prior to a paint coating. A highly desirable adherent, corrosion-resistant and water-insoluble composite coating thereby protects the substrate metal.

Abstract: A composition consisting of 5 to 95 mol% of bismuth oxide (Bi.sub.2 O.sub.3) and 95 to 5 mol% of copper oxide (Cu.sub.2 O), or a composition consisting of 50 to 95 mol% of copper oxide (Cu.sub.2 O) and 50 to 5 mol% of manganese dioxide (MnO.sub.2), or a composition consisting of 5 to 95 mol% of bismuth oxide (Bi.sub.2 O.sub.3) and 95 to 5 mol% of manganese dioxide (MnO.sub.2), is thermally diffused in the grain boundaries of semiconductor ceramics composed mainly of strontium titanate (SrTiO.sub.3) to form highly insulating layers in the grain boundaries to thereby provide semiconductive ceramics wherein the rate of change of dielectric constant with temperature as well as the dielectric loss (tan .delta.) are smaller than in the conventional barium titanate type semiconductor products. Further, the insulation resistance is higher than in the conventional product.

Abstract: A decorative article of manufacture having at least one face which can be glued to other surfaces by using common adhesives and may be painted with a variety of paints and stains is disclosed.

Abstract: An elongated extruded strip adapted to be mechanically secured to a slotted sheet-like substrate is provided by extruding an elongated thermoplastic strip having a body portion which includes a rear face having a rearwardly projecting rail and then notching out longitudinally spaced portions of the rail to provide longitudinally spaced teeth. The strip is pressed against the sheet to force the teeth through the slots and heat is applied to the portions of the teeth which project through the slots to form a head or bead on the teeth and thereby mechanically secure the strip to the substrate. The strip is preferably formed to include at least one side support and/or at least one resilient adhesive tape may be used to allow the strip to deform when pressed against the substrate to force the teeth to project further through the slots to insure a tight securement. The teeth may have an arrowhead when the sheet-like substrate is of uniform thickness.

Abstract: The invention relates to a surface-coated blast furnace tuyere made of copper or copper alloy capable of sufficiently resisting heat attack and abrasion attack caused by the splashing of molten metal and slag. The invention also relates to a method of surface-coating the tuyere with advantages both in process steps and in economy.

Abstract: A process is provided for coating a metal substrate to give new and improved results in the preparation of resin coated metals, particularly steel, aluminum, magnesium, and zinc surfaced articles including galvanized iron or steel.

Abstract: A method of forming an article defining an integral protective surface comprising providing a mould defining at least that face of the article to be formed with the protective surface, inserting a plurality of minute hard chemically inactive spheroidal members into a medium bonding substance of less specific gravity than the spheroidal members and in which the article, at least that part of the article at the relevant surface, is to be moulded, maneuvering the mould and placing the bonding substance therein, before or after the spheroidal members have been inserted, so as to cause the spheroidal members by their density displacing the bonding substance to migrate to form a compact layer at the aforementioned surface and allowing the substance to harden to retain the spheroidal members at that surface.

Abstract: A process is provided for preparing a hexavalent chromium containing emulsion coating composition without causing coagulation of the emulsion and for providing an emulsion coating composition containing at least one water insoluble particulate film-forming thermoplastic resin which is highly effective as a coating for a metal substrate to give new and improved results in the preparation of resin coated metals, particularly steel, aluminum, magnesium, and zinc surfaced articles including galvanized iron or steel.

Abstract: An impact and energy absorbing mat is produced by extruding sheets of resilient compressible foamed polymeric resin sheets, preferably of a foamed ionomer, and having self formed skins on opposite faces. The sheets are stacked and the stack sliced along planes perpendicular to the sheets by hot wires to fuse the borders of contiguous sheets and form individual coherent slabs. Each slab is sandwiched between preferably similar polymeric resin films which are heated by hot plates to fuse the films to the slab surfaces and further fuse the skin borders to each other. Alternatively, the films may be omitted and self skins formed by the hot plate. The resulting mat includes side by side narrow foamed resilient resin strips having side skins, the borders of contiguous skins being fused to each other and the joined strips having their opposite faces covered by self or film formed skins fused thereto. The mat possesses unexpected superior energy and impact and other desirable properties.

Abstract: Vulcanizable elastomeric compositions are described which comprise an elastomer and from about 0.001 to about 0.1 lb mole of metal per 100 lbs of elastomer, the metal content comprising at least one metal which is an oxidizing constituent and a second metal which is a polymerizing constituent or calcium, said metals being present as(a) an organic carboxylic acid salt of two different metals combined with one or more carboxylic acids,(b) a combination of two or more different metal salts of organic carboxylic acids, or(c) a combination of a metal salt of an organic carboxylic acid and a mixed organic acid salt complex.Such vulcanizable elastomeric compositions exhibit improved adhesion to metal surfaces and are, therefore, useful in preparing rubber laminates containing metal reinforcing elements.

Abstract: Security paper which immediately reveals an attempt to alter handwriting thereon by the use of an alkaline ink remover and which is characterized by the incorporation therein of a pyrenesulphonic acid or a metal salt thereof, particularly an alkali metal or alkaline earth metal salt.Security paper incorporating such an acid or salt exhibits a fluorescent coloration when contacted with an alkaline ink remover.

Abstract: An electrode of a high pressure metal-vapor lamp such as a high pressure mercury-vapor lamp including mercury and rare-gas and a high pressure sodium-vapor lamp including mercury, rare-gas and sodium, is disclosed.The electrode has an improved electron emission material containing beryllium oxide and yttrium oxide coated on the substrate of the electrode whereby the electron emission material is uniformly coated to form an electron emission material layer which is firmly bonded and the starting characteristic is excellent and the lumen maintenance is excellent.

Abstract: A heat shrinkable film is laminated on a film having less heat shrinkage which can be a metal coated film with an adhesive composition having a relatively low shear strength. The heat shrinkable laminate film forms creases by heat shrinking it.

Abstract: In a magnetic recording substance comprising a non-magnetic support and a magnetic recording layer provided on the support, carbon black having a surface area of at least 700 m.sup.2 /g and an oil absorption of at least 300 ml (DBP)/100 g is contained in the magnetic layer thereby lowering the surface electric resistance without deteriorating the characteristics of the magnetic recording layer.

Abstract: Electrofax copy paper particularly for dry toner copiers comprises a substantially nonconductive substrate in combination with a photoconductive zinc oxide coating having greater light sensitivity, lower charge characteristicts and greater conductivity than conventional zinc oxide coatings. The substrate does not include any additives specifically for increasing its conductivity but relies on a balanced conductivity from front-to-back as a result of an even distribution of moisture throughout the substrate.

Abstract: Pressure sensitive magnetic image transfer media in the form of a thin film substrate having a thin layer of solvent evaporated residue of a liquid mixture incorporating substantially equal dispersed amounts of polyethylene homopolymer and magnetically sensible material with small amounts of mutually incompatible dissolved acrylic film forming resin material and ethyl hydroxyl ethyl cellulose.

Abstract: This invention relates to light absorbing inhomogeneous films and their use in luminescent display devices such as cathode ray tubes and electroluminescent panels to achieve high contrast ratio and minimal halation effect, and more particularly to an inhomogeneous film having a composition varying continuously from metal oxide to metal, and the method of making same. The metal is selected from the group consisting of tantalum and vanadium.

Abstract: An improved method is described for solvent casting ultrathin non-porous methylpentene polymer films. The casting solution comprises methylpentene polymer of a mixture thereof with organopolysiloxane-polycarbonate copolymer dissolved in a solvent system and is characterized by being able to spontaneously spread over the surface of the liquid casting substrate. In a preferred embodiment, large-area films less than 200 Angstroms in thickness may be repeatedly formed. The solidified films remain relatively free of tensile stress during formation. The casting solution is deposited in a narrow, longitudinally-extending defined region at the surface of the casting substrate. The surface area and perimeter of the defined region are enlarged over the surface of the casting substrate in a manner whereby the casting solution is moved relative to the casting substrate and, after desolvation, the polymer film formed remains stationary relative to the casting substrate and relatively free of tensile stress.

Abstract: A cork wall covering including a sheet of cork sandwiched between and adhesively secured to a backing material on one side and a polymerized vinyl resin material on the opposite or facing side.