Abstract: Metal vaporization from precious metals is reduced by applying to the surface of the metal a flame sprayed coating comprising a refractory material and a glass.

Abstract: A marking system for a textile web in production comprises a heat-, water-, and chemical-resistant substrate layer having a front and back face, pigment forming indicia carried on the front face of the layer, and a heat-, water-, and chemical-resistant cover layer formed of a transparent and flexible synthetic resin and embedding the substrate layer and pigment at least over the front face thereof. The cover layer is bonded to the web. The cover layer secures the indicia on the substrate layer and the latter on the web. The pigment is printed on the front face of the substrate which itself is made of glass fibers. The substrate layer is provided on its rear face with a layer bonding it to the web. The bonding layer in turn can be an adhesive, or can be of the same water-, chemical-, and heat-resistant material as the cover layer.

Abstract: An activated carbon product such as a charcoal cloth or felt has, in addition to any activating material, a metal uniformly dispersed therein. The metal may be catalytic or bactericidal, and a particularly preferred product of the invention contains silver and is suitable for use as a surgical dressing. Such products can be produced by a conventional activation procedure using a mixture of halides, even if the further metal halide is substantially insoluble in the impregnation solution used for activation, by incorporating in the solution ammonia and a sequestering agent such as citric acid.

Abstract: A magnetic recording medium excellent in magnetic properties and durability is provided which is characterized by containing magnetic powder coated with a reaction product between an aminosilane coupling agent and at least one compound selected from the group consisting of an acid anhydride of 6 to 22 carbon atoms and an alkylketene dimer. A magnetic paint containing said coated magnetic powder has good dispersibility of the magnetic powder and provides improved adhesion between the magnetic powder and a binder.

Abstract: Machine parts are disclosed which are subjected to rolling or sliding conditions, wherein the friction partners are protected by layers with low static and dynamic coefficients of friction which are selected with regard to their tribological properties and whereby the layers are constituted by carbides and/or nitrides and/or carbonitrides and/or borides and/or silicides and/or oxides of an element or elements selected from Groups III to VIII of the Periodic Table in the form of mixtures or mixed crystals which are deposited in a suitable manner and, according to their physiochemical properties, are combined for the particular application. Preferably one of the friction partners comprises TiC or MoSi.sub.2 and the other comproses TiN or SiC or Si.sub.3 N.sub.4.

Abstract: A method is disclosed for hot press-forging a normally frangible optically integral crystalline mass ("optical body") in a closed die, by directly pressing a surface of the mass while it is peripherally surrounded by a crystal powder the amount of which is computed from the deformation ratio desired and the geometry of the die. The crystal powder is compacted by the non-uniformly directed forces transmitted to it by the optical body, and eventually the crystal powder is sufficiently dense so as dynamically to constrain the optical body at its peripheral surface. The dynamic constraint of the optical body while it is being forged is effected in such a way as to permit deformation of the optical body without fracturing it, and, without affecting its optical integrity.

Abstract: A magnetic recording medium of the high recording density type is disclosed, which comprises a support, and a magnetic recording layer formed on at least one side of the support. The magnetic recording layer is made of a dispersion, in a binder, of magnetic alloy particles and TiO particles in an amount of from 0.1 to 20 wt % of said magnetic alloy particles.

Abstract: A solder glass comprised of about 65 weight percent Sb.sub.2 O.sub.3 ; about 30 weight percent B.sub.2 O.sub.3 and about 5 weight percent V.sub.2 O.sub.5. The glass is black and extremely visible when employed as a molten seal in electrical devices such as tungsten-halogen lamps.

Abstract: A grinding- or polishing implement can be produced by providing a rectangular sheet (1) at both sides with segments (2) formed by slits from the outside towards the center. Hereafter the sheet is folded around the center across a glue string (5), and then the two folding edges are folded together and glued together for the formation of a closed ring. This ring can thereafter be placed on a spindle (6) preferably between retaining discs (8).In this way raw material can be saved in the production of rings, just as the rings can be used more economically in an implement as the grinding qualities are improved through the big number of segments, their completely uniform size and placing along the periphery of the implement and their ability to adjust and shape themselves according to the prepared members.

Abstract: The subject invention relates to the fabrication of metal oxide patterns on a substrate adapted for use with thin film magnetic heads. The metal oxide pattern has a precisely defined geometry including nearly vertical side walls, for minimizing read/write errors. In addition, a filler material formed from a non-magnetic, non-metallic compound is provided on the substrate in a pattern complimentary to the metal oxide pattern. In accordance with the subject invention, the top surface of the metal oxide pattern and the filler material are co-planar. By this arrangement, subsequent layers may be uniformly deposited without discontinuities. The subject method includes a plurality of distinct masking and etching steps in order to achieve the desired result.

Abstract: Magnetic recording media comprising a combination of titanium monoxide and carbon black powders in specific amounts along with magnetic particles dispersed in a resin binder are disclosed.

Abstract: A heat resistant decorative laminate panel and a process for forming the same are provided. The panel includes a wood substrate to which a discontinuous layer of molten metal is applied by a plasma arc spray apparatus. An isocyanate layer is applied over the metal and extends through the discontinuities to the substrate to both anchor the metal to the substrate and to provide a surface for accepting the decorative layer. The decorative layer then is adhesively applied and subsequent top coat layers are applied. The final top coat preferably is a photocurable material.

Abstract: A magnetic recording media comprises a polyester substrate having 1000/mm.sup.2 or more protrusions of polyester oligomer, and a ferromagnetic thin film of 400 .ANG. or larger thickness both formed on the surface of the polyester substrate; the recording media has substantially no squealing even at 30.degree. C. at over 80% relative humidity.

Abstract: There is disclosed a formulation for the formation of a black oxide particularly useful in the fabrication of multi-layered printed circuits. The formulation comprises an oxidant and a hydroxide and is characterized by the addition of a water soluble or dispersible polymer to regulate the properties of the black oxide solution.

Abstract: A multilayer plastic film suitable for use in the manufacture of garbage and trash bags wherein the film comprises a first outer layer of low pressure, low density polyethylene, a core layer of high pressure, low density polyethylene, and a second outer layer of high pressure, low density polyethylene.

Abstract: A multiple-layer wall is provided for a hollow body to sustain high thermal and mechanical loads and to afford adequate thermal insulation. The wall has, on the inside, a heat and/or wear resistant ceramic inner layer and, surrounding it, a preferably prestressed retaining layer of fiber reinforced plastic. An intermediate layer of a thermally insulating ceramic material can also be provided. The wall can also have a retaining layer of metal. At least the retaining layer is shrink-fitted. The retaining layer of metal and/or the intermediate layer moreover can be deposited by a sintering process. Prestressing is achieved also by the shrinkage resulting from the sintering process. As a result of prestressing, the inner layer, when under internal pressure, comes under substantially no circumferential tension or under circumferential compression only. The wall is used especially with precombustion chambers of Diesel engines or with cylinder barrels or internal combustion engines.

Abstract: A new embedded-lens retroreflective sheeting which exhibits superior properties, including superior angularity, and which is made by a new method of manufacture involving lamination techniques. Microspheres are embedded into a first polymeric layer to less than one-half the average diameter of the microspheres, and a pre-formed spacing film is laminated to the microsphere covered surface of the first layer so as to obtain conformation of the spacing film in a substantially constant thickness over a useful portion of the back surface of the microspheres.

Abstract: The present invention is concerned with a ceramic formed body comprising a ceramic matrix and at least one phase of ceramic incorporation material dispersed therein, characterized by a dense, microcrack-free ceramic base matrix and compressive zones incorporated therein which consist of a mixture of the base matrix material with unstabilized zirconium dioxide particles which are predominantly monoclinic at ambient temperature.The present invention is also concerned with a process for the production of such ceramic formed bodies and with the use thereof as constructional elements in the hot region of heat engines.

Abstract: A magnetic recording medium is disclosed. The medium is comprised of a support base having position thereon a subbing layer and a magnetic layer. The subbing layer is comprised of an amorphous saturated polyester having a glass transition temperature of 10.degree. C. to 60.degree. C. The recording medium provided has excellent adhesiveness between the magnetic layer and the support due to the presence of the subbing layer. Furthermore, the resulting magnetic recording medium provides excellent electromagnetic characteristics such as a desirable video S/N ratio.

Abstract: A tile for use in constructing an entrance mat. The tile has a flat base and low walls surrounding the base for retaining water on the base. Scraper means are provided on the base for scraping snow, water and/or slush off the feet of people using the mat. Means are provided on each wall for use in connecting the tile to an adjacent tile. A plurality of the tiles are connected together to form a mat. Means are provided in each wall of a tile for directing water out of the tile when it reaches a certain level. The invention is also directed toward a mat made up of a plurality of the tiles.