Abstract: Electroluminescent phosphors, electroluminescent panels and lamps made with such phosphors, and a process and apparatus for treating phosphors are disclosed in which the phosphor particles are coated with a very thin coating of SiO.sub.2, to protect the phosphor particles from aging due to moisture intrusion. The phosphor particles are coated in a cold wall reactor by the pyrolytic decomposition of silane in the presence of heat and oxygen to a coating thickness of approximately between 0.1 and 3.0 microns. The apparatus and method of coating includes the placement of a quantity of phosphor in a cup-shaped heated reactor bowl and subjecting the particles to a temperature of about 490.degree. C. and an atmosphere of silane and oxygen, while continuously mechanically agitating the particles with a blade arrangement in which the particles are continuously rotated and turned so as to expose the surfaces of the heated particles to the reaction atmosphere.

Abstract: Radiation image converting materials such as a radiation image storage panel and a radiographic intensifying screen comprising a support and a phosphor layer provided on the support which comprises a binder and a phosphor dispersed therein are provided with an electrically conductive polymer layer.

Abstract: The invention relates to a pharmaceutical plaster that adheres to the mucosa, consisting of two discrete layers that adhere well to one another, which may contain pharmaceutical active ingredients suitable for topical application or for systemic treatment. It is distinguished by outstanding long-lasting adhesion to the mucosa and is very pleasant in use, especially in the mouth as an oral plaster.

Abstract: A silicon carbide sintered body containing not less than 0.03% by weight of boron, a total of not more than 0.3% by weight of metallic element impurities including the boron, not more than 1.0% by weight of free carbon, a total of not more than 0.15% by weight of non-metal impurities other than the free carbon, and the balance essentially consisting of silicon carbide, and having a density of not less 3.10 g/cm.sup.3. The sintered body is manufactured by heating a molding of a mixture containing a silicon carbide powder, a boron-containing sintering assistant, and a carbon-containing oxygen scavenger to a sintering temperature. The molded body is maintained at a temperature lower than the sintering temperature during the heating process until an oxide film covering the silicon carbide powder is substantially removed by the oxygen scavenger, and the molded body is then sintered at the sintering temperature under a non-pressurized condition.

Abstract: An arrangement is provided for use in the preparation of food materials, to substantially de-oil or de-grease same. The preferred arrangement comprises a two component structure having an outer protective layer and an inner absorbent layer. The inner absorbent layer may comprise a variety of oil absorbing materials, including conventional ones. The outer protective layer is generally permeable, and operates to protect food from direct contact with the absorbent material, and also to disperse heat from the food, which might otherwise inhibit the ability of the absorbent inner material to perform. The preferred outer protective material is a permeable, non-woven, polypropylene web arrangement having the particular physical characteristics described. A method is provided for degreasing food through application of such an arrangement.

Abstract: The present invention relates to compositions and methods of use of materials in dental restoration, more specifically to the combined use of ethylenediaminotetraacetic acid (EDTA) and sodium hypochlorite to prepare a mechanically prepared tooth for crown replacement or for filling a cavity.

Abstract: Alumina coated with diamond comprises an alumina substrate, a silicon carbide film formed on the alumina substrate, and a diamond film formed on the silicon carbide film.

Abstract: A transdermal drug delivery device comprising a drug formulation-containing reservoir defined by a backing layer and a drug-permeable membrane layer, a ring-shaped layer made of an adhesive that is incompatible with one or more components of the drug formulation that is peripheral to the reservoir outwardly of the membrane layer and a peelable liner layer that underlies at least the membrane layer with a first heat seal between the backing and the membrane about the perimeter of the reservoir and another concentric heat seal between the backing and the release liner positioned outwardly of the first heat seal, the heat seals providing barriers that isolate the drug formulation from the adhesive.

Abstract: There is provided an improved honeycomb type gas conduit characterized by alternating noncorrugated aluminized ferrous metal foil and corrugated metal foil sheets in contact with each other at the apices or crests of the corrugation. The conduit has an inlet and an outlet for the gas and the honeycomb structure from 20 to 200 cells per square inch. The axes of the cells are parallel throughout their length. A hardened ceramic lip is provided at the leading edge of the cells, and preferably at the leading and trailing edges. When hardened by curing, e.g., with high temperature, the ceramic applied as a slip, forms fillets at the nips between the corrugations and the flat foil sheets, and cements the two together very tightly.

Abstract: A transparent article for reflecting solar energy comprising a metal alloy oxide film which exhibits color and a low reflectance metal alloy film is disclosed along with a sputtering method for its production.

Abstract: Retroreflective sheeting has been improved by a coating comprising silica and a transparent polymer selected from aliphatic polyurethanes, polyvinyl chloride copolymers having a minor amount of a comonomer containing at least one carboxylic acid or hydroxyl moiety, and acrylic polymers. Silica comprises 10-80 weight percent (10-70% in the case of polyacrylates) of the transparent protective coating. For example, a solution or dispersion of polyurethane is mixed with a silica sol and possibly other ingredients (e.g. wetting agent, UV light absorber and adhesion promoter), and the composition is coated onto the retroreflective sheet and dried. The coated retroreflective sheeting has superior soil and dew repellancy, retaining a higher percentage of original brightness after exposure to dirt and/or dew conditions.

Abstract: A laminated signboard comprises a backing member overlaid with an attached reenforcing network into which a layer of polymer-fortified concrete is interlocked for bearing three dimensional indicia. The indicia is carved into the set up, but not practically hardened concrete. Usually, the concrete surface including the indicia is coated with a weather-resistant coating, and at least part of the indicia is coated to contrast with the remainder of the surface.

Abstract: A superconducting structure is formed by depositing alternate layers of aluminum nitride and niobium nitride on a substrate. Deposition methods include dc magnetron reactive sputtering, rf magnetron reactive sputtering, thin-film diffusion, chemical vapor deposition, and ion-beam deposition. Structures have been built with layers of niobium nitride and aluminum nitride having thicknesses in a range of 20 to 350 Angstroms. Best results have been achieved with films of niobium nitride deposited to a thickness of approximately 70 Angstroms and aluminum nitride deposited to a thickness of approximately 20 Angstroms. Such films of niobium nitride separated by a single layer of aluminum nitride are useful in forming Josephson junctions. Structures of 30 or more alternating layers of niobium nitride and aluminum nitride are useful when deposited on fixed substrates or flexible strips to form bulk superconductors for carrying electric current. They are also adaptable as voltage-controlled microwave energy sources.

Abstract: A teartape for packaging materials, and particularly such materials based on polyolefin films, includes a base film coated with a pressure sensitive adhesive composition. The teartape is affixed to the packaging material by the adhesive composition. This avoids the problem of distortion which can occur when affixing conventional teartapes to such packaging materials by means of hot melt wax compositions. The teartape is applied to moving packaging material by controlling the speed of the teartape in accordance with the speed of the packaging material so as to reduce tension imbalance. The speed of the teartape may be controlled in dependence upon the tension in the teartape. This can be achieved by supplying the teartape from a dispenser having a brake means (4,5) and a drive means (10,11,12) for regulating the speed of the teartape in dependence on the tension in the teartape.

Abstract: A fire protective blanket construction providing multiple time protection for application to electrical conduit and cable trays to preserve operation of electrical circuitry carried by the cables in the event of exposure to fire. Comprising the prefabricated fire resistant blanket are back-to-back blanket sections separated by a moisture impervious metal foil. Disposed within the outer of the blanket section on the exterior side of the foil is a transversely extending envelope containing a selected thickness of trihydrated alumina in powdered form. When exposed to high temperature, the trihydrated alumina emits a steam vapor for protecting the article to which the blanket has been applied for a time period correlated to the thickness and other thermal properties of the individual elements comprising the blanket.

Abstract: A chandelier pendant consisting of a carrier element which is flat at least on one side, a plurality of decorative elements being cemented in an ornamental arrangement to its flat surface.

Abstract: Molded silicone rubber unitary bodies of a carbon black containing portion and a portion containing substantially no carbon black which is obtained from a platinum catalyzed addition reaction composition are useful as keyboard pads, zebra-type connectors, and electrical joints. These molded bodies can be made by tightly contacting the uncured composition containing substantially no carbon black with a cured silicone rubber containing the carbon black and then heating to cure.

Abstract: A wear-protective layer for cutting tools is formed by the chemical vapor deposition or chemical plasma deposition or plasma sputtering by depositing a plurality of layers to a support of the cutting tool to form a multilayer in which each successive layer remoter from the support has a higher elasticity module and a greater diamond portion than the preceding layer. The outermost layer is a layer of diamond.

Abstract: A surface structure of AlN substrate comprising:an AlN substrate,an intermediate layer disposed on the AlN substrate, anda metallized layer disposed on said intermediate layer, said intermediate layer comprising at least aluminum, nitrogen and oxygen. The metallized layer has a main component of one of Mo-Mn alloy, MO and W, and has a thickness of 1-20 .mu.m.This surface structure is produced by coating a surface of AlN substrate with metallizing layer components, heat treating the resultant coated substrate at a temperature of 200.degree.-500.degree. C. under an oxidizing atmosphere, and further heating the heat treated coated substrate at a temperature of 1200.degree.-1400.degree. C. under a nonoxidizing atmosphere having a dew point of -35.degree. to 5.degree. C.

Abstract: A reinforced plate-like laminated sintered body is produced by the steps of providing a green laminate with an alumina-based layer including zirconia provided at least partly over one surface of the base material and simultaneously sintering the laminated surface layer and base material layer. The thickness ratio of the surface layer with respect to the base material layer is in the range of 1/100 to 20/100 and the laminate has a ratio of shrinkage moduli, calculated as the ratio of the shrinkage modulus of the base material layer when sintered alone to the shrinkage modulus of the surface layer when sintered alone, within the range of 1.01 to 1.08.