Abstract: The present invention relates to the compounds of the formula (1) and to organic electroluminescent devices, in particular blue-emitting devices, in which these compounds are used as host material or dopant in the emitting layer and/or as hole-transport material and/or as electron-transport material.

Abstract: Metal articles having a durable visible marking on a smooth Type III hard anodized surface particularly useful for shock absorber tubes are produced by applying an alkaline solution to the anodized surface for not less than about 15 seconds at temperature of 100°-140° F.; applying a pattern of lacquer based solvent ink to said surface; and sealing the applied pattern by applying a liquid selected from the group consisting of nickel acetate, cobalt acetate and boiling water to said pattern.

Abstract: The subject of the invention is a layer system for the decorative coating of galvanizable work pieces. In order to have a layer system which meets strict requirements with regard to corrosion resistance and which, at the same time, has a high abrasion resistance and, in addition, provides a high degree of freedom with regard to decorative coloration, the invention proposes a layer system which is formed by galvanic deposition and comprises a base coat consisting of at least one bright layer and one discontinuous chrome layer as well as a cover coat of mechanically resistant materials deposited by the PVD process.

Abstract: This invention relates to a structure on a bi-color rust-proof barrier layer of a tool head, mainly used to form a surrounding recessed section marked with indication of a size, a model, a trademark and the like on a surface of a tool head (a metallic object) so that the structure on the rust-proof barrier layer painted with the different two colors is provided between the recessed section and the peripheral surface, thereby highlighting the indication marked at the recessed section so as to increase the distinctions of said object from other object.

Abstract: The invention relates to laminates including at least a first resin impregnated sheet having an electroluminescent compound dispersed therein and electrical leads coupling the electroluminescent compound to a source of electrical energy. The laminate is manufactured by applying an electroluminescent compound to a first resin impregnated sheet, applying electrical leads to the first sheet for the selectively application of electrical energy and heating and pressing the first sheet.

Abstract: An article includes a colored electroplated metallic coating comprising both nickel and zinc, on an underplate of copper, brass, bright nickel or matt nickel, supported on a metallic or plastic substrate, various colors in the electroplated coating being exemplified. The electrolyte contains Ni2+, Zn2+, (NH4)+ and thiocyanate ions in specified concentrations, but no oxidative ion, color variation of the coating being achieved exclusively by variation of current density, time of the electroplating step and current quantity, provided that the current density at the cathode underplate is within the range of 0.01 to 0.5 A/dm2.

Abstract: There is provided a stainless steel sheet material, used for a semiconductor manufacturing device, to which it difficult for fine dust to be attached and from the surface of which the attaching dust can be easily washed away. Also, there is provided a method of manufacturing the stainless steel sheet material. A stainless steel sheet material characterized in that: the number of pinholes, the area of each pinhole exceeding 0.25 mm2, in the area of 10 cm2 on the surface of a skinpass-rolled stainless steel sheet material is not more than 10; and the average surface roughness Ra on the center line in the direction perpendicular to the rolling direction is not more than 0.15 &mgr;m. A method of manufacturing a stainless steel sheet material comprising the steps of: annealing a stainless steel cold-rolled sheet in a heat-treatment furnace having no support rollers in a temperature region exceeding 600° C.

Abstract: The present invention is directed to polishing the surface of an airplane part to an improved specularity by adding the additional step of sanding prior to the polishing step.

Abstract: An ultraviolet-curable adhesive composition which comprises (A) a bisphenol type epoxy (meth)acrylate having a molecular weight of 450 to 3,000, (B) a urethane (meth)acrylate having a molecular weight of 400 to 10,000, (E) a (meth)acrylate monomer other than (A) and (B), and (F) a photopolymerization initiator, and an article having a cured layer of the above adhesive composition.

Abstract: A temperature-sensitive reversibly deformable laminate which is reversibly deformable towards both sides thereof with changes in temperature to take three states; an original state at room temperature, a contracted state at a low temperature, and an expanded state at a high temperature, wherein the laminate is composed of at least two resin layers having different coefficients of thermal expansion.

Abstract: A polypropylene molding composition which comprises 0.5 to 15% by weight of dark mineral fibers, in particular basalt fibers, can be processed to moldings having a decorative surface. These moldings are used for domestic appliances, for motor vehicles, in the building sector for office items and many other applications.

Abstract: A method and apparatus for producing a synthetic board from cellulosic or lignocellulosic fibers is disclosed wherein a standard isocyanate binder is emulsified and immediately applied to the fibers before consolidation into a finished board product. The apparatus includes an emulsification and application nozzle comprising a diluent inlet, a binder inlet, a mixing section for emulsifying the diluent and the binder, and a spray nozzle for applying the binder/diluent emulsion to the fibers. The method includes supplying a binder stream, supplying a diluent stream, emulsifying the binder with the diluent and immediately applying the emulsion to the fibers. The method further includes flushing the binder/diluent emulsion using the diluent at the end of a binder application run to prevent curing of the emulsion and clogging of the apparatus. The binder/diluent emulsion can be applied to the fibers either in the blowline or downstream of the blowline, such as in the blender.

Abstract: A new technique for forming non-rectifying electrical contacts to III-V semiconductor materials, without the use of dopants or of an alloying procedure, is disclosed. In accordance with this technique, an electrical contact is formed simply by depositing a region of material (onto the semiconductor material) having a composition which includes at least one metal element and at least one of three specific Group V elements, i.e., P, As, or Sb, and having a bulk electrical resistivity equal to or less than about 250 .mu..OMEGA.-cm. Alternatively, a contact is formed by depositing nickel, or a nickel-containing material essentially free of gold and silver, and having a composition which does not include any of the three Group V elements. The nickel, or nickel-containing material, is then reacted with the substrate to form a compound having a composition which includes nickel as well as one of the three Group V elements.

Abstract: An article of jewelry of platinum and fine gold of the type wherein the two metals are connected to one another by applying the fine gold in the solid state on the platinum and heating the fine gold to its melting temperature. The article of jewelry includes area portions of thin sheets of fine gold and reinforcements of platinum bordering the area portions of fine gold.

Abstract: A coin blank for the coining of coins, medals and like products, obtained by the forced joining of two metal parts, each of them being of different metal or metal alloy, one forming the internal central part and the other the external perimetrical part, said forced joining of said two component parts being carried out, in a definitive and inseparable way, preferably upon the minting operation.

Abstract: An ornamental part for watches such as a watch case having a composite coating layer consisting essentially of titanium and titanium nitride, the ratio of the two components being varied in the direction of the thickness of the layer. The composite coating may be formed by the physical vapor deposition method in which the titanium in the vapor phase is reacted with nitrogen under a glow-discharge condition. The coating thus formed has a gold color and excellent physical and chemical properties.