Abstract: Granules based on pyrogenically prepared silicon dioxide doped with aluminum oxide by means of an aerosol, which granules have the characteristic data: mean particle diameter: from 10 to 150 &mgr;m BET surface area: from 25 to 100 m2/g pH value: from 3 to 6 tamped density: from 400 to 1200 g/l They are produced by dispersing in water pyrogenically prepared silicon dioxide doped with aluminum oxide by means of an aerosol, spray drying the dispersion, and optionally carrying out tempering and/or silanization. In the silanized form, the granules have the following characteristic data: mean particle diameter: from 10 to 160 &mgr;m BET surface area: from 15 to 100 m2/g pH value: from 3 to 9 tamped density: from 400 to 1200 g/l carbon content: from 0.3 to 12.0 wt.

Abstract: It is the object of the invention to propose a method for open-end rotor spinning, wherein the formation of cover yarn, in particular the so-called “belly bands”, is at least appreciably reduced. In accordance with the invention, the fiber flow exiting a fiber guide channel has a directional component in the direction of rotation of the rotor, while the yarn leg (3) extending, from the draw-off nozzle to the rotor groove, is curved opposite the direction of rotation of the rotor, at least near the rotor groove (1), during the spinning process. The creation of this direction of curvature of the yarn leg (3) takes place during the piecing process.

Abstract: The use of granular materials based on pyrogenically produced silicon dioxide in pharmaceutical compositions, the pharmaceutical compositions per se, as well as an adsorbate consisting of the granular material and at least one further substance selected from pharmaceutical active constituents and auxiliary substances, and the production of such adsorbates, are described.

Abstract: The invention relates to a saw wire consisting essentially of a steel wire, an intermediate layer and a metallic binding phase into which diamond grains with an average diameter of 10 to 50 micrometers are inserted, characterized in that the metallic binding phase has a hardness of between 600 and 1100 HV 0.1 and consists of an inner layer and an outer layer which are arranged concentrically around the steel wire provided with the intermediate layer. The inner layer has a thickness of approximately between 10 and 25% of the average diamond grain diameter, while the thickness of the outer layer is such that the overall thickness of the metallic binding phase is 45-55% of the average diamond grain diameter and the diamond grains have an average interval of not more than 5 times their average diameter. Other fine particles with an average diameter of 1 to 6 micrometers are located between the diamond grains with an average diameter of 10 to 50 micrometers.

Abstract: Glass is produced by depositing presintering composition on a preform set into move in front of a plasma torch which moves back and forth substantially parallel to a longitudinal direction of the preform, a first feed duct feeds the plasma with grains of the presintering composition while optionally a second feed duct feeds the plasma with a fluorine or chlorine compound, preferably a fluorine compound, mixed with a carrier gas.

Abstract: A method for producing ultra-high purity, optical quality, glass articles is disclosed which involves:

Abstract: Radiation-curing coating systems which contain a silanized silica, where the silane is hexamethyldisilazane, 3-methacryloxypropyltrialkoxysilane and/or glycidyloxypropyltrialkoxysilane as the silanizing agent. The radiation-curing coating systems can be used for coating derived timber boards, solid wood, wood veneers, parquet, decorative papers, decorative films, thermoplastics and thermosetting plastics, mineral and polymeric glasses, metals (for example aluminium, high-grade steel, phosphated, chromated and galvanized steel sheets, copper), lacquered surfaces, printing inks and leather.

Abstract: The use of granulates based on pyrogenically-produced silicon dioxide in cosmetic compositions, the cosmetic compositions themselves, and an adsorbate of the granulate and at least one other substance, selected from cosmetic active ingredients and auxiliary substances, and the production of such adsorbates, are disclosed.

Abstract: Granules based on pyrogenically prepared silicon dioxide doped with aluminum oxide by means of an aerosol, which granules have the characteristic data: 1 mean particle diameter: from 10 to 150 &mgr;m BET surface area: from 25 to 100 m2/g pH value: from 3 to 6 tamped density: from 400 to 1200 g/l

Abstract: A component surface is coated with friction-increasing particles in a matrix, wherein the matrix comprises an upper layer and a lower layer, the lower layer being a metallic binder phase which is customary for friction-increasing fixing and the upper layer being a further metallic binder phase with a thickness of from 40 to 60% of the mean diameter of the particles.

Abstract: The object of the invention is to provide an optimized development of a processor platform for an integrated circuit. The configuration tool according to the invention for automatic generation of at least one software file and/or at least one hardware file for a special processor platform for an integrated circuit, in particular an ASIC or a system-on-chip, where the processor platform has at least one processor and at least one module connected together via a bus, contains at least one selectable parameter for at least one processor and at least one module and generates the at least one software file and/or the at least one hardware file as a function of the selected parameters.

Abstract: The invention concerns an apparatus for supporting blades of axial-flow machines, in particular turbojet propulsion units, which is distinguished by at least one pair of mutually oppositely disposed support rings (12, 14) which are supported adjustably relative to each other for assembly between guide or rotor blades of adjacent compressor or turbine stages.

Abstract: A process for photocatalytic removal of organic substances from waste waters, wherein by way of photocatalyst use is made of granulates based on pyrogenically prepared titanium dioxide having the following physicochemical characteristic data: Mean grain diameter: 10 to 150 &mgr;m BET surface: 25 to 100 m2/g pH value: 3 to 6 Compacted bulk density: 100 to 1,200 g/l.

Abstract: It is the object of the invention to propose a method for open-end rotor spinning, wherein the formation of cover yarn, in particular the so-called “belly bands”, is at least appreciably reduced.

Abstract: Surface-modified, doped, pyrogenically produced oxides surface-modified with one or several compounds from the following groups:

Abstract: The invention relates to a process for producing a clothing wire which is suitable for fitting to an opening-cylinder base body, wherein a raw wire which is customarily used to produce clothing wire is processed on end to form a wire coil, in which the teeth of the wire are perpendicular to the coil axis and which has a diameter which corresponds to the diameter of the opening-cylinder base body or differs by at most ±5% from the diameter of the opening-cylinder base body, and the wire coil is pushed loosely onto a support device and, together with this device, is introduced into an electroplating unit, the process steps which are customarily used for the chemical deburring of a raw wire and the nickel-diamond coating of a clothed opening cylinder taking place in the electroplating unit, and the clothing wire being removed from the electroplating unit.

Abstract: Partitions are provided, in particular for exhibition or show stands. These partitions can be assembled from a plurality of inherently rigid wall elements, which are each essentially formed from a frame and at least two panel plates covering the frame on the outside. The individual wall elements are releasably connectable to one another by coupling members. Each coupling member is essentially constructed from three partial elements, namely two frame connections (7, 49) and a connecting element (8, 46). The two frame connections are arranged in each case in the region of the outside of the vertical frame limbs (6) of two wall elements which are to be connected. The frame connections (7, 49) and the connecting element (8, 46) can engage behind one another in a clamping fashion. In this manner, individual wall elements can be removed from an already assembled partition by the controlled removal of individual connecting elements.

Abstract: Granules based on titanium dioxide with the characteristics: Average particle diameter: 10 to 150 &mgr;m BET surface area: 25 to 100 m2/g pH: 3 to 6 Compacted density: 400 to 1,200 g/l The granules are prepared by dispersing titanium dioxide in water, spray-drying and silanizing. In the silanized form, the granules have the following characteristics: Average particle diameter: 10 to 160 &mgr;m BET surface area: 15 to 100 m2/g pH: 3.0 to 9.0 Compacted density: 400 to 1,200 g/l Carbon content: 0.3 to 12.0 wt. % The granules are used, inter alia, as catalyst supports, in cosmetics, as sun screens, in silicone rubber, in toning powder, in lacquers and colorants, as grinding and polishing agents and as a raw material for producing glass and ceramics.

Abstract: Radiation-curing coating systems which contain a silanized silica, where the silane is hexamethyldisilazane, 3-methacryloxypropyltrialkoxysilane and/or glycidyloxypropyltrialkoxysilane as the silanizing agent. The radiation-curing coating systems can be used for coating derived timber boards, solid wood, wood veneers, parquet, decorative papers, decorative films, thermoplastics and thermosetting plastics, mineral and polymeric glasses, metals (for example aluminium, high-grade steel, phosphated, chromated and galvanized steel sheets, copper), lacquered surfaces, printing inks and leather.

Abstract: Functionalized, structurally modified silicas with 3-methacryloxypropylsilyl and/or glycidyloxypropylsilyl groups on the surface are prepared by mixing the silicas with the silane and heat-treating, destructuring and grinding the mixture. The silicas are employed in radiation-curing coatings.