Abstract: The present invention relates to a method for producing metal effect pigments based on aluminum platelets which are provided with a metal oxide coating, said method comprising the following steps: (a) providing the aluminum platelets in an organic solvent so as to form a corresponding dispersion and adding at least one metal oxide precursor compound while the metal oxide precursor compound is dissolved, and b) decomposing the metal oxide precursor compound in the organic solvent so as to form the metal oxide coating on the aluminum platelets. The present invention further relates to metal effect pigments that can be obtained by the method according to the invention as well as to the use of the metal effect pigments according to the invention.

Abstract: The invention relates to a preparation process for thin semiconducting inorganic films comprising various metals (Cu/In/Zn/Ga/Sn), selenium and/or sulfur. The process uses molecular precursors comprising metal complexes with oximato ligands. Copper-based chalcopyrites of the I-III-IV2-type are prepared with high purity at low temperatures under ambient conditions. The thin films can be used in photovoltaic panels (solar cells).

Abstract: The invention relates to a printable precursor comprising an organometallic aluminum, gallium, neodymium, ruthenium, magnesium, hafnium, zirconium, indium and/or tin complex or a mixture thereof which contains at least one ligand from the class of the oximates, for electronic components, and to a preparation process. The invention furthermore relates to corresponding printed electronic components, preferably field-effect transistors.

Abstract: The invention relates to a preparation process for thin semiconducting inorganic films comprising various metals (Cu/In/Zn/Ga/Sn), selenium and/or sulfur. The process uses molecular precursors comprising metal complexes with oximato ligands. Copper-based chalcopyrites of the I-III-IV2-type are prepared with high purity at low temperatures under ambient conditions. The thin films can be used in photovoltaic panels (solar cells).

Abstract: The invention relates to a printable precursor comprising an organometallic zinc complex which contains at least one ligand from the class of the oximates and is free from alkali metals and alkaline-earth metals, for electronic components and to a preparation process. The invention furthermore relates to corresponding printed electronic components, preferably field-effect transistors.

Abstract: The invention relates to a printable precursor comprising an organometallic aluminium, gallium, neodymium, ruthenium, magnesium, hafnium, zirconium, indium and/or tin complex or a mixture thereof which contains at least one ligand from the class of the oximates, for electronic components, and to a preparation process. The invention furthermore relates to corresponding printed electronic components, preferably field-effect transistors.

Abstract: The invention relates to a printable precursor comprising an organometallic zinc complex which contains at least one ligand from the class of the oximates and is free from alkali metals and alkaline-earth metals, for electronic components and to a preparation process. The invention furthermore relates to corresponding printed electronic components, preferably field-effect transistors.

Abstract: The invention provides method and apparatus for transporting tone signalling information through a GCME link in a GSM network supporting TFO and speech compression modes for the passage of signals through the link, respectively using TFO frames and TRAU-like In a data stream to the local entrance to the GCME link, a tone signal to be transported is detected. The detected tone signal is coded into bits of a TFO or TRAU-like frame for sending through the GCME link, including setting bits to mark the frame as a containing tone signalling information and setting bits to identify the detected tone signal, whereby the tone signalling information is transported in-band through the GCME link as a marked TFO or TRAU-like frame. At the remote exit from the GCME link, the marked frame is detected and the tone signal regenerated in dependence upon the bits of the marked frame.

Abstract: The invention provides method and apparatus for transporting tone signalling information through a GCME link in a GSM network supporting TFO and speech compression modes for the passage of signals through the link, respectively using TFO frames and TRAU-like In a data stream to the local entrance to the GCME link, a tone signal to be transported is detected. The detected tone signal is coded into bits of a TFO or TRAU-like frame for sending through the GCME link, including setting bits to mark the frame as a containing tone signalling information and setting bits to identify the detected tone signal, whereby the tone signalling information is transported in-band through the GCME link as a marked TFO or TRAU-like frame. At the remote exit from the GCME link, the marked frame is detected and the tone signal regenerated in dependence upon the bits of the marked frame.

Abstract: A method of forming an optical coupling device having plug pins received in a sleeve with one of the plug pins supporting a single waveguide and the other plug pin supporting a bundle of optical waveguides, characterized by providing the waveguides, etching the waveguides to form an end zone of a thin thickness connecting by a tapering transition zone having increasing thickness to the original cladding thickness of the optical waveguides, assembling the waveguides in an optical bundle with the end zones being arranged with the smallest spacing therebetween. Preferably, each of the plug pins has a bore with a small portion adjacent the end of the pin which corresponds to the diameter of the end zones of the bundle of waveguides.

Abstract: During the continuous casting of preforms of large cross-section, considerable problems occur in the straightening region, because due to straightening, deformations are caused in the billet which has not yet solidified at the core. Therefore, in addition to the upper and lower straightening rollers additional lateral support rollers are provided, so that the billet is supported on all sides. For the purpose of space-saving incorporation in a multi-billet installation, the support rollers are mounted in swinging frames, which are moved by vertically raised cylinders. In order that the support rollers can be adapted to different billet dimensions, they are received within the fork-like swinging frames by vertically movable guide frames with roller supports inserted therein and able to be adjusted horizontally. Springs inserted in the swinging frames exert a continuous force in a vertical direction against the guide frames.

Abstract: To avoid loss of temperature of a melt contained in casting ladles in a continuous casting operation, an independently rotatable platform adapted to receive a heating device is disposed on a slewing column of a slewing tower for ladles. The heating device is similar to that of an arc melting furnace and comprises a vertically adjustable electrode holder of outrigger configuration whose guide column is arranged eccentrically on the platform so that a current carrying cable can be installed to extend centrally through the platform and through the slewing column. The cables are secured by a clamping plate at a perpendicular distance from the platform, such that the electrode holder, as seen from the casting position, can pivot in both pivoting directions through approximately 180.degree., without the cable tearing as a result of twisting.

Abstract: A transport device for rapidly changing ladles for the continuous supply of metal melt to continuous casting plants by means of a reciprocating ladle bogie which is provided with means for receiving a sintle ladle. The bogie is moved between an operative position and an inoperative position, the bogie is positioned above a support from which an emptied casting ladle can be removed. In the operative position, the bogie is positioned above a casting station for supplying metal melt. The ladle bogie is open on the side nearest to the support and is rapidly driven back and forth between the inoperative and operative positions to provide a filled ladle from a crane and thereafter move an empty ladle to the support stand-by position for removal by the crane.

Abstract: A method for rolling out a slab, preferably a slab produced by continuous casting, to form a billet having a square cross section, in which the width of the slab is reduced by repeated powerful edging passes, a temperature drop starting from the central region of the slab being provided during rolling, for example by spraying the edge regions of the slab with coolant, in order to give the edge regions greater deformation resistance and thus to prevent bulges at the edge regions. The bulge occurring in the central region of the slab is rolled away by guide rollers located at right-angles to the edging rolls. A rolling mill with suitable heating means is also provided.

Abstract: In a continuous casting apparatus for slabs, the driven guide rollers of two closely adjacent casting guide tracks are driven from the outside of one and the same guide track so that the outside of the other guide track is free of driving motors, and at least a third guide track can be added thereto while maintaining the smallest possible width of the whole apparatus in order to deliver melt from a single distributor groove to the moulds of the individual guide tracks.