Abstract:
Die Erfindung betrifft eine Magnetspannvorrichtung mit einer Spannfläche, wenigstens einem elektromagnetischen Spannmittel zum Aufspannen eines Werkstückes in der Spannfläche und einer Zentriervorrichtung zum Zentrieren des Werkstückes, wobei die Zentriervorrichtung wenigstens eine in der Spannfläche verschiebbare Grundspannbacke aufweist, wobei der wenigstens einen Grundspannbacke eine bezüglich der Spannfläche in eine abgesenkte oder angehobene Position bewegbare Spannbacke zugeordnet ist sowie ein Verfahren zum Zentrieren eines Werkstückes.
Abstract:
The invention relates to a process for reclaiming methacrylic acid from a high- boiler phase in a heterogeneously catalysed gas phase oxidation of a C4- compound to methacrylic acid comprising the following steps a) Providing a high-boiler phase from a heterogeneously catalysed gas phase oxidation of a C4-compound to methacrylic acid b) Providing an aqueous phase, preferably organically loaded, from a heterogeneously catalysed gas phase oxidation of a C4-compound to methacrylic acid c) Mixing of components a) and b) optionally followed by filtration or centrifugation d) Adding an extraction media to the mixture from c) e) Subjecting the multiple-phase mixture from d) to at least one mixer-settler extraction process f) Recycling the organic phase from the last mixler-settler process back into the C4-process.
Abstract:
The present invention relates to a method for producing light guide bodies and to the use thereof in lighting units, for example, for liquid crystal display screens or monitors. The present invention in particular relates to a method for producing light guide bodies that have a thickness of no more than 1 mm and contain at least 80 weight percent polymethyl methacrylate and no light-scattering components. In the method, the polymer material is produced as a thin plate or film by a mixing apparatus (1), a flat film die (2) and a die lip (3) that is adapted to the outer circumference of the smoothing rollers. The distance of the smoothing rollers and the die lip can be optically controlled.
Abstract:
The present invention relates to a method for producing light guide bodies and to the use thereof in lighting units, for example, for liquid crystal display screens or monitors. The present invention in particular relates to a method for producing light guide bodies that have a thickness of no more than 1 mm and contain at least 80 weight percent polymethyl methacrylate and no light-scattering components. In the method, the polymer material is produced as a thin plate or film by a mixing apparatus (1), a flat film die (2) and a die lip (3) that is adapted to the outer circumference of the smoothing rollers. The distance of the smoothing rollers and the die lip can be optically controlled.
Abstract:
The invention relates to a panel (1) for cladding walls (8), in particular a facade panel. The problem addressed by the invention is to provide a panel which is suitable for energy-efficient modernization of buildings, can be easily worked by the various skilled trades, is permanently weatherproof and achieves a significant insulating effect. This problem is solved by a panel with a rigid facing layer (2) to be arranged on the visible side and with an insulating layer (3) connected to the facing layer (2) on the wall side, wherein the facing layer (2) and insulating layer (3) are designed to be substantially equal in area but are arranged with a relative offset in the plane (E) of the interface thereof so as to form a tongue (5) and a groove (4), and wherein the facing layer (2) is composed of a solid plastic and the insulating layer (3) is composed of a foamed plastic.
Abstract:
The invention relates to a façade panel for creating an energy generation system. Said façade panel comprises at least one insulation layer and at least one gas conducting layer and contains plastic. The invention further describes a system and a method for generating energy.
Abstract:
The invention relates to a device (100) and method for producing bodies by polymerizing ethylenically unsaturated monomers and/or (pre)polymers (S). The device (100) comprises a first outer tank (110) having a first tank bottom (111) comprising a top side (112) which faces the inside of the first tank (110), and having a first side wall (114), wherein the side wall (114) and bottom (111) of the first tank (110) define the cavity of the first tank (110); and a second inner tank (120) having a second tank bottom (121) comprising a bottom side (122) which faces the outside of the second tank (120), and a second side wall (124), wherein the second inner tank (120) can be accommodated by the first outer tank, and characterized in that the bottom side of the bottom (123) of the second tank (120), which was accommodated by the first tank (110), and the top side of the bottom (111) of the first tank (110) form a chamber which is filled with liquid monomers and/or (pre)polymers (S) to be polymerized, so that at the start of the polymerization the second tank (120) is supported in a floating manner in the first tank (110) on the monomers and/or (pre)polymers (S). The method comprises using the device as a mold for polymerizing ethylenically unsaturated monomers and/or (pre)polymers (S) such that cast glass is obtained by the water bath method, in an autoclave, or by the air polymerization method.
Abstract:
The invention relates to an additive fabrication method with which colored three-dimensional objects can be produced from a powder matrix, without additional steps for solidification of the material.
Abstract:
The present invention refers to a solid dosage form comprising an inner coating located between a core containing a pharmaceutically active ingredient and an outer enteric coating; wherein said inner coating comprises a partially neutralized anionic polymeric material, and at least a carboxylic acid having 2 to 16 carbon atoms the salts thereof or mixtures of said acid and its salt; wherein said outer coating comprises an anionic polymeric material which is less or not at all neutralized than the material of the inner coating.
Abstract:
The invention relates to pellets having a mean particle size of between 300 and 1100 µm, containing a pharmaceutically active substance integrated into a polymer matrix consisting of at least one water-insoluble polymer. The invention is characterised in that the polymer matrix also contains between 10 and 90 wt. % of an anionic polymer, in the release test according to USP, provided that the pellets release no more than 10 % of the active substance in the artificial gastric juice at a pH of 1.2 after 120 min, and release at least 50 % of the active substance after a total of another 300 min at a pH of 6.8 and/or 7.5.