Abstract: A thermoplastic moulding composition has improved weathering resistance. A process for producing the thermoplastic moulding composition involves providing a thermoplastic polymer and adding at least one colouring preparation. Injection moulded parts and extruded parts can be composed of the thermoplastic moulding composition.

Abstract: A process can be used for manufacturing a coloured moulding composition with an improved optical appearance and a particularly high thermal stability. The process involves providing a thermoplastic polymer and adding a colouring preparation, or a liquid composition or a master batch containing the colouring preparation. Injection moulded parts and extruded parts can be composed of the coloured moulding composition.

Abstract: An opaque lightly coloured thermoplastic moulding composition is made having improved long-term weathering stability as well as excellent optical appearance, especially high colour brilliance. The thermoplastic moulding compositions include the combination of an inorganic pigment and an organic soluble dye, wherein the inorganic pigment is selected from specific mixed metal oxides and mixed metal oxosulfides. A process is also made to produce the coloured moulding composition. Colouring compositions, such as masterbatches, which can be used for producing the coloured thermoplastic moulding composition are further developed. Opaque lightly coloured formed articles are finally made from the thermoplastic moulding composition, for example injection moulded articles and extruded articles.

Abstract: A thermoplastic moulding composition has improved weathering resistance. A process for producing the thermoplastic moulding composition involves providing a thermoplastic polymer and adding at least one colouring preparation. Injection moulded parts and extruded parts can be composed of the thermoplastic moulding composition.

Abstract: A process can be used for manufacturing a coloured moulding composition with an improved optical appearance and a particularly high thermal stability. The process involves providing a thermoplastic polymer and adding a colouring preparation, or a liquid composition or a master batch containing the colouring preparation. Injection moulded parts and extruded parts can be composed of the coloured moulding composition.

Abstract: Light scattering polymeric compositions have improved scattering efficiency and improved mechanical properties. The compositions include a polymeric matrix material and at least two different kinds of scattering particles uniformly dispersed therein.

Abstract: Light scattering polymeric compositions have improved scattering efficiency and improved mechanical properties. The compositions include a polymeric matrix material and at least two different kinds of scattering particles uniformly dispersed therein.

Abstract: The invention relates to an aqueous colorant preparation for coloring thermoplastic plastics.

Abstract: The invention relates to an aqueous colorant preparation for coloring thermoplastic plastics.

Abstract: The invention relates to a method for coloring thermoplastic molding compounds, preferably a polymethyl(meth)acrylate molding compound, using novel aqueous colorant preparations. The invention further relates to a novel water-based colorant preparation.

Abstract: The invention relates to the use of a) at least one (poly)alkyl(meth)acrylate and b) at least one compound according to formula (I), wherein the radicals R1 and R2 independently represent an alkyl or cycloalkyl radical having 1 to 20 carbon atoms, for producing solar cell modules, in particular for producing light concentrators for solar cell modules.

Abstract: The invention relates to subduedly colored (brown, gray, black, green), infrared reflecting PMMA compounds which can be applied to other plastic compounds as an IR barrier layer.

Abstract: The invention relates to subduedly colored (brown, gray, black, green), infrared reflecting PMMA compounds which can be applied to other plastic compounds as an IR barrier layer

Abstract: The invention relates to the use of a) at least one polyalkyl(meth)acrylate and b) at least one compound according to formula (I), where the groups R1 and R2 independently represent an alkyl or cycloalkyl group with 1 to 20 carbon atoms, for the production of solar cell modules, particularly for the production of light concentrators for solar cell modules.

Abstract: Moulding composition, encompassing a) at least one polyalkyl (meth)acrylate, and b) at least one compound according to formula (I) in which the moieties R1 and R2 are independently an alkyl or cycloalkyl moiety having from 1 to 20 carbon atoms, where the moulding composition further comprises c) at least one infrared absorber, where the transmittance of the moulding composition at 500 nm is smaller than 89%, at 1000 nm is smaller than 80%, at 1150 nm is smaller than 70% and at 1600 nm is smaller than 77%, in each case measured by means of infrared spectroscopy at 25° C. on 3 mm plaques. The moulding composition is in particular used for the production of solar-cell modules.

Abstract: The invention relates to an aqueous colorant preparation for coloring thermoplastic plastics.

Abstract: The invention relates to subduedly colored (brown, gray, black, green), infrared reflecting PMMA compounds which can be applied to other plastic compounds as an IR barrier layer

Abstract: In a process and an apparatus for detaching a lining of thin composite material from a central region, the detachment operation is effected in a continuous procedure with the composite material in the form of an endless web. The composite material passes as a treatment region successively through an initial dissolution region and a deactivation region, in each of which inter alia moisture is fed to the composite material. The residence times in those regions are controllable independently of each other and at least at the end of those regions a respective operation for the preliminary removal of moisture from the composite material is effected. After the last region the composite material is subjected to a drying operation and the lining is detached from the central material by their being moved away from each other.

Abstract: The invention relates to a process for the continuous determination of the dust content of flowing media with the isokinetic flow sampling with the separation of the dust or aerosols by cake filtration on a filter and the measurement of the pressure drop at the filter to determine its degree of clogging. To this end the time cycle of the quantity of dust separated on the filter is determined by the measurement of the pressure loss at the filter of an isokinetically operating sampling system. To find the dust load, this quantity of dust is related to the partial quantity of gas extracted isokinetically during the period concerned.

Abstract: In a centrifuge device whose purpose is in particular the separation of amalgam from waste water generated in dentist' offices, the following is provided in order to improve the determination of the filling level in a collecting tank downstream from a centrifuge, to obtain better utilization of the container volume, to reduce the residual moisture in the separated solids, and to simultaneously eliminate the repumping means which operate between the collecting tank and the centrifugal. The collecting tank is detachably attached to a centrifuge drum and rotates together with the centrifuge, with measures being taken for separating the clean-water space from the centrifuge drum, there is also provided a transport container which can be detached from the device together with a collecting tank, which container can, when the collecting tank is in it, be closed by means of a cover which, when it is not in use, is detachably attached to the transport container.