Abstract: The present invention relates to a process for working up solutions of polymers in organic solvents contaminated by alkaline constituents, using homogeneously soluble acids, especially by the introduction of an acid gas, and subsequent washing, and to the polymers so obtainable, which are distinguished by the fact that, on treatment with moist heat (sterilisation), only few defects caused by decomposition are formed, to the use thereof in the production of extrudates and molded specimen, and to the extrudates and molded specimen produced from those polymers themselves

Abstract: The invention relates to a system and a method for combined use of different display/appliance types (1 . . . 10) with system-controlled, context-dependent information display, having a mobile data processing apparatus (12) and having a large number of interaction appliances (1 . . . 10), which are operated in parallel on the mobile data processing apparatus (12) for display and/or input, and having a higher-level system for monitoring the interaction appliances (1 . . . 10) in such a manner that at least one respectively suitable output medium (1 . . . 10) is selected as a function of the input parameters.