| 摘要 |
Finely granular or fibrous solid active-compound particles (1) are immobilised in the form of a sheet-like, flexible sandwich structure. The active compounds are used for treating a liquid or gaseous medium which circulates between the sandwich structure and its environment. The treatment comprises, inter alia, the sorption of substances, followed, if required, by desorption for the purpose of regenerating the active compounds, the emission of substances, ion exchange and catalysis of chemical reactions. The active-compound particles (1) are enclosed between a substrate layer (2, 3) and a fibre-containing covering layer (4), and the two layers are held together by means of retaining fibres (6) which are densely distributed over the whole area and are anchored simultaneously in both layers, the active-compound particles (1) thus being immobilised at the same time. <IMAGE> |
