| abstract |
The present invention relates to a process for the production of a thin porous film made of a crosslinkable silicone composition (S), characterized in that in the first stage a silicone composition (P) is prepared by using a pore-forming agent (P) in the presence of an emulsifier (E) S, the emulsion is formed in the second stage, and if present, the solvent (L) is evaporated, the emulsion is crosslinked in the third stage, and the pore former (P) is removed. The invention further relates to membrane and mixture separations which can be prepared according to the process, in a band-aid, as a water repellent and breathable layer of the fabric, or as a packaging material. |