| abstract |
The present invention relates to a process for producing a thin porous film from a crosslinkable silicone composition (S), in which a silicone composition (S), a pore-former (P) and, if appropriate, a solvent Form a mixture; In a second step, introducing such a mixture into a mold, vulcanizing the silicone composition (S) and removing any solvent (L) present to form a crosslinked film with pores; Removing the pore-forming agent (P) from the crosslinked membrane in a third step; In the fourth step, the pores of this membrane are opened by stretching. The invention also relates to membranes prepared in this way, and to the use thereof for the separation of mixtures, as a packaging material, and as a textile film, in a bandage. |