VLIESSTOFF MIT EBENER OBERFLAECHE, INSBESONDERE ALS TRAEGERMATERIAL FUER EINE SEMIPERMEABLE MEMBRAN

摘要

A nonwoven fabric having a smooth surface, especially for use as support material for semipermeable membranes, comprising a support mat into which at least one surface thereof, an open-structured, continuous covering layer of fine, thermoplastic particles is calendered.