Polyetherester membrane pigmented with carbon particles, water vapour-permeable and waterproof

摘要

Water vapour-permeable, waterproof polyether-ester (PEE) membrane (I), containing 1-10 wt.% finely dispersed carbon with an average particle size of 5-40 nm (II). Also claimed is a process for the production of membrane (I). Preferably, the membrane contains 2-5 wt.% (II) in the form of carbon black with a particle size of 15-25 nm. The membrane has a thickness of 5-30 (preferably 5-10) microns.