Schwarz, H.H.H.H.SchwarzRichau, K.K.RichauPaul, D.D.PaulBehnisch, J.J.BehnischZimmermann, H.H.Zimmermann2022-03-082022-03-081998https://publica.fraunhofer.de/handle/publica/304079The proposal relates to a process for the production for substance separating diaphragms working according to the principle of pervaporation and/or gas separation, by which firstly a layer of active separating polymer is applied to a base which is at least microporous. Following this, the polymer layer is treated in a plasma gas.de608668patent1993-4343114