The present invention relates to a permselective separation membrane that can be used in blood purifying treatment. More particularly, the present invention relates to a polysulfone-based permselective separation membrane which has well-balanced separation properties, highly stable safety and performance,...http://www.google.fr/patents/US7922007?utm_source=gb-gplus-shareBrevet US7922007 - Separation membrane with selective permeability and process for producing the same
Separation membrane with selective permeability and process for producing ...