US Patent Issued to DWI-LEIBNIZ-INSTITUT FUR INTERAKTIVE MATERIALIEN on Nov. 4 for "Method for producing a polyelectrolyte complex membrane" (German Inventors)

ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,458,928, issued on Nov. 4, was assigned to DWI-LEIBNIZ-INSTITUT FUR INTERAKTIVE MATERIALIEN E.V. (Germany).

"Method for producing a polyelectrolyte complex membrane" was invented by Stephan Emonds (Aachen, Germany), Johannes Kamp (Aachen, Germany) and Matthias Wessling (Aachen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method for producing a polyelectrolyte complex (PEC) membrane having a predetermined porosity via salt dilution induced phase separation, in which a liquid polymer solution (P) containing polyanions (A) and polycations (C) dissolved in an aqueous medium at an overcritical salt concentration i...