Kombination von Lösungsmitteln auf Pyrrolidonbasis zur Herstellung von Porösen Membranen

Details

Veröffentlichungs-Nr.

EP3756753

Aktenzeichen

EP19182866

Anmeldetag

27. Juni 2019

Veröffentlichung

31. August 2022

Erteilung

31. August 2022

Rechtsraum

EP

IPC

B01D67/00B01D69/02B01D71/68

Abstract

The present invention relates to a method for producing a porous membrane, the method being characterized in that a solvent system comprising 2-pyrrolidone and N-alkyl-2-pyrrolidone is used, wherein the content ratio of 2-pyrrolidone to N-alkyl-2-pyrrolidone in the solvent system is from 90% : 10% to 10% : 90%, based on mass%, and wherein N-alkyl-2-pyrrolidone is N-propyl-2-pyrrolidone and/or N-butyl-2-pyrrolidone. Furthermore, the present invention relates to a porous membrane obtainable by said method. Moreover, the present invention relates to the use of a specific solvent system for the production of a porous membrane.

Anmelder

Firma

Sartorius Stedim Biotech GmbH

Land

🇩🇪 Deutschland

Fachgebiete