Porous membranes and associated separation modules and methods

Peter Berzinis Albin (Inventor), Joris de Grooth (Inventor), Johannes de Brouwer (Inventor), Miejuan Zhou (Inventor), Pooja Bajaj (Inventor), Rachel Elizabeth Halbfinger (Inventor), Kristi Jean Narang (Inventor)

Research output: Patent

Abstract

A porous membrane is made from a poly(phenylene ether) copolymer containing 10 to 40 mole percent repeat units derived from 2-methyl-6-phenylphenol and 60 to 90 mole percent repeat units derived from 2,6-dimethylphenol; and a block copolymer containing backbone or pendant blocks of poly(C2-4 alkylene oxide). The porous membrane is made by dissolving the poly(phenylene ether) copolymer in a water-miscible polar aprotic solvent to form a membrane-forming composition; and phase-inverting the membrane forming-composition in a first non-solvent composition to form the porous membrane. A method of making a hollow fiber by coextrusion through a spinneret having an annulus and a bore, includes coextruding the membrane-forming composition through the annulus, and a first non-solvent composition through the bore, into a second non-solvent composition to form the hollow fiber.

Original languageEnglish
Patent numberUS2017282128
IPCC08J 9/ 28 A I
Priority date21/11/16
Publication statusPublished - 5 Oct 2017

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  • Cite this

    Berzinis Albin, P., de Grooth, J., de Brouwer, J., Zhou, M., Bajaj, P., Halbfinger, R. E., & Narang, K. J. (2017). IPC No. C08J 9/ 28 A I. Porous membranes and associated separation modules and methods. (Patent No. US2017282128).