公开(公告)号：US20230044558A1

公开(公告)日：2023-02-09

申请号：US17788707

申请日：2020-12-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Pierre-Alexandre Bourgeois ,  Sven Frost ,  Frans Audenaert ,  Tom Opstal ,  Uwe Grau

IPC: B01D67/00 ,  B01D71/68 ,  B01D71/32 ,  B01D61/14

Abstract: The present disclosure relates to hydrophilic microporous membranes comprising a modified surface. In addition, the present disclosure relates to a process for producing such hydrophilic membranes by modification of microporous membranes with fluorinated organosilane compounds and electron beam irradiation.

公开(公告)号：US20210245110A1

公开(公告)日：2021-08-12

申请号：US17254139

申请日：2019-06-27

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Wolfgang Ansorge ,  Niklas M. Matzeit ,  Sven Frost ,  Ingmar Leismann

IPC: B01D67/00 ,  C08F283/00 ,  B01D71/68 ,  B01D71/40 ,  B01D69/02 ,  B01D69/06

Abstract: The present disclosure is related to a polymeric membrane having a first surface and a second surface and a wall extending between the first and second surface, the membrane comprising pores on the first and second surfaces and throughout the wall, the membrane comprising a modified surface, the modified surface comprising acrylate and/or methacrylate polymers and/or copolymers, wherein the modified surface extends at least over the first and/or the second surface, and over the pores of at least 50% of the thickness of the wall. Furthermore, the present disclosure provides a method for producing such a membrane as well as a use of the membranes as disclosed herein for purification of aqueous media such as in biopharmaceutical applications.

公开(公告)号：US20240157306A1

公开(公告)日：2024-05-16

申请号：US18280040

申请日：2022-03-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Christian Krumm ,  Ramona Osterloh ,  Pierre-Alexandre Bourgeois ,  Amy S. Determan ,  Sven Frost ,  Manfred Trussner ,  Mathias Stroschke ,  Ki-Joo Sung

IPC: B01D69/08 ,  B01D67/00 ,  B01D69/02 ,  B01D71/58 ,  B01D71/68 ,  C12N7/00

CPC classification number: B01D69/085 ,  B01D67/0016 ,  B01D69/02 ,  B01D69/088 ,  B01D71/58 ,  B01D71/68 ,  C12N7/00 ,  B01D2325/022 ,  B01D2325/02833 ,  C12N2750/14151

Abstract: A hollow-fiber membrane. The hollow-fiber membrane is made from a polymeric blend comprising an aromatic sulfone polymer and polyoxazoline; wherein the hollow-fiber membrane comprises an inner surface facing towards its lumen, an outer surface facing outwards and an intermediate wall having a wall thickness; wherein the hollow-fiber membrane is an integrally asymmetric, permeable hollow-fiber membrane.

公开(公告)号：US20240100486A1

公开(公告)日：2024-03-28

申请号：US17766699

申请日：2020-11-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Sven Frost ,  Pierre-Alexandre Bourgeois ,  Frans A. Audenaert ,  Tim Wolf ,  Tom Opstal

IPC: B01D67/00 ,  B01D69/06 ,  B01D69/08 ,  B01D71/68

CPC classification number: B01D67/0088 ,  B01D67/009 ,  B01D69/06 ,  B01D69/08 ,  B01D71/68 ,  B01D2323/34 ,  B01D2325/36

Abstract: The present disclosure is related to a polymeric membrane, comprising a modified surface obtained from coating with hydrophilic monomers and curing the hydrophilic monomers with electron beam, wherein the hydrophilic monomers comprise at least one amino moiety, at least one polyoxyalkylene unit, and at least one (meth)acrylate moiety.