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1. WO2020003216 - UV-GRAFTING PROCESS FOR POLYMERIC FLAT-SHEET MEMBRANES

Publication Number WO/2020/003216
Publication Date 02.01.2020
International Application No. PCT/IB2019/055478
International Filing Date 27.06.2019
IPC
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
67
Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
69
Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
02
characterised by their properties
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
69
Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
06
Flat membranes
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
71
Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06
Organic material
66
Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
68
Polysulfones; Polyethersulfones
B01D 67/00 (2006.01)
B01D 69/02 (2006.01)
B01D 69/06 (2006.01)
B01D 71/68 (2006.01)
CPC
B01D 2323/02
B01D 2323/30
B01D 2323/345
B01D 2323/385
B01D 2325/36
B01D 67/0093
Applicants
  • 3M INNOVATIVE PROPERTIES COMPANY [US/US]; 3M Center Post Office Box 33427 Saint Paul, Minnesota 55133-3427, US
Inventors
  • ANSORGE, Wolfgang; DE
  • MATZEIT, Niklas M.; DE
  • FROST, Sven; DE
  • LEISMANN, Ingmar; DE
Agents
  • BAUM, Scott A.,; US
  • FLORCZAK, Yen Tong,; US
  • BLANK, Colene H.,; US
  • HARTS, Dean M. ,; US
  • LEVINSON, Eric D.,; US
  • MAKI, Eloise J.,; US
  • NOWAK, Sandra K.,; US
  • RINGSRED, Ted K.,; US
Priority Data
18181039.129.06.2018EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) UV-GRAFTING PROCESS FOR POLYMERIC FLAT-SHEET MEMBRANES
(FR) PROCÉDÉ DE GREFFAGE PAR UV POUR MEMBRANES POLYMÈRES PLATES EN FEUILLE
Abstract
(EN)
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.
(FR)
La présente invention concerne une membrane polymère possédant une première surface et une seconde surface et une paroi s'étendant entre les première et seconde surfaces, la membrane comprenant des pores sur les première et seconde surfaces et à travers la paroi, la membrane comprenant une surface modifiée, la surface modifiée comprenant des polymères et/ou des copolymères d'acrylate et/ou de méthacrylate, et la surface modifiée s'étendant au moins sur la première et/ou la seconde surface, et sur les pores d'au moins 50 % de l'épaisseur de la paroi. En outre, la présente invention concerne un procédé de production d'une telle membrane ainsi qu'une utilisation des membranes selon l'invention pour la purification de milieux aqueux, par exemple dans des applications biopharmaceutiques.
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