公开(公告)号：US10441925B2

公开(公告)日：2019-10-15

申请号：US15502896

申请日：2015-07-30

Applicant: BASF SE

Inventor： Martin Weber ,  Nicole Janssen ,  Hartwig Voss ,  Jacek Malisz ,  Martin Heijnen ,  Edoardo Menozzi

IPC: B01D71/80 ,  C08G75/23 ,  C08J3/00 ,  C02F1/44 ,  A23L2/74 ,  B01D67/00 ,  B01D71/52 ,  B01D71/68 ,  C02F103/08

Abstract: Process for making a membrane M comprising the following steps: a) preparing a copolymer C, wherein said copolymer C comprises blocks of at least one polyarylene ether A and blocks of polyalkylene oxide PAO, wherein the content of polyethyleneoxide in copolymer C is 30 to 90% by weight and wherein copolymer C is prepared in a solvent L to yield solution S; b) providing a dope solution D comprising at least one polymer P; c) mixing solution S and dope solution D; d) preparing a membrane by bringing the mixture of solution S and dope solution D into contact with at least one coagulating agent.

公开(公告)号：US10569227B2

公开(公告)日：2020-02-25

申请号：US15029568

申请日：2014-10-13

Applicant: BASF SE

Inventor： Edoardo Menozzi ,  Martin Heijnen ,  Martin Weber ,  Nicole Janssen

IPC: B01D65/02 ,  B01D69/02 ,  B01D71/68 ,  C02F1/44 ,  B29K81/00 ,  B29L31/00 ,  B29C48/00 ,  B29C48/88 ,  B01D61/58 ,  B01D67/00 ,  B01D69/04 ,  B01D69/08

Abstract: Polyethers (A), whose main chain essentially consists of repeating units of the formulae (1) and (2) in alternating order, are useful as an additive to a porous polymer membrane, or as the main polymer constituent of a porous polymer membrane, for stabilizing said membrane against detrimental effects of oxidizing agents and/or for improving the stability of a filtration module comprising said membrane against detrimental effects of oxidizing agents.

公开(公告)号：US10906012B2

公开(公告)日：2021-02-02

申请号：US15758641

申请日：2016-09-07

Applicant: BASF SE

Inventor： Oliver Gronwald ,  Martin Weber ,  Frank Rittig ,  Martin Heijnen ,  Henning Urch

IPC: B01D67/00 ,  B01D71/34 ,  B01D71/68 ,  C07C235/06 ,  B01D69/02 ,  B01D61/00 ,  B01D61/02

Abstract: Process for making membranes M comprising the following steps: a) providing a dope solution D comprising at least one polymer P and at least one solvent S, b) adding at least one coagulant C to said dope solution D to coagulate said at least one polymer P from said dope solution D to obtain a membrane M, wherein said at least one solvent S comprises more than 50% by weight of at least one compound according to formula (I) (I), wherein R1 and R2 are independently C1 to C20 alkyl, R3 is selected from H or an aliphatic rest, 20 R4 is selected from H or an aliphatic rest, AO represents at least one alkylene oxide, n is a number from 0 to 100.