WO2005082500A3 - Open-pore filtration membrane and method for producing the same - Google Patents

Open-pore filtration membrane and method for producing the same Download PDF

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Publication number
WO2005082500A3
WO2005082500A3 PCT/DE2005/000256 DE2005000256W WO2005082500A3 WO 2005082500 A3 WO2005082500 A3 WO 2005082500A3 DE 2005000256 W DE2005000256 W DE 2005000256W WO 2005082500 A3 WO2005082500 A3 WO 2005082500A3
Authority
WO
WIPO (PCT)
Prior art keywords
polymer
mixture
producing
open
filtration membrane
Prior art date
Application number
PCT/DE2005/000256
Other languages
German (de)
French (fr)
Other versions
WO2005082500A2 (en
Inventor
Christoph Kullmann
Carsten Blicke
Klaus Vossenkaul
Stefan Schaefer
Original Assignee
Koch Membrane Systems Gmbh
Christoph Kullmann
Carsten Blicke
Klaus Vossenkaul
Stefan Schaefer
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koch Membrane Systems Gmbh, Christoph Kullmann, Carsten Blicke, Klaus Vossenkaul, Stefan Schaefer filed Critical Koch Membrane Systems Gmbh
Publication of WO2005082500A2 publication Critical patent/WO2005082500A2/en
Publication of WO2005082500A3 publication Critical patent/WO2005082500A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0011—Casting solutions therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
    • B01D71/68—Polysulfones; Polyethersulfones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/12—Specific ratios of components used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/15—Use of additives
    • B01D2323/18—Pore-control agents or pore formers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/219—Specific solvent system
    • B01D2323/22—Specific non-solvents or non-solvent system

Abstract

The invention relates to an open-pore filtration membrane and to a method for producing the same on the basis of a polymer or a polymer mixture. According to the method, a cast solution, comprising a polyether or an aliphatic, water-soluble compound having at least two ether groups or a mixture of said substances and the polymer or the polymer mixture dissolved therein, and optionally an aprotic polar solvent and/or expanding agent and/or swelling agent, is formed and said solution is precipitated by a precipitation process, especially by immersion into a precipitation bath, by phase inversion. The aim of the invention is to improve the aforementioned method. For this purpose, the cast solution comprises at least 83 %, based on its total weight, of the polymer or the polymer mixture and the polyether or the aliphatic, water-soluble compound having at least two ether groups or the mixture of said substances.
PCT/DE2005/000256 2004-02-26 2005-02-15 Open-pore filtration membrane and method for producing the same WO2005082500A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004009877.8 2004-02-26
DE102004009877A DE102004009877B4 (en) 2004-02-26 2004-02-26 Open-pored filtration membrane and process for its preparation

Publications (2)

Publication Number Publication Date
WO2005082500A2 WO2005082500A2 (en) 2005-09-09
WO2005082500A3 true WO2005082500A3 (en) 2006-03-02

Family

ID=34894897

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2005/000256 WO2005082500A2 (en) 2004-02-26 2005-02-15 Open-pore filtration membrane and method for producing the same

Country Status (2)

Country Link
DE (1) DE102004009877B4 (en)
WO (1) WO2005082500A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150352502A1 (en) * 2012-12-19 2015-12-10 Solvay Sa Method for manufacturing sulfone polymer membrane

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5076935A (en) * 1990-05-31 1991-12-31 Gelman Sciences, Inc. Filtration membranes made from polyethersulfone/phenoxy resin blend
US5108607A (en) * 1987-05-20 1992-04-28 Gelman Sciences, Inc. Filtration membranes and method of making the same
US6056903A (en) * 1999-02-08 2000-05-02 Osmonics, Inc. Preparation of polyethersulfone membranes
US20010003123A1 (en) * 1997-09-18 2001-06-07 Meluch Timothy B. Melt-spun polysulfone semipermeable membranes and methods for making the same
US20030192826A1 (en) * 2002-04-12 2003-10-16 I-Fan Wang Hydrophobic membrane Materials for filter venting applications

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5108607A (en) * 1987-05-20 1992-04-28 Gelman Sciences, Inc. Filtration membranes and method of making the same
US5076935A (en) * 1990-05-31 1991-12-31 Gelman Sciences, Inc. Filtration membranes made from polyethersulfone/phenoxy resin blend
US20010003123A1 (en) * 1997-09-18 2001-06-07 Meluch Timothy B. Melt-spun polysulfone semipermeable membranes and methods for making the same
US6056903A (en) * 1999-02-08 2000-05-02 Osmonics, Inc. Preparation of polyethersulfone membranes
US20030192826A1 (en) * 2002-04-12 2003-10-16 I-Fan Wang Hydrophobic membrane Materials for filter venting applications

Also Published As

Publication number Publication date
WO2005082500A2 (en) 2005-09-09
DE102004009877B4 (en) 2006-05-24
DE102004009877A1 (en) 2005-10-06

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