AU2435100A - Membrane and its use - Google Patents

Membrane and its use

Info

Publication number
AU2435100A
AU2435100A AU24351/00A AU2435100A AU2435100A AU 2435100 A AU2435100 A AU 2435100A AU 24351/00 A AU24351/00 A AU 24351/00A AU 2435100 A AU2435100 A AU 2435100A AU 2435100 A AU2435100 A AU 2435100A
Authority
AU
Australia
Prior art keywords
polymer
gas
membrane
shaping
expanding
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU24351/00A
Inventor
Bernd Krause
Heiner Strathmann
Matthias Wessling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Twente Universiteit
Original Assignee
Twente Universiteit
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 Twente Universiteit filed Critical Twente Universiteit
Publication of AU2435100A publication Critical patent/AU2435100A/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
    • 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
    • B01D67/002—Organic membrane manufacture from melts
    • 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
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • 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
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/06—Flat membranes
    • 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
    • B01D69/08—Hollow fibre membranes
    • 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
    • B01D71/50—Polycarbonates
    • 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
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/022—Asymmetric membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/022—Asymmetric membranes
    • B01D2325/0231—Dense layers being placed on the outer side of the cross-section

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • External Artificial Organs (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention relates to a membrane that is produced by shaping a polymer or a polymer blend into the desired shape, charging it with a gas at hyperbaric pressure prior or after shaping it, expanding the polymer charged with gas above the glass transition temperature of the polymer/gas mixture and then cooling and stabilizing the expanded structure. The inventive method is characterized in that the polymer charged with gas is expanded with 0.05 to 4.5 wt.- % of a fluid dissolving or expanding the polymer. The inventive membrane is preferably used for medical purposes.
AU24351/00A 1999-02-24 2000-01-05 Membrane and its use Abandoned AU2435100A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19907824A DE19907824A1 (en) 1999-02-24 1999-02-24 Membrane and their use
DE19907824 1999-02-24
PCT/EP2000/000031 WO2000050159A1 (en) 1999-02-24 2000-01-05 Membrane and its use

Publications (1)

Publication Number Publication Date
AU2435100A true AU2435100A (en) 2000-09-14

Family

ID=7898600

Family Applications (1)

Application Number Title Priority Date Filing Date
AU24351/00A Abandoned AU2435100A (en) 1999-02-24 2000-01-05 Membrane and its use

Country Status (9)

Country Link
EP (1) EP1165213B1 (en)
JP (1) JP5011491B2 (en)
KR (1) KR100654718B1 (en)
CN (1) CN1151864C (en)
AT (1) ATE244055T1 (en)
AU (1) AU2435100A (en)
DE (2) DE19907824A1 (en)
ES (1) ES2202047T3 (en)
WO (1) WO2000050159A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10033401A1 (en) * 2000-07-08 2002-01-17 Univ Twente Fakultaet Chemisch Membrane and their use
DE10220038A1 (en) * 2002-05-04 2003-11-20 Membrana Gmbh Process for producing foamed polymer moldings and foamed polymer moldings
ES2323492T3 (en) * 2002-11-30 2009-07-17 Gambro Lundia Ab FOAMED MEMBRANE.
JP4825013B2 (en) * 2006-01-23 2011-11-30 中村建設株式会社 Method for producing flat membrane filter medium for suspended water filter
DE102007019051B3 (en) * 2007-04-23 2008-10-09 Fresenius Medical Care Deutschland Gmbh Hollow fiber capillary membrane and process for its preparation
NL2003250C2 (en) * 2009-07-20 2011-01-24 Metal Membranes Com B V Method for producing a membrane and such membrane.
DE102013223391A1 (en) * 2013-11-15 2015-05-21 Universität Zu Köln Production of porous materials by expansion of polymer gels
CN110898688B (en) * 2019-09-26 2021-10-01 上海稀点新材料科技有限公司 Inorganic flat membrane with nano porous structure and preparation method thereof
EP4382561A1 (en) 2021-08-05 2024-06-12 Jiangsu Damaoniu New Material Technology Co., Ltd. Environment-friendly method for preparing physically foamed material at high efficiency and low cost

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1247636B (en) * 1955-11-29 1967-08-17 Crown Cork & Seal Co Process for the production of cell bodies from polyvinyl chloride plastisols
JPH07330940A (en) * 1994-06-03 1995-12-19 Asahi Chem Ind Co Ltd Thermoplastic resin foam and its preparation
JPH08311230A (en) * 1995-05-18 1996-11-26 Asahi Chem Ind Co Ltd Open-microcellular foam, its production and vacuum heat insulation material made thereof
DE19520188C2 (en) * 1995-06-01 1999-04-08 Geesthacht Gkss Forschung Process for the production of polymer hollow fiber membranes
JPH1025311A (en) * 1995-07-21 1998-01-27 Nof Corp Polymerization initiator for vinyl chloride-based monomer and production of vinyl chloride-based polymer
CN1259878A (en) * 1997-06-11 2000-07-12 陶氏化学公司 Absorbent, extruded thermoplastic foams
JP3574297B2 (en) * 1997-07-11 2004-10-06 鐘淵化学工業株式会社 Method for producing polystyrene resin foam and polystyrene resin foam produced by the method

Also Published As

Publication number Publication date
WO2000050159A1 (en) 2000-08-31
EP1165213B1 (en) 2003-07-02
JP5011491B2 (en) 2012-08-29
DE19907824A1 (en) 2000-08-31
ES2202047T3 (en) 2004-04-01
DE50002729D1 (en) 2003-08-07
ATE244055T1 (en) 2003-07-15
CN1151864C (en) 2004-06-02
EP1165213A1 (en) 2002-01-02
JP2002537082A (en) 2002-11-05
KR100654718B1 (en) 2006-12-07
CN1341039A (en) 2002-03-20
KR20010108241A (en) 2001-12-07

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase