FR2432329A1 - MEMBRANE COMPRISING A POROUS SURFACE USED AS A MEMBRANE FILTER OR SUPPORT FOR SEPARATION, METHOD FOR ITS PREPARATION AND ITS USE IN THE FIELD OF MICROFILTRATION - Google Patents

MEMBRANE COMPRISING A POROUS SURFACE USED AS A MEMBRANE FILTER OR SUPPORT FOR SEPARATION, METHOD FOR ITS PREPARATION AND ITS USE IN THE FIELD OF MICROFILTRATION

Info

Publication number
FR2432329A1
FR2432329A1 FR7919613A FR7919613A FR2432329A1 FR 2432329 A1 FR2432329 A1 FR 2432329A1 FR 7919613 A FR7919613 A FR 7919613A FR 7919613 A FR7919613 A FR 7919613A FR 2432329 A1 FR2432329 A1 FR 2432329A1
Authority
FR
France
Prior art keywords
membrane
microfiltration
sheets
temperature
separation
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.)
Granted
Application number
FR7919613A
Other languages
French (fr)
Other versions
FR2432329B1 (en
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.)
Akzo NV
Original Assignee
Akzo NV
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
Priority claimed from DE2833493A external-priority patent/DE2833493C2/en
Priority claimed from DE19782833623 external-priority patent/DE2833623A1/en
Application filed by Akzo NV filed Critical Akzo NV
Publication of FR2432329A1 publication Critical patent/FR2432329A1/en
Application granted granted Critical
Publication of FR2432329B1 publication Critical patent/FR2432329B1/fr
Granted legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • 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
    • B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
    • 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
    • B01D69/08—Hollow fibre membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B29C67/205—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising surface fusion, and bonding of particles to form voids, e.g. sintering
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0542—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition
    • C08J2201/0543—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being organic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0545—Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition
    • C08J2201/0546—Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition the non-solvent being organic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Materials Engineering (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Artificial Filaments (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

On prépare les membranes de l'invention se présentant sous forme de feuilles planes, de feuilles extrudées en gaine ou de fils creux en extrudant un mélange homogène provenant de 8, constitué par un polymère fusible provenant de 5 par un liquide inerte provenant de 1, les deux constituants formant un système binaire, qui présente à l'état physique liquide un domaine de miscibilité totale et un domaine de non-miscibilité, à une température supérieure à la température de démixtion, dans un bain 15 contenant le liquide inerte et dont la température est inférieure à la température de démixtion. Il est possible d'extraire les feuilles par lavage. On peut disposer une colonne d'air entre l'appareil d'extrusion et le bain. Les feuilles sont particulièrement appropriées à la microfiltration, en tant que supports de membrane, en tant que substrats ayant une action de longue durée et en tant qu'agents d'oxygénation.The membranes of the invention are prepared in the form of flat sheets, of sheets extruded in a sheath or of hollow threads by extruding a homogeneous mixture from 8, consisting of a meltable polymer from 5 with an inert liquid from 1, the two constituents forming a binary system, which in the liquid physical state has a range of total miscibility and a range of immiscibility, at a temperature above the demixing temperature, in a bath containing the inert liquid and whose temperature is lower than the demixing temperature. It is possible to extract the leaves by washing. An air column can be placed between the extrusion apparatus and the bath. The sheets are particularly suitable for microfiltration, as membrane supports, as substrates with long-lasting action and as oxygenating agents.

FR7919613A 1978-07-31 1979-07-30 MEMBRANE COMPRISING A POROUS SURFACE USED AS A MEMBRANE FILTER OR SUPPORT FOR SEPARATION, METHOD FOR ITS PREPARATION AND ITS USE IN THE FIELD OF MICROFILTRATION Granted FR2432329A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2833493A DE2833493C2 (en) 1978-07-31 1978-07-31 Hollow filaments
DE19782833623 DE2833623A1 (en) 1978-07-31 1978-07-31 Polypropylene membranes with porous surface - are used for filters, microfilters, membrane supports and as oxygenation agents

Publications (2)

Publication Number Publication Date
FR2432329A1 true FR2432329A1 (en) 1980-02-29
FR2432329B1 FR2432329B1 (en) 1984-01-27

Family

ID=25775227

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7919613A Granted FR2432329A1 (en) 1978-07-31 1979-07-30 MEMBRANE COMPRISING A POROUS SURFACE USED AS A MEMBRANE FILTER OR SUPPORT FOR SEPARATION, METHOD FOR ITS PREPARATION AND ITS USE IN THE FIELD OF MICROFILTRATION

Country Status (14)

Country Link
AU (1) AU531433B2 (en)
BR (1) BR7904888A (en)
CA (1) CA1140308A (en)
CH (1) CH644789A5 (en)
DK (1) DK152439C (en)
ES (1) ES8101135A1 (en)
FI (1) FI70733C (en)
FR (1) FR2432329A1 (en)
GB (1) GB2026381B (en)
IT (1) IT1118157B (en)
LU (1) LU81555A1 (en)
NL (1) NL189969C (en)
NO (1) NO153879C (en)
SE (1) SE7906441L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2451952A2 (en) * 1979-03-17 1980-10-17 Akzo Nv POROUS HOLLOW FILAMENTS OF SYNTHETIC POLYMERS AND THEIR USE IN HEAT TRANSMISSION DEVICES
FR2497143A1 (en) * 1980-12-31 1982-07-02 Akzo Nv METHOD AND DEVICE FOR MANUFACTURING POROUS PIPES

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56159128A (en) * 1980-05-15 1981-12-08 Asahi Chem Ind Co Ltd Thermoplastic resin porous film and production thereof
AU540708B2 (en) * 1982-01-25 1984-11-29 Mitsubishi Rayon Company Limited Water purifying method and system
DE3205289C2 (en) * 1982-02-15 1984-10-31 Akzo Gmbh, 5600 Wuppertal Process for the production of porous bodies with adjustable total pore volume, adjustable pore size and adjustable pore wall
US4539256A (en) * 1982-09-09 1985-09-03 Minnesota Mining And Manufacturing Co. Microporous sheet material, method of making and articles made therewith
CA1226112A (en) * 1982-09-09 1987-09-01 Minnesota Mining And Manufacturing Company Microporous sheet material, method of making and articles made therewith
ZA837304B (en) * 1982-09-30 1985-05-29 Extracorporeal Med Spec Semipermeable membranes and method of making the same
EP0110580A3 (en) * 1982-11-03 1986-06-11 Gelman Sciences, Inc. Improved process for removing pyrogens utilizing a hydrophobic microporous membrane
DE3301268A1 (en) * 1983-01-17 1984-07-26 Akzo Gmbh, 5600 Wuppertal METHOD AND DEVICE FOR PRODUCING HOLLOW BANDS
DE3481817D1 (en) * 1983-07-30 1990-05-10 Akzo Gmbh POROUS MOLDED BODIES.
JPS6190705A (en) * 1984-10-09 1986-05-08 Terumo Corp Hollow yarn membrane and its production
US4778601A (en) * 1984-10-09 1988-10-18 Millipore Corporation Microporous membranes of ultrahigh molecular weight polyethylene
EP0193318B1 (en) * 1985-02-25 1990-12-19 Tonen Corporation Microporous membrane of ultra-high molecular weight alpha-olefin polymer
JPH0775622B2 (en) * 1985-07-16 1995-08-16 テルモ株式会社 Hollow fiber membrane for artificial lung, method for producing the same, and artificial lung using the hollow fiber membrane
US4609584A (en) * 1985-09-19 1986-09-02 Minnesota Mining And Manufacturing Company Absorptive devices
US4726989A (en) * 1986-12-11 1988-02-23 Minnesota Mining And Manufacturing Microporous materials incorporating a nucleating agent and methods for making same
US4867881A (en) * 1987-09-14 1989-09-19 Minnesota Minning And Manufacturing Company Orientied microporous film
JP2981752B2 (en) * 1988-11-10 1999-11-22 メンティック・リミテッド Method for producing polymer porous hollow fiber and apparatus used therefor
JPH1092444A (en) 1996-09-13 1998-04-10 Japan Gore Tex Inc Solid high molecular electrolyte complex for electrochemical reaction device and electrochemical reaction device using it
US6277104B1 (en) 1997-08-25 2001-08-21 Mcneil-Ppc, Inc. Air permeable, liquid impermeable barrier structures and products made therefrom
US6635384B2 (en) 1998-03-06 2003-10-21 Gore Enterprise Holdings, Inc. Solid electrolyte composite for electrochemical reaction apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2451952A2 (en) * 1979-03-17 1980-10-17 Akzo Nv POROUS HOLLOW FILAMENTS OF SYNTHETIC POLYMERS AND THEIR USE IN HEAT TRANSMISSION DEVICES
FR2497143A1 (en) * 1980-12-31 1982-07-02 Akzo Nv METHOD AND DEVICE FOR MANUFACTURING POROUS PIPES

Also Published As

Publication number Publication date
AU4932879A (en) 1980-02-07
CH644789A5 (en) 1984-08-31
NO153879C (en) 1986-06-11
ES482967A0 (en) 1980-12-01
IT1118157B (en) 1986-02-24
GB2026381A (en) 1980-02-06
FR2432329B1 (en) 1984-01-27
NL189969B (en) 1993-04-16
DK314779A (en) 1980-02-01
FI70733B (en) 1986-06-26
BR7904888A (en) 1980-04-22
FI70733C (en) 1986-10-06
IT7949805A0 (en) 1979-07-19
NL7905816A (en) 1980-02-04
NO153879B (en) 1986-03-03
AU531433B2 (en) 1983-08-25
GB2026381B (en) 1982-08-18
SE7906441L (en) 1980-02-01
NO792308L (en) 1980-02-01
FI792365A (en) 1980-02-01
NL189969C (en) 1993-09-16
DK152439C (en) 1988-09-12
DK152439B (en) 1988-02-29
ES8101135A1 (en) 1980-12-01
LU81555A1 (en) 1979-10-31
CA1140308A (en) 1983-02-01

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