GB1424046A - Method of fabrication of a porous macromolecular material - Google Patents

Method of fabrication of a porous macromolecular material

Info

Publication number
GB1424046A
GB1424046A GB1695173A GB1695173A GB1424046A GB 1424046 A GB1424046 A GB 1424046A GB 1695173 A GB1695173 A GB 1695173A GB 1695173 A GB1695173 A GB 1695173A GB 1424046 A GB1424046 A GB 1424046A
Authority
GB
United Kingdom
Prior art keywords
porous
grafted
april
membranes
tube
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.)
Expired
Application number
GB1695173A
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB1424046A publication Critical patent/GB1424046A/en
Expired 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
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/0032—Organic membrane manufacture by inducing porosity into non porous precursor membranes by elimination of segments of the precursor, e.g. nucleation-track membranes, lithography or laser methods
    • 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
    • C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out

Abstract

1424046 Dialysis; ultrafiltration COMMISSARIAT A L'ENERGIE ATOMIQUE 9 April 1973 [21 April 1972] 16951/73 Heading B1X [Also in Division C3] An ion-exchange or selective semi-permeable membrane is made of a porous organic polymer which has been subjected to irradiation with heavy nuclear particles, capable of prodE viding at least the initial - (as defined) dX value of the polymer, grafted with an ethylenically unsaturated monomer and made porous by reaction with a base or oxidizer which reacts preferentially with the irradiated damaged material. The membranes may be used in electrodialysis, ultra- or hyper-filtration, renal purification, separation of proteins and desalination of water. The membranes may be formed into a tube. In the examples the porous polymers consisted of (a) films of cellulose triacetate, polycarbonate, polyethylene terephthalate, polyvinyl chloride or polyimides, or a tube of polypropylene were grafted with (b) vinyl-2-pyridine, acrylic acid, acrylonitrile or styrene.
GB1695173A 1972-04-21 1973-04-09 Method of fabrication of a porous macromolecular material Expired GB1424046A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7214293A FR2181215A5 (en) 1972-04-21 1972-04-21

Publications (1)

Publication Number Publication Date
GB1424046A true GB1424046A (en) 1976-02-04

Family

ID=9097341

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1695173A Expired GB1424046A (en) 1972-04-21 1973-04-09 Method of fabrication of a porous macromolecular material

Country Status (7)

Country Link
JP (1) JPS4922497A (en)
CA (1) CA995173A (en)
DE (1) DE2319101A1 (en)
FR (1) FR2181215A5 (en)
GB (1) GB1424046A (en)
IL (1) IL42011A (en)
IT (1) IT980868B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH618612A5 (en) * 1975-12-31 1980-08-15 Berthold Schilling Dialysis membrane, in particular for haemodialysis, and process for production thereof
EP0150288A3 (en) * 1984-01-16 1986-04-16 KMS Fusion, Inc. Hollow microspheres with wall through-openings
FR2597391B1 (en) 1986-03-25 1989-02-24 Univ Catholique Louvain PROCESS FOR PERFORMING PERFORATIONS IN SOLID SHEET MATERIAL, IRRADIATION DEVICE FOR IMPLEMENTING THE PROCESS AND PERFORATED MATERIAL THUS OBTAINED
DE4305979C2 (en) * 1992-03-21 1994-12-08 Schwerionenforsch Gmbh Chemical valve

Also Published As

Publication number Publication date
IL42011A0 (en) 1973-06-29
CA995173A (en) 1976-08-17
DE2319101A1 (en) 1973-10-31
IL42011A (en) 1976-12-31
IT980868B (en) 1974-10-10
FR2181215A5 (en) 1973-11-30
JPS4922497A (en) 1974-02-27

Similar Documents

Publication Publication Date Title
GB1526843A (en) Process for the production of semipermeable membranes
GB1493654A (en) Process for preparing semi-permeable membranes
GB1481228A (en) Process for the production of a semipermeable membrane
ATE91242T1 (en) HIGH FLOW SEMIPERMEABLE MEMBRANES.
JPS5621604A (en) Separation of liquid by semipermeable composite membrane
US3450630A (en) Method of separating metal ions
GB1260208A (en) Swellable polymers
GB1494152A (en) Process for producing porous thermoplastic resin sheet
GB1424046A (en) Method of fabrication of a porous macromolecular material
ATE40952T1 (en) COMPOSITE MATERIAL, PROCESS FOR ITS PRODUCTION AND ITS USE IN OSMOTIC PURIFICATION OF LIQUIDS.
JPS57117302A (en) High anisotropic micro-filter membrane
JPS53146275A (en) Production of selective permeative-membrane of high water permeability
ES8402237A1 (en) Sea water desalination process.
GB1373792A (en) Pretreating electrodepositable compositions
JPH0338228A (en) Porous polymer membrane and its preparation
JPS54132291A (en) Novel bioreactor
JPS55127437A (en) Production of composite ion-exchange membrane
GB987651A (en) A process for the removal of impurities from actinides
GB1272574A (en) Improvements in or relating to semipermeable membranes and to the method of preparing same
GB1341701A (en) Method of concentrating paint
GB1412252A (en) Membranous articles and methods for their manufacture
JPS5315272A (en) Bonding method for semipermeable membranes made of acrylonitrile copolymer
MX167847B (en) PROCEDURE TO PREVENT THE GELIFICATION OF CONCENTRATED PHOTOACTIVATOR AUOSA SOLUTIONS
JPS56150403A (en) Improved osmotic treatment process
SU617041A1 (en) Method of purifying aqueous solutions from organic substances

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee