FR2072225A5 - - Google Patents

Info

Publication number
FR2072225A5
FR2072225A5 FR7041922A FR7041922A FR2072225A5 FR 2072225 A5 FR2072225 A5 FR 2072225A5 FR 7041922 A FR7041922 A FR 7041922A FR 7041922 A FR7041922 A FR 7041922A FR 2072225 A5 FR2072225 A5 FR 2072225A5
Authority
FR
France
Prior art keywords
ethylene glycol
membrane
units
copolymer
dialysis
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
FR7041922A
Other languages
French (fr)
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.)
Czech Academy of Sciences
Original Assignee
Czech Academy of Sciences
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 Czech Academy of Sciences filed Critical Czech Academy of Sciences
Application granted granted Critical
Publication of FR2072225A5 publication Critical patent/FR2072225A5/fr
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
    • B01D67/0006—Organic membrane manufacture by chemical reactions
    • 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
    • B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
    • 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
    • B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
    • B01D71/82—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74 characterised by the presence of specified groups, e.g. introduced by chemical after-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/12—Ion-exchange processes in general; Apparatus therefor characterised by the use of ion-exchange material in the form of ribbons, filaments, fibres or sheets, e.g. membranes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • External Artificial Organs (AREA)
  • Materials For Medical Uses (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

1320961 Copolymer membrane; dialysis CESKOSLOVENSKA AKADEMIE VED 22 Oct 1970 [25 Nov 1969] 50333/70 Heading B1X Charged solute particles are separated from a solvent by diffusion through a membrane formed of a copolymer comprising at least 50 mol per cent (preferably over 70 mol per cent) of units each having a hydroxyl group, and also comprising units each having a basic and/or carboxylic acid group. The hydroxyl group units may be derived from ethylene glycol monomethacrylate, ethylene glycol monoacrylate or the acrylates or methacrylates of di-ethylene glycol, triethylene glycol, propylene glycol or mixed condensates of ethylene glycol and propylene glycol, or, by saponification, from vinyl acetate. Basic groups may be derived from N, N-diethylaminoethyl methacrylate, N-N-dimethylamino ethyl acrylate or p-diethylaminostyrene; and carboxylic groups from methacrylic acrylic, itaconic acids or maleic anhydride. The copolymer membrane may be formed by forcing a mixture of the monomers between glass plates between which a polyamide foil or a fabric of strongly oriented poly (ethylene terephthalate) monofilament has been placed, polyethylene foil being used to prevent adhesion to the glass plates. Alternatively, wire gauze, porous alumina or sintered glass may be used to reinforce the membrane. The membranes can be used in reverse osmosis, e.g. for desalination, and in dialysis of blood,
FR7041922A 1969-11-25 1970-11-23 Expired FR2072225A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS7774A CS148495B1 (en) 1969-11-25 1969-11-25

Publications (1)

Publication Number Publication Date
FR2072225A5 true FR2072225A5 (en) 1971-09-24

Family

ID=5427449

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7041922A Expired FR2072225A5 (en) 1969-11-25 1970-11-23

Country Status (6)

Country Link
CA (1) CA947664A (en)
CH (1) CH559052A5 (en)
CS (1) CS148495B1 (en)
DE (1) DE2051631A1 (en)
FR (1) FR2072225A5 (en)
GB (1) GB1320961A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0232442A1 (en) * 1986-02-08 1987-08-19 Asahi Kasei Kogyo Kabushiki Kaisha Improved blood-purifying membrane and process for preparation thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5554004A (en) * 1978-10-18 1980-04-21 Teijin Ltd Selective permeable membrane and its manufacturing
EP1924341A1 (en) 2005-08-05 2008-05-28 FUJIFILM Manufacturing Europe B.V. Porous membrane and recording medium comprising same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0232442A1 (en) * 1986-02-08 1987-08-19 Asahi Kasei Kogyo Kabushiki Kaisha Improved blood-purifying membrane and process for preparation thereof

Also Published As

Publication number Publication date
CS148495B1 (en) 1973-02-22
DE2051631A1 (en) 1971-05-27
CA947664A (en) 1974-05-21
GB1320961A (en) 1973-06-20
CH559052A5 (en) 1975-02-28

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Legal Events

Date Code Title Description
ST Notification of lapse