CH512550A - Verfahren zum Herstellen einer semipermeablen Membran - Google Patents

Verfahren zum Herstellen einer semipermeablen Membran

Info

Publication number
CH512550A
CH512550A CH1949269A CH1949269A CH512550A CH 512550 A CH512550 A CH 512550A CH 1949269 A CH1949269 A CH 1949269A CH 1949269 A CH1949269 A CH 1949269A CH 512550 A CH512550 A CH 512550A
Authority
CH
Switzerland
Prior art keywords
semi
making
permeable membrane
permeable
membrane
Prior art date
Application number
CH1949269A
Other languages
English (en)
Inventor
Busch Walter Dr Dipl-Chem
Franz Dr Schwarzer
Original Assignee
Kalle Ag
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 Kalle Ag filed Critical Kalle Ag
Publication of CH512550A publication Critical patent/CH512550A/de

Links

Classifications

    • 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
    • B01D71/56—Polyamides, e.g. polyester-amides
    • 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
    • C08J2201/0544—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being aqueous

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
CH1949269A 1968-12-31 1969-12-30 Verfahren zum Herstellen einer semipermeablen Membran CH512550A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681817542 DE1817542A1 (de) 1968-12-31 1968-12-31 Verfahren zum Herstellen einer semipermeablen Membran

Publications (1)

Publication Number Publication Date
CH512550A true CH512550A (de) 1971-09-15

Family

ID=5717636

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1949269A CH512550A (de) 1968-12-31 1969-12-30 Verfahren zum Herstellen einer semipermeablen Membran

Country Status (11)

Country Link
US (1) US3703570A (de)
JP (1) JPS5027830B1 (de)
BE (1) BE743821A (de)
CH (1) CH512550A (de)
DE (1) DE1817542A1 (de)
FR (1) FR2027448A1 (de)
GB (1) GB1279719A (de)
IL (1) IL33621A (de)
LU (1) LU60122A1 (de)
NL (1) NL6919081A (de)
SE (1) SE354786B (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993625A (en) * 1973-05-28 1976-11-23 Toray Industries, Inc. Permselective polymeric membranes of organic polyamide or polyhydrazide
US3876738A (en) * 1973-07-18 1975-04-08 Amf Inc Process for producing microporous films and products
US4062921A (en) * 1976-02-19 1977-12-13 University Of Delaware Solvents for and purification of chitin
US4203847A (en) * 1977-05-25 1980-05-20 Millipore Corporation Making porous membranes and the membrane products
US4203848A (en) * 1977-05-25 1980-05-20 Millipore Corporation Processes of making a porous membrane material from polyvinylidene fluoride, and products
US4157960A (en) * 1977-11-30 1979-06-12 Monsanto Company Method for enhancing membrane separation
US4600692A (en) * 1983-02-10 1986-07-15 Purification Engineering, Inc. Immobilized cells for preparing phenylalanine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3283042A (en) * 1963-08-23 1966-11-01 Univ California Method of forming porous membranes

Also Published As

Publication number Publication date
JPS5027830B1 (de) 1975-09-10
DE1817542A1 (de) 1970-07-09
SE354786B (de) 1973-03-26
FR2027448A1 (de) 1970-09-25
US3703570A (en) 1972-11-21
LU60122A1 (de) 1971-08-17
GB1279719A (en) 1972-06-28
BE743821A (de) 1970-06-29
IL33621A0 (en) 1970-02-19
NL6919081A (de) 1970-07-02
IL33621A (en) 1973-01-30

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Legal Events

Date Code Title Description
PL Patent ceased