CA1096556A - Flexible microporous cellulosic membranes and methods of formation and use thereof - Google Patents

Flexible microporous cellulosic membranes and methods of formation and use thereof

Info

Publication number
CA1096556A
CA1096556A CA316,347A CA316347A CA1096556A CA 1096556 A CA1096556 A CA 1096556A CA 316347 A CA316347 A CA 316347A CA 1096556 A CA1096556 A CA 1096556A
Authority
CA
Canada
Prior art keywords
membrane
membranes
cellulose
polymers
formation
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
CA316,347A
Other languages
English (en)
French (fr)
Inventor
Robert E. Kesting
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.)
NUCLEPORE (CANADA) Inc
Original Assignee
NUCLEPORE (CANADA) Inc
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 US05/953,377 external-priority patent/US4220477A/en
Application filed by NUCLEPORE (CANADA) Inc filed Critical NUCLEPORE (CANADA) Inc
Application granted granted Critical
Publication of CA1096556A publication Critical patent/CA1096556A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/08Polysaccharides
    • B01D71/12Cellulose derivatives
    • B01D71/22Cellulose ethers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/08Polysaccharides
    • B01D71/12Cellulose derivatives
    • B01D71/14Esters of organic acids
    • B01D71/16Cellulose acetate
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/08Polysaccharides
    • B01D71/12Cellulose derivatives
    • B01D71/20Esters of inorganic acids, e.g. cellulose nitrate
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D61/00Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14Ultrafiltration; Microfiltration
    • B01D61/147Microfiltration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
CA316,347A 1977-11-18 1978-11-16 Flexible microporous cellulosic membranes and methods of formation and use thereof Expired CA1096556A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US85277677A 1977-11-18 1977-11-18
US852,776 1977-11-18
US953,377 1977-11-21
US05/953,377 US4220477A (en) 1978-10-23 1978-10-23 Flexible microporous cellulosic membranes and methods of formation and use thereof

Publications (1)

Publication Number Publication Date
CA1096556A true CA1096556A (en) 1981-03-03

Family

ID=27127086

Family Applications (1)

Application Number Title Priority Date Filing Date
CA316,347A Expired CA1096556A (en) 1977-11-18 1978-11-16 Flexible microporous cellulosic membranes and methods of formation and use thereof

Country Status (8)

Country Link
JP (1) JPS5490082A (de)
BR (1) BR7807556A (de)
CA (1) CA1096556A (de)
DE (1) DE2849863C3 (de)
FR (1) FR2409077A1 (de)
GB (1) GB2009031B (de)
IE (1) IE47585B1 (de)
IT (1) IT7851950A0 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19613484A1 (de) * 1996-04-04 1997-10-09 Buna Sow Leuna Olefinverb Gmbh Formmassen zur Herstellung von Gastrennmembranen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE329117C (de) * 1916-08-21 1920-11-15 Richard Zsigmondy Dr Membranfilter und Verfahren zu deren Herstellung
DE1017596B (de) * 1956-07-04 1957-10-17 Membranfiltergesellschaft Sart Verfahren und Vorrichtung zur kontinuierlichen Herstellung von Membranfiltern
JPS5538366B2 (de) * 1974-03-13 1980-10-03
GB1430323A (en) * 1974-03-20 1976-03-31 Chem Systems Process for the preparation of asymmetric reverse osmosis membranes

Also Published As

Publication number Publication date
BR7807556A (pt) 1979-07-24
JPS5490082A (en) 1979-07-17
FR2409077B1 (de) 1984-11-16
IE782266L (en) 1979-05-18
DE2849863B2 (de) 1981-03-12
GB2009031B (en) 1982-03-10
DE2849863C3 (de) 1982-06-24
DE2849863A1 (de) 1979-05-31
IT7851950A0 (it) 1978-11-17
IE47585B1 (en) 1984-05-02
JPS5634132B2 (de) 1981-08-08
FR2409077A1 (fr) 1979-06-15
GB2009031A (en) 1979-06-13

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Legal Events

Date Code Title Description
MKEX Expiry