BR7807556A - FLEXIBLE MICROPOROUS CELLULOSIC MEMBRANES AND PROCESSES OF FORMATION AND USE - Google Patents

FLEXIBLE MICROPOROUS CELLULOSIC MEMBRANES AND PROCESSES OF FORMATION AND USE

Info

Publication number
BR7807556A
BR7807556A BR7807556A BR7807556A BR7807556A BR 7807556 A BR7807556 A BR 7807556A BR 7807556 A BR7807556 A BR 7807556A BR 7807556 A BR7807556 A BR 7807556A BR 7807556 A BR7807556 A BR 7807556A
Authority
BR
Brazil
Prior art keywords
processes
formation
cellulosic membranes
flexible microporous
microporous cellulosic
Prior art date
Application number
BR7807556A
Other languages
Portuguese (pt)
Inventor
R Kesting
Original Assignee
Johns Manville
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 Johns Manville filed Critical Johns Manville
Publication of BR7807556A publication Critical patent/BR7807556A/en

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
    • B01D71/08—Polysaccharides
    • B01D71/12—Cellulose derivatives
    • B01D71/22—Cellulose ethers
    • 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
    • B01D71/08—Polysaccharides
    • B01D71/12—Cellulose derivatives
    • B01D71/14—Esters of organic acids
    • B01D71/16—Cellulose acetate
    • 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
    • B01D71/08—Polysaccharides
    • B01D71/12—Cellulose derivatives
    • B01D71/20—Esters of inorganic acids, e.g. cellulose nitrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/147—Microfiltration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
BR7807556A 1977-11-18 1978-11-17 FLEXIBLE MICROPOROUS CELLULOSIC MEMBRANES AND PROCESSES OF FORMATION AND USE BR7807556A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85277677A 1977-11-18 1977-11-18
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
BR7807556A true BR7807556A (en) 1979-07-24

Family

ID=27127086

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7807556A BR7807556A (en) 1977-11-18 1978-11-17 FLEXIBLE MICROPOROUS CELLULOSIC MEMBRANES AND PROCESSES OF FORMATION AND USE

Country Status (8)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19613484A1 (en) * 1996-04-04 1997-10-09 Buna Sow Leuna Olefinverb Gmbh Biodegradable gas separation membrane with high selectivity for carbon di:oxide permeation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE329117C (en) * 1916-08-21 1920-11-15 Richard Zsigmondy Dr Membrane filters and processes for their manufacture
DE1017596B (en) * 1956-07-04 1957-10-17 Membranfiltergesellschaft Sart Method and device for the continuous production of membrane filters
JPS5538366B2 (en) * 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
IE782266L (en) 1979-05-18
FR2409077B1 (en) 1984-11-16
DE2849863A1 (en) 1979-05-31
JPS5490082A (en) 1979-07-17
JPS5634132B2 (en) 1981-08-08
CA1096556A (en) 1981-03-03
FR2409077A1 (en) 1979-06-15
IT7851950A0 (en) 1978-11-17
GB2009031A (en) 1979-06-13
DE2849863C3 (en) 1982-06-24
IE47585B1 (en) 1984-05-02
DE2849863B2 (en) 1981-03-12
GB2009031B (en) 1982-03-10

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