CA1025590A - Microporous polyester membranes and polymer assisted phase inversion process for making same - Google Patents

Microporous polyester membranes and polymer assisted phase inversion process for making same

Info

Publication number
CA1025590A
CA1025590A CA159,248A CA159248A CA1025590A CA 1025590 A CA1025590 A CA 1025590A CA 159248 A CA159248 A CA 159248A CA 1025590 A CA1025590 A CA 1025590A
Authority
CA
Canada
Prior art keywords
phase inversion
making same
inversion process
polymer assisted
polyester membranes
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
CA159,248A
Other languages
French (fr)
Other versions
CA159248S (en
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.)
Gelman Sciences Inc
Original Assignee
Chemical Systems 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
Application filed by Chemical Systems Inc filed Critical Chemical Systems Inc
Priority to CA290,213A priority Critical patent/CA1047718A/en
Priority to CA290,212A priority patent/CA1062412A/en
Priority to CA290,214A priority patent/CA1047719A/en
Application granted granted Critical
Publication of CA1025590A publication Critical patent/CA1025590A/en
Expired legal-status Critical Current

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
    • B01D71/48—Polyesters
    • 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
    • B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/12—Specific ratios of components used

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Moulding By Coating Moulds (AREA)
  • Laminated Bodies (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
CA159,248A 1971-12-16 1972-12-18 Microporous polyester membranes and polymer assisted phase inversion process for making same Expired CA1025590A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA290,213A CA1047718A (en) 1971-12-16 1977-11-04 Microporous polyester membranes and polymer assisted phase inversion process for making same
CA290,212A CA1062412A (en) 1971-12-16 1977-11-04 Microporous polyester membranes and polymer assisted phase inversion process for making same
CA290,214A CA1047719A (en) 1971-12-16 1977-11-04 Microporous polyester membranes and polymer assisted phase inversion process for making same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20892871A 1971-12-16 1971-12-16

Publications (1)

Publication Number Publication Date
CA1025590A true CA1025590A (en) 1978-01-31

Family

ID=22776626

Family Applications (1)

Application Number Title Priority Date Filing Date
CA159,248A Expired CA1025590A (en) 1971-12-16 1972-12-18 Microporous polyester membranes and polymer assisted phase inversion process for making same

Country Status (4)

Country Link
CA (1) CA1025590A (en)
DE (1) DE2261895B2 (en)
FR (1) FR2165957B1 (en)
GB (2) GB1425318A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0611320B2 (en) * 1984-10-02 1994-02-16 旭メデイカル株式会社 Hollow fiber membrane for hemodialysis
GB8620484D0 (en) * 1986-08-22 1986-10-01 Raychem Ltd Plugged microporous film
EP2060315A3 (en) * 2007-11-15 2009-08-12 DSMIP Assets B.V. High performance membrane
PL2723479T3 (en) * 2011-06-23 2021-12-20 Solvay Specialty Polymers Italy S.P.A. Process for manufacturing porous membranes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216882A (en) * 1960-12-05 1965-11-09 Nalco Chemical Co Porous plastic film
US3423491A (en) * 1964-09-02 1969-01-21 Dow Chemical Co Permselective hollow fibers and method of making
CH446714A (en) * 1964-09-23 1967-11-15 Rhone Poulenc Sa Process for obtaining a microporous material
DE1771082B1 (en) * 1968-03-30 1970-10-08 Varta Gmbh Separation layer for galvanic primary elements with aqueous electrolyte made from a mixture of at least two plastics, one of which can be extracted as a pore-forming agent

Also Published As

Publication number Publication date
DE2261895B2 (en) 1979-10-25
FR2165957B1 (en) 1979-02-09
FR2165957A1 (en) 1973-08-10
DE2261895A1 (en) 1973-06-28
GB1425318A (en) 1976-02-18
GB1425319A (en) 1976-02-18

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