FR2319663A1 - METHOD FOR PREPARING AN ASYMMETRICAL FILM BY WET METHOD - Google Patents

METHOD FOR PREPARING AN ASYMMETRICAL FILM BY WET METHOD

Info

Publication number
FR2319663A1
FR2319663A1 FR7622848A FR7622848A FR2319663A1 FR 2319663 A1 FR2319663 A1 FR 2319663A1 FR 7622848 A FR7622848 A FR 7622848A FR 7622848 A FR7622848 A FR 7622848A FR 2319663 A1 FR2319663 A1 FR 2319663A1
Authority
FR
France
Prior art keywords
preparing
asymmetrical film
wet
wet method
asymmetrical
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.)
Granted
Application number
FR7622848A
Other languages
French (fr)
Other versions
FR2319663B1 (en
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.)
Idemitsu Kosan Co Ltd
Original Assignee
Idemitsu Kosan Co Ltd
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 Idemitsu Kosan Co Ltd filed Critical Idemitsu Kosan Co Ltd
Publication of FR2319663A1 publication Critical patent/FR2319663A1/en
Application granted granted Critical
Publication of FR2319663B1 publication Critical patent/FR2319663B1/fr
Granted 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
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0016—Coagulation
    • B01D67/00165—Composition of the coagulation baths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/02—Details relating to pores or porosity of the membranes
    • B01D2325/022—Asymmetric membranes
    • B01D2325/0231—Dense layers being placed on the outer side of the cross-section

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
FR7622848A 1975-07-31 1976-07-27 METHOD FOR PREPARING AN ASYMMETRICAL FILM BY WET METHOD Granted FR2319663A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50092535A JPS5216572A (en) 1975-07-31 1975-07-31 Method of producing wet film

Publications (2)

Publication Number Publication Date
FR2319663A1 true FR2319663A1 (en) 1977-02-25
FR2319663B1 FR2319663B1 (en) 1978-05-05

Family

ID=14057048

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7622848A Granted FR2319663A1 (en) 1975-07-31 1976-07-27 METHOD FOR PREPARING AN ASYMMETRICAL FILM BY WET METHOD

Country Status (5)

Country Link
JP (1) JPS5216572A (en)
DE (1) DE2634604C3 (en)
FR (1) FR2319663A1 (en)
GB (1) GB1502536A (en)
IT (1) IT1062644B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470371B1 (en) * 1979-11-23 1985-09-13 Neotronics Ltd APPARATUS FOR MEASURING THE EFFICIENCY OF A COMBUSTION INSTALLATION
JPH0220742Y2 (en) * 1981-01-09 1990-06-06
JPS58175226A (en) * 1982-04-08 1983-10-14 株式会社安川電機 Gas sealed breaker
DE3217047A1 (en) * 1982-05-06 1983-11-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München MEMBRANES ON THE BASIS OF SILICA ACID THEROPOLYCONDENSATES, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5512054B2 (en) * 1972-09-22 1980-03-29

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
DE2634604A1 (en) 1977-02-03
FR2319663B1 (en) 1978-05-05
DE2634604B2 (en) 1978-06-01
DE2634604C3 (en) 1979-01-25
JPS561345B2 (en) 1981-01-13
GB1502536A (en) 1978-03-01
JPS5216572A (en) 1977-02-07
IT1062644B (en) 1984-10-20

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Legal Events

Date Code Title Description
ST Notification of lapse