FR2471801B1 - - Google Patents

Info

Publication number
FR2471801B1
FR2471801B1 FR7931293A FR7931293A FR2471801B1 FR 2471801 B1 FR2471801 B1 FR 2471801B1 FR 7931293 A FR7931293 A FR 7931293A FR 7931293 A FR7931293 A FR 7931293A FR 2471801 B1 FR2471801 B1 FR 2471801B1
Authority
FR
France
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
FR7931293A
Other languages
French (fr)
Other versions
FR2471801A1 (fr
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.)
Toray Industries Inc
Original Assignee
Toray Industries 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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to FR7931293A priority Critical patent/FR2471801A1/fr
Publication of FR2471801A1 publication Critical patent/FR2471801A1/fr
Application granted granted Critical
Publication of FR2471801B1 publication Critical patent/FR2471801B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
    • B01D69/1251—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction by interfacial polymerisation
    • 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
    • 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
    • B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
    • B01D71/60—Polyamines
    • B01D71/601—Polyethylenimine

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
FR7931293A 1979-12-20 1979-12-20 Procede de production de membranes composites semi-permeables a couche ultra-mince formant barriere vis-a-vis du solute et nouveaux produits ainsi obtenus Granted FR2471801A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7931293A FR2471801A1 (fr) 1979-12-20 1979-12-20 Procede de production de membranes composites semi-permeables a couche ultra-mince formant barriere vis-a-vis du solute et nouveaux produits ainsi obtenus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7931293A FR2471801A1 (fr) 1979-12-20 1979-12-20 Procede de production de membranes composites semi-permeables a couche ultra-mince formant barriere vis-a-vis du solute et nouveaux produits ainsi obtenus

Publications (2)

Publication Number Publication Date
FR2471801A1 FR2471801A1 (fr) 1981-06-26
FR2471801B1 true FR2471801B1 (2) 1984-11-16

Family

ID=9233015

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7931293A Granted FR2471801A1 (fr) 1979-12-20 1979-12-20 Procede de production de membranes composites semi-permeables a couche ultra-mince formant barriere vis-a-vis du solute et nouveaux produits ainsi obtenus

Country Status (1)

Country Link
FR (1) FR2471801A1 (2)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5727102A (en) * 1980-07-28 1982-02-13 Nitto Electric Ind Co Ltd Composite semipermeable membrane and its production

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039440A (en) * 1972-09-19 1977-08-02 The United States Of America As Represented By The Secretary Of The Interior Reverse osmosis membrane
US4005012A (en) * 1975-09-22 1977-01-25 The United States Of America As Represented By The Secretary Of The Interior Semipermeable membranes and the method for the preparation thereof
FR2371477A1 (fr) * 1976-04-02 1978-06-16 Uop Inc Procede de preparation de membranes semipermeables composites
US4265745A (en) * 1977-05-25 1981-05-05 Teijin Limited Permselective membrane
JPS54151570A (en) * 1978-05-22 1979-11-28 Teijin Ltd Selectively permeable composite membrane and its manufacture
JPS5554004A (en) * 1978-10-18 1980-04-21 Teijin Ltd Selective permeable membrane and its manufacturing

Also Published As

Publication number Publication date
FR2471801A1 (fr) 1981-06-26

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