FR2329702B1 - - Google Patents

Info

Publication number
FR2329702B1
FR2329702B1 FR7326509A FR7326509A FR2329702B1 FR 2329702 B1 FR2329702 B1 FR 2329702B1 FR 7326509 A FR7326509 A FR 7326509A FR 7326509 A FR7326509 A FR 7326509A FR 2329702 B1 FR2329702 B1 FR 2329702B1
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
FR7326509A
Other languages
French (fr)
Other versions
FR2329702A1 (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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of FR2329702A1 publication Critical patent/FR2329702A1/en
Application granted granted Critical
Publication of FR2329702B1 publication Critical patent/FR2329702B1/fr
Granted 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
    • B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
    • B01D71/62—Polycondensates having nitrogen-containing heterocyclic rings in the main chain
    • B01D71/64—Polyimides; Polyamide-imides; Polyester-imides; Polyamide acids or similar polyimide precursors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
FR7326509A 1972-07-20 1973-07-19 ASYMMETRICAL POLYIMIDE MEMBRANES Granted FR2329702A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27380572A 1972-07-20 1972-07-20

Publications (2)

Publication Number Publication Date
FR2329702A1 FR2329702A1 (en) 1977-05-27
FR2329702B1 true FR2329702B1 (en) 1978-04-14

Family

ID=23045480

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7326509A Granted FR2329702A1 (en) 1972-07-20 1973-07-19 ASYMMETRICAL POLYIMIDE MEMBRANES

Country Status (4)

Country Link
JP (1) JPS5825690B2 (en)
DE (1) DE2337121C3 (en)
FR (1) FR2329702A1 (en)
GB (1) GB1435151A (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5494477A (en) * 1978-01-10 1979-07-26 Nitto Electric Ind Co Ltd Manufacture of selective permeable membrnae
US4331705A (en) 1979-05-11 1982-05-25 Minnesota Mining And Manufacturing Company Curing of polyamic acids or salts thereof by ultraviolet exposure
JPS5715819A (en) * 1980-07-01 1982-01-27 Ube Ind Ltd Gas separating material
JPS57170936A (en) * 1981-04-14 1982-10-21 Ube Ind Ltd Preparation of porous polyimide film
JPS57209607A (en) * 1981-06-22 1982-12-23 Ube Ind Ltd Preparation of polyimide separation film
JPS57209608A (en) * 1981-06-22 1982-12-23 Ube Ind Ltd Preparation of composite polyimide separation film
JPS588514A (en) * 1981-07-08 1983-01-18 Ube Ind Ltd Preparation of composite separation film
GB2104411B (en) * 1981-07-08 1985-02-20 Ube Industries Aromatic polyimide composite separating membrane
JPS5811003A (en) * 1981-07-10 1983-01-21 Ube Ind Ltd Polyimide type gas separating membrane
JPS59115738A (en) * 1982-12-21 1984-07-04 Sumitomo Electric Ind Ltd Selective gas-permeable membrane and its manufacture
US4532041A (en) * 1983-05-13 1985-07-30 Exxon Research And Engineering Co. Asymmetric polyimide reverse osmosis membrane, method for preparation of same and use thereof for organic liquid separations
JPS59230604A (en) * 1983-05-13 1984-12-25 エクソン・リサ−チ・アンド・エンジニアリング・カンパニ− Crossed polyimide reverse osmosis membrane, manufacture thereof and use thereof for separating organic liquid
JPS60181128A (en) * 1984-02-29 1985-09-14 Sumitomo Bakelite Co Ltd Heat-resistant resin composition
US4571444A (en) * 1984-04-27 1986-02-18 Exxon Research And Engineering Co. Process for separating alkylaromatics from aromatic solvents and the separation of the alkylaromatic isomers using membranes
US4606903A (en) * 1984-04-27 1986-08-19 Exxon Research And Engineering Co. Membrane separation of uncoverted carbon fiber precursors from flux solvent and/or anti-solvent
JPS6123485U (en) * 1984-07-18 1986-02-12 東京部品工業株式会社 Gear pump with metering circuit
JPS62200186U (en) * 1986-06-10 1987-12-19
US4717393A (en) * 1986-10-27 1988-01-05 E. I. Du Pont De Nemours And Company Polyimide gas separation membranes
US4717394A (en) * 1986-10-27 1988-01-05 E. I. Du Pont De Nemours And Company Polyimide gas separation membranes
US4978737A (en) * 1988-07-12 1990-12-18 Hoechst Celanese Corp. Copolyimides derived from 2,2-bis (amino phenyl) hexofluoropropane
JP2835052B2 (en) * 1988-08-05 1998-12-14 鐘淵化学工業株式会社 Modified polyimide copolymer and polyamic acid copolymer
JPH0253827A (en) * 1988-08-17 1990-02-22 Kanegafuchi Chem Ind Co Ltd Polyimide copolymer
US4981497A (en) * 1989-06-01 1991-01-01 E. I. Du Pont De Nemours And Company Amine-modified polyimide membranes
US5074891A (en) * 1989-07-27 1991-12-24 Hoechst Celanese Corp. Method of gas separation and membranes therefor
US7025804B2 (en) * 2002-12-02 2006-04-11 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for separating hydrocarbon-containing gas mixtures using hydrocarbon-resistant membranes
RU2335335C2 (en) 2006-09-19 2008-10-10 Государственный научно-исследовательский институт особо чистых биопрепаратов Ultra-filtrating heat and chemical resistant polyimide membrane and method of its
CN112521937B (en) * 2020-12-10 2022-07-19 四川师范大学 Preparation and application of rare earth fluorescent composite material for uric acid detection
CN118434797A (en) 2021-12-23 2024-08-02 株式会社I.S.T Porous polyimide film and method for producing same
CN115369505B (en) * 2022-07-08 2024-05-03 株洲时代新材料科技股份有限公司 Multistage dispersion plate precipitation forming device and forming process, fibrid precipitation purifying device and technology

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310506A (en) * 1963-03-18 1967-03-21 Du Pont Cellular polyimide product

Also Published As

Publication number Publication date
DE2337121C3 (en) 1982-03-18
FR2329702A1 (en) 1977-05-27
JPS5825690B2 (en) 1983-05-28
DE2337121A1 (en) 1974-02-07
GB1435151A (en) 1976-05-12
JPS4945152A (en) 1974-04-30
DE2337121B2 (en) 1981-05-07

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Legal Events

Date Code Title Description
ST Notification of lapse