FR2329702A1 - ASYMMETRICAL POLYIMIDE MEMBRANES - Google Patents
ASYMMETRICAL POLYIMIDE MEMBRANESInfo
- Publication number
- FR2329702A1 FR2329702A1 FR7326509A FR7326509A FR2329702A1 FR 2329702 A1 FR2329702 A1 FR 2329702A1 FR 7326509 A FR7326509 A FR 7326509A FR 7326509 A FR7326509 A FR 7326509A FR 2329702 A1 FR2329702 A1 FR 2329702A1
- Authority
- FR
- France
- Prior art keywords
- polyimide membranes
- asymmetrical
- asymmetrical polyimide
- membranes
- polyimide
- 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
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)
- Compositions Of Macromolecular Compounds (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
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 true FR2329702A1 (en) | 1977-05-27 |
FR2329702B1 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 (28)
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 |
JPS57209608A (en) * | 1981-06-22 | 1982-12-23 | Ube Ind Ltd | Preparation of composite polyimide separation film |
JPS57209607A (en) * | 1981-06-22 | 1982-12-23 | Ube Ind Ltd | Preparation of 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 |
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 |
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 |
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 |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3310506A (en) * | 1963-03-18 | 1967-03-21 | Du Pont | Cellular polyimide product |
-
1973
- 1973-07-18 JP JP48080383A patent/JPS5825690B2/en not_active Expired
- 1973-07-19 GB GB3439773A patent/GB1435151A/en not_active Expired
- 1973-07-19 FR FR7326509A patent/FR2329702A1/en active Granted
- 1973-07-20 DE DE2337121A patent/DE2337121C3/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2337121B2 (en) | 1981-05-07 |
JPS4945152A (en) | 1974-04-30 |
FR2329702B1 (en) | 1978-04-14 |
JPS5825690B2 (en) | 1983-05-28 |
DE2337121C3 (en) | 1982-03-18 |
DE2337121A1 (en) | 1974-02-07 |
GB1435151A (en) | 1976-05-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |