FR2298570A1 - Membrane poreuse et procede de production de cette membrane - Google Patents

Membrane poreuse et procede de production de cette membrane

Info

Publication number
FR2298570A1
FR2298570A1 FR7601674A FR7601674A FR2298570A1 FR 2298570 A1 FR2298570 A1 FR 2298570A1 FR 7601674 A FR7601674 A FR 7601674A FR 7601674 A FR7601674 A FR 7601674A FR 2298570 A1 FR2298570 A1 FR 2298570A1
Authority
FR
France
Prior art keywords
membrane
producing
porous
porous membrane
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
FR7601674A
Other languages
English (en)
French (fr)
Other versions
FR2298570B1 (enrdf_load_stackoverflow
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.)
Aligena AG
Original Assignee
Aligena AG
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 Aligena AG filed Critical Aligena AG
Publication of FR2298570A1 publication Critical patent/FR2298570A1/fr
Application granted granted Critical
Publication of FR2298570B1 publication Critical patent/FR2298570B1/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
    • B01D71/08—Polysaccharides
    • B01D71/12—Cellulose derivatives
    • B01D71/14—Esters of organic acids
    • B01D71/16—Cellulose acetate
    • 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
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0093—Chemical modification
    • B01D67/00931—Chemical modification by introduction of specific groups after membrane formation, e.g. by grafting

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Transplantation (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (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)
FR7601674A 1975-01-23 1976-01-22 Membrane poreuse et procede de production de cette membrane Granted FR2298570A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH82775A CH614127A5 (en) 1975-01-23 1975-01-23 Porous membrane and method for production thereof

Publications (2)

Publication Number Publication Date
FR2298570A1 true FR2298570A1 (fr) 1976-08-20
FR2298570B1 FR2298570B1 (enrdf_load_stackoverflow) 1979-02-02

Family

ID=4196116

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7601674A Granted FR2298570A1 (fr) 1975-01-23 1976-01-22 Membrane poreuse et procede de production de cette membrane

Country Status (6)

Country Link
JP (1) JPS5723698B2 (enrdf_load_stackoverflow)
CH (1) CH614127A5 (enrdf_load_stackoverflow)
DE (1) DE2505254A1 (enrdf_load_stackoverflow)
FR (1) FR2298570A1 (enrdf_load_stackoverflow)
GB (1) GB1504261A (enrdf_load_stackoverflow)
IT (1) IT1053401B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026399A1 (de) * 1979-09-19 1981-04-08 Aligena Ag Poröse, semipermeable, mit ionisierbaren Gruppen modifizierte Celluloseacetatmembranen, Verfahren zu ihrer Herstellung und ihre Verwendung
FR2513649A1 (fr) * 1981-09-29 1983-04-01 Ciba Geigy Ag Preparations colorantes stables au stockage, leur procede de fabrication et leur utilisation

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041239A3 (de) * 1980-06-04 1982-05-12 Ciba-Geigy Ag Stabile konzentrierte flüssige Zubereitungen von metallfreien Farbstoffen, Verfahren zu ihrer Herstellung und ihre Verwendung
IL63638A0 (en) * 1980-09-16 1981-11-30 Aligena Ag Semipermeable composite membranes,their manufacture and their use
ZA816730B (en) * 1981-03-06 1982-10-27 Ciba Geigy Process for the preparation of concentrated aqueous compositions of anionic dyes
EP0059782B1 (de) * 1981-03-06 1986-05-21 Ciba-Geigy Ag Verfahren zur Herstellung konzentrierter wässriger Farbstoffpräparate von anionischen Papier- oder Wollfarbstoffen
CH652313A5 (de) * 1981-08-25 1985-11-15 Ciba Geigy Ag Verfahren zur herstellung konzentrierter waesseriger zubereitungen von synthetischen anionischen dispergatoren.
CH647021A5 (de) * 1981-09-22 1984-12-28 Ciba Geigy Ag Verfahren zur herstellung lagerstabiler aufhellerformulierungen.
CH654424A5 (de) * 1983-03-25 1986-02-14 Ciba Geigy Ag Verfahren zur verhinderung des gelierens von konzentrierten waessrigen photoaktivatorloesungen.
JPS59182863A (ja) * 1983-04-01 1984-10-17 Canon Inc 染料精製装置
JPS59182862A (ja) * 1983-04-01 1984-10-17 Canon Inc 染料精製装置
JPS59182861A (ja) * 1983-04-01 1984-10-17 Canon Inc 染料精製装置
EP1200179B8 (en) * 1999-07-30 2007-02-21 Genentech, Inc. Charged filtration membranes and uses therefor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2229439A1 (enrdf_load_stackoverflow) * 1973-05-16 1974-12-13 Sumitomo Chemical Co

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2419930A1 (de) * 1973-04-30 1974-11-07 Dorr Oliver Inc Ultrafiltrationsmembran und verfahren zu deren herstellung
DE2437594A1 (de) * 1974-08-05 1976-02-26 Riedel De Haen Ag Ionenaustauscher auf cellulosebasis und verfahren zu seiner herstellung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2229439A1 (enrdf_load_stackoverflow) * 1973-05-16 1974-12-13 Sumitomo Chemical Co

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ARTICLE:"WATER TRANSPORT THROUGH PLASTICIZEDMEMBRANES" BY VOFSI, DAVID, KEDEM, ORA DANS CHEMICAL ABSTRACTS, VOL. 75, NO. 6, 9 AOUT 1971, NO. 40 184T PAGE 267 ) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026399A1 (de) * 1979-09-19 1981-04-08 Aligena Ag Poröse, semipermeable, mit ionisierbaren Gruppen modifizierte Celluloseacetatmembranen, Verfahren zu ihrer Herstellung und ihre Verwendung
FR2513649A1 (fr) * 1981-09-29 1983-04-01 Ciba Geigy Ag Preparations colorantes stables au stockage, leur procede de fabrication et leur utilisation

Also Published As

Publication number Publication date
DE2505254C2 (enrdf_load_stackoverflow) 1987-11-19
GB1504261A (en) 1978-03-15
DE2505254A1 (de) 1976-07-29
IT1053401B (it) 1981-08-31
JPS5199695A (enrdf_load_stackoverflow) 1976-09-02
FR2298570B1 (enrdf_load_stackoverflow) 1979-02-02
JPS5723698B2 (enrdf_load_stackoverflow) 1982-05-20
CH614127A5 (en) 1979-11-15

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Legal Events

Date Code Title Description
ST Notification of lapse