CH614127A5 - Porous membrane and method for production thereof - Google Patents

Porous membrane and method for production thereof

Info

Publication number
CH614127A5
CH614127A5 CH82775A CH82775A CH614127A5 CH 614127 A5 CH614127 A5 CH 614127A5 CH 82775 A CH82775 A CH 82775A CH 82775 A CH82775 A CH 82775A CH 614127 A5 CH614127 A5 CH 614127A5
Authority
CH
Switzerland
Prior art keywords
production
porous membrane
porous
membrane
Prior art date
Application number
CH82775A
Other languages
English (en)
Inventor
Rene Dr Bloch
Jacov Dr Yonath
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
Priority to CH82775A priority Critical patent/CH614127A5/xx
Priority to DE19752505254 priority patent/DE2505254A1/de
Priority to IT47727/76A priority patent/IT1053401B/it
Priority to FR7601674A priority patent/FR2298570A1/fr
Priority to GB2729/76A priority patent/GB1504261A/en
Priority to JP707176A priority patent/JPS5723698B2/ja
Publication of CH614127A5 publication Critical patent/CH614127A5/xx

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
    • B01D67/0081—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
    • 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
CH82775A 1975-01-23 1975-01-23 Porous membrane and method for production thereof CH614127A5 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH82775A CH614127A5 (en) 1975-01-23 1975-01-23 Porous membrane and method for production thereof
DE19752505254 DE2505254A1 (de) 1975-01-23 1975-02-07 Poroese membran und verfahren zu ihrer herstellung
IT47727/76A IT1053401B (it) 1975-01-23 1976-01-21 Membrana porosa e procedimento per prepararla
FR7601674A FR2298570A1 (fr) 1975-01-23 1976-01-22 Membrane poreuse et procede de production de cette membrane
GB2729/76A GB1504261A (en) 1975-01-23 1976-01-23 Porous membrane and a process for its production
JP707176A JPS5723698B2 (de) 1975-01-23 1976-01-23

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 (1)

Publication Number Publication Date
CH614127A5 true CH614127A5 (en) 1979-11-15

Family

ID=4196116

Family Applications (1)

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

Country Status (6)

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

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3066996D1 (en) * 1979-09-19 1984-04-19 Aligena Ag Porous semipermeable cellulose acetate membranes modified by ionic groups, process for their production and their use
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
EP0059782B1 (de) * 1981-03-06 1986-05-21 Ciba-Geigy Ag Verfahren zur Herstellung konzentrierter wässriger Farbstoffpräparate von anionischen Papier- oder Wollfarbstoffen
ZA816730B (en) * 1981-03-06 1982-10-27 Ciba Geigy Process for the preparation of concentrated aqueous compositions of anionic dyes
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.
CH648583A5 (de) * 1981-09-29 1985-03-29 Ciba Geigy Ag Verfahren zur herstellung von lagerstabilen farbstoffpraeparaten.
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
DE60028210T2 (de) * 1999-07-30 2007-03-08 Genentech, Inc., South San Francisco Geladene filtrationmembranen und deren verwendungen

Family Cites Families (3)

* 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
JPS5210670B2 (de) * 1973-05-16 1977-03-25
DE2437594A1 (de) * 1974-08-05 1976-02-26 Riedel De Haen Ag Ionenaustauscher auf cellulosebasis und verfahren zu seiner herstellung

Also Published As

Publication number Publication date
JPS5723698B2 (de) 1982-05-20
FR2298570A1 (fr) 1976-08-20
IT1053401B (it) 1981-08-31
FR2298570B1 (de) 1979-02-02
DE2505254C2 (de) 1987-11-19
GB1504261A (en) 1978-03-15
DE2505254A1 (de) 1976-07-29
JPS5199695A (de) 1976-09-02

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Legal Events

Date Code Title Description
PL Patent ceased