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
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/en
Priority to DE19752505254 priority patent/DE2505254A1/en
Priority to IT47727/76A priority patent/IT1053401B/en
Priority to FR7601674A priority patent/FR2298570A1/en
Priority to JP707176A priority patent/JPS5723698B2/ja
Priority to GB2729/76A priority patent/GB1504261A/en
Publication of CH614127A5 publication Critical patent/CH614127A5/en

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Transplantation (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)
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 (en) 1975-01-23 1975-02-07 POROESE MEMBRANE AND METHOD FOR MANUFACTURING IT
IT47727/76A IT1053401B (en) 1975-01-23 1976-01-21 POROUS MEMBRANE AND PROCEDURE TO PREPARE IT
FR7601674A FR2298570A1 (en) 1975-01-23 1976-01-22 POROUS MEMBRANE AND PROCESS FOR PRODUCING THIS MEMBRANE
JP707176A JPS5723698B2 (en) 1975-01-23 1976-01-23
GB2729/76A GB1504261A (en) 1975-01-23 1976-01-23 Porous membrane and a process for its production

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 (en)
CH (1) CH614127A5 (en)
DE (1) DE2505254A1 (en)
FR (1) FR2298570A1 (en)
GB (1) GB1504261A (en)
IT (1) IT1053401B (en)

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 (en) * 1980-06-04 1982-05-12 Ciba-Geigy Ag Stable concentrated liquid preparations of non metalliferous dyes, their preparation process and their use
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 (en) * 1981-03-06 1986-05-21 Ciba-Geigy Ag Process for producing concentrated aqueous dyestuff preparations of anionic paper or wool dyes
CH652313A5 (en) * 1981-08-25 1985-11-15 Ciba Geigy Ag METHOD FOR PRODUCING CONCENTRATED AQUEOUS PREPARATIONS OF SYNTHETIC ANIONIC DISPERGERS.
CH647021A5 (en) * 1981-09-22 1984-12-28 Ciba Geigy Ag METHOD FOR PRODUCING STORAGE-STABLE BRIGHTENER FORMULATIONS.
CH648583A5 (en) * 1981-09-29 1985-03-29 Ciba Geigy Ag METHOD FOR THE PRODUCTION OF STORAGE-STABLE DYE PREPARATIONS.
CH654424A5 (en) * 1983-03-25 1986-02-14 Ciba Geigy Ag METHOD FOR PREVENTING THE GELLING OF CONCENTRATED AQUEOUS PHOTOACTIVATOR SOLUTIONS.
JPS59182861A (en) * 1983-04-01 1984-10-17 Canon Inc Apparatus for purification of dye
JPS59182863A (en) * 1983-04-01 1984-10-17 Canon Inc Apparatus for purification of dye
JPS59182862A (en) * 1983-04-01 1984-10-17 Canon Inc Apparatus for purification of dye
EP1200179B8 (en) * 1999-07-30 2007-02-21 Genentech, Inc. Charged filtration membranes and uses therefor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2419930A1 (en) * 1973-04-30 1974-11-07 Dorr Oliver Inc ULTRAFILTRATION MEMBRANE AND METHOD OF MANUFACTURING THEREOF
JPS5210670B2 (en) * 1973-05-16 1977-03-25
DE2437594A1 (en) * 1974-08-05 1976-02-26 Riedel De Haen Ag Azo contg. cellulosic ion exchange resins

Also Published As

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

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Legal Events

Date Code Title Description
PL Patent ceased