SE8101127L - PLASMPHORESMEMBRANE AND PROCEDURES FOR PRODUCING THEREOF - Google Patents
PLASMPHORESMEMBRANE AND PROCEDURES FOR PRODUCING THEREOFInfo
- Publication number
- SE8101127L SE8101127L SE8101127A SE8101127A SE8101127L SE 8101127 L SE8101127 L SE 8101127L SE 8101127 A SE8101127 A SE 8101127A SE 8101127 A SE8101127 A SE 8101127A SE 8101127 L SE8101127 L SE 8101127L
- Authority
- SE
- Sweden
- Prior art keywords
- precipitation bath
- weight
- jet
- solution
- membrane
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000001556 precipitation Methods 0.000 abstract 4
- 239000012528 membrane Substances 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 238000009987 spinning Methods 0.000 abstract 2
- 239000000654 additive Substances 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 abstract 1
- 210000002421 cell wall Anatomy 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 230000001112 coagulating effect Effects 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000004014 plasticizer Substances 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/04—Tubular membranes
-
- 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
- B01D67/0002—Organic membrane manufacture
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0011—Casting solutions therefor
-
- 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
- B01D67/0002—Organic membrane manufacture
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0016—Coagulation
-
- 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
- B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/06—Flat membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
- B01D69/087—Details relating to the spinning process
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Artificial Filaments (AREA)
- External Artificial Organs (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
A process for the production of a membrane which comprises forcing a spinning solution comprising from 8 to 25%, by weight, of one or more cellulose esters, from 55 to 92%, by weight, of one or more solvents and optionally up to 20%, by weight, of one or more other additives through a spinning jet immersed in a precipitation bath, exposing the jet of solution to the coagulating effect of the precipitation bath at the boundaries of the jet over a section of precipitation bath which is at least 30 cm long, guiding the coagulated material out of the precipitation bath, washing with water until free from solvent, impregnating with plasticiser solution and drying is disclosed. The present invention also relates to a membrane which comprises distinct, substantially parallelepipedic closed cells juxtaposed to form a honeycomb-like structure all the cell walls having a plurality of holes as pores.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3006880A DE3006880C2 (en) | 1980-02-23 | 1980-02-23 | Plasmaphoresis membrane |
Publications (1)
Publication Number | Publication Date |
---|---|
SE8101127L true SE8101127L (en) | 1981-08-24 |
Family
ID=6095424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8101127A SE8101127L (en) | 1980-02-23 | 1981-02-20 | PLASMPHORESMEMBRANE AND PROCEDURES FOR PRODUCING THEREOF |
Country Status (13)
Country | Link |
---|---|
JP (1) | JPS56134209A (en) |
AT (1) | AT381237B (en) |
BE (1) | BE887603A (en) |
CA (1) | CA1184716A (en) |
CH (1) | CH647419A5 (en) |
DE (1) | DE3006880C2 (en) |
ES (2) | ES8201432A1 (en) |
FR (1) | FR2476500B1 (en) |
GB (1) | GB2069925B (en) |
IT (1) | IT1170741B (en) |
LU (1) | LU83157A1 (en) |
NL (1) | NL8100701A (en) |
SE (1) | SE8101127L (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3042110A1 (en) * | 1980-11-07 | 1982-06-16 | Akzo Gmbh, 5600 Wuppertal | MICROPOROUS CELLULOSE MEMBRANE |
SE429441B (en) * | 1982-04-30 | 1983-09-05 | Gambro Dialysatoren | MICROPOROST HALFIBERMENBRAN FOR PLASMAFERES, AS WELL AS MANUFACTURING THE MEMBRANE |
JPS60806A (en) * | 1983-06-17 | 1985-01-05 | Teijin Ltd | Manufacture of plasma albumin permeable hollow yarn membrane |
JPS61106168A (en) * | 1984-10-30 | 1986-05-24 | 帝人株式会社 | Permselective hollow yarn membrane, its production and serum component separator using the same |
JPS61293469A (en) * | 1985-06-21 | 1986-12-24 | 帝人株式会社 | Permselective hollow yarn membrane and serum component separator using the same |
DE3842822A1 (en) * | 1988-12-20 | 1990-07-05 | Akzo Gmbh | BIOCOMPATIBLE DIALYSIS MEMBRANE FROM A MIXED POLYSACCHARIDESTER |
EP0570826A1 (en) * | 1992-05-20 | 1993-11-24 | Akzo Nobel N.V. | Cellulose acetate membrane |
EP0574699A2 (en) * | 1992-05-20 | 1993-12-22 | Akzo Nobel N.V. | Cellulose acetate dialysis membrane |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3709774A (en) * | 1970-05-13 | 1973-01-09 | Gen Electric | Preparation of asymmetric polymer membranes |
US3724672A (en) * | 1970-07-27 | 1973-04-03 | R Leonard | Asymmetric hollow fiber membranes and method of fabrication |
US3876738A (en) * | 1973-07-18 | 1975-04-08 | Amf Inc | Process for producing microporous films and products |
JPS5193786A (en) * | 1975-02-15 | 1976-08-17 | Makurokagatano chukuseni | |
JPS5289574A (en) * | 1976-01-23 | 1977-07-27 | Daicel Chem Ind Ltd | Production of hollow filament used for separation |
JPS6028522B2 (en) * | 1975-03-27 | 1985-07-05 | ダイセル化学工業株式会社 | Manufacturing method of hollow fiber for separation |
US4127625A (en) * | 1975-03-27 | 1978-11-28 | Daicel Ltd. | Process for preparing hollow fiber having selective gas permeability |
JPS5255719A (en) * | 1975-10-31 | 1977-05-07 | Daicel Chem Ind Ltd | Hollow fibers having selective gas permeability and production thereof |
GB1566581A (en) * | 1975-12-29 | 1980-05-08 | Nippon Zeon Co | Hollow fibres and methods of manufacturing such fibres |
FR2410501A1 (en) * | 1976-11-15 | 1979-06-29 | Monsanto Co | MULTI-COMPONENT MEMBRANES FOR GAS SEPARATIONS |
JPS546916A (en) * | 1977-06-20 | 1979-01-19 | Asahi Chem Ind Co Ltd | Hollow cellulose fibers and their production |
JPS5411322A (en) * | 1977-06-29 | 1979-01-27 | Asahi Chem Ind Co Ltd | Hollow cellulose fibers and their production |
-
1980
- 1980-02-23 DE DE3006880A patent/DE3006880C2/en not_active Expired
-
1981
- 1981-02-05 CH CH765/81A patent/CH647419A5/en not_active IP Right Cessation
- 1981-02-13 NL NL8100701A patent/NL8100701A/en not_active Application Discontinuation
- 1981-02-20 GB GB8105455A patent/GB2069925B/en not_active Expired
- 1981-02-20 ES ES499623A patent/ES8201432A1/en not_active Expired
- 1981-02-20 IT IT47856/81A patent/IT1170741B/en active
- 1981-02-20 SE SE8101127A patent/SE8101127L/en not_active Application Discontinuation
- 1981-02-20 BE BE0/203854A patent/BE887603A/en not_active IP Right Cessation
- 1981-02-20 CA CA000371435A patent/CA1184716A/en not_active Expired
- 1981-02-20 FR FR8103456A patent/FR2476500B1/en not_active Expired
- 1981-02-20 LU LU83157A patent/LU83157A1/en unknown
- 1981-02-20 ES ES1981267109U patent/ES267109Y/en not_active Expired
- 1981-02-23 JP JP2440481A patent/JPS56134209A/en active Granted
- 1981-02-23 AT AT0082481A patent/AT381237B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPS56134209A (en) | 1981-10-20 |
ATA82481A (en) | 1986-02-15 |
BE887603A (en) | 1981-06-15 |
CA1184716A (en) | 1985-04-02 |
GB2069925B (en) | 1983-08-10 |
NL8100701A (en) | 1981-09-16 |
DE3006880C2 (en) | 1986-10-09 |
ES267109Y (en) | 1983-08-16 |
AT381237B (en) | 1986-09-10 |
CH647419A5 (en) | 1985-01-31 |
LU83157A1 (en) | 1981-06-05 |
JPH035847B2 (en) | 1991-01-28 |
ES499623A0 (en) | 1981-12-16 |
ES267109U (en) | 1983-02-16 |
IT8147856A0 (en) | 1981-02-20 |
GB2069925A (en) | 1981-09-03 |
IT1170741B (en) | 1987-06-03 |
ES8201432A1 (en) | 1981-12-16 |
DE3006880A1 (en) | 1981-09-03 |
FR2476500B1 (en) | 1988-11-25 |
FR2476500A1 (en) | 1981-08-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
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