JPS5571812A - Production of hollow fiber - Google Patents
Production of hollow fiberInfo
- Publication number
- JPS5571812A JPS5571812A JP14633378A JP14633378A JPS5571812A JP S5571812 A JPS5571812 A JP S5571812A JP 14633378 A JP14633378 A JP 14633378A JP 14633378 A JP14633378 A JP 14633378A JP S5571812 A JPS5571812 A JP S5571812A
- Authority
- JP
- Japan
- Prior art keywords
- alkyl
- cellulose ester
- swelling agent
- integer
- solvent
- 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.)
- Pending
Links
- 239000012510 hollow fiber Substances 0.000 title abstract 3
- 125000000217 alkyl group Chemical group 0.000 abstract 3
- 229920002678 cellulose Polymers 0.000 abstract 3
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 3
- 230000008961 swelling Effects 0.000 abstract 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- SBASXUCJHJRPEV-UHFFFAOYSA-N 2-(2-methoxyethoxy)ethanol Chemical compound COCCOCCO SBASXUCJHJRPEV-UHFFFAOYSA-N 0.000 abstract 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 230000000996 additive effect Effects 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 1
- 239000010452 phosphate Substances 0.000 abstract 1
- 150000004040 pyrrolidinones Chemical class 0.000 abstract 1
- 238000005185 salting out Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 238000009987 spinning Methods 0.000 abstract 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Artificial Filaments (AREA)
Abstract
PURPOSE: To obtain hollow fibers having a high strength and selective permeability, without forming huge voids, by introducing a specific core liquid into the hollow part of a filamentary material extruded from a cellulose ester solution containing a specific additive as a swelling agent.
CONSTITUTION: A cellulose ester is dissolved in a mixture of a solvent, e.g. dimethyl sulfoxide, and (a) a compound of the formula [R1 is 1W4C alkyl; R2 is H, 1W4C alkyl, or COR3 (R3 is 1W6C alkyl); n is an integer 2W4; m is an integer 1W3], e.g. Methyl Carbitol, and (b) a trialkyl phosphate, (c) 2-methylpyrrolidone, and/or (d) a pyrrolidone derivative as a swelling agent. The spinning solution thus obtained is extruded through an annular slit into a filamentary material, and a core liquid consisting of (e) a solvent and/or a swelling agent for the cellulose ester, or (f) an aqueous solution of a salt having the salting out effect is introduced into the hollow part of the material to form hollow fibers.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14633378A JPS5571812A (en) | 1978-11-27 | 1978-11-27 | Production of hollow fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14633378A JPS5571812A (en) | 1978-11-27 | 1978-11-27 | Production of hollow fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5571812A true JPS5571812A (en) | 1980-05-30 |
Family
ID=15405306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14633378A Pending JPS5571812A (en) | 1978-11-27 | 1978-11-27 | Production of hollow fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5571812A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2318760B (en) * | 1995-09-14 | 2000-05-17 | Secr Defence | Hollow fibres and method of manufacture therefor |
| WO2020260473A1 (en) * | 2019-06-27 | 2020-12-30 | Sartorius Stedim Biotech Gmbh | Combination of pyrrolidone based solvents for the production of porous membranes |
-
1978
- 1978-11-27 JP JP14633378A patent/JPS5571812A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2318760B (en) * | 1995-09-14 | 2000-05-17 | Secr Defence | Hollow fibres and method of manufacture therefor |
| WO2020260473A1 (en) * | 2019-06-27 | 2020-12-30 | Sartorius Stedim Biotech Gmbh | Combination of pyrrolidone based solvents for the production of porous membranes |
| EP3756753A1 (en) * | 2019-06-27 | 2020-12-30 | Sartorius Stedim Biotech GmbH | Combination of pyrrolidone based solvents for the production of porous membranes |
| CN114096343A (en) * | 2019-06-27 | 2022-02-25 | 赛多利斯司特蒂姆生物工艺公司 | Combination of pyrrolidone-based solvents for the preparation of porous membranes |
| US12226738B2 (en) | 2019-06-27 | 2025-02-18 | Sartorius Stedim Biotech Gmbh | Combination of pyrrolidone based solvents for the production of porous membranes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE18863T1 (en) | PROCESS FOR PRODUCTION OF FREE-FLOWING ETHYL CELLULOSE MICROCAPSULES. | |
| AT368150B (en) | METHOD FOR THE PRODUCTION OF NEW ETHERS | |
| JPS5571812A (en) | Production of hollow fiber | |
| YU45854B (en) | PROCESS FOR PREPARATION OF (+) ENANTHIOMERIC OR (+ -) RACEM DERIVATIVES 4A, 9B-TRANSHEXAHYDRO-1H-PYRIDOINDOLE | |
| DD137224A5 (en) | PROCESS FOR THE PREPARATION OF NEW TO NITROSOUREIDO POLYOL DERIVATIVES | |
| JPS5571813A (en) | Production of hollow fiber | |
| AR222510A1 (en) | NEW DERIVATIVES OF 1,3,4-TIADIZOL-2-CARBOXYL ACID, PROCEDURES FOR PRODUCING THEM AND FUNGICID AND NEMATODICIDE COMPOSITIONS CONTAINING THEM | |
| JPS5571808A (en) | Production of cellulose hollow | |
| SE7701218L (en) | PROCEDURE FOR PREPARING A CLEAR, STABLE, INJECTIBLE SOLUTION, CONTAINING A SULPHONAMIDE AND A PATENTIATOR | |
| JPS5526262A (en) | Production of hollow fiber of cellulosic derivative with high permeselectivity | |
| JPS5580515A (en) | Production of hollow fiber | |
| JPS54131025A (en) | Production of hollow cellulose derivative fibers | |
| JPS5378323A (en) | Production of hollow acrylonitrile fibers | |
| JPS57149509A (en) | Preparation of hollow separating membrane | |
| JPS5643415A (en) | Production of hollow fiber | |
| ES2068520T3 (en) | IMPROVED METHOD FOR THE PREPARATION OF DERIVATIVES AND INTERMEDIATE COMPOUNDS OF 4-METILSULFONILBENZOICO ACID. | |
| JPS5319423A (en) | Production of hollow fiber membranes | |
| ES485157A1 (en) | Benzimidazolyl-2-carbamic acid esters, medicaments based thereon and process for their preparation. | |
| JPS53126319A (en) | Production of dried hollow fiber with selective permeability | |
| JPS5643414A (en) | Production of hollow fiber | |
| JPS5696910A (en) | Preparation of hollow fiber | |
| JPS5424040A (en) | Optical fiber cable and method and apparatus for production of the same | |
| JPS5643416A (en) | Production of hollow fiber | |
| JPS51141855A (en) | Process for preparing exo-hydroxy-endo-tricyclo-(5,2,2,02,6)undecane | |
| JPS569420A (en) | Method of production of hollow fiber |