JPS647914A - Production of permselective hollow yarn - Google Patents
Production of permselective hollow yarnInfo
- Publication number
- JPS647914A JPS647914A JP16223187A JP16223187A JPS647914A JP S647914 A JPS647914 A JP S647914A JP 16223187 A JP16223187 A JP 16223187A JP 16223187 A JP16223187 A JP 16223187A JP S647914 A JPS647914 A JP S647914A
- Authority
- JP
- Japan
- Prior art keywords
- hollow yarn
- saponification
- thickness
- blood
- yarn
- 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
- 238000007127 saponification reaction Methods 0.000 abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 210000004369 blood Anatomy 0.000 abstract 3
- 239000008280 blood Substances 0.000 abstract 3
- 239000012528 membrane Substances 0.000 abstract 3
- 102000015736 beta 2-Microglobulin Human genes 0.000 abstract 2
- 108010081355 beta 2-Microglobulin Proteins 0.000 abstract 2
- 238000000502 dialysis Methods 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 229920001747 Cellulose diacetate Polymers 0.000 abstract 1
- 239000002202 Polyethylene glycol Substances 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000003112 inhibitor Substances 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 210000003924 normoblast Anatomy 0.000 abstract 1
- 239000004014 plasticizer Substances 0.000 abstract 1
- 229920001223 polyethylene glycol Polymers 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
Landscapes
- External Artificial Organs (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Artificial Filaments (AREA)
Abstract
PURPOSE:To produce the title permselective hollow yarn appropriate for the purification of blood to remove harmful substances such as beta2-microglobulin in the intermediate mol.wt. region by saponifying the hollow yarn so that the difference in the thickness between the hollow yarn membranes when moistened before and after saponification is controlled to a specified value. CONSTITUTION:A plasticizer such as polyethylene glycol is added to cellulose diacetate, the mixture is melted, the melt is spun from a spinneret for hollow yarn, and the yarn is dipped in an aq. alkaline soln. of sodium hydroxide, etc., and saponified. In this case, the saponification is carried out at <=60 deg.C, and the ratio t1/t2 of the thickness t1 of the hollow yarn membrane when moistened before saponification to the thickness t2 of the hollow yarn membrane when moistened after saponification is controlled to >=1.1. The permselective hollow yarn thus obtained and consisting of a cellulose ester is appropriately used for removing harmful substances such as beta2-microglobulin and an erythroblast inhibitor in the intermediate mol.wt. region in the blood dialysis, filtration and dialysis of blood, etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16223187A JPS647914A (en) | 1987-07-01 | 1987-07-01 | Production of permselective hollow yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16223187A JPS647914A (en) | 1987-07-01 | 1987-07-01 | Production of permselective hollow yarn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS647914A true JPS647914A (en) | 1989-01-11 |
Family
ID=15750463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16223187A Pending JPS647914A (en) | 1987-07-01 | 1987-07-01 | Production of permselective hollow yarn |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS647914A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006129987A (en) * | 2004-11-04 | 2006-05-25 | Toray Ind Inc | Hollow fiber membrane separation membrane, method for producing the same and method for using the same |
| US7434815B2 (en) | 2004-10-08 | 2008-10-14 | Sunwa Ltd. | Stair climbing wheelchair carrier |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5580516A (en) * | 1978-12-14 | 1980-06-17 | Mitsubishi Rayon Co Ltd | Regenerated cellulose hollow fiber |
| JPS5584412A (en) * | 1978-12-20 | 1980-06-25 | Nippon Zeon Co Ltd | Production of hollow fiber |
| JPS5759550A (en) * | 1980-09-26 | 1982-04-09 | Mitsubishi Rayon Co | Hollow fiber for dialysis |
-
1987
- 1987-07-01 JP JP16223187A patent/JPS647914A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5580516A (en) * | 1978-12-14 | 1980-06-17 | Mitsubishi Rayon Co Ltd | Regenerated cellulose hollow fiber |
| JPS5584412A (en) * | 1978-12-20 | 1980-06-25 | Nippon Zeon Co Ltd | Production of hollow fiber |
| JPS5759550A (en) * | 1980-09-26 | 1982-04-09 | Mitsubishi Rayon Co | Hollow fiber for dialysis |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7434815B2 (en) | 2004-10-08 | 2008-10-14 | Sunwa Ltd. | Stair climbing wheelchair carrier |
| JP2006129987A (en) * | 2004-11-04 | 2006-05-25 | Toray Ind Inc | Hollow fiber membrane separation membrane, method for producing the same and method for using the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU7147981A (en) | Cellulose dialysis membrane | |
| ATE62027T1 (en) | PROCESS FOR SPINNING HOLLOW FIBER MEMBRANES. | |
| JPS56307A (en) | Hollow membrane of high polymer, its production and nozzle for producing the same | |
| US4284594A (en) | Method of manufacturing hollow fiber | |
| EP0242529A3 (en) | Process for the preparation of water absorbent and water-swellable polysaccharide graft polymers | |
| JPS647914A (en) | Production of permselective hollow yarn | |
| EP0745423A3 (en) | Improved process for making cellulose acetate semipermeable membranes and medical products therefrom | |
| US4219517A (en) | Process for spinning dense hollow fiber cellulosic membrane | |
| JPS56148907A (en) | Hollow fiber | |
| US4240796A (en) | Method of treating capillary fibers | |
| JPS56148908A (en) | Hollow fiber | |
| JPS5580516A (en) | Regenerated cellulose hollow fiber | |
| JPS57206378A (en) | Filtering method of sake | |
| JPS569419A (en) | Method of hydrolysis of cellulose ester hollow fiber | |
| JPS57143510A (en) | Production of high-flux hollow fiber regenerated from cuprammonium cellulose | |
| JPS5319423A (en) | Production of hollow fiber membranes | |
| JPS5390367A (en) | Preparation of hollow fiber membrane | |
| JPS54131025A (en) | Production of hollow cellulose derivative fibers | |
| JPS569420A (en) | Method of production of hollow fiber | |
| JPS57135009A (en) | Preparation of regenerated cellulose film with selective permeability | |
| JPS60110305A (en) | Hollow fiber film and body fluid treating device using the same | |
| JPS54151616A (en) | Production of hollow fibers | |
| JPH0523554A (en) | Cellulose hollow fiber | |
| JPS55112309A (en) | Production of hollow fiber | |
| JPS5584411A (en) | Regenerated cellulose fiber |