JPS5571815A - Production of ultra-fine fiber having metal chelating ability - Google Patents
Production of ultra-fine fiber having metal chelating abilityInfo
- Publication number
- JPS5571815A JPS5571815A JP14354778A JP14354778A JPS5571815A JP S5571815 A JPS5571815 A JP S5571815A JP 14354778 A JP14354778 A JP 14354778A JP 14354778 A JP14354778 A JP 14354778A JP S5571815 A JPS5571815 A JP S5571815A
- Authority
- JP
- Japan
- Prior art keywords
- ultra
- fibers
- polyvinyl alcohol
- fine
- production
- 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.)
- Granted
Links
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
PURPOSE: To increase the surface area of fibers and the amount of chelating functional groups to be introduced, by calcining ultra-fine polyvinyl alcohol fibers in the presence of a dehydration catalyst under specific conditions.
CONSTITUTION: Ultra-fine polyvinyl alcohol fibers having a filament diameter≤1μ are calcined in the presence of a dehydration catalyst, preferably ammonium polyphosphate of the formula (n is 10W400) at 80W250°C for 10W180min to give ultra-fine fibers with a weight loss of 5W25%. Chelating functional groups, e.g. mercapto groups, are introduced to form the objective fibers. For example, an aqueous solution of (A) completely saponified polyvinyl alcohol having an average polymerization degree of 800W3,000, and (B) an amorphous polymer, e.g. polyethylene oxide, is dry spun and rinsed with water to remove the polymer (B).
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14354778A JPS5571815A (en) | 1978-11-22 | 1978-11-22 | Production of ultra-fine fiber having metal chelating ability |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14354778A JPS5571815A (en) | 1978-11-22 | 1978-11-22 | Production of ultra-fine fiber having metal chelating ability |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5571815A true JPS5571815A (en) | 1980-05-30 |
JPS625178B2 JPS625178B2 (en) | 1987-02-03 |
Family
ID=15341276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14354778A Granted JPS5571815A (en) | 1978-11-22 | 1978-11-22 | Production of ultra-fine fiber having metal chelating ability |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5571815A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5314922A (en) * | 1990-11-19 | 1994-05-24 | Daiwabo Create Co., Ltd. | Ion exchange fibers and method for manufacturing the same |
JP2019200230A (en) * | 2018-05-14 | 2019-11-21 | 北川工業株式会社 | Manufacturing method for plant-derived black powder and manufacturing method for resin composition |
-
1978
- 1978-11-22 JP JP14354778A patent/JPS5571815A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5314922A (en) * | 1990-11-19 | 1994-05-24 | Daiwabo Create Co., Ltd. | Ion exchange fibers and method for manufacturing the same |
JP2019200230A (en) * | 2018-05-14 | 2019-11-21 | 北川工業株式会社 | Manufacturing method for plant-derived black powder and manufacturing method for resin composition |
Also Published As
Publication number | Publication date |
---|---|
JPS625178B2 (en) | 1987-02-03 |
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