CS275541B2 - Method of impurities removal from polyvinylalkohol's aqueous solutions - Google Patents
Method of impurities removal from polyvinylalkohol's aqueous solutionsInfo
- Publication number
- CS275541B2 CS275541B2 CS645389A CS645389A CS275541B2 CS 275541 B2 CS275541 B2 CS 275541B2 CS 645389 A CS645389 A CS 645389A CS 645389 A CS645389 A CS 645389A CS 275541 B2 CS275541 B2 CS 275541B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- polyvinylalkohol
- aqueous solutions
- impurities removal
- impurities
- removal
- Prior art date
Links
- 239000007864 aqueous solution Substances 0.000 title 1
- 239000012535 impurity Substances 0.000 title 1
- 229920002451 polyvinyl alcohol Polymers 0.000 title 1
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS645389A CS275541B2 (en) | 1989-11-15 | 1989-11-15 | Method of impurities removal from polyvinylalkohol's aqueous solutions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS645389A CS275541B2 (en) | 1989-11-15 | 1989-11-15 | Method of impurities removal from polyvinylalkohol's aqueous solutions |
Publications (1)
Publication Number | Publication Date |
---|---|
CS275541B2 true CS275541B2 (en) | 1992-02-19 |
Family
ID=5411604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CS645389A CS275541B2 (en) | 1989-11-15 | 1989-11-15 | Method of impurities removal from polyvinylalkohol's aqueous solutions |
Country Status (1)
Country | Link |
---|---|
CS (1) | CS275541B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994029357A1 (en) * | 1993-06-04 | 1994-12-22 | E.I. Du Pont De Nemours And Company | Process for removal of ash-producing residues from vinyl(alcohol)polymers |
WO1995012625A3 (en) * | 1993-11-01 | 1995-06-15 | Du Pont | Removal of base residues from poly(vinyl alcohol) reaction-slurries |
CN115490787A (en) * | 2022-09-15 | 2022-12-20 | 山东海科创新研究院有限公司 | A method for removing salt impurities in ethylene-vinyl alcohol copolymer |
-
1989
- 1989-11-15 CS CS645389A patent/CS275541B2/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994029357A1 (en) * | 1993-06-04 | 1994-12-22 | E.I. Du Pont De Nemours And Company | Process for removal of ash-producing residues from vinyl(alcohol)polymers |
WO1995012625A3 (en) * | 1993-11-01 | 1995-06-15 | Du Pont | Removal of base residues from poly(vinyl alcohol) reaction-slurries |
CN115490787A (en) * | 2022-09-15 | 2022-12-20 | 山东海科创新研究院有限公司 | A method for removing salt impurities in ethylene-vinyl alcohol copolymer |
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