JPS57135804A - Saponification of polyvinyl ester resin - Google Patents
Saponification of polyvinyl ester resinInfo
- Publication number
- JPS57135804A JPS57135804A JP2074281A JP2074281A JPS57135804A JP S57135804 A JPS57135804 A JP S57135804A JP 2074281 A JP2074281 A JP 2074281A JP 2074281 A JP2074281 A JP 2074281A JP S57135804 A JPS57135804 A JP S57135804A
- Authority
- JP
- Japan
- Prior art keywords
- ion exchange
- exchange resin
- polyvinyl ester
- saponificate
- ester resin
- 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
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To effectively form a high-quality polyvinyl ester resin saponificate (especially, a saponificate with a low degree of saponification) free form a salt such as sodium acetate, by carrying out the saponfication by use of an ion exchange resin.
CONSTITUTION: An ion exchange resin[an OH type ion exchange resin (pref., Duolite A-101D, Chemical Process Corp.)]is added to a solution of a polyvinyl ester resin (e.g., vinyl acetate (co)polymer) in a lower alcohol (e.g., methanol or butanol), and the mixture is agitated and separated from the ion exchange resin. The alcohol is vaporized from the resulting solution to obtain the desired saponificate.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2074281A JPS57135804A (en) | 1981-02-13 | 1981-02-13 | Saponification of polyvinyl ester resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2074281A JPS57135804A (en) | 1981-02-13 | 1981-02-13 | Saponification of polyvinyl ester resin |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57135804A true JPS57135804A (en) | 1982-08-21 |
JPS6356247B2 JPS6356247B2 (en) | 1988-11-07 |
Family
ID=12035641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2074281A Granted JPS57135804A (en) | 1981-02-13 | 1981-02-13 | Saponification of polyvinyl ester resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57135804A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995012625A2 (en) * | 1993-11-01 | 1995-05-11 | E.I. Du Pont De Nemours And Company | Removal of base residues from poly(vinyl alcohol) reaction-slurries |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4842621A (en) * | 1971-09-29 | 1973-06-21 | ||
JPS4842681A (en) * | 1971-09-29 | 1973-06-21 |
-
1981
- 1981-02-13 JP JP2074281A patent/JPS57135804A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4842621A (en) * | 1971-09-29 | 1973-06-21 | ||
JPS4842681A (en) * | 1971-09-29 | 1973-06-21 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995012625A2 (en) * | 1993-11-01 | 1995-05-11 | E.I. Du Pont De Nemours And Company | Removal of base residues from poly(vinyl alcohol) reaction-slurries |
WO1995012625A3 (en) * | 1993-11-01 | 1995-06-15 | Du Pont | Removal of base residues from poly(vinyl alcohol) reaction-slurries |
Also Published As
Publication number | Publication date |
---|---|
JPS6356247B2 (en) | 1988-11-07 |
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