JPS559635A - Production of saponified product of ethylene-vinyl acetate compolymer - Google Patents
Production of saponified product of ethylene-vinyl acetate compolymerInfo
- Publication number
- JPS559635A JPS559635A JP8197078A JP8197078A JPS559635A JP S559635 A JPS559635 A JP S559635A JP 8197078 A JP8197078 A JP 8197078A JP 8197078 A JP8197078 A JP 8197078A JP S559635 A JPS559635 A JP S559635A
- Authority
- JP
- Japan
- Prior art keywords
- vinyl acetate
- ethylene
- copolymer
- saponification
- 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.)
- Pending
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: The saponification of an ethylene-vinyl acetate compolymer is effected in a lower alcohol medium containing a specific aromatic hydrocarbon in the presence of an alkali catalyst, thus effecting uniform saponification even inside the polymer and producing title high-transparency product.
CONSTITUTION: To an ethylene-vinyl acetate copolymer of less than 70 wt% vinyl acetate content and 0.1W500 g/min MI are added a lower alcohol containing 5W50 wt% of a 6W9C aromatic hydrocarbon as benzene or toluene in an amount of 0.5W 10 times the amount of the copolymer and the saponification is effected in the presence of 1W40 wt%, based on the copolymer, of an alkaline catalyst at 40W100° C so that the original shape of the copolymer is kept.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8197078A JPS559635A (en) | 1978-07-07 | 1978-07-07 | Production of saponified product of ethylene-vinyl acetate compolymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8197078A JPS559635A (en) | 1978-07-07 | 1978-07-07 | Production of saponified product of ethylene-vinyl acetate compolymer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS559635A true JPS559635A (en) | 1980-01-23 |
Family
ID=13761345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8197078A Pending JPS559635A (en) | 1978-07-07 | 1978-07-07 | Production of saponified product of ethylene-vinyl acetate compolymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS559635A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0145928A2 (en) * | 1983-11-07 | 1985-06-26 | Takeda Chemical Industries, Ltd. | Resin from saponified ethylene-vinyl acetate copolymers, production and use thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2386347A (en) * | 1945-02-13 | 1945-10-09 | Du Pont | Interpolymers of ethylene with vinyl esters and products therefrom |
US3386978A (en) * | 1964-03-30 | 1968-06-04 | Monsanto Res Corp | Preparation of hydrolyzed ethylene/vinyl acetate copolymer |
US3510463A (en) * | 1967-11-20 | 1970-05-05 | Du Pont | Suspension alcoholysis of pelleted ethylene/vinyl ester copolymers |
-
1978
- 1978-07-07 JP JP8197078A patent/JPS559635A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2386347A (en) * | 1945-02-13 | 1945-10-09 | Du Pont | Interpolymers of ethylene with vinyl esters and products therefrom |
US3386978A (en) * | 1964-03-30 | 1968-06-04 | Monsanto Res Corp | Preparation of hydrolyzed ethylene/vinyl acetate copolymer |
US3510463A (en) * | 1967-11-20 | 1970-05-05 | Du Pont | Suspension alcoholysis of pelleted ethylene/vinyl ester copolymers |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0145928A2 (en) * | 1983-11-07 | 1985-06-26 | Takeda Chemical Industries, Ltd. | Resin from saponified ethylene-vinyl acetate copolymers, production and use thereof |
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