JPS5647404A - Saponification of ethylene-vinyl acetate copolymer - Google Patents
Saponification of ethylene-vinyl acetate copolymerInfo
- Publication number
- JPS5647404A JPS5647404A JP12334579A JP12334579A JPS5647404A JP S5647404 A JPS5647404 A JP S5647404A JP 12334579 A JP12334579 A JP 12334579A JP 12334579 A JP12334579 A JP 12334579A JP S5647404 A JPS5647404 A JP S5647404A
- Authority
- JP
- Japan
- Prior art keywords
- vinyl acetate
- ethylene
- saponified
- product
- butanol
- 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
Abstract
PURPOSE: A specifically composed ethylene-vinyl acetate copolymer is combined with a specific amount of solvent of methanol and sec-butanol and a catalyst and the reaction is effected by heating to produce a uniformly saponified product without fusion of the copolymer with industrial advantage.
CONSTITUTION: In the heterogeneous saponification of an ethylene-vinyl acetate copolymer containing less than 50wt% of vinyl acetate, 100pts.wt. of the particulate copolymer are combined with 150W1,000pts. of a mixture of methanol and/or ethanol and sec-butanol, in which the proportion of sec-butanol is 15W80wt%, and 0.05W10 equivalent amount of a catalyst such as sodium hydroxide and they are made to react at a temperature lower than 90°C, thus producing the saponified product with industrial advantage.
EFFECT: The product saponified in a mixed medium shows much increased adhesion strength and cleaning resistance in comparison with the product saponified in a sole medium.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12334579A JPS5647404A (en) | 1979-09-25 | 1979-09-25 | Saponification of ethylene-vinyl acetate copolymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12334579A JPS5647404A (en) | 1979-09-25 | 1979-09-25 | Saponification of ethylene-vinyl acetate copolymer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5647404A true JPS5647404A (en) | 1981-04-30 |
JPS6211003B2 JPS6211003B2 (en) | 1987-03-10 |
Family
ID=14858256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12334579A Granted JPS5647404A (en) | 1979-09-25 | 1979-09-25 | Saponification of ethylene-vinyl acetate copolymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5647404A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03148312A (en) * | 1989-10-31 | 1991-06-25 | Mitsuboshi Belting Ltd | Bicycle tire |
-
1979
- 1979-09-25 JP JP12334579A patent/JPS5647404A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6211003B2 (en) | 1987-03-10 |
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