JPS57141404A - Production of modified ethylene copolymer - Google Patents
Production of modified ethylene copolymerInfo
- Publication number
- JPS57141404A JPS57141404A JP2613081A JP2613081A JPS57141404A JP S57141404 A JPS57141404 A JP S57141404A JP 2613081 A JP2613081 A JP 2613081A JP 2613081 A JP2613081 A JP 2613081A JP S57141404 A JPS57141404 A JP S57141404A
- Authority
- JP
- Japan
- Prior art keywords
- ethylenically unsaturated
- copolymer
- acid
- ethylene
- carboxylate ester
- 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: To obtain an odorless, good-appearance, metal-containing ethylene copolymer, by saponifying an ethylene/α,β-ethylenically unsaturated carboxylate ester copolymer with a basic metal compound and adding an acid anhydride to the saponificate.
CONSTITUTION: A copolymer comprising ethylene and an α,β-ethylenically unsaturated carboxylate ester, α,β-ethylenically unsaturated carboxylate ester content 0.5W30mol%, is saponified with a basic metal compound in an organic solvent. An acid anhydride is added to this saponificate in the form of a solution, whereby a predetermined amount of this its metal carboxylate salt is converted into a carboxylic acid. As the acid anhydrides which are used in the demetalization reaction, those anhydrides are effective which are gaseous in the normal state and, which when hydrated, have an acid dissociation index (pKa) at 25°C, of at least 1.5, such as carbon dioxide or sulfur dioxide. Above all, carbon dioxide gives the most uniform demetalization reaction.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2613081A JPS57141404A (en) | 1981-02-26 | 1981-02-26 | Production of modified ethylene copolymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2613081A JPS57141404A (en) | 1981-02-26 | 1981-02-26 | Production of modified ethylene copolymer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57141404A true JPS57141404A (en) | 1982-09-01 |
Family
ID=12184974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2613081A Pending JPS57141404A (en) | 1981-02-26 | 1981-02-26 | Production of modified ethylene copolymer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57141404A (en) |
-
1981
- 1981-02-26 JP JP2613081A patent/JPS57141404A/en active Pending
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