JPS54127497A - Production of polyester - Google Patents
Production of polyesterInfo
- Publication number
- JPS54127497A JPS54127497A JP3404578A JP3404578A JPS54127497A JP S54127497 A JPS54127497 A JP S54127497A JP 3404578 A JP3404578 A JP 3404578A JP 3404578 A JP3404578 A JP 3404578A JP S54127497 A JPS54127497 A JP S54127497A
- Authority
- JP
- Japan
- Prior art keywords
- reaction
- effected
- esterinterchange
- butanediol
- polyester
- 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
- Polyesters Or Polycarbonates (AREA)
Abstract
PURPOSE: After esterinterchange reaction between terephthalic acid and 1,4-butanediol is effected to the level of prescribed exchange rate, polycondensation reaction is advanced, thereby preventing the formation of tetrahydrofuran and facilitating the handling of 1,4-butanediol during winter.
CONSTITUTION: Esterinterchange reaction between lower alkyl esters of difunctional carboxylic acids mainly consisting of terephthalic acid and glycols mainly consisting of 1,4-butanediol is effected and then the polycondensation reaction of the resulting product is continued to form polyester wherein the esterinterchanging reaction is effected at 120W190°C unitl the rate of esterinterchange reaches 70W90%. The glycols distilled under reduced pressures ontains alkanols; however, it can be directly reused without purification as the raw material for polyester.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3404578A JPS54127497A (en) | 1978-03-27 | 1978-03-27 | Production of polyester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3404578A JPS54127497A (en) | 1978-03-27 | 1978-03-27 | Production of polyester |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54127497A true JPS54127497A (en) | 1979-10-03 |
Family
ID=12403338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3404578A Pending JPS54127497A (en) | 1978-03-27 | 1978-03-27 | Production of polyester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54127497A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016500393A (en) * | 2012-12-12 | 2016-01-12 | サムスン ファイン ケミカルズ カンパニー リミテッドSamsungfine Chemicals Co., Ltd. | Continuous production method of biodegradable aliphatic-aromatic polyester copolymer |
-
1978
- 1978-03-27 JP JP3404578A patent/JPS54127497A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016500393A (en) * | 2012-12-12 | 2016-01-12 | サムスン ファイン ケミカルズ カンパニー リミテッドSamsungfine Chemicals Co., Ltd. | Continuous production method of biodegradable aliphatic-aromatic polyester copolymer |
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