JPS5536264A - Production of polyester - Google Patents
Production of polyesterInfo
- Publication number
- JPS5536264A JPS5536264A JP11010778A JP11010778A JPS5536264A JP S5536264 A JPS5536264 A JP S5536264A JP 11010778 A JP11010778 A JP 11010778A JP 11010778 A JP11010778 A JP 11010778A JP S5536264 A JPS5536264 A JP S5536264A
- Authority
- JP
- Japan
- Prior art keywords
- fed
- slurry
- polyester
- produce
- reaction
- 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
Abstract
PURPOSE: A slurry that is controlled in temperature below the specified level is fed into the esterification tank where the reaction proceeds to produce a polyester of lower content of insoluble impurities, that is why the polymer can be suitably used for making fiber of high quality.
CONSTITUTION: One mole of terephthalic acid and preferably 1.05W1.25moles of ethylene glycol that is cooled below 30°C are fed to a kneader into a slurry. Then, the slurry kept preferably lower than 30°C is fed into the direct esterification tank where the esterification reaction is effected at over 240°C and further the polycondensation reaction of the product is conducted to produce said polyester.
EFFECT: In the melt spinning, the cloggin of filters, yarn break and so on are free and the fluffing of the yarn obtained is little.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11010778A JPS5536264A (en) | 1978-09-06 | 1978-09-06 | Production of polyester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11010778A JPS5536264A (en) | 1978-09-06 | 1978-09-06 | Production of polyester |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5536264A true JPS5536264A (en) | 1980-03-13 |
Family
ID=14527209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11010778A Pending JPS5536264A (en) | 1978-09-06 | 1978-09-06 | Production of polyester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5536264A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008056801A1 (en) * | 2006-11-07 | 2008-05-15 | Teijin Fibers Limited | Method for producing terephthalic acid-alkylene glycol mixture |
-
1978
- 1978-09-06 JP JP11010778A patent/JPS5536264A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008056801A1 (en) * | 2006-11-07 | 2008-05-15 | Teijin Fibers Limited | Method for producing terephthalic acid-alkylene glycol mixture |
JP5129753B2 (en) * | 2006-11-07 | 2013-01-30 | 帝人株式会社 | Method for producing terephthalic acid-alkylene glycol mixture |
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