JPS5536264A - Production of polyester - Google Patents

Production of polyester

Info

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
Application number
JP11010778A
Other languages
Japanese (ja)
Inventor
Hirokazu Tani
Akio Nakamura
Takashi Indo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kanebo Ltd
Original Assignee
Kanebo Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kanebo Ltd filed Critical Kanebo Ltd
Priority to JP11010778A priority Critical patent/JPS5536264A/en
Publication of JPS5536264A publication Critical patent/JPS5536264A/en
Pending legal-status Critical Current

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
JP11010778A 1978-09-06 1978-09-06 Production of polyester Pending JPS5536264A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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