JPS543194A - Continuos production of polyester oligomer - Google Patents

Continuos production of polyester oligomer

Info

Publication number
JPS543194A
JPS543194A JP6872177A JP6872177A JPS543194A JP S543194 A JPS543194 A JP S543194A JP 6872177 A JP6872177 A JP 6872177A JP 6872177 A JP6872177 A JP 6872177A JP S543194 A JPS543194 A JP S543194A
Authority
JP
Japan
Prior art keywords
polyester oligomer
continuos
production
amount
continuos production
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
Application number
JP6872177A
Other languages
Japanese (ja)
Other versions
JPS5942689B2 (en
Inventor
Yoshio Imamura
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.)
Toyobo Co Ltd
Original Assignee
Toyobo Co 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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Priority to JP6872177A priority Critical patent/JPS5942689B2/en
Publication of JPS543194A publication Critical patent/JPS543194A/en
Publication of JPS5942689B2 publication Critical patent/JPS5942689B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: The amount of ethylene glycol is set to a specific ratio to terephthalic acid and the amount of vapor evolving in the reactor is increased to remove diethylene glycol by entrainment, thereby reducing the discoloration of produced polymers.
COPYRIGHT: (C)1979,JPO&Japio
JP6872177A 1977-06-09 1977-06-09 Continuous production method of polyester low polymer Expired JPS5942689B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6872177A JPS5942689B2 (en) 1977-06-09 1977-06-09 Continuous production method of polyester low polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6872177A JPS5942689B2 (en) 1977-06-09 1977-06-09 Continuous production method of polyester low polymer

Publications (2)

Publication Number Publication Date
JPS543194A true JPS543194A (en) 1979-01-11
JPS5942689B2 JPS5942689B2 (en) 1984-10-17

Family

ID=13381933

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6872177A Expired JPS5942689B2 (en) 1977-06-09 1977-06-09 Continuous production method of polyester low polymer

Country Status (1)

Country Link
JP (1) JPS5942689B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60163918A (en) * 1984-02-06 1985-08-26 Toyobo Co Ltd Continuous production of polyester
JPS62195017A (en) * 1985-12-17 1987-08-27 ツィマー・アクチエンゲゼルシヤフト Continuous manufacture of high molecular weight polybutyreneterephthalate
CN102190784A (en) * 2011-04-01 2011-09-21 浙江万凯新材料有限公司 Production equipment for PET (poly(ethylene terephthalate)) chip

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60163918A (en) * 1984-02-06 1985-08-26 Toyobo Co Ltd Continuous production of polyester
JPS62195017A (en) * 1985-12-17 1987-08-27 ツィマー・アクチエンゲゼルシヤフト Continuous manufacture of high molecular weight polybutyreneterephthalate
CN102190784A (en) * 2011-04-01 2011-09-21 浙江万凯新材料有限公司 Production equipment for PET (poly(ethylene terephthalate)) chip

Also Published As

Publication number Publication date
JPS5942689B2 (en) 1984-10-17

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