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JPS56159221A - Equipment for continuous solid-phase polymerization - Google Patents

Equipment for continuous solid-phase polymerization

Info

Publication number
JPS56159221A
JPS56159221A JP6166880A JP6166880A JPS56159221A JP S56159221 A JPS56159221 A JP S56159221A JP 6166880 A JP6166880 A JP 6166880A JP 6166880 A JP6166880 A JP 6166880A JP S56159221 A JPS56159221 A JP S56159221A
Authority
JP
Japan
Prior art keywords
viscosity
vacuum
controller
predetermined
chips
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
JP6166880A
Other languages
Japanese (ja)
Inventor
Toshibumi Okudaira
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP6166880A priority Critical patent/JPS56159221A/en
Publication of JPS56159221A publication Critical patent/JPS56159221A/en
Pending legal-status Critical Current

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  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: A part of polymer chips taken out of the continuous solid polymerization tank is continuously melted and its viscosity is measured, then the vacuum in the polymerizer is controlled according to the viscosity, thus producing the chip product with less fluctuation in polymerization degree.
CONSTITUTION: In the solid-phase polymerization tank 1, chips reaching a predetermined polymerization degree are always trapped in the hopper 14 and pneumatically conveyed through pipe 18 with a rotary valve 19 under cooling with a nitrogen gas 15. A very small part of the chips in the hopper 14 is continuously sent through by-pass 21 to the melting extruder 20 and the viscosity of the melted polymer is detected with the detector 23 mounted to pipe 22. The detected values are compared with the predetermined one in the controller 29 to calculate the difference. The signals from the controller 29 to the vacuum controller 28 to change the set value of vacuum degree one corresponding to the measured viscosity and to control the valve 6, thus keeping the inside of the polymerizer to the predetermined vacuum.
COPYRIGHT: (C)1981,JPO&Japio
JP6166880A 1980-05-12 1980-05-12 Equipment for continuous solid-phase polymerization Pending JPS56159221A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6166880A JPS56159221A (en) 1980-05-12 1980-05-12 Equipment for continuous solid-phase polymerization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6166880A JPS56159221A (en) 1980-05-12 1980-05-12 Equipment for continuous solid-phase polymerization

Publications (1)

Publication Number Publication Date
JPS56159221A true JPS56159221A (en) 1981-12-08

Family

ID=13177835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6166880A Pending JPS56159221A (en) 1980-05-12 1980-05-12 Equipment for continuous solid-phase polymerization

Country Status (1)

Country Link
JP (1) JPS56159221A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0527032U (en) * 1991-09-12 1993-04-06 日本エステル株式会社 Continuous solid-state polymerization equipment
JPH0537937U (en) * 1991-10-29 1993-05-21 日本エステル株式会社 Continuous solid-state polymerization equipment
JP2008543993A (en) * 2005-06-14 2008-12-04 フェリンガー，マーカス Method for increasing the intrinsic viscosity of a polyester material by solid phase polycondensation and apparatus therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0527032U (en) * 1991-09-12 1993-04-06 日本エステル株式会社 Continuous solid-state polymerization equipment
JPH0537937U (en) * 1991-10-29 1993-05-21 日本エステル株式会社 Continuous solid-state polymerization equipment
JP2008543993A (en) * 2005-06-14 2008-12-04 フェリンガー，マーカス Method for increasing the intrinsic viscosity of a polyester material by solid phase polycondensation and apparatus therefor
KR101298818B1 (en) * 2005-06-14 2013-08-23 마르쿠스 펠린게르 Method and device for increasing the limiting viscosity of polyester materials by solid phase polycondensation

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