JPS5744622A - Preparation of powdery aromatic polyester - Google Patents

Preparation of powdery aromatic polyester

Info

Publication number
JPS5744622A
JPS5744622A JP12051480A JP12051480A JPS5744622A JP S5744622 A JPS5744622 A JP S5744622A JP 12051480 A JP12051480 A JP 12051480A JP 12051480 A JP12051480 A JP 12051480A JP S5744622 A JPS5744622 A JP S5744622A
Authority
JP
Japan
Prior art keywords
component
polymerization
aromatic polyester
stirring blades
formula
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
JP12051480A
Other languages
Japanese (ja)
Other versions
JPH023808B2 (en
Inventor
Haruo Suzuki
Hiroaki Sugimoto
Makoto Hanabatake
Keiichiro Watanabe
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP12051480A priority Critical patent/JPS5744622A/en
Publication of JPS5744622A publication Critical patent/JPS5744622A/en
Publication of JPH023808B2 publication Critical patent/JPH023808B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To prepare an aromatic polyester composed of specific constituent unit, in powdery form, by reversing the rotation of the stirring blades of a vertical polymerizer during the polymerization, thereby changing the shear force applied to the polymer.
CONSTITUTION: A powdery aromatic polyester consisting of the constituent units of formula I, formula II and formula III (X is hydrocarbon group, O, SO2, S, or CO; m is 0 or 1; n is 0 or 1; the substituent groups of the aromatic ring are para- or meta-positions each other) wherein the ratio of the component I to the component II is 1:0W1:10, and that of the component II to the component III is 9:10W10:9, can be prepared using a vertical polymerizer furnished with stirring blades, by starting the polymerization rotating the stirring blades horizontally to a direction, and when the reaction system becomes viscous by the progress of polymerization, reversing the rotation of the blades, and repeating the reversion at regular intervals, thereby changing the shearing force applied to said polymer.
COPYRIGHT: (C)1982,JPO&Japio
JP12051480A 1980-08-29 1980-08-29 Preparation of powdery aromatic polyester Granted JPS5744622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12051480A JPS5744622A (en) 1980-08-29 1980-08-29 Preparation of powdery aromatic polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12051480A JPS5744622A (en) 1980-08-29 1980-08-29 Preparation of powdery aromatic polyester

Publications (2)

Publication Number Publication Date
JPS5744622A true JPS5744622A (en) 1982-03-13
JPH023808B2 JPH023808B2 (en) 1990-01-25

Family

ID=14788099

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12051480A Granted JPS5744622A (en) 1980-08-29 1980-08-29 Preparation of powdery aromatic polyester

Country Status (1)

Country Link
JP (1) JPS5744622A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007217502A (en) * 2006-02-15 2007-08-30 Unitika Ltd Method for producing polyarylate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007217502A (en) * 2006-02-15 2007-08-30 Unitika Ltd Method for producing polyarylate

Also Published As

Publication number Publication date
JPH023808B2 (en) 1990-01-25

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