JPS5521476A - Preparation of aromatic polyester - Google Patents

Preparation of aromatic polyester

Info

Publication number
JPS5521476A
JPS5521476A JP7348179A JP7348179A JPS5521476A JP S5521476 A JPS5521476 A JP S5521476A JP 7348179 A JP7348179 A JP 7348179A JP 7348179 A JP7348179 A JP 7348179A JP S5521476 A JPS5521476 A JP S5521476A
Authority
JP
Japan
Prior art keywords
catalyst
aromatic polyester
formula
amount
organotin compound
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
JP7348179A
Other languages
Japanese (ja)
Other versions
JPS5632330B2 (en
Inventor
Kiyokazu Tsunawaki
Shigeru Sasama
Katsuhisa Watanabe
Kiyoshi Nawata
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 JP7348179A priority Critical patent/JPS5521476A/en
Publication of JPS5521476A publication Critical patent/JPS5521476A/en
Publication of JPS5632330B2 publication Critical patent/JPS5632330B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To prepare an aromatic polyester, by carrying out ester interchange reaction in the presence of a specific organotin compound to reduce the amount of formation of a by-product: tetrahydrofuran.
CONSTITUTION: An ester interchange reaction is carried out between an aromatic bifunctional carboxylic ester (e.g. dimethyl terephthalate, etc.) and teramethylene glycol in the presence of, as a catalyst, an organotin compound such as dibutyltin dichloride, etc. of formula I (R is 1W8C alkyl, etc.; X and Y are each halogen, etc.) or dimethyltin oxide, etc. of formula II (Z is an oxygen atom, etc.). The amount of the catalyst is preferably 0.05W0.3mole% based on the acid component. Subsequently, a polycondensation is performed to obtain the objective polyester.
COPYRIGHT: (C)1980,JPO&Japio
JP7348179A 1979-06-13 1979-06-13 Preparation of aromatic polyester Granted JPS5521476A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7348179A JPS5521476A (en) 1979-06-13 1979-06-13 Preparation of aromatic polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7348179A JPS5521476A (en) 1979-06-13 1979-06-13 Preparation of aromatic polyester

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP6546871A Division JPS4832993A (en) 1971-08-26 1971-08-26

Publications (2)

Publication Number Publication Date
JPS5521476A true JPS5521476A (en) 1980-02-15
JPS5632330B2 JPS5632330B2 (en) 1981-07-27

Family

ID=13519506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7348179A Granted JPS5521476A (en) 1979-06-13 1979-06-13 Preparation of aromatic polyester

Country Status (1)

Country Link
JP (1) JPS5521476A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999028368A1 (en) * 1997-12-04 1999-06-10 Eastman Chemical Company Preparation of polyesters and esters from compounds containing secondary hydroxyl groups
JP2008025300A (en) * 2006-07-25 2008-02-07 Frontier:Kk Sash roller for sliding door

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5916228A (en) * 1982-07-20 1984-01-27 株式会社信明産業 Mat for automatic door and method of producing same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999028368A1 (en) * 1997-12-04 1999-06-10 Eastman Chemical Company Preparation of polyesters and esters from compounds containing secondary hydroxyl groups
JP2008025300A (en) * 2006-07-25 2008-02-07 Frontier:Kk Sash roller for sliding door

Also Published As

Publication number Publication date
JPS5632330B2 (en) 1981-07-27

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