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JPS5347491A - Preparation of polyester - Google Patents

Preparation of polyester

Info

Publication number
JPS5347491A
JPS5347491A JP12231976A JP12231976A JPS5347491A JP S5347491 A JPS5347491 A JP S5347491A JP 12231976 A JP12231976 A JP 12231976A JP 12231976 A JP12231976 A JP 12231976A JP S5347491 A JPS5347491 A JP S5347491A
Authority
JP
Japan
Prior art keywords
polyester
preparation
oil
carboxylic acid
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.)
Granted
Application number
JP12231976A
Other languages
Japanese (ja)
Other versions
JPS576445B2 (en
Inventor
Gen Kurisu
Noritsugu Saiki
Shoji Kawase
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 JP12231976A priority Critical patent/JPS5347491A/en
Publication of JPS5347491A publication Critical patent/JPS5347491A/en
Publication of JPS576445B2 publication Critical patent/JPS576445B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To prepare easily a polyester of high polymerization degree and uniform quality by the reaction of tetramethylene glycol with a bifunctional carboxylic acid under vacuum by the use of an oil rotary vacuum pump using an oil maintained at a specific temperature.
COPYRIGHT: (C)1978,JPO&Japio
JP12231976A 1976-10-14 1976-10-14 Preparation of polyester Granted JPS5347491A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12231976A JPS5347491A (en) 1976-10-14 1976-10-14 Preparation of polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12231976A JPS5347491A (en) 1976-10-14 1976-10-14 Preparation of polyester

Publications (2)

Publication Number Publication Date
JPS5347491A true JPS5347491A (en) 1978-04-27
JPS576445B2 JPS576445B2 (en) 1982-02-04

Family

ID=14833005

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12231976A Granted JPS5347491A (en) 1976-10-14 1976-10-14 Preparation of polyester

Country Status (1)

Country Link
JP (1) JPS5347491A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57135828A (en) * 1981-02-17 1982-08-21 Toray Ind Inc Recovery of by-product tetrahydrofuran

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6322130U (en) * 1986-07-30 1988-02-13

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913256A (en) * 1972-05-16 1974-02-05
JPS50124991A (en) * 1974-02-27 1975-10-01

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4913256A (en) * 1972-05-16 1974-02-05
JPS50124991A (en) * 1974-02-27 1975-10-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57135828A (en) * 1981-02-17 1982-08-21 Toray Ind Inc Recovery of by-product tetrahydrofuran

Also Published As

Publication number Publication date
JPS576445B2 (en) 1982-02-04

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