JPS57147515A - Preparation of polyester - Google Patents

Preparation of polyester

Info

Publication number
JPS57147515A
JPS57147515A JP3118881A JP3118881A JPS57147515A JP S57147515 A JPS57147515 A JP S57147515A JP 3118881 A JP3118881 A JP 3118881A JP 3118881 A JP3118881 A JP 3118881A JP S57147515 A JPS57147515 A JP S57147515A
Authority
JP
Japan
Prior art keywords
polyester
component
polymerization reaction
reaction
acid
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
JP3118881A
Other languages
Japanese (ja)
Inventor
Takatoshi Kuratsuji
Toshiro Isshiki
Takamasa Asano
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 JP3118881A priority Critical patent/JPS57147515A/en
Publication of JPS57147515A publication Critical patent/JPS57147515A/en
Pending legal-status Critical Current

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  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To prepare an aromatic polyester having low terminal carboxyl group concentration and excellent heat stability, by adding a specific compound to the reaction system before the completion of the melt polymerization reaction of an aromatic dicarboxylic acid, etc. with butanediol, etc.
CONSTITUTION: The objective polyester can be prepared by reacting (A) an acid component composed mainly of an aromatic dicarboxylic acid (preferably terephthalic acid) with (B) a glycol component composed mainly of 1,4-butanediol, and before the completion of the melt polymerization reaction of the components (A) and (B), adding (C) an ammonium compound of formulaI(R1WR4 are H, alkyl, allyl, etc.) (e.g. ammonia) and/or an amine compound of formula II (R5WR7 are H, alkyl, allyl, etc.) (e.g. methylamine) to the reaction system. The amount of the component (C) is preferably 0.01W0.5wt% of the total acid component of the polyester. The addition of the component (C) is preferably carried out between the initiation of the esterification or ester exchange reaction and the initial polymerization reaction.
COPYRIGHT: (C)1982,JPO&Japio
JP3118881A 1981-03-06 1981-03-06 Preparation of polyester Pending JPS57147515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3118881A JPS57147515A (en) 1981-03-06 1981-03-06 Preparation of polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3118881A JPS57147515A (en) 1981-03-06 1981-03-06 Preparation of polyester

Publications (1)

Publication Number Publication Date
JPS57147515A true JPS57147515A (en) 1982-09-11

Family

ID=12324455

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3118881A Pending JPS57147515A (en) 1981-03-06 1981-03-06 Preparation of polyester

Country Status (1)

Country Link
JP (1) JPS57147515A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013005747A1 (en) * 2011-07-04 2013-01-10 三菱化学株式会社 1,4-butanediol-containing composition
US9598388B2 (en) 2011-07-04 2017-03-21 Mitsubishi Chemical Corporation Method for producing tetrahydrofuran

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS48102195A (en) * 1972-04-08 1973-12-22
JPS496195A (en) * 1972-03-28 1974-01-19
JPS52892A (en) * 1975-06-24 1977-01-06 Teijin Ltd Process for producing polyesters
JPS5533695A (en) * 1978-07-13 1980-03-08 Navitronic Ab Navigation system
JPS5538974A (en) * 1978-09-12 1980-03-18 Sumitomo Chem Co Ltd Electrochemical preparation of diphenyl ester

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS496195A (en) * 1972-03-28 1974-01-19
JPS48102195A (en) * 1972-04-08 1973-12-22
JPS52892A (en) * 1975-06-24 1977-01-06 Teijin Ltd Process for producing polyesters
JPS5533695A (en) * 1978-07-13 1980-03-08 Navitronic Ab Navigation system
JPS5538974A (en) * 1978-09-12 1980-03-18 Sumitomo Chem Co Ltd Electrochemical preparation of diphenyl ester

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013005747A1 (en) * 2011-07-04 2013-01-10 三菱化学株式会社 1,4-butanediol-containing composition
JP2013049666A (en) * 2011-07-04 2013-03-14 Mitsubishi Chemicals Corp 1,4-butanediol-containing composition
US9598388B2 (en) 2011-07-04 2017-03-21 Mitsubishi Chemical Corporation Method for producing tetrahydrofuran

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