JPS57126821A - Production of high-polymerization degree polyester - Google Patents

Production of high-polymerization degree polyester

Info

Publication number
JPS57126821A
JPS57126821A JP1154781A JP1154781A JPS57126821A JP S57126821 A JPS57126821 A JP S57126821A JP 1154781 A JP1154781 A JP 1154781A JP 1154781 A JP1154781 A JP 1154781A JP S57126821 A JPS57126821 A JP S57126821A
Authority
JP
Japan
Prior art keywords
polyester
aromatic polyester
polymerization degree
unreactive
hydrocarbyl
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
JP1154781A
Other languages
Japanese (ja)
Inventor
Shunichi Matsumura
Hiroo Inada
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 JP1154781A priority Critical patent/JPS57126821A/en
Priority to US06/340,036 priority patent/US4517315A/en
Priority to DE8282100415T priority patent/DE3270916D1/en
Priority to EP82100415A priority patent/EP0057387B1/en
Publication of JPS57126821A publication Critical patent/JPS57126821A/en
Pending legal-status Critical Current

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  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To produce a high-polymerization degree polyester, by reacting an aromatic polyester with a specified biscycloimino ester compound in the presence of a low-MW compound unreactive with the aromatic polyester.
CONSTITUTION: There is used a biscyclomino ester compound of formulaI, wherein Y is a bivalent hydrocarbyl, X is a bivalent hydrocarbyl unreactive under the reaction conditions, and 1 is 0 or 1, or of formula II, wherein A is a group of formula III, wherein R2 is a monovalent hydrocarbyl or of formula IV, wherein R is a tetravalent aromatic group and R1 is a monovalent hydrocarbyl, e.g., 2,2'-bis(3,1-bezoxazine-4-one). Namely, an aromatic polyester having a terminal hydroxyl group (e.g., polyethylene terephthalate) is reacted with about 0.01W5wt%, based on the polyester, said biscycloimino ester in the presence of a low-molecular compound unreactive with the aromatic polyester and having a MW of below 1,000 and a b.p. of above 200°C, e.g., nitrobenzene.
COPYRIGHT: (C)1982,JPO&Japio
JP1154781A 1981-01-27 1981-01-30 Production of high-polymerization degree polyester Pending JPS57126821A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1154781A JPS57126821A (en) 1981-01-30 1981-01-30 Production of high-polymerization degree polyester
US06/340,036 US4517315A (en) 1981-01-27 1982-01-18 Production of a film-like or fibrous structure of an aromatic polyester
DE8282100415T DE3270916D1 (en) 1981-01-27 1982-01-21 Production of a film-like or fibrous structure of an aromatic polyester
EP82100415A EP0057387B1 (en) 1981-01-27 1982-01-21 Production of a film-like or fibrous structure of an aromatic polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1154781A JPS57126821A (en) 1981-01-30 1981-01-30 Production of high-polymerization degree polyester

Publications (1)

Publication Number Publication Date
JPS57126821A true JPS57126821A (en) 1982-08-06

Family

ID=11780980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1154781A Pending JPS57126821A (en) 1981-01-27 1981-01-30 Production of high-polymerization degree polyester

Country Status (1)

Country Link
JP (1) JPS57126821A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0192245A (en) * 1987-10-02 1989-04-11 Polyplastics Co Resin modifier and modified resin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0192245A (en) * 1987-10-02 1989-04-11 Polyplastics Co Resin modifier and modified resin

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