JPS57126821A - Production of high-polymerization degree polyester - Google Patents
Production of high-polymerization degree polyesterInfo
- 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
Links
Landscapes
- 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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0192245A (en) * | 1987-10-02 | 1989-04-11 | Polyplastics Co | Resin modifier and modified resin |
-
1981
- 1981-01-30 JP JP1154781A patent/JPS57126821A/en active Pending
Cited By (1)
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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