JPS5586817A - Preparation of polyester - Google Patents
Preparation of polyesterInfo
- Publication number
- JPS5586817A JPS5586817A JP16210978A JP16210978A JPS5586817A JP S5586817 A JPS5586817 A JP S5586817A JP 16210978 A JP16210978 A JP 16210978A JP 16210978 A JP16210978 A JP 16210978A JP S5586817 A JPS5586817 A JP S5586817A
- Authority
- JP
- Japan
- Prior art keywords
- terephthalate
- polyester
- hydroxyethyl
- bis
- antimony trioxide
- 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 obtain stably a polyester useful as film material, etc., having improved transparency and color tone, by submitting bis(β-hydroxyethyl)terephthalate or a composition consisting mainly of the compound to polycondensation using antimony trioxide with specific properties as a catalyst.
CONSTITUTION: Bis( β-hydroxyethyl )terephthalate or a composition consisting mainly of the compound undergoes polycondensation using antimony trioxide having low impurity content and a solution haze per 10mm thickness not more than 2% measured by using 1wt% ethylene glycol solution of antimony trioxide to give stably a polyester having improved transparency and color tone. This method can be applied not only to the production of polyethylene terephthalate but also to that of a polyester consisting of bis(β-hydroxyethyl)terephthalate as a main component and isophthalic acid, adipic acid, and propylene glycol as copolymerization components.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16210978A JPS5586817A (en) | 1978-12-26 | 1978-12-26 | Preparation of polyester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16210978A JPS5586817A (en) | 1978-12-26 | 1978-12-26 | Preparation of polyester |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5586817A true JPS5586817A (en) | 1980-07-01 |
Family
ID=15748208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16210978A Pending JPS5586817A (en) | 1978-12-26 | 1978-12-26 | Preparation of polyester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5586817A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0188204A2 (en) * | 1985-01-16 | 1986-07-23 | Bayer Ag | Process for the fabrication of thermosetting aliphatic polycarbonates |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS505349A (en) * | 1973-05-24 | 1975-01-21 |
-
1978
- 1978-12-26 JP JP16210978A patent/JPS5586817A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS505349A (en) * | 1973-05-24 | 1975-01-21 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0188204A2 (en) * | 1985-01-16 | 1986-07-23 | Bayer Ag | Process for the fabrication of thermosetting aliphatic polycarbonates |
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