JPS54120699A - Preparation of polyester - Google Patents
Preparation of polyesterInfo
- Publication number
- JPS54120699A JPS54120699A JP2800678A JP2800678A JPS54120699A JP S54120699 A JPS54120699 A JP S54120699A JP 2800678 A JP2800678 A JP 2800678A JP 2800678 A JP2800678 A JP 2800678A JP S54120699 A JPS54120699 A JP S54120699A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- polycondensation
- added
- cobalt
- phosphorus
- 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
Abstract
PURPOSE: To prepare a polyester having excellent whiteness and heat stability, by the polycondensation of an aromatic dicarboxylic acid and a glycol, adding a cobalt compound and a phosphorus compound at a stage different from the stage of the addition of a titanium compound.
CONSTITUTION: In the polycondensation of an aromatic dicarboxylic acid or its lower alkyl ester with a glycol, a cobalt compound and a phosphorus compound which are soluble to the reaction mixture, are added to the reaction system before or during the polycondensation, and, at a different stage from the addition of the above compound, a titanium compound is also added to the reaction system. Preferably, the cobalt compound and the phosphorus compound are added before the polycondensation to form a coordination compound, and the titanium compound is added in the course of the polycondensation. The atomic ratio of the cobalt to the phosphorus is 1 to 0.3Wl, pref. 1 to 0.5W1.5.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2800678A JPS54120699A (en) | 1978-03-10 | 1978-03-10 | Preparation of polyester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2800678A JPS54120699A (en) | 1978-03-10 | 1978-03-10 | Preparation of polyester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54120699A true JPS54120699A (en) | 1979-09-19 |
Family
ID=12236689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2800678A Pending JPS54120699A (en) | 1978-03-10 | 1978-03-10 | Preparation of polyester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54120699A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5538838A (en) * | 1978-09-12 | 1980-03-18 | Nippon Ester Co Ltd | Preparation of polyester |
| JPS59213756A (en) * | 1983-05-17 | 1984-12-03 | Kuraray Co Ltd | Polyester composition having improved light resistance |
| JPH02218718A (en) * | 1988-10-12 | 1990-08-31 | Hoechst Celanese Corp | Method for improving color of polyarylate by using cobalt salt |
| JPH0324125A (en) * | 1989-05-25 | 1991-02-01 | Hoechst Celanese Corp | Preparation of low color tone polyallylate |
| WO1996037534A1 (en) * | 1995-05-23 | 1996-11-28 | Karl Fischer Industrieanlagen Gmbh | Process for producing polyesters using titanium-containing catalyst-inhibitor combinations |
-
1978
- 1978-03-10 JP JP2800678A patent/JPS54120699A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5538838A (en) * | 1978-09-12 | 1980-03-18 | Nippon Ester Co Ltd | Preparation of polyester |
| JPS59213756A (en) * | 1983-05-17 | 1984-12-03 | Kuraray Co Ltd | Polyester composition having improved light resistance |
| JPH0456859B2 (en) * | 1983-05-17 | 1992-09-09 | Kuraray Co | |
| JPH02218718A (en) * | 1988-10-12 | 1990-08-31 | Hoechst Celanese Corp | Method for improving color of polyarylate by using cobalt salt |
| JPH0324125A (en) * | 1989-05-25 | 1991-02-01 | Hoechst Celanese Corp | Preparation of low color tone polyallylate |
| WO1996037534A1 (en) * | 1995-05-23 | 1996-11-28 | Karl Fischer Industrieanlagen Gmbh | Process for producing polyesters using titanium-containing catalyst-inhibitor combinations |
| US6013756A (en) * | 1995-05-23 | 2000-01-11 | Karl Fischer Industrieanlagen Gmbh | Process for producing polyesters using titanium-containing catalyst-inhibitor combinations |
| CN1080273C (en) * | 1995-05-23 | 2002-03-06 | 卡尔弗沙工业设备公司 | Process for producing polyesters using titanium-containing catalyst-inhibitor combinations |
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