JPS5699224A - Preparation of polyester - Google Patents
Preparation of polyesterInfo
- Publication number
- JPS5699224A JPS5699224A JP297080A JP297080A JPS5699224A JP S5699224 A JPS5699224 A JP S5699224A JP 297080 A JP297080 A JP 297080A JP 297080 A JP297080 A JP 297080A JP S5699224 A JPS5699224 A JP S5699224A
- Authority
- JP
- Japan
- Prior art keywords
- polycondensation
- compound
- polyester
- beginning
- preparation
- 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.)
- Granted
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
PURPOSE: To prepare a polyester with excellent characteristics, for the formation of a film, by adding a Ca compound and a P compound at a point of time after the completion of ester exchange reaction but before the beginning of polycondensation, in the preparation of a polyester by use of an acid component and a glycol component.
CONSTITUTION: In the preparation of a polyester by use of a low alkyl terephthalate (e.g., dimethyl terephthalate), as an acid component, and of ethylene glycol, as a glycol component, about 0.05W0.4mol% of a soluble calcium compound (e.g., calcium acetate) is added before the beginning of polycondensation, and two kinds of phosphorus compound (a mixture of a trialkyl phoshate with a trialkyl phosphite in a mol ratio of 1W20) in an amount 1W4 times as much as said calcium compound in mol, is added after the completion of ester exchage reaction but before the beginning of polycondensation, to the reaction system, which is subjected to polycondensation after being kept at 220W250°C for 10W15min.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP297080A JPS5699224A (en) | 1980-01-14 | 1980-01-14 | Preparation of polyester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP297080A JPS5699224A (en) | 1980-01-14 | 1980-01-14 | Preparation of polyester |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5699224A true JPS5699224A (en) | 1981-08-10 |
JPS6136780B2 JPS6136780B2 (en) | 1986-08-20 |
Family
ID=11544223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP297080A Granted JPS5699224A (en) | 1980-01-14 | 1980-01-14 | Preparation of polyester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5699224A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57119923A (en) * | 1981-01-16 | 1982-07-26 | Diafoil Co Ltd | Manufacture of polyester |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS504710A (en) * | 1972-12-21 | 1975-01-18 | ||
JPS50144798A (en) * | 1974-05-11 | 1975-11-20 | ||
JPS5490294A (en) * | 1977-12-27 | 1979-07-17 | Daiafoil | Preparation of polyester |
-
1980
- 1980-01-14 JP JP297080A patent/JPS5699224A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS504710A (en) * | 1972-12-21 | 1975-01-18 | ||
JPS50144798A (en) * | 1974-05-11 | 1975-11-20 | ||
JPS5490294A (en) * | 1977-12-27 | 1979-07-17 | Daiafoil | Preparation of polyester |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57119923A (en) * | 1981-01-16 | 1982-07-26 | Diafoil Co Ltd | Manufacture of polyester |
JPH0329810B2 (en) * | 1981-01-16 | 1991-04-25 |
Also Published As
Publication number | Publication date |
---|---|
JPS6136780B2 (en) | 1986-08-20 |
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