JPS5446293A - Preparation of polyester - Google Patents
Preparation of polyesterInfo
- Publication number
- JPS5446293A JPS5446293A JP11220477A JP11220477A JPS5446293A JP S5446293 A JPS5446293 A JP S5446293A JP 11220477 A JP11220477 A JP 11220477A JP 11220477 A JP11220477 A JP 11220477A JP S5446293 A JPS5446293 A JP S5446293A
- Authority
- JP
- Japan
- Prior art keywords
- polycondensation
- antimony
- metal sulfonate
- derivative
- completion
- 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
- Polyesters Or Polycarbonates (AREA)
Abstract
PURPOSE: To prepare a polyester having excellent spinnability with reducing the amount of the impurities adhered to the spinneret, by carrying out the polycondensation in the presence of an antimony compound as a catalyst, and adding a metal sulfonate to the system prior to the completion of the polycondensation.
CONSTITUTION: (1) A dicarboxylic acid component consisting mainly of terephthalic acid (derivative) is reacted with a glycol component consisting mainly of ethylene glycol (derivative) to give the ester and/or its precondensate. (2) Polycondensation is carried out in the presence of an antimony compound (e.g. antimony trioxide, etc.) (preferably 0.01W0.1mol% on the basis of the acid component) as a catalyst. (3) A metal sulfonate (e.g. sodium methylsulfonate, etc.) expressed by the formula (A is alkyl, etc.; M is alkali metal, etc.) is added to the system prior to the completion of the polycondensation, wherein the amount of the metal sulfonate is 0.01W7mol on the basis of 1mol of antimony; and the polycondensation is completed to give the desired polymer.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11220477A JPS5446293A (en) | 1977-09-20 | 1977-09-20 | Preparation of polyester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11220477A JPS5446293A (en) | 1977-09-20 | 1977-09-20 | Preparation of polyester |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5446293A true JPS5446293A (en) | 1979-04-12 |
JPS6129370B2 JPS6129370B2 (en) | 1986-07-07 |
Family
ID=14580851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11220477A Granted JPS5446293A (en) | 1977-09-20 | 1977-09-20 | Preparation of polyester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5446293A (en) |
-
1977
- 1977-09-20 JP JP11220477A patent/JPS5446293A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6129370B2 (en) | 1986-07-07 |
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