JPS5521476A - Preparation of aromatic polyester - Google Patents
Preparation of aromatic polyesterInfo
- Publication number
- JPS5521476A JPS5521476A JP7348179A JP7348179A JPS5521476A JP S5521476 A JPS5521476 A JP S5521476A JP 7348179 A JP7348179 A JP 7348179A JP 7348179 A JP7348179 A JP 7348179A JP S5521476 A JPS5521476 A JP S5521476A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- aromatic polyester
- formula
- amount
- organotin compound
- 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
Abstract
PURPOSE: To prepare an aromatic polyester, by carrying out ester interchange reaction in the presence of a specific organotin compound to reduce the amount of formation of a by-product: tetrahydrofuran.
CONSTITUTION: An ester interchange reaction is carried out between an aromatic bifunctional carboxylic ester (e.g. dimethyl terephthalate, etc.) and teramethylene glycol in the presence of, as a catalyst, an organotin compound such as dibutyltin dichloride, etc. of formula I (R is 1W8C alkyl, etc.; X and Y are each halogen, etc.) or dimethyltin oxide, etc. of formula II (Z is an oxygen atom, etc.). The amount of the catalyst is preferably 0.05W0.3mole% based on the acid component. Subsequently, a polycondensation is performed to obtain the objective polyester.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7348179A JPS5521476A (en) | 1979-06-13 | 1979-06-13 | Preparation of aromatic polyester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7348179A JPS5521476A (en) | 1979-06-13 | 1979-06-13 | Preparation of aromatic polyester |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6546871A Division JPS4832993A (en) | 1971-08-26 | 1971-08-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5521476A true JPS5521476A (en) | 1980-02-15 |
JPS5632330B2 JPS5632330B2 (en) | 1981-07-27 |
Family
ID=13519506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7348179A Granted JPS5521476A (en) | 1979-06-13 | 1979-06-13 | Preparation of aromatic polyester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5521476A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999028368A1 (en) * | 1997-12-04 | 1999-06-10 | Eastman Chemical Company | Preparation of polyesters and esters from compounds containing secondary hydroxyl groups |
JP2008025300A (en) * | 2006-07-25 | 2008-02-07 | Frontier:Kk | Sash roller for sliding door |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5916228A (en) * | 1982-07-20 | 1984-01-27 | 株式会社信明産業 | Mat for automatic door and method of producing same |
-
1979
- 1979-06-13 JP JP7348179A patent/JPS5521476A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999028368A1 (en) * | 1997-12-04 | 1999-06-10 | Eastman Chemical Company | Preparation of polyesters and esters from compounds containing secondary hydroxyl groups |
JP2008025300A (en) * | 2006-07-25 | 2008-02-07 | Frontier:Kk | Sash roller for sliding door |
Also Published As
Publication number | Publication date |
---|---|
JPS5632330B2 (en) | 1981-07-27 |
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