JPS5725325A - Production of molding polyester - Google Patents
Production of molding polyesterInfo
- Publication number
- JPS5725325A JPS5725325A JP9947180A JP9947180A JPS5725325A JP S5725325 A JPS5725325 A JP S5725325A JP 9947180 A JP9947180 A JP 9947180A JP 9947180 A JP9947180 A JP 9947180A JP S5725325 A JPS5725325 A JP S5725325A
- Authority
- JP
- Japan
- Prior art keywords
- chips
- prepolymer
- stream
- polyester
- inert gas
- 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 produce a molding polyester, with good reaction stability, by subjecting polyester prepolymer chips to a specified pretreatment and, then, subjecting the treated chips to solid-phase polymerization.
CONSTITUTION: An acid component, e.g., terephthalic acid, and an alcohol component, e.g., ethylene glycol, are molten and polycondensed to form a polyester prepolymer, limiting viscosity ≥0.3, and the prepolymer is formed into chips in the form of die, cylinder or the like. Next, the prepolymer chips are charged into a crystallization tank provided with an impeller, and crystallized therein under agitation at an agitator power consumption of below 2WH/kg under a stream of heated (120W190°C) inert gas. Next, the chips are transferred to a storage tank, allowed to stand, heat-treated at below 90°C under a stream of heated inert gas to give a density higher than 1.39g/cm3, and solid phase-polymerized under vacuum or a stream of inert gas at 200W250°C to obtain a molding polyester, limiting viscosity ≥0.6.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9947180A JPS5725325A (en) | 1980-07-21 | 1980-07-21 | Production of molding polyester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9947180A JPS5725325A (en) | 1980-07-21 | 1980-07-21 | Production of molding polyester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5725325A true JPS5725325A (en) | 1982-02-10 |
Family
ID=14248222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9947180A Pending JPS5725325A (en) | 1980-07-21 | 1980-07-21 | Production of molding polyester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5725325A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60127843U (en) * | 1984-02-08 | 1985-08-28 | 日本軽金属株式会社 | Feeding mechanism of stopper for processing machine |
| KR100655195B1 (en) | 2005-11-02 | 2006-12-08 | 삼성정밀화학 주식회사 | Manufacturing method of wholly aromatic polyester |
| KR100681569B1 (en) * | 1996-08-01 | 2007-05-04 | 신코 엔지니어링 에스.페.아. | How to make polyester resin |
| JP2012140601A (en) * | 2010-12-15 | 2012-07-26 | Fujifilm Corp | Method for producing polyester film, polyester film for solar cell, and solar cell electric power generation module |
-
1980
- 1980-07-21 JP JP9947180A patent/JPS5725325A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60127843U (en) * | 1984-02-08 | 1985-08-28 | 日本軽金属株式会社 | Feeding mechanism of stopper for processing machine |
| KR100681569B1 (en) * | 1996-08-01 | 2007-05-04 | 신코 엔지니어링 에스.페.아. | How to make polyester resin |
| KR100655195B1 (en) | 2005-11-02 | 2006-12-08 | 삼성정밀화학 주식회사 | Manufacturing method of wholly aromatic polyester |
| JP2012140601A (en) * | 2010-12-15 | 2012-07-26 | Fujifilm Corp | Method for producing polyester film, polyester film for solar cell, and solar cell electric power generation module |
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