JPS55111215A - Continuous current treatment for polyester chip - Google Patents
Continuous current treatment for polyester chipInfo
- Publication number
- JPS55111215A JPS55111215A JP1958679A JP1958679A JPS55111215A JP S55111215 A JPS55111215 A JP S55111215A JP 1958679 A JP1958679 A JP 1958679A JP 1958679 A JP1958679 A JP 1958679A JP S55111215 A JPS55111215 A JP S55111215A
- Authority
- JP
- Japan
- Prior art keywords
- mixing
- moving bed
- polyester chip
- chip
- treatment
- 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
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
PURPOSE: To obtain a polyester chip ideal for any kind of molding by preventing adhesion-fusion of chips through heated agitation thereof in a mixing tank at the temperature between the secondary transition point and the melting point beforehand in the continuous heated current treatment of the chip at the moving bed.
CONSTITUTION: Prior to continuous heated current treatment of a polyester chip with a moving bed treatment device (hereafter called moving bed), the chip is subjected to a heated agitation with a mixing agitation device (hereafter called mixing cell) through an air or inert gas current at the temperature of the secondary transition point to the melting point to prevent fusion between chips during the treatment. In this manner, the generation of fine particles can be reduced while the retention time of the chips be made uniform in the device thereby producing a polyester chip ideal for the molding for strings, films, vessels or the like. The number of the mixing cells is preferably three or less. If one mixing cell is used, the retention time in the cell should be preferably 0.1W0.3 times as large as that in the moving bed. If three cells are used, preferably 0.2W0.5 times.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1958679A JPS55111215A (en) | 1979-02-20 | 1979-02-20 | Continuous current treatment for polyester chip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1958679A JPS55111215A (en) | 1979-02-20 | 1979-02-20 | Continuous current treatment for polyester chip |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55111215A true JPS55111215A (en) | 1980-08-27 |
JPS63210B2 JPS63210B2 (en) | 1988-01-06 |
Family
ID=12003351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1958679A Granted JPS55111215A (en) | 1979-02-20 | 1979-02-20 | Continuous current treatment for polyester chip |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55111215A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61232282A (en) * | 1985-04-05 | 1986-10-16 | 株式会社村田製作所 | Heat treatment for thin film-formed substrate |
JPS61232283A (en) * | 1985-04-05 | 1986-10-16 | 株式会社村田製作所 | Method of baking electric material paste |
JPH05255490A (en) * | 1992-01-21 | 1993-10-05 | Toray Ind Inc | Easily dryable polyester particle |
JP2004277723A (en) * | 2003-02-28 | 2004-10-07 | Mitsubishi Chemicals Corp | Process for production of polyester resin powder, process for production of polyester preform and thermal treatment equipment for polyester resin powder |
JP2007112995A (en) * | 2005-09-21 | 2007-05-10 | Mitsubishi Chemicals Corp | Apparatus for heat treatment of polyester particle and method for multistage solid-phase polycondensation of polyester particle |
-
1979
- 1979-02-20 JP JP1958679A patent/JPS55111215A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61232282A (en) * | 1985-04-05 | 1986-10-16 | 株式会社村田製作所 | Heat treatment for thin film-formed substrate |
JPS61232283A (en) * | 1985-04-05 | 1986-10-16 | 株式会社村田製作所 | Method of baking electric material paste |
JPH05255490A (en) * | 1992-01-21 | 1993-10-05 | Toray Ind Inc | Easily dryable polyester particle |
JP2004277723A (en) * | 2003-02-28 | 2004-10-07 | Mitsubishi Chemicals Corp | Process for production of polyester resin powder, process for production of polyester preform and thermal treatment equipment for polyester resin powder |
JP2007112995A (en) * | 2005-09-21 | 2007-05-10 | Mitsubishi Chemicals Corp | Apparatus for heat treatment of polyester particle and method for multistage solid-phase polycondensation of polyester particle |
Also Published As
Publication number | Publication date |
---|---|
JPS63210B2 (en) | 1988-01-06 |
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