JPS56147823A - Cooling and solidifying method of polyester - Google Patents
Cooling and solidifying method of polyesterInfo
- Publication number
- JPS56147823A JPS56147823A JP5073280A JP5073280A JPS56147823A JP S56147823 A JPS56147823 A JP S56147823A JP 5073280 A JP5073280 A JP 5073280A JP 5073280 A JP5073280 A JP 5073280A JP S56147823 A JPS56147823 A JP S56147823A
- Authority
- JP
- Japan
- Prior art keywords
- molten
- tetramethylene terephthalate
- spherulites
- stringy
- grow
- 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
- Processes Of Treating Macromolecular Substances (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
PURPOSE: To cool and solidify molten tetramethylene terephthalate into a stringy or platy meterial having improved processing properties, e.g. cutting and drying properties to give chips, etc., by bringing the molten tetramethylene terephthalate into contact with hot water at a specific temperature to make spherulites occur and grow.
CONSTITUTION: A thermoplastic polyester consisting of terephthalic acid and 1,4- butanediol as main constituents and 75mol% or more tetramethylene terephthalate is molten at a temperature of the melting point or above, preferably 160W270°C, and extruded through a nozzle into a stringy or platy shape. The resultant extrudate is then brought into contact with hot water at 30W70°C for preferably 1W30sec to make spherulites occur and grow and whiten the polymer. Thus, the extrudate is solidified to a thickness of preferably 1W4mm.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5073280A JPS56147823A (en) | 1980-04-16 | 1980-04-16 | Cooling and solidifying method of polyester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5073280A JPS56147823A (en) | 1980-04-16 | 1980-04-16 | Cooling and solidifying method of polyester |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56147823A true JPS56147823A (en) | 1981-11-17 |
JPH0321568B2 JPH0321568B2 (en) | 1991-03-25 |
Family
ID=12867016
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5073280A Granted JPS56147823A (en) | 1980-04-16 | 1980-04-16 | Cooling and solidifying method of polyester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56147823A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7192545B2 (en) | 2003-10-10 | 2007-03-20 | Eastman Chemical Company | Thermal crystallization of a molten polyester polymer in a fluid |
US7329723B2 (en) | 2003-09-18 | 2008-02-12 | Eastman Chemical Company | Thermal crystallization of polyester pellets in liquid |
US7875184B2 (en) | 2005-09-22 | 2011-01-25 | Eastman Chemical Company | Crystallized pellet/liquid separator |
US8022168B2 (en) | 2004-09-02 | 2011-09-20 | Grupo Petrotexmex, S.A. de C.V. | Spheroidal polyester polymer particles |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51107346A (en) * | 1975-03-19 | 1976-09-22 | Kuraray Co | |
JPS5218753A (en) * | 1975-08-05 | 1977-02-12 | Toray Ind Inc | Chips for molding composed of a polyester-polyether block copolymer an d a process for preparing them |
-
1980
- 1980-04-16 JP JP5073280A patent/JPS56147823A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51107346A (en) * | 1975-03-19 | 1976-09-22 | Kuraray Co | |
JPS5218753A (en) * | 1975-08-05 | 1977-02-12 | Toray Ind Inc | Chips for molding composed of a polyester-polyether block copolymer an d a process for preparing them |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7329723B2 (en) | 2003-09-18 | 2008-02-12 | Eastman Chemical Company | Thermal crystallization of polyester pellets in liquid |
US7674877B2 (en) | 2003-09-18 | 2010-03-09 | Eastman Chemical Company | Thermal crystallization of polyester pellets in liquid |
US7192545B2 (en) | 2003-10-10 | 2007-03-20 | Eastman Chemical Company | Thermal crystallization of a molten polyester polymer in a fluid |
US8039581B2 (en) | 2003-10-10 | 2011-10-18 | Grupo Petrotemex, S.A. De C.V. | Thermal crystallization of a molten polyester polymer in a fluid |
US8309683B2 (en) | 2003-10-10 | 2012-11-13 | Grupo Petrotemex, S.A. De C.V. | Thermal crystallization of a molten polyester polymer in a fluid |
US8022168B2 (en) | 2004-09-02 | 2011-09-20 | Grupo Petrotexmex, S.A. de C.V. | Spheroidal polyester polymer particles |
US7875184B2 (en) | 2005-09-22 | 2011-01-25 | Eastman Chemical Company | Crystallized pellet/liquid separator |
Also Published As
Publication number | Publication date |
---|---|
JPH0321568B2 (en) | 1991-03-25 |
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