JPS5655426A - Production of polyester - Google Patents
Production of polyesterInfo
- Publication number
- JPS5655426A JPS5655426A JP13151079A JP13151079A JPS5655426A JP S5655426 A JPS5655426 A JP S5655426A JP 13151079 A JP13151079 A JP 13151079A JP 13151079 A JP13151079 A JP 13151079A JP S5655426 A JPS5655426 A JP S5655426A
- Authority
- JP
- Japan
- Prior art keywords
- polyester
- treating
- limiting viscosity
- hot
- predominant
- 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 produce a polyester substantially free from aldehydes, by heat-treating polyester particles having ethylene glycol as a predominant glycol component under specified conditions.
CONSTITUTION: High-quality polyester particles substantially free from aldehydes and having a good color are produced by treating with hot water at 50W200°C, a polyester having ethylene glycol as a predominant glycol component, limiting viscosity ≥0.3, bulk density 0.5W1.1g/cc, and then heat-treating the polyester under conditions which satisfy the relationship of the formula, wherein [η]O is a limiting viscosity of polyester before hot-water treatment and [η] is a limiting viscosity of polyester afte hot-water treatment.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13151079A JPS5655426A (en) | 1979-10-12 | 1979-10-12 | Production of polyester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13151079A JPS5655426A (en) | 1979-10-12 | 1979-10-12 | Production of polyester |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5655426A true JPS5655426A (en) | 1981-05-16 |
JPS6317090B2 JPS6317090B2 (en) | 1988-04-12 |
Family
ID=15059713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13151079A Granted JPS5655426A (en) | 1979-10-12 | 1979-10-12 | Production of polyester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5655426A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58176212A (en) * | 1982-04-09 | 1983-10-15 | Teijin Ltd | Polyester for molding and its production |
JPS59219328A (en) * | 1983-05-28 | 1984-12-10 | Toyobo Co Ltd | Production of high-polymerization degree polyester |
JPS61113824A (en) * | 1984-11-02 | 1986-05-31 | Kanebo Ltd | Electrically conductive composite fiber |
JPH0347830A (en) * | 1989-03-31 | 1991-02-28 | Mitsui Petrochem Ind Ltd | Production of polyethylene terephthalate |
JPH0372524A (en) * | 1989-05-31 | 1991-03-27 | Mitsui Petrochem Ind Ltd | Polyethylene terephthalate |
JPH03174441A (en) * | 1989-03-31 | 1991-07-29 | Mitsui Petrochem Ind Ltd | Method for treating polyethylene terephthalate |
JP2002544303A (en) * | 1999-05-11 | 2002-12-24 | シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー | Method and apparatus for crystallization of polytrimethylene terephthalate |
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 |
JP2008056918A (en) * | 2006-08-02 | 2008-03-13 | Mitsubishi Chemicals Corp | Method for producing polyester resin, crystallized polyester prepolymer pellet and polyester resin pellet |
JP2008511730A (en) * | 2004-09-02 | 2008-04-17 | イーストマン ケミカル カンパニー | Removal of residual acetaldehyde from polyester polymer particles |
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 |
US8329857B2 (en) | 2006-08-02 | 2012-12-11 | Mitsubishi Chemical Corporation | Polyester resin particle and method for producing the same |
-
1979
- 1979-10-12 JP JP13151079A patent/JPS5655426A/en active Granted
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58176212A (en) * | 1982-04-09 | 1983-10-15 | Teijin Ltd | Polyester for molding and its production |
JPS59219328A (en) * | 1983-05-28 | 1984-12-10 | Toyobo Co Ltd | Production of high-polymerization degree polyester |
JPH0379373B2 (en) * | 1983-05-28 | 1991-12-18 | Toyo Boseki | |
JPS61113824A (en) * | 1984-11-02 | 1986-05-31 | Kanebo Ltd | Electrically conductive composite fiber |
JPH0129890B2 (en) * | 1984-11-02 | 1989-06-14 | Kanebo Ltd | |
JPH0347830A (en) * | 1989-03-31 | 1991-02-28 | Mitsui Petrochem Ind Ltd | Production of polyethylene terephthalate |
JPH03174441A (en) * | 1989-03-31 | 1991-07-29 | Mitsui Petrochem Ind Ltd | Method for treating polyethylene terephthalate |
JPH0372524A (en) * | 1989-05-31 | 1991-03-27 | Mitsui Petrochem Ind Ltd | Polyethylene terephthalate |
JP2002544303A (en) * | 1999-05-11 | 2002-12-24 | シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー | Method and apparatus for crystallization of polytrimethylene terephthalate |
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 |
JP2008511730A (en) * | 2004-09-02 | 2008-04-17 | イーストマン ケミカル カンパニー | Removal of residual acetaldehyde from polyester polymer particles |
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 |
JP2008056918A (en) * | 2006-08-02 | 2008-03-13 | Mitsubishi Chemicals Corp | Method for producing polyester resin, crystallized polyester prepolymer pellet and polyester resin pellet |
US8329857B2 (en) | 2006-08-02 | 2012-12-11 | Mitsubishi Chemical Corporation | Polyester resin particle and method for producing the same |
Also Published As
Publication number | Publication date |
---|---|
JPS6317090B2 (en) | 1988-04-12 |
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