JPS5655426A - Production of polyester - Google Patents

Production of polyester

Info

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
Application number
JP13151079A
Other languages
Japanese (ja)
Other versions
JPS6317090B2 (en
Inventor
Takuji Hirahara
Takashi Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP13151079A priority Critical patent/JPS5655426A/en
Publication of JPS5655426A publication Critical patent/JPS5655426A/en
Publication of JPS6317090B2 publication Critical patent/JPS6317090B2/ja
Granted legal-status Critical Current

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
JP13151079A 1979-10-12 1979-10-12 Production of polyester Granted JPS5655426A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (19)

* Cited by examiner, † Cited by third party
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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