JPS5473897A - Production of polytetramethylene terephthalate - Google Patents

Production of polytetramethylene terephthalate

Info

Publication number
JPS5473897A
JPS5473897A JP14047377A JP14047377A JPS5473897A JP S5473897 A JPS5473897 A JP S5473897A JP 14047377 A JP14047377 A JP 14047377A JP 14047377 A JP14047377 A JP 14047377A JP S5473897 A JPS5473897 A JP S5473897A
Authority
JP
Japan
Prior art keywords
alkyl
compound
butanediol
formula
polytetramethylene terephthalate
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
JP14047377A
Other languages
Japanese (ja)
Other versions
JPS6232210B2 (en
Inventor
Tomiji Matsuki
Kenji Terajima
Shunji Nakazawa
Michihiko Tanaka
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP14047377A priority Critical patent/JPS5473897A/en
Publication of JPS5473897A publication Critical patent/JPS5473897A/en
Publication of JPS6232210B2 publication Critical patent/JPS6232210B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: The polymerization is conducted in the presence of a specific organotitanium compound and organotin compound to inhibit the formation of by-products and produce polytetramethylene terephthalate with less contamination by foreign substances and good haze, suitable for making fibers.
CONSTITUTION: An organotitanium compound of formula I (R is alkyl; M is alkaline earth metal) such as magnesium titanium methylate is mixed with an organotin compound of formula II (R is alkyl; X1, X2, X3 are alkyl and others) such as tetraethyltin at a weight ratio of 0.7W5. The polycondensation reaction between terephthalic acid or its derivative and butanediol-1,4 is conducteed in the presence of 0.001W0.1 wt% of the mixture as a catalyst to yield the objective polymer.
EFFECT: Recovered butanediol with a water content of less than 10 wt% can be eomployed as the feedstock.
COPYRIGHT: (C)1979,JPO&Japio
JP14047377A 1977-11-22 1977-11-22 Production of polytetramethylene terephthalate Granted JPS5473897A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14047377A JPS5473897A (en) 1977-11-22 1977-11-22 Production of polytetramethylene terephthalate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14047377A JPS5473897A (en) 1977-11-22 1977-11-22 Production of polytetramethylene terephthalate

Publications (2)

Publication Number Publication Date
JPS5473897A true JPS5473897A (en) 1979-06-13
JPS6232210B2 JPS6232210B2 (en) 1987-07-13

Family

ID=15269409

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14047377A Granted JPS5473897A (en) 1977-11-22 1977-11-22 Production of polytetramethylene terephthalate

Country Status (1)

Country Link
JP (1) JPS5473897A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63105053A (en) * 1986-10-20 1988-05-10 Kuraray Co Ltd Polyester resin having excellent light resistance
JP2008248218A (en) * 2006-11-17 2008-10-16 Nippon Ester Co Ltd Polyester resin
JP2008279219A (en) * 2007-05-08 2008-11-20 Hajime Kimura Motor-driven traveling toy travel-controlled by magnet installed at part of traveling path

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63105053A (en) * 1986-10-20 1988-05-10 Kuraray Co Ltd Polyester resin having excellent light resistance
JP2008248218A (en) * 2006-11-17 2008-10-16 Nippon Ester Co Ltd Polyester resin
JP2008279219A (en) * 2007-05-08 2008-11-20 Hajime Kimura Motor-driven traveling toy travel-controlled by magnet installed at part of traveling path

Also Published As

Publication number Publication date
JPS6232210B2 (en) 1987-07-13

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