JPS5473897A - Production of polytetramethylene terephthalate - Google Patents
Production of polytetramethylene terephthalateInfo
- 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
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
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)
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 |
-
1977
- 1977-11-22 JP JP14047377A patent/JPS5473897A/en active Granted
Cited By (3)
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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