JPS52892A - Process for producing polyesters - Google Patents

Process for producing polyesters

Info

Publication number
JPS52892A
JPS52892A JP7647975A JP7647975A JPS52892A JP S52892 A JPS52892 A JP S52892A JP 7647975 A JP7647975 A JP 7647975A JP 7647975 A JP7647975 A JP 7647975A JP S52892 A JPS52892 A JP S52892A
Authority
JP
Japan
Prior art keywords
producing polyesters
amine
reducing
polyethylene terephthalate
improve
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.)
Pending
Application number
JP7647975A
Other languages
Japanese (ja)
Inventor
Masataka Inoue
Tsutomu Kiriyama
Masatoshi Furukawa
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.)
Teijin Ltd
Original Assignee
Teijin Ltd
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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP7647975A priority Critical patent/JPS52892A/en
Publication of JPS52892A publication Critical patent/JPS52892A/en
Pending legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To improve the thermal resistance, color tone, spinning properties, etc. of a polyethylene terephthalate produced by the direct polymerization method by carring out the esterification reaction under a specified condition and reducing the amount of an amine.
COPYRIGHT: (C)1977,JPO&Japio
JP7647975A 1975-06-24 1975-06-24 Process for producing polyesters Pending JPS52892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7647975A JPS52892A (en) 1975-06-24 1975-06-24 Process for producing polyesters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7647975A JPS52892A (en) 1975-06-24 1975-06-24 Process for producing polyesters

Publications (1)

Publication Number Publication Date
JPS52892A true JPS52892A (en) 1977-01-06

Family

ID=13606318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7647975A Pending JPS52892A (en) 1975-06-24 1975-06-24 Process for producing polyesters

Country Status (1)

Country Link
JP (1) JPS52892A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773020A (en) * 1980-08-25 1982-05-07 Celanese Corp Manufacture of polybutylene terephthalate
JPS57147515A (en) * 1981-03-06 1982-09-11 Teijin Ltd Preparation of polyester
JPS5997749A (en) * 1982-11-24 1984-06-05 Toyota Central Res & Dev Lab Inc Casting method for die casting
KR100837979B1 (en) * 2001-02-08 2008-06-13 바스프 에스이 Expandable Polyolefin Particles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773020A (en) * 1980-08-25 1982-05-07 Celanese Corp Manufacture of polybutylene terephthalate
JPS57147515A (en) * 1981-03-06 1982-09-11 Teijin Ltd Preparation of polyester
JPS5997749A (en) * 1982-11-24 1984-06-05 Toyota Central Res & Dev Lab Inc Casting method for die casting
KR100837979B1 (en) * 2001-02-08 2008-06-13 바스프 에스이 Expandable Polyolefin Particles

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