JPS51136786A - Process for preparing polyster using terephthalic acid - Google Patents

Process for preparing polyster using terephthalic acid

Info

Publication number
JPS51136786A
JPS51136786A JP6060675A JP6060675A JPS51136786A JP S51136786 A JPS51136786 A JP S51136786A JP 6060675 A JP6060675 A JP 6060675A JP 6060675 A JP6060675 A JP 6060675A JP S51136786 A JPS51136786 A JP S51136786A
Authority
JP
Japan
Prior art keywords
terephthalic acid
preparing
polyster
allowable
stage
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
JP6060675A
Other languages
Japanese (ja)
Inventor
Takaaki Tsuji
Nobusuke Takeuchi
Yoshibumi Kondo
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.)
Kuraray Co Ltd
Original Assignee
Kuraray Co 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 Kuraray Co Ltd filed Critical Kuraray Co Ltd
Priority to JP6060675A priority Critical patent/JPS51136786A/en
Publication of JPS51136786A publication Critical patent/JPS51136786A/en
Pending legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To make it allowable to use crude terephthalic acid by conducting polycondensation by an addition of a specific amount of phosphorus compounds at the stage wherein an esterification index reaches at higher than 80%, in a process for preparing polyester from terephthalic acid.
COPYRIGHT: (C)1976,JPO&Japio
JP6060675A 1975-05-21 1975-05-21 Process for preparing polyster using terephthalic acid Pending JPS51136786A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6060675A JPS51136786A (en) 1975-05-21 1975-05-21 Process for preparing polyster using terephthalic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6060675A JPS51136786A (en) 1975-05-21 1975-05-21 Process for preparing polyster using terephthalic acid

Publications (1)

Publication Number Publication Date
JPS51136786A true JPS51136786A (en) 1976-11-26

Family

ID=13147069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6060675A Pending JPS51136786A (en) 1975-05-21 1975-05-21 Process for preparing polyster using terephthalic acid

Country Status (1)

Country Link
JP (1) JPS51136786A (en)

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