JPS51136788A - Continuo us process for preparing polyester using terephthalic acid - Google Patents

Continuo us process for preparing polyester using terephthalic acid

Info

Publication number
JPS51136788A
JPS51136788A JP50060608A JP6060875A JPS51136788A JP S51136788 A JPS51136788 A JP S51136788A JP 50060608 A JP50060608 A JP 50060608A JP 6060875 A JP6060875 A JP 6060875A JP S51136788 A JPS51136788 A JP S51136788A
Authority
JP
Japan
Prior art keywords
terephthalic acid
continuo
preparing polyester
specific
polyester
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
JP50060608A
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 JP50060608A priority Critical patent/JPS51136788A/en
Publication of JPS51136788A publication Critical patent/JPS51136788A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To make it allowable to use curde terephthalic acid by conducting polycondensation reaction in the presence of specific polycondensation catalysts together with an addition of a specific amount of phosphorus compounds after an esterification index reaches at higer than 70%, in a process for preparing polyester from terephthalic acid.
COPYRIGHT: (C)1976,JPO&Japio
JP50060608A 1975-05-21 1975-05-21 Continuo us process for preparing polyester using terephthalic acid Pending JPS51136788A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50060608A JPS51136788A (en) 1975-05-21 1975-05-21 Continuo us process for preparing polyester using terephthalic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50060608A JPS51136788A (en) 1975-05-21 1975-05-21 Continuo us process for preparing polyester using terephthalic acid

Publications (1)

Publication Number Publication Date
JPS51136788A true JPS51136788A (en) 1976-11-26

Family

ID=13147127

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50060608A Pending JPS51136788A (en) 1975-05-21 1975-05-21 Continuo us process for preparing polyester using terephthalic acid

Country Status (1)

Country Link
JP (1) JPS51136788A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003321538A (en) * 2002-04-26 2003-11-14 Mitsubishi Chemicals Corp Polyester resin and film made thereof
US6815525B2 (en) 2000-12-07 2004-11-09 Eastamn Chemical Company Component introduction into manufacturing process through recirculation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6815525B2 (en) 2000-12-07 2004-11-09 Eastamn Chemical Company Component introduction into manufacturing process through recirculation
JP2003321538A (en) * 2002-04-26 2003-11-14 Mitsubishi Chemicals Corp Polyester resin and film made thereof

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