JPS5263289A - Preparation of polyesters - Google Patents

Preparation of polyesters

Info

Publication number
JPS5263289A
JPS5263289A JP50139670A JP13967075A JPS5263289A JP S5263289 A JPS5263289 A JP S5263289A JP 50139670 A JP50139670 A JP 50139670A JP 13967075 A JP13967075 A JP 13967075A JP S5263289 A JPS5263289 A JP S5263289A
Authority
JP
Japan
Prior art keywords
polyesters
preparation
specific
polycondensing
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
JP50139670A
Other languages
Japanese (ja)
Inventor
Takaaki Tsuji
Nobusuke Takeuchi
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 JP50139670A priority Critical patent/JPS5263289A/en
Publication of JPS5263289A publication Critical patent/JPS5263289A/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

Abstract

PURPOSE: To prepare a polyester with a good color tone by polycondensing a specific crude terephthalic acid in the presence of a specific phosphorus compound in the direct polymerization process.
COPYRIGHT: (C)1977,JPO&Japio
JP50139670A 1975-11-20 1975-11-20 Preparation of polyesters Pending JPS5263289A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50139670A JPS5263289A (en) 1975-11-20 1975-11-20 Preparation of polyesters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50139670A JPS5263289A (en) 1975-11-20 1975-11-20 Preparation of polyesters

Publications (1)

Publication Number Publication Date
JPS5263289A true JPS5263289A (en) 1977-05-25

Family

ID=15250676

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50139670A Pending JPS5263289A (en) 1975-11-20 1975-11-20 Preparation of polyesters

Country Status (1)

Country Link
JP (1) JPS5263289A (en)

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