JPS5257287A - Production of polyester - Google Patents

Production of polyester

Info

Publication number
JPS5257287A
JPS5257287A JP13217575A JP13217575A JPS5257287A JP S5257287 A JPS5257287 A JP S5257287A JP 13217575 A JP13217575 A JP 13217575A JP 13217575 A JP13217575 A JP 13217575A JP S5257287 A JPS5257287 A JP S5257287A
Authority
JP
Japan
Prior art keywords
polyester
production
esters
terephthalic
added
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
JP13217575A
Other languages
Japanese (ja)
Inventor
Kiyoshi Nawata
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 JP13217575A priority Critical patent/JPS5257287A/en
Publication of JPS5257287A publication Critical patent/JPS5257287A/en
Pending legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: In producing polyesters from glycol esters of dibasic acid containing mainly terephthalic acid, a titanium compound is used as polycondensation catalyst and a specific amount of terephthalic esters is added thereto at a specific stage of the polymerization reaction.
COPYRIGHT: (C)1977,JPO&Japio
JP13217575A 1975-11-05 1975-11-05 Production of polyester Pending JPS5257287A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13217575A JPS5257287A (en) 1975-11-05 1975-11-05 Production of polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13217575A JPS5257287A (en) 1975-11-05 1975-11-05 Production of polyester

Publications (1)

Publication Number Publication Date
JPS5257287A true JPS5257287A (en) 1977-05-11

Family

ID=15075117

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13217575A Pending JPS5257287A (en) 1975-11-05 1975-11-05 Production of polyester

Country Status (1)

Country Link
JP (1) JPS5257287A (en)

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