JPS5446293A - Preparation of polyester - Google Patents

Preparation of polyester

Info

Publication number
JPS5446293A
JPS5446293A JP11220477A JP11220477A JPS5446293A JP S5446293 A JPS5446293 A JP S5446293A JP 11220477 A JP11220477 A JP 11220477A JP 11220477 A JP11220477 A JP 11220477A JP S5446293 A JPS5446293 A JP S5446293A
Authority
JP
Japan
Prior art keywords
polycondensation
antimony
metal sulfonate
derivative
completion
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.)
Granted
Application number
JP11220477A
Other languages
Japanese (ja)
Other versions
JPS6129370B2 (en
Inventor
Tadashi Kuno
Noriya Okumura
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 JP11220477A priority Critical patent/JPS5446293A/en
Publication of JPS5446293A publication Critical patent/JPS5446293A/en
Publication of JPS6129370B2 publication Critical patent/JPS6129370B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To prepare a polyester having excellent spinnability with reducing the amount of the impurities adhered to the spinneret, by carrying out the polycondensation in the presence of an antimony compound as a catalyst, and adding a metal sulfonate to the system prior to the completion of the polycondensation.
CONSTITUTION: (1) A dicarboxylic acid component consisting mainly of terephthalic acid (derivative) is reacted with a glycol component consisting mainly of ethylene glycol (derivative) to give the ester and/or its precondensate. (2) Polycondensation is carried out in the presence of an antimony compound (e.g. antimony trioxide, etc.) (preferably 0.01W0.1mol% on the basis of the acid component) as a catalyst. (3) A metal sulfonate (e.g. sodium methylsulfonate, etc.) expressed by the formula (A is alkyl, etc.; M is alkali metal, etc.) is added to the system prior to the completion of the polycondensation, wherein the amount of the metal sulfonate is 0.01W7mol on the basis of 1mol of antimony; and the polycondensation is completed to give the desired polymer.
COPYRIGHT: (C)1979,JPO&Japio
JP11220477A 1977-09-20 1977-09-20 Preparation of polyester Granted JPS5446293A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11220477A JPS5446293A (en) 1977-09-20 1977-09-20 Preparation of polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11220477A JPS5446293A (en) 1977-09-20 1977-09-20 Preparation of polyester

Publications (2)

Publication Number Publication Date
JPS5446293A true JPS5446293A (en) 1979-04-12
JPS6129370B2 JPS6129370B2 (en) 1986-07-07

Family

ID=14580851

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11220477A Granted JPS5446293A (en) 1977-09-20 1977-09-20 Preparation of polyester

Country Status (1)

Country Link
JP (1) JPS5446293A (en)

Also Published As

Publication number Publication date
JPS6129370B2 (en) 1986-07-07

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