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JPS5657823A - Preparation of polyester - Google Patents

Preparation of polyester

Info

Publication number
JPS5657823A
JPS5657823A JP13386679A JP13386679A JPS5657823A JP S5657823 A JPS5657823 A JP S5657823A JP 13386679 A JP13386679 A JP 13386679A JP 13386679 A JP13386679 A JP 13386679A JP S5657823 A JPS5657823 A JP S5657823A
Authority
JP
Japan
Prior art keywords
derivative
ammonium
polyester
ethylene glycol
carboxylic acid
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
JP13386679A
Other languages
Japanese (ja)
Other versions
JPS6254130B2 (en
Inventor
Yasuhiro Tokiyama
Nobuhiro Matsunaga
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.)
Nippon Ester Co Ltd
Original Assignee
Nippon Ester 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 Nippon Ester Co Ltd filed Critical Nippon Ester Co Ltd
Priority to JP13386679A priority Critical patent/JPS5657823A/en
Publication of JPS5657823A publication Critical patent/JPS5657823A/en
Publication of JPS6254130B2 publication Critical patent/JPS6254130B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)
  • Artificial Filaments (AREA)

Abstract

PURPOSE: To obtain a high-melting polyester having improved transparency and small content of diethylene glycol, by using a specific amount of ammonium sulfonate as a catalyst in polymerizing a bifunctional carboxylic acid (derivative) with ethylene glycol.
CONSTITUTION: 1×10-4W10×10-4 Equivalent mole ammonium sufonate, e.g., ammonium benzensulfonate, etc. shown by the formula [m is 1W3; n is 0W3; X is OR1 or COOR2 (R1 and R2 are H or lower alkyl) or halogen; Ar is aromatic group; R is H or alkyl or aryl] based on one mole acid ingredient is added to the polycondensation of a bifunctional carboxylic acid (derivative) consisting or consisting essentially of terephthalic acid and ethylene glycol (derivative) at high temperature under highly reduced pressure, to give the desired polyester.
USE: A molding material for a transparent film, bolt, etc.
COPYRIGHT: (C)1981,JPO&Japio
JP13386679A 1979-10-17 1979-10-17 Preparation of polyester Granted JPS5657823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13386679A JPS5657823A (en) 1979-10-17 1979-10-17 Preparation of polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13386679A JPS5657823A (en) 1979-10-17 1979-10-17 Preparation of polyester

Publications (2)

Publication Number Publication Date
JPS5657823A true JPS5657823A (en) 1981-05-20
JPS6254130B2 JPS6254130B2 (en) 1987-11-13

Family

ID=15114876

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13386679A Granted JPS5657823A (en) 1979-10-17 1979-10-17 Preparation of polyester

Country Status (1)

Country Link
JP (1) JPS5657823A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6457229U (en) * 1987-10-01 1989-04-10
JPH0479124U (en) * 1990-11-22 1992-07-09

Also Published As

Publication number Publication date
JPS6254130B2 (en) 1987-11-13

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