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JPS5286496A - Preparation of polyesters - Google Patents

Preparation of polyesters

Info

Publication number
JPS5286496A
JPS5286496A JP275876A JP275876A JPS5286496A JP S5286496 A JPS5286496 A JP S5286496A JP 275876 A JP275876 A JP 275876A JP 275876 A JP275876 A JP 275876A JP S5286496 A JPS5286496 A JP S5286496A
Authority
JP
Japan
Prior art keywords
polyesters
preparation
discoloration
polymers
catalyst
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
JP275876A
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 JP275876A priority Critical patent/JPS5286496A/en
Publication of JPS5286496A publication Critical patent/JPS5286496A/en
Pending legal-status Critical Current

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  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To prevent the discoloration of polymers by the addition of a metal salt of aliphatic carboxylic acid in the preparation of polyesters, e.g. polyethylene terephthalate, etc. by the use of a titanium compound, e.g. tetrabutyl titanate as a catalyst.
COPYRIGHT: (C)1977,JPO&Japio
JP275876A 1976-01-14 1976-01-14 Preparation of polyesters Pending JPS5286496A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP275876A JPS5286496A (en) 1976-01-14 1976-01-14 Preparation of polyesters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP275876A JPS5286496A (en) 1976-01-14 1976-01-14 Preparation of polyesters

Publications (1)

Publication Number Publication Date
JPS5286496A true JPS5286496A (en) 1977-07-18

Family

ID=11538229

Family Applications (1)

Application Number Title Priority Date Filing Date
JP275876A Pending JPS5286496A (en) 1976-01-14 1976-01-14 Preparation of polyesters

Country Status (1)

Country Link
JP (1) JPS5286496A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55155021A (en) * 1979-05-22 1980-12-03 Toyobo Co Ltd Preparation of polyester
US5684116A (en) * 1994-01-07 1997-11-04 Akzo Nobel, N.V. Titanium dioxide/silicon dioxide coprecipitates and titanium dioxide/zirconium dioxide coprecipitates as polycondensation catalysts for polyesters and copolyesters
US6316584B1 (en) 1997-06-10 2001-11-13 Akzo Nobel Nv Method for producing polyesters and copolyesters

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55155021A (en) * 1979-05-22 1980-12-03 Toyobo Co Ltd Preparation of polyester
JPS6334177B2 (en) * 1979-05-22 1988-07-08 Toyo Boseki
US5684116A (en) * 1994-01-07 1997-11-04 Akzo Nobel, N.V. Titanium dioxide/silicon dioxide coprecipitates and titanium dioxide/zirconium dioxide coprecipitates as polycondensation catalysts for polyesters and copolyesters
US6316584B1 (en) 1997-06-10 2001-11-13 Akzo Nobel Nv Method for producing polyesters and copolyesters

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