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JPS5556121A - Preparation of polyester - Google Patents

Preparation of polyester

Info

Publication number
JPS5556121A
JPS5556121A JP12856178A JP12856178A JPS5556121A JP S5556121 A JPS5556121 A JP S5556121A JP 12856178 A JP12856178 A JP 12856178A JP 12856178 A JP12856178 A JP 12856178A JP S5556121 A JPS5556121 A JP S5556121A
Authority
JP
Japan
Prior art keywords
polyester
polycondensation
compound
formula
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
JP12856178A
Other languages
Japanese (ja)
Other versions
JPS6126806B2 (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 JP12856178A priority Critical patent/JPS5556121A/en
Publication of JPS5556121A publication Critical patent/JPS5556121A/en
Publication of JPS6126806B2 publication Critical patent/JPS6126806B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To prepare a polyester having excellent moldability and color tone and high softening point, by the polycondensation of a glycol ester of a dibasic aromatic carboxylic acid in the presence of a catalyst comprising a Ti compound and a pentaerythrityl diphosphite derivative.
CONSTITUTION: The objective polyester is prepared by the polycondensation of (A) a glycol ester of a dibasic aromatic carboxylic acid (e.g. terephthalic acid) and/or its oligomer, in the presence of (B) a polycondensation catalyst comprising (a) 1mol of a Ti compound of formula Ti(OR)4 (R is 3W4C alkyl) and (b) pref. 0.5W5mol of a pentaerythrityl diphosphite derivative of formula I (n is an integer of ≥10).
COPYRIGHT: (C)1980,JPO&Japio
JP12856178A 1978-10-20 1978-10-20 Preparation of polyester Granted JPS5556121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12856178A JPS5556121A (en) 1978-10-20 1978-10-20 Preparation of polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12856178A JPS5556121A (en) 1978-10-20 1978-10-20 Preparation of polyester

Publications (2)

Publication Number Publication Date
JPS5556121A true JPS5556121A (en) 1980-04-24
JPS6126806B2 JPS6126806B2 (en) 1986-06-23

Family

ID=14987799

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12856178A Granted JPS5556121A (en) 1978-10-20 1978-10-20 Preparation of polyester

Country Status (1)

Country Link
JP (1) JPS5556121A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3300315A1 (en) 1983-01-07 1984-07-12 Dynamit Nobel Ag, 5210 Troisdorf METHOD FOR PRODUCING LIGHT-COLORED POLYESTERS USING TITANIUM CATALYSTS
EP0826713A1 (en) * 1996-09-03 1998-03-04 Hoechst Celanese Corporation Process for producing polyethylene terephthalate using a specific catalyst stabilizer system
EP1110988A1 (en) * 1999-06-24 2001-06-27 Teijin Limited Catalyst for polyester production and process for producing polyester with the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3300315A1 (en) 1983-01-07 1984-07-12 Dynamit Nobel Ag, 5210 Troisdorf METHOD FOR PRODUCING LIGHT-COLORED POLYESTERS USING TITANIUM CATALYSTS
EP0826713A1 (en) * 1996-09-03 1998-03-04 Hoechst Celanese Corporation Process for producing polyethylene terephthalate using a specific catalyst stabilizer system
EP1110988A1 (en) * 1999-06-24 2001-06-27 Teijin Limited Catalyst for polyester production and process for producing polyester with the same
EP1110988A4 (en) * 1999-06-24 2003-01-02 Teijin Ltd Catalyst for polyester production and process for producing polyester with the same

Also Published As

Publication number Publication date
JPS6126806B2 (en) 1986-06-23

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