JPS5516025A - Preparation of polyester - Google Patents

Preparation of polyester

Info

Publication number
JPS5516025A
JPS5516025A JP8835778A JP8835778A JPS5516025A JP S5516025 A JPS5516025 A JP S5516025A JP 8835778 A JP8835778 A JP 8835778A JP 8835778 A JP8835778 A JP 8835778A JP S5516025 A JPS5516025 A JP S5516025A
Authority
JP
Japan
Prior art keywords
phosphine
tri
glycol
millimol
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.)
Pending
Application number
JP8835778A
Other languages
Japanese (ja)
Inventor
Wataru Funakoshi
Kiyoshi Nawata
Kiyokazu Tsunawaki
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 JP8835778A priority Critical patent/JPS5516025A/en
Publication of JPS5516025A publication Critical patent/JPS5516025A/en
Pending legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To obtain a high-quality polyester with little softening point drop, good appearance, and useful for fibers, etc., by direct esterification between ferephthalic acid and a glycol in the presence of, a specific aromatic phosphine and an organotitanium compound followed by carrying out polycondensation.
CONSTITUTION: A direct esterification is carried out between a dicarboxylic acid consisting chiefly of terephthalic acid and a glycol consisting mainly of ethylene glycol in the presence of an aromatic phosphine of formula (Ar1, Ar2, and Ar3 are each 6W12C aryl), e.g. triphenyl phosphine, tri-p-chlorophenyl phosphine, tri-p-methoxyphenyl phosphine, tri-p-tolyl phosphine, etc., and an organotitanium compound such as a titanium carboxylate, titanyl carboxylate, etc., in amounts of 0.5W50 millimol %, and 0.5W50 millimol % both based on the dicarboxylic acid, respectively. The reaction product thus obtained is subsequently subjected to polycondensation.
COPYRIGHT: (C)1980,JPO&Japio
JP8835778A 1978-07-21 1978-07-21 Preparation of polyester Pending JPS5516025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8835778A JPS5516025A (en) 1978-07-21 1978-07-21 Preparation of polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8835778A JPS5516025A (en) 1978-07-21 1978-07-21 Preparation of polyester

Publications (1)

Publication Number Publication Date
JPS5516025A true JPS5516025A (en) 1980-02-04

Family

ID=13940554

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8835778A Pending JPS5516025A (en) 1978-07-21 1978-07-21 Preparation of polyester

Country Status (1)

Country Link
JP (1) JPS5516025A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1480089A4 (en) * 2002-02-28 2005-09-14 Sanyo Chemical Ind Ltd Toner binders

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1480089A4 (en) * 2002-02-28 2005-09-14 Sanyo Chemical Ind Ltd Toner binders
US7049041B2 (en) 2002-02-28 2006-05-23 Sanyo Chemical Industries, Ltd. Resin for toner binder and toner composition

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