JPS54137094A - Preparation of polyester - Google Patents

Preparation of polyester

Info

Publication number
JPS54137094A
JPS54137094A JP4475078A JP4475078A JPS54137094A JP S54137094 A JPS54137094 A JP S54137094A JP 4475078 A JP4475078 A JP 4475078A JP 4475078 A JP4475078 A JP 4475078A JP S54137094 A JPS54137094 A JP S54137094A
Authority
JP
Japan
Prior art keywords
mole
polyester
titanium compound
alkylsulfonic acid
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.)
Granted
Application number
JP4475078A
Other languages
Japanese (ja)
Other versions
JPS6120569B2 (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 JP4475078A priority Critical patent/JPS54137094A/en
Publication of JPS54137094A publication Critical patent/JPS54137094A/en
Publication of JPS6120569B2 publication Critical patent/JPS6120569B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Polyesters Or Polycarbonates (AREA)

Abstract

PURPOSE: To prepare a polyester having excellent formability, a high softening point and improved whiteness, by carrying out the polycondensation in the presence of an alkylsulfonic acid compound and a titanium compound as the catalyst.
CONSTITUTION: A glycol ester of a difunctional aromatic carboxylic acid, e.g. bishydroxyethyl terephthalate, etc., and/or its low polymer is polycondensed in the presence of a catalyst system comprising (A) an alkylsulfonic acid compound expressed by the formula (A is aliphatic group; M is H, alkali metal or alkaline earth metal), and (B) a titanium compound, e.g. tetraalkyl titanate, etc., wherein the amount of (A) is 1/40W10 mole on the basis of 1 mole of (B).
COPYRIGHT: (C)1979,JPO&Japio
JP4475078A 1978-04-18 1978-04-18 Preparation of polyester Granted JPS54137094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4475078A JPS54137094A (en) 1978-04-18 1978-04-18 Preparation of polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4475078A JPS54137094A (en) 1978-04-18 1978-04-18 Preparation of polyester

Publications (2)

Publication Number Publication Date
JPS54137094A true JPS54137094A (en) 1979-10-24
JPS6120569B2 JPS6120569B2 (en) 1986-05-22

Family

ID=12700115

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4475078A Granted JPS54137094A (en) 1978-04-18 1978-04-18 Preparation of polyester

Country Status (1)

Country Link
JP (1) JPS54137094A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03212443A (en) * 1990-01-18 1991-09-18 Asahi Chem Ind Co Ltd Polyoxymethylene resin composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03212443A (en) * 1990-01-18 1991-09-18 Asahi Chem Ind Co Ltd Polyoxymethylene resin composition

Also Published As

Publication number Publication date
JPS6120569B2 (en) 1986-05-22

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