JPS55145732A - Preparation of polyester with high polymerization degree - Google Patents

Preparation of polyester with high polymerization degree

Info

Publication number
JPS55145732A
JPS55145732A JP5335179A JP5335179A JPS55145732A JP S55145732 A JPS55145732 A JP S55145732A JP 5335179 A JP5335179 A JP 5335179A JP 5335179 A JP5335179 A JP 5335179A JP S55145732 A JPS55145732 A JP S55145732A
Authority
JP
Japan
Prior art keywords
polyester
formula
molten state
substantially linear
linear saturated
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
JP5335179A
Other languages
Japanese (ja)
Inventor
Shunichi Matsumura
Hiroo Inada
Makoto Ogasawara
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 JP5335179A priority Critical patent/JPS55145732A/en
Publication of JPS55145732A publication Critical patent/JPS55145732A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a titled polyester with excellent mechanical property and useful as a fiber stock material or the like, by reacting a substantially linear saturated polyester in a molten state and a specific bisbenzoxazinone compound.
CONSTITUTION: To a substantially linear saturated polyester of which a limited viscosity is pref. above 0.3 obtained from an acid component such as terephthalic acid or adipic acid and a glycol component such as ethylene glycol or tetramethylene glycol, a compound expressed by formula I (wherein R is a tetravalent aromatic group; X1, X2 are alkyl, aryl, cyaloalkyl), e.g. a bisbenzoxazinone compound expressed by formula II (wherein Z is a carbon-carbon bond, -O- or the like directly binding aromatic unclei mutually; X1, X2 are the same groups as above described) is used in 0.1W10wt% concn. to polyester and the reaction is carried out while said polyester is in a molten state to obtain an aimed polyester.
COPYRIGHT: (C)1980,JPO&Japio
JP5335179A 1979-05-02 1979-05-02 Preparation of polyester with high polymerization degree Pending JPS55145732A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5335179A JPS55145732A (en) 1979-05-02 1979-05-02 Preparation of polyester with high polymerization degree

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5335179A JPS55145732A (en) 1979-05-02 1979-05-02 Preparation of polyester with high polymerization degree

Publications (1)

Publication Number Publication Date
JPS55145732A true JPS55145732A (en) 1980-11-13

Family

ID=12940351

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5335179A Pending JPS55145732A (en) 1979-05-02 1979-05-02 Preparation of polyester with high polymerization degree

Country Status (1)

Country Link
JP (1) JPS55145732A (en)

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