JPS55145732A - Preparation of polyester with high polymerization degree - Google Patents
Preparation of polyester with high polymerization degreeInfo
- 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
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
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) |
-
1979
- 1979-05-02 JP JP5335179A patent/JPS55145732A/en active Pending
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