JPS55127432A - Production of polyester having high polymerization degree - Google Patents
Production of polyester having high polymerization degreeInfo
- Publication number
- JPS55127432A JPS55127432A JP3501079A JP3501079A JPS55127432A JP S55127432 A JPS55127432 A JP S55127432A JP 3501079 A JP3501079 A JP 3501079A JP 3501079 A JP3501079 A JP 3501079A JP S55127432 A JPS55127432 A JP S55127432A
- Authority
- JP
- Japan
- Prior art keywords
- polyester
- cpd
- bisoxazolone
- bisoxazinone
- production
- 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
Landscapes
- Polyesters Or Polycarbonates (AREA)
Abstract
PURPOSE: To obtain a linear polyester having a high polymn. degree under normal pressure in a short time by a method wherein a linear satd. polyester in the molten state is reacted with a bisoxazolone cpd. or a bisoxazinone cpd.
CONSTITUTION: (A) A substantially linear satd. polyester in the molten stute is reacted with 0.1W10wt%, based on the weight of said polyester, of (B) a bisoxazolone cpd. or a bisoxazinone cpd. of formula I (wherein D is a bivalent org.gp.; X is a bivalent org. gp.; a radical of formula II is a five- or six-membered ring; l is 0.1) to obtain (C) a polyester having a high polymn. degree. An example of an acid component constituting (A) is terephthalic acid. Examples of a glycol component are ethylene glycol and tetramethylene glycol. An example of (B) bisoxazolone cpd. is 2,2'-bis[5(4H)-oxazolone], and anexample of bisoxazinone cpd. is 2,2'- bis(3,1-benzoxazin-4-one).
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3501079A JPS55127432A (en) | 1979-03-27 | 1979-03-27 | Production of polyester having high polymerization degree |
US06/133,797 US4291152A (en) | 1979-03-27 | 1980-03-25 | Process for producing aromatic polyesters having increased degrees of polymerization |
DE8080101600T DE3068847D1 (en) | 1979-03-27 | 1980-03-26 | Process for producing aromatic polyesters having increased degrees of polymerization and moulded articles composed of these polyesters |
EP80101600A EP0019061B1 (en) | 1979-03-27 | 1980-03-26 | Process for producing aromatic polyesters having increased degrees of polymerization and moulded articles composed of these polyesters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3501079A JPS55127432A (en) | 1979-03-27 | 1979-03-27 | Production of polyester having high polymerization degree |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55127432A true JPS55127432A (en) | 1980-10-02 |
Family
ID=12430106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3501079A Pending JPS55127432A (en) | 1979-03-27 | 1979-03-27 | Production of polyester having high polymerization degree |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55127432A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5953529A (en) * | 1982-09-22 | 1984-03-28 | Teijin Ltd | Manufacture of polyester |
JPS59164324A (en) * | 1983-03-08 | 1984-09-17 | Teijin Ltd | Production of high-polymerization degree aromatic polyester |
FR2694008A1 (en) * | 1992-07-24 | 1994-01-28 | Atochem Elf Sa | Polymers and copolymers derived from the addition of di-amino and di-hydroxy terminated oligomers and bisoxazinones or bisoxazolinones, and process for their preparation |
JP2002526570A (en) * | 1998-09-23 | 2002-08-20 | スウィッグ プロプライアタリー リミティド | Manufacture of improved polymers by using star cores |
-
1979
- 1979-03-27 JP JP3501079A patent/JPS55127432A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5953529A (en) * | 1982-09-22 | 1984-03-28 | Teijin Ltd | Manufacture of polyester |
JPS59164324A (en) * | 1983-03-08 | 1984-09-17 | Teijin Ltd | Production of high-polymerization degree aromatic polyester |
JPH0355491B2 (en) * | 1983-03-08 | 1991-08-23 | ||
FR2694008A1 (en) * | 1992-07-24 | 1994-01-28 | Atochem Elf Sa | Polymers and copolymers derived from the addition of di-amino and di-hydroxy terminated oligomers and bisoxazinones or bisoxazolinones, and process for their preparation |
JPH06184304A (en) * | 1992-07-24 | 1994-07-05 | Elf Atochem Sa | Polymer and copolymer obtained by addition reaction of oligomer having terminal diamino and dihydroxy groups with bisoxazinone or bisoxazolinone, and their production |
US5665855A (en) * | 1992-07-24 | 1997-09-09 | Elf Atochem S.A. | Polymers and copolymers originating from the addition of oligomers containing diamino and dihydroxy ends and of bisoxazinones or bioxazolinones, and process for obtaining them |
JP2002526570A (en) * | 1998-09-23 | 2002-08-20 | スウィッグ プロプライアタリー リミティド | Manufacture of improved polymers by using star cores |
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