JPS5516025A - Preparation of polyester - Google Patents
Preparation of polyesterInfo
- 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
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1480089A4 (en) * | 2002-02-28 | 2005-09-14 | Sanyo Chemical Ind Ltd | Toner binders |
-
1978
- 1978-07-21 JP JP8835778A patent/JPS5516025A/en active Pending
Cited By (2)
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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