JPS54100495A - Preparation of polyester - Google Patents
Preparation of polyesterInfo
- Publication number
- JPS54100495A JPS54100495A JP708678A JP708678A JPS54100495A JP S54100495 A JPS54100495 A JP S54100495A JP 708678 A JP708678 A JP 708678A JP 708678 A JP708678 A JP 708678A JP S54100495 A JPS54100495 A JP S54100495A
- Authority
- JP
- Japan
- Prior art keywords
- polyester
- compound
- acid
- mole
- terephthalic 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
Abstract
PURPOSE: To prepare steadily a polyester having high brightness and free from yellow discoloration, in an industrial scale, by carrying out the esterification reaction in the presence of a specific reducing material, and using an Sb compound as a polymerization catalyst.
CONSTITUTION: Terephthalic acid containing 100W1000 ppm of 4-carboxybensaldehyde is directly esterified with ethylene glycol in the presence of one or more compounds selected from sulfur dioxide, a phosphine compound, phosphorous acid, hypophosphorous acid and a phosphite ester, (0.05×10-5-2×10-5 mole on the basis of 1 mole of terephthalic acid). Subsequently the polycondensation is carried out in the presence of an antimony compound. A polyester having improved whiteness can be prepared with suppressing the undesirable effect of color-developing material existing in terephtalic acid, while keeping the antimony compound from reduction.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP708678A JPS54100495A (en) | 1978-01-25 | 1978-01-25 | Preparation of polyester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP708678A JPS54100495A (en) | 1978-01-25 | 1978-01-25 | Preparation of polyester |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54100495A true JPS54100495A (en) | 1979-08-08 |
Family
ID=11656270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP708678A Pending JPS54100495A (en) | 1978-01-25 | 1978-01-25 | Preparation of polyester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54100495A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62207325A (en) * | 1986-03-07 | 1987-09-11 | Konishiroku Photo Ind Co Ltd | Production of polyester |
JPH02251520A (en) * | 1989-03-24 | 1990-10-09 | Showa Highpolymer Co Ltd | Production of vinyl ester resin |
JPH03163191A (en) * | 1986-03-06 | 1991-07-15 | Nippon Shokubai Kagaku Kogyo Co Ltd | Preparation of anti-corrosion agent for metal |
CN111171295A (en) * | 2020-02-12 | 2020-05-19 | 东华大学 | High-efficiency flame-retardant resin and preparation method and application thereof |
-
1978
- 1978-01-25 JP JP708678A patent/JPS54100495A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03163191A (en) * | 1986-03-06 | 1991-07-15 | Nippon Shokubai Kagaku Kogyo Co Ltd | Preparation of anti-corrosion agent for metal |
JPS62207325A (en) * | 1986-03-07 | 1987-09-11 | Konishiroku Photo Ind Co Ltd | Production of polyester |
JPH02251520A (en) * | 1989-03-24 | 1990-10-09 | Showa Highpolymer Co Ltd | Production of vinyl ester resin |
CN111171295A (en) * | 2020-02-12 | 2020-05-19 | 东华大学 | High-efficiency flame-retardant resin and preparation method and application thereof |
CN111171295B (en) * | 2020-02-12 | 2022-06-14 | 东华大学 | High-efficiency flame-retardant resin and preparation method and application thereof |
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