JPS5774326A - Production of bromine-containing epoxy resin - Google Patents
Production of bromine-containing epoxy resinInfo
- Publication number
- JPS5774326A JPS5774326A JP15013980A JP15013980A JPS5774326A JP S5774326 A JPS5774326 A JP S5774326A JP 15013980 A JP15013980 A JP 15013980A JP 15013980 A JP15013980 A JP 15013980A JP S5774326 A JPS5774326 A JP S5774326A
- Authority
- JP
- Japan
- Prior art keywords
- bromine
- epoxy resin
- epihalohydrin
- reaction
- mixture
- 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
- Epoxy Resins (AREA)
Abstract
PURPOSE: To produce the titled epoxy resin having low melt viscosity and being readily withdrawn from a reaction kettle, by reating specified two alkanes with an epihalohydrin and, then, dehydrohalogenating the product.
CONSTITUTION: A mixture (mol. ratio 1W4:1) of a bis(hydroxyphenyl)-alkane and a bromine-substituted 2,2-bis(4-hydroxyphenyl)alkane and an epihalohydrin in an amount of 3 times, by mol., as much as the mixture are subjected to an addition reaction at 30W90°C for 4W6hr in the presence of an addition catalyst, e.g., NaOH. Then, a dehydrohalogenating agent such as an alkali metal hydroxide is added to the reaction product, the resulting mixture is subjected to a dehydrohalogenation reaction at 60W90°C for several hr and the excess epihalohydrin and the formed alkali metal halide are removed to obtain a normally liquid, bromine-containing epoxy resin, bromine content ≥16wt%.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15013980A JPS5774326A (en) | 1980-10-28 | 1980-10-28 | Production of bromine-containing epoxy resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15013980A JPS5774326A (en) | 1980-10-28 | 1980-10-28 | Production of bromine-containing epoxy resin |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5774326A true JPS5774326A (en) | 1982-05-10 |
Family
ID=15490336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15013980A Pending JPS5774326A (en) | 1980-10-28 | 1980-10-28 | Production of bromine-containing epoxy resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5774326A (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5315958A (en) * | 1976-07-27 | 1978-02-14 | Singer Co | Sewing machine with stitch forming device |
JPS5446649A (en) * | 1977-09-19 | 1979-04-12 | Sharp Kk | Electronic sewing machine |
JPS54117266A (en) * | 1978-03-02 | 1979-09-12 | Ritsukaa Mishin Kk | Electronic sewing machine |
JPS54123354A (en) * | 1978-03-15 | 1979-09-25 | Janome Sewing Machine Co Ltd | Electronic sewing machine |
JPS558626A (en) * | 1978-06-30 | 1980-01-22 | Toshiba Corp | Signal recording and reproducing system |
-
1980
- 1980-10-28 JP JP15013980A patent/JPS5774326A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5315958A (en) * | 1976-07-27 | 1978-02-14 | Singer Co | Sewing machine with stitch forming device |
JPS5446649A (en) * | 1977-09-19 | 1979-04-12 | Sharp Kk | Electronic sewing machine |
JPS54117266A (en) * | 1978-03-02 | 1979-09-12 | Ritsukaa Mishin Kk | Electronic sewing machine |
JPS54123354A (en) * | 1978-03-15 | 1979-09-25 | Janome Sewing Machine Co Ltd | Electronic sewing machine |
JPS558626A (en) * | 1978-06-30 | 1980-01-22 | Toshiba Corp | Signal recording and reproducing system |
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