JPS57170922A - Preparation of solid epoxy resin - Google Patents
Preparation of solid epoxy resinInfo
- Publication number
- JPS57170922A JPS57170922A JP5740381A JP5740381A JPS57170922A JP S57170922 A JPS57170922 A JP S57170922A JP 5740381 A JP5740381 A JP 5740381A JP 5740381 A JP5740381 A JP 5740381A JP S57170922 A JPS57170922 A JP S57170922A
- Authority
- JP
- Japan
- Prior art keywords
- equivalent
- resin
- alkali metal
- metal hydroxide
- aqueous solution
- 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.)
- Granted
Links
Landscapes
- Epoxy Resins (AREA)
Abstract
PURPOSE: To prepare the colorless titled resin, in high yeild, by adding an aqueous solution of an alkali metal hydroxide in two stages to the reaction system during the reaction of a dihydric phenol with epichlorohydrin in an organic solvent.
CONSTITUTION: A dihydric phenol (e.g. bisphenol A) and 0.5W0.8mol of epichlorohydrin (based on 1 equivalent of the phenolic hydroxyl group) are dissolved in an organic solvent (e.g. methyl isobutyl ketone). The amount of the solvent is 30W 70wt% of bisphenol A. 0.15 Equivalent of an aqueous solution of an alkali metal hydroxide (based on 1 equivalent of the phenolic hydroxyl group) is added to the above solution in the absence of oxygen (in an inert gas atmosphere) and made to react e.g. at 50W80°C (preferably 60W70°C) for 1W2hr to obtain a resin solution. The resin solution is further incorporated slowly with 0.50W0.70 equivalent of an aqueous solution of an alkali metal hydroxide and made to react e.g. at 60W100°C (preferably 80W90°C) for 1W3hr to obtain the objective resin.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5740381A JPS57170922A (en) | 1981-04-15 | 1981-04-15 | Preparation of solid epoxy resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5740381A JPS57170922A (en) | 1981-04-15 | 1981-04-15 | Preparation of solid epoxy resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57170922A true JPS57170922A (en) | 1982-10-21 |
| JPS6138929B2 JPS6138929B2 (en) | 1986-09-01 |
Family
ID=13054668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5740381A Granted JPS57170922A (en) | 1981-04-15 | 1981-04-15 | Preparation of solid epoxy resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57170922A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6466224A (en) * | 1987-08-13 | 1989-03-13 | Dow Chemical Co | Production of epoxy resin reduced in content of undersired halogen |
| JPH01168680A (en) * | 1987-12-23 | 1989-07-04 | Asahi Chiba Kk | Production of epoxy compound |
| CN1064976C (en) * | 1994-10-17 | 2001-04-25 | 布兰科尼尔有机合成研究院 | Process for making solid epoxy resin |
| WO2010016987A1 (en) * | 2008-08-05 | 2010-02-11 | Dow Global Technologies Inc. | Production of solid epoxy resin |
| CN103923299A (en) * | 2014-04-15 | 2014-07-16 | 江苏扬农锦湖化工有限公司 | Hard resin production technology |
-
1981
- 1981-04-15 JP JP5740381A patent/JPS57170922A/en active Granted
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6466224A (en) * | 1987-08-13 | 1989-03-13 | Dow Chemical Co | Production of epoxy resin reduced in content of undersired halogen |
| JPH01168680A (en) * | 1987-12-23 | 1989-07-04 | Asahi Chiba Kk | Production of epoxy compound |
| JP2565960B2 (en) * | 1987-12-23 | 1996-12-18 | 旭チバ株式会社 | Method for producing epoxy compound |
| CN1064976C (en) * | 1994-10-17 | 2001-04-25 | 布兰科尼尔有机合成研究院 | Process for making solid epoxy resin |
| WO2010016987A1 (en) * | 2008-08-05 | 2010-02-11 | Dow Global Technologies Inc. | Production of solid epoxy resin |
| US20110130537A1 (en) * | 2008-08-05 | 2011-06-02 | Dow Global Technologies Lld | Production of solid epoxy resin |
| CN103923299A (en) * | 2014-04-15 | 2014-07-16 | 江苏扬农锦湖化工有限公司 | Hard resin production technology |
| CN103923299B (en) * | 2014-04-15 | 2016-04-20 | 江苏扬农锦湖化工有限公司 | A kind of production technique of solid resin |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6138929B2 (en) | 1986-09-01 |
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