JPS5731922A - Aftertreatment of crude epoxy compound - Google Patents
Aftertreatment of crude epoxy compoundInfo
- Publication number
- JPS5731922A JPS5731922A JP10514080A JP10514080A JPS5731922A JP S5731922 A JPS5731922 A JP S5731922A JP 10514080 A JP10514080 A JP 10514080A JP 10514080 A JP10514080 A JP 10514080A JP S5731922 A JPS5731922 A JP S5731922A
- Authority
- JP
- Japan
- Prior art keywords
- epoxy compound
- compound
- alkali metal
- metal hydroxide
- epihalohydrin
- 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)
- Organic Insulating Materials (AREA)
Abstract
PURPOSE: To decrease the hydrolyzable chlorine content of a crude epoxy compound obtained from a polyhydric phenol and an epihalohydrin, by treating the crude compound in a mixed system of an aqueous alkali metal hydroxide solution and a hydrophobic solvent containing a quat. ammonium salt (group).
CONSTITUTION: A crude epoxy compound (A) prepared by reacting a polyhydric phenol, e.g., bisphenol A, with an epihalohydrin, e.g., epichlorohydrin (if the compound contains any unreacted epihalohydrin, after removing it) is diluted with a hydrophodic solvent, e.g., toluene, then, mixed with 0.01W3wt%, based on compound A, quat. ammonium salt (group), e.g., benzyl-triethylammonium chloride, further mixed with an aqueous alkali metal hydroxide solution in an amount to provide 1.1W2 alkali metal hydroxide molecules per hydrolyzable chlorine atom and agitated at 60W90°C. The aqueous layer formed is separated and the hydrophobic solvent is distilled off to obtain an epoxy compound.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10514080A JPS5731922A (en) | 1980-08-01 | 1980-08-01 | Aftertreatment of crude epoxy compound |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10514080A JPS5731922A (en) | 1980-08-01 | 1980-08-01 | Aftertreatment of crude epoxy compound |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5731922A true JPS5731922A (en) | 1982-02-20 |
JPS6231728B2 JPS6231728B2 (en) | 1987-07-10 |
Family
ID=14399439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10514080A Granted JPS5731922A (en) | 1980-08-01 | 1980-08-01 | Aftertreatment of crude epoxy compound |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5731922A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004069893A1 (en) * | 2003-02-03 | 2004-08-19 | Nippon Steel Chemical Co., Ltd. | Epoxy resin, process for producing the same, epoxy resin composition containing the same, and cured object |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1387668A (en) * | 1971-03-26 | 1975-03-19 | Ciba Geigy Ag | Methylolglycidyl ethers and process for their manufacture |
JPS5490400A (en) * | 1977-12-20 | 1979-07-18 | Shell Int Research | Preparation of polyglycidyl ethers |
JPS55141479A (en) * | 1979-04-19 | 1980-11-05 | Shell Int Research | Manufacture of polyglycidylether of polyhydric phenol |
-
1980
- 1980-08-01 JP JP10514080A patent/JPS5731922A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1387668A (en) * | 1971-03-26 | 1975-03-19 | Ciba Geigy Ag | Methylolglycidyl ethers and process for their manufacture |
JPS5490400A (en) * | 1977-12-20 | 1979-07-18 | Shell Int Research | Preparation of polyglycidyl ethers |
JPS55141479A (en) * | 1979-04-19 | 1980-11-05 | Shell Int Research | Manufacture of polyglycidylether of polyhydric phenol |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004069893A1 (en) * | 2003-02-03 | 2004-08-19 | Nippon Steel Chemical Co., Ltd. | Epoxy resin, process for producing the same, epoxy resin composition containing the same, and cured object |
JPWO2004069893A1 (en) * | 2003-02-03 | 2006-05-25 | 新日鐵化学株式会社 | Epoxy resin, method for producing the same, epoxy resin composition using the same, and cured product |
JP4675777B2 (en) * | 2003-02-03 | 2011-04-27 | 新日鐵化学株式会社 | Epoxy resin, production method thereof, epoxy resin composition and cured product using the same |
Also Published As
Publication number | Publication date |
---|---|
JPS6231728B2 (en) | 1987-07-10 |
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