JPS56115732A - Decoloring method of dihydroxydiphenylmethane - Google Patents
Decoloring method of dihydroxydiphenylmethaneInfo
- Publication number
- JPS56115732A JPS56115732A JP1924680A JP1924680A JPS56115732A JP S56115732 A JPS56115732 A JP S56115732A JP 1924680 A JP1924680 A JP 1924680A JP 1924680 A JP1924680 A JP 1924680A JP S56115732 A JPS56115732 A JP S56115732A
- Authority
- JP
- Japan
- Prior art keywords
- dihydroxydiphenylmethane
- colored
- organic solvent
- solution
- boron hydride
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain dihydroxydiphenylmethane useful as a raw material for an epoxy resin of low viscosity readily, by decoloring under heating a colored dihydroxydiphenylmethane solution in an organic solvent at a low temperature with sodium boron hydride.
CONSTITUTION: A colored dihydroxydiphenylmethane solution in an organic solvent, e.g. benzene or epichlorophyrin, is heat-treated at 0W150°C, preferably at 0W100°C, with sodium boron hydride in an amount of 0.001W1wt% based on the dihydroxydiphenylmethane, usually for 1W2hr, to give a decolored dihydroxydiphenylmethane. The dihydroxydiphenylmethane is obtained by the reaction of phenol with formaldehyde.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1924680A JPS6052737B2 (en) | 1980-02-20 | 1980-02-20 | Decolorization method for dihydroxydiphenylmethane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1924680A JPS6052737B2 (en) | 1980-02-20 | 1980-02-20 | Decolorization method for dihydroxydiphenylmethane |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56115732A true JPS56115732A (en) | 1981-09-11 |
JPS6052737B2 JPS6052737B2 (en) | 1985-11-21 |
Family
ID=11994046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1924680A Expired JPS6052737B2 (en) | 1980-02-20 | 1980-02-20 | Decolorization method for dihydroxydiphenylmethane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6052737B2 (en) |
-
1980
- 1980-02-20 JP JP1924680A patent/JPS6052737B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6052737B2 (en) | 1985-11-21 |
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