JPS55129417A - Epoxy resin composition - Google Patents
Epoxy resin compositionInfo
- Publication number
- JPS55129417A JPS55129417A JP3756979A JP3756979A JPS55129417A JP S55129417 A JPS55129417 A JP S55129417A JP 3756979 A JP3756979 A JP 3756979A JP 3756979 A JP3756979 A JP 3756979A JP S55129417 A JPS55129417 A JP S55129417A
- Authority
- JP
- Japan
- Prior art keywords
- anhydride
- epoxy resin
- resin composition
- mixture
- curing agent
- 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
Abstract
PURPOSE: An epoxy resin composition that contains a mixture of liquid acid anhydride mainly containing methyl-Δ'-tetrahydrophthalic anhydride resulting from the isomerization of methyltetrahydrophthalic anhydride as a curing agent, thus absorbing little moisture.
CONSTITUTION: The isomerization reaction of methyltetrahydrophthalic anhydride is conducted in the presence of a palladium catalyst, preferably 1W5wt% of palladium metal on a carrier such as carbon, along with sulfur or its compound in an amount of 1W200ppm as sulfur atom to produce a liquid mixture of acid anhydrides, that is, (A) 80W100wt% of methyl-Δ'-tetrahydrophthalic anhydride and (B) less than 10wt% of the disproportionation reaction products such as methylhexahydrophthalic anhydride. The mixture is uses as a curing agent to give said epoxy resin composition.
EFFECT: Said composition resists crystallization formation, has high operability because of its low viscosity, has high-temperature stability and long pot life.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3756979A JPS55129417A (en) | 1979-03-28 | 1979-03-28 | Epoxy resin composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3756979A JPS55129417A (en) | 1979-03-28 | 1979-03-28 | Epoxy resin composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55129417A true JPS55129417A (en) | 1980-10-07 |
JPS579738B2 JPS579738B2 (en) | 1982-02-23 |
Family
ID=12501150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3756979A Granted JPS55129417A (en) | 1979-03-28 | 1979-03-28 | Epoxy resin composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55129417A (en) |
-
1979
- 1979-03-28 JP JP3756979A patent/JPS55129417A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS579738B2 (en) | 1982-02-23 |
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