JPS5659835A - Curing agent for epoxy resin - Google Patents
Curing agent for epoxy resinInfo
- Publication number
- JPS5659835A JPS5659835A JP13393679A JP13393679A JPS5659835A JP S5659835 A JPS5659835 A JP S5659835A JP 13393679 A JP13393679 A JP 13393679A JP 13393679 A JP13393679 A JP 13393679A JP S5659835 A JPS5659835 A JP S5659835A
- Authority
- JP
- Japan
- Prior art keywords
- anhydride
- curing agent
- epoxy resin
- isomers
- methyltetrahydrophthalic
- 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: To improve liquid stability of titled curing agent, by adding to the curing agent, methyltetrahydrophthalic anhydride and methylendomethylenetetrahydrophthalic anhydride, both of which consist of isomers in specified ratios.
CONSTITUTION: The epoxy resin curing agent is a liquid mixture containing 70W 55pts.wt. of methyltetrahydrophthalic anhydride and 30W45pts.wt. of methylendomethylenetetrahydrophthalic anhydride. The methyltetrahydrophthaic anhydride is constituted from isomers, i.e., (I) 3-methyltetrahydrophthalic anhydride (A) and (II) 4-methyltetrahydrophthalic anhydride (B), so that the weight ratio, (A)/(B), is 30/70W40/60. And the acid (B) is constituted from isomers, i.e., 4- methyl-Δ3-tetrahydrophthalic anhydride (C) and 4-methyl-Δ4-tetrahydrophthalic anhydride (D), so that the weight ratio, (C)/(D), is below 40/60.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13393679A JPS5659835A (en) | 1979-10-16 | 1979-10-16 | Curing agent for epoxy resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13393679A JPS5659835A (en) | 1979-10-16 | 1979-10-16 | Curing agent for epoxy resin |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5659835A true JPS5659835A (en) | 1981-05-23 |
JPS5728504B2 JPS5728504B2 (en) | 1982-06-17 |
Family
ID=15116524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13393679A Granted JPS5659835A (en) | 1979-10-16 | 1979-10-16 | Curing agent for epoxy resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5659835A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6175609U (en) * | 1984-10-23 | 1986-05-21 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5598223A (en) * | 1979-01-19 | 1980-07-26 | Hitachi Chem Co Ltd | Liquid epoxy resin hardener |
-
1979
- 1979-10-16 JP JP13393679A patent/JPS5659835A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5598223A (en) * | 1979-01-19 | 1980-07-26 | Hitachi Chem Co Ltd | Liquid epoxy resin hardener |
Also Published As
Publication number | Publication date |
---|---|
JPS5728504B2 (en) | 1982-06-17 |
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