| 摘要 |
PURPOSE:The titled lowly viscous, low-temperature curable composition which can form a cured product of excellent heat resistance, prepared by mixing a specified epoxy resin with pyromellitic anhydride. CONSTITUTION:A polyglycidylamino compound of the formula (wherein R is phenylene or cyclohexylene), e.g., N,N,N',N'-tetraglycidyl-m-xylylenediamine, and an epoxycyclohexyl group-containing alicyclic epoxy resin (e.g., 3,4- epoxycyclohexyl 3,4-epoxycyclohexanecarboxylate) are used. Namely, a mixture of 20-80wt% said polyglycidylamino compound and 80-20wt% said alicyclic epoxy resin is mixed with pyromellitic anhydride in an amount to provide about 0.6-1.2 equivalent of the anhydride groups per equivalent of the epoxy groups.
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