| abstract |
[PROBLEMS] To provide an epoxy resin curing agent, a modifier, and an amino group serving as an intermediate thereof, which provide a cured product having excellent flame retardancy, high heat resistance, moisture resistance, and excellent adhesion to dissimilar materials. Alternatively, provision of an imide group-containing polyvalent hydroxy compound. An amino group-containing polyvalent hydroxy compound can be represented by the following general formula (1), and an aromatic amine and an aldehyde are added in an amount of 0.05 to 1 mol per mol of a phenol ring in a phenol. It can be obtained by reacting using 1.5 mol. In the formula, X is a direct bond, —O—, —S—, —SO 2 —, —CO— or a divalent hydrocarbon group, and the average of m is 0.05 to 1.5. [Selection figure] None |