| abstract |
An addition product obtained by reacting (a) a polyfunctional epoxy compound, (b) a compound having at least one functional group of OH group, NH 2 group, NH group and SH group together with a tertiary amino group in the molecule and (c) a carboxylic acid anhydride are good curing agents for epoxy resin. The curing agents are useful in formulating novel storable one-package, heat-curable epoxy resin-based compositions. |