| 摘要 |
PURPOSE: An epoxy resin hardener is provided to secure the room-temperature drying property, the low temperature drying property, and the corrosion resistance of the hardener, and to improve the flexibility, and the plasticity. CONSTITUTION: An epoxy resin hardener is obtained by additional reacting an ethoxylate or propoxylate bisphenol a-based epoxy resin with the weight average molecular weight of 100~2,000, with a resin selected from the group consisting of an ethylene diamine resin, a polyamide resin, or a phenalkamine resin.
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