| 摘要 |
PROBLEM TO BE SOLVED: To provide an epoxy resin composition the hardened product of which has excellent acid resistance and is favorably used especially for a flooring material, a coating and the like and its hardened product. SOLUTION: The epoxy resin composition contains an epoxy resin (A) and an amine-based hardener (B1). The amine-based hardener (B1) is a Mannich-modified amine-based hardener obtained by condensing (b1) a polyamine, (b2) an aldehyde and (b3) an alkylphenol having two or more 1-8C alkyl groups as substituents on the aromatic ring. The hardened product is obtained by hardening the composition. COPYRIGHT: (C)2008,JPO&INPIT
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