MASTERBATCH TYPE HARDENER COMPOSITION, ONE-PART EPOXY RESIN COMPOSITION AND MOLDED ARTICLE USING THE SAME, AND METHOD FOR PRODUCING THE MASTERBATCH TYPE HARDENER COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a masterbatch type hardener composition which is excellent in rapid hardenability, solvent resistance and storage stability.SOLUTION: The masterbatch type hardener composition is obtained by heat-treating a composition including a microcapsule type hardener (a) having a core and a shell covering the core, and an epoxy resin (b). The ratio (I/II) of the half-value width of DSC measurement peak (peak I) of the composition after the heat treatment to the half-value width of DSC measurement peak (peak II) of the composition before the heat treatment is in the range of 50-95%.