| 摘要 |
PURPOSE:To obtain the title composition which is excellent in leveling property and can give a cured product excellent in strength, by mixing an epoxy resin with a curing agent, spherical silica and microparticulate silica. CONSTITUTION:A filler (c) is obtained by mixing spherical silica (i) of a particle diameter of 10-30mum with microparticulate silica of a particle diameter smaller than that of component (i) at a component (i) to component (ii) mixing ratio of 1-5/1. An epoxy resin (a) (e.g., bisphenol A epoxy resin) is mixed with 10-30PHR, based on component (a), epoxy curing agent (b) (e.g., 2,4- dihydrazino-6-methylamino-sym-triazine), 30-80% (filler ratio) component (c) and, optionally, a cure accelerator (e.g., 2-ethylmethylimidazole), a coupling agent, a thixotropic agent, a leveling agent, a diluent, a flame retardant, a lubricant, etc., (d).
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