| abstract |
This invention provides a curable silicone resin composition, which yields a cured product that is transparent and displays excellent hardness and flexural strength. The composition includes (A) an aromatic ring-containing hydrocarbon compound containing at least 2 silicon-bonded hydrogen atoms, in which the silicon atoms are bonded to the hydrocarbon skeleton; (B) an organopolysiloxane with a branched or three dimensional network structure, and with a viscosity at 25 DEG C of at least 1,000 mPa.s, having an average composition formula (1): R1xSiO{(4-x)2} (1), in which R1 independently represents a substituted or unsubstituted monovalent hydrocarbon group, a substituted or unsubstituted hydrocarvyloxy group, or a hydroxyl group, provided from 0.1 to 80 mol % of all the R1 groups are alkenyl groups, and x represents a positive number that satisfies 1≤x<2; and (C) a hydrosilylation reaction catalyst. |