Patent ID: 8810046

Claim:
A silicone resin composition comprising: a cage octasilsesquioxane having a group represented by the following formula (1), an alkenyl group-containing polysiloxane containing an alkenyl group having a number of moles larger than that of a hydrosilyl group in the cage octasilsesquioxane, a hydrosilylation catalyst, and an organohydrogenpolysiloxane (where, in the formula, R 1 represents a monovalent hydrocarbon group selected from a saturated hydrocarbon group and an aromatic hydrocarbon group; R 2 represents hydrogen or a monovalent hydrocarbon group selected from a saturated hydrocarbon group and an aromatic hydrocarbon group; the molar ratio of the monovalent hydrocarbon group:hydrogen in R 2 in the cage octasilsesquioxane as a whole is, as an average value, in the range of 6.5:1.5 to 5.5:2.5).