The present invention relates to a silicone resin composition that can be
used for a roll film having small birefringence, the silicone resin
composition being suitable for, for example, optical applications, and a
window material for an automobile, the silicone resin composition having
high heat resistance, the silicon resin composition being stained at a
low level, the silicone resin composition having a low thermal expansion
coefficient, the silicone resin composition enabling a transparent
conductive film to be stably formed, and the silicone resin composition
providing good winding property. The silicone resin composition contains:
A) a silicone resin mainly composed of a polyorganosilsesquioxane having
a cage-type structure in a structural unit, the polyorganosilsesquioxane
being represented by [RSiO.sub.3/2].sub.n (wherein R is an organic
functional group having a (meth)acryloyl group and n is 8, 10, or 12); B)
an oligomer that is radically copolymerizable with the silicone resin,
the oligomer containing an unsaturated group represented by
--R.sup.3--CR.sup.4.dbd.CH.sub.2 or --CR.sup.4.dbd.CH.sub.2 in a
molecule, and the oligomer having a urethane bond; and C) an other
unsaturated compound that is radically copolymerizable with the silicone
resin. In the silicone resin composition, the silicone resin, the
oligomer, and the other unsaturated compound are compounded at a weight
ratio of 5 to 80:1 to 50:0 to 80.