| 摘要 |
PROBLEM TO BE SOLVED: To provide a silicone resin composition which is high in light reflection coefficient, reliability and productivity, and suitable for a light reflective resin layer of a light-emitting device.SOLUTION: A silicone resin composition comprises: a resin mixture including a base resin and fine particles of a titanium oxide added as filler. The base resin is an addition reaction curing type silicone resin which includes organopolysiloxane including an alkenyl group binding to a silicon atom, and organohydrogenpolysiloxane including a hydrogen atom binding to a silicon atom, and is cured by an addition reaction by a hydrosilylated catalyst including a platinum group metal. The titanium oxide is a rutile type titanium oxide subjected to a surface treatment with alumina, of which the average particle diameter is 1 μm or larger. The addition amount of the titanium oxide is 70-130 pts.wt. to 100 pts.wt. of the base resin.SELECTED DRAWING: Figure 1 |
