| abstract |
A composition for a silicone resin capable of providing a silicone resin that exhibits thermoplasticity and thermosetting properties and is excellent in light resistance and heat resistance, a resin composition obtained by reacting the composition, and the composition An optical semiconductor element sealing material and an optical semiconductor device sealed with the sealing material are provided. A component containing two kinds of reactions, an isocyanate group reaction and a hydrosilylation reaction, comprising both terminal amino-type silicone resin, organohydrogensiloxane, diisocyanate, and hydrosilylation catalyst. Composition for silicone resin. [Selection figure] None |