| 摘要 |
The present invention provides an addition-hardening type silicone composition having low refractive index, high transparency, excellent light extraction efficiency, good rubber properties, and solidity. Furthermore, the addition-hardening type silicone composition of the present invention does not have a tack after the hardening process, and provides a high-quality cured product having good light transmittance of 400 nm of wavelength at 25°C. The addition-hardening type silicone composition comprises: a linear chain type organopolysiloxane having CF3-(CF2)y-(CH2)z-group bound to the silicon atom, and an aliphatic unsaturated group bound to the silicon atom (A); an organopolysiloxane having branched structure represented as SiO4/2 and/or RSiO3/2, CF3-(CF2)y-(CH2)z-group bound to the silicon atom, and the aliphatic unsaturated group bound to the silicon atom (B); an organic silicon compound having hydrogen atom bound to the silicon atom represented by the following formula (1)(C); a platinum group metal-based catalyst (D). |
