| 摘要 |
There is provided a surface-modified-metal-oxide-particle material including surface-modified-metal-oxide-particles obtained by performing surface modification on metal oxide particles with a surface-modifying material, in which the surface-modifying material includes a predetermined silicone compound, an average primary particle diameter of the metal oxide particles is 3 nm to nm, viscosity at 25° C. is 1000 Pa·s or less, and transmittance of light at a wavelength of 400 nm to 800 nm and a thickness of 1 mm is 60% or greater, a composition for sealing optical semiconductor element, and an optical semiconductor device using the same. |
| 主权项 |
1. A surface-modified-metal-oxide-particle material comprising:
surface-modified-metal-oxide-particles obtained by performing a surface modification on metal oxide particles with a surface-modifying material, wherein the surface-modifying material includes a silicone compound represented by the following formula (1), an average primary particle diameter of the metal oxide particles is 3 nm to 10 nm, viscosity at 25° C. is 1000 Pa·s or less, and transmittance of light at a wavelength of 400 nm to 800 nm and a thickness of 1 mm is 60% or greater: wherein in the formula (1), X represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or an alkenyl group having 2 to 6 carbon atoms, and each of R1, R2, Ra, and Rb independently represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a phenyl group, or an alkenyl group having 2 to 6 carbon atoms, each of Z1 to Z3 independently represents an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a hydroxy group, a halogen atom, or a carboxy group, and at least one of them represents an alkoxy group having 1 to 6 carbon atoms, a hydroxy group, a halogen atom, or a carboxy group, n is an integer of 8 to 100, a plurality of Ra may be the same as or different from each other, and a plurality of Rb may be the same as or different from each other. |
