Nanocomposite particle and molecular wrapping method

摘要

A nanocomposite particle comprises a core particle being one organic molecule or an assembly of organic molecules; and a shell layer enclosing the core particle and comprising organic titanosilicate which comprises an Si and Ti oxide containing a bond expressed by M-O-M, where M is Si or Ti, and has an organic group bonded to at least part of silicon atoms. Because of being enclosed by the shell layer, the organic molecule is shielded from substances causing degradation of the organic molecule. Therefore, when the organic molecule contains an ultraviolet absorbing molecule or a pigment molecule, its ultraviolet absorbing effect or its coloring property is maintained for a long time. Besides, since the shell layer comprises organic titanosilicate, the nanocomposite particle is excellent in dispersibility, for example, in a coating composition including resin vanish.