FIBROUS HOLLOW SILICA FINE PARTICLE DISPERSION, FIBROUS HOLLOW SILICA FINE PARTICLES, ANTIREFLECTION FILM FORMING COMPOSITION CONTAINING THE FINE PARTICLES, AND SUBSTRATE WITH ANTIREFLECTION FILM

摘要

PROBLEM TO BE SOLVED: To provide a dispersion prepared by dispersing fibrous hollow silica fine particles having a low refractive index and excellent film forming property in a dispersion medium, and an antireflection film forming composition containing the silica fine particles.

SOLUTION: The fibrous hollow silica fine particle dispersion is prepared by dispersing the fibrous hollow silica fine particles having an average particle diameter in a range of 5-500 nm, a fiber form and a hollow structure in the dispersion medium. The fibrous hollow silica fine particles preferably have (a) an average particle diameter in a range of 5-500 nm, (b) a major axis to minor axis ratio (major axis/minor axis) in a range of 1.5-10, (c) a BET specific surface area in a range of 5-600 m2/g, and a refractive index in a range of 1.20-1.40.

COPYRIGHT: (C)2009,JPO&INPIT