ZIRCONIUM OXIDE PARTICLE DISPERSION LIQUID, ZIRCONIUM OXIDE PARTICLE-CONTAINING PHOTOHARDENING COMPOSITION, AND HARDENED FILM

摘要

A zirconium oxide particle dispersion liquid excelling in storage stability, composed of zirconium oxide particles, a metal complex and a dispersion medium. Further, there is provided a zirconium oxide particle-containing photohardening composition composed of zirconium oxide particles, a metal complex, an actinic energy ray hardening compound, a photopolymerization initiator and a dispersion medium, which composition not only enables forming of a hardened film excelling in transparency and having high refractive index on a substratum surface but also would not corrode metal-made devices and coating equipment materials used in dispersing stage. Still further, there is provided a hardened film excelling in transparency and having high refractive index, obtained by applying the zirconium oxide particle-containing photohardening composition onto a substratum by coating or printing and hardening the same.