SILICA PARTICLE-CONTAINING FINE CONCAVO-CONVEX STRUCTURAL BODY

摘要

PROBLEM TO BE SOLVED: To provide a silica particle-containing fine concavo-convex structural body having uniform thickness as well as good hardness and scratch resistance.SOLUTION: A silica particle-containing fine concavo-convex structural body having a fine concavo-convex structure satisfies conditions (1) through (3) below. (1) The structural body has a plurality of protrusions 13 on a surface thereof, the protrusions having a pitch w1 of 50-400 nm. (2) The structural body is a cured product of a curable composition containing surface-processed fine silica particles (a), a polymerizable component, and a polymerization initiator, where the surface-processed fine silica particles (a) are obtained by surface-processing unprocessed fine silica particles (a0) having a number average particle diameter of no less than 30 nm using a specific silane compound (e) and another specific silane compound (f). (3) The unprocessed fine silica particles (a0) have a number average particle diameter that is 50-300% of a protrusion pitch w1.