HIGHLY REFRACTIVE SURFACE TREATMENT AGENT, AND FINE MEMBER AND OPTICAL MATERIAL SURFACE-TREATED BY USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a silicon-based surface treatment agent which can modify surfaces of various substrates, particularly, surfaces of optical fine members having a microparticulate or a highly refined structure to have hydrophobicity, fine dispersibility and dispersion stability and which has a high refractive index and high transparency.;SOLUTION: The surface treatment agent comprises the following organic silicon compound. The organic silicon compound has a functional group selected from a highly polar functional group, a hydroxyl group-containing group, a silicon atom-containing hydrolyzable group or metal salt derivatives thereof bonded to silicon atoms directly or via a functional group with a valency of (n+1) (where n is a number equal to 1 or greater) and has at least one structure in the molecule in which the silicon atoms are bonded to any siloxane unit represented by R¹₃SiO_1/2, R¹₂SiO_2/2, R¹SiO_3/2 and SiO_4/2; and the organic silicon compound has a refractive index of 1.45 or more at 25°C.;COPYRIGHT: (C)2014,JPO&INPIT