| abstract |
The low refractive index film-forming composition and the low-refractive-index film are contained in the decane oxide (A), and the fluoroalkyl group-containing decane oxide (B) is mixed, and for this mixture, water (C) and formic acid (D) are mixed. And a hydrolyzate of the above mixture is formed with the organic solvent (E), and in the hydrolyzate, the cerium oxide sol (F) in which the beaded colloidal cerium oxide particles have been dispersed in a liquid medium is further prepared and prepared. |