| abstract |
An object of the present invention is to provide an antireflection optical article excellent in transparency and scratch resistance, and a siloxane-based resin composition which is an antireflection laminate. An antireflection optical article comprising a high refractive index layer and a low refractive index layer laminated on at least one surface on a transparent film substrate directly or via another layer. . High refractive index layer: Mainly a siloxane-based resin composition obtained by a method in which an alkoxysilane compound is hydrolyzed with an acid catalyst in a solvent in the presence of metal oxide particles, and then the hydrolyzate is subjected to a condensation reaction. A film having a thickness of 2.5 μm or more and 45 μm or less, which is obtained by applying and then curing the coating solution containing the low refractive index layer: containing a siloxane-based low refractive index resin composition containing inorganic fine particles and a siloxane compound as a main component. A film obtained by applying a coating liquid to be cured and then curing, and having a refractive index smaller than that of the high refractive index layer by 0.20 or more. [Selection figure] None |