METHYL METHACRYLATE (MMA) COMPOSITION HAVING CONTROLLED REFRACTIVE INDEX AND CONTAINING SILICA FILLER AND METHOD FOR PRODUCING THE SAME, AND TRANSPARENT ACRYLIC RESIN COMPOSITION

摘要

To provide a methyl methacrylate (MMA) composition having a controlled refractive index and containing a silica filler, and a transparent acrylic resin.SOLUTION: A methyl methacrylate (MMA) composition has composite agglomerate particles having an inorganic agglomerate material being a granule composed of an agglomerate of an inorganic particle material composed of silica having a specific surface area particle diameter of 0.8 nm or more and 80 nm or less and an organic coating material composed of an organic matter covering the surface of the inorganic agglomerate material, and an MMA monomer dispersing the composite agglomerate material, in which a mass of the organic coating material is 0.8% or more and 80% or less based on the sum of the inorganic agglomerate material and the organic coating material.SELECTED DRAWING: None