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Coating for protecting dazzling effect

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By: KERRY PIANOFORTE

Editor, Coatings World, Coatings World

U.S. 7,806,979 B2

LG Chem, Ltd. has obtained a patent for an antiglare film comprised of a substrate; and an antiglare coating composition coated on the substrate, the antiglare coating composition is comprised of an acrylate binder resin; 2- 30% weight of inorganic fine particles selected from a group consisting of alumina, aluminum hydroxide, magnesium oxide, antimony oxide, and silica having an average particle size ranging from 0.4 ÎĽm to less than 1 ÎĽm, wherein the refractive index of the fine particles varies between 0.2-0.5 from the refractive index of the acrylate binder resin, based on the weight of acrylate binder resin; and 1-20% weight of inorganic fine particles selected from a group consisting of alumina, aluminum hydroxide, magnesium oxide, antimony oxide, and silica, having an average particle size of 1 to 3 ÎĽm, wherein the refractive index of the fine particles varies within 0.1 from the refractive index of the acrylate binder resin, based on the weight of acrylate binder resin, and wherein the internal diffusion haze of the film ranges from 15-40 and surface haze of the film is less than 15.

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