Preparation, consisting of acrylates and amorphous silicon dioxide, 2-Propenoic acid, (5-ethyl-1,3-dioxan-5-yl)methyl ester, 2-Propenoic acid, 2-ethyl-2-[[(1-oxo-2-propenyl)oxy]methyl]-1,3-propanediyl, 5-Ethyl-1,3-dioxane-5-methanol, trimethylolpropane trimethacrylate