Precipitated silica; Fumed silica; Synthetic amorphous silica; Oxides; Silicates; Inorganic salts for industrial purposes; Chemical fillers for plastics; Chemical modifiers for plastics; Chemical modifiers for resins; Chemical modifiers for rubber; Chemical intensifiers for rubber; Chemical anti-blocking agents for use in the manufacture of plastic films; Chemical modifiers for films, namely, chemicals for use in the modification of plastic films; Chemical additives for use in the manufacture...