| abstract |
PROBLEM TO BE SOLVED: To provide a treated inorganic solid useful for producing a polymer composition such as a masterbatch. SOLUTION: The treated inorganic solid is composed of a granular inorganic substance, and the particles are coated with an alkylphosphonic acid containing 6 to 22 carbon atoms or an ester thereof, and the granular inorganic substance is used. The substances are usually pigments, extenders or fillers, by mixing them with alkylphosphonic acids or their esters, for example in aqueous dispersions or during process steps such as milling. It is processed. |