Anti-tarnishing chemicals for windows; Chemical preparations for use in the manufacture of anti-tarnishing preparations for surfaces including windows; Chemicals used in the manufacture of paper; Chemicals for use in the manufacture of paper; Detergents for industrial use; Industrial chemicals; Leather-waterproofing chemicals; Mold-release preparations; Mould-release preparations; Stain-preventing chemicals for use on fabrics; Textile-impregnating chemicals; Textile-waterproofing chemicals