A sectional packaging box for packaging a product includes two side panels and two bendable end connectors. The two side panels each define a notch and are oppositely arranged. The two bendable end connectors each define two long slots and are oppositely arranged. The two side panels and the two end connectors cooperatively form an enclosed space. The two side panels latch within the long slots, and the two end connectors. An end of the two end connectors latch within the notches.

Described is paper or cardboard packaging produced from mineral oil contaminated, (e.g., recycled) paper, wherein the packaging includes a barrier layer obtainable by applying an aqueous polymer dispersion comprising a copolymer obtainable by emulsion polymerization of C.sub.1-C.sub.4 alkyl (meth)acrylates, acid monomers, e.g., acrylic acid or methacrylic acid, 0-20 wt % of acrylonitrile and 0 to 10 wt % of further monomers in an aqueous medium in the presence of a carbohydrate compound, preferably in the form of a degraded starch, wherein the glass transition temperature of the copolymer is in the range from +10 to +45 C. The barrier layer may be situated on one of the surfaces of the packaging or form one of multiple layers of a multilayered packaging coating or be situated as a coating on one side of an inner bag situated within the packaging.