| abstract |
Packaging material of at least two-layer composite of glued paper or glued cardboard and at least one water-impermeable film for producing containers for the packaging of liquids, wherein the paper or cardboard is a finely divided water-insoluble or water-swellable synthetic polymer having an average particle size of 1 .mu.m to 1000 .mu.m contains, and use of paper products, which are each available through (i) mass sizing of a paper stock in the presence of a finely divided water-insoluble or water-swellable synthetic polymer having an average particle size of from 1 μm to 1000 μm, (ii) dewatering the stock on the wire of a paper machine, (iii) drying the paper product and (iv) laminating the paper product on one or both sides with a film of a plastic and / or metal, for the production of containers for the packaging of liquids, in particular of beverages. |