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AssigneeSika Technology AG
InventorsFlorian Baumeister, Marc Zintel, Tobias Bosse, Thomas Semlinger, Florian Ellenrieder, Oliver Marek
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The present invention relates to a sack for liquid or pulverulent materials having an areal section (F) composed of a water-soluble polymer, wherein dissolution of the water-soluble polymer gives rise to an opening through which the sack can be emptied, to a sack according to the invention that contains a liquid or pulverulent material, to a method for the emptying thereof and the production thereof, and also to the use of the sack for the packing of liquid or pulverulent materials and to the use of an areal section (F) composed of a water-soluble polymer as part of a sack for liquid or pulverulent materials for the reduction of the release of unpleasant odors and/or harmful substances into the air, especially for the reduction of the release of alveoli-reaching dusts.
A sack for liquid or pulverulent filling materials having a portion composed of water-insoluble paper and/or water-insoluble polymer and an areal section (F) composed of a water-soluble polymer, wherein the areal section (F) accounts for more than 5% and not more than 35% of the surface area of the sack, wherein the areal section (F) is in direct contact with the filling materials of the sack, and wherein dissolution of the water-soluble polymer gives rise to an opening through which the sack can be emptied.
Dependencies are inferred from the claim text.