LAMINATED SHEET
The laminated sheet or laminated board has at least one outer covering layer which is normally insoluble in water and is connected to a reaction layer which is at least single-layered and is soluble in water and contains a solubiliser for the covering layer. In order to achieve complete tightness, a...
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Format: | Patent |
Sprache: | eng ; ger |
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Zusammenfassung: | The laminated sheet or laminated board has at least one outer covering layer which is normally insoluble in water and is connected to a reaction layer which is at least single-layered and is soluble in water and contains a solubiliser for the covering layer. In order to achieve complete tightness, at least the covering layer is constructed so as to be free from pores by extruding a film from a thermoplastic. The covering layer and/or the reaction layer of the film consist at least partially of materials with fertilising or soil-improving properties which are released when the film is degraded. The laminated sheet serves primarily for packaging purposes and can be constructed, for example, as a box. |
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