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US 6,656,491 B1Granted
Active substance plasters
AssigneeBeiersdorf AG
InventorsKatharina Brosck, Peter Jauchen, Ulrich Köhler, Peter Himmelsbach, Matthias Wasner
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Abstract
Active substance plasters consisting of a backing material and an at least partially applied adhesive composition, characterized in that a component comprising one or more active substances is additionally applied in the form of spun fibres or filaments to the backing material, this component having an at least partly thermoplastic basis.
Claims36
Active substance plaster comprising a backing material and an adhesive composition, wherein,
- a) the adhesive composition is in the form of fibers or filaments, said fibers or filaments further comprising a mixture of foamed adhesive and at least one active substance,
- b) the adhesive composition comprises at least one thermoplastic component, and
- wherein the percentage of the backing material's surface area to which the adhesive composition is applied is less than 100%.
Active substance plasters according to clalm 1, wherein the fibre or the filament has a thickness of less than 300 μm.
Dependencies are inferred from the claim text.