Antimicrobial composite
AssigneeBeiersdorf AG
InventorsPeter Hilfenhaus, Heike John, Harald Büttner
Life of this patent
Estimating the term…
Abstract
An antimicrobial composite which comprises a first, liquid-permeable layer which is substantially completely bonded to a second liquid-absorbing layer. The first layer comprises a coating of at least one antimicrobial metal as such on the side which is bonded to the second layer. Substantially no antimicrobial metal in elemental form is present on exterior surfaces of the composite.
Claims20
An antimicrobial composite, wherein the composite comprises a first, liquid-permeable layer which is a polyethylene mesh that has openings having a size of from about 400 μm to about 700 μm to provide an open area of from about 15% to about 60% of a surface area of the first layer, which mesh is substantially completely laminated to a second liquid-absorbing layer having a liquid-absorbing capacity of at least about 400 g/m2 to provide a peeling strength between the first layer and the second layer of at least about 0.15 N/cm, which mesh comprises a coating of not more than about 80 mg/m2 silver as such on a side which faces the second layer, and wherein substantially no silver in elemental form is present on exterior surfaces of the composite, and the composite shows a 24-hour release of silver of at least about 0.1 mg/m2.
Dependencies are inferred from the claim text.