초록 ▼

A film plaster, especially for covering wounds and preventing or treating blisters, which comprises a two-layer elastic film, the upper layer being harder and thinner than the lower layer, and being structured, and the surface of the lower layer being coated, where appropriate, with a pressure-sensi

A film plaster, especially for covering wounds and preventing or treating blisters, which comprises a two-layer elastic film, the upper layer being harder and thinner than the lower layer, and being structured, and the surface of the lower layer being coated, where appropriate, with a pressure-sensitive adhesive composition.

대표청구항 ▼

1. A film plaster for covering wounds and preventing or treating blisters, which comprises an at least two-layer elastic film having an upper layer and a lower layer, the upper layer being harder and thinner than the lower layer, and being structured, and the surface of the lower layer being optiona

1. A film plaster for covering wounds and preventing or treating blisters, which comprises an at least two-layer elastic film having an upper layer and a lower layer, the upper layer being harder and thinner than the lower layer, and being structured, and the surface of the lower layer being optionally coated with a pressure-sensitive adhesive composition. 2. The film plaster as claimed in claim 1, wherein between the upper layer and the lower layer there is at least one further layer.3. The film plaster as claimed in claim 1, wherein the upper layer is composed of individual, separate segments.4. The film plaster as claimed in claim 1, wherein the layers are produced from polyurethane dispersions, polystyrene block copolymers or acrylates.5. The film plaster as claimed in claim 1, covered over its entire width, up until the time of use, with an antiadhesive carrier material.6. The film plaster as claimed in claim 1, comprising an absorbent wound contact material or another functional material having beneficial effects on the healing of wounds or blisters.7. A process for producing a film plaster, which comprises applying a first polyurethane dispersion to an embossed film or to an embossed water-resistant paper so as to form a structured layer composed of individual segments separate from one another, drying the resulting composite,applying a second polyurethane dispersion to the first, said second polyurethane dispersion being formulated to form a film which is softer than a film formed by said first polyurethane dispersion,drying the resulting composite, to form a polyurethane film,coating the polyurethane film with a pressure-sensitive adhesive composition,optionally providing the pressure-sensitive adhesive composition with a wound cover and an antiadhesive carrier material, andremoving the embossed film or water-resistant paper.8. A process for producing a film plaster, which comprises dissolving a first polystyrene block copolymer compound in an organic solvent to form a solution,applying the solution to an embossed polymer film or to a polypropylene-coated casting paper, so as to form a structured layer composed of individual segments separate from one another,drying the composite,dissolving a second polystyrene block copolymer in an organic solvent to form a solution, said second polystrene block copolymer being formulated to form a film which is softer than a film formed by said first polystyrene block copolymer, andapplying it to said composite to form a second composite,drying the second composite, to form a film coating the film with a pressure-sensitive adhesive composition,optionally providing the pressure-sensitive adhesive composition with a wound cover and an antiadhesive carrier material, andremoving the polymer film or the casting paper.9. The film plaster of claim 5, wherein said antiadhesive carrier material is siliconized paper.10. The process of claim 8, wherein said organic solvent is toluene.11. The process of claim 8, wherein said polymer film is a polyethylene film.