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US 2006/0141274 A1Published application
Sealing film comprising a barrier layer
OwnerGunter Schubert, Uli Grafmuller +1inventors
InventorsGunter Schubert, Uli Grafmuller, Guy Boiron
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Abstract
The invention relates to a sealing foil with a substrate (2), a primer layer (3) and at least one extruded functional layer (6). Such a sealing foil is improved with a view to suppressing migration in that between the primer layer (3) and the extruded functional layer (6) an extruded barrier layer (4) is provided which prevents at least the migration of components of the primer layer (3) and/or of the functional layer (6).
Claims6
A sealing foil with a substrate, a primer layer and at least one extruded functional layer wherein
- between the primer layer and the extruded functional layer an extruded barrier layer is provided which prevents at least the migration of components of the primer layer and/or of the functional layer.
Dependencies are inferred from the claim text.