Abstract:
A method for producing a high aspect ratio micro- or nanostructured thermoplastic polymer foil, or a nanostructured thermoplastic polymer coating on a carrier foil, comprising at least one high aspect ratio nanostructured surface area, is disclosed. The method comprises applying a high aspect ratio nanostructured surface on an extrusion coating roller and maintaining the temperature of the roller below the solidification temperature of the thermoplastic material. A thermoplastic foil and a thermoplastic coating made by the method is also disclosed.
Abstract:
A transparent lid sheet (S) for being punched to a transparent sheet lid (2) to be attached to a container (1), specifically either a polyethylene terephtalate, a polypropylene or polystyrene container (1 ) or a container (1) comprising either a polyethylene terephtalate, polypropylene or polystyrene surface layer, to produce a package, said lid sheet (S) comprising a transparent base layer (4), which comprises a transparent polyethylene terephtalate layer (4a) with a transparent barrier coating or barrier layer (4b) coated onto the polyethylene terephtalate layer, the base layer (4) having a first major surface (4c) substantially coinciding with an outer major surface of the barrier coating (4b), and a top layer (5) providing a welding layer (5b, 5c) for welding the sheet lid (2) to the container (1), the top layer (5) preferably being provided at or coinciding with the first major surface (4c).