Alveolar multilayer structure having a metal coating

Abstract

A provides a multilayer structure comprising: at least one first layer comprising a first polymer film that carries, on a first face, a metal deposit, the first face being a free face of the first layer; and at least one second layer comprising a second polymer film. The second layer is joined, in a plurality of junction zones, to the first layer on the first face carrying the metal deposit, the junction zones defining a region of contact between the first layer and the second layer, the first layer and the second layer forming at least one cell outside the contact region.

1 . A multilayer structure comprising: at least one first layer comprising a first polymer film that carries, on a first face, a metal deposit, the first face being a free face of said first layer; and at least one second layer comprising a second polymer film; wherein said second layer is joined, in a plurality of junction zones, to said first layer on said first face carrying said metal deposit, the junction zones defining a region of contact between said first layer and said second layer, said first layer and said second layer forming at least one cell outside the contact region. 
     
     
         2 . A multilayer structure according to  claim 1 , wherein said contact region comprises a set of crossed continuous lines that form a grid, such that the portions of said first layer and of said second layer that are separated by the lines form a set of closed disjoint cells. 
     
     
         3 . A multilayer structure according to  claim 1 , characterized in that, wherein said contact region comprises a set of disjoint continuous lines, such that the portions of said first layer and of said second layer that are separated by the lines form a set of disjoint cells that are open to the outside. 
     
     
         4 . A multilayer structure according to  claim 1 , wherein said contact region comprises a set of disjoint zones, such that the portions of said first layer and of said second layer that surround the zones form a set of cells that communicate with one another. 
     
     
         5 . A multilayer structure according to  claim 4 , wherein said set of cells are open to the outside. 
     
     
         6 . A multilayer structure according to  claim 1 , wherein each of said cells presents a hole. 
     
     
         7 . A multilayer structure according to  claim 6 , wherein at least a fraction of said holes pass through said first layer. 
     
     
         8 . A multilayer structure according to  claim 6 , wherein at least a fraction of said holes pass through said second layer. 
     
     
         9 . A multilayer structure according to  claim 1 , wherein it further comprises a third layer comprising a third polymer film that is joined in a plurality of junction zones to the second layer, each junction zone defining a contact region having a surface area that is smaller than the surface area of said second layer. 
     
     
         10 . A multilayer structure according to  claim 6 , wherein the multilayer structure further comprises a third layer comprising a third polymer film that is joined in a plurality of junction zones to the second layer, each junction zone defining a contact region having a surface area that is smaller than the surface area of said second layer, and wherein at least a fraction of said holes pass through said third layer.