Patent ID: 8329288

Claim:
A cap lined with a film structure for sealing a neck of a bottle, comprising: the cap; and the film structure comprising at least five layers: two outer layers ( 2 ) comprising a first polyolefin and a first binder on which is each time provided, on the opposite sides, a layer ( 4 ) comprising a gas barrier and whereby, between both above-mentioned gas barriers ( 4 ), is provided a layer ( 3 ) comprising a foamed synthetic material comprising a second polyolefin and a second binder, wherein the second polyolefin and second binder may be the same or different as the first polyolefin and first binder, wherein the first and second binders makes it possible to bond the outer layers ( 2 ) and the foam layer ( 3 ) to the layer ( 4 ) forming the gas barrier wherein the film structure is provided in the cap in the form of a slice.