| abstract |
A multilayer film structure comprising a layer (Layer B) and a lower layer (Layer C), each layer having opposite facial surfaces in the adherent contact with the other layer, wherein: layer B comprises a mixture of: (I ) a crystalline block copolymer composite material (CBC) or a specific block copolymer composite material (BC), comprising: i) an ethylene polymer (EP) comprising at least 80% mol of polymerized ethylene; ii) an alpha olefin based crystalline polymer (CAOP) and iii) a block copolymer comprising (a) an ethylene polymer block comprising at least 80% mol of polymerized ethylene and (b) an alpha block Crystalline olefin (CAOB), and (II) one or more other polymers, the other polymer giving an octene ethylene copolymer plastomer or octene ethylene copolymer elastomer, LLDPE, LDPE, a propylene-based elastomer, a grafted or functionalized polyethylene with glycidyl methacrylate, maleic anhydride, amine, or silane or a polar copolymer of ethylene; and comprising the lower layer C comprises a polyolefin that has at least a melting peak greater than 125 ° C and has an upper facial layer and a lower facial surface, the upper facial surface of the C layer being in adherent contact with the lower facial surface of layer B. |