| 摘要 |
A multilayer film includes a contact layer, a core layer, and an outer layer, the contact and core layers being integral with a first tie layer; and the outer and core layers being integral with a second tie layer; the contact layer includes a copolymer of ethylene and α-olefin having a density from 0.870 to 0.910 g/cm3, alone or in mixture with a polyolefin having a density from 0.910 to 0.940 g/cm3; the core layer includes a flex-crack resistant ethylene vinyl alcohol copolymer having an ethylene content from 25 to 48 mol % or a mixture of an ethylene vinyl alcohol copolymer having an ethylene content from 25 to 48 mol %, and an ionomer acid ethylene copolymer; the outer layer includes a polyolefin having a density from 0.910 to 0.940 g/cm3, alone or in mixture with a copolymer of ethylene and α-olefin having a density from 0.870 to 0.910 g/cm3. |
