| 摘要 |
A retortable multilayer packaging film comprises a crosslinked heat seal layer and a crosslinked grease-resistant layer. The crosslinked heat seal layer is an outer film layer comprising a C<SUB>2-3</SUB>/C<SUB>3-20</SUB> alpha-olefin copolymer. The crosslinked grease-resistant layer comprising at least one member selected from the group consisting of (i) a crystalline anhydride-grafted C<SUB>2-3</SUB>/C<SUB>6-20</SUB> alpha-olefin copolymer having a density of from 0.93 g/cc to 0.97 g/cc, (ii) a crystalline C<SUB>2-3</SUB>/butene copolymer having a density of at least 0.92 g/cc, (iii) ionomer resin, and (iv) ethylene/unsaturated acid copolymer. The invention also pertains to packaging articles made from the film, packaged products utilizing the film in the package, and a packaging process utilizing the film. |
