| 摘要 |
A retortable multilayer packaging film has a crosslinked first outer layer which serves as a seal layer and product-contact layer, and a crosslinked O2-barrier layer. The O2-barrier layer comprises a blend of (i) from 50 to 95 weight percent, based on blend weight, of an amorphous polyamide with a glass transition temperature of from about 80~C to about 200~C, and (ii) a semi-crystalline polyamide. The semi-crystalline polyamide comprises at least one member selected from the group consisting of: (a) from 5 to 50 percent, based on blend weight, of PA-MXD,6/MXD,I; and (b) from 5 to 15 percent, based on blend weight, of a nucleated or non-nucleated polyamide having a viscosity number of 150 millimeters per gram to 185 millimeters per gram as measured in accordance with ISO Test Method 307. 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. |
