| 摘要 |
Multi-layer cast structures particularly suitable for thermoforming applications comprise a coextruded polypropylene-containing microlayer sequence (a) of at least 16 microlayers, made of a number n of identical repeating units (a'), that in addition to a polypropylene microlayer (A) preferably comprise also a polyolefin microlayer (B) having a composition other than that of (A). In a preferred embodiment the microlayer sequence (a) is coextruded with an outer heat-sealable layer (b) and an outer abuse-resistant layer (c), preferably comprising a (co)polyamide or/and a (co)polyester. |
