| 摘要 |
<p>Composite structures (CS) comprising at least (C1) a structural layer, (C2) a weight-reducing layer of rigid or semi-rigid foam and possibly (C3) another structural layer, in which the foam in (C2) consists of polyamide-based foam. An independent claim is also included for a method for the production of (CS) which involves assembling the three layers as above or precursors thereof.</p> |
