| 摘要 |
The invention concerns a plastic-based multilayer structure, in particular for making tubes or conduits for transporting liquid fluids such as alcohol, liquid fuels derived from petrol, fuels containing oxygen compounds such as, for instance alcohol. More particularly it concerns a multilayer structure with improved barrier properties, in particular with respect to the fluids mentioned above. Said structure comprises an external layer (A) formed from a polyamide based composition with and an internal adjacent layer (B) formed from a polyfluorovinylidene based composition. The adherence between these two layers is obtained either by adding a polyacrylate compound commercialised under the registered trade mark RESEDA in the polymer forming the layer (B) or by forming an intermediate layer between the adjacent layers (A) and (B) from a composition containing said RESEDA compound.
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