| 摘要 |
<p>The invention relates to a coextrusion binder containing: between 5 and 35 wt.- % of a polymer (A) comprising a mixture of between 80 and 20 wt.- % of a metallocene polyethylene (A1) having a density of between 0.863 and 0.915 and between 20 and 80 wt.- % of a non-metallocene LLDPE polyethylene (A2) having a density of between 0.9 and 0.95, the mixture of polymers A1 and A2 being co-grafted; and between 95 and 65 wt.- % of homo-or copolymer metallocene polyethylene (B), the comonomer of which comprises between 3 and 20 carbon atoms, preferably between 4 and 8 carbon atoms, having a density of between 0.863 and 0.915 and an MFI of between 0.5 and 30, preferably between 3 and 15 g/10 min, with the total adding up to 100 %. The mixture of A and B is such that the MFI thereof is between 0.1 and 15 and, preferably, between 1 and 13 g/10 min.</p> |
