| 摘要 |
<p>A non-sealable polypropylene multi-layer film comprises a base layer and at least one covering layer, the base layer as wella as the covering layer or layers being formed of propylene homopolymers. The covering layers contain a combination of additives composed of (a) from 0.2 to 1.0% by weight of a long-chain aliphatic amine, (b) from 0.2 to 1.0% by weight of a polydialkylsiloxane, and (c) from 0.1 to 1.0% by weight of a platelet-shaped inorganic pigment, the platelets of the pigments being disposed substantially parallel to the surface of the covering layer. The film is preferably produced by a coextrusion process. It is preferably used as a laminating film, an interleaving film or a metallizable film. The novel non-sealable polypropylene multi-layer film has, in particular, good anti-blocking and slip properties, good optical properties, good antistatic properties, and a high scratch resistance. The film can be subjected to a corona treatment without thereby adversely influencing its properties.</p> |
