| 摘要 |
The invention relates to polyolefin compositions with good impact strength and transparency comprising a) 85 - 98 wt% based on the total weight of the composition of a heterophasic propylene/ alpha -olefin copolymer comprising a polymer or copolymer of propylene and an alpha -olefin with 0-15 mol% of the alpha -olefin as matrix polymer and a propylene/ alpha -olefin rubber copolymer comprising 20 -80 mol% of the alpha -olefin and b) 15 - 2 wt% based on the total weight of the composition of an ethylene homopolymer or an ethylene/ alpha -olefin copolymer, the alpha -olefin in the ethylene copolymer having 4 - 10 carbon atoms, the ethylene homo-or copolymer having a density lower than 0,925 g/m<3>. processes for producing these compositions and their use. The compositions are particularly useful for food packaging, especially for deep freezing applications. |
