| 摘要 |
1. Compositions comprising from 5 to 70% by weight of at least one radical ethylene polymer, having a density between 0,91 and 0,94 and a melt index between 0,2 and 5 dg/min and from 30 to 95% by weight at least one copolymer of ethylene and of an alpha-olefin, characterised in that the said copolymer is an ethylene/propylene copolymer, having a density rho between 0,900 and 0,935, a melt index between 0,4 and 3 dg/min and a polydispersity index between 6 and 14, the proportion m of methyl groups of which lies between 22 and 62 per 1000 carbon atoms and is such that : 0,9530 =< rho + 0,83 m =< 0,9568. |
