Patent ID: 8007919
Filing Date: 2011-08-30
Classification: B32B,C08L,C09J,Y10T

Abstract:
1. A coextrusion tie comprising a blend of at least one ethylene homopolymer or copolymer (A1) of density between 0.940 and 0.980 g/cm 3 with at least one propylene homopolymer or copolymer (B) comprising at least 75 wt% propylene, said blend being grafted by a functional monomer and optionally diluted in an ungrafted ethylene homopolymer or copolymer (A2) of density between 0.940 and 0.980 g/cm 3 ; the level of grafting of said coextrusion tie being <0.5% by weight relative to the total weight of said tie; and the density of said tie being between 0.940 and 0.980 g/cm