| abstract |
The invention relates to a multilayer packaging film comprising at least three different types of layers (A), (B), and (C): n(A) is at least one outer layer, n(B) is at least one passive oxygen barrier layer, n(C) is at least one active oxygen scavenging layer, ncharacterized in that n- the at least one outer layer (A) is a thermoplastic polymer; n- the at least one passive oxygen barrier layer (B) is selected from the group consisting nof ethylene vinyl alcohol copolymers, polyvinylchloride, copolymers of polyvinyl chloride, polyvinyl alcohol, polyvinylidene dichloride, copolymers of polyvinylidene dichloride, polyacrylonitrils, copolymers of polyacrylonitrils, polyethylene terephthalate, polyethylene naphthalate, polyethylenefuranoate, polysiloxanes, and polyamides; n- the at least one active oxygen scavenging layer (C) comprises na) a plastic material which is a polyolefin, a polyolefin copolymer or a polystyrene, nand additives (b) and (c), wherein nb) is a polyterpenic resin; and nc) is a transition metal catalyst. |