| abstract |
Use of a protective multilayer filmnbased on PVD and PMMA, for the protection of a substrate thatnit releases volatile compounds, and which comprises:n n n ? a surface layer, comprising,nby weight, from 70 to 100%, preferably from 90 to 100%,nof a fluorinated polymer;n n n ? an adhesive layer, comprising fromn50 to 100% of an acrylic polymer, from 0 to 50% of anfluorinated polymer, from 1 to 10% of an anti UV additive and from 0nup to 50% of a crash modifier, characterized in that thenthickness of the surface layer is between 2 and 15 µm,npreferably between 2 and 10 µm, more preferably betweenn3 and 8 µm and the thickness of the adhesive layer is betweenn30 and 75, preferably between 30 and 60, morenpreferably between 30 and 50 µm.n n n The invention also relates to anmultilayer structure that associates a multilayer film with ancellulosic or lignocellulosic material, impregnated with a tail in itsnsurface or in the dough. |