Patent ID: 8986823
Filing Date: 2015-03-24
Classification: B32B,Y10T

Abstract:
1. An extrudate for use in extrusion lamination or extrusion coating, said extrudate comprising a first microlayered core sandwiched between boundary layers and skin layers to form a structure comprising: skin/boundary/microlayered core/boundary/skin wherein said skin layer and said boundary layer is selected from the group consisting of low density polyethylene, maleic anhydride, and combinations thereof, and wherein said microlayered core comprises at least one barrier microlayer selected from the group consisting of ethylene vinyl alcohol copolymer (EVOH), polyvinylidene dichloride (PVDC), vinylidene chloride/methyl acrylate copolymer, polyamide, polyester, high density polyethylene (HDPE), low density polyethylene (LDPE), polypropylene (PP), polyethylene terephthalate (PET), and combinations thereof, adhered to at least one tie microlayer selected from the group consisting of maleic anhydride, anhydride modified linear low density polyethylene, ethylene methacrylate, polyamide, and combinations thereof, and wherein the thickness of the barrier microlayer is less than about five microns and the thickness of the tie microlayer is less than about five microns.