Patent ID: 11897231
Assignee: AMCOR FLEXIBLES NORTH AMERICA, INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  H | IPC B  H

Claim 19:
20. A package film comprising
a first foil layer having a thickness of from 0.25 mil to 0.5 mil,
a second foil layer having a thickness of from 0.25 mil to 0.5 mil,
a multilayer structure positioned between the first foil layer and the second foil layer, wherein the multilayer structure has a thickness of from 0.75 mil to 2 mil and comprises (a) a high modulus layer comprising a biaxially oriented nylon film or a biaxially oriented polyethylene terephthalate film, the high modulus layer having a secant modulus in each of the machine direction and the transverse direction of greater than 120,000 psi or having an elongation at break in each of the machine direction and the transverse direction of less than 150% and (b) a multilayer bulk layer comprising processing aid, low density polyethylene (LDPE) and ethylene acrylic acid copolymer (EAA); wherein the high modulus layer is positioned interior the multilayer bulk layer and the multilayer bulk layer is positioned exterior the high modulus layer;
an adhesive layer positioned between the second foil layer and the high modulus layer, wherein the adhesive layer is directly attached to the second foil layer and the high modulus layer; and
an extrusion coated sealant, wherein the extrusion coated sealant is positioned interior the second foil layer.