Patent ID: 11926123
Assignee: MUCELL EXTRUSION, LLC
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A creased, folded or scored multilayer foam film comprising:
a first foam layer including a plurality of cells, wherein at least 10% of the cells are closed cells,
a second foam layer including a plurality of cells, wherein at least 10% of the cells are closed cells,
two solid skin layers comprising HDPE such that the first and second foam layers are disposed between the two solid skin layers, and
a solid layer comprising ethylene vinyl alcohol (EVOH) between the first foam layer and the second foam layer, wherein the said first foam layer is between one of the solid skin layers and the solid layer comprising EVOH, and the said second foam layer is between one of the solid skin layers and the solid layer comprising EVOH, and the film has an overall thickness equal to or greater than 8 mils, and the ratio of the oxygen transmission rate of the creased, folded or scored film in cc/m2/24hr, according to ASTM D3985, over that of an identical film prior to creasing, folding or scoring is less than 1.1.