Biaxially oriented polypropylene metallized film for packaging

Details Biaxially oriented polypropylene metallized film for packaging Biaxially oriented polypropylene metallized film for packaging

2005-07-12

2005-07-12

Dye, Rena (Department: 1774)

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

C428S212000, C428S349000, C428S457000, C428S461000

Reexamination Certificate

active

06916526

ABSTRACT:
A laminate film comprising a polyolefin resin layer having a discharge-treated surface on one side of the polyolefin resin layer comprising at least 0.3% nitrogen functional groups on the discharge-treated surface; and a metal layer having an optical density of at least about 2.6 deposited on the discharge-treated surface of the polyolefin resin layer has a barrier durability under 9% elongation of 46.5 cc/m2/day or less oxygen transmission rate through the laminate film.

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A. Yializis et al., 1997 “Barrier Degradation in Aluminum Metallized Polypropylene Films” Society of Vacuum Coaters 505/856-7188, pp 371-375.
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