Controlled barrier film structure

Details Controlled barrier film structure Controlled barrier film structure

B - Operations, Transporting

32

B

B32B 27/08 (2006.01)

Patent

CA 2179960

The barrier properties of a packaging film may be modified by applying an admixture containing a nonvolatile barrier extender such as an acrylic copolymer and a barrier coating such as polyvinylidene chloride (PVDC) to a substrate such as a polyethylene. The gas permeability of the resulting film may be controlled by adjusting the percentages of barrier coating and barrier extender in the admixture. The invention includes a film comprising a substrate having a coating applied thereon, the coating comprising a barrier coating and a barrier extender.

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