Barrier film structures

Details Barrier film structures Barrier film structures

1996-07-25

1998-07-07

Thibodeau, Paul J.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

428 354, 428516, B32B 2728, B32B 2732

Patent

active

057766185

ABSTRACT:
A polymeric film structure exhibiting improved barrier properties and which is formed in the absence of a primer. The film structure is produced by coating a surface of a polymeric substrate with a solution of a polyvinyl alcohol-vinyl amine copolymer, an aldehyde-containing crosslinking agent and a crosslinking promoting acid catalyst. The polymer substrate is made out of polyolefin materials such as polypropylene.

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