Oxygen and water vapor transmission resistant film and method

Details Oxygen and water vapor transmission resistant film and method Oxygen and water vapor transmission resistant film and method

1991-12-20

1993-07-27

Buffalow, Edith

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

428516, 428910, B32B 2708

Patent

active

052309630

ABSTRACT:
A multilayer film combination has a pair of base layers each of a blend of polypropylene and maleated polypropylene, each is machine direction oriented before receiving a coating of PVOH containing a cross-linking agent and each is mated with the PVOH coatings together before the combination is transverse direction oriented.

REFERENCES:
patent: 3480580 (1969-11-01), Joyner et al.
patent: 4621014 (1986-11-01), Lu
patent: 4650721 (1987-03-01), Ashcraft

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