Gas barrier structures

Details Gas barrier structures Gas barrier structures

1987-07-07

1990-05-22

Buffalow, Edith

Stock material or miscellaneous articles

Hollow or container type article

Flexible food casing

428 354, 428 367, 428349, 428353, 4284235, 4284237, 428518, A22C 1300

Patent

active

049276891

ABSTRACT:
A gas barrier structure is disclosed which comprises a base synthetic thermoplastic polymeric layer, e.g. nylon, polyethylene, having two coatings on one side of the base layer. The first coating is a solvent-based urethane primer and the second coating comprises a polyvinyl alcohol gas barrier material. The primer is present in the range of 0.3 to 3.0 g/m.sup.2 and the polyvinyl alcohol is present in an amount of up to 2.0 g/m.sup.2. The polyvinyl alcohol is deposited from solution or dispersion.

REFERENCES:
patent: 4565742 (1986-01-01), Lang

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