Tubular, multi-layer film and method of making

Details Tubular, multi-layer film and method of making Tubular, multi-layer film and method of making

1985-07-18

1987-02-17

Kittle, John E.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428214, 428216, 428515, 428518, 264173, 15624411, B65D 6502, B32B 2708, B32B 3130

Patent

active

046439277

ABSTRACT:
A tubular film and method for making the film by extrusion provide a multi-layer film having a central layer of barrier material which overlaps itself by a substantial distance along a weld line. The film includes inner and outer adhesive layers positioned on opposite sides of the central barrier layer, which adhesive layers completely encapsulated the central barrier layer. Finally, the film includes inner and outer surface layers. The inner surface layer is positioned within the inner adhesive layer, and the outer surface layer is positioned outside the outer adhesive layer.

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