Reinforced plastic bag

Details Reinforced plastic bag Reinforced plastic bag

1986-02-03

1987-11-24

Schmidt, Frederick R.

Manufacturing container or tube from paper; or other manufacturi

Container making

Pliable container

493213, 493293, 493297, 493302, 383 46, B31B 2362, B31B 2372, B31B 2384

Patent

active

047087056

ABSTRACT:
The invention provides a method of forming single or multi-wall plastic tubing and more particularly, in forming single or multi-wall plastic bags wherein the seal area is strengthened by utilizing a plurality of extruded layers of adhesive material in the seal area. This would particularly be the case for valved bags.

REFERENCES:
patent: 2395077 (1946-02-01), Southwick
patent: 3130647 (1964-04-01), Anderson et al.
patent: 3279330 (1966-10-01), Harding
patent: 4464157 (1984-08-01), Benoit et al.

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