Trilaminate film for forming sideweld bags

Stock material or miscellaneous articles – Hollow or container type article – Cellular material derived from plant or animal source

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Details

206484, 2065242, 428332, 428515, 428516, B32B 2708, B65D 6440

Patent

active

042763304

ABSTRACT:
Sideweld bags having strong sidewelds can be made from a trilaminate film comprising a core layer of an ethylene-propylene block copolymer sandwiched between skin layers of polypropylene or an ethylene-propylene random copolymer.

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patent: 3993826 (1976-11-01), Butler et al.
patent: 4004075 (1977-01-01), Richmond et al.
patent: 4022646 (1977-05-01), Casey

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