Trilaminate film for forming sideweld bags

Details Trilaminate film for forming sideweld bags Trilaminate film for forming sideweld bags

1977-10-26

1981-06-30

Hess, Bruce H.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

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.

REFERENCES:
patent: 3282729 (1966-11-01), Richardson et al.
patent: 3445318 (1969-05-01), Brams et al.
patent: 3524795 (1970-08-01), Peterson
patent: 3649579 (1972-03-01), Gobran et al.
patent: 3671383 (1972-06-01), Sakata et al.
patent: 3817821 (1974-06-01), Gallini
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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