Sterilizable flexible packaging structure

Details Sterilizable flexible packaging structure Sterilizable flexible packaging structure

1982-08-06

1983-10-04

Van Balen, William J.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

206484, 2064842, 2065242, 426113, 426127, 428215, 428216, 428516, B65D 8572, B65D 6540, B65D 8118, B32B 2708

Patent

active

044078749

ABSTRACT:
The invention provides improved film structure and bags made therefrom for use in sterile packaging, wherein the package and product are sterilized after the process of filling and sealing the bag. The improved structure is a 3-layer coextruded film comprising a first layer of propylene ethylene copolymer, a second layer on one surface of the first layer and comprising a blend of propylene ethylene copolymer with linear low density polyethylene, and a third layer of linear low density polyethylene on the opposing surface of the second layer. The blend composition is 20% to 80% propylene ethylene copolymer and 80% to 20% linear low density polyethylene.

REFERENCES:
patent: 4275119 (1981-06-01), Weiner
patent: 4276330 (1981-06-01), Stanley et al.
patent: 4303710 (1981-12-01), Bullard et al.
patent: 4308084 (1981-12-01), Ohtusuki et al.
patent: 4355721 (1982-10-01), Knott et al.
patent: 4356221 (1982-10-01), Anthony et al.
patent: 4357376 (1982-11-01), Nattinger et al.
patent: 4360551 (1982-11-01), Guarino et al.
patent: 4364981 (1982-12-01), Horner et al.

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