Multilayered film and container

Details Multilayered film and container Multilayered film and container

2005-06-14

2005-06-14

Nolan, Sandra M. (Department: 1772)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C428S036910, C428S218000, C428S340000, C428S515000, C428S516000, C428S523000, C428S525000

Reexamination Certificate

active

06905744

ABSTRACT:
A multilayered film comprising five layers in which the first, third and fifth layers are made of an ethylene.α-olefin copolymer having a density of 0.930 to 0. 950 g/cm3and the second and fourth layers are made of a mixed resin comprising 35 to 55% by weight of polypropylene having a density of 0.900 to 0.930 g/cm3, 40 to 60% by weight of ethylene.α-olefin elastomer having a density of 0.860 to 0.900 g/cm3, and 2 to 8% by weight of high-density polyethylene having a density of 0.955 to 0.970 g/cm3; and a container made of the film (bag for infusion fluid, etc.). The multilayered film and the container are useful in medical applications.

REFERENCES:
patent: 4961495 (1990-10-01), Yoshida et al.
patent: 5478617 (1995-12-01), Watanabe et al.
patent: 5792526 (1998-08-01), Watanabe et al.
patent: 0 699 521 (1996-03-01), None
patent: 62-64363 (1987-03-01), None
patent: 63-248633 (1988-10-01), None
patent: 03-277365 (1991-12-01), None
patent: 04-266759 (1992-09-01), None
patent: WO 99/03679 (1999-01-01), None

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