Multilayered film

Details Multilayered film Multilayered film

1991-02-28

1992-12-08

Lesmes, George F.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

428216, 428220, 428349, 428213, B32B 2708

Patent

active

051697289

ABSTRACT:
The multilayered film has a base layer (A) and at least one surface layer (B).
The film-forming component of base layer (A) is at least one copolymer of A1) ethylene and A2) acrylic or methacrylic acid or an ionomer thereof in the absence of substantial amounts of other polymers. The film-forming component of base layer (B) is at least one copolymer of ethylene and up to about 25 weight percent of at least one alpha-olefin having from 3 to 12 carbon atoms, the copolymer having a density of about 0.880 to about 0.935 g/cm.sup.3, in the absence of substantial amounts of other polymers. The weight of the base layer (A) is from 25 to 75 percent by the total weight of (A) and (B). The overall thickness of the multilayered film is from about 5 to about 40 micrometers.
The multilayered film is useful for wrapping food.

REFERENCES:
patent: 4277578 (1981-07-01), Yoshimura et al.
patent: 4418114 (1983-11-01), Briggs et al.
patent: 4424243 (1984-01-01), Nishimoto et al.
patent: 4619859 (1986-10-01), Yoshimura et al.
patent: 4863769 (1989-09-01), Lustig et al.
patent: 5041316 (1991-08-01), Parnell et al.

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