Multilayer film

Details Multilayer film Multilayer film

1996-07-31

2000-05-16

Weisberger, Richard

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428500, 428516, 428910, 428332, 428339, B32B 702

Patent

active

060634626

ABSTRACT:
A flexible multilayer film suitable as a (food-)packaging material includes a first seal layer comprising principally a metallocene-catalyzed polyolefin, and a second seal layer comprising a copolymer of at least one oxygen-containing monomer and ethylene. The copolymer is set to have a crystal melting point lower than that of the metallocene-catalyzed polyolefin. The second seal layer may preferably have a thickness larger than that of the first seal layer. Because of the provision of the second seal layer adjacent to the first seal layer, the multilayer film is provided with an improved film-formability while retaining the good sealability of the metallocene-catalyzed polyolefin.

REFERENCES:
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patent: 5183867 (1993-02-01), Welborn, Jr.
patent: 5272236 (1993-12-01), Lai et al.
patent: 5278272 (1994-01-01), Lai et al.
patent: 5360648 (1994-11-01), Falla et al.
patent: 5397613 (1995-03-01), Georgelos
patent: 5465788 (1995-11-01), Beckele et al.
patent: 5482770 (1996-01-01), Beckele et al.
patent: 5707751 (1998-01-01), Garza et al.

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