Sealable film for tear-open packaging

Details Sealable film for tear-open packaging Sealable film for tear-open packaging

2006-05-30

2006-05-30

Tarazano, D. Lawrence (Department: 1773)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C428S516000

Reexamination Certificate

active

07052750

ABSTRACT:
A sealable film is used for the production of tear-open packages. The film, as a monofilm, in total, or as a multi-layer laminate film, produced by means of coextrusion, has at least in one layer a polymer mixture of a cycloolefin copolymer (COC) and polyolefin or an ethylene copolymer, whereby the COC portion in the polymer mixture is 10 to 80 wt.-%, the remainder polyolefin or ethylene copolymer. Packages produced from such films demonstrate balanced tear start and tear propagation properties in the crosswise and lengthwise direction of the film.

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Verpackungs-Rundschau Sep. 1998, pp. 52 to 54.

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