Easy-opening flexible packaging laminates and packaging material

Details Easy-opening flexible packaging laminates and packaging material Easy-opening flexible packaging laminates and packaging material

1996-01-25

1999-02-23

Dye, Rena L.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428 353, 428 354, 428137, 428195, 428200, 428461, 4284761, 428516, 428518, 383200, B32B 310, B32B 2700

Patent

active

058741550

ABSTRACT:
A polymeric laminate for use in polymeric films, and packaging material and packages made therefrom, that is roughened or knurled to produce a series of nicks or cuts over substantially the entire surface area of the laminate, producing an easy-opening feature. The laminate may be a multilayer, polymeric structure that may comprise an oriented polypropylene, polyethylene terephthalate, or a biaxially oriented nylon. The packaging material of the invention may contain a sealant film, either a single layer or multilayer film, and may also comprise an intermediate layer of foil.

REFERENCES:
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patent: 5312659 (1994-05-01), Otsuka et al.
patent: 5487940 (1996-01-01), Bianchini et al.
patent: 5512337 (1996-04-01), Littmann et al.
patent: 5549944 (1996-08-01), Abate
patent: 5556674 (1996-09-01), Meilhon

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