Laminated packaging material for paper container

Details Laminated packaging material for paper container Laminated packaging material for paper container

2005-12-13

2005-12-13

Pyon, Harold (Department: 1772)

Stock material or miscellaneous articles

Hollow or container type article

Paper containing

C428S034100, C428S034300, C428S035700, C428S036900

Reexamination Certificate

active

06974612

ABSTRACT:
A paper packaging container is formed from the packaging material comprising constitution layers of at least an outside thermoplastic material layer, a paper substrate layer, and an inside thermoplastic material layer, wherein the inside thermoplastic material layer contains at least a linear low density polyethylene, and has properties parameters of an average density of 0.900–0.930, a predetermined peak melting point, a melt flow index of 5–15, and a swelling ratio of 1.3–1.8. The use of the packaging material allows easy filling and packaging to the packaging container and quick heat sealing, and results in more toughly and strongly sealed container, and the material can be used for achieved good sealing independently of the temperature of food contents and thus maintaining the non-scalping and quality preservability of the content product.

REFERENCES:
patent: 4418841 (1983-12-01), Eckstein
patent: 5536542 (1996-07-01), Gillespie et al.
patent: 5732825 (1998-03-01), Ikenoya et al.
patent: 4-97841 (1992-03-01), None
patent: 5-209116 (1993-08-01), None
patent: 9-142455 (1997-06-01), None

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