Cold- or heat-sealable composite film for reclosable packages

Details Cold- or heat-sealable composite film for reclosable packages Cold- or heat-sealable composite film for reclosable packages

1985-05-06

1987-06-16

Buffalow, Edith

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

428 40, 428349, 428354, 4284769, 428511, 428514, 428517, 428518, 428519, 428522, 428523, 220258, 206631, B32N 502

Patent

active

046736018

ABSTRACT:
A cold- or heat-sealable composite film comprises a permanently adhesive layer which is applied to a carrier film and which, on the side facing away from the carrier film, has a covering layer of a material having a low elongation at break and low tear propagation strengths. If the covering layer is not itself cold- or heat-sealable, it is provided with an appropriate cold- or hot-sealing layer. The composite film can be used as a closing membrane for preformed containers or can itself be formed as a container.

REFERENCES:
patent: 3854653 (1974-12-01), Engelsberger
patent: 4055672 (1977-10-01), Hirsch et al.
patent: 4101047 (1978-07-01), Geppert et al.
patent: 4279344 (1981-07-01), Holloway
patent: 4521467 (1985-06-01), Berger

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