Membrane closure structure

Details Membrane closure structure Membrane closure structure

1981-07-01

1983-05-03

Dixson, Jr., William T.

Envelopes, wrappers, and paperboard boxes

Wrapper

Bottle

206525, 206628, 229 35MF, B65D 4302, B65D 5120

Patent

active

043818480

ABSTRACT:
A retortable membrane closure structure for containers is disclosed which includes a first adhesive layer, an intermediate layer, a second adhesive layer and an outer barrier layer. Bond strengths and tear strengths of the layers are selected such that upon peeling the membrane from a container to which it was sealed initial failure occurs within the intermediate layer, followed by failure between the second adhesive layer and the intermediate layer, providing a clean peel between the layers.

REFERENCES:
patent: 2954116 (1960-09-01), Maso et al.
patent: 3256981 (1966-06-01), Kurtz
patent: 3335939 (1967-08-01), Robinson, Jr.
patent: 3454210 (1969-07-01), Spiegel et al.
patent: 3511436 (1970-05-01), Kessler
patent: 3625351 (1971-12-01), Eisenberg
patent: 3650386 (1972-03-01), Tigner
patent: 3655503 (1972-04-01), Stanley et al.
patent: 3854653 (1974-12-01), Engelsberger
patent: 3946871 (1976-03-01), Sturm
patent: 3946872 (1976-03-01), Sturm

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