B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
190/137.5
B65D 3/26 (2006.01) B65D 17/00 (2006.01)
Patent
CA 1279588
IN THE CANADIAN PATENT AND TRADEMARK OFFICE PATENT APPLICATION entitled: Composite band for lids for thermoplastic containers and method, device and installation for manufacturing such a composite band. in the name of: Roland TORTEROTOT assignee: Societe Anonyme: ETUDE ET REALISATION DE CHAINES AUTOMATIQUES - E.R.C.A. ABSTRACT OF THE DISCLOSURE The invention relates to a band with lids for flat-edged thermoplastic containers comprising a first band in aluminum and a second thermoplastic band adhering via a thermo-adhesive film in such a way as to make the first band removable by peeling; the second band comprises a slit. According to the present invention, the faces defining the slit are perpendicular to the second band and at a very small distance one from the other, the thermo-adhesive film has areas with two different adhesive powers, the area with the higher adhering power being located within the zone defined by the slit whereas the other area is located outside said zone, and a sealing or tightening film covers the whole underface of the second band. Fig.1.
536220
Erca Formseal
Goudreau Gage Dubuc
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