Container lid formed as a laminate having a built-in opening...

Details Container lid formed as a laminate having a built-in opening... Container lid formed as a laminate having a built-in opening...

B - Operations, Transporting

65

D

B65D 43/02 (2006.01) B65D 51/20 (2006.01) B65D 77/20 (2006.01)

Patent

CA 2624159

A lid for a container having a built-in opening feature comprises a flexible laminate comprising an upper layer and a lower layer, a pair of radially spaced concentric lines of weakness being formed in the laminate, an outer one of the lines of weakness being formed in the upper layer and an inner one of the lines of weakness being formed in the lower layer, wherein the upper and lower layers in an annular region between the lines of weakness are readily peeled apart, and wherein the upper and lower layers outside the annular region are laminated together with an adhesive providing a bond with a greater peel strength than that required to separate the layers in the annular region.

L~invention concerne un couvercle de contenant doté d~un élément d~ouverture intégré comprenant un stratifié flexible constitué d~une couche supérieure et d~une couche inférieure, une paire de lignes de faiblesse concentriques espacées de façon radiale et formées dans le stratifié, une ligne externe des lignes de faiblesse étant formée dans la couche supérieure et une ligne interne des lignes de faiblesse étant formée dans la couche inférieure, les couches supérieure et inférieure d~une région annulaire entre les lignes de faiblesse étant facilement décollées, et les couches supérieure et inférieure hors de la région annulaire étant stratifiées à l~aide d~un adhésif conférant une adhérence présentant une résistance au décollement supérieure à ce qui est nécessaire pour séparer les couches de la région annulaire.

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