Patent ID: 9278507
Filing Date: 2016-03-08
CPC Classification: B32B,B65D

Claim Text:
1. A method for making a film/board laminate for use in pilfer resistant packaging, comprising the steps of: providing a non-treated paperboard substrate; adhering a single ply of an oriented film to the substrate, the oriented film being applied at an orientation angle to the board between but not equal to zero degrees and 180 degrees, wherein adhering the single ply of the oriented film to the substrate includes controlling adhesion of the film to the substrate to be about 0.5 pli to 1.4 pli thereby forming a pilfer resistant laminate; and applying a heat seal layer to the film, wherein an entirety of the laminate is pilfer resistant and the adhesion of the film to the substrate at a time of manufacture is related to a resistance to tear propagation of the laminate at a time after manufacture.