Abstract: A lid and a container using the lid are disclosed, the lid having a central panel of paperboard with a resilient plastic skirt joined about its perimeter. A metal foil membrane having heat activated adhesive layers is attached to the lid and the rim of the container by inductive heating. Detents project from an inside surface of the skirt and cooperate with the rim on the container to hold the lid in an open position. A stacking lip extends from the skirt and interfits within an identical lid to allow the lids to be stacked for shipment. A hinge extends transversely across the central panel and divides the lid into movable and fixed portions. Weakened regions on the skirt separate when the lid is opened and provide evidence of potential tampering.

Abstract: A closure for sealing an opening of a tubular container is disclosed, the closure having a paperboard central panel with a plurality of secondary panels extending angularly therefrom forming a surface around the perimeter of the central panel. A plastic skirt is adhered around the perimeter of the central panel and to one side of the secondary panels opposite the surface to reinforce it. A metal foil layer is adhered to the surface, the foil having a side facing the sidewall of the container with a heat-activated adhesive layer thereon. The closure is positioned on the container with the central panel in registration with the opening and the heat-activated adhesive layer engaging the sidewall of the container. The seal between the closure and the container is effected by subjecting the container to an electromagnetic induction field, whereby eddy currents induced in the metal foil by the field cause the heat-activated adhesive to form a bond between the container sidewall and the secondary panels.

Abstract: A composite lid formed of plastic resin and paperboard is disclosed along with a method of making the lid. The lid has a primary panel of paperboard defining its center and a plurality of secondary panels, also of paperboard, continuously attached to the perimeter of the primary panel and oriented perpendicularly to its plane. A skirt of plastic resin is attached to the inside surfaces of the secondary panels, the secondary panels being in edge abutting relationship and totally covering the skirt. The primary and secondary panels thus form a lid having a continuous outer surface capable of receiving a print media, the continuous outer surface extending entirely over the lid. A bar of resin is provided around the inside surface of the primary panel and resin spokes connect the bar to the skirt. Raised segments are positioned intermittently around the inside surface of the skirt, the segments engaging a container to hold the lid in place.