Patent ID: 7217454
Filing Date: 2007-05-15
Classification: B32B,B65D,Y10T

Abstract:
1. A pull-tab sealing member, having a top side and a bottom side constructed to be secured to a lip around an opening of a container, to close the container, the pull-tab sealing member comprising: a bottom member comprising a support layer having a bottom surface for facing a container, a top surface on the opposite side thereof and a polymer foam layer having a top surface, the polymer foam layer disposed over the top surface of the support layer, wherein the support layer comprises a metal foil, wherein the support layer includes a lower polymer layer disposed on the bottom surface of the support layer, and wherein the lower polymer layer includes a single sealant or adhesive coating for securing the bottom member to the container, the sealant or adhesive being heat-activated; and a top member comprising a top surface and bottom surface, and a portion of the top member comprising a tab portion having a top and a bottom surfaces, the bottom surface of the tab portion not secured to the top surface of the polymer foam layer of the bottom member, a portion of the bottom surface of the top member directly secured to the top surface of the polymer foam layer of the bottom member, wherein the top member is secured to the bottom member in a sufficiently strong manner, so that when the sealant or adhesive coating at the bottom surface of the bottom member is secured to a container, the bottom member is removed by pulling on the tab portion.