Patent ID: 9102438
Filing Date: 2015-08-11
Classification: B32B,B65D,Y10T

Abstract:
1. A laminate sheet configured to form a tabbed sealing member with improved heat distribution for sealing to a rim surrounding a container opening, the laminate sheet comprising: a bottom laminate sheet including a lower sealant or adhesive coating for securing a formed tabbed sealing member to a container rim, a metal foil layer above the lower sealant or adhesive coating for heating the lower sealant or adhesive coating in a formed tabbed sealing member, and a non-foam, heat-distributing polyolefin film layer above the metal foil layer; the non-foam, heat-distributing polyolefin film layer including at least a high density polyolefin component and having a density from about 0.96 to about 0.99 g/cc; an upper laminate sheet including a first portion secured to the non-foam, heat distributing polyolefin film layer and a second portion not secured to the non-foam, heat distributing polyolefin film layer so that a when a tabbed sealing member is formed out of the laminate sheet a pull tab is defined by part of the upper laminate sheet second portion; a release strip between the upper laminate sheet and the bottom laminate sheet, the release strip secured to the upper laminate sheet but not secured to the bottom laminate sheet to form the upper laminate sheet second portion; and the non-foam, heat distributing polyolefin film layer is a sufficient thickness so that when the lower sealant or adhesive coating of a formed tabbed sealing member is secured to a container, a formed tabbed sealing member can be removed from the container by the pull tab without separating the upper laminate sheet from the bottom laminate sheet or rupturing the non-foam, heat-distributing polyolefin film layer.