Abstract: A pull-tab sealing member for a container is provided having a pressure sensitive adhesive for sealing to the container. The sealing members herein include a foam layer and a non-foam polymer layer between the foam layer and a tab.

Abstract: Various enhancements of tabbed seals are provided herein with enhanced grasping functionality. Such enhancements include an oversized tab structure for increasing the overall surface area of the tab. In some forms, the tab has been configured such that the overall gripping tab is larger, but a portion thereof is temporarily adhered to the lower laminate, such as during seal and/or cap installation. Instead, the gripping tab includes a small free portion and then a second, temporarily bonded portion that can either release or rupture, permitting the overall grippable portion of the tab to be large.

Abstract: Various enhancements of tabbed seals are provided herein with enhanced grasping functionality. Such enhancements include an anti-slip coating, a polymer adhesive layer, embossing, increasing the thickness of the tab, and/or increasing the overall surface area of the tab.

Abstract: A tamper evident tabbed sealing member for sealing to a rim surrounding a container opening is described that includes a multi-layer laminate configured to isolate a residual ring of material that remains on a container land area upon seal removal.

Abstract: Various enhancements of tabbed seals are provided herein with enhanced tab functionality. Such enhancements include a lacquer coating, such as one-part and two-part coatings, which can help minimize tab sticking to the lower laminate. Further, the lacquer can help decrease air bubbles under the tab and also provide visual enhancements to the tab.

Abstract: Tabbed sealing members with a robust tab structure having additional support under the tab and at a tab pivot or hinge joint.

Abstract: A pull-tab sealing member for a container providing a foamed polymer layer positioned within the sealing member for effective heat sealing to the container together with a lower laminate below a tab capable of tearing to provide a tamper evident structure below the tab.

Abstract: A sealing member for a container is provided having a bottom heat sealable layer. The sealing members herein may be suitable for sealing on glass containers and/or for use with fat and oil containing materials. The heat sealable layer may include ethylene acrylic acid and a polyolefin plastomer.

Abstract: A tamper evident tabbed sealing member for sealing to a rim surrounding a container opening is described that includes a multi-layer laminate configured to isolate a residual ring of material that remains on a container land area upon seal removal.

Abstract: A tamper evident tabbed sealing member for sealing to a rim surrounding a container opening is described that includes a multi-layer laminate configured to isolate a residual ring of material that remains on a container land area upon seal removal.

Abstract: Tabbed sealing members with a robust tab structure having additional support under the tab and at a tab pivot or hinge joint.

Abstract: A sealing member for a container is provided having a bottom heat sealable layer. The sealing members herein may be suitable for sealing on glass containers and/or for use with fat and oil containing materials. The heat sealable layer may include ethylene acrylic acid and a polyolefin plastomer.

Abstract: A sealing member or closure for a container is provided having a protected security component and a removal tab. The sealing member is provided in the form of a one-piece or a two-piece construction and has a tab and an optical security component configured to be protected such that the optical clarity of the security component is maintained after induction sealing.

Abstract: A pull-tab sealing member for a container providing a foamed polymer layer positioned within the sealing member for effective heat sealing to the container together with a lower laminate below a tab capable of tearing to provide a tamper evident structure below the tab.

Abstract: A pull-tab sealing member for a container containing an upper laminate forming a pull-tab bonded to a lower laminate capable of being heat sealed to a container's mouth or opening. The upper laminate defines the pull tab wholly within a perimeter or circumference of the seal. The sealing member further includes a sub tab layer or member under the gripping tab for concentric structural support.

Abstract: A pull-tab sealing member for a container containing an upper laminate forming a pull-tab bonded to a lower laminate capable of being heat sealed to a container's mouth or opening. The upper laminate defines the pull tab wholly within a perimeter or circumference of the seal. The sealing member further includes a sub tab layer or member under the gripping tab for concentric structural support.

Abstract: A primary laminate including a tabstock in which a seal laminate including a foil layer and a top foam layer, a tabstock and a plastic film stock are fed to a laminating station is provided herein. At the lamination station, a curtain of polymeric adhesive is extruded between the plastics film stock and the top face of the primary substrate, which is partly comprised of the top face of the tabstock and partly comprised of the top foam layer of the seal laminate. Use of primary laminates obtained by such a process to form seals for sealing a container, for food or drink stored at low temperatures, is also described.

Abstract: A pull-tab sealing member for a container containing an upper laminate defining a circular segment and forming a pull-tab bonded to a lower laminate capable of being heat sealed to a container's mouth or opening. The upper laminate defines the pull tab wholly within a perimeter or circumference of the seal, but the upper laminate does not extend the full width of the sealing member in order to define the gripping tab.

Abstract: A pull-tab sealing member for a container containing an upper laminate forming a pull-tab bonded to a lower laminate capable of being heat sealed to a container's mouth or opening. The upper laminate defines the pull tab wholly within a perimeter or circumference of the seal. The sealing member further includes a sub tab layer or member under the gripping tab for structural support.

Abstract: A seal laminate for closing a mouth of a container is provided. The seal laminate includes a heat seal layer, a structural base support layer and upper and lower dimensional stable layers. The heat seal layer bonds the laminate to a rim surrounding the container's mouth. The structural base support layer may be comprised of a pulp, paper, cardboard, chipboard, paperboard, or cellulose based material having a moisture content of about 3 to about 6 percent and is positioned above the heat seal layer. The upper and lower dimensionally stable layers are disposed above and below the structural base support layer and are sized to balance the vertical forces on the structural base support layer upon exposure to about 60 percent or greater relative humidity. The upper and lower dimensionally stable layers have a water vapor transmission rate of about 1.5 g/100 in2/24 hours or below.