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US 2014/0209608 A1Published application
Tabbed Sealing Member With Improved Heat Distribution For A Container
AssigneeSelig Sealing Products, Inc.
InventorsRobert William Thorstensen-Woll, Joseph Smelko
Life of this patent
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Abstract
A tabbed seal as well as a method of manufacture is provided for sealing containers such as bottles, jars and the like. The tabbed seal is formed with a lower sheet-like structure having a non-foam, heat-distributing layer thereon.
Claims20
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.
3 more elements
A tabbed sealing member including a non-foam, heat-distributing polyolefin film layer for sealing to a rim surrounding a container opening, the tabbed sealing member comprising:
- a bottom laminate sheet including a lower sealant or adhesive coating for securing the tabbed sealing member to a container rim, a metal foil layer above the lower sealant or adhesive coating, 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 to form a pull tab;
- and
- the non-foam, heat distributing polyolefin film layer is a sufficient thickness so that when the lower sealant or adhesive coating is secured to a container, the 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.
2 more elements
Dependencies are inferred from the claim text.