Tabbed sealing member with improved heat distribution for a container
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-007/12
B65D-017/00
B65D-077/20
출원번호
US-0809771
(2015-07-27)
등록번호
US-9815589
(2017-11-14)
발명자
/ 주소
Thorstensen-Woll, Robert William
Smelko, Joseph
출원인 / 주소
Selig Sealing Products, Inc.
대리인 / 주소
Fitch, Even, Tabin & Flannery, LLP
인용정보
피인용 횟수 :
0인용 특허 :
83
초록
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.
대표청구항▼
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 c
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; andthe 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. 2. The laminate sheet of claim 1, wherein the non-foam, heat-distributing polyolefin film layer is selected from the group consisting of polyethylene, polypropylene, ethylene-propylene copolymers, and blends thereof. 3. The laminate sheet of claim 1, wherein the non-foam, heat distributing polyolefin film layer is at least about 2 mils thick. 4. The laminate sheet of claim 1, wherein the release strip is PET. 5. The laminate sheet of claim 1, wherein the upper laminate sheet includes a polymer support layer and a layer of EVA under the polymer support layer. 6. The laminate sheet of claim 5, wherein the layer of EVA secures the upper laminate sheet to the bottom laminate sheet at the upper laminate sheet first portion. 7. The laminate sheet of claim 6, wherein the polymer support layer is selected from PET, nylon, PEN, and blends thereof. 8. The laminate sheet of claim 1, wherein the non-foam, heat-distributing polyolefin film layer has a density of at least about 0.97 g/cc. 9. The laminate sheet of claim 1, wherein the non-foam, heat distributing polyolefin film layer is from about 2.5 to about 10 mils thick. 10. The laminate sheet of claim 1, wherein the non-foam, heat distributing polyolefin film layer is a bilayer of polyolefins. 11. 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; andthe 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. 12. The tabbed sealing member of claim 11, wherein the non-foam, heat-distributing polyolefin film layer is selected from the group consisting of polyethylene, polypropylene, ethylene-propylene copolymers, and blends thereof. 13. The tabbed sealing member of claim 11, wherein the non-foam, heat distributing polyolefin film layer is at least about 2 mils thick. 14. The tabbed sealing member of claim 11, further comprising 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. 15. The tabbed sealing member of claim 11, wherein the upper laminate sheet includes a polymer support layer and a layer of EVA under the polymer support layer. 16. The tabbed sealing member of claim 15, wherein the layer of EVA secures the upper laminate sheet to the bottom laminate sheet at the upper laminate sheet first portion. 17. The tabbed sealing member of claim 16, wherein the polymer support layer is selected from PET, nylon, PEN, and blends thereof. 18. The tabbed sealing member of claim 11, wherein the non-foam, heat-distributing polyolefin film layer has a density of at least about 0.97 g/cc. 19. The tabbed sealing member of claim 11, wherein the non-foam, heat distributing polyolefin film layer is from about 2.5 to about 10 mils thick. 20. The tabbed sealing member of claim 11, wherein the non-foam, heat distributing polyolefin film layer is a bilayer of polyolefins.
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