[특허]Containers and materials with improved punctureability

Printpack Illinois, Inc.

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특허 상세정보

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Containers and materials with improved punctureability

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B65D-085/804 B65D-021/02 C08K-003/34 B65D-077/20 B65D-077/22
출원번호	US-0481404 (2017-04-06)
등록번호	US-10099850 (2018-10-16)
발명자 / 주소	O'Brien, Patrick L. Elleithy, Rabeh Bowen, Harold Stephen
출원인 / 주소	Printpack Illinois, Inc.
대리인 / 주소	Eversheds Sutherland (US) LLP
인용정보	피인용 횟수 : 0 인용 특허 : 81

초록

The present description includes containers having an improved puncture design that can be punctured without substantial deformation of the container. Such containers are particularly suitable for use in preparing beverages using automatic machines, particularly those used for preparation of single serve beverages. Also provided are thermoplastic materials having improved punctureability for use in containers, containers for preparation of a beverage, and methods for preparing a beverage using such containers.

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1. A thermoplastic container, comprising: a substantially circular base; anda frustoconical wall extending from an edge of the base and defining a cavity therein,wherein the base comprises an annular support structure surrounding a continuous region, the annular support structure being positioned from 0.5 mm to 10 mm from the edge of the base, having a width of from 0.5 mm to 25 mm, and having a height from 0.5mm to 5 mm, relative to the edge of the base,wherein the annular support structure comprises inner and outer sidewalls and a support surface extending between the inner and outer sidewalls, the support surface having the width,wherein the base comprises an annular wall extending between the outer sidewall of the annular support structure and the edge of the base, the annular wall extending completely along a plane parallel to a plane along which the support surface of the annular support structure completely extends,wherein the container is formed of a thermoplastic monolayer material comprising polypropylene in an amount of at least 70 percent by weight or a thermoplastic multilayer material comprising one or more layers that comprise polypropylene in an amount of at least 70 percent by weight, andwherein the base is punctureable by a single needle and displays a puncture load of less than 3 kg, measured using a sharp needle comprising a pointed puncture point, or of less than 5 kg, measured using a dull needle comprising a curved puncture point. 2. The thermoplastic container of claim 1, wherein the annular support structure defines a puncture region of the base. 3. The thermoplastic container of claim 1, wherein: the container further comprises a stacking shoulder which intersects and extends laterally from the frustoconical wall, such that the container has a height measured from the stacking shoulder to the edge of the base, anda ratio of the height of the annular support structure to the height of the container is from 0.5:100 to 5:100. 4. The thermoplastic container of claim 1, wherein: the container further comprises a stacking shoulder which intersects and extends laterally from the frustoconical wall, andthe frustoconical wall is free of radial protrusions or shoulders other than the stacking shoulder. 5. A thermoplastic container, comprising: a substantially circular base;a frustoconical wall extending from an edge of the base and defining a cavity therein; anda stacking shoulder which intersects and extends laterally from the wall, the container having a height measured from the stacking shoulder to the edge of the base;wherein the base comprises an annular support structure surrounding a continuous region, the annular support structure being positioned from 0.5 mm to 10 mm from the edge of the base, having a width of from 0.5 mm to 25 mm, and having a height from 0.5mm to 5 mm, relative to the edge of the base;wherein a ratio of the height of the annular support structure to the height of the container is from 0.5:100 to 5:100,wherein the base is punctureable by a single needle and displays a puncture load of less than 3 kg, measured using a sharp needle comprising a pointed puncture point, or of less than 5 kg, measured using a dull needle comprising a curved puncture point,wherein the annular support structure comprises inner and outer sidewalls and a support surface extending between the inner and outer sidewalls, the support surface having the width, andwherein the base comprises an annular wall extending between the outer sidewall of the annular support structure and the edge of the base, the annular wall extending completely along a plane parallel to a plane along which the support surface of the annular support structure completely extends. 6. The thermoplastic container of claim 5, wherein the container is formed of a thermoplastic material comprising a thermoplastic polymer selected from polypropylene, polystyrene, nylon, polyethylene, and combinations thereof. 7. The thermoplastic container of claim 5, wherein the thermoplastic container is formed of a thermoplastic monolayer material comprising polypropylene in an amount of at least 70 percent by weight or a thermoplastic multilayer material comprising one or more layers that comprise polypropylene in an amount of at least 70 percent by weight. 8. The thermoplastic container of claim 5, wherein the frustoconical wall is free of radial protrusions or shoulders other than the stacking shoulder. 9. A container for forming a beverage comprising the thermoplastic container of claim 5, and further comprising: a filter disposed in the cavity of the container and defining first and second chambers in the cavity;a beverage medium disposed in the cavity and arranged to interact with a liquid introduced into the container to form a beverage; anda lid attached to a rim of the container to contain the beverage medium and filter disposed therein. 10. A thermoplastic container comprising: a substantially circular base;a frustoconical wall extending from an edge of the base and defining a cavity therein; anda stacking shoulder which intersects and extends laterally from the wall;wherein the base comprises an annular support structure surrounding a continuous region, the annular support structure being positioned from 0.5 mm to 10 mm from the edge of the base, having a width of from 0.5 mm to 25 mm, and having a height from 0.5mm to 5 mm, relative to the edge of the base,wherein the frustoconical wall is free of radial protrusions or shoulders other than the stacking shoulder,wherein the base is punctureable by a single needle and displays a puncture load of less than 3 kg, measured using a sharp needle comprising a pointed puncture point, or of less than 5 kg, measured using a dull needle comprising a curved puncture pointwherein the annular support structure comprises inner and outer sidewalls and a support surface extending between the inner and outer sidewalls, the support surface having the width, andwherein the base comprises an annular wall extending between the outer sidewall of the annular support structure and the edge of the base, the annular wall extending completely along a plane parallel to a plane along which the support surface of the annular support structure completely extends. 11. The thermoplastic container of claim 10, wherein the container is formed of a thermoplastic material comprising a thermoplastic polymer selected from polypropylene, polystyrene, nylon, polyethylene, and combinations thereof. 12. The thermoplastic container of claim 10, wherein the thermoplastic container is formed of a thermoplastic monolayer material comprising polypropylene in an amount of at least 70 percent by weight or a thermoplastic multilayer material comprising one or more layers that comprise polypropylene in an amount of at least 70 percent by weight. 13. The thermoplastic container of claim 10, wherein: the container has a height measured from the stacking shoulder to the edge of the base, anda ratio of the height of the annular support structure to the height of the container is from 0.5:100 to 5:100. 14. The thermoplastic container of claim 10, wherein the annular support structure defines a puncture region of the base. 15. A container for forming a beverage comprising the thermoplastic container of claim 10, and further comprising: a filter disposed in the cavity of the container and defining first and second chambers in the cavity;a beverage medium disposed in the cavity and arranged to interact with a liquid introduced into the container to form a beverage; anda lid attached to a rim of the container to contain the beverage medium and filter disposed therein. 16. A container for forming a beverage, comprising: a thermoplastic container, comprising: a substantially circular base; anda frustoconical wall extending from an edge of the base and defining a cavity therein,wherein the base comprises an annular support structure surrounding a continuous region, the annular support structure being positioned from 0.5 mm to 10 mm from the edge of the base, having a width of from 0.5 mm to 25 mm, and having a height from 0.5mm to 5 mm, relative to the edge of the base,wherein the annular support structure comprises inner and outer sidewalls and a support surface extending between the inner and outer sidewalls, the support surface having the width, andwherein the base comprises an annular wall extending between the outer sidewall of the annular support structure and the edge of the base, the annular wall extending completely along a plane parallel to a plane along which the support surface of the annular support structure completely extends;a filter disposed in the cavity of the thermoplastic container and defining first and second chambers in the cavity;a beverage medium disposed in the cavity and arranged to interact with a liquid introduced into the thermoplastic container to form a beverage; anda lid attached to a rim of the thermoplastic container to contain the beverage medium and filter disposed therein. 17. The container of claim 16, wherein the thermoplastic container is formed of a thermoplastic material comprising a thermoplastic polymer selected from polypropylene, polystyrene, nylon, polyethylene, and combinations thereof. 18. The container of claim 16, wherein: the thermoplastic container is formed of a thermoplastic monolayer material comprising polypropylene in an amount of at least 70 percent by weight or a thermoplastic multilayer material comprising one or more layers that comprise polypropylene in an amount of at least 70 percent by weight, andthe base is punctureable by a single needle and displays a puncture load of less than 3 kg, measured using a sharp needle comprising a pointed puncture point, or of less than 5 kg, measured using a dull needle comprising a curved puncture point. 19. The container of claim 16, wherein the annular support structure defines a puncture region of the base. 20. The container of claim 16, wherein: The thermoplastic container further comprises a stacking shoulder which intersects and extends laterally from the frustoconical wall, such that the thermoplastic container has a height measured from the stacking shoulder to the edge of the base, anda ratio of the height of the annular support structure to the height of the thermoplastic container is from 0.5:100 to 5:100. 21. The container of claim 16, wherein: the thermoplastic container further comprises a stacking shoulder which intersects and extends laterally from the frustoconical wall, andthe frustoconical wall is free of radial protrusions or shoulders other than the stacking shoulder.

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