WO2014066901A1 - Container with improved puncture design - Google Patents
Container with improved puncture design Download PDFInfo
- Publication number
- WO2014066901A1 WO2014066901A1 PCT/US2013/067110 US2013067110W WO2014066901A1 WO 2014066901 A1 WO2014066901 A1 WO 2014066901A1 US 2013067110 W US2013067110 W US 2013067110W WO 2014066901 A1 WO2014066901 A1 WO 2014066901A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- container
- support structure
- outer annular
- base
- beverage
- Prior art date
Links
- 235000013361 beverage Nutrition 0.000 claims abstract description 33
- 239000012815 thermoplastic material Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 3
- 230000002093 peripheral effect Effects 0.000 claims description 27
- 239000000654 additive Substances 0.000 claims description 20
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 14
- 239000004743 Polypropylene Substances 0.000 claims description 12
- -1 polypropylene Polymers 0.000 claims description 12
- 229920001155 polypropylene Polymers 0.000 claims description 10
- 239000004793 Polystyrene Substances 0.000 claims description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 7
- 239000002667 nucleating agent Substances 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 6
- 241001122767 Theaceae Species 0.000 claims description 5
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical class [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 3
- 239000000454 talc Substances 0.000 claims description 3
- 229910052623 talc Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000008116 calcium stearate Substances 0.000 claims description 2
- 235000013539 calcium stearate Nutrition 0.000 claims description 2
- 235000019219 chocolate Nutrition 0.000 claims description 2
- 235000019359 magnesium stearate Nutrition 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims 4
- 239000007788 liquid Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 12
- 239000004594 Masterbatch (MB) Substances 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 229920001519 homopolymer Polymers 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 238000009472 formulation Methods 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000002775 capsule Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000518994 Conta Species 0.000 description 1
- 229920006397 acrylic thermoplastic Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920006025 bioresin Polymers 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 101150038956 cup-4 gene Proteins 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 235000012171 hot beverage Nutrition 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 235000021092 sugar substitutes Nutrition 0.000 description 1
- 239000003765 sweetening agent Substances 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
- B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
- B65D85/8043—Packages adapted to allow liquid to pass through the contents
- B65D85/8061—Filters
Definitions
- the present application relates general ly to the field of containers for preparation of beverages, especially coffee and tea.
- These containers commonly are referred to as cartridges, cups, capsules, or pods, and are particularly suitable for use in the preparation of a single-serve beverage,
- Embodiments of the present description address the above-described needs by providing a container including a substantially circular and horizontally extending base, a frustoconically shaped wall extending therefrom and defining a cavity therein, and a stacking shoulder which intersects and extends laterally from the wall.
- the base includes an outer annular peripheral support stmctare including a plurality of recesses therein.
- the base optionally may include an inner annular support stmctare that together with the outer annular peripheral support structure defines a continuous -puncture region sized and shaped to permit a puncture therein without interference and without substantial deformation of the container.
- containers for preparation of a beverage usina the above-described container and methods for preparing a beveraue usirss such conta]ners.
- FIG. 1 is a side view of art embodiment of a container according to a first embodiment.
- FIG. 2 is a bottom view the container illustrated in FIG. 1.
- FIG. 3 is a top view of the container illustrated in FIG. 1.
- FIG. 4 is a forward lower perspective view of the container illustrated in FIG. 1.
- FIG. 5 is a forward lower perspective view of a container according to a second embodiment.
- FIG. 6A and FIG . 6B are schematic illustrations of a design that may be applied to the inner surface of a cup base according to embodiments
- FIG. 7A and FIG. 7B are schematic illustrations defining various parameters of a container according to embodiments.
- Embodiments of the present application address the above-described needs by providing a container for preparation of a beverage.
- the term "container” is synonymous with cartridges, cups, capsules, pods, and the like, that may be used in the preparation of a beverage.
- the container generally comprises a cup-shaped container with a base and a frustoconically shaped sidewall defining an opening.
- the base includes an outer annular peripheral support structure comprising a plurality of recesses and optionally an inner support structure.
- a continuous puncture region disposed between the outer annular peripheral support structure and optional inner support structure is configured such to permit the container base to be punctured in the continuous puncture region daring the preparation of the beverage.
- An exemplary embodiment of a container 10 is further illustrated in FIGS. 1-4. "he container 10 comprises the base 12 and the tYustoconically shaped sidewali 14 defining an opening 16.
- the sidewali 14 may include a radially outwardly protruding lip 18 surrounding the opening 16.
- the radially outwardly protruding lip 18 further comprises a stacking shoulder 19 that intersects and extends laterally from the sidewali 14.
- the base 12 includes an outer peripherai support structure 20. an inner support structure 22, and a continuous puncture region 24 therebetween.
- the outer peripherai support structure 20 is an annular shape having a plural i ty of recesses 26 similar in appearance to an inverted parapet (i.e. , castle-like structure of a battlement or crenel lati on).
- the inner support structure 22 is an annular shape or a circular shape.
- the continuous puncture region between the outer peripheral support structure 20 and inner support structure 22 is configured to permit the puncture of the container base at any position in the continuous puncture region 24 during preparation of the beverage.
- outer peripheral support structure 20 or inner support structure 22 are annular shapes, other shapes also may be used (e.g., elliptical, triangular, square, hexagonal, heptagonal, octagonal, and the like), provided the structure does not interfere with puncturing of the base in the continuous puncture region 24.
- the concentric annular shaped support structures are particularly suitable for defining a continuous puncture region that may be punctured at any position, thereby allowing the container to be positioned within the beverage machi ne without regard for the position of the puncture region.
- the outer peripheral support structure may comprise more than one annular shape having a plurali ty of recesses as il lustrated in FIG. 5.
- the outer peripheral support structure 122 may comprise a first outer annular shape 123' having a plurality of recesses 126 and a second outer annular shape 123" having a plurality of recesses 126 positioned inside the first outer annular shape 123' and outside the continuous puncture region.
- the plurality recesses of the 126 of the first outer an nular shape 123' and second outer annular shape 123" may be offset from each other, in embodiments, the first outer peripheral support structure and the second outer peripheral support structure have substantially the same dimensions.
- the dimensions of the first outer peripheral support structure and second outer peripheral support structure may be different (i.e., different widths, recess sizes, number of recesses, and the like),
- the container further comprises other features to facilitate the punctureability of the base.
- the container may include a feature in the inner surface of the base of the container.
- the feature may be effective to weaken the material of the base during its puncture without sacrificing its strength, for example, by providing stress concentrators.
- FIGS. 6A and 6B Two exemplary embodiments of the feature axe illustrated in FIGS. 6A and 6B, which illustrate the designs that may be imprinted in the inner surface of the base of the container. Other designs also may be used.
- the container may be further characterized by the following mathematical relationship
- h is the height of the container from the base 12 to the stacking shoulder 19
- R 1 is the inner radius of the container at the stacking shoulder 19
- Ft is the radius of the base 12 including the outer peripheral support structure 20
- ⁇ is the approach angle.
- the container can further be charac terized by the dimensions of the base features; r is the radius of the base 12 excluding the outer peripheral support structure 20, r 1 is the inner radius of the inner support structure 22 comprising an annular shape, r 2 is the outer radius of the inner support structure 22, w 0 is the width of the outer peripheral support structure 20, d is the width of the continuous puncture region 24 of the base 12, w 1 is the width of the inner support, structure 22 comprising an annular shape, and t is the height of the outer peripheral support structure 20.
- the base 12 is further characterized by the following mathematical relationships;
- r 1 and r 2 independent from one another, may be from about 0.0 to about 5.0 mm.
- r 2 > r 1 and r 1 and 3 ⁇ 4 independent from one another may be from about 0.01 to about 5,0 ma
- r 1 may be 3.8 ram and r 2 may be 1.3 mm such that w 1 is 2.5 mm. in embodiments in which there is no inner support structure, w 1 , r 1 , and r 2 are 0.0.
- the outer peripheral support structure 20 can still further be characterized, by the feature angle ( ⁇ ), the recess angle ( ⁇ 1 , and the number of features (n), which have the following relationships:
- the height of the outer peripheral support, structure (t) is from about 0.5 to about 2.0 mm
- the height of the container (h) from the base to the stacking shoulder is about 39.4 mm
- the inner radius of the container at the stacking shoulder (R 1 ) is about 43.7 mm.
- the approach angle is from about 2 degrees to about 10 degrees. Exemplary ranges of the foregoing variables are summarized in the table below.
- a self-supporting filter element (not illustrated) known to those skilled in the art. may be disposed in the container and either removably or permanently joined to an interior surface of the container.
- the filter may be in the shape of an inverted, hollow cone having a curved wall tapering evenly from a rim surrounding an opening.
- the fiiter element then may be placed in the container so that the apex of the cone is supported on and. slightly flattened by the base of the container, thereby enlarging the volume within the cone and providing beneficial support for the filter element.
- the container provided herein further comprises a piereeable cover in a hermetically sealed relationship with the Hp of the container, closing the opening to form a cartridge.
- the cover desirably is formed of an impermeable and imperforate material that may be pierced with an instrument, such as a tubular needle, through which hot water is delivered for preparation of the beverage.
- the co ver may comprise a polymer film or a foil heat-sealed to the l ip of the container.
- the containers may be prepared by molding and thermofotmmg the container from a thermoplastic material.
- the thermoplastic material is substantially impermeable and imperforate.
- thermoplastic materials include polyolefins such as polypropylene and polyethylene, polystyrene, nylon, and other polymers.
- the thermoplastic material he a bio-based resin, readily recycleable, and/or comprise at least a portion of recycled material
- the thermoplastic material may comprise a recycled polypropylene base resin.
- the thermoplastic material may be blended with one or more additives to impart the desired mechanical and thermal properties to the container.
- the thennoplasiic material may be blended with one or more additives to impart the desired stiffness to the container.
- the additive comprises an immiscible polymer that may function as a stress concentrator by hindering the natural ability of the thermoplastic material to deform plastically and promoting controlled crack propagation.
- immiscible polymers that may be suitable for use with a thermoplastic material comprising polypropylene include acrylics, styrenics, or their blends and copolymers with polyolefins.
- one additive comprises a nucleating agent
- a second additive comprises a metallic stearate, non-limiting examples of which include calcium stearate, magnesium stearate, zinc stearate, and combinations thereof.
- Other non-limiting examples of additives include calcium carbonate, talc, clays, and nano grades of these additives.
- the containers provided herein ha ve a puncture load of less than about 6 kg.
- the "puncture load” means the force required to puncture the continuous pone tore region in the base of the container using a needle. It should he appreciated that the puncture load depends in part on the type of needle used to measure the puncture ioad of a container. For example, the puncture load measured using a dull needle generally will be greater than the puncture load measured using a sharp needle.
- the containers may have a puncture load measured using a sharp needle of less than about 3 kg, less than about 2.75 kg, or less than about 2.5 kg.
- the containers may have a puncture load measured using a sharp needle of about. 4.2 to about 3 kg, about 2.99 to about 2.75 kg, or about 2.74 to about 2.5 kg. in embodiments, the containers may have a puncture load measured using a dull needle of less than about 5 kg. For example, the containers may have a puncture load measured using a dull needle of about 4.0 to about 5.0 kg.
- the container may be configured to receive an insert in which the dry beverage ingredients are disposed.
- the container may be configured to receive an insert comprising a filter cup in which are disposed the ingredients for preparing a beverage.
- the container may further comprise a filter cup comprising a brew substance, non-limiting examples of which include coffee grinds, ground tea leaves, chocolate, flavored, powders, and the like.
- the brew substance also may include a combination of dry milk, sugar or sugar substitute, or other flavorings to enhance the quality of the resulting beverage.
- the containers embodied herein are particularly suited for use in an automatic machine, such as a coffee brewing machine.
- a piercing member punctures the cover to introduce pressurized hot water through the hole where it comes into contact with the beverage ingredients disposed in the filter.
- a second piercing member punctures the base of the container at any position in the puncture region to enable the prepared beverage to flow out of the container and be dispensed into a cup or container for consumption by the consumer.
- 1.9 ounce containers were prepared, from mono-layer sheets and compared to a commercially available K-Cup® to evaluate the effect of the different polymer formulations on the punctureability of an exemplary container.
- Polypropylene base resins included recycled PP, a homopolymer polypropylene ("Homopolymer PP 1 "), and a medium impact polystyrene were used either alone or in combination with the additives white pigmented PS, CaCO 3 masterbatch 1 or CaCO 3 masterbatch 2, and PolyOne® proprietary masterbatch.
- the polymer formulations and results are provided in the following tables.
- the polystyrene-based K-Cup used as a control had the lowest "vacuum strength" of the containers tested, had a moderate top-load, the lowest side-load, and the lowest puncture load.
- Neither the neat polypropylene (Cup 4) nor the polypropylene with a 3% loading of CaCO 3 masterbatch 1 (Cup 6) were capable of being punctured.
- 1,9 ounce containers were prepared from mono-layer sheets using various combinations of polypropylene and additives and compared to a commercially available K-Cup® to evaluate the effect of the polymer materials on the puoctureability of an exemplary container.
- Polypropylene base resins included Homopolymer PP 1 , High Stiffness Homopolymer PP 1 , High Stiffness Homopolymer 2, High Stiffness
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- Engineering & Computer Science (AREA)
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Abstract
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.
Description
CONTAINER WITH IMPROVED PUNCTURE DESIGN
[0001]
CROSS-REFERENCE TO RELATED APPLICATIONS
[0002]
[0001 ] The present application claims priority under 35 U.S.C. § 119(e) to U.S.
Provisional Application No, 61/719,136 filed on October 26, 2012, the disclosure of which is incorporated herein by reference in its entirety.
BACKGROUND
[0002] The present application relates general ly to the field of containers for preparation of beverages, especially coffee and tea. These containers commonly are referred to as cartridges, cups, capsules, or pods, and are particularly suitable for use in the preparation of a single-serve beverage,
[0003] In recent years, single-serve beverage machines have become popular in homes and businesses as a quick and convenient manner of brewing beverages. These machines generally brew coffee, tea, or other hot beverages through polymer containers that may have integral filters and are filled with coffee grinds, tea leaves, or other soluble products. Upon brewing of these products, the con tainer may be easily discarded so that the machine is available for preparation of subsequent beverages. These containers thereby enable users to customize their beverages and also enjoy freshly brewed beverages quickly and easily,
[0004] Although convenient, existing containers used for the preparation of beverages have numerous drawbacks. For example, many commercially available containers are prepared using materials that are less easily recycled. This is due at least in part due to the structural characteristics that are required for these containers. For example, the containers must be sufficiently strong to permit puncturing of the base of the container without substantial deformation of the container. Thus, there exists a need for a structure that permits use of more easily recycled materials while still having su fficien t structural integrity,
SUMMARY OF THE DESCRIPTION
[0005] Embodiments of the present description address the above-described needs by providing a container including a substantially circular and horizontally extending base, a frustoconically shaped wall extending therefrom and defining a cavity therein, and a stacking shoulder which intersects and extends laterally from the wall. The base includes
an outer annular peripheral support stmctare including a plurality of recesses therein. The base optionally may include an inner annular support stmctare that together with the outer annular peripheral support structure defines a continuous -puncture region sized and shaped to permit a puncture therein without interference and without substantial deformation of the container.
[0006] Also provided in embodiments herein are containers for preparation of a beverage usina the above-described container and methods for preparing a beveraue usirss such conta]ners.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] FIG. 1 is a side view of art embodiment of a container according to a first embodiment.
[0008] FIG. 2 is a bottom view the container illustrated in FIG. 1.
[0009] FIG. 3 is a top view of the container illustrated in FIG. 1.
[0010] FIG. 4 is a forward lower perspective view of the container illustrated in FIG. 1.
[0011] FIG. 5 is a forward lower perspective view of a container according to a second embodiment.
[0012] FIG. 6A and FIG . 6B are schematic illustrations of a design that may be applied to the inner surface of a cup base according to embodiments,
[0013] FIG. 7A and FIG. 7B are schematic illustrations defining various parameters of a container according to embodiments,
DETAILED DESCRIPTION
[0014] Embodiments of the present application address the above-described needs by providing a container for preparation of a beverage. As used herein, the term "container" is synonymous with cartridges, cups, capsules, pods, and the like, that may be used in the preparation of a beverage.
[0015] The container generally comprises a cup-shaped container with a base and a frustoconically shaped sidewall defining an opening. In an embodiment, the base includes an outer annular peripheral support structure comprising a plurality of recesses and optionally an inner support structure. A continuous puncture region disposed between the outer annular peripheral support structure and optional inner support structure is configured such to permit the container base to be punctured in the continuous puncture region daring the preparation of the beverage.
[0016] An exemplary embodiment of a container 10 is further illustrated in FIGS. 1-4. "he container 10 comprises the base 12 and the tYustoconically shaped sidewali 14 defining an opening 16. The sidewali 14 may include a radially outwardly protruding lip 18 surrounding the opening 16. In one aspect, the radially outwardly protruding lip 18 further comprises a stacking shoulder 19 that intersects and extends laterally from the sidewali 14.
[0017] The base 12 includes an outer peripherai support structure 20. an inner support structure 22, and a continuous puncture region 24 therebetween. In embodiments, the outer peripherai support structure 20 is an annular shape having a plural i ty of recesses 26 similar in appearance to an inverted parapet (i.e. , castle-like structure of a battlement or crenel lati on). In embodiments, the inner support structure 22 is an annular shape or a circular shape.
[0018] The continuous puncture region between the outer peripheral support structure 20 and inner support structure 22 is configured to permit the puncture of the container base at any position in the continuous puncture region 24 during preparation of the beverage. Although the presently described embodiment of outer peripheral support structure 20 or inner support structure 22 are annular shapes, other shapes also may be used (e.g., elliptical, triangular, square, hexagonal, heptagonal, octagonal, and the like), provided the structure does not interfere with puncturing of the base in the continuous puncture region 24. Those skilled in the art will appreciate, however, that the concentric annular shaped support structures are particularly suitable for defining a continuous puncture region that may be punctured at any position, thereby allowing the container to be positioned within the beverage machi ne without regard for the position of the puncture region.
[0019] In embodiments, the outer peripheral support structure may comprise more than one annular shape having a plurali ty of recesses as il lustrated in FIG. 5. For example, the outer peripheral support structure 122 may comprise a first outer annular shape 123' having a plurality of recesses 126 and a second outer annular shape 123" having a plurality of recesses 126 positioned inside the first outer annular shape 123' and outside the continuous puncture region. The plurality recesses of the 126 of the first outer an nular shape 123' and second outer annular shape 123" may be offset from each other, in embodiments, the first outer peripheral support structure and the second outer peripheral support structure have substantially the same dimensions. Those skilled in the art will
appreciate, however, that the dimensions of the first outer peripheral support structure and second outer peripheral support structure may be different (i.e., different widths, recess sizes, number of recesses, and the like),
[0020] In embodiments, the container further comprises other features to facilitate the punctureability of the base. For example, in an embodiment the container may include a feature in the inner surface of the base of the container. The feature may be effective to weaken the material of the base during its puncture without sacrificing its strength, for example, by providing stress concentrators. Two exemplary embodiments of the feature axe illustrated in FIGS. 6A and 6B, which illustrate the designs that may be imprinted in the inner surface of the base of the container. Other designs also may be used.
[0021] In an embodiment, the container may be further characterized by the following mathematical relationship;
wherein h is the height of the container from the base 12 to the stacking shoulder 19, R1 is the inner radius of the container at the stacking shoulder 19, Ft is the radius of the base 12 including the outer peripheral support structure 20, and Φ is the approach angle.
[0022] The container can further be charac terized by the dimensions of the base features; r is the radius of the base 12 excluding the outer peripheral support structure 20, r1 is the inner radius of the inner support structure 22 comprising an annular shape, r2 is the outer radius of the inner support structure 22, w0 is the width of the outer peripheral support structure 20, d is the width of the continuous puncture region 24 of the base 12, w1 is the width of the inner support, structure 22 comprising an annular shape, and t is the height of the outer peripheral support structure 20. Accordingly, in certain embodiments the base 12 is further characterized by the following mathematical relationships;
In embodiments, r1 and r2, independent from one another, may be from about 0.0 to about 5.0 mm. For example, in embodiments in which the inner support structure comprises a circular shape with only a single radius, r1 is zero and w1 = r2, which may be from about 0.01 to about 5.0 mm, in embodiments in which the inner support structure comprises an annular ring, r2 > r1 and r1 and ¾ independent from one another, may be from about 0.01
to about 5,0 ma For example, r1 may be 3.8 ram and r2 may be 1.3 mm such that w1 is 2.5 mm. in embodiments in which there is no inner support structure, w1 , r1 , and r2 are 0.0.
[0023] The outer peripheral support structure 20 can still further be characterized, by the feature angle (θο), the recess angle (θ1 , and the number of features (n), which have the following relationships:
[0024] in embodiments, the height of the outer peripheral support, structure (t) is from about 0.5 to about 2.0 mm, the height of the container (h) from the base to the stacking shoulder is about 39.4 mm, and the inner radius of the container at the stacking shoulder (R1) is about 43.7 mm. In an embodiment, the approach angle is from about 2 degrees to about 10 degrees. Exemplary ranges of the foregoing variables are summarized in the table below.
[0025] In embodiments, a self-supporting filter element (not illustrated) known to those skilled in the art. may be disposed in the container and either removably or permanently joined to an interior surface of the container. For example, the filter may be in the shape of an inverted, hollow cone having a curved wall tapering evenly from a rim surrounding an opening. The fiiter element then may be placed in the container so that the apex of the
cone is supported on and. slightly flattened by the base of the container, thereby enlarging the volume within the cone and providing beneficial support for the filter element.
[0026] In embodiments, the container provided herein further comprises a piereeable cover in a hermetically sealed relationship with the Hp of the container, closing the opening to form a cartridge. The cover desirably is formed of an impermeable and imperforate material that may be pierced with an instrument, such as a tubular needle, through which hot water is delivered for preparation of the beverage. For example, in embodiments the co ver may comprise a polymer film or a foil heat-sealed to the l ip of the container.
[0027] In embodiments, the containers may be prepared by molding and thermofotmmg the container from a thermoplastic material. Desirably, the thermoplastic material is substantially impermeable and imperforate. Non-limiting exampies of suitable
thermoplastic materials include polyolefins such as polypropylene and polyethylene, polystyrene, nylon, and other polymers. In particular embodiments, it is particularly desirable that the thermoplastic material he a bio-based resin, readily recycleable, and/or comprise at least a portion of recycled material For example, in an embodiment the thermoplastic material may comprise a recycled polypropylene base resin.
[0028] in embodiments, the thermoplastic material may be blended with one or more additives to impart the desired mechanical and thermal properties to the container. For example, in embodiments the thennoplasiic material may be blended with one or more additives to impart the desired stiffness to the container. In an embodiment, the additive comprises an immiscible polymer that may function as a stress concentrator by hindering the natural ability of the thermoplastic material to deform plastically and promoting controlled crack propagation. Non-limiting exampies of immiscible polymers that may be suitable for use with a thermoplastic material comprising polypropylene include acrylics, styrenics, or their blends and copolymers with polyolefins. in an embodiment, one additive comprises a nucleating agent, in an embodiment, a second additive comprises a metallic stearate, non-limiting examples of which include calcium stearate, magnesium stearate, zinc stearate, and combinations thereof. Other non-limiting examples of additives include calcium carbonate, talc, clays, and nano grades of these additives.
[0029] Desirably, the containers provided herein ha ve a puncture load of less than about 6 kg. As used herein, the "puncture load" means the force required to puncture the
continuous pone tore region in the base of the container using a needle. It should he appreciated that the puncture load depends in part on the type of needle used to measure the puncture ioad of a container. For example, the puncture load measured using a dull needle generally will be greater than the puncture load measured using a sharp needle. For example, in embodiments the containers may have a puncture load measured using a sharp needle of less than about 3 kg, less than about 2.75 kg, or less than about 2.5 kg. In embodiments, the containers may have a puncture load measured using a sharp needle of about. 4.2 to about 3 kg, about 2.99 to about 2.75 kg, or about 2.74 to about 2.5 kg. in embodiments, the containers may have a puncture load measured using a dull needle of less than about 5 kg. For example, the containers may have a puncture load measured using a dull needle of about 4.0 to about 5.0 kg.
[0030] In embodiments, the container may be configured to receive an insert in which the dry beverage ingredients are disposed. For example, the container may be configured to receive an insert comprising a filter cup in which are disposed the ingredients for preparing a beverage. For example, the container may further comprise a filter cup comprising a brew substance, non-limiting examples of which include coffee grinds, ground tea leaves, chocolate, flavored, powders, and the like. The brew substance also may include a combination of dry milk, sugar or sugar substitute, or other flavorings to enhance the quality of the resulting beverage.
[0031] The containers embodied herein are particularly suited for use in an automatic machine, such as a coffee brewing machine. Upon placing the container in the machine, a piercing member punctures the cover to introduce pressurized hot water through the hole where it comes into contact with the beverage ingredients disposed in the filter. A second piercing member punctures the base of the container at any position in the puncture region to enable the prepared beverage to flow out of the container and be dispensed into a cup or container for consumption by the consumer.
[0032] The foregoing embodiments can be further understood and illustrated by the following non-limiting examples.
Examples
Example 1
[0033] 1.9 ounce containers were prepared, from mono-layer sheets and compared to a commercially available K-Cup® to evaluate the effect of the different polymer
formulations on the punctureability of an exemplary container. Polypropylene base resins included recycled PP, a homopolymer polypropylene ("Homopolymer PP 1 "), and a medium impact polystyrene were used either alone or in combination with the additives white pigmented PS, CaCO3 masterbatch 1 or CaCO3 masterbatch 2, and PolyOne® proprietary masterbatch. The polymer formulations and results are provided in the following tables.
[0034] The polystyrene-based K-Cup used as a control had the lowest "vacuum strength" of the containers tested, had a moderate top-load, the lowest side-load, and the lowest
puncture load. Neither the neat polypropylene (Cup 4) nor the polypropylene with a 3% loading of CaCO3 masterbatch 1 (Cup 6) were capable of being punctured. However, it was observed that the use of the recycled PP seemed to promote the punctureability of die container as did the additives CaCO3 masterbatch 2 and White pigmented PS.
Example 2
[0035] 1,9 ounce containers were prepared from mono-layer sheets using various combinations of polypropylene and additives and compared to a commercially available K-Cup® to evaluate the effect of the polymer materials on the puoctureability of an exemplary container. Polypropylene base resins included Homopolymer PP 1 , High Stiffness Homopolymer PP 1 , High Stiffness Homopolymer 2, High Stiffness
liomoporynier PP 3, and Homopolymer PP 2, and were used either alone or in
combination with the additives White Pigmented PS Nucleating Agent 1 , Nucleating Agent 2, Stearate Masterbatch 1 or Stearate Masterbatch 2. The polymer formulations and results are provided in the following tables.
[0036] It should be apparent that the foregoing relates only to certain embodiments of the present application and the resuitant patent. Numerous changes and modifications may be made herein by one of ordinary skill in the art without departing from the general spirit and scope of the in vention as defined by the following claims and the equivalents thereof.
Claims
1. A container comprising :
a substantially circular base;
a frustoconically shaped wall extending therefrom and defining a cavity therein; and a stacking shoulder which intersects and extends laterally from the wall;
wherein the base comprises an outer annular peripheral support structure and optionally an inner annular support structure with a continuous puncture region there between, the outer annular peripheral support structure comprising a plurality of recesses therem; wherein the continuous puncture region is sized and shaped to permit a pimcture therein without interference and without substantial deformation of the container.
2. The container of claim 1, wherein the container comprises a thermoplastic polymer selected from the group consisting of polypropylene, polystyrene, nylon, polyethylene, and combinations thereof.
3. The container of claim 1 or 2, wherein the thermoplastic polymer is blended with one or more additives to form a thermoplastic material.
4. The container of claim 3, wherein the one or more additives are present in the thermoplastic material in an amount from about 2 to about 15% by weight of the thermoplastic material.
5. The container of claim 3, wherein the one or more additives comprise a nucleating agent.
6. The container of claim 3, wherein the one or more additives are selected from the group consisting of calcium carbonate, talc, clays, and combinations thereof.
7. The container of claim 3, wherein the one or more additives comprise metallic stearates.
8, The container of claim 7, wherein the one or more metallic steatates are selected from the group consisting of calcium stearate, magnesium stearate, zinc stearate, and combinations thereof.
9, The container of claim 3, wherein the one or more additi ves comprise a nucleating agent in an amount from about 0.5 to about 5.0% by weight of the thermoplastic material, and a second additive in an amount from about 7.0 to about 25.0% by weight of the thermoplastic material.
10, The container of claim 9, wherein the thermoplastic polymer is a polyolefin, the nucleating agent is present, in an amount from about 0.5 to about 5.0% by weight of the thermoplastic material, and the second additive is present in art amount from about 7.0 to about 1.8.0% by weight of the thermoplastic material.
1 1 , The container of claim 9, wherein the thermoplastic polymer is a polyolefin, the nucleating agent is present in an amount from about 0,5 to about 2,5% by weight of the thermoplastic material, and the second additive is present in an amount from about 7.0 to about 1.2.0% by weight of the thermoplastic material,
1.2. The container of any one of claims 9 to 1 1 wherein the second additi ve is selected from the group consisting of calcium carbonate, talc, clays, and combinations thereof.
13. The container of claim 1, wherein the outer annular peripheral support structure comprises a first outer annular structure and a second outer annular structure positioned inside the first outer annular structure., a first portion of the plurality of recesses being disposed in the first outer annular structure and a second portion of the second outer annular structure.
1.4. The container of claim 13, wherein the first portion of the plurality of recesses of the first outer annular structure and second portion of the plurality of recesses of the second outer annular structure are offset.
15. The container of claim 1, wherein the container is characterized by a container height (h) from the base to the stacking shoulder, a stacking shoulder radius (R1) defined by an inner radius of the container measured at the stacking shoulder, a base radius (R) defined by a an outer radius of a base including the outer annular peripheral support structure, and an approach angle (Φ), having a mathematical relationship:
h = (R1-R) · tan (90-Φ).
16. The container of claim 15, wherein R1 > R, R1 is from about 11.0 mm to about 55.0 mm, and R is from about 10.0 mm to about 50.0 mm.
17. The container of claim 1, wherein the container is characterized by a radius (R) of the base including the outer annular peripheral support structure, a radius (r) of the base excluding the outer annular peripheral support structure, an inner radius (n) of the inner annular support structure, an outer radius (r2) of the inner annular support structure, a width (wο) of the outer annular peripheral support structure, a width (d) of the continuous puncture region, a width (wi) of the inner annular support structure, and height (t) of the outer annular peripheral support structure, having a mathematical relationship:
Wo = R - r
Wi = r2 - r1
d = ½ . t = r - r2
18. The container of claim 17, wherein r2 > r1, r1 is from about 0.0 to about 39.0 mm, and r2, is from about 0.0 to about 40.0 mm.
19. The container of claim 17, wherein R is from about 10.0 mm to about 50.0 mm and r is from about 9.0 mm to about 49.0 mm.
20. The container of claim 1, wherein the outer annular peripheral support structure is characterized by a feature angle (θο), a recess angle (θ1), and a number of recesses (n) related by a mathematical relationship:
θο = (360 ÷ n) - θ1
0 < θ1 < θο
21, The container of claim 20, wherein n is from about 1 to about 50.
22. The container of claim 1 , further comprising a feature imprinted on an inner surface of the base, wherein the feature functions to increase the punctureability of the base.
23. The container of claim 1. wherein the container has improved punctureability as characterized by a puncture load of less than 6.0 kg.
24. The container of claim 1, wherein the container has improved punctureabiiity as characterized by a puncture load of about 2,5 kg to about 5.0 kg.
25. The container of claim 1 , wherein the container is recycleahle.
26. A container for forming a beverage comprising the container of claim 1 , 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; and
a lid attached to a rim of the container to contain the beverage medium and filter disposed therein.
27. The container of claim 26, wherein the beverage medium comprises coffee grinds, ground tea leaves., chocolate., flavored powder, and combinations thereof.
28. A method of preparing a beverage comprising:
providing the container for forming a beverage of claim 26; piercing the lid of the container to permit pressurized hot water to be introduced into the cavity of the container and in contact with the beverage medium to form a beverage; and piercing the base of the container in the continuous puncture region to permit the be verage to flow out of the base of the container.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13789136.2A EP2911952A1 (en) | 2012-10-26 | 2013-10-28 | Container with improved puncture design |
CN201380064227.6A CN104837745A (en) | 2012-10-26 | 2013-10-28 | Container with improved puncture design |
HK16102429.9A HK1214228A1 (en) | 2012-10-26 | 2016-03-02 | Container with improved puncture design |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261719136P | 2012-10-26 | 2012-10-26 | |
US61/719,136 | 2012-10-26 | ||
US14/034,307 | 2013-09-23 | ||
US14/034,307 US20140120217A1 (en) | 2012-10-26 | 2013-09-23 | Container With Improved Puncture Design |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014066901A1 true WO2014066901A1 (en) | 2014-05-01 |
Family
ID=49553878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2013/067110 WO2014066901A1 (en) | 2012-10-26 | 2013-10-28 | Container with improved puncture design |
Country Status (5)
Country | Link |
---|---|
US (1) | US20140120217A1 (en) |
EP (1) | EP2911952A1 (en) |
CN (1) | CN104837745A (en) |
HK (1) | HK1214228A1 (en) |
WO (1) | WO2014066901A1 (en) |
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WO2015191565A1 (en) * | 2014-06-10 | 2015-12-17 | Printpack Illinois, Inc. | Containers with improved punctureability |
DE102014109555A1 (en) * | 2014-07-08 | 2016-01-14 | Tchibo Gmbh | portion capsule |
WO2016054213A1 (en) * | 2014-10-01 | 2016-04-07 | Kraft Foods Group Brands Llc | Coffee pod |
DE102018008119A1 (en) * | 2017-10-27 | 2019-05-02 | Kiefel Packaging B.V. | OF A FILM OF THERMOFORMED TANKS, USE OF A METHOD FOR THERMOFORMS OF A FILM, USE OF A TOOLING TOOL |
US11524268B2 (en) | 2016-11-09 | 2022-12-13 | Pepsico, Inc. | Carbonated beverage makers, methods, and systems |
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US11832755B2 (en) * | 2007-07-13 | 2023-12-05 | Adrian Rivera | Brewing material container for a beverage brewer |
US10722066B2 (en) * | 2010-12-04 | 2020-07-28 | Adrian Rivera | Windowed single serving brewing material holder |
RU2581002C2 (en) * | 2010-07-22 | 2016-04-10 | К-Фее Зюстем Гмбх | Portioned capsule with identifier |
USD756785S1 (en) * | 2013-07-10 | 2016-05-24 | Sarong Societa' Per Azioni | Capsule |
USD761108S1 (en) * | 2013-08-15 | 2016-07-12 | 2266170 Ontario Inc. | Capsule |
US9307860B2 (en) | 2014-02-14 | 2016-04-12 | Remington Designs, Llc | Processor control of solute extraction system |
USD753491S1 (en) * | 2014-03-21 | 2016-04-12 | 2266170 Ontario Inc. | Capsule |
USD770286S1 (en) * | 2014-03-21 | 2016-11-01 | 2266170 Ontario Inc. | Capsule |
USD769726S1 (en) * | 2014-03-21 | 2016-10-25 | 2266170 Ontario Inc. | Capsule with logo |
USD736615S1 (en) * | 2014-12-03 | 2015-08-18 | Printpack Illinois, Inc. | Container with spout |
USD757537S1 (en) | 2014-12-11 | 2016-05-31 | 2266170 Ontario Inc. | Capsule |
ITTO20150032U1 (en) | 2015-03-02 | 2016-09-02 | Lavazza Luigi Spa | CARTRIDGE FOR THE PREPARATION OF LIQUID PRODUCTS |
USD778157S1 (en) | 2015-04-13 | 2017-02-07 | 2266170 Ontario Inc. | Capsule |
US10486896B2 (en) | 2015-08-11 | 2019-11-26 | Pneutools, Inc. | Container for preparation of a beverage and machine for automated filling of the container |
USD788577S1 (en) * | 2016-06-29 | 2017-06-06 | Swiss Coffee Company Ag | Coffee capsule |
USD854926S1 (en) | 2017-09-15 | 2019-07-30 | Silgan Plastic Food Containers Corporation | Plastic container |
USD927264S1 (en) * | 2017-11-16 | 2021-08-10 | Ascendo Medienagentur Ag | Capsule |
CA3091709C (en) * | 2018-04-23 | 2021-05-25 | 2266170 Ontario Inc. | Capsules and other containers with optimized recycling attributes and methods for making same |
US11052358B2 (en) * | 2018-08-21 | 2021-07-06 | Vejo Ip Ag | Beverage pod |
US11649098B1 (en) | 2019-10-02 | 2023-05-16 | Printpack Illinois, Inc. | Food storage containers formed at least partially from post-consumer recycled polymeric material |
US11805934B1 (en) * | 2020-10-21 | 2023-11-07 | Adrian Rivera | Brewing material lid and container for a beverage brewer |
USD981844S1 (en) | 2020-11-25 | 2023-03-28 | Berry Global, Inc. | Beverage capsule cup |
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- 2013-10-28 CN CN201380064227.6A patent/CN104837745A/en active Pending
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WO2015191565A1 (en) * | 2014-06-10 | 2015-12-17 | Printpack Illinois, Inc. | Containers with improved punctureability |
US10336498B2 (en) | 2014-06-10 | 2019-07-02 | Printpack Illinois, Inc. | Container with improved punctureability |
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DE102018008119A1 (en) * | 2017-10-27 | 2019-05-02 | Kiefel Packaging B.V. | OF A FILM OF THERMOFORMED TANKS, USE OF A METHOD FOR THERMOFORMS OF A FILM, USE OF A TOOLING TOOL |
DE102018008119B4 (en) | 2017-10-27 | 2019-06-06 | Kiefel Packaging B.V. | OF A FILM OF THERMOFORMED TANKS, USE OF A METHOD FOR THERMOFORMS OF A FILM, USE OF A TOOLING TOOL |
Also Published As
Publication number | Publication date |
---|---|
US20140120217A1 (en) | 2014-05-01 |
EP2911952A1 (en) | 2015-09-02 |
HK1214228A1 (en) | 2016-07-22 |
CN104837745A (en) | 2015-08-12 |
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