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EP1595802A2 - Hochsperrende mehrschichtige Folie für einen Verbundbehälter mit Bördelrand - Google Patents

Hochsperrende mehrschichtige Folie für einen Verbundbehälter mit Bördelrand Download PDF

Info

Publication number
EP1595802A2
EP1595802A2 EP05252817A EP05252817A EP1595802A2 EP 1595802 A2 EP1595802 A2 EP 1595802A2 EP 05252817 A EP05252817 A EP 05252817A EP 05252817 A EP05252817 A EP 05252817A EP 1595802 A2 EP1595802 A2 EP 1595802A2
Authority
EP
European Patent Office
Prior art keywords
metallized film
composite container
container according
metallized
sealant layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05252817A
Other languages
English (en)
French (fr)
Inventor
Srinivas Nomula
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sonoco Development Inc
Original Assignee
Sonoco Development Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sonoco Development Inc filed Critical Sonoco Development Inc
Publication of EP1595802A2 publication Critical patent/EP1595802A2/de
Withdrawn legal-status Critical Current

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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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/22—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines with double walls; with walls incorporating air-chambers; with walls made of laminated material
    • 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
    • B65D15/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials
    • B65D15/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of curved, or partially curved, cross-section, e.g. cans, drums
    • B65D15/04—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of curved, or partially curved, cross-section, e.g. cans, drums with curved, or partially curved, walls made by winding or bending paper
    • B65D15/08—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, sections made of different materials of curved, or partially curved, cross-section, e.g. cans, drums with curved, or partially curved, walls made by winding or bending paper with end walls made of plastics material
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
    • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing

Definitions

  • tubular containers Food and drink products and other perishable items are often packaged in tubular containers, which are sealed at both ends.
  • tubular containers typically include at least one structural body ply an impervious liner ply, and are formed by wrapping continuous strips of body and liner ply material around a mandrel of a desired shape to create a tubular structure.
  • the plies may be spirally wound around the mandrel or passed through a series of forming elements so as to be wrapped in a convolute shape around the mandrel.
  • the tube is cut into discrete lengths and is then fitted with end closures to form the container.
  • tubular containers of this type typically include a liner ply on the inner surface of the paperboard body ply.
  • the liner ply prevents liquids, such as juice, from leaking out of the container and also prevents liquids from entering the container and possibly contaminating the food product contained therein.
  • the liner ply is also resistant to the passage of gases, such as oxygen, water vapor, and nitrogen, so as to prevent odors of the food product in the container from escaping and to prevent atmospheric air from entering the container and spoiling the food product.
  • gases such as oxygen, water vapor, and nitrogen
  • Conventional composite containers having high-barrier liners have employed foil-based liners.
  • Foil is laminated to a paper or film layer on one side, and a sealant layer is laminated to or extrusion-coated onto the other side of the foil.
  • the sealant layer forms the inside surface of the container such that it is the exposed surface of the bead.
  • a membrane lid is heat sealed to the sealant layer on the liner.
  • sealant layers include Surlyn® polymer (E.I. du Pont de Nemours and Company), high-density polyethylene (HDPE), Surlyn®-HDPE coextrusion, or low-density polyethylene (LDPE)-HDPE coextrusion.
  • sealant and sealant layer can seal to each other to form a lap seal between opposite edge portions of the liner ply so the liner forms a continuous barrier along the inner surface of the container.
  • sealants include LDPE, ethylene-methyl acrylate (EMA), or a blend or coextrusion of the two.
  • Foil-based liners are relatively expensive. Moreover, a liner comprising foil supported by a paper layer (e.g., kraft) has substantial thickness, and when the necessary fold seal is used to seal adjacent edges of the liner strip together (i.e., "anaconda" seal), this can create problems in forming a hermetic seal between a container end and a membrane lid. For these and other reasons, consideration has been given to making liners based on alternative barrier materials such as metallized film. However, liners based on metallized films have yet to attain acceptable barrier performance required for some high-barrier applications. In addition, barrier properties of metallized films have been susceptible to deterioration under high temperature and high humidity conditions. Thus, a high-barrier liner is sought that would advantageously solve these problems with current liners.
  • a paper layer e.g., kraft
  • the present invention addresses the above needs and provides other advantages, by providing a container having a high barrier liner that comprises a metallized film oriented with the metal layer facing inwards towards the interior of the container.
  • a container having a high barrier liner that comprises a metallized film oriented with the metal layer facing inwards towards the interior of the container.
  • the directional orientation of the metal layer has an effect on barrier performance.
  • the inward-facing orientation is superior to an outward-facing orientation in terms of barrier performance, and also is less susceptible to deterioration in high-temperature, high humidity conditions.
  • a composite container for products comprises a tubular body member comprising at least one paperboard body ply having an inner surface.
  • the composite container further comprises a liner ply adhered to the inner surface of the tubular body member.
  • the liner ply comprises a metallized film disposed between inner and outer sealant layers.
  • the metallized film comprises a polymer film substrate and a vapor-deposited metal layer on one surface of the substrate.
  • the metallized film is advantageously oriented such that the metal layer of the metallized film faces radially inwardly towards an interior of the composite container.
  • metallized layer including but not limited to metallized polyethylene, metallized polypropylene, or metallized polyester such as metallized polyethylene terephthalate.
  • Each of the inner and outer sealant layers preferably comprises at least one of polypropylene, ionomer resin, high density polyethylene, low density polyethylene, linear low-density polyethylene, metallocene catalyzed polyolefins, ethylene-methyl acrylate, and copolymers, coextrusions, and blends thereof.
  • the inner layer can also comprise ethylene acid copolymer having acid groups partially neutralized by zinc or sodium ions.
  • the inner and outer sealant layers and metallized film can be configured and attached using various techniques.
  • the inner sealant layer can be attached to the metal layer of the metallized film, and the outer sealant layer attached to both an opposite surface of the metallized film and the inner surface of the paperboard body ply.
  • the metallized film can be adhesive or extrusion laminated to the inner sealant layer.
  • the inner sealant layer can be extrusion coated on the metallized film.
  • the outer sealant layer can be extrusion coated on the metallized film, or integral with the metallized film in additional embodiments of the present invention.
  • the composite container can optionally include further features.
  • the liner ply can further comprise a protective coating applied over the metal layer of the metallized film, with the protective coating disposed between the metallized film and the inner sealant layer.
  • the metallized film can further comprise an adhesion-promoting material applied between the polymer film substrate and the metal layer to promote adhesion of the metal layer to the substrate.
  • a top end of the tubular body member can be rolled outwardly to form a rim on which the liner ply is exposed, and a lid heat sealed to the rim.
  • FIGS. 1-3 depict a container 10 in accordance with one embodiment of the invention.
  • the container 10 includes a tubular container body 11 that may be formed by various methods and may have various constructions.
  • the container body 11 can be made by winding at least one structural body ply 12 about a forming mandrel (not shown) and either adhering overlapping edges of a single body ply to each other to form a tubular structure, or, in the case of multiple body plies, winding the plies one upon another and adhering opposing faces of the plies to one another to form a tubular structure.
  • the container 10 may have any cross-sectional shape that can be formed by wrapping the container about an appropriately shaped mandrel.
  • the body ply or plies 12 can be wound either spirally or convolutely.
  • the body ply or plies 12 advantageously comprise paperboard.
  • the container body 11 may also include an outer label ply 16 wrapped about an exterior surface of the outermost body ply 12 and adhered thereto.
  • the label ply 16 may comprise, for example, a thin non-structural ply of paper or polymer film, and may include graphics and/or indicia printed or otherwise provided on its exterior surface.
  • the container body 11 also includes a liner ply 14 adhered against an inwardly facing surface of the innermost body ply 12.
  • the liner ply 14 is provided for forming a barrier substantially impervious to moisture and/or gases such as oxygen.
  • WVTR water vapor transmission rate
  • OTR oxygen transmission rate
  • the material(s) that are suitable for the liner ply 14 may vary.
  • the liner ply 14 includes an inner sealant layer 20, an outer sealant layer 22, a metallized film 24, and an adhesive layer 26.
  • the metallized film 24 is resistant to the passage of liquids and gasses such as oxygen and includes a metal layer 28 vapor deposited onto a polymer substrate 30.
  • the metal layer 28 is typically vapor deposited on the polymer substrate 30 in a vacuum chamber.
  • preferred metallized films 24 are metallized polyethylene, metallized polypropylene, or metallized polyester such as metallized polyethylene terephthalate, although it is understood that various materials could be employed with the metallized film of the present invention. It is possible to have more than one metal layer 28 oriented in a metal-in configuration in instances where increased barrier properties are desired.
  • the inner sealant layer 20 is the radially innermost layer of the liner ply 14, and is attached to the metal layer 28 of the metallized film 24.
  • the outer sealant layer 22 is attached to the body ply 12 with the adhesive 26 and is also attached to the polymer substrate 30 of the metallized film 24.
  • the inner 20 and outer 22 sealant layers could be polypropylene, ionomer resin (e.g., Suryln®), high density polyethylene, low density polyethylene, linear low-density polyethylene, metallocene catalyzed polyolefins, or ethylene-methyl acrylate, or copolymers, coextrusions, and blends thereof.
  • the inner 20 and outer 22 sealant layers could be any suitable material capable of being used with a liner ply 14, as known to those skilled in the art.
  • the adhesive 26 could be any suitable adhesive capable of bonding the body ply 12 to the outer sealant layer 22, such as a water-based wet adhesive.
  • the inner 20 and outer 22 sealant layers are generally formed of materials that allow the liner to form a lap seal, although it is understood that the liner could be sealed by a fold seal in alternative embodiments.
  • the metal layer 28 is oriented such that the metal layer faces towards the interior of the container 10 (referred to as "metal-in").
  • the metal-in orientation has shown improved barrier performance and slower deterioration of the barrier in high-temperature, high-humidity conditions, relative to a metal-out orientation. Testing has indicated that the WVTR can be lower in the metal-in orientation than in a metal-out orientation over the same testing period.
  • the unsupported liner ply 14 according to the present invention is significantly thinner than conventional supported liners and thus the liner seal (i.e., fold or lap seal) is substantially thinner than an anaconda fold seal of a conventional supported liner. Accordingly, much smaller discontinuities are presented at the point where the seam crosses the bead.
  • the membrane closure 32 can be cheaply and easily sealed to the bead 19 with a minimum amount of sealant 36, and the fit and removability of the overcap can be improved.
  • the inner 20 and outer 22 sealant layers and metallized film 24 can be attached using various techniques, as known to those skilled in the art.
  • the metallized film 24 is adhesive or extrusion laminated to the inner sealant layer 20.
  • the inner sealant layer 20 can be extrusion coated on the metallized film 24.
  • the outer sealant layer 22 can be extrusion coated on the metallized film 24, or integral with the metallized film in additional embodiments of the present invention.
  • the liner ply 14 can further comprise a protective coating 31 applied over the metal layer 28 of the metallized film 24, with the protective coating disposed between the metallized film and the inner sealant layer 20.
  • the metallized film 24 can comprise an adhesion-promoting material 33 applied between the polymer substrate 30 and the metal layer 28 to promote adhesion of the metal layer to the substrate during metallization.
  • a primer or tie layer 31 as known to those skilled in the art, could be employed to promote adhesion between the metallized layer 24 and the inner or outer sealant layers.
  • the container 10 can also include a rolled bead 19 at a top end of the container body 11, formed by rolling the top edge of the wall of the container body 11 radially outwardly and then downwardly toward a lower end of the container body.
  • the bead 19 can be formed by providing a die of suitable configuration and forcing the top end of the container body axially against the die to roll an upper portion of the body outwardly and then downwardly.
  • the bead 19 is provided in part so that a removable and replaceable overcap 18 can be snap-fit onto the top end of the container 10 in engagement with the bead.
  • the overcap 18 provides a way to re-close the container 10 after it has initially been opened.
  • the primary or original sealing of the top end of the container 10, however, can be provided by a flexible membrane closure 32 that is bonded to the end surface of the bead 19 after the container is filled.
  • the membrane closure 32 can be of various constructions, but generally includes at least a moisture and/or gas barrier layer 35 and can include one or more further layers if desired, such as a paperboard layer 34.
  • the membrane closure includes on its under surface a sealant 36 that is heat-sealable to the inner sealant layer 20 of the liner.
  • the overcap 18 is then placed over the membrane and engaged with the bead 19.
  • the overcap 18 is removed and then the membrane closure 32 is peeled off the bead 19 as depicted in FIG. 1.
  • the container is re-closed by replacing the overcap 18.
  • the container 10 could be manufacturing using a variety of techniques, as known to those skilled in the art.
  • U.S. Patent No. 6,350,500 which is incorporated herein by reference, utilizes a continuous strip of paperboard body ply that is first advanced toward a shaping mandrel.
  • the body ply As the paperboard body ply material is advanced toward the shaping mandrel, the body ply is advanced through an adhesive applicator that applies an adhesive to the inner surface of the body ply.
  • A. continuous liner ply is also advanced onto the shaping mandrel such that the liner ply is adhered to the body ply.
  • a continuous label ply may be adhered to the outer surface of the body ply and the container cut into discrete lengths at a cutting station.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
EP05252817A 2004-05-12 2005-05-07 Hochsperrende mehrschichtige Folie für einen Verbundbehälter mit Bördelrand Withdrawn EP1595802A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US843970 2004-05-12
US10/843,970 US20050252952A1 (en) 2004-05-12 2004-05-12 High-barrier liner for beaded composite can

Publications (1)

Publication Number Publication Date
EP1595802A2 true EP1595802A2 (de) 2005-11-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05252817A Withdrawn EP1595802A2 (de) 2004-05-12 2005-05-07 Hochsperrende mehrschichtige Folie für einen Verbundbehälter mit Bördelrand

Country Status (3)

Country Link
US (1) US20050252952A1 (de)
EP (1) EP1595802A2 (de)
JP (1) JP2005330009A (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007058717A1 (en) * 2005-11-16 2007-05-24 Bristol-Myers Squibb Company High-barrier packaging material
EP1892264A1 (de) * 2006-08-25 2008-02-27 Borealis Technology Oy Extrusionsbeschichtetes Substrat
US7914899B2 (en) 2006-07-10 2011-03-29 Borealis Technology Oy Electrical insulation film
US8378047B2 (en) 2006-07-10 2013-02-19 Borealis Technology Oy Biaxially oriented polypropylene film
WO2013056206A1 (en) * 2011-10-14 2013-04-18 Kellogg Company Composite containers for storing perishable products
US8642101B2 (en) 2006-07-28 2014-02-04 Stora Enso Oyj Polymer-coated liquid packaging board, a package formed from it and the use of the polymer
AU2012323913A1 (en) * 2011-10-14 2014-05-29 Kellanova Composite containers for storing perishable products
CN104125918A (zh) * 2011-10-14 2014-10-29 家乐氏公司 用于存储易腐烂产品的复合容器
WO2022047113A1 (en) * 2020-08-27 2022-03-03 Sonoco Development, Inc. Container assemblies with paper-based end closures
US12162644B2 (en) 2020-08-27 2024-12-10 Sonoco Development, Inc. Systems and methods for the application and sealing of end closures on containers
US12240642B2 (en) 2020-08-27 2025-03-04 Sonoco Development, Inc. Systems and methods for the application and sealing of end closures on containers

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050255262A1 (en) * 2004-05-11 2005-11-17 Sonoco Development, Inc. Composite container having an electromagnetic surveillance device
DE102005010639A1 (de) * 2005-03-08 2006-09-14 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Verpackungsbehälter, insbesondere dosenartiger Behälter
US7404485B2 (en) * 2006-05-24 2008-07-29 David Uitenbroek Paper roll wrap, wrapped paper roll, and method for wrapping a paper roll
WO2008067477A1 (en) * 2006-11-29 2008-06-05 Wausau Paper Specialty Procucts, Llc Non-slip masking product, and methods
US20080148688A1 (en) * 2006-12-22 2008-06-26 David Uitenbroek Wetness indicating roll wrap system, and methods
EP2877404A4 (de) * 2012-07-25 2016-01-13 Greater Good Inc Flüssigkeitsbehälter
US9302832B2 (en) 2013-05-29 2016-04-05 Greater Good, Inc. Compostable container with elongate connector
MX2018001090A (es) 2015-07-31 2018-05-23 Graphic Packaging Int Llc Recipiente reforzado.
SE539899C2 (en) 2016-04-15 2018-01-02 A & R Carton Lund Ab Paperboard packaging container with a lid and a method for producing such a container
SE543099C2 (en) 2018-05-23 2020-10-06 A & R Carton Lund Ab Flexible membrane with valve
SE542898C2 (en) 2018-08-31 2020-08-18 Å&R Carton Lund Ab A composite container with separable top, a body blank, and a method of separating a top end portion from a main body of the container
SE544358C2 (en) 2019-07-02 2022-04-19 A & R Carton Lund Ab Method of producing a packaging container and a packaging container
US11299334B2 (en) * 2019-09-05 2022-04-12 Sonoco Development, Inc. Membrane lid with integrated two-stage tab system
SE544445C2 (en) 2019-12-12 2022-05-31 Ar Packaging Systems Ab Method of producing a packaging container, a packaging container and a curling tool
CN116137854B (zh) * 2020-06-09 2024-12-06 埃勒里·韦斯特 耐氧罐
SE546556C2 (en) 2022-05-25 2024-12-03 Gpi Systems Ab Method of producing packaging container comprising a valve

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457977A (en) * 1981-09-30 1984-07-03 The Dow Chemical Company Metallized plastic articles
US4760949A (en) * 1986-10-06 1988-08-02 Sonoco Products Company Composite container with high barrier liner layer and method of forming the same
ATE218398T1 (de) * 1993-10-04 2002-06-15 3M Innovative Properties Co Verfahren zur herstellung einer acrylatbeschichtung
DK172837B1 (da) * 1996-04-12 1999-08-09 Danisco Flerlags emballagemateriale, især til fleksible emballager
US6264098B1 (en) * 1997-02-06 2001-07-24 Sonoco Development, Inc. Tubular container with a heat seal having non-symmetrical inner and outer beads
US6270004B1 (en) * 1999-08-30 2001-08-07 Sonoco Development, Inc. Tubular composite containers having unsupported film liners and methods and apparatus for making same
US6350500B1 (en) * 1999-08-30 2002-02-26 Sonoco Development, Inc. Tubular composite containers having folded unsupported film liners
US6302321B1 (en) * 1999-10-11 2001-10-16 Sonoco Development, Inc. Sealant layer for container lid
US6503635B1 (en) * 1999-11-08 2003-01-07 Exxon Mobil Oil Corporation Metallized multi-layer film
US6857561B2 (en) * 2003-05-12 2005-02-22 Sonoco Development, Inc. Composite container with membrane and bead closure system

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007058717A1 (en) * 2005-11-16 2007-05-24 Bristol-Myers Squibb Company High-barrier packaging material
US7914899B2 (en) 2006-07-10 2011-03-29 Borealis Technology Oy Electrical insulation film
US8378047B2 (en) 2006-07-10 2013-02-19 Borealis Technology Oy Biaxially oriented polypropylene film
US8642101B2 (en) 2006-07-28 2014-02-04 Stora Enso Oyj Polymer-coated liquid packaging board, a package formed from it and the use of the polymer
EA018273B1 (ru) * 2006-08-25 2013-06-28 Бореалис Текнолоджи Ой Изделие, включающее подложку с нанесенным экструзионным способом покрытием, способ получения изделия и применение изделия
US8142902B2 (en) 2006-08-25 2012-03-27 Borealis Technology Oy Extrusion coated substrate
EP1967547A1 (de) * 2006-08-25 2008-09-10 Borealis Technology OY Extrusionsbeschichtetes Substrat
WO2008022803A3 (en) * 2006-08-25 2008-04-17 Borealis Tech Oy Extrusion coated substrate
EP1892264A1 (de) * 2006-08-25 2008-02-27 Borealis Technology Oy Extrusionsbeschichtetes Substrat
WO2013056206A1 (en) * 2011-10-14 2013-04-18 Kellogg Company Composite containers for storing perishable products
AU2012323913A1 (en) * 2011-10-14 2014-05-29 Kellanova Composite containers for storing perishable products
CN104125918A (zh) * 2011-10-14 2014-10-29 家乐氏公司 用于存储易腐烂产品的复合容器
CN104125918B (zh) * 2011-10-14 2017-03-01 家乐氏公司 用于存储易腐烂产品的复合容器
WO2022047113A1 (en) * 2020-08-27 2022-03-03 Sonoco Development, Inc. Container assemblies with paper-based end closures
US12122584B2 (en) 2020-08-27 2024-10-22 Sonoco Development, Inc. Container assemblies with paper-based end closures
US12162644B2 (en) 2020-08-27 2024-12-10 Sonoco Development, Inc. Systems and methods for the application and sealing of end closures on containers
US12240642B2 (en) 2020-08-27 2025-03-04 Sonoco Development, Inc. Systems and methods for the application and sealing of end closures on containers

Also Published As

Publication number Publication date
JP2005330009A (ja) 2005-12-02
US20050252952A1 (en) 2005-11-17

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