EP1582477A1 - Behälterverschluss und Verfahren zu seiner Herstellung - Google Patents

Behälterverschluss und Verfahren zu seiner Herstellung Download PDF

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Publication number
EP1582477A1
EP1582477A1 EP04007594A EP04007594A EP1582477A1 EP 1582477 A1 EP1582477 A1 EP 1582477A1 EP 04007594 A EP04007594 A EP 04007594A EP 04007594 A EP04007594 A EP 04007594A EP 1582477 A1 EP1582477 A1 EP 1582477A1
Authority
EP
European Patent Office
Prior art keywords
film
sealing assembly
sealing
container
assembly
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Withdrawn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
EP04007594A
Other languages
English (en)
French (fr)
Inventor
Arno Hohmann
Mathias Bertl
Kerstin Janz
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.)
3M Deutschland GmbH
Original Assignee
3M Espe AG
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 3M Espe AG filed Critical 3M Espe AG
Priority to EP04007594A priority Critical patent/EP1582477A1/de
Publication of EP1582477A1 publication Critical patent/EP1582477A1/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2028—Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
    • B65D77/2044—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure
    • B65D77/2048—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut
    • B65D77/2056—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut the cover being weakened
    • B65D77/206—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut the cover being weakened so as to uncover one or more preformed openings made through some layers of the cover
    • 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
    • B65D2231/00—Means for facilitating the complete expelling of the contents
    • B65D2231/02—Precut holes or weakened zones
    • B65D2231/025—Precut holes or weakened zones for draining or discharging the liquid contents, e.g. soup, milk
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0015—Upper closure of the 41-type
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0006—Upper closure
    • B65D2251/0031—Membrane
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/0003—Two or more closures
    • B65D2251/0068—Lower closure
    • B65D2251/0093—Membrane
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2041—Pull tabs
    • B65D2577/205—Pull tabs integral with the closure

Definitions

  • the present invention relates to a sealing assembly, particularly for sealing container openings, a sealing cap assembly using such sealing assembly, a container being sealed by such sealing assembly or being closed by such a sealing cap assembly, respectively, and a method for manufacturing a sealing assembly.
  • Pulverulant or granular materials for example dental powder such as glass ionomer
  • containers such as bottles, preferably glass bottles.
  • a glass ionomer cement usually some amount of a glass ionomer powder is mixed with a liquid by hand.
  • the powder dosage used therefor is obtained or discharged from the bottle using a spoon.
  • conventional bottles contain a plastic insert at the bottle opening with a "wiping edge" to wipe excess powder off the spoon.
  • the container has a moisture-proof seal.
  • a suitable seal is achieved by using an aluminium multi-layer film that is sealed to the opening or lip, respectively, of the bottle.
  • a variety of solutions are actually available in the prior art for sealing glass bottles.
  • these conventional methods are not suitable for bottles containing such glass ionomer cements as the required plastic insert covers the lip of the bottle (at least in part), thus making it difficult to seal the aluminium foil to the top of the bottle. Sealing the film directly upon the plastic insert is also not possible because existing gaps between the insert and the bottle lip would not ensure an appropriate moisture-proof sealing.
  • the conventional assembly is disadvantageous because the separate plastic insert adds cost to the product.
  • a first object of the present invention is to provide a simple and cost-effective sealing assembly.
  • a further object of the present invention is to provide a simple and cost-effective sealing cap assembly.
  • Another object of the present invention is to provide an improved container at low costs that is relatively simple in design.
  • Another object of the present invention is to provide a method for manufacturing a sealing assembly.
  • a sealing assembly comprising at least a first film and a second film.
  • the first and second film are provided in a sandwich construction, i.e. the first film and the second film are adjacent to each other.
  • the first film (forming a "dosing film” or "dosing wiper") comprises an aperture forming a through-hole through the first film. At least a portion of the edge of the aperture forms a wiping edge. In comparison to conventional assemblies, this first film replaces the commonly used plastic insert.
  • the second film is provided to cover the first film/wiper film, and thus to form a closure film for a container being sealed with the sealing assembly according to the first aspect of the present invention.
  • the aperture provided in the first film is not a circular aperture but only a partial circular aperture that comprises a straight edge portion that forms the wiping edge.
  • the aperture is preferably provided in line with the opening of the container so that, for example, a spoon can be inserted through the aperture into the interior of the container in order to take some amount of the material contained in the container; upon taking out the spoon from the container, the wiping edge of the first film is used to wipe excess powder of the spoon.
  • the wiping edge does not have a straight edge portion but rather a zig-zag shape, sinusoidial shape or other meandering shape.
  • the second film covers the first film such that a moisture-proof sealing is achieved between the first film and the second film.
  • the closure film comprises several layers of plastic film, i.e. is of a multi-layer construction, and preferably comprises at least one metal foil, for example aluminium.
  • the first film preferably comprises several layers of plastic and/or metal films.
  • the first film and/or the second film are coated films.
  • the first and second films are laminated to form a semifinished wiper/closure element.
  • the first film comprises an adhesion area on the surface that is opposite to the second film, i.e. on the surface facing the container.
  • the adhesion area is provided with a first adhesive.
  • the first adhesive is a heat-sealable adhesive so that the first film is heat-sealable upon a container opening or lip.
  • the container is made out of plastic it is possible to directly bond the film onto it.
  • polyethylene or polypropylene is used for both parts, i.e. container and first film, sealing can easily be made without the use of an adhesive.
  • pressure sensitive glue activation of glue by just pressing two surfaces onto each other
  • first film is attached to the container instead of a heat-sealable adhesive.
  • a further method would be the usage of ultrasonics.
  • the lip of the container facing the first film preferably forms a sharp edge in order to provide homogeneous welding.
  • micro-replicated surfaces could be used since micro-replication provides very tight sealing.
  • wet glue coating glue with solvents or hot-melts
  • the film and container are free of glue. The glue is coated onto the container lip, the film or onto both parts.
  • glue types are available for this, e.g., Pioloform with a solvent, or polyurethane types (hot-melt).
  • hot-melt instead of heat sealing using hot tools in general it is envisaged to use laser, induction or ultrasonics.
  • laser, induction or ultrasonics instead of heat sealing using hot tools in general it is envisaged to use laser, induction or ultrasonics.
  • self-adhesives it is furthermore possible to use so-called "self-adhesives”.
  • the adhesion area on the first film is preferably sized and shaped such that it corresponds to the lip or opening of the container, i.e. the first adhesive is present in that area of the first film that is in direct contact with the container.
  • the adhesion between the first film and the container is stronger than the adhesion between the first and the second films, respectively, so that it is possible to peal the second film/cover film from the first film/wiper film while the wiper film remains on the container.
  • the first film is basically permanently sealed to the container and remains on the container even after the second film, i.e. the closure, is removed from the container in order to take out material from the container.
  • the second film As regards bonding of the second film to the first film, all concepts described above for adhesion between the first film and the container are applicable if the second film is not a metal film. Is furthermore preferred to use a modified plastic for the first film which provides adhesion - when heat sealed - directly to the metal surface of the second film. In this case no glue has to be used for bonding the first and second films, e.g., a Surlyn(R)TM plastic type providing those characteristics.
  • a Surlyn(R)TM plastic type providing those characteristics.
  • the sandwich structure is obtained by laminating Surlyn/tie layer (or bonding agent, respectively)/PET (high stiffness)/separation layer to PET on a plastic film/tie layer (or bonding agent, respectively)/aluminium/tie layer (or bonding agent, respectively)/PET (thin).
  • the sealing assembly according to the first aspect of the present invention provides a gas-proof and also moisture-proof sealing using cost effective and market-available components.
  • a sealing cap assembly comprises a cap, for example a screw cap and a sealing assembly according to the first aspect of the present invention.
  • the sealing assembly is provided in the interior of the cap.
  • Such a sealing cap assembly is preferably used in order to seal the wiper/closure assembly to the container.
  • an induction sealing method is used.
  • the container is first closed with the screw cap (with the sealing assembly accommodated therein).
  • electromagnetic induction is applied to the container. Due to the induced energy, the temperature of the metal part of the sealing assembly increases which causes the first film of the sealing assembly to adhere to the container.
  • the glue layer will start to melt owing to the temperature increase.
  • the screw cap provides the necessary force to ensure that the sealing assembly is completely secured and adhered to the container.
  • the second film can be removed from the first film, and material contained in the container can be dispensed.
  • the sealing cap assembly comprises an additional elastic layer, for example, a foamed plastic layer.
  • an additional elastic layer is advantageous because it provides a homogenous pressure contact between the sealing assembly and the container.
  • the elastic layer is preferably arranged between the sealing assembly and the bottom of the cap, and is connected to the second film of the sealing assembly such that the elastic member remains in the screw cap when the screw cap is unscrewed from the container. After the closure film has been removed from the container, the elastic layer operates as a seal when the screw cap is again screwed onto the container.
  • the elastic layer is connected to the second film by a tie layer. This alternative is advantageous because all layers can then be manufactured in a single in-line process.
  • This tie layer would provide just a marginal adhesion in order to allow handling during manufacturing. Thus, after assembly into the screw cap the elastic layer would easily separate from the other films. To facilitate separation and to fix the elastic layer in the cap, the elastic layer could additionally be coated with sticky glue on the side facing the inner surface of the cap.
  • the elastic layer is preferably mechanically held in the cap.
  • the elastic layer has a larger diameter relative to the first and second film, and is, for example, clamped into the cap.
  • an improved container comprises an opening that is sealed with a sealing assembly according to the first aspect of the present invention, or is closed by a sealing cap assembly according to the second aspect of the present invention.
  • the container is a bottle, and more preferably a glass bottle.
  • the fourth aspect of the present invention is related to the manufacturing process for manufacturing a sealing assembly according to the present invention.
  • the manufacturing of the sealing assembly is done in an "endless” or “reel-to-reel” process as is standard in the film manufacturing industry.
  • the manufacturing of a sealing assembly comprising a first layer, a second layer, and an additional elastic layer is preferably as follows.
  • the first film is coated with an adhesion layer, i.e., the first adhesive for providing adhesion between the first film and the container.
  • an adhesion layer i.e., the first adhesive for providing adhesion between the first film and the container.
  • the adhesion layer is preferably a co-extruded layer out of two SurlynTM materials, one designed for optimum adhesion to PET and the other designed for optimum adhesion to glass, both SurlynTM types compatible to be co-extruded so as to form a strong adhesion to each other.
  • SurlynTM types which provide optimum adhesion to glass and PET which are preferred to coextrusion of two materials. In this case, extrusion of one material only would be sufficient.
  • the first and second films are laminated together.
  • the second film (closure film) comprises an aluminium foil.
  • the aluminium foil is coated via extrusion with a tie layer preferably comprising SurlynTM.
  • the tie layer provides a temporary adhesion between the first and second films. Therefore, it is preferred to coat the aluminium foil with a SurlynTM material which provides permanent adhesion to the aluminium foil (second film) but temporary adhesion only to the PET film (first film).
  • the PET film (first film) is laminated onto the still warm coat of the aluminium foil (second film).
  • lamination is done shortly after the aluminium foil (second film) has been coated but while it is still, for example, on the chill roll in order to allow the coat to cool down to a temperature that prevents the aperture, already present in PET film (first film), from being closed by the coating material.
  • the temperature has to be sufficient to achieve sufficient bond strength between the two films.
  • an elastic film is laminated to the film assembly formed by the first and second film. Therefore, the elastic layer is preferably coated by a material providing a relatively low level of adhesion, e.g. a wax, between the film assembly and the elastic layer.
  • a material providing a relatively low level of adhesion e.g. a wax
  • this material e.g. the wax
  • the film assembly is laminated to the still hot coat shortly after the coating step.
  • the final film assembly comprising a first film, a second film, and an additional elastic film is preferably punched in two steps.
  • the elastic layer is punched with a first cutting tool. Penetration of the first cutting tool is limited so as to not punch through the whole film assembly but only through the elastic film.
  • the cutting edge of the first cutting tool is such that the elastic layer punched out has a desired size or diameter.
  • the other layers are punched from the opposite side with a second cutting tool. The depth of the cut is limited to end up close to or within the elastic layer.
  • a kit comprising a container, a sealing assembly according to the first aspect of the present invention or a sealing cap assembly according to the second aspect of the present invention.
  • the sealing assembly 1 shown in Fig. 1 comprises a wiper film 2 and a closure film 3.
  • the wiper 2 comprises an aperture 4 forming a through-hole through the wiper film.
  • the aperture is not a circular aperture, but comprises a straight edge 6 in addition to the partial-circular edge 5.
  • Edge 6 functions as a wiping edge.
  • Alternative shapes of the wiping edge are shown in Figs. 2a and 2b.
  • Fig. 2a shows a zig-zag shape of the wiping edge
  • Fig. 2b shows a meandering wiping edge.
  • the closure film 3 is located adjacent to the wiper film 2 so that the closure film fully covers the aperture 4 provided in the wiper film 2.
  • the wiper 2 is attached to the lip of the bottle 10 by means of a seal 7.
  • the closure film 3 is connected to the wiper film 2 by means of another seal 8.
  • Seal 8 is a peelable seal, whereas seal 7 provides a permanent seal.
  • the seal container is opened in that the closure film with the peelable seal is removed.
  • Fig. 3 shows a preferred embodiment for holding an elastic layer 11 in a cap 13 for a container.
  • the elastic layer 11 comprises a diameter that is larger than the diameter of the wiper film/closure film so that in can be mechanically fixed to the cap.
  • cap 13 comprises an inner annular flange 12 that provides that the elastic layer 11 is kept in the cap 13 once the cap 13 is unscrewed from the container.
  • Fig. 4 shows a preferred method of manufacturing a sealing assembly from a film assembly comprising a first film 2, a second film 3, and an elastic layer 11.
  • a first cutting tool 20 is used to punch through the elastic layer 11 (here from above).
  • the film assembly is supported by support structure 21.
  • a second cutting tool 22 is used to punch through the first and second films 2, 3 (here from below).
  • a support structure 23 is provided on the opposite side to support the film assembly during the punching step.
  • the diameter of the first cutting tool 20 is larger than the diameter of the second cutting tool 22 so that the resulting sealing assembly comprises a T-like cross-sectional shape.
  • the elastic layer 11 with its larger diameter can be mechanically attached to the cap, as shown in Fig. 3.
EP04007594A 2004-03-29 2004-03-29 Behälterverschluss und Verfahren zu seiner Herstellung Withdrawn EP1582477A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04007594A EP1582477A1 (de) 2004-03-29 2004-03-29 Behälterverschluss und Verfahren zu seiner Herstellung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04007594A EP1582477A1 (de) 2004-03-29 2004-03-29 Behälterverschluss und Verfahren zu seiner Herstellung

Publications (1)

Publication Number Publication Date
EP1582477A1 true EP1582477A1 (de) 2005-10-05

Family

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EP04007594A Withdrawn EP1582477A1 (de) 2004-03-29 2004-03-29 Behälterverschluss und Verfahren zu seiner Herstellung

Country Status (1)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008074095A1 (en) * 2006-12-21 2008-06-26 Lorquon Holdings Pty Ltd Baggage handling system and process for a transport vehicle
EP2230190A1 (de) * 2009-03-18 2010-09-22 Manufacture Generale de Joints Verschlussfolie mit Grifflasche zum Verschliessen eines Behälters
WO2012024707A1 (de) * 2010-08-25 2012-03-01 Constantia Teich Gmbh Fläschchen zur entnahme von stückig dargebotenem füllgut
EP2930122A1 (de) 2014-04-10 2015-10-14 Constantia Flexibles International GmbH Drehverschluss mit liner für behälter
EP2651635B1 (de) 2010-12-14 2018-04-04 Alfelder Kunststoffwerke Herm. Meyer GmbH Dichtscheibe zur induktionsversiegelung eines behälters
EP2644531B1 (de) 2012-03-27 2018-06-27 UAB "Mantinga" Behälter mit doppelter abdeckung
JP2019214394A (ja) * 2018-06-12 2019-12-19 凸版印刷株式会社 蓋材

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1066497A (en) * 1964-09-08 1967-04-26 Ekco Containers A cover for a container
EP0040797A1 (de) * 1980-05-28 1981-12-02 Zweckform Werk GmbH Mehrschichtiger Verschluss für eine Gefässöffnung
US4636273A (en) * 1983-08-24 1987-01-13 Societe Alsacienne D-Aluminium Process for manufacturing covers for containers opened by peeling off the cover
US4822326A (en) * 1987-08-20 1989-04-18 Boardman Molded Products, Inc. Method of forming a tamper evident sealing liner
US4960216A (en) * 1989-08-17 1990-10-02 Selig Sealing Products, Inc. Partially laminated closure cap for tamper proof container and method of making same
US5012946A (en) * 1989-02-27 1991-05-07 Minnesota Mining & Manufacturing Company Innerseal for a container and method of applying
US20030196418A1 (en) * 2002-02-07 2003-10-23 O'brien David John Container closure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1066497A (en) * 1964-09-08 1967-04-26 Ekco Containers A cover for a container
EP0040797A1 (de) * 1980-05-28 1981-12-02 Zweckform Werk GmbH Mehrschichtiger Verschluss für eine Gefässöffnung
US4636273A (en) * 1983-08-24 1987-01-13 Societe Alsacienne D-Aluminium Process for manufacturing covers for containers opened by peeling off the cover
US4822326A (en) * 1987-08-20 1989-04-18 Boardman Molded Products, Inc. Method of forming a tamper evident sealing liner
US5012946A (en) * 1989-02-27 1991-05-07 Minnesota Mining & Manufacturing Company Innerseal for a container and method of applying
US4960216A (en) * 1989-08-17 1990-10-02 Selig Sealing Products, Inc. Partially laminated closure cap for tamper proof container and method of making same
US20030196418A1 (en) * 2002-02-07 2003-10-23 O'brien David John Container closure

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008074095A1 (en) * 2006-12-21 2008-06-26 Lorquon Holdings Pty Ltd Baggage handling system and process for a transport vehicle
AU2007335189B2 (en) * 2006-12-21 2013-06-13 Lorquon Holdings Pty Ltd Baggage handling system and process for a transport vehicle
EP2230190A1 (de) * 2009-03-18 2010-09-22 Manufacture Generale de Joints Verschlussfolie mit Grifflasche zum Verschliessen eines Behälters
FR2943321A1 (fr) * 2009-03-18 2010-09-24 Joints Manuf Generale Opercule perfore muni d'une languette d'arrachage pour obturation d'un recipient
WO2012024707A1 (de) * 2010-08-25 2012-03-01 Constantia Teich Gmbh Fläschchen zur entnahme von stückig dargebotenem füllgut
EP2651635B1 (de) 2010-12-14 2018-04-04 Alfelder Kunststoffwerke Herm. Meyer GmbH Dichtscheibe zur induktionsversiegelung eines behälters
EP2644531B1 (de) 2012-03-27 2018-06-27 UAB "Mantinga" Behälter mit doppelter abdeckung
EP2930122A1 (de) 2014-04-10 2015-10-14 Constantia Flexibles International GmbH Drehverschluss mit liner für behälter
WO2015154113A1 (en) 2014-04-10 2015-10-15 Constantia Flexibles International Gmbh Rotary closure with liner for a container
JP2019214394A (ja) * 2018-06-12 2019-12-19 凸版印刷株式会社 蓋材

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