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EP0706473A1 - Process for sealing containers made of glass or the like and sealing disks which adhere to the mouth of such a container - Google Patents

Process for sealing containers made of glass or the like and sealing disks which adhere to the mouth of such a container

Info

Publication number
EP0706473A1
EP0706473A1 EP95921736A EP95921736A EP0706473A1 EP 0706473 A1 EP0706473 A1 EP 0706473A1 EP 95921736 A EP95921736 A EP 95921736A EP 95921736 A EP95921736 A EP 95921736A EP 0706473 A1 EP0706473 A1 EP 0706473A1
Authority
EP
European Patent Office
Prior art keywords
sealing
adhesive
web
closure
coated
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.)
Granted
Application number
EP95921736A
Other languages
German (de)
French (fr)
Other versions
EP0706473B1 (en
Inventor
Heinz-Rudolf Wiening
Horst Trombach
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.)
Alfelder Kunststoffwerke Herm Meyer GmbH
Original Assignee
Alfelder Kunststoffwerke Herm Meyer GmbH
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
Priority claimed from DE4417345A external-priority patent/DE4417345C2/en
Application filed by Alfelder Kunststoffwerke Herm Meyer GmbH filed Critical Alfelder Kunststoffwerke Herm Meyer GmbH
Priority to EP97118724A priority Critical patent/EP0826598A3/en
Priority to EP97118727A priority patent/EP0826599A3/en
Priority to SI9530199T priority patent/SI0706473T1/en
Publication of EP0706473A1 publication Critical patent/EP0706473A1/en
Application granted granted Critical
Publication of EP0706473B1 publication Critical patent/EP0706473B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/04—Discs
    • 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
    • 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
    • B65D2251/0068—Lower closure
    • B65D2251/0093—Membrane

Definitions

  • the invention relates to a method for sealing containers made of glass or the like and sealing disks adhering to the mouth of the container opening.
  • the invention has for its object to provide a new method for the uncomplicated sealing of containers made of glass or the like without heat on the sealing disc for sealing and a new, easily recyclable sealing disc adhering to the mouth of the container opening.
  • This object is achieved by the invention characterized in the claims. Developments of the invention are described in the subclaims.
  • the sealing washer itself is destroyed when the screw cap of the container is opened for the first time. It is therefore not possible to open the container unnoticed, to loosen the seal and to remove the contents or to add or replace them with undesired contents.
  • Due to the use of a pressure-activated adhesive instead of the known heat-activated adhesive metal foils or thermoplastic layers that are otherwise necessary are dispensed with.
  • the sealing washers can be easily recycled using essentially only one material.
  • the sealing disks are part of a sheet of a foamed plastic coated with a pressure-activatable adhesive that adheres to the mouth of the container opening,
  • the web is laminated on the side coated with the adhesive with a non-adhesive carrier tape that can be detached from the adhesive layer,
  • the sealing washers are pre-punched from the side of the web facing away from the carrier tape,
  • the punching depth is smaller than the thickness of the coated web
  • the sealing disks are released from the web and from the carrier tape by deflecting the tape on one side,
  • the rigid, one-sided sealing washers are gripped by one or more stamps,
  • a respective sealing washer is inserted with the side facing away from the adhesive into a closure on the closure bottom
  • the closure is placed on the container opening in such a way that the sealing disc with the adhesive layer is pressed first against the container opening and the adhesive is activated in the region of the opening mouth,
  • Pressure activatable means that the adhesive does not act as an adhesive in the normal state without acting on it.
  • the adhesive develops its adhesive or adhesive effect only through the action of a predeterminable force.
  • An adhesive is advantageously used for the method according to the invention and the sealing washer, which already exerts its adhesive effect due to the pressure exerted on the container against the mouth of the container when the closure is attached.
  • the activated adhesive is cured by storage. After about 24 hours, the adhesive is done.
  • Polystyrene is preferably used as the foamed plastic.
  • a material that cannot be connected with the adhesive is used for the carrier tape. It can also be coated with such a material. This prevents the adhesive from adhering or even sticking to the carrier tape on the carrier tape even before the closure provided with a sealing disc with adhesive has been attached to the container.
  • the sealing process can be done in separate steps.
  • the web coated with the adhesive and laminated with the carrier tape is produced in a separate production process, and the sealing discs are pre-punched in another process.
  • the sealing disks are detached and inserted into the sealing caps in a further process in the manufacture of the sealing caps, and the adhesive is activated by sealing the containers in a final manufacturing process for the product to be filled in the container, for example tablets.
  • a punch for performing the punching process can be a commercially available punch, the punch depth of which is dimensioned up to a maximum of the surface of the carrier tape that contacts the adhesive.
  • the carrier tape is advantageously not stamped in order to enable the sealing disks to be released from the adhesive by deflecting the carrier tape.
  • the web is passed over a roll of small diameter and a stamp is provided for grasping and inserting the sealing disks that lift off on one side from the carrier tape due to their rigidity into the closures for the containers.
  • the sealing disc for the closure of the container consists of a foamed plastic such as polystyrene, which is coated with a pressure-activatable adhesive.
  • the sealing disc inserted into the closure In order for the sealing disc inserted into the closure to remain in this closure, it has lugs or the like which jam in the closure in which they are inserted.
  • the lugs or the like advantageously hold the pre-punched discs in the web and prevent them from falling out of the web in front of the detachment device.
  • a closure for the closure of containers as a component to the recycling industry, e.g.
  • the pharmaceutical manufacturer that is supplied contains an already inserted sealing washer, which is coated on the side facing the container with a pressure-activatable adhesive.
  • the shape and dimensions of the sealing disks can be adapted to the closures, particularly during the stamping process.
  • FIG. 1 shows the process sequence in a manner as if all steps were carried out at one point without interruption
  • FIG. 2 shows a plan view of a web with sealing washers
  • FIG. 3 shows a sealing washer with lugs
  • FIG. 4 shows a closure with inserted sealing washer
  • Fig. 5 shows a container with closure and sealing washer in section.
  • FIG. 1 shows a basic illustration of the sequence of a method for producing sealing or sealing disks 1 for the tight closure of the openings 2 of containers 3.
  • a web 4 made of foamed plastic such as polystyrene is coated with an adhesive 5, which in the normal state does not have an adhesive effect, but activates its adhesive function under pressure.
  • the web 4 with the adhesive layer 5 is preferably prefabricated by a special manufacturer and delivered in roll form, but can also be produced in the manner shown in a common manufacturing process.
  • the web 4 is laminated on the side coated with the adhesive 5 with a carrier tape 6, on the surface of the adhesive even when pressure is applied can't stick.
  • the carrier tape preferably consists of Teflon polyethylene film, ie a plastic carrier coated with a non-stick layer, a material to which the web 4 with the adhesive layer 5 only adheres.
  • This web 4, 5, 6 can also be prefabricated.
  • the web 4 with adhesive layer 5 and carrier tape 6 is transported together by calender rolls 7 and 8 to a punching device 9 with a die 10, anvil or the like, which are only indicated symbolically here.
  • the punch 9 punches out several essentially circular sealing disks 1 transversely to the web 4.
  • the punching depth is chosen so that the punching does not reach the surface of the carrier tape 6.
  • the punch has, for example, adjustable spacers or the like.
  • Electronic scanning with sensors is also possible. The spacers or the control or regulation of the electronic scanning of the sensors can be adapted to the thickness of the sealing washers and the desired punching depth. As a result, the punching cannot accidentally cut through the carrier tape.
  • the sealing disks 1 still adhering to the surface of the carrier tape after the stamping thus essentially consist of the punched-out foam 41 with the adhesive coating 51.
  • the thus pre-punched web 4, 5, 6 is fed to a deflection roller 11, which the conveyor belt 6 with the web 4 adhering thereto and the coating 5 feeds a winding device (not shown). It is possible, prior to winding, to separate the conveyor belt and the web 4 adhering to it and to separate them in a recycling process.
  • the sealing washers 1 stand out because of the stiffness of their material from the surface of the carrier tape 4 and can thus be grasped by an indicated stamp 12 and into the opening 13 of the screw cap 14 for the container 3 are introduced.
  • the stamp grips the respective sealing washer from the adhesive side. It is advantageously coated with a material that may adhere to the adhesive but cannot adhere to it. When choosing the material for the sealing washer, a certain degree of stiffness is advantageous in order to show the described effect of the one-sided detachment of the sealing washers from the web.
  • the diameter of the deflection roller 11 should be taken into account.
  • the dimensions of the stamp 12 are advantageously adaptable or adapted to the surface dimensions of the sealing washers.
  • the screw cap 14 comes in front of the opening 2 of the container 3 and is screwed onto the opening 2, pressed or the like, so that the sealing disc 1 lies on the opening 2. It covers the edge 21 of the opening.
  • the adhesive of the layer 5 is activated and the sealing disc 1 sticks firmly to the edge 21. Since the sealing disc 1 is not activated in the remaining area, the contents in the container 3 become Tablets or the like not glued.
  • Figure 2 shows a plan view of a section of a web 4 with the pre-punched sealing washers 1 with and without lugs.
  • Many such sealing disks 1 can be provided next to one another.
  • a corresponding number of punches 12 are then arranged next to one another and can thus equip a number of screw closures 14 at the same time.
  • the area and thickness dimensions of the sealing washers can also be different, depending on the punch selected.
  • FIG. 3 shows a sealing washer 1 which has 14 lugs 15 for secure mounting in the screw closure.
  • the lugs 15 also prevent the sealing disk 1 from falling out of the web 4 prematurely before the deflection roller 11 is reached, since the alternating friction of the outer contour of the sealing disk lugs on the surrounding contour of the web 4 results in increased adhesion.
  • FIG. 4 shows a perspective view of the inside of the screw closure 14 with the sealing washer 1 inserted.
  • the sealing washer 1 can be pushed in as far as the closure bottom.
  • the lugs 15 of the sealing washer then hold onto the internal thread of the screw closure 14.
  • FIG. 5 shows a section through a container 3 with a sealing washer 1 and screw closure 14. Only the peripheral edge of the sealing washer sticks firmly to the container mouth. When the container is opened for the first time, one layer of the sealing disc therefore remains in the closure, whereas the other layer firmly bonded to the container mouth remains on the container and seals its opening. The contents of the container can therefore only be removed after this layer has been destroyed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

A process for sealing containers made of glass or the like uses sealing disks which adhere to the mouth of the container opening. For this purpose the sealing disks are given a pressure-sensitive adhesive and are part of an adhesive-coated band of foamed plastic. The band is laminated on a carrier strip that detaches from the adhesive layer. The sealing disks are prepunched from the side of the band away from the carrier strip, the punching depth being less than the thickness of the adhesive-coated band.

Description

Verfahren zum Abdichten von BehƤltern aus Glas oder dergleichen und auf der MĆ¼ndung der BehƤlterƶffnung haftende DichtscheibenĀ Method for sealing containers made of glass or the like and sealing washers adhering to the mouth of the container opening
Die Erfindung betrifft ein Verfahren zum Abdichten von BehƤltern aus Glas oder derĀ¬ gleichen und auf der MĆ¼ndung der BehƤlterƶffnung haftende Dichtscheiben.The invention relates to a method for sealing containers made of glass or the like and sealing disks adhering to the mouth of the container opening.
Es ist bekannt, BehƤlter aus Glas oder dergleichen mit ProduĪŗten zu fĆ¼llen und anĀ¬ schlieƟend dicht zu verschlieƟen. Eine bekannte Mƶglichkeit ist das VerschlieƟen solĀ¬ cher BehƤlter mit sogenannten HeiƟklebefolien. Bei solchen HeiƟklebefolien wird erst die BehƤlterƶffnung mit der HeiƟklebefolie verschlossen und danach erst der eigentliĀ¬ che VerschluƟ aufgebracht, z.B. aufgeschraubt. Oder die Dichtscheibe wird in den VerschluƟ eingefĆ¼gt und dieser auf dem BehƤlter aufgebracht. AnschlieƟend wird die Versiegelung durch Hitze vorgenommen. Beim Lƶsen des Verschlusses bleibt dann die Abdichtung durch die HeiƟklebefolie erhalten.It is known to fill containers made of glass or the like with products and then to seal them tightly. A known possibility is the sealing of such containers with so-called hot-melt films. With such hot-melt adhesive films, the container opening is first closed with the hot-melt adhesive film and only then is the actual seal applied, e.g. screwed on. Or the sealing washer is inserted into the closure and this is applied to the container. Then the sealing is done by heat. When the closure is released, the seal is retained by the hot-melt film.
Der Erfindung liegt die Aufgabe zugrunde, ein neues Verfahren zum unkomplizierten Abdichten von BehƤltern aus Glas oder dergleichen ohne Hitzeeinwirkung auf die Dichtscheibe zum Versiegeln und eine neue, auf der MĆ¼ndung der BehƤlterƶffnung haftende, leicht recyclebare Dichtscheibe zu schaffen. Diese Aufgabe wird durch die in den AnsprĆ¼chen gekennzeichnete Erfindung gelƶst. Weiterbildungen der Erfindung werden in den UnteransprĆ¼chen beschrieben.The invention has for its object to provide a new method for the uncomplicated sealing of containers made of glass or the like without heat on the sealing disc for sealing and a new, easily recyclable sealing disc adhering to the mouth of the container opening. This object is achieved by the invention characterized in the claims. Developments of the invention are described in the subclaims.
Dadurch wird eine Dichtscheibe geschaffen, die leicht herstellbar und in VerschlĆ¼sse einsetzbar ist und beim Ć¼blichen VerschlieƟen des BehƤlters mit einem VerschluƟ, insĀ¬ besondere einem SchraubverschluƟ, in einem Arbeitsgang mit der MĆ¼ndung der ƖffĀ¬ nung des BehƤlters verklebt wird. Durch die Wahl des Schaumstoffs wird beim ersten Ɩffnen des Schraubverschlusses des BehƤlters die Dichtscheibe selbst zerstƶrt. Es ist also nicht mƶglich, unbemerkt den BehƤlter zu ƶffnen, die Dichtung zu lƶsen und den Inhalt zu entnehmen oder mit unerwĆ¼nschtem Inhalt zu ergƤnzen oder zu ersetzen. Aufgrund der Verwendung eines druckaktivierbaren Klebers anstelle der bekannten hitzeaktivierbaren Kleber wird auf sonst notwendige Metallfolien oder thermoplastische Schichten verzichtet. Die Dichtscheiben sind durch die Verwendung im wesentlichen nur eines Materials leicht recyclebar.This creates a sealing washer, which is easy to manufacture and can be used in closures and is glued to the mouth of the opening of the container in one operation when the container is normally closed with a closure, in particular a screw closure. By selecting the foam, the sealing washer itself is destroyed when the screw cap of the container is opened for the first time. It is therefore not possible to open the container unnoticed, to loosen the seal and to remove the contents or to add or replace them with undesired contents. Due to the use of a pressure-activated adhesive instead of the known heat-activated adhesive, metal foils or thermoplastic layers that are otherwise necessary are dispensed with. The sealing washers can be easily recycled using essentially only one material.
ORIGINAL UNTERLAGEN Im Prinzip besteht das Verfahren gemƤƟ der Erfindung darin, daƟ O RIGINAL DOCUMENTS In principle, the method according to the invention is that
ā€¢ die Dichtscheiben Teil einer mit einem druckaktivierbaren, auf der MĆ¼ndung der BeĀ¬ hƤlterƶffnung haftenden Kleber beschichteten Bahn aus einem geschƤumten Kunststoff sind,The sealing disks are part of a sheet of a foamed plastic coated with a pressure-activatable adhesive that adheres to the mouth of the container opening,
ā€¢ die Bahn auf der mit dem Kleber beschichteten Seite mit einem nichtklebenden, von der Kleberschicht lƶsbaren TrƤgerband kaschiert wird,The web is laminated on the side coated with the adhesive with a non-adhesive carrier tape that can be detached from the adhesive layer,
ā€¢ die Dichtscheiben von der dem TrƤgerband abgewandten Seite der Bahn aus vorĀ¬ gestanzt werden,The sealing washers are pre-punched from the side of the web facing away from the carrier tape,
ā€¢ die Stanztiefe kleiner ist als die Dicke der beschichteten Bahn,The punching depth is smaller than the thickness of the coated web,
ā€¢ die kaschierte, vorgestanzte Bahn in Bogen- oder Rollenform transportiert wird,ā€¢ the laminated, pre-punched sheet is transported in sheet or roll form,
ā€¢ die Dichtscheiben aus der Bahn und von dem TrƤgerband durch Umlenken des Bandes einseitig gelƶst werden,The sealing disks are released from the web and from the carrier tape by deflecting the tape on one side,
ā€¢ die steifen, sich einseitig lƶsenden Dichtscheiben von einem oder mehreren StemĀ¬ pein erfaƟt werden,The rigid, one-sided sealing washers are gripped by one or more stamps,
ā€¢ eine jeweilige Dichtscheibe mit der dem Kleber abgewandten Seite voran in einen VerschluƟ auf den VerschluƟboden eingesetzt wird,A respective sealing washer is inserted with the side facing away from the adhesive into a closure on the closure bottom,
ā€¢ der VerschluƟ auf die BehƤlterƶffnung so aufgesetzt wird, daƟ die Dichtscheibe mit der Kleberschicht voran gegen die BehƤlterƶffnung gedrĆ¼ckt und der Kleber im BeĀ¬ reich der ƖffnungsmĆ¼ndung aktiviert wird,The closure is placed on the container opening in such a way that the sealing disc with the adhesive layer is pressed first against the container opening and the adhesive is activated in the region of the opening mouth,
ā€¢ der Kleber ohne Einwirkung von Hitze ausgehƤrtet wird.ā€¢ the adhesive is cured without exposure to heat.
Druckaktivierbar bedeutet, daƟ der Kleber im normalen Zustand ohne Einwirken einer Kraft auf diesen nicht als Kleber wirkt. Seine klebende oder haftende Wirkung entfaltet der Kleber erst durch Einwirken einer vorbestimmbaren Kraft. Vorteilhaft wird fĆ¼r das erfindungsgemƤƟe Verfahren und die Dichtscheibe ein Kleber verwendet, der bereits durch den beim AuffĆ¼gen des Verschlusses auf den BehƤlter gegen die BehƤltermĆ¼nĀ¬ dung ausgeĆ¼bten Druck seine Haftwirkung entfaltet.Pressure activatable means that the adhesive does not act as an adhesive in the normal state without acting on it. The adhesive develops its adhesive or adhesive effect only through the action of a predeterminable force. An adhesive is advantageously used for the method according to the invention and the sealing washer, which already exerts its adhesive effect due to the pressure exerted on the container against the mouth of the container when the closure is attached.
Die AushƤrtung des aktivierten Klebers erfolgt durch Lagerung. Nach etwa 24 Stunden ist die Klebung erfolgt.The activated adhesive is cured by storage. After about 24 hours, the adhesive is done.
Als geschƤumter Kunststoff wird vorzugsweise Polystyrol verwendet. FĆ¼r das TrƤgerband wird ein nicht mit dem Kleber verbindbares Material verwendet. Es kann auch mit einem solchen Material beschichtet sein. Dadurch wird verhindert, daƟ der Kleber bereits vor dem AuffĆ¼gen des mit einer Dichtscheibe mit Kleber versehenen Verschlusses auf den BehƤlter an dem TrƤgerband noch innerhalb der ProduktionsmaĀ¬ schinen anhaften oder sogar kleben kann.Polystyrene is preferably used as the foamed plastic. A material that cannot be connected with the adhesive is used for the carrier tape. It can also be coated with such a material. This prevents the adhesive from adhering or even sticking to the carrier tape on the carrier tape even before the closure provided with a sealing disc with adhesive has been attached to the container.
Das Verfahren zum Abdichten kann in gesonderten Schritten erfolgen. Beispielsweise erfolgt die Herstellung der mit dem Kleber beschichteten und mit dem TrƤgerband kaschierten Bahn in einem gesonderten Herstellungsverfahren, die Vorstanzung der Dichtscheiben in einem anderen Verfahren. Die Ablƶsung der Dichtscheiben und ihre EinfĆ¼gung in die VerschluƟkappen wird in einem weiteren Verfahren bei der HerstelĀ¬ lung der VerschluƟkappen vorgenommen und die Aktivierung des Klebers durch Ver- schlieƟung der BehƤlter in einem abschlieƟenden Herstellungsverfahren fĆ¼r das im BehƤlter einzufĆ¼llende Produkt, beispielsweise Tabletten.The sealing process can be done in separate steps. For example, the web coated with the adhesive and laminated with the carrier tape is produced in a separate production process, and the sealing discs are pre-punched in another process. The sealing disks are detached and inserted into the sealing caps in a further process in the manufacture of the sealing caps, and the adhesive is activated by sealing the containers in a final manufacturing process for the product to be filled in the container, for example tablets.
Eine Stanze fĆ¼r die DurchfĆ¼hrung des Stanzverfahrens kann eine handelsĆ¼bliche Stanze sein, deren Stanztiefe bis maximal zu der den Kleber berĆ¼hrenden OberflƤche des TrƤgerbandes bemessen ist.A punch for performing the punching process can be a commercially available punch, the punch depth of which is dimensioned up to a maximum of the surface of the carrier tape that contacts the adhesive.
Dies wird durch Mittel, beispielsweise Abstandhalter erreicht, die vorteilhaft auf die Dik- ke der Bahn einstellbar sind. Das TrƤgerband wird vorteilhaft nicht mitgestanzt, um das Lƶsen der Dichtscheiben mit dem Kleber von diesem durch Umlenken des TrƤgerbanĀ¬ des zu ermƶglichen.This is achieved by means, for example spacers, which can advantageously be adjusted to the thickness of the web. The carrier tape is advantageously not stamped in order to enable the sealing disks to be released from the adhesive by deflecting the carrier tape.
Bei der Ablƶsevorrichtung wird die Bahn Ć¼ber eine Rolle kleinen Durchmessers geleitet und ein Stempel zum Erfassen und Einsetzen der sich von dem TrƤgerband infolge ihrer Steifheit einseitig abhebenden Dichtscheiben in die VerschlĆ¼sse fĆ¼r die BehƤlter vorgesehen. Die Dichtscheibe fĆ¼r die VerschlieƟung der BehƤlter besteht aus einem geschƤumten Kunststoff wie Polystyrol, der mit einem druckaktivierbaren Kleber beschichtet ist. Damit die in den VerschluƟ eingesetzte Dichtscheibe sich in diesem VerschluƟ hƤlt, weist sie Nasen oder dergleichen auf, die sich in dem VerschluƟ verklemmen, in den sie eingesetzt werden. Die Nasen oder dergleichen halten die vorgestanzten Scheiben vorteilhaft in der Bahn fest und verhindern deren vorzeitiges Herausfallen aus der Bahn vor der Ablƶsevorrichtung.In the detaching device, the web is passed over a roll of small diameter and a stamp is provided for grasping and inserting the sealing disks that lift off on one side from the carrier tape due to their rigidity into the closures for the containers. The sealing disc for the closure of the container consists of a foamed plastic such as polystyrene, which is coated with a pressure-activatable adhesive. In order for the sealing disc inserted into the closure to remain in this closure, it has lugs or the like which jam in the closure in which they are inserted. The lugs or the like advantageously hold the pre-punched discs in the web and prevent them from falling out of the web in front of the detachment device.
Ein VerschluƟ fĆ¼r die VerschlieƟung von BehƤltern, wie er als Bauteil an die verwerĀ¬ tende Industrie, z.B. Arzneimittelhersteller, geliefert wird, enthƤlt eine bereits eingesetzĀ¬ te Dichtscheibe, die auf der dem BehƤlter zugewandten Seite mit einem druckaktivierĀ¬ baren Kleber beschichtet ist. Die Dichtscheiben sind bezĆ¼glich ihrer Form und ihrer Abmessungen an die VerschlĆ¼sse, insbesondere beim Stanzvorgang anpaƟbar.A closure for the closure of containers, as a component to the recycling industry, e.g. The pharmaceutical manufacturer that is supplied contains an already inserted sealing washer, which is coated on the side facing the container with a pressure-activatable adhesive. The shape and dimensions of the sealing disks can be adapted to the closures, particularly during the stamping process.
Zur nƤheren ErlƤuterung der Erfindung wird im folgenden ein AusfĆ¼hrungsbeispiei der Erfindung anhand der Zeichnungen beispielsweise beschrieben.For a more detailed explanation of the invention, an exemplary embodiment of the invention is described below with reference to the drawings, for example.
Diese zeigen inThese show in
Fig. 1 den Verfahrensablauf in einer Weise, als wĆ¼rden alle Schritte ohne UnterbreĀ¬ chung an einer Stelle durchgefĆ¼hrt, Fig. 2 eine Draufsicht auf eine Bahn mit Dichtscheiben, Fig. 3 eine Dichtscheibe mit Nasen, Fig. 4 einen VerschluƟ mit eingesetzter Dichtscheibe, Fig. 5 einen BehƤlter mit VerschluƟ und Dichtscheibe im Schnitt.1 shows the process sequence in a manner as if all steps were carried out at one point without interruption, FIG. 2 shows a plan view of a web with sealing washers, FIG. 3 shows a sealing washer with lugs, FIG. 4 shows a closure with inserted sealing washer, Fig. 5 shows a container with closure and sealing washer in section.
In Figur 1 ist in Prinzipdarstellung der Ablauf eines Verfahrens zur Herstellung von Dichtungs- oder Dichtscheiben 1 fĆ¼r den dichten AbschluƟ der Ɩffnungen 2 von BehƤlĀ¬ tern 3 abgebildet. Eine Bahn 4 aus geschƤumtem Kunststoff wie Polystyrol wird mit einem Kleber 5 beschichtet, der in normalem Zustand nicht klebend wirkt, aber unter Druck seine Klebefunktion aktiviert. Die Bahn 4 mit der Kleberschicht 5 wird vorzugsĀ¬ weise von einem Spezialhersteller vorgefertigt und in Rollenform angeliefert, kann aber auch in der dargestellten Weise in einem gemeinsamen Fertigungsverfahren hergeĀ¬ stellt werden. Die Bahn 4 wird auf der mit dem Kleber 5 beschichteten Seite mit einem TrƤgerband 6 kaschiert, auf dessen OberflƤche der Kleber selbst bei DruckausĆ¼bung nicht kleben kann. Das TrƤgerband besteht vorzugsweise aus teflonischer Polyethylen- folie, also einem mit Antihaftschicht beschichteten KunststofftrƤger, einem Material, auf dem die Bahn 4 mit der Kleberschicht 5 nur haftet. Auch diese Bahn 4,5,6 kann vorgeĀ¬ fertigt sein.FIG. 1 shows a basic illustration of the sequence of a method for producing sealing or sealing disks 1 for the tight closure of the openings 2 of containers 3. A web 4 made of foamed plastic such as polystyrene is coated with an adhesive 5, which in the normal state does not have an adhesive effect, but activates its adhesive function under pressure. The web 4 with the adhesive layer 5 is preferably prefabricated by a special manufacturer and delivered in roll form, but can also be produced in the manner shown in a common manufacturing process. The web 4 is laminated on the side coated with the adhesive 5 with a carrier tape 6, on the surface of the adhesive even when pressure is applied can't stick. The carrier tape preferably consists of Teflon polyethylene film, ie a plastic carrier coated with a non-stick layer, a material to which the web 4 with the adhesive layer 5 only adheres. This web 4, 5, 6 can also be prefabricated.
Die Bahn 4 mit Kleberschicht 5 und TrƤgerband 6 wird durch Kalander -Rollen 7 und 8 gemeinsam zu einer Stanzvorrichtung 9 mit Matrize 10, AmboƟ oder dergleichen transĀ¬ portiert, die hier nur symbolisch angedeutet sind. Die Stanze 9 stanzt jeweils quer zur Bahn 4 mehrere im wesentlichen kreisfƶrmige Dichtscheiben 1 aus. Die Stanztiefe ist so gewƤhlt, daƟ die Stanzung die OberflƤche des TrƤgerbandes 6 nicht erreicht. Die Stanze weist dazu beispielsweise einstellbare Abstandhalter oder dergleichen auf. Mƶglich ist auch eine elektronische Abtastung mit Sensoren. Die Abstandhalter oder die Steuerung beziehungsweise Regelung der elektronischen Abtastung der Sensoren kƶnnen der Dicke der Dichtscheiben und der gewĆ¼nschten Stanztiefe angepaƟt werĀ¬ den. Die Stanzung kann dadurch das TrƤgerband nicht versehentlich mitdurchtrennen. Die nach der Stanzung noch an der OberflƤche des TrƤgerbandes haftenden DichtĀ¬ scheiben 1 bestehen also im wesentlichsn aus dem ausgestanzten Schaumstoff 41 mit der Kleberbeschichtung 51. Die so vorgestanzte Bahn 4,5,6 wird einer Umlenkrolle 11 zugefĆ¼hrt, die das Transportband 6 mit der daran haftenden Bahn 4 und der BeschichĀ¬ tung 5 einer nicht dargestellten Aufwickeleinrichtung zufĆ¼hrt. Es ist mƶglich, vor dem Aufwickeln, das Transportband und die daran haftende Bahn 4 zu trennen und geĀ¬ trennt einem Recycling-Vorgang zuzufĆ¼hren. Wegen des kleinen Durchmessers der Umienkrolle 11 folgen zwar die Bahn 4 und das TrƤgerband dem vorgeschriebenen Weg, doch heben sich die Dichtscheiben 1 wegen der Steifheit ihres Materials von der OberflƤche des TrƤgerbandes 4 ab und kƶnnen so von einem angedeuteten Stempel 12 erfaƟt und in die Ɩffnung 13 des Schraubverschlusses 14 fĆ¼r den BehƤlter 3 eingeĀ¬ fĆ¼hrt werden. Der Stempel ergreift die jeweilige Dichtscheibe von der Kleberseite aus. Er ist vorteilhaft mit einem Material beschichtet, das zwar an dem Kleber haften, nicht jedoch mit ihm verkleben kann. Bei der Materialwahl fĆ¼r die Dichtscheibe ist ein gewisĀ¬ ses MaƟ an Steifheit vorteilhaft, um den beschriebenen Effekt des einseitigen Ablƶ- sens der Dichtscheiben aus der Bahn zu zeigen. Der Durchmesser der Umlenkrolle 11 sollte dabei berĆ¼cksichtigt werden. Die Abmessungen der Stempel 12 sind vorteilhaft an die FlƤchenabmessungen der Dichtscheiben anpaƟbar oder angepaƟt. Im nƤchsten Arbeitsgang gelangt der SchraubverschluƟ 14 vor die Ɩffnung 2 des BeĀ¬ hƤlters 3 und wird so auf die Ɩffnung 2 geschraubt, gedrĆ¼ckt o.a., daƟ sich die DichtĀ¬ scheibe 1 auf die Ɩffnung 2 legt. Sie bedeckt dabei den Rand 21 der Ɩffnung. Durch den beim VerschlieƟen des BehƤlters 3 auf den Rand 21 ausgeĆ¼bten Druck wird der Kleber der Schicht 5 aktiviert und klebt die Dichtscheibe 1 fest auf den Rand 21. Da die Dichtscheibe 1 im Ć¼brigen Bereich nicht aktiviert wird, werden die im BehƤlter 3 enthalĀ¬ tenden Tabletten oder dergleichen nicht verklebt.The web 4 with adhesive layer 5 and carrier tape 6 is transported together by calender rolls 7 and 8 to a punching device 9 with a die 10, anvil or the like, which are only indicated symbolically here. The punch 9 punches out several essentially circular sealing disks 1 transversely to the web 4. The punching depth is chosen so that the punching does not reach the surface of the carrier tape 6. The punch has, for example, adjustable spacers or the like. Electronic scanning with sensors is also possible. The spacers or the control or regulation of the electronic scanning of the sensors can be adapted to the thickness of the sealing washers and the desired punching depth. As a result, the punching cannot accidentally cut through the carrier tape. The sealing disks 1 still adhering to the surface of the carrier tape after the stamping thus essentially consist of the punched-out foam 41 with the adhesive coating 51. The thus pre-punched web 4, 5, 6 is fed to a deflection roller 11, which the conveyor belt 6 with the web 4 adhering thereto and the coating 5 feeds a winding device (not shown). It is possible, prior to winding, to separate the conveyor belt and the web 4 adhering to it and to separate them in a recycling process. Because of the small diameter of the outer roller 11, the web 4 and the carrier tape follow the prescribed path, but the sealing washers 1 stand out because of the stiffness of their material from the surface of the carrier tape 4 and can thus be grasped by an indicated stamp 12 and into the opening 13 of the screw cap 14 for the container 3 are introduced. The stamp grips the respective sealing washer from the adhesive side. It is advantageously coated with a material that may adhere to the adhesive but cannot adhere to it. When choosing the material for the sealing washer, a certain degree of stiffness is advantageous in order to show the described effect of the one-sided detachment of the sealing washers from the web. The diameter of the deflection roller 11 should be taken into account. The dimensions of the stamp 12 are advantageously adaptable or adapted to the surface dimensions of the sealing washers. In the next step, the screw cap 14 comes in front of the opening 2 of the container 3 and is screwed onto the opening 2, pressed or the like, so that the sealing disc 1 lies on the opening 2. It covers the edge 21 of the opening. As a result of the pressure exerted on the edge 21 when the container 3 is closed, the adhesive of the layer 5 is activated and the sealing disc 1 sticks firmly to the edge 21. Since the sealing disc 1 is not activated in the remaining area, the contents in the container 3 become Tablets or the like not glued.
Figur 2 zeigt eine Draufsicht auf einen Ausschnitt einer Bahn 4 mit den vorgestanzten Dichtscheiben 1 mit und ohne Nasen. Es kƶnnen viele solcher Dichtscheiben 1 neĀ¬ beneinander vorgesehen werden. FĆ¼r diesen Fall sind dann auch entsprechend viele Stempel 12 nebeneinander angeordnet und kƶnnen so gleichzeitig etliche SchraubverĀ¬ schlĆ¼sse 14 bestĆ¼cken. Die FlƤchen- und Dickenabmessungen der Dichtscheiben kƶnĀ¬ nen auch unterschiedlich sein, abhƤngig von der gewƤhlten Stanze.Figure 2 shows a plan view of a section of a web 4 with the pre-punched sealing washers 1 with and without lugs. Many such sealing disks 1 can be provided next to one another. In this case, a corresponding number of punches 12 are then arranged next to one another and can thus equip a number of screw closures 14 at the same time. The area and thickness dimensions of the sealing washers can also be different, depending on the punch selected.
In Figur 3 ist eine Dichtscheibe 1 dargestellt, die zur sicheren Halterung im SchraubĀ¬ verschluƟ 14 Nasen 15 aufweist. Durch die Nasen 15 wird darĆ¼ber hinaus auch ein vorzeitiges Herausfallen der Dichtscheibe 1 aus der Bahn 4 vor Erreichen der UmĀ¬ lenkrolle 11 verhindert, da durch die wechselweise Reibung der AuƟenkontur der Dichtscheibennasen an der Umgebungskontur der Bahn 4 eine verstƤrkte Haftung entsteht.FIG. 3 shows a sealing washer 1 which has 14 lugs 15 for secure mounting in the screw closure. The lugs 15 also prevent the sealing disk 1 from falling out of the web 4 prematurely before the deflection roller 11 is reached, since the alternating friction of the outer contour of the sealing disk lugs on the surrounding contour of the web 4 results in increased adhesion.
Figur 4 zeigt eine perspektivische Ansicht der Innenseite des Schraubverschlusses 14 mit eingesetzter Dichtscheibe 1. Die Dichtscheibe 1 kann bis an den VerschluƟboden eingeschoben werden. Die Nasen 15 der Dichtscheibe halten sich dann an dem InnenĀ¬ gewinde des Schraubverschlusses 14 fest. Figur 5 zeigt einen Schnitt durch einen BehƤlter 3 mit Dichtscheibe 1 und SchraubverĀ¬ schluƟ 14. Es klebt nur der umlaufende Rand der Dichtscheibe fest auf der BehƤlterĀ¬ mĆ¼ndung. Beim erstmaligen Ɩffnen des BehƤlters verbleibt daher eine Schicht der Dichtscheibe im VerschluƟ, wohingegen die andere, mit der BehƤltermĆ¼ndung festverĀ¬ klebte Schicht auf dem BehƤlter verbleibt und dessen Ɩffnung versiegelt. Eine EntĀ¬ nahme des BehƤlterinhaltes ist daher nur nach Zerstƶren dieser Schicht mƶglich. FIG. 4 shows a perspective view of the inside of the screw closure 14 with the sealing washer 1 inserted. The sealing washer 1 can be pushed in as far as the closure bottom. The lugs 15 of the sealing washer then hold onto the internal thread of the screw closure 14. FIG. 5 shows a section through a container 3 with a sealing washer 1 and screw closure 14. Only the peripheral edge of the sealing washer sticks firmly to the container mouth. When the container is opened for the first time, one layer of the sealing disc therefore remains in the closure, whereas the other layer firmly bonded to the container mouth remains on the container and seals its opening. The contents of the container can therefore only be removed after this layer has been destroyed.

Claims

A n s p r Ć¼ c h e Expectations
1. Verfahren zum Abdichten von BehƤltern aus Glas oder dergleichen mit aus einer Bahn vorgestanzten Dichtscheiben, die in einem VerschluƟ auf dem VerschluƟboĀ¬ den eingesetzt werden, bei dem die vorgestanzte Bahn transportiert wird, dadurch gekennzeichnet, daƟ die Dichtscheiben (1) Teil einer mit einem druckaktivierbaren, auf der MĆ¼ndung der BehƤlterƶffnung haftenden Kleber (5) beschichteten Bahn (4) aus einem geĀ¬ schƤumten Kunststoff sind, daƟ die Bahn (4) auf der mit dem Kleber (5) beschichteten Seite mit einem nichtkle- benden, von der Kleberschicht lƶsbaren TrƤgerband (6) kaschiert wird, daƟ die Dichtscheiben (1) von der dem TrƤgerband (6) abgewandten Seite der Bahn (4) aus vorgestanzt werden, daƟ die Stanztiefe kleiner ist als die Dicke der beschichteten Bahn (4), daƟ die kaschierte, vorgestanzte Bahn in Bogen- oder Rollenform transportiert wird, daƟ die Dichtscheiben (1 ) aus der Bahn (4) und von dem TrƤgerband (6) durch Umlenken des Bandes (6) einseitig gelƶst werden, daƟ die steifen, sich einseitig lƶsenden Dichtscheiben (1) von einem oder mehreren Stempeln (12) erfaƟt werden, daƟ eine jeweilige Dichtscheibe (1 ) mit der dem Kleber (5) abgewandten Seite voran in einen VerschluƟ (14) auf den VerschluƟboden eingesetzt wird, daƟ der VerschluƟ (14) auf die BehƤlterƶffnung so aufgesetzt wird, daƟ die DichtĀ¬ scheibe (1) mit der Kleberschicht voran gegen die BehƤlterƶffnung (2) gedrĆ¼ckt und der Kleber (5) im Bereich der ƖffnungsmĆ¼ndung druckaktiviert wird, daƟ der Kleber (5) ohne Einwirkung von Hitze ausgehƤrtet wird.1. A method for sealing containers made of glass or the like with sealing discs pre-punched from a web, which are used in a closure on the closure bottom, in which the pre-stamped web is transported, characterized in that the sealing discs (1) are part of a a pressure-activatable adhesive (5) coated on the mouth of the container opening, coated web (4) made of a foamed plastic, that the web (4) on the side coated with the adhesive (5) with a non-adhesive, from the Adhesive layer releasable carrier tape (6) is laminated, that the sealing discs (1) are pre-punched from the side of the web (4) facing away from the carrier tape (6), that the punching depth is smaller than the thickness of the coated web (4), that the Laminated, pre-punched sheet is transported in sheet or roll form, that the sealing washers (1) from the sheet (4) and from the carrier tape (6) by deflecting the tape (6) detached on one side be that the rigid, one-sided detachable sealing washers (1) are grasped by one or more stamps (12), that a respective sealing washer (1) with the side facing away from the adhesive (5) in front in a closure (14) on the closure bottom is used that the closure (14) is placed on the container opening in such a way that the sealing disc (1) with the adhesive layer is pressed first against the container opening (2) and the adhesive (5) is pressure-activated in the area of the opening mouth so that the Glue (5) is cured without exposure to heat.
2. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daƟ der geschƤumte Kunststoff aus Polystyrol besteht. 2. The method according to claim 1 or 2, characterized in that the foamed plastic consists of polystyrene.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daƟ das Verfahren in getrennten Schritten durchgefĆ¼hrt wird, nƤmlich daƟ die Herstellung der mit dem Kleber (5) beschichteten und mit dem TrƤgerband (6) kaschierten Bahn (4) in einem Herstellungsverfahren, die Vorstanzung der Dichtscheiben (1) in einem anderen Verfahren, die Ablƶsung der Dichtscheiben (1) und ihre EinfĆ¼gung in die VerschluƟkappen (14) in einem weiteren Verfahren und die Aktivierung des Klebers (5) durch VerschlieƟung der BehƤlter (3) in einem anĀ¬ schlieƟenden Herstellungsverfahren fĆ¼r das Produkt erfolgt.3. The method according to claim 1 or 2, characterized in that the method is carried out in separate steps, namely that the production of the coated with the adhesive (5) and with the carrier tape (6) laminated web (4) in a manufacturing process, the Pre-punching of the sealing washers (1) in another process, detaching the sealing washers (1) and inserting them into the sealing caps (14) in a further process and activating the adhesive (5) by closing the container (3) in an an closing manufacturing process for the product.
4. Stanze fĆ¼r die DurchfĆ¼hrung eines Verfahrens nach einem der AnsprĆ¼che 1 bis 3, dadurch gekennzeichnet, daƟ Mittel vorgesehen sind, die die Stanztiefe bis maximal zu der den Kleber (5) beĀ¬ rĆ¼hrenden OberflƤche des TrƤgerbandes (6) bemessen.4. Punch for performing a method according to one of claims 1 to 3, characterized in that means are provided which measure the punching depth up to a maximum of the surface of the carrier tape (6) which contacts the adhesive (5).
5. Ablƶsevorrichtung fĆ¼r die DurchfĆ¼hrung eines Verfahrens nach einem der AnsprĆ¼Ā¬ che 1 bis 3, dadurch gekennzeichnet, daƟ die Bahn (4) Ć¼ber eine Rolle (11) kleinen Durchmessers geleitet wird und ein oder mehrere Stempel (12) zum Erfassen und Einsetzen der sich von dem TrƤgerĀ¬ band (6) einseitig abhebenden Dichtscheiben (1) in die VerschlĆ¼sse (14) fĆ¼r die BeĀ¬ hƤlter (3) vorgesehen sind.5. Detaching device for performing a method according to one of AnsprĆ¼Ā¬ che 1 to 3, characterized in that the web (4) is passed over a roller (11) of small diameter and one or more stamps (12) for detecting and inserting the sealing disks (1) lifting off from the carrier tape (6) on one side are provided in the closures (14) for the containers (3).
6. Dichtscheibe fĆ¼r die VerschlieƟung von BehƤltern, dadurch gekennzeichnet, daƟ sie aus einem geschƤumten Kunststoff besteht, der mit einem druckaktivierba- ren Kleber (5) beschichtet ist. 6. Sealing disc for the closure of containers, characterized in that it consists of a foamed plastic which is coated with a pressure-activatable adhesive (5).
7. Dichtscheibe nach Anspruch 6, dadurch gekennzeichnet, daƟ sie Nasen (15) oder dergleichen aufweist, die sich in dem VerschluƟ (14) verĀ¬ klemmen, in den sie eingesetzt werden.7. Sealing washer according to claim 6, characterized in that it has lugs (15) or the like which jam in the closure (14) in which they are used.
8. VerschluƟ fĆ¼r die VerschlieƟung von BehƤltern, dadurch gekennzeichnet, daƟ er eine Dichtscheibe nach Anspruch 6 oder 7 enthƤlt, die auf der dem BehƤlter (3) zugewandten Seite mit einem druckaktivierbaren Kleber (5) beschichtet ist. 8. Closure for closing containers, characterized in that it contains a sealing washer according to claim 6 or 7, which is coated on the side facing the container (3) with a pressure-activatable adhesive (5).
EP95921736A 1994-05-09 1995-05-09 Process for sealing containers made of glass or the like and sealing disks which adhere to the mouth of such a container Expired - Lifetime EP0706473B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP97118724A EP0826598A3 (en) 1994-05-09 1995-05-09 Detaching roller
EP97118727A EP0826599A3 (en) 1994-05-09 1995-05-09 Punch
SI9530199T SI0706473T1 (en) 1994-05-09 1995-05-09 Process for sealing containers made of glass or the like and sealing disks which adhere to the mouth of such a container

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4416385 1994-05-09
DE4416385 1994-05-09
DE4417345 1994-05-18
DE4417345A DE4417345C2 (en) 1994-05-09 1994-05-18 Method for sealing containers made of glass or the like and sealing washers adhering to the mouth of the container opening
PCT/EP1995/001745 WO1995030576A1 (en) 1994-05-09 1995-05-09 Process for sealing containers made of glass or the like and sealing disks which adhere to the mouth of such a container

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP97118724A Division EP0826598A3 (en) 1994-05-09 1995-05-09 Detaching roller
EP97118727A Division EP0826599A3 (en) 1994-05-09 1995-05-09 Punch

Publications (2)

Publication Number Publication Date
EP0706473A1 true EP0706473A1 (en) 1996-04-17
EP0706473B1 EP0706473B1 (en) 1999-08-04

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ID=25936451

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Application Number Title Priority Date Filing Date
EP95921736A Expired - Lifetime EP0706473B1 (en) 1994-05-09 1995-05-09 Process for sealing containers made of glass or the like and sealing disks which adhere to the mouth of such a container

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EP (1) EP0706473B1 (en)
AT (1) ATE182852T1 (en)
DK (1) DK0706473T3 (en)
ES (1) ES2135070T3 (en)
GR (1) GR3031274T3 (en)
WO (1) WO1995030576A1 (en)

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US8057896B2 (en) 2005-01-06 2011-11-15 Selig Sealing Products, Inc. Pull-tab sealing member with improved heat distribution for a container
US8308003B2 (en) 2007-06-22 2012-11-13 Selig Sealing Products, Inc. Seal for a container
US8715825B2 (en) 2005-01-06 2014-05-06 Selig Sealing Products, Inc. Two-piece pull-tab sealing member with improved heat distribution for a container
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Also Published As

Publication number Publication date
ES2135070T3 (en) 1999-10-16
WO1995030576A1 (en) 1995-11-16
EP0706473B1 (en) 1999-08-04
DK0706473T3 (en) 2000-03-06
ATE182852T1 (en) 1999-08-15
GR3031274T3 (en) 1999-12-31

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