EP0488985A1 - Mehrlappige Deckelschicht - Google Patents

Mehrlappige Deckelschicht Download PDF

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Publication number
EP0488985A1
EP0488985A1 EP91870191A EP91870191A EP0488985A1 EP 0488985 A1 EP0488985 A1 EP 0488985A1 EP 91870191 A EP91870191 A EP 91870191A EP 91870191 A EP91870191 A EP 91870191A EP 0488985 A1 EP0488985 A1 EP 0488985A1
Authority
EP
European Patent Office
Prior art keywords
disc
container
neck
polymer
aluminum
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Withdrawn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
EP91870191A
Other languages
English (en)
French (fr)
Inventor
Armand Wagner
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.)
Lynes Holdings SA
Original Assignee
Lynes Holdings SA
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 Lynes Holdings SA filed Critical Lynes Holdings SA
Publication of EP0488985A1 publication Critical patent/EP0488985A1/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Withdrawn legal-status Critical Current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
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/04—Discs

Definitions

  • the present invention relates to a multilayer seal intended to close the neck of a container, and which generally comprises, in order, incidentally a disc of compressible material such as, among other things, reconstituted cork, cardboard, a material plastic or a material having similar properties and a layer of a temporary adhesive, in any event, at least one metallic disc such as an aluminum disc and a polymer disc, the metallic disc, previously secured to a polymer disc being intended to be welded to the neck of the container during an induction or conduction process to which the cover is subjected in contact with the container.
  • a disc of compressible material such as, among other things, reconstituted cork, cardboard, a material plastic or a material having similar properties and a layer of a temporary adhesive
  • at least one metallic disc such as an aluminum disc and a polymer disc, the metallic disc, previously secured to a polymer disc being intended to be welded to the neck of the container during an induction or conduction process to which the cover is subjected in contact with the container.
  • plastic or glass containers or cans are becoming a generally recognized necessity.
  • a percentage of the mass to be recycled consists of bottles or containers whose necks were originally closed with a metal disc necessary for the induction or conduction process, generally aluminum.
  • the metal disc which will always be referred to below as an aluminum disc is brought to a sufficient temperature, either by induction or by conduction, so that it adheres to the neck of the container. At the same time as the polymer disc protects the aluminum from any contact with the contents of the container and ensures the welding.
  • the object of the invention is to propose a multilayer cover which offers a solution to the problem as it was exposed in the preamble while ensuring a primary inviolability and sealing.
  • US Patent 4,596,338 has proposed a substantial modification of the conventional order in which the various layers constituting a disc or cover are arranged.
  • the suggested order is unacceptable when we cannot tolerate the presence of an air-permeable disc when using a metallic disc, generally aluminum, to ensure total tightness and diffuse heat. required by the induction sealing process.
  • the aforementioned cover is constituted, in order, incidentally by a disk of compressible material, a metal disk possibly coated with a protective disk of synthetic material when the metal disk must be protected against the aggressiveness of the contents of the container, a disc such as a paper disc for example, capable of absorbing a layer of temporary adhesive and a polymer disc temporarily connected to said layer of temporary adhesive caused to dissociate during the induction or conduction heating process, which causes the polymer disc to adhere to the neck of the container.
  • a disc such as a paper disc for example, capable of absorbing a layer of temporary adhesive and a polymer disc temporarily connected to said layer of temporary adhesive caused to dissociate during the induction or conduction heating process, which causes the polymer disc to adhere to the neck of the container.
  • Figure 1 is a sectional view of a stopper provided with a common type seal.
  • Figure 2 is a sectional view of the neck of a container to which adheres an aluminum disc secured to a polymer disc.
  • Figure 3 is a sectional view of a plug provided with a cover according to the invention.
  • Figure 4 is a sectional view of the neck of a container to which adheres only a polymer disc.
  • FIG. 1 the neck 1 of a plastic container is noted. It should be clearly understood that if the figures show a container neck 1 provided, for example, with a screw thread and a plug 2 screwing onto it, the invention is in no way limited to this type of closure. It can find application in any type of closure of a bottle or container.
  • a disc of reconstituted cork, cardboard or plastic This disc is hereinafter called “compressible disc” 4.
  • a layer of temporary adhesive represented by the reference 5, separates the disc of compressible material 4 from an aluminum disc 6 and its purpose is to temporarily bring the disc together aluminum 6 to the compressible disc 4.
  • the assembly is completed by a polymer disc 7 integral with the aluminum disc 6 and intended to ensure fusion welding during the induction or conduction process and which incidentally protects the aluminum disc of the liquid or powdery products contained in the container.
  • the aluminum disc heats up to cause the fusion of the layer of adhesive which served as a temporary bond between the aluminum disc 6 and the compressible disc 4.
  • the heat developed by the phenomenon of induction or conduction causes a local fusion of the edge of the polymer disc 7 which is welded on the neck 1 of the container, integrally with the aluminum disc 6.
  • the cover comprises several layers of material which the Applicant expressly says that it can offer certain variants in the spirit of the invention described once again by way of example with particular reference to the figure. 3.
  • FIG. 3 shows another arrangement of the various layers of the cover thanks to which a result is obtained in a completely original manner which makes it possible to envisage recycling a mass of containers, bottles or waste of the type already described below. above, which does not include any metallic element.
  • Figure 3 shows indeed the compressible disc 4 ′ to which an aluminum disc 6 ′ adheres. Beyond the aluminum disc 6 ′ is interposed a paper disc 8 or another material capable of absorbing the layer of adhesive 5 ′ which temporarily joins the paper disc 8 to the polymer disc 7 ′.
  • the heat developed in the aluminum disc 6 ′ during the induction or conduction process melts the layer of temporary adhesive 5 ′ which is absorbed by the paper disc 8.
  • the heat developed in the aluminum disc 6 ′ a caused, in a manner well known per se, the welding of the polymer disc 7 ′ on the neck 1 ′ of the container.
  • the plug 2 ′ contains the entire aluminum disc 6 ′.
  • the polymer disc 7 ′ there remains on the neck of the container 1 ′ only a crown of synthetic material and no longer a crown or debris of metal crown as was the case until now .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP91870191A 1990-11-30 1991-11-28 Mehrlappige Deckelschicht Withdrawn EP0488985A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9001143 1990-11-30
BE9001143A BE1004611A3 (fr) 1990-11-30 1990-11-30 Opercule multicouche.

Publications (1)

Publication Number Publication Date
EP0488985A1 true EP0488985A1 (de) 1992-06-03

Family

ID=3885041

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91870191A Withdrawn EP0488985A1 (de) 1990-11-30 1991-11-28 Mehrlappige Deckelschicht

Country Status (2)

Country Link
EP (1) EP0488985A1 (de)
BE (1) BE1004611A3 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5356021A (en) * 1993-09-30 1994-10-18 H-C Industries, Inc. Container closure with multiple liner seals
EP0928746A1 (de) * 1997-12-29 1999-07-14 Alusuisse Technology & Management AG Verbundfolie für einen Membranverschluss
US6382441B1 (en) * 2000-03-22 2002-05-07 Becton, Dickinson And Company Plastic tube and resealable closure having protective collar

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4596338A (en) * 1985-07-08 1986-06-24 Bahjat Yousif Air permeable container cap lining and sealing material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4596338A (en) * 1985-07-08 1986-06-24 Bahjat Yousif Air permeable container cap lining and sealing material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5356021A (en) * 1993-09-30 1994-10-18 H-C Industries, Inc. Container closure with multiple liner seals
EP0928746A1 (de) * 1997-12-29 1999-07-14 Alusuisse Technology & Management AG Verbundfolie für einen Membranverschluss
US6382441B1 (en) * 2000-03-22 2002-05-07 Becton, Dickinson And Company Plastic tube and resealable closure having protective collar
US6837954B2 (en) 2000-03-22 2005-01-04 Becton, Dickinson And Company Method of forming a closure for a fluid collection tube

Also Published As

Publication number Publication date
BE1004611A3 (fr) 1992-12-22

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Effective date: 19921204