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
  • B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
  • B65D51/244—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes provided with oxygen absorbers
• • 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
  • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
  • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
  • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
  • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
  • B65D41/0414—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck
• • 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
  • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
  • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
  • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
  • B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
  • B65D41/045—Discs

Definitions

• the invention relates to a device for capping a container and to a container equipped with such a device.
• the invention takes the opposite view of these approaches by proposing a plug provided with a sealing skirt and which makes it possible to accommodate the presence of oxygen or another gas in its vicinity.
• bottles contain products that are very sensitive to oxygen and that can degrade quickly if the cap lets oxygen in from the ambient air.
• the invention proposes to solve the problem of sealing the closure device by distinguishing gases by their nature and responding to them with solutions adapted to each of them.
• the invention relates to a device for capping a container provided with a neck, this device comprising a cap provided with an internal skirt capable of coming to bear against the internal radial surface of this neck and, at its bottom, a first layer of material impermeable to one or more predetermined gases and a second layer made of a material capable of absorbing one or more predetermined gases, preferably a material capable of absorbing oxygen, characterized in that the first and second layers are arranged with respect to the bottom of the plug, so that one of them covers the other.
• the internal skirt effectively fulfills its role of sealing support against the internal surface of the neck, in particular with regard to sealing against C0 2 , while the combination of the first and second layers makes it possible to absorb the oxygen from the product in the container, the first layer isolating the second layer from the outside, so that the absorbent material does not 03 00794
• one of the layers can cover the other directly or indirectly, that is to say with the interposition of material, in particular material from the bottom of the stopper.
• a closure device can incorporate one or more of the following characteristics:
• the first and second layers extend at least at a part of the bottom located radially inside the sealing skirt.
• the first and second layers are affixed to the internal face of the bottom of the stopper, the second layer covering the first.
• the first layer is formed on an outer face of the stopper bottom, while the second layer is formed on an inner face of the plug, the first 'layer covering the other with interposition of the cap bottom.
• the gas-impermeable barrier can thus consist of a coating external to the plug.
• the second layer is arranged radially inside the skirt. Thus, this second layer does not come into direct contact with the neck and does not risk being crushed or sheared by the latter.
• the first and second layers are formed by different materials.
• the first layer comprises a silica oxide, a varnish or a lacquer, or is produced by metallization.
• the invention finally relates to a container for liquid, for example a plastic bottle, equipped with a closure device as described above.
• a such a container makes it possible to store, for a relatively long period and without risk of alteration, the product that it contains, most particularly a carbonated drink.
• Figure 1 is an axial section of a closure device according to the invention mounted on the neck of a bottle according to the invention
• Figure 3 is a view similar to Figure 1 for a closure device according to a second embodiment of the invention.
• the closure device 1 shown in the figure comprises a closure 2 connected to a tamper-evident band 3 by a breakable part 4.
• the device 1 is designed to be mounted on the neck G of a bottle B, this neck being provided with an external thread G x , while the cap is provided with an internal thread 21 of corresponding shape.
• the bottom of the plug 2 On its internal face 23, that is to say its face facing the inside of the neck G, the bottom 22 is provided with a skirt 24 centered on the axis of symmetry XX 'of the device 1 and having an external bead 25 intended to come into abutment against the internal radial surface G 2 of the neck G.
• An annular rib 26 is formed on the face 23 while being centered on the axis XX '.
• This rib defines a zone Z 2 e in the form of a disc in which are affixed two layers 5 and 6 on the face 23 of the bottom 22.
• the first layer 5 consists of ethylene vinyl alcohol (EVOH) and is deposited on the face 23 by any suitable process.
• the second layer 6 is formed in an oxygen-absorbing material, for example as described in US-A-4, 279, 350.
• the layer 6 can be overmolded in the zone Z 2 6 once the layer 5 has been put in place, which makes it possible to effectively maintain the position of the layer 5.
• it may be, by for example, iron • in powder form, of compounds including iron, such as iron salts, ascorbic acid or cobalt stearate. If the layer 6 is produced in the form of a disc fixed on the bottom 22, it can be produced in glucose oxidase and / or glucose catalase to reduce, according to an "enzymatic" route, the free oxygen present in the neck G .
• the second layer 6 is protected from the oxygen outside the device 1, so that the layer 6 is not likely to be saturated with oxygen, to the point of not being able to effectively absorb any gas evolution coming from the liquid contained in bottle B.
• these layers do not interfere with the neck G and are not likely to be crushed or torn, in particular at the end of screwing or at the start of unscrewing the cap 2.
• the device 101 of this embodiment comprises a plug 102 connected to a strip inviolability 103 by a breakable part 104.
• This device differs from the previous one in that the first layer 105 impermeable to oxygen is formed by a coating affixed to the outer surface 128 of the bottom .122 of the plug 102, while the second layer 106 is affixed against the internal face 123 of this bottom 122.
• the layer 105 thus covers the bottom 122 of plug 102 which itself covers layer 106.
• a skirt 124 provided with a bead 125 bears against the neck G of a bottle B, while the layer 106 can effectively absorb the oxygen present in the neck G, because it is isolated from the external atmosphere both by the skirt 124 and by the layer 105.
• the layers 105 and 106 extend in particular over the entire central zone of the bottom 122, that is to say the part of the bottom located radially inside the skirt 124.
• the coating layer 105 can comprise a silica oxide, a varnish or a lacquer. It can also be produced by metallization.
• Layers 5 and 105 could also be made of polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), ethylene vinyl alcohol (EVOH), polyamide (PA), polyethylene naphthalate (PEN), polyvinyl alcohol ( PVA), polyacrylnitrile acrylate copolymer (PNA), polymethylmethacrylate (PPMA), butadiene copolymer, stryrene, bi-oriented polypropylene (BOPP) or in a mixture based on these products.
• PVC polyvinyl chloride
• PVDC polyvinylidene chloride
• EVOH ethylene vinyl alcohol
• PA polyamide
• PEN polyethylene naphthalate
• PVA polyvinyl alcohol
• PNA polyacrylnitrile acrylate copolymer
• PPMA polymethylmethacrylate
• stryrene bi-oriented polypropylene

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Closures For Containers (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

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Family Applications (1)

Country Status (6)

Cited By (1)

Families Citing this family (12)

Citations (6)

Family Cites Families (8)

• 2002
  • 2002-03-13 FR FR0203135A patent/FR2837173B1/fr not_active Expired - Fee Related
• 2003
  • 2003-03-12 US US10/507,644 patent/US20050173370A1/en not_active Abandoned
  • 2003-03-12 JP JP2003574526A patent/JP2005519817A/ja not_active Withdrawn
  • 2003-03-12 EP EP03727585A patent/EP1483168A1/fr not_active Withdrawn
  • 2003-03-12 WO PCT/FR2003/000794 patent/WO2003076294A1/fr not_active Application Discontinuation
  • 2003-03-12 AU AU2003233374A patent/AU2003233374A1/en not_active Abandoned

Patent Citations (6)

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