EP4037981B1 - Conteneur en plastique remplissable - Google Patents

Conteneur en plastique remplissable Download PDF

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Publication number
EP4037981B1
EP4037981B1 EP20772352.9A EP20772352A EP4037981B1 EP 4037981 B1 EP4037981 B1 EP 4037981B1 EP 20772352 A EP20772352 A EP 20772352A EP 4037981 B1 EP4037981 B1 EP 4037981B1
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EP
European Patent Office
Prior art keywords
neck
plastic container
refillable
support ring
refillable plastic
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.)
Active
Application number
EP20772352.9A
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German (de)
English (en)
Other versions
EP4037981C0 (fr
EP4037981A1 (fr
Inventor
Robert Siegl
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.)
Alpla Werke Alwin Lehner GmbH and Co KG
Original Assignee
Alpla Werke Alwin Lehner GmbH and Co KG
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Publication date
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Publication of EP4037981A1 publication Critical patent/EP4037981A1/fr
Application granted granted Critical
Publication of EP4037981B1 publication Critical patent/EP4037981B1/fr
Publication of EP4037981C0 publication Critical patent/EP4037981C0/fr
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Anticipated expiration legal-status Critical

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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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/023—Neck construction
    • B65D1/0246—Closure retaining means, e.g. beads, screw-threads
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/023—Neck construction
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • 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
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt
    • B65D41/3428—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt the tamper element being integrally connected to the closure by means of bridges

Definitions

  • the invention relates to a refillable plastic container, in particular made of polyethylene terephthalate or polyethylene furanoate, according to the independent patent claims.
  • the containers made of tin or colored sheet metal, glass or ceramic that were common in the past are increasingly being replaced by containers made of plastic.
  • plastic containers have recently been used.
  • the low weight and lower costs certainly play a significant role in this substitution.
  • the use of recyclable plastic materials and the overall more favorable overall energy balance in their production also help to promote the acceptance of plastic containers among users.
  • Plastic containers especially plastic bottles, made of polyethylene terephthalate (PET) and similar materials are usually manufactured using a so-called stretch blow molding process.
  • a preform is produced in an injection molding process in an injection mold.
  • extrusion processes or extrusion blow molding processes have also been proposed for the production of preforms.
  • the preform has a substantially elongated preform body and is designed to be closed at one longitudinal end. There is also usually an injection point resulting from injection molding.
  • At the other end of the preform body is a neck section which is provided with a pouring opening.
  • the neck section already has the later shape of the container neck.
  • the preform body and the neck section are separated from one another by a so-called support ring.
  • the support ring projects radially from the neck wall and is used to transport the preform or the plastic container made from it and to support the preform on the blow molding tool or the plastic container when closing it with a closure cap.
  • the standard "PCO-1881 28mm Standard” discloses a container according to the preamble of claim 1.
  • the preform is removed from the mold and can be processed immediately while still hot in a one-stage stretch blow molding process.
  • a two-stage stretch blow molding process the preform is cooled and temporarily stored on a stretch blow molding device for spatially and/or temporally separate further processing.
  • the preform is then conditioned if necessary, that is, a temperature profile is impressed on the preform. It is then placed in a blow mold of a stretch blow molding device.
  • the preform is finally inflated according to the mold cavity using a gas blown in at excess pressure, usually air, and is additionally stretched axially with a stretching mandrel.
  • An injection blow molding process is also already known in which the stretch blow molding process takes place directly after the preform is injected.
  • the preform remains on the injection core, which also forms a kind of stretching mandrel.
  • the preform is in turn inflated by excess pressure according to the mold cavity of a blow mold, which is placed onto the injection core or vice versa, and is thereby stretched by the stretching mandrel.
  • the finished plastic container is then removed from the mold.
  • Stretch-blown or injection-blown plastic containers can be identified by the injection point originating from the preform, which is usually arranged in the area of the container bottom. At this injection point, the plastic material is only slightly or not at all stretched.
  • plastic containers that are made from stretched preforms
  • plastic containers that are formed from the unstretched preform itself. Examples of this are pressure containers for aerosols and similar filling products.
  • PET polyethylene terephthalate
  • PET has been tried and tested, its chemical, physical and mechanical properties are well known, and it can be easily processed on known systems.
  • the recycling circuits that have been introduced and are constantly being expanded ensure that the majority of PET containers can be collected again after use and reprocessed.
  • plastic containers have also been made from polyethylene furanoate (PEF), which are characterized by their better barrier properties than PET. In terms of mechanical strength, plastic containers made of PET and PEF have very similar properties.
  • polyesters especially PET and PEF
  • alkalis the behavior of polyesters, especially PET and PEF, in conjunction with alkalis is not without problems.
  • Stress cracks in the plastic container can form points of attack for the lye, which can lead to degradation of the plastic over time.
  • a reaction between ester and lye can lead to saponification. This can lead to discoloration of the plastic container and ultimately even failure.
  • the unstretched areas of plastic containers, particularly the neck of a plastic container are particularly susceptible to such stress-induced problems.
  • stretch blowing a preform made of PET or PEF which is usually produced using an injection molding process
  • the neck of the preform is located outside the blow mold and is not stretched during the stretch blow molding process and therefore not strain-hardened.
  • Tensions in the neck of the plastic container can lead to microscopic cracks, which can enlarge when the container is cleaned with alkalis. This can lead to the neck of the plastic container leaking over time or no longer being able to withstand internal pressure in the plastic container, for example caused by carbonated drinks.
  • the tensions in the neck of the plastic container can be of various types. For example, these include thermal voltages that can occur due to the different expansions of the inner and outer walls of the neck of the container. Further stresses can be induced during the production of the plastic container from the preform through the blow nozzle and through the stretching mandrel with which the preform is axially stretched.
  • the object of the present invention is therefore to remedy one or more disadvantages of the plastic containers of the prior art.
  • the prerequisites should be created for a refillable plastic container that allows a larger number of cleaning and refilling operations.
  • a refillable plastic container according to the invention in particular a refillable plastic container made of PET or PEF, has a neck with a neck opening and a container body enclosing a filling volume, which are separated from one another by a substantially radially projecting support ring.
  • the neck of the plastic container has an axial length, measured from an underside of the support ring to a mouth edge bordering the neck opening, which is equal to or less than 17.25 mm.
  • the neck between the underside of the support ring and the mouth edge bordering the neck opening has a minimum wall thickness that is not less than 1.9 mm.
  • the invention proposes optimizations of the neck of the plastic container in order to minimize the stresses that occur in the unstretched area of the container during production.
  • the neck By designing the neck with an overall shorter axial length compared to known necks of disposable containers made of PET or PEF, thermal stresses due to different contractions of the inner wall and outer wall of the neck can be reduced during production, for example in an injection molding process. Due to the overall thicker-walled design The neck also cools down more slowly and evenly during production, which can significantly reduce the formation of tension. Lower tensions during the production of the preform lead to a significantly smaller number of microscopic cracks in the neck of the plastic container. This enables a larger number of cycles of filling, cleaning and refilling of the plastic containers.
  • the neck can be designed with positive engagement elements, in particular threaded sections, which protrude as radial projections from an outer wall of the neck in a neck section which is located between the mouth edge and the support ring.
  • these projections extend over at least 85% of a circumference of the neck.
  • An associated closure cap can be designed, for example, as a twist lock or as a bayonet lock, which has essentially complementary engagement elements.
  • Such a closure cap is assembled by applying pressure and torque.
  • the positive engagement elements extend over at least 85% of the circumference of the neck.
  • closure caps In order to offer the user a visual guarantee of first opening, closure caps, especially screw caps, are provided with a tear-off guarantee band.
  • an abutment is formed on a section of the neck, which lies between an end of the positive engagement elements closer to the support ring and the support ring, which runs at least in some areas and projects essentially radially from the outer wall of the neck.
  • An area of the neck lying between the abutment and the support ring is usually used in the manufacture of the container for the attack of transport elements, such as transport tongs. In order to reduce the tension that occurs in the neck, it proves to be useful if this area has a minimum wall thickness that is not less than 1.9.
  • the neck has an inner wall designed as a conical sealing surface in an area located between the positive engagement elements and the support ring.
  • the sealing surface is thereby displaced axially away from the mouth edge towards the interior of the plastic container and is formed in an area of the neck which is designed with a greater wall thickness. In conjunction with a closure cap with a correspondingly extended sealing cone, this leads to a reduction in the tension in the container neck.
  • a further aspect of the invention therefore relates to a closure cap, in particular a closure cap for use with a plastic container as described here, which has a cover plate and a substantially cylindrical jacket formed thereon with positive engagement elements, in particular threaded elements, which have correspondingly designed positive engagement elements, in particular threaded sections, interact on the neck of the plastic container.
  • a ring-shaped spacer is arranged concentrically to the jacket and protrudes from the cover plate and a sealing lip is arranged at its free end.
  • the spacer and the sealing lip have a maximum axial extent that is equal to or greater than the height of the cylindrical jacket.
  • an inner diameter of the neck measured at the neck opening is smaller than 21.6 mm.
  • the inner diameter in the area of the neck opening is larger than the inner diameter of the neck in the area of the support ring. This also leads to a reduction in stresses during the production of the preform, particularly in the injection molding process.
  • the support ring on the neck of the plastic container has an outside diameter measured over its greatest radial extent that is equal to or smaller than 35 mm.
  • the design of the support ring with an axial thickness of 1.9 mm to 2.5 mm, measured at the transition to an outer wall of the neck also contributes to reducing the stresses.
  • the geometric optimization of the container neck to reduce the stresses that occur during production and assembly can also be supported in a further embodiment variant of the invention by adding suitable additives to the plastic material.
  • suitable additives from the group consisting of terephthalic acid (PTA), isophthalic acid (IPA), monoethylene glycol (MEG), diethylene glycol (DEG), isosorbitol, spiroglycol and naphthalene dicarboxylic acid dimethyl ester (NDC) proves to be expedient.
  • the refillable plastic container can be designed as a preform that is produced in an injection molding process or in an extrusion process.
  • the refillable plastic container is designed as a container which is manufactured in a blow molding process from a preform produced in an injection molding process or in an extrusion process. It is preferably designed as a stretch-blown container.
  • a further variant of the invention provides a refillable plastic container, the neck of which is designed for the assembly of a one-part or multi-part closure cap.
  • the closure cap can be designed as a screw cap or as a bayonet lock.
  • closures that are made from a plastic from the group consisting of polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polyamide (PA), their copolymers, and thermoplastic elastomers (TPE) prove to be advantageous are. Pairing the PET container material with the listed closure materials can also help reduce the occurrence of stress in the neck of the plastic container.
  • a closure cap designed accordingly for use with a refillable plastic container designed according to the invention has a cover plate and a substantially cylindrical jacket formed thereon with positive engagement elements, in particular threaded elements, which interact with correspondingly designed positive engagement elements, in particular threaded sections, on the neck of the plastic container.
  • a ring-shaped spacer is arranged concentrically to the casing and projects from the cover plate.
  • a sealing lip is arranged at the free end of the spacer.
  • the spacer and the sealing lip have a maximum axial extent that is equal to or greater than a maximum distance of the positive engagement elements from the cover plate.
  • the closure cap is designed to cooperate with a conical sealing surface laid in the direction of the support ring into the interior of the neck of the refillable plastic container and therefore has a sealing lip arranged on a spacer.
  • the maximum axial extent of the spacer and the sealing lip can be in some embodiments The invention can even be greater than an axial length of the jacket of the closure cap.
  • the sealing lip is designed to be circumferential and has an approximately trumpet-shaped axial cross section.
  • the free end of the sealing lip which points outwards and in the direction of the cover plate of the closure cap, lies against the inner wall of the neck of the plastic container when the closure cap is in the assembled state.
  • the spring-loaded elasticity of the sealing lip ensures ventilation when the cap is screwed on and ensures a reliable seal when fully screwed on.
  • the sealing lip has a circumferential, approximately olive-shaped sealing bead at its free end, which extends in the direction of an inner wall of the jacket.
  • the sealing bead interacts in a sealing manner with a sealing cone in a thickened area of the neck of the plastic container that is displaced in the direction of the support ring.
  • the sealing lip is designed as a sealing lip that extends counter to the direction in which the spacer projects from the cover plate. When the closure cap is screwed onto the plastic container, this sealing lip is pulled over a corresponding sealing surface arranged inside the neck of the plastic container.
  • the closure cap can have one or more concentric sealing lips in an annular space delimited by the spacer and the jacket, which protrude from the cover plate and, in the assembled state, rest sealingly against the mouth edge bordering the neck opening.
  • the additional sealing lips can rest on the edge of the mouth or encompass it on the inner wall and on the outer wall of the neck of the plastic container.
  • the closure cap can be at the free end of the casing Have a guarantee ring that is connected to the jacket via a number of breakable webs.
  • Figure 1a shows a partially axially sectioned representation of a neck 10 of a plastic container 100.
  • the plastic container 100 has a pouring opening.
  • the pouring opening adjoins the shoulder area, not shown here, and comprises a support ring 30, followed by a neck 10 with a neck opening 11 which is bordered with a mouth edge 12.
  • the neck 10 has an outer wall 14 on which engagement elements 13 are arranged, which in the present case are designed as a thread.
  • the thread is interrupted, but extends over 85% of the circumference of the neck 10.
  • the support ring 30 has a thickness D in the axial direction, i.e. in the direction of the neck opening 11, which is 2.5 mm. Be used to measure this thickness the radii are not taken into account but the theoretical intersection points at which the surfaces meet are taken as a reference.
  • an axial length L between the underside of the support ring 30 and the mouth edge 12 is 17mm.
  • the neck 10 has a wall thickness S, which is greater in the area of the support ring 30 than in the area of the mouth edge 12. In the present case, the wall thickness S in the area of the support ring 30 is 2.5mm and in the area of the mouth edge 12 is 1.5mm. This difference creates a conical sealing surface 16 inside the neck 10.
  • the inner diameter I in the area of the mouth edge 12 is 20.6mm.
  • An abutment 15 is arranged on the outer wall 14 below the engagement elements 13.
  • the Figure 1b shows a partially axially sectioned representation of a neck 10 of a plastic container 100 in one embodiment.
  • This essentially corresponds to the embodiment according to Figure 1a with the difference that the wall thickness S of the neck 10 is shaped differently. In this case, this has a constant thickness of 1.9mm over the entire length of the line.
  • the remaining elements are the same as the corresponding elements of the embodiment from the Figure 1 trained and are therefore not described again.
  • the Figure 2 shows a closure cap 40.
  • the closure cap 40 has a cover plate 41.
  • a jacket 42 is arranged on the cover plate 41, with engagement elements 43 being arranged on an inner wall within the jacket 42.
  • the engagement elements 43 are designed as interrupted threads. The thread extends over 85% of the inner wall of the jacket 42.
  • Arranged concentrically to the jacket 42 is a spacer 44 which projects from the cover plate 41 and extends in the direction of a guarantee ring 47.
  • the guarantee ring 47 is arranged opposite the cover plate 41 at a lower opening in the closure cap 40.
  • the spacer 44 therefore extends in the direction of the container.
  • a sealing lip is arranged on the spacer 44 and extends in the direction of the jacket 42.
  • Concentric sealing lips 46 are arranged in an annular space between the jacket 42 and the spacer 44.
  • the concentric sealing lips 46 are designed to have a mouth edge 12 of a neck 10 (see Figure 1 ) to come into effective connection.
  • the sealing lip 45 is designed to come into operative connection with a sealing surface of a neck 10.
  • the Figure 3 shows a partially axially sectioned representation of the neck 10 according to Figure 1a with a screwed-on closure cap 40.
  • the closure cap 40 according to Figure 3 has, in contrast to the closure cap 40 according to Figure 2 , as sealing lips 45, a sealing bead extending radially outwards.
  • the sealing bead is pressed over the conical sealing surface 16 and pushes onto a sealing surface arranged below the conical sealing surface 16, which is formed on the inner wall of the neck 10.
  • the engagement elements 43 of the closure cap 40 engage with engagement elements 13 of the neck 10.
  • By rotating the closure cap it moves in the axial direction towards the container until the concentric sealing lips 46 of the closure cap 40 rest on the mouth edge 12 of the neck 10 and thereby sealing the inside of the container from its surroundings.
  • the Figure 4 shows a partially axially sectioned representation of the neck 10 according to Figure 1b with a screwed-on closure cap 40.
  • the closure cap 40 is essentially made of the closure cap 40 Figure 2 educated.
  • the outward-facing sealing lip 45 comes into contact with the mouth edge 12 and is bent over so that it is opposite to the direction in which the spacer 44 (see Figure 2 ) extends, extends.
  • the sealing lips 45 bent over in this way are pulled over an inner wall of the neck 10, which provides a sealing surface.
  • the further process corresponds to that of Figure 3 was described.
  • concentric sealing lips 46 appear in an annular space between the spacer 44 and the jacket 42 (see Figure 2 ) are arranged in contact with the mouth edge 12 and seal it from its surroundings.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Closures For Containers (AREA)

Claims (21)

  1. Contenant en plastique rechargeable (100), en particulier en PET ou en PEF, avec un col (10) réalisé de manière sensiblement cylindrique avec une ouverture de col (11) et un corps de contenant (20) renfermant un volume de remplissage, qui sont séparés l'un de l'autre par une bague de support (30) dépassant sensiblement radialement, caractérisé en ce que le col (10) présente une longueur axiale (L) mesurée depuis un côté inférieur de la bague de support (30) jusqu'à un bord d'embouchure (12) encadrant l'ouverture de col (11), laquelle est inférieure ou égale à 17,25 mm, et que le col (10) présente entre le côté inférieur de la bague de support (30) jusqu'au bord d'embouchure (12) encadrant l'ouverture de col (11) une épaisseur de paroi minimale (S), qui n'est pas en dessous de 1,9 mm.
  2. Contenant en plastique rechargeable (100) selon la revendication 1, caractérisé en ce que le col (10) est réalisé avec des éléments de prise à complémentarité de forme (13), en particulier des sections de filetage, qui dépassent d'une paroi extérieure (14) du col (10) en tant que parties radiales faisant saillie dans une section de col, qui est placée entre le bord d'embouchure (12) et une bague de support (30), et s'étendent sur au moins 85 % d'une périphérie du col (10).
  3. Contenant en plastique rechargeable (100) selon la revendication 2, caractérisé en ce qu'une contre-butée (15) au moins par endroits périphérique, dépassant sensiblement radialement de la paroi extérieure du col est réalisée sur une section du col (10), qui se situe entre l'extrémité des éléments de prise à complémentarité de forme (13) la plus proche de la bague de support (30) et la bague de support (30).
  4. Contenant en plastique rechargeable (100) selon l'une quelconque des revendications 2 ou 3, caractérisé en ce que le col (10) possède une paroi intérieure réalisée en tant que surface étanche conique (16) dans une zone placée entre les éléments de prise à complémentarité de forme (13) et la bague de support (30).
  5. Contenant en plastique rechargeable (100) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un diamètre intérieur (I) du col (10) mesuré sur l'ouverture de col (11) est inférieur à 21,6 mm, dans lequel le diamètre intérieur (I) dans la zone de l'ouverture de col (11) est supérieur au diamètre intérieur du col (10) dans la zone de la bague de support (30).
  6. Contenant en plastique rechargeable (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que la bague de support (30) présente un diamètre extérieur (R) mesuré sur son extension radiale la plus grande, qui est inférieur ou égal à 35 mm.
  7. Contenant en plastique rechargeable (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que la bague de support (30) présente une épaisseur axiale mesurée sur la transition menant à une paroi extérieure (14) du col, qui va de 1,9 mm à 2,5 mm.
  8. Contenant en plastique rechargeable (100) selon l'une quelconque des revendications précédentes 1 à 7, caractérisé en ce que le col (10) présente une épaisseur de paroi de même épaisseur entre la bague de support (30) et le bord d'embouchure (12).
  9. Contenant en plastique rechargeable (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que le matériau en plastique est un polymère, lequel contient au moins dans la zone du col des fractions issues du groupe constitué d'acide téréphtalique (PTA), d'acide isophtalique (IPA), de monoéthylèneglycol (MEG), de diéthylèneglycol (DEG), d'isosorbitol, de spiroglycol et d'ester diméthylique d'acide dicarboxilique de naphtalène (NDC) .
  10. Contenant en plastique rechargeable (100) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est réalisé en tant qu'un contenant en plastique (100), qui est produit dans un procédé de soufflage à partir d'une préforme fabriquée dans un procédé de moulage par injection ou dans un procédé de formage par fluage.
  11. Contenant en plastique rechargeable selon la revendication 10, caractérisé en ce qu'il est réalisé en tant qu'un contenant en plastique (100) étiré soufflé.
  12. Contenant en plastique rechargeable (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que le col (10) est réalisé pour le montage d'un bouchon de fermeture (40) réalisé en une ou en plusieurs parties.
  13. Contenant en plastique rechargeable (100) selon la revendication 12, caractérisé en ce que le bouchon de fermeture (40) est réalisé en tant qu'une fermeture rotative ou en tant qu'une fermeture à baïonnette.
  14. Contenant en plastique rechargeable (100) selon la revendication 12 ou 13, caractérisé en ce que le bouchon de fermeture (40) est produit à partir d'un plastique issu du groupe constitué de polyéthylène (PE), de polypropylène (PP), de polytéréphtalate d'éthylène (PET), de polyamide (PA), de leurs copolymères, et d'élastomères thermoplastiques (TPE).
  15. Contenant en plastique rechargeable (100) selon l'une quelconque des revendications 8 à 14, caractérisé en ce que le bouchon de fermeture (40) présente une plaque de recouvrement (41) et une enveloppe (42) formée sur celle-ci réalisée de manière sensiblement cylindrique avec des éléments de prise à complémentarité de forme (43), en particulier des éléments de filetage, qui coopèrent avec des éléments de prise à complémentarité de forme (13) réalisés de manière correspondante, en particulier des sections de filetage, sur le col (10) du contenant en plastique (100), dans lequel est disposé à l'intérieur d'un espace entouré par l'enveloppe (42) un écarteur (44) s'étendant en périphérie avec une forme annulaire, disposé de manière concentrique par rapport à l'enveloppe (42), lequel dépasse de la plaque de recouvrement (41) et sur l'extrémité libre duquel est disposée une lèvre d'étanchéité (45).
  16. Contenant en plastique rechargeable (100) selon l'une quelconque des revendications 1 à 7 et 9 à 14, caractérisé en ce que le bouchon de fermeture (40) présente une plaque de recouvrement (41) et une enveloppe (42) formée sur celle-ci réalisée de manière sensiblement cylindrique avec des éléments de prise à complémentarité de forme (43), en particulier des éléments de prise, qui coopèrent avec des éléments de prise à complémentarité de forme (13) réalisés de manière correspondante, en particulier des sections de filetage, sur le col (10) du contenant en plastique (100), dans lequel est disposé à l'intérieur d'un espace entouré par l'enveloppe (42) un écarteur (44) s'étendant en périphérie avec une forme annulaire, disposé de manière concentrique par rapport à l'enveloppe (42), qui dépasse de la plaque de recouvrement (41) et sur l'extrémité libre duquel une lèvre d'étanchéité (45) est disposée, dans lequel l'écarteur (44) et la lèvre d'étanchéité (45) présentent une extension axiale maximale, qui est supérieure ou égale à la hauteur de l'enveloppe (42) cylindrique.
  17. Contenant en plastique rechargeable (100) selon l'une quelconque des revendications 15 à 16, caractérisé en ce que la lèvre d'étanchéité (45) est réalisée de manière à s'étendre en périphérie et présente une section transversale axiale s'étendant à peu près en forme de trompette.
  18. Contenant en plastique rechargeable selon la revendication 17, caractérisé en ce que la lèvre étanche (45) présente sur son extrémité libre un bourrelet d'étanchéité s'étendant en périphérie, réalisé de préférence à peu près en forme d'olive, qui s'étend en direction de l'enveloppe (42).
  19. Contenant en plastique rechargeable (100) selon l'une quelconque des revendications 15 à 18, caractérisé en ce que la lèvre d'étanchéité (45) repose dans l'état monté de manière à assurer l'étanchéité sur un cône d'étanchéité (16) réalisé dans le col (10).
  20. Contenant en plastique rechargeable (100) selon l'une quelconque des revendications 15 à 19, caractérisé en ce que sont disposées dans un espace annulaire délimité par l'écarteur (44) et l'enveloppe (42) une ou plusieurs lèvres d'étanchéité (46) concentriques, qui dépassent de la plaque de recouvrement (41) et reposent de manière à assurer l'étanchéité dans l'état monté sur le bord d'embouchure (12) encadrant l'ouverture de col (11).
  21. Contenant en plastique rechargeable (100) selon l'une quelconque des revendications 15 à 20, caractérisé en ce qu'une extrémité libre de l'enveloppe (42) est reliée à une bague de garantie (47) par l'intermédiaire d'un nombre d'entretoises cassables.
EP20772352.9A 2019-10-02 2020-09-23 Conteneur en plastique remplissable Active EP4037981B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01248/19A CH716662A1 (de) 2019-10-02 2019-10-02 Wiederbefüllbarer Kunststoffbehälter mit einem Hals mit einer Halsöffnung und einen ein Füllvolumen umschliessenden Behälterkörper.
PCT/EP2020/076600 WO2021063771A1 (fr) 2019-10-02 2020-09-23 Contenant en plastique rechargeable

Publications (3)

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EP4037981A1 EP4037981A1 (fr) 2022-08-10
EP4037981B1 true EP4037981B1 (fr) 2024-01-24
EP4037981C0 EP4037981C0 (fr) 2024-01-24

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EP20772352.9A Active EP4037981B1 (fr) 2019-10-02 2020-09-23 Conteneur en plastique remplissable

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US (1) US20220371764A1 (fr)
EP (1) EP4037981B1 (fr)
CN (1) CN114531868A (fr)
BR (1) BR112022005270A2 (fr)
CH (1) CH716662A1 (fr)
ES (1) ES2975113T3 (fr)
MX (1) MX2022003423A (fr)
PL (1) PL4037981T3 (fr)
WO (1) WO2021063771A1 (fr)

Citations (3)

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JP2008189721A (ja) * 2007-02-01 2008-08-21 Mitsubishi Chemicals Corp ポリエステル成形品及びその製造方法
WO2016137701A1 (fr) * 2015-02-27 2016-09-01 Dr Pepper/Seven Up, Inc. Préformes à rapport d'étirage élevé et récipients et procédés associés
JP2017013798A (ja) * 2015-06-26 2017-01-19 大日本印刷株式会社 充填体の製造方法、プラスチックボトル、充填体、及び充填体の製造装置

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WO1997033802A1 (fr) * 1996-03-12 1997-09-18 Jeong Min Lee Capsule de bouteille en resine synthetique
US5888598A (en) * 1996-07-23 1999-03-30 The Coca-Cola Company Preform and bottle using pet/pen blends and copolymers
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US5954215A (en) * 1996-12-11 1999-09-21 James A. Schwartz Leak-proof container
EP1092639A1 (fr) * 1999-10-14 2001-04-18 Crown Cork & Seal Technologies Corporation Capsule en matière plastique
EP2123570A4 (fr) * 2007-03-22 2016-03-09 Toyo Seikan Kaisha Ltd Capuchon en matière plastique doté d'une étiquette ci, et procédé de fixation de l'étiquette ci sur le capuchon
CH706889A2 (de) * 2012-09-10 2014-03-14 Alpla Werke Preform zur Herstellung von Kunststoffbehältern in einem Streckblasverfahren.
EP2762415B1 (fr) * 2013-01-30 2016-10-19 Plastipak BAWT S.à.r.l. Ensemble comprenant un récipient ou une préforme en plastique à large col avec embout buccal renforcé et fermeture vissable
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JP2008189721A (ja) * 2007-02-01 2008-08-21 Mitsubishi Chemicals Corp ポリエステル成形品及びその製造方法
WO2016137701A1 (fr) * 2015-02-27 2016-09-01 Dr Pepper/Seven Up, Inc. Préformes à rapport d'étirage élevé et récipients et procédés associés
JP2017013798A (ja) * 2015-06-26 2017-01-19 大日本印刷株式会社 充填体の製造方法、プラスチックボトル、充填体、及び充填体の製造装置

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Publication number Publication date
EP4037981C0 (fr) 2024-01-24
BR112022005270A2 (pt) 2022-06-14
EP4037981A1 (fr) 2022-08-10
WO2021063771A1 (fr) 2021-04-08
PL4037981T3 (pl) 2024-04-15
ES2975113T3 (es) 2024-07-03
US20220371764A1 (en) 2022-11-24
MX2022003423A (es) 2022-04-18
CN114531868A (zh) 2022-05-24
CH716662A1 (de) 2021-04-15

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