EP2193086A2 - Flexible transport container and production method thereof - Google Patents

Flexible transport container and production method thereof

Info

Publication number
EP2193086A2
EP2193086A2 EP08805564A EP08805564A EP2193086A2 EP 2193086 A2 EP2193086 A2 EP 2193086A2 EP 08805564 A EP08805564 A EP 08805564A EP 08805564 A EP08805564 A EP 08805564A EP 2193086 A2 EP2193086 A2 EP 2193086A2
Authority
EP
European Patent Office
Prior art keywords
inner bag
sheath
bag
bags
door
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
EP08805564A
Other languages
German (de)
French (fr)
Other versions
EP2193086B1 (en
Inventor
Stéphanie Armau
Cedric Lambert
Mathieu Labedan
Bernard Saint Martin
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.)
Sartorius Stedim Aseptics SAS
Original Assignee
Sartorius Stedim Aseptics SAS
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 Sartorius Stedim Aseptics SAS filed Critical Sartorius Stedim Aseptics SAS
Publication of EP2193086A2 publication Critical patent/EP2193086A2/en
Application granted granted Critical
Publication of EP2193086B1 publication Critical patent/EP2193086B1/en
Active legal-status Critical Current
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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5866—Integral spouts

Definitions

  • the invention relates to a flexible, practical disposable container for sterile applications, adapted to be used in particular for transfers of products or small equipment such as piston seals or bottle caps and a method of manufacture of such a flexible container.
  • these single-use enclosures also called single-use containers, generally consist of the combination of a rigid door (or cover) and a flexible plastic bag (or bag), most often transparent.
  • Such single-use containers can be used to transfer all kinds of products, liquid, solid or powder, to more massive speakers (or even from them).
  • these single-use containers When these single-use containers are intended for the transfer of products or small equipment, they may also comprise a second door, of the same type as the first, so as to allow the entry of products or equipment by one of the doors, and the exit of the products or materials by the other of these doors.
  • such containers allow the application of a treatment products or materials contained therein, for example a sterilization treatment.
  • This sterilization can be performed by steam, by gamma or beta radiation.
  • Such sterilization can be especially provided when the containers are used for the transfer of small equipment, such as piston seals, plugs, needle shields, etc. which are intended to be in direct contact with injectables.
  • the films constitute not only barriers to microorganisms but also barriers to water vapor (especially in the case of lyophilizates) and so on. It should be noted that, by way of example, these controls are not satisfied when the films are made of a thin-fiber material made of high-density polyethylene known under the trademark "TYVEK” ® from DUPONT, allowing for sterilization with steam.
  • TYVEK high-density polyethylene
  • the controls on the manufacturing steps are more severe.
  • the welds are no longer simply visually inspected, but also undergo sealing tests, methylene blue for example, pressure resistance tests, elongation tests, etc.
  • any intervention is necessarily a source of contamination, reducing the quality of the sheath in question. It follows that the mounting of one or more doors in a sheath initially having a high level of cleanliness in principle implies a deterioration of this level of cleanliness.
  • the object of the invention is to obtain, with a high level of cleanliness, a flexible single-use container provided with two access doors which are in principle only used, intended respectively for an inlet and an outlet of products or materials, while allowing the application of treatments such as sterilization treatment.
  • the invention proposes for this purpose a flexible transfer container comprising an inner bag formed of a flat sleeve closed at one end and whose other end is folded towards the first end, this inner bag being included in an outer bag formed a sheath provided with a first access door passing through the wall of the two bags, near the closed end of the inner bag and a second access door passing through only the wall of the outer bag, opposite a portion of the folded end of the inner bag.
  • the container of the invention comprises an inner bag which houses the products (or materials), and an outer bag in which the inner bag is included.
  • the folded end of the inner bag is shaped trompe, narrower than the rest of the inner bag, which facilitates the release of products or materials contained in the inner bag, the inner bag has a width at most equal to that of the outer bag, which allows the inner bag to be completely filled (if necessary) inside the outer bag,
  • the two bags are connected near the first closed end of the inner bag, thus close to the first door, which contributes to relieving the load borne by the connection ensured between the door and the walls of the two bags,
  • the two bags are connected by welding, which corresponds to a well known connection mode, respecting the cleanliness and sealing criteria, in particular,
  • the two bags are connected near the folded end of the inner bag, which favors holding the second end in a folded configuration when filling the inner bag,
  • the access doors are single-use doors, which helps to ensure that the container can not be used a second time, inadvertently,
  • the inner and outer bags are made of different materials, one of which has a particulate holding capacity and the other has mechanical protection properties, which makes it possible to distribute between the two bags the various functions required of the container.
  • the invention furthermore proposes a method of manufacturing such a container, namely a method of manufacturing a container of the aforementioned type, according to which a first flat duct is produced, leaving there, near a first end. , a hole passing through a single wall of this sheath and by folding the other end, a ring is slid inside this sheath from the first end so as to pass through this hole, a second sheath is also made in which two holes are made, is engaged in one of the holes a first access door and another door is engaged in the other hole, the first door being, after introduction of the inner bag into the outer bag, connected by snapping to the ring while the second door is facing the folded end of the first sheath.
  • This method has preferred features, possibly combined, analogous to those set forth above with respect to the container; in particular :
  • the two sheaths are connected near at least one end of the first sheath
  • the two sheaths are made of two materials, one of which has a particulate holding capacity and the other has mechanical protection properties.
  • FIG. 1 is a perspective view of a sheath adapted to form the inner bag of a container according to the invention
  • Figure 2 is a partial view showing a portion receiving a ring to be assembled to an access door
  • Figure 3 is a view of the sheath forming the outer bag 4 is a partial sectional view of the container when assembling a door to the ring
  • FIG. 5 is a top view of the complete container.
  • Figures 1 to 5 show steps for manufacturing a container according to the invention: this container, noted 1 as a whole, comprises an inner bag 10, completely included in an outer bag 20.
  • the inner bag 10 is made from a flexible sheath 11 of completely flattened shape (its wall thus forms two superposed layers and in contact with one another so as to minimize the internal volume of this sheath), which is sectioned so as to have first and second ends.
  • One of the ends, noted 12, is left intact while the other end is here modified, by shrinking, for example by welding since the outside, so as to form a horn, noted 13, of smaller section than the other end.
  • a hole 14 is formed in the upper layer of the wall of the inner bag, near the first end, for example using a punch (see Figure 1).
  • a rigid ring 15 is then (see FIG. 2) slid into the sheath from the first end 12, until it is fitted into the hole 14.
  • This ring is for example made of a rigid plastic material, obtained by injection into conditions of cleanliness.
  • this setting operation of the ring is the only one that is likely to allow to degrade the cleanliness of the interior of the inner bag since it involves opening the sheath between the end 12 and the hole 14 (this action to open the sheath is exaggerated in Figure 2, by analogy with Figure 1).
  • this action to open the sheath is exaggerated in Figure 2, by analogy with Figure 1).
  • such a degradation is insignificant since this preparation is carried out in clean room.
  • the outer bag 20 is formed of a sheath, in practice slightly wider than the sheath 11, so as to allow easy introduction of the sheath 11.
  • This outer bag 20 is here obtained by simply cutting a flexible tube, and its two ends 21 and 22 are here open (see Figure 3).
  • This external bag has two holes, one of which, 23, is adapted to come opposite the hole 14 of the inner bag, and comprises an access door 25, cooperating with a hoop 24 cooperating with the access door so as to sandwich the periphery of the hole 23.
  • This door 25 is adapted to cooperate, here by snapping, with the rigid ring 15 (see below with reference to Figure 4) and thus provide a connection between the two bags.
  • the other hole 26, intended to come opposite the horn, is provided with an access door 27, in practice identical to the access door 25.
  • access doors 25 and 27 are advantageously disposable, as for example described in the document EP-0 688 020 cited above. It will be understood that, by the concept of access door, here means the combination of a fixed flange with respect to at least one of the bags and a movable shutter adapted to seal, or not, the formed opening in the flange.
  • the first access door 25 is for loading products or small equipment while the second access door 27 is intended for unloading these products or small equipment, via the horn.
  • This outer bag can be prepared in less clean conditions than the inner bag.
  • the container manufacturer can then introduce the inner bag, after folding the trunk, dragging the assembly and folded; the door 25 is then snapped onto the rigid ring 15 (see Figures 4 and 5).
  • the mounting of the two doors is carried out after introduction of the inner bag into the outer bag, it will be noted that the fact of not having, after the sliding of the inner bag in the outer bag, to connect by snapping the first door to the rigid ring has the advantage of minimizing the risk of degradation of the inner bag due to its assembly to the outer bag.
  • the material constituting the internal bag can be made of a material already validated for its qualities of compatibility with the products that are intended to be introduced while the material constituting the outer bag can be chosen for its ability to serve barrier, its resistance to vacuum, its impermeability to oxygen, steam, etc. ; it may especially be a multilayer material.
  • the inner bag is made of a polyethylene film of high degree of cleanliness, with a thickness of the order of 80 to 120 microns while the outer bag can be made of a polyethylene-polyamide multilayer. polyethylene of thickness substantially equal to about 100 microns.
  • the inner bag 10 is in practice longer than the outer bag 20, which makes it possible to fold the trunk while allowing the portion of maximum width of this inner bag to be only slightly shorter than the outer bag (it can be seen in the figure 5 that the portion of maximum width of the inner bag occupies about three quarters of the length of the outer bag and has a trapezoidal portion transition to the horn which is almost completely located after the fold of the inner bag.
  • trunk that passes under this door and pulls it outward, to unfold and allow the exit of the products or materials to the outside, for example inside another enclosure to a port which the access door 27 has been fixed.
  • the form of trunk allows a good flow of products when they are liquid or powdery or when the materials are very small parts.
  • section of the horn is preferably slightly less than that of the access door so as to promote the output of products and materials.
  • the two bags may be provided to secure the two bags by an external weld along the dotted line 30 near the left openings of the two bags, which prevents the inner bag is the only one to bear the burden of the products or materials to be transferred or processed. It can also be provided to secure the two bags by an external weld along the dotted line 31 near the folded end of the inner bag, which promotes the retention in the folded position of the inner bag during its filling by the door 25. It can of course be expected that there will be welds near each end of the outer bag, so as to avoid any significant entry of contamination between the two inner and outer bags.
  • the trunk has a length representing about one quarter of the length of the set of two bags.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
  • Making Paper Articles (AREA)

Abstract

The container (1) has an internal compartment (10) formed of flat sheath. The sheath has a horn shaped end (13) folded towards a closed end (12). The compartment is placed in an external compartment (20) formed of another sheath. The latter sheath is equipped with access doors (25, 27) e.g. disposable access doors, near the closed end and with respect to a portion of the folded end, respectively. The door (25) crosses walls of the compartments. The door (27) only crosses the wall of the external compartment. An independent claim is also included for a method for fabricating a container.

Description

CONTENEUR SOUPLE DE TRANSFERT ET PROCÉDÉ DE FABRICATION FLEXIBLE TRANSFER CONTAINER AND MANUFACTURING METHOD
L'invention concerne un conteneur souple, en- pratique à usage unique pour applications stériles, adapté à être en particulier utilisé pour des transferts de produits ou de petits matériels tels que des joints de piston ou des bouchons de flacons ainsi qu'un procédé de fabrication d'un tel conteneur souple.The invention relates to a flexible, practical disposable container for sterile applications, adapted to be used in particular for transfers of products or small equipment such as piston seals or bottle caps and a method of manufacture of such a flexible container.
On connaît, d'après le document FR - 2 721 289 (ou EP - 0 688 020, ou US - 5 853 207), un dispositif de jonction étanche entre deux enceintes isolées d'un milieu extérieur ainsi qu'une enceinte à usage unique adaptée à être mise en œuvre dans un tel dispositif. Une telle enceinte à usage unique est en principe mobile, tandis que l'autre enceinte peut être une enceinte plus grande et plus lourde, par exemple une enceinte de stérilisation ou un réacteur. Ces enceintes sont chacune munies d'une ouverture munie d'une bride normalement obturée par une porte, et la jonction étanche entre ces enceintes met en œuvre la manœuvre conjointe des deux portes. Ces deux portes sont de préférence à usage unique.It is known from document FR-2 721 289 (or EP-0 688 020, or US Pat. No. 5,853,207), a device for sealing junction between two insulated enclosures of an external medium as well as an enclosure for use unique adapted to be implemented in such a device. Such a disposable enclosure is in principle mobile, while the other enclosure may be a larger and heavier enclosure, for example a sterilization chamber or a reactor. These enclosures are each provided with an opening provided with a flange normally closed by a door, and the sealed junction between these speakers implements the joint operation of the two doors. These two doors are preferably for single use.
Pour des raisons pratiques, ces enceintes à usage unique, aussi appelées conteneurs à usage unique, sont généralement constituées de la combinaison d'une porte (ou couvercle) rigide et d'une poche (ou sac) en matière plastique souple, le plus souvent transparente. De tels conteneurs à usage unique peuvent servir à transférer toutes sortes de produits, liquides, solides ou pulvérulents, vers des enceintes plus massives (voire à partir de celles-ci).For practical reasons, these single-use enclosures, also called single-use containers, generally consist of the combination of a rigid door (or cover) and a flexible plastic bag (or bag), most often transparent. Such single-use containers can be used to transfer all kinds of products, liquid, solid or powder, to more massive speakers (or even from them).
Lorsque ces conteneurs à usage unique sont destinés à un transfert de produits ou de petits matériels, ils peuvent comporter en outre une seconde porte, du même type que la première, de manière à permettre l'entrée de produits ou matériels par l'une des portes, et la sortie des produits ou matériels par l'autre de ces portes.When these single-use containers are intended for the transfer of products or small equipment, they may also comprise a second door, of the same type as the first, so as to allow the entry of products or equipment by one of the doors, and the exit of the products or materials by the other of these doors.
Le cas échéant, de tels conteneurs permettent l'application d'un traitement aux produits ou matériels qui y sont contenus, par exemple un traitement de stérilisation. Cette stérilisation peut être effectuée par vapeur, par rayonnement gamma ou béta. Une telle stérilisation peut être notamment prévue lorsque les conteneurs servent au transfert de petits matériels, tels que des joints de piston, des bouchons, des protège-aiguilles, etc. qui sont destinés à être en contact direct avec des produits injectables.Where appropriate, such containers allow the application of a treatment products or materials contained therein, for example a sterilization treatment. This sterilization can be performed by steam, by gamma or beta radiation. Such sterilization can be especially provided when the containers are used for the transfer of small equipment, such as piston seals, plugs, needle shields, etc. which are intended to be in direct contact with injectables.
Les exigences concernant de tels conteneurs ont d'abord porté sur leur résistance, leur aptitude à la stérilisation (à la vapeur ou rayonnement), et leur propreté. Il n'y avait pratiquement pas de tests sur les conteneurs (ou sachets) souples.The requirements for such containers first of all relate to their strength, sterilization (vapor or radiation), and cleanliness. There was virtually no testing of flexible containers (or pouches).
Petit à petit les exigences se sont renforcées et des contrôles sont désormais conduits de manière de plus en plus rigoureuse sur ces conteneurs souples. C'est ainsi qu'on peut désormais procéder à des contrôles du niveau particulaire, et/ou des endotoxines. Par ailleurs, la notion d'étanchéité, généralement relative (par rapport aux gaz, à la vapeur d'eau, etc.) a pris de l'importance.Gradually, the requirements have been reinforced and controls are now being conducted more and more rigorously on these flexible containers. Thus, it is now possible to carry out particle level and / or endotoxin controls. In addition, the notion of tightness, which is generally relative (with respect to gases, water vapor, etc.), has gained importance.
C'est ainsi, par exemple, que les utilisateurs souhaitent couramment procéder à des contrôles de l'intégrité des films constituant la partie souple des conteneurs. En effet, il est devenu souhaitable que les films ne constituent par uniquement des barrières aux microorganismes mais aussi des barrières à la vapeur d'eau (notamment dans le cas des lyophilisats) etc. Il est à noter que, à titre d'exemple, ces contrôles ne sont pas satisfaits lorsque les films sont en un matériau à base de fines fibres en polyéthylène à haute densité connu sous la marque « TYVEK » ® de DUPONT, permettant des stérilisations à la vapeur.Thus, for example, users commonly wish to carry out integrity checks of the films constituting the flexible part of the containers. Indeed, it has become desirable that the films constitute not only barriers to microorganisms but also barriers to water vapor (especially in the case of lyophilizates) and so on. It should be noted that, by way of example, these controls are not satisfied when the films are made of a thin-fiber material made of high-density polyethylene known under the trademark "TYVEK" ® from DUPONT, allowing for sterilization with steam.
Par ailleurs, les contrôles sur les étapes de fabrication sont de plus sévères. Ainsi, notamment, les soudures ne sont plus simplement contrôlées visuellement, mais subissent également des tests d'étanchéité, au bleu de méthylène par exemple, des tests de résistance à la pression, des tests d'allongement, etc.In addition, the controls on the manufacturing steps are more severe. Thus, in particular, the welds are no longer simply visually inspected, but also undergo sealing tests, methylene blue for example, pressure resistance tests, elongation tests, etc.
C'est pourquoi les fabricants de films plastiques sont tous amenés à travailler, pour la fabrication de feuilles ou de gaines pour conteneurs, avec des niveaux de propreté qui ne cessent de s'améliorer. Ainsi, il est aisé de définir la fabrication, à partir d'une gaine extrudée, de sacs souples simples dont le volume intérieur est propre : il suffit, après extrusion du tube, de maintenir la gaine à plat et de la souder sans avoir à la manipuler ou à l'entrouvrir.This is why plastic film manufacturers are all brought to work, for the production of sheets or sheaths for containers, with levels of cleanliness that are constantly improving. Thus, it is easy to define the manufacture, from an extruded sheath, of simple flexible bags whose interior volume is clean: it is sufficient, after extrusion of the tube, to keep the duct flat and weld without having to manipulate or open it.
Pour la fabrication de conteneurs plus élaborés, comportant des portes d'accès, telles que des portes à usage unique du type précité, on cherche à utiliser le principe précité, en y adaptant de telles portes, tout en obtenant le même niveau de qualité qu'avec des sacs simples.For the manufacture of more elaborate containers, including access doors, such as single-use doors of the aforementioned type, it seeks to use the aforementioned principle, by adapting such doors, while achieving the same level of quality that 'with simple bags.
Pourtant, toute intervention, qu'elle soit humaine ou non, est nécessairement une source de contamination, diminuant la qualité de la gaine en cause. Il en découle que le montage d'une ou plusieurs portes dans une gaine présentant initialement un haut niveau de propreté implique en principe une détérioration de ce niveau de propreté.However, any intervention, whether human or not, is necessarily a source of contamination, reducing the quality of the sheath in question. It follows that the mounting of one or more doors in a sheath initially having a high level of cleanliness in principle implies a deterioration of this level of cleanliness.
L'invention a pour objet de permettre l'obtention, avec un haut niveau de propreté, d'un conteneur souple à usage unique muni de deux portes d'accès à usage en principe unique, respectivement destinées à une entrée et à une sortie de produits ou de matériels, tout en permettant l'application de traitements tels qu'un traitement de stérilisation.The object of the invention is to obtain, with a high level of cleanliness, a flexible single-use container provided with two access doors which are in principle only used, intended respectively for an inlet and an outlet of products or materials, while allowing the application of treatments such as sterilization treatment.
L'invention propose à cet effet un conteneur souple de transfert comportant un sac interne formé d'une gaine à plat fermée à une extrémité et dont l'autre extrémité est repliée vers la première extrémité, ce sac interne étant inclus dans un sac externe formé d'une gaine munie d'une première porte d'accès traversant la paroi des deux sacs, près de l'extrémité fermée du sac interne et d'une seconde porte d'accès traversant uniquement la paroi du sac externe, en regard d'une portion de l'extrémité repliée du sac interne.The invention proposes for this purpose a flexible transfer container comprising an inner bag formed of a flat sleeve closed at one end and whose other end is folded towards the first end, this inner bag being included in an outer bag formed a sheath provided with a first access door passing through the wall of the two bags, near the closed end of the inner bag and a second access door passing through only the wall of the outer bag, opposite a portion of the folded end of the inner bag.
En d'autres termes, le conteneur de l'invention comporte un sac interne qui abrite les produits (ou matériels), et un sac externe dans lequel le sac interne est inclus.In other words, the container of the invention comprises an inner bag which houses the products (or materials), and an outer bag in which the inner bag is included.
Selon des caractéristiques préférées de l'invention, éventuellement combinées :According to preferred features of the invention, optionally combined:
- l'extrémité repliée du sac interne est conformée en trompe, plus étroite que le reste du sac interne, ce qui facilite la sortie des produits ou matériels contenus dans le sac interne, - le sac interne a une largeur au plus égale à celle du sac externe, ce qui permet que le sac interne puisse être complètement rempli (si nécessaire), à l'intérieur du sac externe,- The folded end of the inner bag is shaped trompe, narrower than the rest of the inner bag, which facilitates the release of products or materials contained in the inner bag, the inner bag has a width at most equal to that of the outer bag, which allows the inner bag to be completely filled (if necessary) inside the outer bag,
- les deux sacs sont reliés près de la première extrémité fermée du sac interne, donc près de la première porte, ce qui contribue à soulager la charge supportée par la liaison assurée entre la porte et les parois des deux sacs,the two bags are connected near the first closed end of the inner bag, thus close to the first door, which contributes to relieving the load borne by the connection ensured between the door and the walls of the two bags,
- les deux sacs sont reliés par soudure, ce qui correspond à un mode de liaison bien connu, respectant les critères de propreté et d'étanchéité, notamment,the two bags are connected by welding, which corresponds to a well known connection mode, respecting the cleanliness and sealing criteria, in particular,
- les deux sacs sont reliés près de l'extrémité repliée du sac interne, ce qui favorise le maintien de la seconde extrémité en configuration repliée lors du remplissage du sac interne,the two bags are connected near the folded end of the inner bag, which favors holding the second end in a folded configuration when filling the inner bag,
- les portes d'accès sont des portes à usage unique, ce qui contribue à garantir que le conteneur ne peut pas être utilisé une seconde fois, par inadvertance,- the access doors are single-use doors, which helps to ensure that the container can not be used a second time, inadvertently,
- les sacs interne et externe sont réalisés en des matériaux différents dont l'un a une capacité de retenue particulaire et l'autre a des propriétés de protection mécanique, ce qui permet de répartir entre les deux sacs les diverses fonctions demandées au conteneur.the inner and outer bags are made of different materials, one of which has a particulate holding capacity and the other has mechanical protection properties, which makes it possible to distribute between the two bags the various functions required of the container.
L'invention propose en outre un procédé de fabrication d'un tel conteneur, à savoir un procédé de fabrication d'un conteneur du type précité, selon lequel on réalise une première gaine à plat, en y ménageant, près d'une première extrémité, un trou traversant une seule paroi de cette gaine et en repliant l'autre extrémité, on glisse une bague à l'intérieur de cette gaine à partir de la première extrémité en sorte de traverser ce trou, on réalise par ailleurs une seconde gaine dans laquelle on réalise deux trous, on engage dans l'un des trous une première porte d'accès et on engage une autre porte d'accès dans l'autre trou, la première porte étant, après introduction du sac interne dans le sac externe, reliée par encliquetage à la bague tandis que la seconde porte est en regard de l'extrémité repliée de la première gaine. Ce procédé admet des caractéristiques préférées, éventuellement combinées, analogues à celles exposées ci-dessus à propos du conteneur ; en particulier :The invention furthermore proposes a method of manufacturing such a container, namely a method of manufacturing a container of the aforementioned type, according to which a first flat duct is produced, leaving there, near a first end. , a hole passing through a single wall of this sheath and by folding the other end, a ring is slid inside this sheath from the first end so as to pass through this hole, a second sheath is also made in which two holes are made, is engaged in one of the holes a first access door and another door is engaged in the other hole, the first door being, after introduction of the inner bag into the outer bag, connected by snapping to the ring while the second door is facing the folded end of the first sheath. This method has preferred features, possibly combined, analogous to those set forth above with respect to the container; in particular :
- l'on conforme l'extrémité repliée en forme de trompe,- it conforms the folded end in the shape of a horn,
- l'on relie les deux gaines près d'au moins l'une des extrémités de la première gaine,the two sheaths are connected near at least one end of the first sheath,
- l'on réalise les deux gaines en deux matériaux, dont l'un a une capacité de retenue particulaire et l'autre a des propriétés de protection mécanique.the two sheaths are made of two materials, one of which has a particulate holding capacity and the other has mechanical protection properties.
Des objets, caractéristiques et avantages de l'invention ressortent de la description qui suit, donnée à titre d'exemple illustratif non limitatif, en regard des figures annexées dans lesquelles : la figure 1 est une vue en perspective d'une gaine adaptée à former le sac interne d'un conteneur selon l'invention, la figure 2 en est une vue partielle montrant une portion recevant une bague destinée à être assemblée à une porte d'accès, la figure 3 est une vue de la gaine formant le sac externe du conteneur, la figure 4 est une vue partielle en coupe du conteneur au moment d'assembler une porte à la bague, et la figure 5 est une vue de dessus du conteneur complet. Les figures 1 à 5 représentent des étapes de fabrication d'un conteneur conforme à l'invention : ce conteneur, noté 1 dans son ensemble, comporte un sac interne 10, complètement inclus dans un sac externe 20.Objects, characteristics and advantages of the invention emerge from the description which follows, given by way of nonlimiting illustrative example, with reference to the appended figures in which: FIG. 1 is a perspective view of a sheath adapted to form the inner bag of a container according to the invention, Figure 2 is a partial view showing a portion receiving a ring to be assembled to an access door, Figure 3 is a view of the sheath forming the outer bag 4 is a partial sectional view of the container when assembling a door to the ring, and FIG. 5 is a top view of the complete container. Figures 1 to 5 show steps for manufacturing a container according to the invention: this container, noted 1 as a whole, comprises an inner bag 10, completely included in an outer bag 20.
Le sac interne 10 est réalisé à partir d'une gaine souple 11 de forme totalement aplatie (sa paroi forme donc deux couches superposées et en contact l'une avec l'autre en sorte de minimiser le volume interne de cette gaine), qui est tronçonnée en sorte de présenter de première et seconde extrémités. L'une des extrémités, notée 12, est laissée intacte tandis que l'autre extrémité est ici modifiée, par rétrécissement, par exemple par soudure depuis l'extérieur, en sorte de former une trompe, notée 13, de plus faible section que l'autre extrémité. Par ailleurs, un trou 14 est formé dans la couche supérieure de la paroi du sac interne, à proximité de la première extrémité, par exemple à l'aide d'un emporte-pièce (voir la figure 1).The inner bag 10 is made from a flexible sheath 11 of completely flattened shape (its wall thus forms two superposed layers and in contact with one another so as to minimize the internal volume of this sheath), which is sectioned so as to have first and second ends. One of the ends, noted 12, is left intact while the other end is here modified, by shrinking, for example by welding since the outside, so as to form a horn, noted 13, of smaller section than the other end. Furthermore, a hole 14 is formed in the upper layer of the wall of the inner bag, near the first end, for example using a punch (see Figure 1).
On comprendra que ce n'est que pour des raisons de lisibilité des dessins que l'extrémité 12 est représentée comme largement ouverte, puisqu'il a été précisé que ce sac interne est normalement aplati.It will be understood that it is only for reasons of legibility of the drawings that the end 12 is shown as widely open, since it has been specified that this internal bag is normally flattened.
Il est à noter que ces opérations, effectuées depuis l'extérieur de la gaine 11 , ne contaminent pas l'intérieur du sac interne puisqu'il peut rester totalement aplati au point de ne pas permettre l'entrée de quoi que ce soit.It should be noted that these operations, performed from outside the sheath 11, do not contaminate the interior of the inner bag since it can remain completely flattened to the point of not allowing the entry of anything.
Une bague rigide 15 est ensuite (voir la figure 2) glissée dans la gaine à partir de la première extrémité 12, jusqu'à venir se chausser dans le trou 14. Cette bague est par exemple réalisée en matière plastique rigide, obtenue par injection dans des conditions de grande propreté.A rigid ring 15 is then (see FIG. 2) slid into the sheath from the first end 12, until it is fitted into the hole 14. This ring is for example made of a rigid plastic material, obtained by injection into conditions of cleanliness.
Comme cela ressortira de la suite, cette opération de mise en place de la bague est la seule qui est susceptible de laisser se dégrader la propreté de l'intérieur du sac interne puisqu'elle implique d'entrouvrir la gaine entre l'extrémité 12 et le trou 14 (cette action d'entrouvrir la gaine est exagérée sur la figure 2, par analogie avec la figure 1) . Toutefois, une telle dégradation est insignifiante dès lors que cette préparation est réalisée en salle blanche.As will be apparent from the following, this setting operation of the ring is the only one that is likely to allow to degrade the cleanliness of the interior of the inner bag since it involves opening the sheath between the end 12 and the hole 14 (this action to open the sheath is exaggerated in Figure 2, by analogy with Figure 1). However, such a degradation is insignificant since this preparation is carried out in clean room.
Le sac externe 20 est formé d'une gaine, en pratique légèrement plus large que la gaine 11 , de manière à permettre une introduction aisée de la gaine 11.The outer bag 20 is formed of a sheath, in practice slightly wider than the sheath 11, so as to allow easy introduction of the sheath 11.
Ce sac externe 20 est ici obtenu par simple tronçonnage d'un tube souple, et ses deux extrémités 21 et 22 sont ici ouvertes (voir la figure 3).This outer bag 20 is here obtained by simply cutting a flexible tube, and its two ends 21 and 22 are here open (see Figure 3).
Ce sac externe comporte deux trous dont l'un, 23, est adapté à venir en regard du trou 14 du sac interne, et comporte une porte d'accès 25, coopérant avec une frette 24 coopérant avec la porte d'accès en sorte de prendre en sandwich la périphérie du trou 23. Cette porte 25 est adaptée à coopérer, ici par encliquetage, avec la bague rigide 15 (voir plus loin à propos de la figure 4) et assurer ainsi une liaison entre les deux sacs. L'autre trou 26, destiné à venir en regard de la trompe, est muni d'une porte d'accès 27, en pratique identique à la porte d'accès 25.This external bag has two holes, one of which, 23, is adapted to come opposite the hole 14 of the inner bag, and comprises an access door 25, cooperating with a hoop 24 cooperating with the access door so as to sandwich the periphery of the hole 23. This door 25 is adapted to cooperate, here by snapping, with the rigid ring 15 (see below with reference to Figure 4) and thus provide a connection between the two bags. The other hole 26, intended to come opposite the horn, is provided with an access door 27, in practice identical to the access door 25.
Ces deux portes d'accès 25 et 27 sont avantageusement à usage unique, tel que cela est par exemple décrit dans le document EP - O 688 020 cité ci-dessus. On comprendra que, par la notion de porte d'accès, on entend ici la combinaison d'une bride fixe par rapport à l'un au moins des sacs et d'un obturateur mobile adapté à obturer, ou non, l'ouverture formée dans la bride.These two access doors 25 and 27 are advantageously disposable, as for example described in the document EP-0 688 020 cited above. It will be understood that, by the concept of access door, here means the combination of a fixed flange with respect to at least one of the bags and a movable shutter adapted to seal, or not, the formed opening in the flange.
La première porte d'accès 25 est destinée au chargement de produits ou de petits matériels tandis que la seconde porte d'accès 27 est destinée au déchargement de ces produits ou petits matériels, par l'intermédiaire de la trompe.The first access door 25 is for loading products or small equipment while the second access door 27 is intended for unloading these products or small equipment, via the horn.
Ce sac externe peut être préparé dans des conditions moindres de propreté que le sac interne.This outer bag can be prepared in less clean conditions than the inner bag.
En entrouvrant la gaine par l'une des extrémités 21 ou 22, le fabricant de conteneur peut ensuite y introduire le sac interne, après avoir replié la trompe, en faisant glisser l'ensemble ainsi replié ; la porte 25 est alors encliquetée sur la bague rigide 15 (voir les figures 4 et 5). Bien qu'il soit envisageable que le montage des deux portes soit réalisé après introduction du sac interne dans le sac externe, on notera que le fait de ne plus avoir, après le glissement du sac interne dans le sac externe, qu'à relier par encliquetage la première porte à la bague rigide a l'avantage de minimiser les risques de dégradation du sac interne du fait de son assemblage au sac externe.By opening the sheath by one of the ends 21 or 22, the container manufacturer can then introduce the inner bag, after folding the trunk, dragging the assembly and folded; the door 25 is then snapped onto the rigid ring 15 (see Figures 4 and 5). Although it is conceivable that the mounting of the two doors is carried out after introduction of the inner bag into the outer bag, it will be noted that the fact of not having, after the sliding of the inner bag in the outer bag, to connect by snapping the first door to the rigid ring has the advantage of minimizing the risk of degradation of the inner bag due to its assembly to the outer bag.
On peut noter que, bien qu'il soit prévu à la figure 4 que la porte 25 s'encliquette sur la bague 15, il peut tout aussi bien être prévu que l'encliquetage ait lieu dans cette bague.It may be noted that, although it is provided in FIG. 4 that the door 25 snaps onto the ring 15, it can equally well be provided that the snap-fit takes place in this ring.
Les deux sacs sont en pratique tous deux en matières plastiques.Both bags are in practice both plastic.
On peut noter que, à partir du moment où le sac interne a été glissé dans la gaine externe, et où la première porte d'accès 25 a été reliée par encliquetage à la bague rigide 15, l'intérieur du sac interne est protégé vis-à-vis de toute contamination extérieure puisque le trou 13 est désormais obturé par la porte d'accès 25 tandis que la trompe, étant repliée, interdit toute entrée de contamination. II mérite d'être noté qu'un intérêt du conteneur de l'invention est que l'on peut choisir des films de natures différentes pour les deux sacs ; ils peuvent donc être choisis de natures complémentaires, puisque le sac interne est destiné à être le plus propre possible tandis que le sac externe a pour principale fonction d'être une enveloppe de protection, dont le degré de propreté est secondaire par rapport au degré de propreté souhaité pour le sac interne. C'est ainsi que le matériau constitutif du sac interne peut être réalisé dans un matériau déjà validé pour ses qualités de compatibilité avec les produits qui sont destinés à y être introduits tandis que le matériau constitutif du sac externe peut être choisi pour son aptitude à servir de barrière, sa tenue au vide, son imperméabilité à l'oxygène, à la vapeur, etc. ; il peut notamment s'agir d'un matériau multicouche.It may be noted that, from the moment when the inner bag has been slid into the outer sheath, and the first access door 25 has been snap-fastened to the rigid ring 15, the inside of the inner bag is protected against to any external contamination since the hole 13 is now closed by the access door 25 while the trunk, being folded, prohibits any entry of contamination. It should be noted that an interest of the container of the invention is that one can choose films of different natures for the two bags; they can therefore be chosen complementary natures, since the inner bag is intended to be as clean as possible while the outer bag has the main function of being a protective envelope, the degree of cleanliness is secondary to the degree of desired cleanliness for the inner bag. Thus, the material constituting the internal bag can be made of a material already validated for its qualities of compatibility with the products that are intended to be introduced while the material constituting the outer bag can be chosen for its ability to serve barrier, its resistance to vacuum, its impermeability to oxygen, steam, etc. ; it may especially be a multilayer material.
A titre d'exemple, le sac interne est réalisé en un film de polyéthylène de haut degré de propreté, avec une épaisseur de l'ordre de 80 à 120 microns tandis que le sac externe peut être réalisé en un multicouche de polyéthylène- polyamide-polyéthylène d'épaisseur sensiblement égale à de l'ordre de 100 microns.For example, the inner bag is made of a polyethylene film of high degree of cleanliness, with a thickness of the order of 80 to 120 microns while the outer bag can be made of a polyethylene-polyamide multilayer. polyethylene of thickness substantially equal to about 100 microns.
Le sac interne 10 est en pratique plus long que le sac externe 20, ce qui permet de replier la trompe tout en permettant que la partie de largeur maximale de ce sac interne soit à peine plus court que le sac externe (on observe sur la figure 5 que la partie de largeur maximale du sac interne occupe environ les trois-quarts de la longueur du sac externe et comporte une portion trapézoïdale de transition vers la trompe qui est en quasi-totalité située après le pli du sac interne.The inner bag 10 is in practice longer than the outer bag 20, which makes it possible to fold the trunk while allowing the portion of maximum width of this inner bag to be only slightly shorter than the outer bag (it can be seen in the figure 5 that the portion of maximum width of the inner bag occupies about three quarters of the length of the outer bag and has a trapezoidal portion transition to the horn which is almost completely located after the fold of the inner bag.
Puisque la trompe est repliée, elle reste en principe coincée dans le sac externe lors du remplissage du sac interne, à travers la porte d'accès 25.Since the trunk is folded, it remains in principle stuck in the outer bag during filling of the inner bag, through the access door 25.
Ce n'est qu'au moment de transférer le contenu du sac interne vers l'extérieur que l'opérateur ouvre la seconde porte 27, saisit la trompe qui passe sous cette porte et la tire vers l'extérieur, pour la déplier et permettre la sortie des produits ou matériels vers l'extérieur, par exemple à l'intérieur d'une autre enceinte à un orifice duquel la porte d'accès 27 aura été fixée. La forme de trompe permet un bon écoulement des produits lorsque ceux-ci sont liquides ou pulvérulents ou lorsque les matériels sont de très petites pièces.It is only when the contents of the inner bag are moved to the outside that the operator opens the second door 27, seizes the trunk that passes under this door and pulls it outward, to unfold and allow the exit of the products or materials to the outside, for example inside another enclosure to a port which the access door 27 has been fixed. The form of trunk allows a good flow of products when they are liquid or powdery or when the materials are very small parts.
On comprend que la section de la trompe est de préférence à peine inférieure à celle de la porte d'accès de manière à favoriser la sortie des produits et matériels.It is understood that the section of the horn is preferably slightly less than that of the access door so as to promote the output of products and materials.
Pour des raisons de commodité, il peut être prévu de solidariser les deux sacs par une soudure externe le long de la ligne de pointillés 30, près des ouvertures gauches des deux sacs, ce qui permet d'éviter que le sac interne soit le seul à supporter la charge des produits ou matériels à transférer ou à traiter. Il peut aussi être prévu de solidariser les deux sacs par une soudure externe le long de la ligne de pointillés 31 près de l'extrémité repliée du sac interne, ce qui favorise le maintien en position repliée du sac interne lors de son remplissage par la porte 25. Il peut bien sûr être prévu qu'il y ait des soudures près de chacune des extrémités du sac externe, de manière à éviter toute entrée significative de contamination entre les deux sacs interne et externe.For reasons of convenience, it may be provided to secure the two bags by an external weld along the dotted line 30 near the left openings of the two bags, which prevents the inner bag is the only one to bear the burden of the products or materials to be transferred or processed. It can also be provided to secure the two bags by an external weld along the dotted line 31 near the folded end of the inner bag, which promotes the retention in the folded position of the inner bag during its filling by the door 25. It can of course be expected that there will be welds near each end of the outer bag, so as to avoid any significant entry of contamination between the two inner and outer bags.
Toutefois, on comprend qu'il n'y a pas de nécessité à fermer le sac externe pour garantir un bon niveau de propreté de l'intérieur du sac interne, surtout si l'on donne à la trompe une grande longueur, typiquement comprise entre 20% et 33% de la longueur du sac externe (dans l'exemple représenté, la trompe a une longueur représentant de l'ordre d'un quart de la longueur de l'ensemble des deux sacs).However, it is understood that there is no need to close the outer bag to ensure a good level of cleanliness of the interior of the inner bag, especially if we give the trunk a great length, typically between 20% and 33% of the length of the outer bag (in the example shown, the trunk has a length representing about one quarter of the length of the set of two bags).
On constate qu'ainsi, seule la qualité de retenue des particules du sac interne est importante, puisque la protection des produits est assurée par le sac externe. Au moment de la préparation du sac interne, seul le fait de faire glisser la bague en entrouvrant la gaine est susceptible de permettre une contamination, mais celle-ci peut être annulée si cette opération est réalisée en salle blanche. En outre, lorsque l'on glisse le sac interne dans le sac externe pour encliqueter la partie mâle de la porte 25 dans la bague, on peut désioniser la part du sac interne exposée avant cet encliquetage.It is found that in this way, only the retention quality of the particles of the inner bag is important, since the protection of the products is ensured by the outer bag. At the time of preparation of the inner bag, only sliding the ring by opening the sheath is likely to allow contamination, but it can be canceled if this is done in clean room. In addition, when the inner bag is slipped into the outer bag to snap the male part of the door into the ring, it is possible to deionize the part of the inner bag exposed before this snap.
En suivant ce procédé, on constate que seule la surface de la paroi interne du sac interne faisant face au trou fait à l'emporte-pièce peut être contaminée alors que tout le reste de la surface interne du sac interne reste à l'abri de toute contamination. Le ratio entre les deux surfaces, à savoir la surface du trou et la totalité de la surface interne du sac interne définit le risque de dégradation de la propreté de la surface interne du sac interne, par rapport au niveau de propreté d'un sac directement fermé en salle blanche, mais ce ratio peut être très faible, et le risque de contamination peut être minimisé par les précautions prises lors de l'assemblage des deux sacs. By following this method, it is found that only the surface of the inner wall of the inner bag facing the hole made by the punch can be contaminated while all the rest of the inner surface of the inner bag remains free from contamination. The ratio between the two surfaces, namely the surface of the hole and the entire internal surface of the inner bag defines the risk of degradation of the cleanliness of the inner surface of the inner bag, compared to the level of cleanliness of a bag directly. closed in clean room, but this ratio can be very low, and the risk of contamination can be minimized by the precautions taken when assembling the two bags.

Claims

REVENDICATIONS
1. Conteneur souple de transfert (1) comportant un sac interne (10) formé d'une gaine à plat fermée à une extrémité (12) et dont l'autre extrémité (13) est repliée vers la première extrémité, ce sac interne étant inclus dans un sac externe (20) formé d'une gaine munie d'une première porte d'accès (25) traversant la paroi des deux sacs, près de l'extrémité fermée du sac interne et d'une seconde porte d'accès (27) traversant uniquement la paroi du sac externe, en regard d'une portion de l'extrémité repliée du sac interne.A flexible transfer container (1) comprising an inner bag (10) formed of a flat sleeve closed at one end (12) and whose other end (13) is folded towards the first end, this inner bag being included in an outer bag (20) formed of a sheath provided with a first access door (25) passing through the wall of the two bags, near the closed end of the inner bag and a second access door (27) crossing only the wall of the outer bag, facing a portion of the folded end of the inner bag.
2. Conteneur selon la revendication 1 , caractérisé en ce que l'extrémité repliée (13) du sac interne (10) est conformée en trompe, plus étroite que le reste du sac interne.2. Container according to claim 1, characterized in that the folded end (13) of the inner bag (10) is shaped like a horn, narrower than the rest of the inner bag.
3. Conteneur selon la revendication 1 ou la revendication 2, caractérisé en ce que le sac interne (10) a une largeur au plus égale à celle du sac externe.3. Container according to claim 1 or claim 2, characterized in that the inner bag (10) has a width at most equal to that of the outer bag.
4. Conteneur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les deux sacs sont reliés (30) près de la première extrémité fermée du sac interne.4. Container according to any one of claims 1 to 3, characterized in that the two bags are connected (30) near the first closed end of the inner bag.
5. Conteneur selon la revendication 4, caractérisé en ce que les deux sacs sont reliés par soudure.5. Container according to claim 4, characterized in that the two bags are connected by welding.
6. Conteneur selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les deux sacs sont reliés (31) près de l'extrémité repliée (13) du sac interne.6. Container according to any one of claims 1 to 5, characterized in that the two bags are connected (31) near the folded end (13) of the inner bag.
7. Conteneur selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les portes d'accès (25, 27) sont des portes à usage unique. Container according to one of Claims 1 to 6, characterized in that the access doors (25, 27) are single-use doors.
8. Conteneur selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les sacs interne et externe sont réalisés en des matériaux différents dont l'un a une capacité de retenue particulaire et l'autre a des propriétés de protection mécanique.8. Container according to any one of claims 1 to 7, characterized in that the inner and outer bags are made of different materials, one of which has a particulate retention capacity and the other has mechanical protection properties.
9. Procédé de fabrication d'un conteneur selon l'une quelconque des revendications 1 à 8, selon lequel on réalise une première gaine à plat, en y ménageant, près d'une première extrémité (12), un trou (14) traversant une seule paroi de cette gaine et en repliant l'autre extrémité, on glisse une bague (15) à l'intérieur de cette gaine à partir de la première extrémité en sorte de traverser ce trou (14), on réalise par ailleurs une seconde gaine dans laquelle on réalise deux trous, on engage dans l'un des trous une première porte d'accès (25) et on engage une autre porte d'accès (27) dans l'autre trou, la première porte (25) étant, après introduction du sac interne dans le sac externe, reliée par encliquetage à la bague (15) tandis que la seconde porte (27) est en regard de l'extrémité repliée de la première gaine.9. A method of manufacturing a container according to any one of claims 1 to 8, wherein a first sheath is made flat, leaving there, near a first end (12), a hole (14) passing through a single wall of this sheath and by folding the other end, it slips a ring (15) inside this sheath from the first end so as to pass through the hole (14), it also achieves a second sheath in which two holes are made, is engaged in one of the holes a first access door (25) and is engaged another access door (27) in the other hole, the first door (25) being , after introduction of the inner bag into the outer bag, snap-fastened to the ring (15) while the second door (27) is opposite the folded end of the first sheath.
10. Procédé selon la revendication 9, caractérisé en ce que l'on conforme l'extrémité repliée (13) en forme de trompe.10. The method of claim 9, characterized in that it conforms the folded end (13) shaped horn.
11. Procédé selon la revendication 9 ou la revendication 10, caractérisé en ce que l'on relie les deux gaines près (30, 31) d'au moins l'une des extrémités de la première gaine.11. The method of claim 9 or claim 10, characterized in that it connects the two sheaths close (30, 31) of at least one end of the first sheath.
12. Procédé selon l'une quelconque des revendications 9 à 11 , caractérisé en ce que l'on réalise les deux gaines en deux matériaux, dont l'un a une capacité de retenue particulaire et l'autre a des propriétés de protection mécanique. 12. Method according to any one of claims 9 to 11, characterized in that the two sheaths are made of two materials, one of which has a particulate retention capacity and the other has mechanical protection properties.
EP08805564A 2007-05-11 2008-05-13 Flexible transport container and production method thereof Active EP2193086B1 (en)

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FR0755036A FR2915974B1 (en) 2007-05-11 2007-05-11 FLEXIBLE TRANSFER CONTAINER AND MANUFACTURING METHOD.
PCT/FR2008/000660 WO2008155483A2 (en) 2007-05-11 2008-05-13 Flexible transport container and production method thereof

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US8523436B2 (en) 2013-09-03
WO2008155483A2 (en) 2008-12-24
ATE495117T1 (en) 2011-01-15
DE602008004564D1 (en) 2011-02-24
EP2193086B1 (en) 2011-01-12
JP2010526741A (en) 2010-08-05
WO2008155483A3 (en) 2009-03-26
JP5167346B2 (en) 2013-03-21
FR2915974B1 (en) 2009-07-10
US20100303389A1 (en) 2010-12-02
FR2915974A1 (en) 2008-11-14

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