EP1832523B1 - Container preform and container with several compartments for storing and dispensing products, in particular cosmetic or care products and corresponding manufacturing process - Google Patents
Container preform and container with several compartments for storing and dispensing products, in particular cosmetic or care products and corresponding manufacturing process Download PDFInfo
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- EP1832523B1 EP1832523B1 EP07103627A EP07103627A EP1832523B1 EP 1832523 B1 EP1832523 B1 EP 1832523B1 EP 07103627 A EP07103627 A EP 07103627A EP 07103627 A EP07103627 A EP 07103627A EP 1832523 B1 EP1832523 B1 EP 1832523B1
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- Prior art keywords
- container
- diaphragm
- preform
- central
- products
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- 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
- B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
- B65D35/22—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with two or more compartments
Definitions
- the invention relates to a method according to the preamble of claim 1, a blank according to claim 5 and a container according to the preamble of claim 17.
- the invention relates to the realization of multi-compartment containers for containing different products.
- a particularly interesting application of such containers relates to the storage and distribution of make-up products, in particular lipsticks.
- the behavior in time of a lipstick is provided by a formulation with a dull, while the gloss of a lipstick is given by a formulation whose behavior in time is relatively poor .
- formulations have often antagonistic properties and are generally not conditionable in the mixed state. Although these formulations can be mixed to obtain the required performance, they may react chemically to form a composition unstable over time, so that it is not possible to keep them simultaneously in the same compartment. This is why it is generally desirable to keep them in multi-compartment containers and mix them extemporaneously.
- containers for storing and dispensing products with several compartments which comprise a body provided internally with a separating partition which delimits in the body two chambers which are intended to be filled each with a product.
- US patents US 5, 954, 234 and US 1, 894, 115 The container described in these documents is provided with an internal partition and has a first end forming a neck for dispensing the products, and an open opposite end, through which the container can be filled, this end being intended to be closed by pinching and welding after filling the container.
- a widely used technique for the realization of multi-compartment containers is to inject a plastic material into the mold cavity so as to form in one piece the body of the container and the internal partition.
- the containers are then often made of polyethylene, in particular a mixture of polyethylenes at high and low densities.
- This material has the advantage of being compatible with the compositions or formulations likely to be contained in the compartments, to be easily injected, to be weldable on itself, to have sufficient resistance to cracking or the "stress cracking" due to the permanent deformation of the tube after welding, and to provide a sufficiently tight barrier to the components of the compositions so that there is no migration of the components contained in one of the compartments to the composition contained in another compartment.
- this material has a major disadvantage in that it has, at molding temperatures, a very low grade, that is to say a very low fluidity. It is therefore necessary to inject this product with a relatively high pressure. In addition, for this reason, it is very difficult to mold thin walls, the high viscosity of the product does not allow it to be inserted between mold walls too close to each other.
- This material is advantageous in that it is flexible to cold and thus allows to close the open end of the container by which the latter is filled, by pinching and welding and facilitates, in use, the extraction of the product allowing the user to exert pressure on the wall of the container.
- the object of the invention is to overcome the disadvantages associated with the production of conventional multi-compartment containers.
- the object of the invention is to provide a container with several compartments for storing and dispensing products in which the separating partition can be made in the form of a sufficiently thin membrane to give it a large flexibility while having a perfect seal to the various components that may be contained in the container.
- the object of the invention is therefore, according to a first aspect, a method of producing a multi-compartment product storage and dispensing container blank by molding a plastic material injected into the cavity of a mold.
- At least one membrane is placed in the cavity of the mold so as to form in the container at least one overmolded internal partition which extends between a first end and a second end of the container, to delimit compartments for containing respective products.
- This method may further be characterized in that said membrane comprises a material different from said plastic material. It can thus include a metallic film.
- a membrane in the form of a ribbon is used, displaced in translation after each molding of a blank, so as to successively produce a set of blanks in the form of a string of blanks. joined by the membrane.
- the invention also relates to a multi-compartment product storage and dispensing container blank comprising a molded plastic body having a first open end for filling the container which is intended for being closed by clamping and welding, an opposite second end provided with a product dispensing means and at least one internal partition extending between the two ends and defining in the blank compartments for containing products respectively.
- said at least one internal partition comprises at least one overmolded separating membrane.
- the or each membrane comprises a material different from that of the body.
- different materials materials having a different composition, but this term also includes materials having the same chemical molecule and different physicochemical characteristics.
- the membrane comprises a metal film, in particular an aluminum foil.
- the separating membrane can be made in the form of a multilayer structure.
- the multilayer structure may comprise a central metal sheet and two plastic side layers.
- the separating membrane has a width, considered in a transverse direction of the container, equal to half a perimeter of the body.
- the membrane comprises for example longitudinal folds delimiting a succession of concave portions offset relative to a median longitudinal plane of the body and alternately turned towards the compartments.
- the membrane comprises a single central recess concavity turned towards a first compartment and two lateral folds extending on either side of the central fold and concavities turned towards a second compartment.
- the second end of the body may then comprise a central opening and two lateral openings, each opening opening into one of the concave portions.
- the section of the central opening is equal to the total section of the two lateral openings.
- the central opening and the lateral openings have sections such that for two products of the same viscosity, the product flow in the central opening is equal to the sum of product flows in the lateral openings.
- the invention also relates to a multi-compartment product storage and dispensing container, comprising a molded plastic body having a first end closed by pinching and welding, a second end. opposed provided with a product dispensing means, and at least one inner partition extending between the two ends and delimiting in the body compartments filled with respective products.
- This container is characterized in that said at least one internal partition comprises at least one overmolded separating membrane.
- the membrane may further comprise a material different from that of the body.
- the membrane may comprise a metal film, in particular aluminum.
- the membrane may also be in the form of a multilayer structure and comprise a central metal sheet and two plastic side layers.
- the membrane has a width, considered in a transverse direction of the container, equal to half a perimeter of the body, and comprises a central fold defining a first concave portion facing a first compartment and two lateral folds extending from one side to the other. Another of the central fold and delimiting second and third concave parts concavity turned towards a second compartment.
- the second end of the body of the container has a central opening and two lateral openings, each opening opening into one of the concave portions.
- the section of the central opening may be equal to the total section of the two lateral openings. But the central and lateral openings can be made so that their sections are such that, for two products of the same viscosity, the flow of product in the opening equal to the sum of the product flows in the lateral openings.
- This container may further comprise a cap provided with closing pins engaging in central and lateral openings of the body which open respectively to the compartments.
- FIG. 1 On the Figures 1 to 3 , there is shown an embodiment of a container blank according to the invention, designated by the general reference numeral 1.
- This blank is intended for producing a container ( Figures 4 to 7 ) with two compartments each intended to contain a product, especially a cosmetic or care product, for example a lipstick containing two formulas stored separately and intended to be mixed extemporaneously during application.
- the blank 1 essentially comprises a substantially cylindrical body 2 made by molding a thermoplastic material, for example polyethylene.
- the body 2 comprises an open end 3 for filling the body and intended to be closed by clamping and welding after filling and an opposite end 4 forming a neck 5 provided with a dispensing means by which the products are delivered, during the 'application.
- the blank 1 is further provided with an internal overmolded partition 6 which essentially comprises a material different from the material constituting the body 2 of the blank.
- the body of the container is for example made of polyethylene.
- polyethylene With regard to the partition, as will be described in detail later, this is for example made from a metal, for example aluminum. But one can also use a polyethylene of different grade or a laminated polyethylene.
- the partition 6 extends in the body 2 of the first end 3 to the second end 4. It comprises a length that substantially corresponds to the length of the body 2 and a width substantially equal to half a perimeter of the body.
- the length of the body 2 is slightly greater than that of the partition 6 so that the weld of the body after filling is performed both on the end of the partition, and also on both walls from the body. This ensures a good closure of the container.
- the partition 6 thus delimits, in the body, a first compartment 7 which is intended to be filled with a first product, and a second separate compartment 8, which is intended to be filled with a second product.
- the body 2 has a cylindrical shape with a circular base or oval base in order to allow identification of the position of the container in a packaging machine and, in particular, during the welding of the end 3.
- the body 2 could be made in the form of a cylinder with a circular base, the identification of the angular position of the tube then being done by any other appropriate means.
- the body 2 has a slight relief, so that it flares substantially from the end 4 towards the end 3 in order to facilitate demolding of a central core used during the molding of the blank.
- the body 2 In the vicinity of the end 4, the body 2 has a shoulder 9 which is a bearing on which comes to rest a closure cap. From the scope, the body extends towards the end 4, by a nose comprising a generally frustoconical portion 10 itself extended by a cylindrical applicator 11 provided with an inclined end face 12.
- This end face 12 is provided with a central orifice 13, which is centered on the general axis XX 'of the body 2 and which communicates with one of the compartments, and two lateral orifices 14 and 15 which are situated on the other side. and other of the central orifice 13 on a median plane P of the body 2 and which each communicate with the other compartment.
- the section of the central orifice 13 corresponds to the overall section of two lateral orifices 14 and 15.
- the outer peripheral surface of the applicator 11 is provided with an annular ridge 16 projecting which is intended, as will be detailed later, to snap into a corresponding groove formed in a closure cap.
- the contoured shape of the partition 6 is provided so that, on the one hand, its length is equal to the length of the weld of the tube and so that, on the other hand, the partition bypasses the orifices 13, 14 and 15.
- the partition 6 comprises three folds, namely a central recess 18, concavity turned to a first compartment 7, and two lateral folds 17 and 19, concavity facing the other compartment 8.
- the central orifice 13 opens into the first compartment 7, while the lateral orifices 14 and 15 open into the other compartment 8.
- this partition 6 is preferably made in the form of a multilayer membrane and comprises a central aluminum film and two outer layers of polyethylene secured by bonding to the aluminum film.
- This structure is advantageous insofar as the two outer layers of polyethylene can easily be heat welded with the material constituting the body 2 during the closing of the opening 3.
- the thickness of the partition 6 may be of the order of 0.2 mm, that of the aluminum film being of the order of 12 microns. Such fineness makes it possible to achieve a partition having optimum flexibility while providing a completely sealed barrier to the components filling the compartments 7 and 8 due to the presence of the aluminum film.
- the partition 6 has a thickness (unlike an injected wall) substantially constant over its entire surface so that the partition has a constant permeability over its entire surface.
- the membrane 6 constituting the partition in the cavity of a mold, and in particular in a central core of the mold, so that the film overflows around the core.
- a central core shaped so as to obtain the contoured shape of the partition 6 will be used.
- the mold is then closed around the membrane, and an injection of plastic material is made, which will be welded on the free part of the mold. the membrane that overflows into the impression.
- the piece is ejected and is placed in a cutting tool to remove the protruding portion of the membrane.
- the membrane can be cut beforehand and placed precisely in the central core, using a robot, for example.
- a membrane in the form of a ribbon is used which is displaced in translation, step by step, at each injection phase so as to produce, after demolding, a string of blanks bound by the membrane. in ribbon.
- a conditioning phase is carried out. To do this, each blank is transferred to a filling station at which it is filled by its open end 3. During filling, the compartments of different products are filled to be mixed extemporaneously with the application. It is then necessary to close the open end of the container by pinching and welding. In the welding zone, the membrane 6 is then stretched and adopts a planar configuration. We then obtain the visible container on the figures 4 and 6 .
- a closing cap 20 is also produced ( figures 5 and 7 ) by injection of a thermoplastic material, preferably identical to the material used in the constitution of the body 2 of the container.
- This cover also adopts a generally cylindrical shape, with an oval base, of shape complementary to that of the applicator 11. Therefore, the cover 20 can be mounted on the neck 7 only in two positions angularly offset by 180 ° one compared to each other.
- the cover 20 essentially comprises a distal end face 21 planar, extending by a double cylindrical skirt consisting of an inner skirt 22 and an outer skirt 23.
- the inner skirt 22 is internally provided with a groove (not shown ) intended to cooperate with the external groove 16 of the applicator 15 to allow snap-fitting of the cap 20 on the body 2.
- the outer skirt 23 has dimensions and a shape similar to those of the bearing surface 9 on which it comes to rest after snapping of the cap 20.
- the bottom of the hood 20 is provided with three pins aligned along a median plane of the hood, namely a central pin 24 and lateral pins 25 and 26 disposed on either side of the central pin.
- the central pin 24 is intended to close the central opening 13, while the lateral pins 25 and 26 are intended to close the lateral orifices 14 and 15.
- the central pin 24 therefore has a section in cross section that corresponds to that of the central orifice 13 and the lateral pins 25 and 26 each have a section in cross section which corresponds to the section of the lateral orifices 14 and 15.
- the lateral orifices 14 and 15 open into the same compartment 8
- the lateral pins 25 and 26 can then close off one or the other of the lateral orifices 14 or 15, in the two possible angular positions of the cover without the risk of cross-polluting one composition with the other.
- the container is provided with only one separating partition. It would also be possible, alternatively, to provide the container with several partitions to provide in the container a greater number of compartments for storing a larger number of products.
- the container in another cylindrical or non-cylindrical shape, with a square, rectangular or round base, etc.
- applicator may adopt any other form.
- the applicator has a cylindrical overall shape with an oval base ending in an inclined flat end, it is also possible, alternatively, to provide the container with an applicator of any other shape, for example rounded.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Cosmetics (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Container Filling Or Packaging Operations (AREA)
Abstract
Description
L'invention concerne un procédé selon le préambule de la revendication 1, une ébauche selon la revendication 5 et un récipient selon le préambule de la revendication 17.The invention relates to a method according to the preamble of
Plus particulièrement, l'invention se rapporte à la réalisation de récipients à plusieurs compartiments destinés à contenir des produits différents.More particularly, the invention relates to the realization of multi-compartment containers for containing different products.
Il existe en effet un besoin pour des récipients à plusieurs compartiments capables de stocker séparément des produits différents et de permettre leur mélange lors de l'application, tout en évitant une pollution croisée en limitant les migrations de produits d'un compartiment vers l'autre.There is indeed a need for multi-compartment containers capable of separately storing different products and allowing their mixing during application, while avoiding cross-contamination by limiting the migration of products from one compartment to the other .
Une application particulièrement intéressante de tels récipients concerne le stockage et la distribution de produits de maquillage, en particulier de rouges à lèvres.A particularly interesting application of such containers relates to the storage and distribution of make-up products, in particular lipsticks.
En effet, par exemple, la tenue dans le temps d'un rouge à lèvres est procurée par une formulation au rendu terne, alors que la brillance d'un rouge à lèvres est donnée par une formulation dont la tenue dans le temps est relativement médiocre.Indeed, for example, the behavior in time of a lipstick is provided by a formulation with a dull, while the gloss of a lipstick is given by a formulation whose behavior in time is relatively poor .
De même, la couleur et le traitement des lèvres, en particulier leur hydratation, sont obtenus par des formulations différentes.Similarly, the color and the treatment of the lips, in particular their hydration, are obtained by different formulations.
Ces formulations présentent des propriétés souvent antagonistes et ne sont généralement pas conditionnables à l'état mélangé. Bien que ces formulations puissent être mélangées pour obtenir les performances demandées, il arrive qu'elles réagissent alors chimiquement pour former une composition instable dans le temps, de sorte qu'il n'est pas possible de les conserver simultanément dans un même compartiment. C'est la raison pour laquelle il est généralement souhaitable de les conserver dans des récipients à plusieurs compartiments et de les mélanger extemporanément.These formulations have often antagonistic properties and are generally not conditionable in the mixed state. Although these formulations can be mixed to obtain the required performance, they may react chemically to form a composition unstable over time, so that it is not possible to keep them simultaneously in the same compartment. This is why it is generally desirable to keep them in multi-compartment containers and mix them extemporaneously.
Il existe, dans l'état de la technique, des récipients de stockage et de distribution de produits à plusieurs compartiments qui comportent un corps pourvu intérieurement d'une cloison séparatrice qui délimite dans le corps deux chambres qui sont destinées à être emplies chacune d'un produit.There are, in the state of the art, containers for storing and dispensing products with several compartments which comprise a body provided internally with a separating partition which delimits in the body two chambers which are intended to be filled each with a product.
On pourra à cet égard se référer aux brevets américains
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Mais une technique largement répandue pour la réalisation de récipients à plusieurs compartiments consiste à injecter une matière plastique dans l'empreinte d'un moule de manière à former en une seule pièce le corps du récipient et la cloison interne. Les récipients sont alors souvent réalisés en polyéthylène, en particulier un mélange de polyéthylènes à haute et basse densités.But a widely used technique for the realization of multi-compartment containers is to inject a plastic material into the mold cavity so as to form in one piece the body of the container and the internal partition. The containers are then often made of polyethylene, in particular a mixture of polyethylenes at high and low densities.
Ce matériau présente en effet l'avantage de pouvoir être compatible avec les compositions ou formulations susceptibles d'être contenues dans les compartiments, de pouvoir être aisément injecté, d'être soudable sur lui-même, de présenter une résistance suffisante à la fissuration ou au « stress cracking » due à la déformation permanente du tube après soudure, et de constituer une barrière suffisamment étanche aux composants des compositions afin qu'il n'y ait pas de migration des composants contenus dans l'un des compartiments vers la composition contenue dans un autre compartiment.This material has the advantage of being compatible with the compositions or formulations likely to be contained in the compartments, to be easily injected, to be weldable on itself, to have sufficient resistance to cracking or the "stress cracking" due to the permanent deformation of the tube after welding, and to provide a sufficiently tight barrier to the components of the compositions so that there is no migration of the components contained in one of the compartments to the composition contained in another compartment.
Mais ce matériau présente un inconvénient majeur dans la mesure où il possède, aux températures de moulage, un grade très bas, c'est-à-dire une fluidité très faible. Il est donc nécessaire d'injecter ce produit avec une pression relativement élevée. En outre, pour cette raison, il est très difficile de mouler des parois fines, la forte viscosité du produit ne lui permettant pas de s'insérer entre des parois du moule trop rapprochées l'une de l'autre.But this material has a major disadvantage in that it has, at molding temperatures, a very low grade, that is to say a very low fluidity. It is therefore necessary to inject this product with a relatively high pressure. In addition, for this reason, it is very difficult to mold thin walls, the high viscosity of the product does not allow it to be inserted between mold walls too close to each other.
Ce matériau est avantageux dans la mesure où il est souple à froid et permet ainsi de fermer l'extrémité ouverte du récipient par laquelle ce dernier est rempli, par pincement et soudage et facilite, à l'usage, l'extraction du produit en permettant à l'utilisateur d'exercer une pression sur la paroi du récipient.This material is advantageous in that it is flexible to cold and thus allows to close the open end of the container by which the latter is filled, by pinching and welding and facilitates, in use, the extraction of the product allowing the user to exert pressure on the wall of the container.
Mais cette souplesse ne facilite pas le démoulage de l'ébauche du récipient. Il est donc nécessaire, afin de faciliter le démoulage de l'ébauche du récipient, d'augmenter l'épaisseur de la paroi, ce qui nuit alors à la souplesse du récipient.But this flexibility does not facilitate the demolding of the blank of the container. It is therefore necessary, in order to facilitate the demolding of the blank of the container, to increase the thickness of the wall, which then affects the flexibility of the container.
Un compromis doit alors être recherché entre, d'une part, la rigidité nécessaire au démoulage de l'ébauche du récipient et, d'autre part, la souplesse nécessaire à la soudure et à l'usage du récipient. Mais un tel compromis est difficilement atteignable en ce qui concerne la cloison séparatrice. En effet, si celle-ci est trop mince, elle n'est pas suffisamment perméable pour éviter la migration des composants d'un compartiment vers l'autre.A compromise must then be sought between, on the one hand, the rigidity necessary for demolding the blank of the container and, on the other hand, the flexibility required for welding and the use of the container. But such a compromise is difficult to achieve with regard to the partition wall. Indeed, if it is too thin, it is not sufficiently permeable to avoid the migration of components from one compartment to another.
Au contraire, si elle est trop épaisse, elle n'est pas assez souple et ne pourra alors pas être aisément aplatie lors de la soudure de l'extrémité ouverte de remplissage du récipient.On the contrary, if it is too thick, it is not flexible enough and can not be easily flattened during the welding of the open end of filling of the container.
Au vu de ce qui précède, le but de l'invention est de pallier les inconvénients liés à la réalisation des récipients conventionnels à plusieurs compartiments.In view of the foregoing, the object of the invention is to overcome the disadvantages associated with the production of conventional multi-compartment containers.
En particulier, le but de l'invention est de fournir un récipient à plusieurs compartiments de stockage et de distribution de produits dans lequel la cloison séparatrice peut être réalisée sous la forme d'une membrane suffisamment mince pour lui conférer une grande souplesse tout en ayant une étanchéité parfaite aux différents composants susceptibles d'être contenus dans le récipient.In particular, the object of the invention is to provide a container with several compartments for storing and dispensing products in which the separating partition can be made in the form of a sufficiently thin membrane to give it a large flexibility while having a perfect seal to the various components that may be contained in the container.
L'invention a donc pour objet, selon un premier aspect, un procédé de réalisation d'une ébauche de récipient de stockage et de distribution de produits à plusieurs compartiments par moulage d'une matière plastique injectée dans l'empreinte d'un moule.The object of the invention is therefore, according to a first aspect, a method of producing a multi-compartment product storage and dispensing container blank by molding a plastic material injected into the cavity of a mold.
Selon une caractéristique générale de ce procédé, préalablement à l'injection de la matière plastique, on place dans l'empreinte du moule au moins une membrane de manière à former dans le récipient au moins une cloison interne surmoulée qui s'étend entre une première extrémité et une deuxième extrémité du récipient, pour délimiter des compartiments destinés à contenir des produits respectifs.According to a general characteristic of this process, prior to injection of the plastic material, at least one membrane is placed in the cavity of the mold so as to form in the container at least one overmolded internal partition which extends between a first end and a second end of the container, to delimit compartments for containing respective products.
Ce procédé peut en outre être caractérisé en ce que ladite membrane comprend un matériau différent de ladite matière plastique. Elle peut ainsi inclure un film métallique.This method may further be characterized in that said membrane comprises a material different from said plastic material. It can thus include a metallic film.
Dans un mode de mise en oeuvre particulier, on utilise une membrane sous forme d'un ruban, déplacé en translation après chaque moulage d'une ébauche, de manière à réaliser successivement un ensemble d'ébauches sous forme d'un chapelet d'ébauches réunies par la membrane.In a particular embodiment, a membrane in the form of a ribbon is used, displaced in translation after each molding of a blank, so as to successively produce a set of blanks in the form of a string of blanks. joined by the membrane.
Selon un deuxième aspect, l'invention a également pour objet une ébauche de récipient de stockage et de distribution de produits à plusieurs compartiments, comprenant un corps en matière plastique moulée muni d'une première extrémité ouverte pour le remplissage du récipient qui est destinée à être fermée par pincement et soudage, d'une deuxième extrémité opposée pourvue d'un moyen de distribution de produits et d'au moins une cloison interne s'étendant entre les deux extrémités et délimitant dans l'ébauche des compartiments destinés à contenir des produits respectifs.According to a second aspect, the invention also relates to a multi-compartment product storage and dispensing container blank comprising a molded plastic body having a first open end for filling the container which is intended for being closed by clamping and welding, an opposite second end provided with a product dispensing means and at least one internal partition extending between the two ends and defining in the blank compartments for containing products respectively.
Selon une caractéristique générale de cette ébauche, ladite au moins une cloison interne comprend au moins une membrane séparatrice surmoulée.According to a general characteristic of this blank, said at least one internal partition comprises at least one overmolded separating membrane.
Ainsi, grâce au surmoulage de la membrane, il est possible de s'affranchir des contraintes liées à l'épaisseur de la membrane qui apparaissent lorsque celle-ci est réalisée en même temps que le corps.Thus, thanks to overmolding of the membrane, it is possible to overcome the constraints related to the thickness of the membrane that appear when it is performed at the same time as the body.
Selon une autre caractéristique de l'invention, la ou chaque membrane comprend un matériau différent de celui du corps.According to another characteristic of the invention, the or each membrane comprises a material different from that of the body.
Par l'expression « matériaux différents », on entend des matériaux ayant une composition différente, mais ce terme englobe également des matériaux ayant la même molécule chimique et des caractéristiques physicochimiques différentes.By the term "different materials" is meant materials having a different composition, but this term also includes materials having the same chemical molecule and different physicochemical characteristics.
Ainsi, par exemple, la membrane comporte un film métallique, notamment une feuille d'aluminium. On peut également réaliser, en variante, la membrane séparatrice sous la forme d'une structure multicouche. Par exemple, la structure multicouche peut comprendre une feuille métallique centrale et deux couches latérales en matière plastique.Thus, for example, the membrane comprises a metal film, in particular an aluminum foil. Alternatively, the separating membrane can be made in the form of a multilayer structure. For example, the multilayer structure may comprise a central metal sheet and two plastic side layers.
Selon encore une autre caractéristique de l'invention, la membrane séparatrice comporte une largeur, considérée selon une direction transversale du récipient, égale à un demi périmètre du corps.According to yet another characteristic of the invention, the separating membrane has a width, considered in a transverse direction of the container, equal to half a perimeter of the body.
Dans ce cas, la membrane comporte par exemple des replis longitudinaux délimitant une succession de portions concaves décalées par rapport à un plan longitudinal médian du corps et tournées alternativement vers les compartiments.In this case, the membrane comprises for example longitudinal folds delimiting a succession of concave portions offset relative to a median longitudinal plane of the body and alternately turned towards the compartments.
Dans un mode de réalisation avantageux, la membrane comporte un seul repli central à concavité tournée vers un premier compartiment et deux replis latéraux s'étendant de part et d'autre du repli central et à concavités tournées vers un deuxième compartiment.In an advantageous embodiment, the membrane comprises a single central recess concavity turned towards a first compartment and two lateral folds extending on either side of the central fold and concavities turned towards a second compartment.
La deuxième extrémité du corps peut alors comprendre une ouverture centrale et deux ouvertures latérales, chaque ouverture débouchant dans l'une des portions concaves.The second end of the body may then comprise a central opening and two lateral openings, each opening opening into one of the concave portions.
Par exemple, la section de l'ouverture centrale est égale à la section totale des deux ouvertures latérales.For example, the section of the central opening is equal to the total section of the two lateral openings.
Mais on peut également prévoir que l'ouverture centrale et les ouvertures latérales ont des sections telles que, pour deux produits de même viscosité, le débit de produit dans l'ouverture centrale est égal à la somme des débits de produit dans les ouvertures latérales.But it is also possible that the central opening and the lateral openings have sections such that for two products of the same viscosity, the product flow in the central opening is equal to the sum of product flows in the lateral openings.
Selon un troisième aspect aspect, l'invention a également pour objet un récipient de stockage et de distribution de produits à plusieurs compartiments, comprenant un corps en matière plastique moulée muni d'une première extrémité fermée par pincement et soudage, d'une deuxième extrémité opposée pourvue d'un moyen de distribution de produits, et d'au moins une cloison interne s'étendant entre les deux extrémités et délimitant dans le corps des compartiments emplis de produits respectifs.According to a third aspect aspect, the invention also relates to a multi-compartment product storage and dispensing container, comprising a molded plastic body having a first end closed by pinching and welding, a second end. opposed provided with a product dispensing means, and at least one inner partition extending between the two ends and delimiting in the body compartments filled with respective products.
Ce récipient est caractérisé en ce que ladite au moins une cloison interne comprend au moins une membrane séparatrice surmoulée.This container is characterized in that said at least one internal partition comprises at least one overmolded separating membrane.
La membrane peut en outre comprendre un matériau différent de celui du corps.The membrane may further comprise a material different from that of the body.
Ainsi, la membrane peut comprendre un film métallique, notamment de l'aluminium. La membrane peut également être réalisée sous la forme d'une structure multicouche et comprendre une feuille métallique centrale et deux couches latérales en matière plastique.Thus, the membrane may comprise a metal film, in particular aluminum. The membrane may also be in the form of a multilayer structure and comprise a central metal sheet and two plastic side layers.
Avantageusement, la membrane comporte une largeur, considérée selon une direction transversale du récipient, égale à un demi périmètre du corps, et comporte un repli central délimitant une première partie concave tournée vers un premier compartiment et deux replis latéraux s'étendant de part et d'autre du repli central et délimitant des deuxième et troisième parties concaves à concavité tournée vers un deuxième compartiment.Advantageously, the membrane has a width, considered in a transverse direction of the container, equal to half a perimeter of the body, and comprises a central fold defining a first concave portion facing a first compartment and two lateral folds extending from one side to the other. Another of the central fold and delimiting second and third concave parts concavity turned towards a second compartment.
Par exemple, la deuxième extrémité du corps du récipient comporte une ouverture centrale et deux ouvertures latérales, chaque ouverture débouchant dans l'une des portions concaves. La section de l'ouverture centrale peut être égale à la section totale des deux ouvertures latérales. Mais on peut réaliser les ouvertures centrale et latérales de sorte que leurs sections soient telles que, pour deux produits de même viscosité, le débit de produit dans l'ouverture centrale soit égal à la somme des débits de produit dans les ouvertures latérales.For example, the second end of the body of the container has a central opening and two lateral openings, each opening opening into one of the concave portions. The section of the central opening may be equal to the total section of the two lateral openings. But the central and lateral openings can be made so that their sections are such that, for two products of the same viscosity, the flow of product in the opening equal to the sum of the product flows in the lateral openings.
Ce récipient peut en outre comporter un capot muni de picots d'obturation s'engageant dans des ouvertures centrales et latérales du corps qui débouchent respectivement vers les compartiments.This container may further comprise a cap provided with closing pins engaging in central and lateral openings of the body which open respectively to the compartments.
D'autres buts, caractéristiques et avantages de l'invention apparaîtront à la lecture de la description suivante, donnée uniquement à titre d'exemple non limitatif, et faite en référence aux dessins annexés sur lesquels :
- la
figure 1 est une vue en perspective d'une ébauche de récipient réalisée conformément à l'invention ; - la
figure 2 est une vue de dessous de l'ébauche de lafigure 1 ; - la
figure 3 est une vue en coupe selon la ligne III-III de lafigure 2 ; - la
figure 4 est une vue en élévation d'un récipient de stockage et de distribution de produits, après remplissage des compartiments et fermeture du corps ; - la
figure 5 est une vue en élévation du capot servant à l'obturation du récipient ; - la
figure 6 est une vue de profil du récipient de lafigure 4 ; et - la
figure 7 est une vue de dessous du capot.
- the
figure 1 is a perspective view of a container blank made in accordance with the invention; - the
figure 2 is a bottom view of the draft of thefigure 1 ; - the
figure 3 is a sectional view along line III-III of thefigure 2 ; - the
figure 4 is an elevational view of a product storage and dispensing container, after filling the compartments and closing the body; - the
figure 5 is an elevational view of the cap used to seal the container; - the
figure 6 is a profile view of the container of thefigure 4 ; and - the
figure 7 is a view from below of the hood.
Sur les
Cette ébauche est destinée à la réalisation d'un récipient (
Comme on le voit sur les
Le corps 2 comprend une extrémité ouverte 3 servant au remplissage du corps et destinée à être fermée par pincement et soudage après remplissage et une extrémité opposée 4 formant un col 5 pourvu d'un moyen de distribution par lequel les produits sont délivrés, lors de l'application.The
L'ébauche 1 est en outre pourvue d'une cloison interne 6 surmoulée qui comprend essentiellement un matériau différent du matériau constitutif du corps 2 de l'ébauche.The blank 1 is further provided with an internal
Le corps du récipient est par exemple réalisé en polyéthylène. En ce qui concerne la cloison, comme cela sera décrit en détail par la suite, celle-ci est par exemple réalisée à partir d'un métal, par exemple de l'aluminium. Mais on peut également utiliser un polyéthylène de grade différent ou un polyéthylène laminé.The body of the container is for example made of polyethylene. With regard to the partition, as will be described in detail later, this is for example made from a metal, for example aluminum. But one can also use a polyethylene of different grade or a laminated polyethylene.
La cloison 6 s'étend dans le corps 2 de la première extrémité 3 à la deuxième extrémité 4. Elle comporte une longueur qui correspond sensiblement à la longueur du corps 2 et une largeur sensiblement égale à un demi périmètre de ce corps.The
Dans une réalisation préférée, la longueur du corps 2 est un peu supérieure à celle de la cloison 6 de sorte que la soudure du corps après son remplissage s'effectue à la fois sur l'extrémité de la cloison, et aussi sur les deux parois du corps. On assure ainsi une bonne fermeture du récipient.In a preferred embodiment, the length of the
La cloison 6 délimite ainsi, dans le corps, un premier compartiment 7 qui est destiné à être empli d'un premier produit, et un deuxième compartiment 8 séparé, qui est destiné à être empli d'un deuxième produit.The
En se référant plus particulièrement aux
Comme le montre la
Au voisinage de l'extrémité 4, le corps 2 présente un épaulement 9 qui constitue une portée sur laquelle vient reposer un capot d'obturation. A partir de la portée, le corps se prolonge en direction de l'extrémité 4, par un nez comprenant une portion généralement tronconique 10 elle-même prolongée par un applicateur 11 cylindrique pourvu d'une face d'extrémité 12 inclinée.In the vicinity of the
Cette face d'extrémité 12 est pourvue d'un orifice central 13, qui est centré sur l'axe général X-X' du corps 2 et qui communique avec l'un des compartiments, et deux orifices latéraux 14 et 15 qui sont situés de part et d'autre de l'orifice central 13 sur un plan médian P du corps 2 et qui communiquent chacun avec l'autre compartiment.This end face 12 is provided with a
Dans le but de permettre une distribution en proportions égales des produits contenus dans les deux compartiments 7 et 8, la section de l'orifice central 13 correspond à la section globale de deux orifices latéraux 14 et 15.In order to allow a distribution in equal proportions of the products contained in the two
On voit enfin sur la
Comme le montrent les
La forme contournée de la cloison 6 est prévue pour que, d'une part, sa longueur soit égale à la longueur de la soudure du tube et pour que, d'autre part, la cloison contourne les orifices 13, 14 et 15.The contoured shape of the
Ainsi, dans l'exemple de réalisation représenté, dans lequel l'applicateur 11 comprend trois orifices 13, 14 et 15, la cloison 6 comprend trois replis, à savoir un repli central 18, à concavité tournée vers un premier compartiment 7, et deux replis latéraux 17 et 19, à concavité tournée vers l'autre compartiment 8.Thus, in the exemplary embodiment shown, in which the
Grâce à cette disposition, l'orifice central 13 débouche dans le premier compartiment 7, tandis que les orifices latéraux 14 et 15 débouchent dans l'autre compartiment 8.Thanks to this arrangement, the
En ce qui concerne la cloison 6, comme indiquée précédemment celle-ci est retenue dans le corps 2 par surmoulage.Regarding the
Elle est par exemple réalisée à partir d'aluminium.It is for example made from aluminum.
On notera cependant que cette cloison 6 est de préférence réalisée sous la forme d'une membrane multicouche et comporte un film central en aluminium et deux couches extérieures de polyéthylène solidarisées par collage au film d'aluminium. Cette structure est avantageuse dans la mesure où les deux couches externes de polyéthylène peuvent aisément être soudées à chaud avec le matériau constitutif du corps 2 lors de la fermeture de l'ouverture 3.It will be noted, however, that this
Par exemple, l'épaisseur de la cloison 6 peut être de l'ordre de 0,2 mm, celle du film d'aluminium étant de l'ordre de 12 microns. Une telle finesse permet de réaliser une cloison présentant une souplesse optimale tout en procurant une barrière totalement étanche aux composants emplissant les compartiments 7 et 8 en raison de la présence du film d'aluminium.For example, the thickness of the
En outre, la cloison 6 présente une épaisseur (contrairement à une paroi injectée) sensiblement constante sur toute sa surface si bien que la cloison a une perméabilité constante sur toute sa surface.In addition, the
Pour fabriquer l'ébauche 1, il convient tout d'abord d'insérer la membrane 6 constitutive de la cloison dans l'empreinte d'un moule, et en particulier dans un noyau central du moule, de sorte que le film déborde autour du noyau. On utilisera un noyau central conformé de manière à obtenir la forme contournée de la cloison 6. On ferme alors le moule autour de la membrane, et l'on procède à une injection de matière plastique, qui va venir se souder sur la partie libre de la membrane qui déborde dans l'empreinte. Après ouverture du moule, la pièce est éjectée puis est placée dans un outil de découpe pour enlever la partie débordante de la membrane. En variante, la membrane peut être découpée préalablement et placée précisément dans le noyau central, à l'aide d'un robot, par exemple.To manufacture the blank 1, it is first necessary to insert the
Selon un mode de mise en oeuvre particulier, on utilise une membrane sous forme de ruban que l'on déplace en translation, pas à pas, à chaque phase d'injection de manière à réaliser après démoulage un chapelet d'ébauches liées par la membrane en ruban. Cette solution est avantageuse dans la mesure où elle facilite la préhension et le positionnement des ébauches dans des machines de remplissage et de conditionnement.According to a particular embodiment, a membrane in the form of a ribbon is used which is displaced in translation, step by step, at each injection phase so as to produce, after demolding, a string of blanks bound by the membrane. in ribbon. This solution is advantageous insofar as it facilitates the gripping and positioning of the blanks in filling and packaging machines.
Dans l'un ou l'autre mode de réalisation, après formation d'une ébauche ou d'un chapelet d'ébauche, on procède à une phase de conditionnement. Pour ce faire, on transfert chaque ébauche dans un poste de remplissage, au niveau duquel elle est emplie par son extrémité ouverte 3. Au cours du remplissage, on emplit les compartiments de produits différents destinés à être mélangés extemporanément à l'application. Il convient ensuite de fermer l'extrémité ouverte du récipient par pincement et soudage. Dans la zone de soudage, la membrane 6 est alors étirée et adopte une configuration plane. On obtient alors le récipient visible sur les
On notera que l'on procède également à la réalisation d'un capot de fermeture 20 (
Ce capot adopte également une forme générale cylindrique, à base ovale, de forme complémentaire de celle de l'applicateur 11. Dès lors, le capot 20 ne peut être monté sur le col 7 que dans deux positions décalées angulairement de 180° l'une par rapport à l'autre. Le capot 20 comprend essentiellement une face d'extrémité distale 21 plane, se prolongeant par une double jupe cylindrique constituée d'une jupe interne 22 et d'une jupe externe 23. La jupe interne 22 est pourvue intérieurement d'une gorge (non représentée) destinée à coopérer avec la rainure externe 16 de l'applicateur 15 pour permettre le montage par encliquetage du capot 20 sur le corps 2.This cover also adopts a generally cylindrical shape, with an oval base, of shape complementary to that of the
En ce qui concerne la jupe externe 23, celle-ci présente des dimensions et une forme similaires à celles de la portée 9 sur laquelle elle vient reposer après encliquetage du capot 20.Regarding the
On voit enfin sur la
Ces picots sont destinés à venir obturer les orifices 13, 14 et 15 de l'applicateur 11.These pins are intended to close the
Plus particulièrement, le picot central 24 est destiné à obturer l'ouverture centrale 13, tandis que les picots latéraux 25 et 26 sont destinés à obturer les orifices latéraux 14 et 15. Le picot central 24 présente dès lors une section en coupe transversale qui correspond à celle de l'orifice central 13 et les picots latéraux 25 et 26 présentent chacun une section en coupe transversale qui correspond à la section des orifices latéraux 14 et 15. Comme indiqué précédemment, les orifices latéraux 14 et 15 débouchent dans le même compartiment 8. Les picots latéraux 25 et 26 peuvent alors venir obturer l'un ou l'autre des orifices latéraux 14 ou 15, dans les deux positions angulaires possibles du capot sans risque de pollution croisée d'une composition par l'autre.More particularly, the
Les risques de pollution sont en outre réduits, lors des ouvertures et fermetures successives du capot, grâce à la configuration des orifices 13, 14 et 15 qui sont situés sur la même ligne.The risks of pollution are further reduced, during successive opening and closing of the cover, thanks to the configuration of
On notera enfin que l'invention n'est pas limitée au mode de réalisation décrit.Finally, note that the invention is not limited to the embodiment described.
En effet, dans l'exemple de réalisation envisagé, le récipient n'est pourvu que d'une seule cloison séparatrice. Il serait également possible, en variante, de doter le récipient de plusieurs cloisons afin de ménager dans le récipient un nombre supérieur de compartiments pour le stockage d'un plus grand nombre de produits.Indeed, in the embodiment shown, the container is provided with only one separating partition. It would also be possible, alternatively, to provide the container with several partitions to provide in the container a greater number of compartments for storing a larger number of products.
De même, selon l'invention, on peut également réaliser le récipient sous une autre forme cylindrique ou non, à base carrée, rectangulaire, ronde, ...Similarly, according to the invention, it is also possible to produce the container in another cylindrical or non-cylindrical shape, with a square, rectangular or round base, etc.
On notera également que l'applicateur peut adopter toute autre forme.It should also be noted that the applicator may adopt any other form.
En effet, alors que dans la description qui vient d'être faite en référence à la
Claims (25)
- Method of producing a preform for a multicompartment container, for storing and dispensing products, by moulding a plastic injected into the cavity of a mould, the preform having a partition which extends between a first end and a second end of the container in order to delimit compartments intended to contain respective products, characterized in that, prior to the injection of the plastic, at least one diaphragm is placed in the mould cavity so as to form at least one overmoulded internal partition in the container.
- Method according to Claim 1, characterized in that said diaphragm comprises a material different from said plastic.
- Method according to either of Claims 1 and 2, characterized in that the diaphragm includes a metal film.
- Method according to any one of Claims 1 to 3, characterized in that a diaphragm in the form of a tape is used, which is moved translationally after each preform moulding operation so as to produce in succession a set of preforms in the form of a string of preforms joined together by the diaphragm.
- Container preform obtained by the method according to any one of Claims 1 to 4, comprising a moulded plastic body (2) provided with a first open end (3) for filling the container and which is designed to be closed by pinching and welding, with a second, opposite end (4) having a product dispensing means, and with at least one internal partition (6) extending between the two ends and delimiting compartments (7, 8) in the preform which are intended to contain respective products, said at least one internal partition (6) comprising at least one separating diaphragm, characterized in that said diaphragm is overmoulded.
- Preform according to Claim 5, characterized in that said diaphragm comprises a material different from that of the body (2).
- Container preform according to either of Claims 5 and 6, characterized in that the diaphragm comprises a metal film.
- Container preform according to Claim 7, characterized in that the metal film is an aluminium foil.
- Container preform according to any one of Claims 5 to 8, characterized in that the separating diaphragm (6) has a multilayer structure.
- Container preform according to Claim 9, characterized in that the multilayer structure comprises a central metal foil and two lateral plastic layers.
- Container preform according to any one of Claims 5 to 10, characterized in that the separating diaphragm has a width, in a direction transverse to the container, equal to half the perimeter of the body (2).
- Container preform according to any one of Claims 5 to 11, characterized in that the diaphragm has longitudinal pleats delimiting a series of concave portions offset with respect to a longitudinal midplane of the body and facing alternate compartments (7, 8).
- Container preform according to Claim 12, characterized in that the diaphragm (6) has a central pleat (18) having a concavity facing a first compartment (7) and two lateral pleats (17, 19) extending on either side of the central pleat and having concavities facing a second compartment (8).
- Container preform according to Claim 13, characterized in that the second end of the body comprises a central opening (13) and two lateral openings (14, 15), each opening emerging in one of the concave portions.
- Container preform according to Claim 14, characterized in that the cross section of the central opening (13) is equal to the total cross section of the two lateral openings (14, 15).
- Preform according to Claim 15, characterized in that the central opening (13) and the lateral openings (14, 15) have cross sections such that, for two products having the same viscosity, the product flow rate through the central opening is equal to the sum of the product flow rates through the lateral openings.
- Container for storing and dispensing products and obtained by the method according to any one of Claims 1 to 4, comprising a moulded plastic body (2) provided with a first end (3) closed by pinching and welding, with a second, opposite end (4) having a product dispensing means, and with an internal partition (6) extending between the two ends and delimiting compartments (7, 8) in the body which are filled with the respective products, said at least one internal partition comprising at least one separating diaphragm, characterized in that said diaphragm is overmoulded.
- Container according to Claim 17, characterized in that said diaphragm comprises a material different from that of the body.
- Container according to Claim 18, characterized in that the diaphragm comprises a metal film, in particular an aluminium film.
- Container according to any one of Claims 17 to 19, characterized in that the diaphragm has a multilayer structure and comprises a central metal foil and two lateral plastic layers.
- Container according to any one of Claims 17 to 20, characterized in that the separating diaphragm has a width, in a direction transverse to the container, equal to half the perimeter of the body and has a central pleat (18) delimiting a first concave part facing a first compartment (7) and two lateral pleats (17, 19) extending on either side of the central pleat and delimiting second and third concave parts having a concavity facing a second compartment (8).
- Container according to Claim 21, characterized in that the second end of the body has a central opening (13) and two lateral openings (14, 15), each opening emerging in one of the concave portions.
- Container according to Claim 22, characterized in that the cross section of the central opening is equal to the total cross section of the two lateral openings.
- Container according to Claim 22, characterized in that the central opening (13) and the lateral openings (14, 15) have cross sections such that, for two products having the same viscosity, the product flow rate through the central opening is equal to the sum of the product flow rates through the lateral openings.
- Container according to any one of Claims 22 to 24, characterized in that it also has a cap (20) provided with closure pins (24, 25, 26) inserted respectively into the central and lateral openings of the body.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0602128A FR2898340B1 (en) | 2006-03-10 | 2006-03-10 | BOTTOM OF CONTAINER AND CONTAINER WITH SEVERAL COMPARTMENTS FOR THE STORAGE AND DISTRIBUTION OF PRODUCTS, ESPECIALLY COSMETIC OR CARE PRODUCTS, AND PROCESS FOR MANUFACTURING SAME. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1832523A1 EP1832523A1 (en) | 2007-09-12 |
EP1832523B1 true EP1832523B1 (en) | 2009-08-05 |
Family
ID=37067526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07103627A Not-in-force EP1832523B1 (en) | 2006-03-10 | 2007-03-06 | Container preform and container with several compartments for storing and dispensing products, in particular cosmetic or care products and corresponding manufacturing process |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1832523B1 (en) |
AT (1) | ATE438573T1 (en) |
DE (1) | DE602007001813D1 (en) |
ES (1) | ES2330798T3 (en) |
FR (1) | FR2898340B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103274114B (en) * | 2013-06-03 | 2016-01-20 | 吴兴泉 | Flexible pipe |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2017292A1 (en) * | 1970-04-10 | 1971-10-21 | Dukess, Joseph William, Mamaroneck, N.Y. (V.St.A.) | Closure in connection with a compressible container |
FR2627463B1 (en) * | 1988-02-23 | 1990-06-15 | Simon Patrick | DEFORMABLE TUBULAR CONTAINER AND ITS ONE PIECE MANUFACTURING METHOD |
EP1510466B1 (en) * | 2002-05-31 | 2006-08-30 | Yoshino Kogyosho Co., Ltd. | Multi-chamber container element body |
-
2006
- 2006-03-10 FR FR0602128A patent/FR2898340B1/en not_active Expired - Fee Related
-
2007
- 2007-03-06 ES ES07103627T patent/ES2330798T3/en active Active
- 2007-03-06 DE DE602007001813T patent/DE602007001813D1/en active Active
- 2007-03-06 AT AT07103627T patent/ATE438573T1/en not_active IP Right Cessation
- 2007-03-06 EP EP07103627A patent/EP1832523B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
FR2898340A1 (en) | 2007-09-14 |
FR2898340B1 (en) | 2010-05-21 |
ES2330798T3 (en) | 2009-12-15 |
EP1832523A1 (en) | 2007-09-12 |
DE602007001813D1 (en) | 2009-09-17 |
ATE438573T1 (en) | 2009-08-15 |
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