EP1092642B1 - Abgabeeinrichtung einer Zusammensetzung mit Konzentrationsgradienten - Google Patents

Abgabeeinrichtung einer Zusammensetzung mit Konzentrationsgradienten Download PDF

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Publication number
EP1092642B1
EP1092642B1 EP00402570A EP00402570A EP1092642B1 EP 1092642 B1 EP1092642 B1 EP 1092642B1 EP 00402570 A EP00402570 A EP 00402570A EP 00402570 A EP00402570 A EP 00402570A EP 1092642 B1 EP1092642 B1 EP 1092642B1
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EP
European Patent Office
Prior art keywords
container
composition
volume
orifice
siphon
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.)
Expired - Lifetime
Application number
EP00402570A
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English (en)
French (fr)
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EP1092642B2 (de
EP1092642A1 (de
Inventor
Vincent M. De Laforcade
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LOreal SA
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LOreal SA
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Priority claimed from FR9912708A external-priority patent/FR2799443B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0078—Arrangements for separately storing several components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1081—Arrangements for pumping several liquids or other fluent materials from several containers, e.g. for mixing them at the moment of pumping

Definitions

  • the present invention relates to a device for packaging and distribution of a composition, containing at least one compound, the concentration varies over at least part of the range of use of the device.
  • the composition can be of very liquid to less liquid consistency, in particular in the form of a milk or an emulsion.
  • a composition comprising either a homogeneous phase or a plurality of separate phases.
  • each active has a determined concentration.
  • concentration values of each of the active ingredients are defined by the formulator once and for all. With each use, the distributed composition has the same concentrations.
  • US-A-4,893,729 describes a device for dispensing a composition of sun protection, comprising a container defining two compartments, one containing one lotion, and the other containing a sunscreen.
  • the two compartments are in communication with a mixing chamber via respective orifices.
  • the section of the orifice connecting the mixing chamber to the compartment containing the sun filter is adjustable to vary the degree of protection of the distributed solar composition.
  • Such a device is complex.
  • the variation of concentration in sunscreen of the composition distributed is done in stages discrete whose number is necessarily reduced. Therefore, the disadvantages and the limits of such a system are numerous.
  • packaging can in particular be obtained by molding in one piece, and allowing the distribution of a composition, in particular a cosmetic composition, containing at least one compound whose concentration must vary over at least a portion of the range use of the packaging.
  • a device for packaging and distribution of a composition (C1) in particular cosmetic, pharmaceutical or dermatological, comprising: a) a first container containing said composition (C1); b) suitable means, in response to a actuation command, to allow the distribution of a given volume of said composition (C1); c) a second container containing a makeup composition (C2); and d) suitable means, in response to the distribution of said given volume of composition (C1) from the first container, to allow the passage of a fraction of said makeup composition (C2) from the second container, to the first container.
  • the mixture of the fraction of make-up composition (C2) with the composition (C1) contained in the first container is done automatically.
  • the suitable means in response to the distribution of said given volume of composition (C1) from the first container, to allow the passage of a fraction of said makeup composition (C2) from the second container, to the first container, consist of a siphon disposed between the first and the second container.
  • the siphon constitutes a preferred embodiment of the invention in the since it authorizes the molding in one piece, of the device, without requiring additional valves, or other similar means, between the two containers.
  • the distribution of the composition (C1) from the first container takes place without air intake, that is to say, without the composition volume (C1) is not replaced by a corresponding volume of air.
  • This distribution without air intake creates a vacuum inside the first container, capable of causing the suction of a corresponding volume of said make-up composition (C2) from the second container, the "corresponding volume” being of such a volume that the pressure balance is restored.
  • an air intake member is provided to allow entry in the second container an air volume corresponding substantially to the volume of distributed composition.
  • This return air element is necessary, in particular when the second container is in rigid or semi-rigid form.
  • the make-up composition is contained inside a flexible pocket, in particular in a metal / thermoplastic complex, the walls of which will be able sag on themselves in response to the loss of volume transferred from the second container to the first container In the latter case, the return air to the interior of the second container is not necessary.
  • the flexible pocket is contained in a rigid enclosure, it must be under pressure atmospheric so as to allow the deformation of the pocket.
  • composition C1 is distributed under pressure by means in particular a pumping member, such as a manually actuated pump.
  • the container may have deformable walls elastically, and be surmounted by a valve without air intake, i.e. unidirectional opening, the distribution of composition C1 being effected by pressing the walls of the first container so as to force the distribution of composition C1 through an outlet orifice on which the valve is mounted without air intake.
  • a corresponding volume of makeup is sucked from the second container This second solution is not preferred, especially when a metered dispensing precise is desired.
  • the concentration of a given compound (for example, a sunscreen) in the distributed composition corresponds to the initial concentration of the composition contained in the first container.
  • each volume of makeup added to the first container will help decrease gradually the concentration of said compound in the liquid composition distributed.
  • each volume of composition booster in the first container will help increase gradually the concentration of said compound in the liquid composition distributed.
  • the concentration of liquid composition contained in the first container will stabilize, and reach a final value at most equal to the concentration of the make-up composition in the second container.
  • the final value of the concentration of liquid composition contained in the first container will be all the closer of the concentration of the make-up composition than the volume of the second container is large compared to the volume of the first container.
  • said siphon-forming means comprise a conduit, one of which first end opens into the second container via a first orifice located near its bottom, and a second end of which opens into the first container via a second orifice located at a level lower than that of the first port.
  • said conduit has a portion located at a level higher than the maximum level of product in the second container.
  • Such means can be arranged at the level of the siphon conduit, and be in the form of a valve or valve.
  • the conduit of the siphon has at its highest point a portion on which it is of oblong section.
  • a clamp positioned on the device, opposite said portion, crushes the conduit, so as to prevent any migration of a composition towards the other.
  • Such pliers can be connected to a cap intended for removably cover the dispensing head. So at the first use, by removing the cap, the user also removes the clamp, thus authorizing the communication of the two containers.
  • the siphon includes a first portion, in communication with the first container, and a second portion in communication with the second container, each of the first and second portions having one end free closed by a removable plug, the communication of the first and second portions being made, after removal of the plugs, at the time of first use of the device.
  • the free end of the first portion can be force-fitted into the free end of the second, or vice versa. Other means of connection can be expected.
  • the distribution means consist of a pump manual actuation, an outlet orifice of the first container being closed with sealingly through an inlet duct of said manually actuated pump.
  • a pump can be connected to a dip tube, one free end of which is located near the bottom of the first container.
  • the air intake member is, where appropriate, formed of a air return port of said manually actuated pump, said air port air intake being in communication with said second container.
  • the manually operated pump can be mounted in a neck of the device, said neck opening separately on said outlet of the first container, and on an intermediate zone in communication with said second container, the member air intake being in communication with said intermediate zone.
  • the maximum filling level of the first and / or second container is located below the highest point of the siphon.
  • the liquid composition is introduced, via the outlet, into the first container, up to the level of maximum filling, which is located below the highest point of the siphon.
  • the make-up composition is introduced into the second container via the zone intermediate, up to maximum filling. In doing so, a volume of air is enclosed in the siphon, and isolates the liquid composition of the first container from the make-up composition.
  • the two containers are filled from the same container (by example from the first container) of the same identical composition.
  • the maximum filling level of the first container is located above from the highest point of the siphon.
  • the neck has a thread pitch capable of cooperating with a pitch of corresponding screw of a distributor head on which the pump is mounted.
  • the dispensing head can be removably capped with a cap.
  • the makeup composition in the second container is such that the curve representing the concentration of at least one compound present in the liquid composition pumped from the first container, in depending on the number of doses pumped, has a portion with a slope positive.
  • the compound can be a self-tanning active ingredient.
  • the makeup composition in the second container is such that the curve representing the concentration of at least one compound present in the liquid composition pumped from the first container, depending on the number of pumped doses, has a portion with a negative slope.
  • the compound can be a sun filter.
  • the device 1 according to a mode of particular embodiment comprises a body 2, rigid or semi-rigid, the cross section of which transverse is elongated.
  • the body 2 is surmounted by a neck 3, one of which free edge 4 delimits an opening in which a pump is mounted manual actuation 5.
  • the neck 3 as well as the pump 5, are arranged along an axis X.
  • the pump 5 is surmounted by a dispensing head 6, comprising a portion axially movable 7, so as to allow actuation of the pump 5, and the outlet of the composition to be dispensed via an orifice 8.
  • the dispensing head 6 includes a thread (not shown) capable of cooperating with a thread corresponding provided on the outside surface of the neck 3.
  • the body 2 defines two volumes, defining a first container 11 intended for receive the composition to be dispensed C1, and a second container 12 intended for receive a make-up composition C2, capable of modifying the concentration of at least a compound of composition C1 contained in the first container
  • the first container 11 comprises an outlet orifice 13 arranged along the axis X, and intended to receive in leaktight manner an inlet duct 14 of the pump 5.
  • the inlet conduit is extended by a dip tube 15, one free end of which is located substantially at the bottom of the first container 11.
  • the first container 11 has a maximum filling level corresponding substantially to the surface transverse 17, formed inside the container 11, and into which opens outlet 13.
  • the second container 12 is disposed slightly offset axially at the above the first container 11, and is of volume substantially identical to the volume of the first container 11.
  • the second container 12 is in communication with an intermediate zone 18 located in the extension of the neck 3, above of the first container 11.
  • a portion of larger section 19 of the inlet duct 14 of the pump 5 is located inside said zone intermediate.
  • This portion of larger section of the conduit 14 is provided with a air return port 20 of the pump.
  • the air intake orifice communicates with the second container 12, and is isolated from the first container 11.
  • the maximum filling level of the second container 12 corresponds substantially at the level of the wall in which the orifice 13 of the first container 11.
  • the first container 11 is connected to the second container via a siphon 30 formed by a conduit one end 31 of which is in communication with the second container 12 via an orifice 32 formed at the bottom of the second container 12.
  • the conduit forming siphon 30 has a first portion 33 rising over substantially the entire height of the body 2 of the device, up to a U-shaped portion, 34, which extends by a portion 35, descending over substantially the entire height of the body 2.
  • the highest point 39 of the siphon duct 30 is located axially, substantially at the maximum filling level of the second container 12.
  • the portion 35 is extended by a part folded at 90 °, 36 including one end 37 communicates via an orifice 38 with the first container 11.
  • the orifice 38 is located in below the orifice 32 for communication with the second container 12.
  • Areas junction 40 in the form of a thick wall are formed between the first container, the second container, and the different portions of the siphon duct 30.
  • the body of the container is obtained by molding in a single piece of a material such than polyethylene or polypropylene.
  • the siphon 30 has, in the vicinity of the top of the U, 34, a hollow section of oblong shape, which can be crushed using a removable clamp 41 connected via a cord 42, to a removable cap 43 intended to cover the head of distribution 6 between two uses.
  • the clamp 41 isolates hermetically the make-up composition C2 contained in the second container 12 of the liquid composition C1 contained in the first container 11. We reduce thus, the risks of untimely migration from one composition to another, especially when transporting the device before its first use.
  • the clamp 41 can be mounted before filling of the two containers 11, 12, between the filling of the first container 11 and filling the second container 12, or after filling the two containers 11, 12.
  • the liquid composition C1 is introduced into the first container 11, via the orifice 13, and this, until reaching the corresponding maximum level substantially to the transverse wall 17.
  • the composition C1 also rises in the portion 35 siphon 30, without however reaching the highest point 39 of the U-shaped portion, 34.
  • the clamp 41 is placed on the portion of oblong section 45 of the siphon 30.
  • a filling rod cubit is introduced into the second container 12.
  • the makeup composition C2 is introduced into the second container 12, until a filling level is reached maximum located below the wall in which the orifice 13 of the first container 11.
  • Composition C2 also rises in portion 33 of the siphon 30, preceded by an air volume 50.
  • the distribution head 6 is screwed onto the neck 3 of the bottle, with the inlet conduit 14 in sealed engagement inside orifice 13 (see Figures 1B and 2B).
  • the cap 43 (FIG. 2A) connected to the clamp 41 is positioned on the dispensing head 6. The device is thus ready for use.
  • FIG. 4A by actuating the pump 5 for the first time, a composition corresponding to the liquid composition C1 initially contained in the first container 11 is dispensed.
  • an identical volume of composition C1, contained in portion 35 of the siphon 30 is aspirated so as to replace the pumped volume of C1.
  • Recovery of air inside the second container 12 is done via the air intake orifice 20 of the pump.
  • the concentration of distributed composition is constant, and corresponds to the initial concentration of the composition C1.
  • composition C2 actually begins to enter the first container 11.
  • the number of pumps corresponding to this first phase actually depends on the composition volume C1 initially present in the portion 35 of the siphon 30, of the volume of air possibly trapped between C1 and C2 inside the siphon 30, and the volume of the dose pumped by the pump 5.
  • the composition liquid C1 has a concentration located at an intermediate level between its initial concentration and the initial concentration of the composition C2.
  • the report volumes of the first and second containers is a determining factor for the value of the final concentration of composition C1 in the first container During this phase, at each pumping of composition C1, the volume pumped is no longer replaced by a corresponding volume from container 12. As a result, the level in the container 11 gradually decreases. the concentration of composition C1 is constant. This last phase is continues until the first container 11 is completely emptied.
  • such a distribution comprises three main phases: a first phase (generally the shortest) in which only composition C1 is distributed; a second phase in which a mixture of compositions C1 and C2, according to a concentration increasing or decreasing gradually ; and a third phase in which the distributed composition is at constant concentration, which concentration is at most equal to the concentration of the make-up composition C2 initially present in the second container.
  • a first phase generally the shortest
  • a second phase in which a mixture of compositions C1 and C2, according to a concentration increasing or decreasing gradually
  • a third phase in which the distributed composition is at constant concentration, which concentration is at most equal to the concentration of the make-up composition C2 initially present in the second container.
  • each of the three phases, and the slope of the curve in the second phase are adjusted at will by choosing appropriately the main parameters of the device, such as the volumes of each container, the initial concentrations of each of compositions C1 and C2, the volume of the pumped dose, and the configuration of the siphon.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Package Specialized In Special Use (AREA)
  • Cosmetics (AREA)
  • Detergent Compositions (AREA)
  • Packages (AREA)
  • Medicinal Preparation (AREA)

Claims (20)

  1. Vorrichtung (1) zur Verpackung und Ausgabe einer Zusammensetzung (C1), insbesondere einer kosmetischen, pharmazeutischen oder dermatologischen Zusammensetzung, die aufweist: a) einen ersten, die Zusammensetzung (C1) enthaltenden Behälter (11), b) Mittel (5), die in der Lage sind, als Reaktion auf einen Betätigungsbefebl die Ausgabe eines gegebenen Volumens der Zusammensetzung (C1) zu ermöglichen, c) einen zweiten Behälter (12), der eine Zusatz-Zusammensetzung (C2) enthält, gekennzeichnet durch Mittel (30), die in der Lage sind, als Reaktion auf die Ausgabe des gegebenen Volumens der Zusammensetzung (C1) aus dem ersten Behälter (11) den Übergang eines Bruchteils der Zusatz-Zusammensetzung (C2) vom zweiten Behälter (12) in den ersten Behälter (11) zu ermöglichen,
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass Mittel (13, 14, 20) vorgesehen sind, damit das im ersten Behälter (11) enthaltene Volumen der Zusammensetzung (C1) im wesentlichen konstant bleibt, solange noch Zusatz-Zusammensetzung (C2) im zweiten Behälter (12) vorhanden ist.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Ausgabe der Zusammensetzung (C1) aus dem ersten Behälter (11) ohne Luftaufnahme ins Innere des ersten Behälters (11) erfolgt.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass sie ein Luftaumahmeorgan (20) aufweist, um den Eintritt eines Luftvolumens, das im wesentlichen dem Volumen des Bruchteils der Zusammensetzung (C2) entspricht, der in den ersten Behälter (11) übertragen wird, in den zweiten Behälter zu ermöglichen.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Mittel (30), die in der Lage sind, als Reaktion auf die Ausgabe des gegebenen Volumens der Zusammensetzung (C1) aus dem ersten Behälter (11) den Übergang eines Bruchteils der Zusatz-Zusammensetzung (C2) aus dem zweiten Behälter (12) in den ersten Behälter (11) zu ermöglichen, aus einem Siphon (30) bestehen.
  6. Vorrichtung (1) nach Anspruch 5, dadurch gekennzeichnet, dass die einen Siphon (30) bildenden Mittel einen Kanal aufweisen, von dem ein erstes Ende (31) über eine erste Öffnung (32), die sich in der Nähe seines Bodens befindet, in den zweiten Behälter (12) mündet, und von dem ein zweites Ende (37) über eine zweite Öffnung (38), die sich auf einem niedrigeren Niveau als die erste Öffnung (32) befindet, in den ersten Behälter (11) mündet.
  7. Voxtichtung (1) nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass der maximale Füllpegel (17) des ersten Behälters (11) und/oder der maximale Füllpegel des zweiten Behälters (12) sich unterhalb des höchsten Punkts (39) des Siphons (30) befinden.
  8. Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass der maximale Füllpegel (17) des ersten Behälters (11) und/oder der maximale Füllpegel des zweiten Behälters (12) sich oberhalb des höchsten Punkts (39) des Siphons (30) befinden.
  9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Ausgabemittel (5) aus einer handbetätigten Pumpe (5) bestehen.
  10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Pumpe (5) so gestaltet ist, dass bei jeder Betätigung eine bestimmte Menge der Zusammensetzung (C1) ohne Luftaufnahme im Inneren des ersten Behälters (11) entnommen wird, und dass dafür ein entsprechendes Luftvolumen in den zweiten Behälter (12) eingeführt wird.
  11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass eine Ausgangsöffnung (13) des ersten Behälters (11) von einem Eingangskanal (14) der handbetätigten Pumpe (5) dicht verschlossen wird.
  12. Vorrichtung nach einem der Ansprüche 9 bis 11, dadurch gekennzeichnet, dass die Pumpe (5) mit einem Tauchrohr (15) verbunden ist, von dem ein freies Ende sich in der Nähe des Bodens des ersten Behälters (11) befindet.
  13. Vorrichtung nach Anspruch 4 sowie einem der Ansprüche 9 bis 12, dadurch gekennzeichnet, dass das Luftaufnahmeorgan aus einer Luftaufnahmeöffnung (20) der handbetätigten Pumpe (5) gebildet wird, wobei die Luftaufnahmeöffnung (20) mit dem zweiten Behälter (12) in Verbindung steht.
  14. Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, dass die handbetätigte Pumpe (5) in einen Hals (3) der Vorrichtung eingesetzt ist, wobei der Hals (3) getrennt an der Ausgangsöffnung (13) des ersten Behälters (11) und an einer Zwischenzone (18) mündet, die mit dem zweiten Behälter (12) in Verbindung steht, wobei das Luftaufnahmeorgan (20) mit der Zwischenzone (18) in Verbindung steht.
  15. Vorrichtung nach einem der Ansprüche 9 bis 14, dadurch gekennzeichnet, dass der Hals (3) einen Gewindegang aufweist, der mit einem entsprechenden Gewindegang eines Ausgabekopfes (6) zusammenwirken kann, auf den die Pumpe (5) montiert ist.
  16. Vorrichtung nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, dass Mittel (41) vorgesehen sind, um vor der ersten Benutzung eine lösbare Barriere zwischen der Zusammensetzung (C1) des ersten Behälters und der Zusatz-Zusammensetzung (C2) zu bilden.
  17. Vorrichtung nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, dass die Zusatz-Zusammensetzung (C2) im zweiten Behälter (12) derart ist, dass die Kurve, die die Konzentration zumindest einer der in der aus dem ersten Behälter (11) ausgegebenen Zusammensetzung (C1) vorhandenen Verbindungen darstellt, in Abhängigkeit von der Anzahl an gepumpten Dosen einen Abschnitt mit positiver Neigung aufweist.
  18. Vorrichtung nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, dass die Zusatz-Zusammensetzung (C2) im zweiten Behälter (12) derart ist, dass die Kurve, die die Konzentration zumindest einer der in der aus dem ersten Behälter (11) ausgegebenen Zusammensetzung (C1) vorhandenen Verbindungen darstellt, in Abhängigkeit von der Anzahl der ausgegebenen Dosen einen Abschnitt mit negativer Neigung aufweist.
  19. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie durch Gießformen in einem Stück aus einem insbesondere thermoplastischen Material wie einem Polypropylen oder einem Polyethylen erhalten wird.
  20. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Verbindung eine einen Sonnenschutzfilter bildende Verbindung, ein kosmetischer, pharmazeutischer oder dermatologischer Wirkstoff ist.
EP00402570A 1999-10-12 2000-09-18 Abgabeeinrichtung einer Zusammensetzung mit Konzentrationsgradienten Expired - Lifetime EP1092642B2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9912708A FR2799443B1 (fr) 1999-10-12 1999-10-12 Dispositif de distribution d'une composition a gradient de concentration
FR9912708 1999-10-12
FR9913024A FR2799444B1 (fr) 1999-10-12 1999-10-19 Dispositif de distribution d une composition a gradient de concentration
FR9913024 1999-10-19

Publications (3)

Publication Number Publication Date
EP1092642A1 EP1092642A1 (de) 2001-04-18
EP1092642B1 true EP1092642B1 (de) 2003-05-21
EP1092642B2 EP1092642B2 (de) 2009-05-06

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EP00402570A Expired - Lifetime EP1092642B2 (de) 1999-10-12 2000-09-18 Abgabeeinrichtung einer Zusammensetzung mit Konzentrationsgradienten

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US (2) US6450366B1 (de)
EP (1) EP1092642B2 (de)
JP (1) JP3416106B2 (de)
CN (1) CN1131824C (de)
AR (1) AR023274A1 (de)
AT (1) ATE240880T1 (de)
BR (1) BR0004860B1 (de)
CA (1) CA2323132C (de)
DE (1) DE60002813T3 (de)
ES (1) ES2199127T5 (de)
FR (1) FR2799444B1 (de)
MX (1) MXPA00009772A (de)

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SG111923A1 (en) 2000-12-21 2005-06-29 Semiconductor Energy Lab Light emitting device and method of manufacturing the same
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AR023274A1 (es) 2002-09-04
CA2323132C (fr) 2005-03-08
EP1092642B2 (de) 2009-05-06
JP3416106B2 (ja) 2003-06-16
BR0004860A (pt) 2001-05-29
FR2799444A1 (fr) 2001-04-13
EP1092642A1 (de) 2001-04-18
FR2799444B1 (fr) 2001-12-14
US6450366B1 (en) 2002-09-17
CN1131824C (zh) 2003-12-24
DE60002813T2 (de) 2004-04-08
ES2199127T3 (es) 2004-02-16
MXPA00009772A (es) 2002-12-16
CA2323132A1 (fr) 2001-04-12
CN1297839A (zh) 2001-06-06
JP2001139077A (ja) 2001-05-22
ES2199127T5 (es) 2009-10-05
US20020113081A1 (en) 2002-08-22
DE60002813D1 (de) 2003-06-26
US6736169B2 (en) 2004-05-18
ATE240880T1 (de) 2003-06-15
DE60002813T3 (de) 2009-12-03
BR0004860B1 (pt) 2010-09-21

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