EP3512640B1 - Dispositif et procédé de dosage dynamique de matières d'étanchéité - Google Patents

Dispositif et procédé de dosage dynamique de matières d'étanchéité Download PDF

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Publication number
EP3512640B1
EP3512640B1 EP17762112.5A EP17762112A EP3512640B1 EP 3512640 B1 EP3512640 B1 EP 3512640B1 EP 17762112 A EP17762112 A EP 17762112A EP 3512640 B1 EP3512640 B1 EP 3512640B1
Authority
EP
European Patent Office
Prior art keywords
sealant
containers
drive
components
component
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.)
Not-in-force
Application number
EP17762112.5A
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German (de)
English (en)
Other versions
EP3512640A1 (fr
Inventor
Heinz Burock
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.)
Chemetall GmbH
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Chemetall GmbH
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 Chemetall GmbH filed Critical Chemetall GmbH
Publication of EP3512640A1 publication Critical patent/EP3512640A1/fr
Application granted granted Critical
Publication of EP3512640B1 publication Critical patent/EP3512640B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1036—Means for supplying a selected one of a plurality of liquids or other fluent materials, or several in selected proportions, to the applying apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71775—Feed mechanisms characterised by the means for feeding the components to the mixer using helical screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
    • B01F35/831—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices using one or more pump or other dispensing mechanisms for feeding the flows in predetermined proportion, e.g. one of the pumps being driven by one of the flows
    • B01F35/8311—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices using one or more pump or other dispensing mechanisms for feeding the flows in predetermined proportion, e.g. one of the pumps being driven by one of the flows with means for controlling the motor driving the pumps or the other dispensing mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
    • B01F35/883—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using flow rate controls for feeding the substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1047—Apparatus or installations for supplying liquid or other fluent material comprising a buffer container or an accumulator between the supply source and the applicator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet

Definitions

  • the present invention relates to a device for the dynamic dosing of sealing compound volumes and a corresponding method.
  • Sealing compounds such as those used in aircraft and spacecraft are usually produced by mixing two components - base compound and hardener - in a mixing device and then cured on site, i.e. on the component to be coated. The latter can be done thermally and/or by actinic radiation.
  • a device (1) for this is in Fig. 1 shown:
  • the components A and B (5a, 5b) are initially in separate reservoirs (2a, 2b).
  • a suitable drive (3) preferably a servo drive, is controlled in such a way that the two components (A and B) (5a, 5b) are conveyed at a defined speed into a static mixing tube (7) and mixed with one another.
  • the dosing speed i.e. the volume of sealing compound that is applied per unit of time
  • the dosing speed must be adjusted dynamically, i.e. depending on the point to be sealed. This is also referred to as dynamic dosing.
  • U.S. 2011/253747 A1 discloses a device for the dynamic dosing of sealing compounds, having two containers for sealing compound components, a first drive, which is connected to two devices, one of which can convey one of the sealing compound components out of its container, a drive controller, a mixing unit for mixing the components from the containers funded sealant components with an opening for applying the sealant to a component.
  • this device cannot be used to achieve adequate mixing quality and dosing accuracy independently of the dosing speed.
  • the device (1) according to the invention for the dynamic dosing of sealing compounds has two containers (2a, 2b) for sealing compound components, a first drive (3) which is connected to two devices (4a, 4b), one of which each controls one of the sealing compound components (5a , 5b) from its container (2a, 2b) (conveying devices), a drive controller (6), a mixing unit (7) for mixing the sealant components (5a, 5b) conveyed from the containers (2a, 2b) with an opening (8) for applying the sealing compound (9) to a component and, in addition, a compensating tank (10) with a compensating volume (11) and a second drive (12) which is connected to a piston (13) which is inserted into the compensating volume ( 11) of the expansion tank (10) is sufficient.
  • the expansion tank (10) is connected to the mixing unit (7). Through this Connection is the expansion tank (10) filled and emptied.
  • the first and the second drive (3, 12) can be dynamically controlled together by the drive controller (6).
  • a first such device (1) according to the invention is in Fig. 2 as in Fig. 3 , a second in Fig. 4 shown, but these figures should not be understood as limiting.
  • a “sealant” should always mean the mixture of two sealant components.
  • the "first drive” can also consist of two separately controlled drive units (3a, 3b), of which the first is connected to the first and the second to the second of the two conveyor devices (4a, 4b) (cf. Fig. 4 ). According to a preferred embodiment, however, the first drive consists of a single drive unit (3) which is connected to the two conveyor devices (4a, 4b).
  • the "two containers for sealing compound components” can be storage containers (2a, 2b), ie containers that can each be filled with a certain amount of sealing compound component (5a, 5b) and then sealed (cf. Fig. 2 and Fig. 3 ).
  • the "two containers for sealant components" can be open containers (15a, 15b), ie containers that can each be continuously filled with a sealant component (5a, 5b) (cf. Fig. 4 ). In this way, an uninterrupted flow of sealant can be achieved (cf. Fig. 4 ).
  • the “mixing unit” can be a static mixer, a dynamic mixer, or a combination of both.
  • the first and/or second drive is preferably a servo drive, more preferably the first and the second drive are each a servo drive.
  • the two conveying devices are pistons, one of which reaches into one of the containers, which in this case are storage containers, and can push out the corresponding sealing compound component.
  • the two conveying devices are pumps which can draw the sealing compound components out of their containers by generating a vacuum.
  • Screw eccentric pumps and scoop piston pumps are particularly suitable for this.
  • said containers are open containers (15a, 15b), which can each be continuously filled with a sealing compound component (5a, 5b) (cf. Fig. 4 ).
  • the mixing unit is preferably a static mixer, in particular a static mixing tube.
  • the expansion tank is preferably a plastic cartridge or a component that is easy to clean, particularly preferably a plastic cartridge, in particular one made of polyethylene (PE).
  • PE polyethylene
  • the device (1) is a 2-component mixing and dosing system such as that manufactured by Hilger u. Kern (Mannheim, Germany), for example. These systems make it possible to convey, mix and dose sealant (9) consisting of 2 components (5a, 5b) from storage containers (2a, 2b) (cf. Fig. 2 and Fig. 3 ).
  • the sealing compound can also be one which essentially only cures after exposure to actinic radiation, in particular to UV radiation.
  • a sealant has the advantage that its curing can be initiated in a controlled manner with a trigger (so-called SCOD : sealant curing on demand).
  • the device according to the invention can comprise an integrated source for actinic radiation, in particular for UV radiation.
  • the containers (2a, 2b) of the device (1) according to the invention are each filled with a sealant component (5a, 5b) (components A and B or base material and hardener).
  • the sealing compound components (5a, 5b) are then mixed in a mixing unit (7) and the resulting sealing compound (9) is applied to a component by the sealing compound components (5a, 5b) being removed from the containers (2a, 2b) are funded.
  • a dosing speed below a critical value preset in the drive control (6) is achieved in that the conveying speed of the sealing compound components (5a, 5b) from the containers (2a, 2b) is reduced to the critical value of the dosing speed and the equalizing tank ( 10) is filled with sealant (9) by means of the second drive (12) in such a way that the speed at which the expansion tank (10) is filled corresponds to the difference between the critical and the realized value of the dosing speed.
  • a dosing speed of, for example, 1 volume unit of sealant/time unit is achieved by reducing the conveying speed of the sealant components (5a, 5b) from the containers (2a, 2b) to 3 volume units of sealant/time unit. Unit of time lowered and the expansion tank (10) is filled at a rate of 2 volume units of sealant / unit of time.
  • Fig. 2 shows the device (1) according to the invention at a dosing rate above the critical value.
  • the dosing rate is lower than the critical value, this is indicated by a reduction in the thickness of the bead of sealant (9).
  • the compensating volume (11) of the compensating tank (10) is filled with sealing compound.
  • the promotion of the sealing compound components from the containers is preferably stopped and the sealing compound is conveyed out of the expansion tank by means of the second drive until the sealing compound in the expansion tank is used up. This will help keep the reservoir empty enough to allow the reservoir to be refilled with sealant at a later date.
  • the sealing compound components can then continue to be conveyed from the containers by means of the first drive and at the same time the sealing compound can be conveyed from the expansion tank by means of the second drive until the sealing compound in the expansion tank is used up. This makes it possible to increase the dosing speed beyond the maximum value that would be possible with the device without the expansion tank.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Accessories For Mixers (AREA)
  • Sealing Material Composition (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Basic Packing Technique (AREA)

Claims (13)

  1. Dispositif (1) pour le dosage dynamique de masses d'étanchéité, présentant
    deux récipients (2a, 2b) pour des composants de masse d'étanchéité,
    un premier entraînement (3), qui est relié à deux appareils (4a, 4b), dont chacun peut extraire un des composants de masse d'étanchéité (5a, 5b) de son récipient (2a, 2b),
    une commande d'entraînement (6),
    une unité de mélange (7) pour le mélange des composants de masse d'étanchéité (5a, 5b) extraits des récipients (2a, 2b), comprenant une ouverture (8) pour l'application de la masse d'étanchéité (9) sur un composant,
    caractérisé en ce que le dispositif (1) présente en outre un récipient d'équilibrage (10) ayant un volume d'équilibrage (11) et
    un deuxième entraînement (12), qui est relié à un piston (13) qui s'étend dans le volume d'équilibrage (11) du récipient d'équilibrage (10),
    le récipient d'équilibrage (10) étant relié à l'unité de mélange (7), et le premier et le deuxième entraînement (3, 12) pouvant être commandés dynamiquement ensemble par la commande d'entraînement (6).
  2. Dispositif (1) selon la revendication 1, caractérisé en ce que le premier et/ou le deuxième entraînement (3, 12) est respectivement un servo-entraînement.
  3. Dispositif (1) selon la revendication 1 ou 2, caractérisé en ce que les deux appareils d'extraction (4a, 4b) consistent en des pistons, dont l'un s'étend dans un des récipients (2a, 2b) pour des composants de masse d'étanchéité, et en ce que ces derniers consistent en des récipients de stockage.
  4. Dispositif (1) selon la revendication 1 ou 2, caractérisé en ce que les deux appareils d'extraction consistent en des pompes, notamment en des pompes à vis excentrée (14a, 14b) ou des pompes à pistons.
  5. Dispositif (1) selon la revendication 4, caractérisé en ce que les deux appareils d'extraction consistent en des pompes à vis excentrée (14a, 14b) et les récipients pour des composants de masse d'étanchéité consistent en des récipients ouverts (15a, 15b), qui peuvent chacun être remplis en continu avec un composant de masse d'étanchéité (5a, 5b).
  6. Dispositif (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de mélange (7) est un mélangeur statique.
  7. Dispositif (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le récipient d'équilibrage (10) est une cartouche en matière plastique ou un composant facile à nettoyer.
  8. Dispositif (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif (1) est une installation de mélange et de dosage bicomposante.
  9. Dispositif (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend une source intégrée de rayonnement actinique.
  10. Procédé de dosage dynamique de masses d'étanchéité, caractérisé en ce que les récipients (2a, 2b) du dispositif (1) selon l'une quelconque des revendications précédentes sont chacun remplis avec un composant de masse d'étanchéité (5a, 5b), en ce que les composants de masse d'étanchéité (5a, 5b) sont mélangés dans une unité de mélange (7) et en ce que la masse d'étanchéité résultante (9) est appliquée sur un composant, par le fait que les composants de masse d'étanchéité (5a, 5b) sont extraits des récipients (2a, 2b) au moyen du premier entraînement (3),
    une vitesse de dosage inférieure à une valeur critique, préréglée dans la commande d'entraînement (6), étant réalisée par le fait que la vitesse d'extraction des composants de masse d'étanchéité (5a, 5b) des récipients (2a, 2b) est abaissée à la valeur critique de la vitesse de dosage et
    le récipient d'équilibrage (10) étant rempli de masse d'étanchéité (9) au moyen du deuxième entraînement (12) de telle sorte que la vitesse à laquelle le récipient d'équilibrage (10) est rempli correspond à la différence entre la valeur critique et la valeur réalisée de la vitesse de dosage.
  11. Procédé selon la revendication 10, caractérisé en ce qu'en cas de nouvelle augmentation de la vitesse de dosage au moins jusqu'à la valeur critique, l'extraction des composants de masse d'étanchéité (5a, 5b) des récipients (2a, 2b) est arrêtée et la masse d'étanchéité (9) est extraite du récipient d'équilibrage (10) au moyen du deuxième entraînement (12) jusqu'à ce que la masse d'étanchéité (9) soit épuisée dans le récipient d'équilibrage (10).
  12. Procédé selon la revendication 10, caractérisé en ce qu'en cas de nouvelle augmentation de la vitesse de dosage au moins jusqu'à la valeur critique, l'extraction des composants de masse d'étanchéité (5a, 5b) des récipients (2a, 2b) au moyen du premier entraînement (3) et l'extraction de la masse d'étanchéité (9) du récipient d'équilibrage (10) au moyen du deuxième entraînement (12) ont lieu simultanément, jusqu'à ce que la masse d'étanchéité (9) soit épuisée dans le récipient d'équilibrage (10).
  13. Procédé selon l'une quelconque des revendications 10 à 12, caractérisé en ce que la masse d'étanchéité (9) consiste en une qui ne durcit essentiellement qu'après exposition à un rayonnement actinique.
EP17762112.5A 2016-09-13 2017-09-05 Dispositif et procédé de dosage dynamique de matières d'étanchéité Not-in-force EP3512640B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016217429 2016-09-13
DE102016224655 2016-12-12
PCT/EP2017/072215 WO2018050482A1 (fr) 2016-09-13 2017-09-05 Dispositif et procédé de dosage dynamique de matières d'étanchéité

Publications (2)

Publication Number Publication Date
EP3512640A1 EP3512640A1 (fr) 2019-07-24
EP3512640B1 true EP3512640B1 (fr) 2022-03-16

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Family Applications (1)

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EP17762112.5A Not-in-force EP3512640B1 (fr) 2016-09-13 2017-09-05 Dispositif et procédé de dosage dynamique de matières d'étanchéité

Country Status (7)

Country Link
US (1) US11059070B2 (fr)
EP (1) EP3512640B1 (fr)
JP (1) JP6999676B2 (fr)
CN (1) CN109789436B (fr)
BR (1) BR112019003551B1 (fr)
CA (1) CA3036589A1 (fr)
WO (1) WO2018050482A1 (fr)

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EP3776133B1 (fr) * 2018-04-12 2022-05-11 Nordson Corporation Systèmes et procédés de distribution de matériaux multi-composants
CN114845817B (zh) 2019-12-19 2023-12-01 凯密特尔有限责任公司 作为燃料箱外部的密封剂的聚脲涂料体系
EP4077458B1 (fr) 2019-12-19 2026-02-11 Sika Technology AG Systèmes de revêtement en polyurée pour l'étanchéité des constructions
DE102020128115A1 (de) * 2020-10-26 2022-04-28 Dürr Systems Ag Applikationsvorrichtung zum vorzugsweise teilgeboosterten Applizieren

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JP6999676B2 (ja) 2022-02-04
US11059070B2 (en) 2021-07-13
CN109789436B (zh) 2021-07-09
CA3036589A1 (fr) 2018-03-22
BR112019003551B1 (pt) 2022-09-20
WO2018050482A1 (fr) 2018-03-22
JP2019532813A (ja) 2019-11-14
EP3512640A1 (fr) 2019-07-24
US20190232330A1 (en) 2019-08-01
CN109789436A (zh) 2019-05-21
BR112019003551A2 (pt) 2019-05-28

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