CA2968596C - Plate element for a plate heat exchanger - Google Patents
Plate element for a plate heat exchanger Download PDFInfo
- Publication number
- CA2968596C CA2968596C CA2968596A CA2968596A CA2968596C CA 2968596 C CA2968596 C CA 2968596C CA 2968596 A CA2968596 A CA 2968596A CA 2968596 A CA2968596 A CA 2968596A CA 2968596 C CA2968596 C CA 2968596C
- Authority
- CA
- Canada
- Prior art keywords
- layer
- plate element
- plate
- support layer
- membrane layer
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0015—Heat and mass exchangers, e.g. with permeable walls
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Laminated Bodies (AREA)
Abstract
A plate element (1) for a heat exchanger is designed as an at least two-layered laminate assembly (1). Said laminate assembly (1) includes a membrane layer (2) which allows enthalpy between two fluid flows separated by the plate element (1) to be transferred, and at least one support layer (3, 4) which is made of a broken-through, deformable material and which allows the plate element (1) to be provided with a given mechanical rigidity and three-dimensional structure and maintain said rigidity and structure.
Description
PLATE ELEMENT FOR A PLATE HEAT EXCHANGER
The invention relates to a plate element for a plate heat exchanger.
Plate elements of this type are usual in most diverse forms and made of numerous different materials.
Starting from this, it is the object of the invention to provide a plate element for a plate heat exchange which on the one hand can be manufactured at low expense, has a comparatively low weight and nevertheless has exceptional enthalpy exchange properties in addition to the usual heat exchange properties. In addition to sensitive heat or temperature, moisture or water vapour should also be transferred or exchanged between different fluid streams.
This object is solved according to the invention by a plate element for a plate heat exchanger in which the plate element is an at least two-layered laminate assembly comprising a membrane layer by means of which enthalpy can be transferred between two fluid streams separated by the plate element and at least one support layer which consists of a broken-through and deformable material and by means of which the plate element can be provided with a predefinable mechanical strength and a spatial structure and this can be maintained.
Such a plate element can be manufactured at low expense with the desired properties.
The membrane layer of the plate element according to the invention can advantageously be configured as a plastic membrane layer.
The at least one support layer of the plate element according to the invention can be configured as a woven fabric or nonwoven layer at comparatively low expense, wherein the necessarily broken-through structure of the support layer is advantageously obtained by the selection of the said materials.
In order to provide the plate element according to the invention with the predefinable mechanical strength and the desired spatial structure with technically constructive low expenditure, it is advantageous if the at least one support layer of the plate element is formed from a thermally deformable material.
In an advantageous embodiment of the plate element according to the invention, this is configured as a three-layered laminate assembly, having a further support layer which is disposed on the side of the membrane layer facing away from the first support layer and by means of which the plate element can be provided with a predefinable mechanical strength and a spatial structure and this can be maintained.
A flat, point-by-point, strip or grid-shaped connection of each support layer to the membrane layer can be achieved by means of material properties of each support layer and/or membrane layer.
In this case, no additional connecting means such as adhesives or the like are then required.
Alternatively however it is also possible to achieve the flat, point-by-point, strip or grid-shaped and adhesive connection of
The invention relates to a plate element for a plate heat exchanger.
Plate elements of this type are usual in most diverse forms and made of numerous different materials.
Starting from this, it is the object of the invention to provide a plate element for a plate heat exchange which on the one hand can be manufactured at low expense, has a comparatively low weight and nevertheless has exceptional enthalpy exchange properties in addition to the usual heat exchange properties. In addition to sensitive heat or temperature, moisture or water vapour should also be transferred or exchanged between different fluid streams.
This object is solved according to the invention by a plate element for a plate heat exchanger in which the plate element is an at least two-layered laminate assembly comprising a membrane layer by means of which enthalpy can be transferred between two fluid streams separated by the plate element and at least one support layer which consists of a broken-through and deformable material and by means of which the plate element can be provided with a predefinable mechanical strength and a spatial structure and this can be maintained.
Such a plate element can be manufactured at low expense with the desired properties.
The membrane layer of the plate element according to the invention can advantageously be configured as a plastic membrane layer.
The at least one support layer of the plate element according to the invention can be configured as a woven fabric or nonwoven layer at comparatively low expense, wherein the necessarily broken-through structure of the support layer is advantageously obtained by the selection of the said materials.
In order to provide the plate element according to the invention with the predefinable mechanical strength and the desired spatial structure with technically constructive low expenditure, it is advantageous if the at least one support layer of the plate element is formed from a thermally deformable material.
In an advantageous embodiment of the plate element according to the invention, this is configured as a three-layered laminate assembly, having a further support layer which is disposed on the side of the membrane layer facing away from the first support layer and by means of which the plate element can be provided with a predefinable mechanical strength and a spatial structure and this can be maintained.
A flat, point-by-point, strip or grid-shaped connection of each support layer to the membrane layer can be achieved by means of material properties of each support layer and/or membrane layer.
In this case, no additional connecting means such as adhesives or the like are then required.
Alternatively however it is also possible to achieve the flat, point-by-point, strip or grid-shaped and adhesive connection of
2 each support layer to the membrane layer by means of a binder, preferably by a hot melt adhesive.
The nonwoven layers can advantageously be formed from a polyester nonwoven.
This polyester nonwoven should expediently have a weight between 20 and 80, preferably of about 50 g/m2.
In order to ensure the permeability of the polyester nonwoven for liquid and therefore the removal of liquid to the plastic membrane layer, it is advantageous if the polyester nonwoven is hygroscopically adjustable.
This can expediently be achieved whereby the polyester nonwoven has a coating made of a zeolite and a binder.
The enthalpy transfer properties of the plastic membrane layer can be achieved with comparatively low expenditure if the plastic membrane layer is formed from a polymer or polyurethane material.
Expediently the previously described plate elements can be interlocked and welded or adhesively bonded at their edges so that they can be joined together to form a plate heat exchanger with an extremely low technical constructive expenditure.
In a method according to the invention for manufacturing a plate element for a plate heat exchanger, an at least two-layered laminate assembly comprising a membrane layer, preferably a plastic membrane layer and at least one support layer, preferably a nonwoven layer in each case is prepared in a flat
The nonwoven layers can advantageously be formed from a polyester nonwoven.
This polyester nonwoven should expediently have a weight between 20 and 80, preferably of about 50 g/m2.
In order to ensure the permeability of the polyester nonwoven for liquid and therefore the removal of liquid to the plastic membrane layer, it is advantageous if the polyester nonwoven is hygroscopically adjustable.
This can expediently be achieved whereby the polyester nonwoven has a coating made of a zeolite and a binder.
The enthalpy transfer properties of the plastic membrane layer can be achieved with comparatively low expenditure if the plastic membrane layer is formed from a polymer or polyurethane material.
Expediently the previously described plate elements can be interlocked and welded or adhesively bonded at their edges so that they can be joined together to form a plate heat exchanger with an extremely low technical constructive expenditure.
In a method according to the invention for manufacturing a plate element for a plate heat exchanger, an at least two-layered laminate assembly comprising a membrane layer, preferably a plastic membrane layer and at least one support layer, preferably a nonwoven layer in each case is prepared in a flat
3 form on both sides of the plastic membrane layer, after which this flat laminate assembly is provided by means of a single deformation step with a spatial, load-bearing and maintainable structure. In this deformation step it is possible to use those tools which are also used in plate elements made of materials known from the prior art. Hence, no expensive modification etc.
of existing production installations are required.
Expediently in the deformation step an adhesive connection is simultaneously made between each support layer and the membrane layer. The expenditure for the manufacture of the plate element according to the invention can thus be comparatively low.
The deformation accompanying the production of the adhesive connection is accomplished by means of pressing at a maximum of <160 degrees C. This ensures that the enthalpy transfer characteristics of the membrane layer are not adversely influenced.
The hygroscopic adjustment of the support or nonwoven layers can be achieved with a comparatively low expenditure by providing the support or nonwoven layers with a coating made of a zeolite and a binder by means of a dipping or spraying process.
As a result of the hygroscopic adjustment of the support or nonwoven layers, if a hydrophilic adjustment of the support or nonwoven layers is provided, it can be achieved that water deposited in the support or nonwoven layers is distributed uniformly over the surface of the support or nonwoven layers with the result that the permeability of the plate element overall is maintained.
of existing production installations are required.
Expediently in the deformation step an adhesive connection is simultaneously made between each support layer and the membrane layer. The expenditure for the manufacture of the plate element according to the invention can thus be comparatively low.
The deformation accompanying the production of the adhesive connection is accomplished by means of pressing at a maximum of <160 degrees C. This ensures that the enthalpy transfer characteristics of the membrane layer are not adversely influenced.
The hygroscopic adjustment of the support or nonwoven layers can be achieved with a comparatively low expenditure by providing the support or nonwoven layers with a coating made of a zeolite and a binder by means of a dipping or spraying process.
As a result of the hygroscopic adjustment of the support or nonwoven layers, if a hydrophilic adjustment of the support or nonwoven layers is provided, it can be achieved that water deposited in the support or nonwoven layers is distributed uniformly over the surface of the support or nonwoven layers with the result that the permeability of the plate element overall is maintained.
4 According to an embodiment, there is provided a method for producing a plate element for plate heat exchangers, which is an at least two-layered arrangement, having a layer made of plastic for transferring enthalpy between two fluid flows separated by the plate element, and at least one perforated layer, wherein the plate element is designed as a laminate arrangement, wherein the layer for transferring enthalpy is designed as a membrane layer, wherein the at least one perforated layer is designed as a support layer and made from a perforated and deformable material, and wherein the plate element has a three-dimensional, spatial structure, which is maintained by the at least one perforated support layer giving a predeterminable integrity and strength to the plate element, in which the at least two-layered laminate arrangement made of the membrane layer and the at least one support layer is produced in planar form and this planar laminate arrangement is provided with a spatial, load-bearing and maintainable structure by means of a deformation step.
According to another embodiment, there is provided a plate element for plate heat exchangers produced according to the method as described herein.
4a Date Recue/Date Received 2023-02-16 The invention is explained in detail hereinafter by means of an embodiment with reference to the drawings, in which the only figure shows a schematic diagram of a plate element according to the invention which can be joined together with further plate elements of the same type to form a plate heat exchanger.
The plate element 1 shown in the single figure is not shown to scale in this figure but merely schematically. In the exemplary embodiment of the plate element 1 according to the invention, this is configured as a three-layered laminate assembly 1.
This three-layered laminate assembly 1 includes a plastic membrane 2 arranged centrally in the laminate assembly 1, a first nonwoven layer 3 arranged above the plastic membrane layer 2 in the figure and a second nonwoven layer 4 arranged below the plastic membrane layer 2 in the figure.
By means of the plastic membrane layer 2, enthalpy can be transferred between two fluid streams not shown in the figure, wherein one of the fluid streams flows above the plate element 1 and the other of the two fluid streams flows below the plate element 1.
In the exemplary embodiment shown the plastic membrane layer 2 is formed from a polyurethane material.
The first nonwoven layer 3 and the second nonwoven layer 4 are formed from a thermally deformable nonwoven material, in the exemplary embodiment shown from a polyester nonwoven. The polyester nonwoven has a weight of 50 g/m2. Furthemore the polyester nonwoven is configured to be hygroscopically adjustable, wherein for this purpose the polyester nonwoven is provided with a coating which consists of a suitable zeolite and a binder.
By means of the two nonwoven layers 3, 4 it is achieved that the plate element 1 acquires a predefinable mechanical strength and a spatial structure. This mechanical strength and this spatial structure can be maintained for the duration of usage of the plate element in a plate heat exchanger.
Between the plastic membrane layer 2 on the one hand and the nonwoven layers 3, 4 on the other hand, a flat adhesive connection is provided. In the exemplary embodiment of the plate element 3 shown in the single figure this can be implemented by means of the material properties of the polyester nonwoven forming the nonwoven layers 3, 4 and/or by means of material properties of the plastic membrane layer 2.
Alternatively it is possible to achieve this adhesive connection by means of a binder, preferably by means of a hot melt adhesive.
In order to manufacture a plate heat exchanger from the previously described plate elements 1, these can be interlocked and welded at their edges. This creates separate flow channels for the one fluid stream and for the other fluid stream. Through the plate elements 1 enthalpy can be exchanged between the fluid streams.
In order to produce the plate element 1, a flat three-layered laminate assembly 1 is firstly created. In this case the plastic membrane layer 2 is placed on the lower nonwoven layer 4 and the upper nonwoven layer 1 is placed on the plastic membrane layer 2. Then the plate element 1 is created by means of a single process step which is used both for deformation, i.e. creation of a spatial structure for the plate element 1 and also for flat connection between the plastic membrane layer 2 on the one hand and the two nonwoven layers 3, 4 on the other hand. The same tools which are also used in the manufacture of conventional plate elements are also used for this process step.
Furthermore a maximum temperature which is 160 degrees C is not exceeded in this process step. This ensures that the plastic membrane layer 2 retains its enthalpy permeability required for its correct functioning.
For the hygroscopic adjustment of the two nonwoven layers 3, 4 these are provided with a coating of a zeolite and a binder, wherein this coating can be produced by a dipping or a spraying process.
Date Recue/Date Received 2021-12-24
According to another embodiment, there is provided a plate element for plate heat exchangers produced according to the method as described herein.
4a Date Recue/Date Received 2023-02-16 The invention is explained in detail hereinafter by means of an embodiment with reference to the drawings, in which the only figure shows a schematic diagram of a plate element according to the invention which can be joined together with further plate elements of the same type to form a plate heat exchanger.
The plate element 1 shown in the single figure is not shown to scale in this figure but merely schematically. In the exemplary embodiment of the plate element 1 according to the invention, this is configured as a three-layered laminate assembly 1.
This three-layered laminate assembly 1 includes a plastic membrane 2 arranged centrally in the laminate assembly 1, a first nonwoven layer 3 arranged above the plastic membrane layer 2 in the figure and a second nonwoven layer 4 arranged below the plastic membrane layer 2 in the figure.
By means of the plastic membrane layer 2, enthalpy can be transferred between two fluid streams not shown in the figure, wherein one of the fluid streams flows above the plate element 1 and the other of the two fluid streams flows below the plate element 1.
In the exemplary embodiment shown the plastic membrane layer 2 is formed from a polyurethane material.
The first nonwoven layer 3 and the second nonwoven layer 4 are formed from a thermally deformable nonwoven material, in the exemplary embodiment shown from a polyester nonwoven. The polyester nonwoven has a weight of 50 g/m2. Furthemore the polyester nonwoven is configured to be hygroscopically adjustable, wherein for this purpose the polyester nonwoven is provided with a coating which consists of a suitable zeolite and a binder.
By means of the two nonwoven layers 3, 4 it is achieved that the plate element 1 acquires a predefinable mechanical strength and a spatial structure. This mechanical strength and this spatial structure can be maintained for the duration of usage of the plate element in a plate heat exchanger.
Between the plastic membrane layer 2 on the one hand and the nonwoven layers 3, 4 on the other hand, a flat adhesive connection is provided. In the exemplary embodiment of the plate element 3 shown in the single figure this can be implemented by means of the material properties of the polyester nonwoven forming the nonwoven layers 3, 4 and/or by means of material properties of the plastic membrane layer 2.
Alternatively it is possible to achieve this adhesive connection by means of a binder, preferably by means of a hot melt adhesive.
In order to manufacture a plate heat exchanger from the previously described plate elements 1, these can be interlocked and welded at their edges. This creates separate flow channels for the one fluid stream and for the other fluid stream. Through the plate elements 1 enthalpy can be exchanged between the fluid streams.
In order to produce the plate element 1, a flat three-layered laminate assembly 1 is firstly created. In this case the plastic membrane layer 2 is placed on the lower nonwoven layer 4 and the upper nonwoven layer 1 is placed on the plastic membrane layer 2. Then the plate element 1 is created by means of a single process step which is used both for deformation, i.e. creation of a spatial structure for the plate element 1 and also for flat connection between the plastic membrane layer 2 on the one hand and the two nonwoven layers 3, 4 on the other hand. The same tools which are also used in the manufacture of conventional plate elements are also used for this process step.
Furthermore a maximum temperature which is 160 degrees C is not exceeded in this process step. This ensures that the plastic membrane layer 2 retains its enthalpy permeability required for its correct functioning.
For the hygroscopic adjustment of the two nonwoven layers 3, 4 these are provided with a coating of a zeolite and a binder, wherein this coating can be produced by a dipping or a spraying process.
Date Recue/Date Received 2021-12-24
Claims (6)
1. A method for producing a plate element for plate heat exchangers, which is an at least two-layered arrangement, having a layer made of plastic for transferring enthalpy between two fluid flows separated by the plate element, and at least one perforated layer, wherein the plate element is designed as a laminate arrangement, wherein the layer for transferring enthalpy is designed as a membrane layer, wherein the at least one perforated layer is designed as a support layer and made from a perforated and deformable material, and wherein the plate element has a three-dimensional, spatial structure, which is maintained by the at least one perforated support layer giving a predeterminable integrity and strength to the plate element, in which the at least two-layered laminate arrangement made of the membrane layer and the at least one support layer is produced in planar form and this planar laminate arrangement is provided with a spatial, load-bearing and maintainable structure by means of a deformation step.
2. The method according to claim 1, wherein the at least one support layer comprises a non-woven layer on both sides of the plastic membrane layer.
3. The method according to claim 1 or 2, in which an adhesive connection is also created between each support layer and the membrane layer in the deformation step.
4. The method according to any one of claims 1 to 3, the deformation step of which is carried out at a temperature < 160 degrees C.
Date Recue/Date Received 2023-02-16
Date Recue/Date Received 2023-02-16
5. The method according to any one of claims 1 to 4, in which each support layer is provided with a coating made of a zeolite and a binding agent by means of an immersion or spraying process.
6. A plate element for plate heat exchangers produced according to the method of any one of claims 1 to 5.
Date Recue/Date Received 2023-02-16
Date Recue/Date Received 2023-02-16
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014017362.3A DE102014017362A1 (en) | 2014-11-24 | 2014-11-24 | Plate element for a plate heat exchanger |
| DE102014017362.3 | 2014-11-24 | ||
| PCT/EP2015/001863 WO2016082902A1 (en) | 2014-11-24 | 2015-09-19 | Plate element for a plate heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2968596A1 CA2968596A1 (en) | 2016-06-02 |
| CA2968596C true CA2968596C (en) | 2023-10-10 |
Family
ID=54251470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2968596A Active CA2968596C (en) | 2014-11-24 | 2015-09-19 | Plate element for a plate heat exchanger |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20180347914A1 (en) |
| EP (1) | EP3224562B1 (en) |
| CA (1) | CA2968596C (en) |
| DE (1) | DE102014017362A1 (en) |
| DK (1) | DK3224562T3 (en) |
| ES (1) | ES2903236T3 (en) |
| PL (1) | PL3224562T3 (en) |
| WO (1) | WO2016082902A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220163272A1 (en) * | 2017-05-18 | 2022-05-26 | Kai Klingenburg | Heat-exchanger plate |
| CN113573555A (en) * | 2021-07-27 | 2021-10-29 | 歌尔光学科技有限公司 | Thermally conductive plastic sheet and preparation method thereof, and electronic equipment |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0056705B1 (en) * | 1981-01-15 | 1984-09-26 | Courtaulds Plc | A heat exchanger having a plastics membrane |
| CA2283089C (en) * | 1999-05-10 | 2004-05-25 | Mitsubishi Denki Kabushiki Kaisha | Heat exchanger and method for preparing it |
| US7179860B2 (en) * | 2001-03-13 | 2007-02-20 | Liwei Cao | Crosslinked polymer electrolyte membranes for heat, ion and moisture exchange devices |
| US6841601B2 (en) * | 2001-03-13 | 2005-01-11 | Dais-Analytic Corporation | Crosslinked polymer electrolyte membranes for heat and moisture exchange devices |
| US6527906B1 (en) * | 2001-08-10 | 2003-03-04 | Carrier Corporation | Elastomer adhesive for condensing furnace heat exchanger laminate material |
| JP3969064B2 (en) * | 2001-11-16 | 2007-08-29 | 三菱電機株式会社 | Heat exchanger and heat exchange ventilator |
| ES2301696T3 (en) * | 2002-12-02 | 2008-07-01 | Lg Electronics Inc. | THERMAL EXCHANGER OF A VENTILATION SYSTEM. |
| GB2417315B (en) * | 2003-10-15 | 2006-07-05 | Mitsubishi Electric Corp | Heat exchanging element |
| DE102005003543A1 (en) * | 2005-01-26 | 2006-08-03 | Klingenburg Gmbh | Humidity/heat-exchange device e.g. plate heat exchanger, useful for keeping the area at moderate temperature and for air-conditioning the area, comprises humidity/heat exchange surface |
| US7320361B2 (en) * | 2005-10-28 | 2008-01-22 | Mitsubishi Denki Kabushiki Kaisha | Heat exchanger |
| US20070151447A1 (en) * | 2005-12-30 | 2007-07-05 | Membrane Technology And Research, Inc. | Gas separation membranes and processes for controlled environmental management |
| JP2007285598A (en) * | 2006-04-17 | 2007-11-01 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| CN101657688B (en) * | 2007-05-02 | 2011-07-27 | 三菱电机株式会社 | Heat exchange element and heat exchanger |
| DE102007051699A1 (en) * | 2007-10-26 | 2009-04-30 | Klingenburg Gmbh | Plate heat exchanger for supplying a supply air flow with cooling energy |
| US9429366B2 (en) * | 2010-09-29 | 2016-08-30 | Kraton Polymers U.S. Llc | Energy recovery ventilation sulfonated block copolymer laminate membrane |
| FR2965897B1 (en) * | 2010-10-06 | 2012-12-14 | Commissariat Energie Atomique | DOUBLE AIR FLOW EXCHANGER WITH IMPROVED THERMAL TRANSFER AND HUMIDITY |
| CN103890528B (en) * | 2011-10-26 | 2017-05-24 | 三菱电机株式会社 | Total heat exchange element and method for manufacturing same |
| WO2015008868A1 (en) * | 2013-07-19 | 2015-01-22 | 旭化成せんい株式会社 | Fine cellulose fiber sheet |
-
2014
- 2014-11-24 DE DE102014017362.3A patent/DE102014017362A1/en not_active Withdrawn
-
2015
- 2015-09-19 EP EP15774855.9A patent/EP3224562B1/en active Active
- 2015-09-19 WO PCT/EP2015/001863 patent/WO2016082902A1/en not_active Ceased
- 2015-09-19 DK DK15774855.9T patent/DK3224562T3/en active
- 2015-09-19 PL PL15774855T patent/PL3224562T3/en unknown
- 2015-09-19 US US15/527,927 patent/US20180347914A1/en not_active Abandoned
- 2015-09-19 ES ES15774855T patent/ES2903236T3/en active Active
- 2015-09-19 CA CA2968596A patent/CA2968596C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DK3224562T3 (en) | 2022-01-17 |
| DE102014017362A1 (en) | 2016-05-25 |
| EP3224562A1 (en) | 2017-10-04 |
| WO2016082902A1 (en) | 2016-06-02 |
| CA2968596A1 (en) | 2016-06-02 |
| EP3224562B1 (en) | 2021-11-03 |
| PL3224562T3 (en) | 2022-03-28 |
| US20180347914A1 (en) | 2018-12-06 |
| ES2903236T3 (en) | 2022-03-31 |
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