EP3921854A2 - Nouveauté dans le procédé de revêtement et de production de conduits multi-câble - Google Patents

Nouveauté dans le procédé de revêtement et de production de conduits multi-câble

Info

Publication number
EP3921854A2
EP3921854A2 EP20752129.5A EP20752129A EP3921854A2 EP 3921854 A2 EP3921854 A2 EP 3921854A2 EP 20752129 A EP20752129 A EP 20752129A EP 3921854 A2 EP3921854 A2 EP 3921854A2
Authority
EP
European Patent Office
Prior art keywords
coating
extruder
pipes
cable
mould
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.)
Withdrawn
Application number
EP20752129.5A
Other languages
German (de)
English (en)
Other versions
EP3921854A4 (fr
Inventor
Ali Osman OZDOGAN
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3921854A2 publication Critical patent/EP3921854A2/fr
Publication of EP3921854A4 publication Critical patent/EP3921854A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0013—Apparatus or processes specially adapted for manufacturing conductors or cables for embedding wires in plastic layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0027—Cutting off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/926—Flow or feed rate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92609—Dimensions
    • B29C2948/92657—Volume or quantity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92676—Weight
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92742—Optical properties
    • B29C2948/92752—Colour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92828—Raw material handling or dosing, e.g. active hopper or feeding device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/156—Coating two or more articles simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/20—Articles comprising two or more components, e.g. co-extruded layers the components being layers one of the layers being a strip, e.g. a partially embedded strip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/28—Storing of extruded material, e.g. by winding up or stacking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/297—Feeding the extrusion material to the extruder at several locations, e.g. using several hoppers or using a separate additive feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/355—Conveyors for extruded articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/905—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using wet calibration, i.e. in a quenching tank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0075—Light guides, optical cables
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479—Manufacturing methods of optical cables
    • G02B6/4482—Code or colour marking

Definitions

  • the invention is related to a production method developed for producing one or a plurality of cable pipes with a single covering as a whole.
  • the invention is particularly related to a cable channel production system which has multi-cable pipe and a cable channel having said multi-cable pipe provided by only one extruder line.
  • Cable pipes from polymer type material are used in order to enable the preservation of the fiber optic cables which are multi-cables.
  • the cable pipes are coated after fiber optic cables are passed through thereof and are ready for use.
  • the inventive novelty in the coating and production method of the multi-cable pipes is a method which is developed for eliminating the disadvantages and difficulties known in the relevant art, is durable and has high reliability.
  • the invention is related to a cable pipe obtained by means of coating the multi cable pipe obtained from a single extruder line in contrast to the state of the art in a manner such that it would enable the usage of the fiber optic cables by means of protection.
  • the main aim of the invention is to produce simultaneously multi-pipes and pipe channel in which the multi-pipes are preserved by means of using a single extruder line.
  • Another aim of the invention is to facilitate finding the cable required by the user by means of drawing colorful lines on the cable channel in which the fiber optic cables are placed according to the colors of the cables therein.
  • Another aim of the invention is to eliminate the wastage during production. As a result of the simplicity provided in the production, saving is achieved from the energy and consumables. At the same time, since production is enabled through a single extruder line, saving is achieved from the electric energy and a reduction is made in the labor costs. Also, a production method enabling area-saving within the production area and storage area can be provided.
  • Figure - 1 is the drawing of the inventive production line
  • Figure - 2 is the view of the multi-exit part of the inventive mould
  • the invention is a production system used in obtaining a cable channel which contains multi-cable channels; mainly it comprises a single extruder (11).
  • Multi cable pipe mainly consists of a main external coating and a plurality of cable pipes therein and a wire which enables traceability of the pipes throughout the coating. Cable pipes can be produced simultaneously preferably from one to seven pieces at once by means of a main extruder (11) and 7 coax coating extruders (14).
  • a single main extruder (11) which enables dosing of the goods located on the main extruder (11), a mould (13) with one inlet and seven outlets next to said gravimetric (12), 7 coax coating extruders (14) which draw colorful lines on the pipes transmitting raw material laterally to the mould (13) or enable coloring the inner layer thereof
  • a volumetric device (15) which enables color dosing on the coax coating extruders (14).
  • plastic raw materials which are brought to proper conditions are fed to the extruder (11).
  • the pipes are produced with standard norms by means of the gravimetric (12) located on this extruder (11).
  • the plastic raw material entering into the extruder (11) is passed to the mould (13) by means of bringing thereof into melt form by means of the screw and the resistances within the liner.
  • Coax extruders (14) which are connected to the mould (13) through the side arm are fed with plastic raw material and paint.
  • Line and/or internal coating coloring is enabled by means of the volumetric devices (15) located on these coax extruders (14). Making different coloring in each cable pipe facilitates the infrastructure cable works.
  • the mould (13) has a single inlet and multi-outlets.
  • the pipes exiting out of the mould (13) enter into the vacuum boiler (16), the external diameters of the cable pipes are fixed and shaped in the vacuum calibers within the vacuum boiler (16). Shaping process of the pipes is realized by applying water cooling by means of sprays while said pipes are passing through the vacuum boiler (16).
  • the cable pipes exiting out of the vacuum boiler (16) are directed towards the first puller (17). Subsequently, in order to protect from external factors, these multi pipes enter into an external coating mould (18) and they are coated by means of the coating material being fed from the external coating extruder (19).
  • the external coating mould (18) has multi-inlet but single outlet.
  • the coated pipes are transmitted to the cutter (21) by means of the second puller (20). After they are cut in required lengths, then wrapping process by means of a wrapper (22) is realized. The production process is terminated at this phase.
  • the inventive production system makes the production of a cable channel having multi-cable pipes possible by means of a single extruder (11) line. It can realize cabling process between two to seven pieces from the main extruder (11) with different colors. Accordingly, while saving is achieved in terms of energy, field of use and labor force, saving is also achieved in terms of investment and production costs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Manufacturing Of Electric Cables (AREA)

Abstract

L'invention concerne un procédé de production mis au point pour produire un ou plusieurs conduits de câble dotés d'un unique revêtement d'ensemble. L'invention concerne en particulier un système de production de canal de câble qui comporte un conduit multi-câble et un canal de câble ayant ledit conduit multi-câble fourni par une unique ligne d'extrusion.
EP20752129.5A 2019-02-07 2020-02-03 Nouveauté dans le procédé de revêtement et de production de conduits multi-câble Withdrawn EP3921854A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2019/01843A TR201901843A2 (tr) 2019-02-07 2019-02-07 ÇOKLU KABLO BORULARININ KAPLAMA ve ÜRETİM YÖNTEMİNDE YENİLİK
PCT/TR2020/050070 WO2020162855A2 (fr) 2019-02-07 2020-02-03 Nouveauté dans le procédé de revêtement et de production de conduits multi-câble

Publications (2)

Publication Number Publication Date
EP3921854A2 true EP3921854A2 (fr) 2021-12-15
EP3921854A4 EP3921854A4 (fr) 2022-10-26

Family

ID=71947925

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20752129.5A Withdrawn EP3921854A4 (fr) 2019-02-07 2020-02-03 Nouveauté dans le procédé de revêtement et de production de conduits multi-câble

Country Status (3)

Country Link
EP (1) EP3921854A4 (fr)
TR (1) TR201901843A2 (fr)
WO (1) WO2020162855A2 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8419751D0 (en) * 1984-08-02 1984-09-05 Telephone Cables Ltd Optical cable
CN1160856A (zh) * 1996-03-06 1997-10-01 西门子公司 光缆芯线及其制作方法
US6159320A (en) * 1998-02-06 2000-12-12 Tams; F. Randy Method and apparatus for manufacturing paint rollers
US7397992B1 (en) * 2007-04-30 2008-07-08 Corning Cable Systems Llc Tubeless fiber optic cables having strength members and methods therefor
ES2640011T3 (es) * 2008-08-15 2017-10-31 Corning Optical Communications LLC Montaje de fibra óptica y métodos para su fabricación
US9819160B2 (en) * 2012-10-25 2017-11-14 Blue Diamond Industries, LLC Continuous conduit with pre-installed innerducts
JP6260362B2 (ja) * 2014-03-10 2018-01-17 住友電気工業株式会社 光モジュール製造方法

Also Published As

Publication number Publication date
WO2020162855A3 (fr) 2020-11-19
TR201901843A2 (tr) 2020-08-21
WO2020162855A2 (fr) 2020-08-13
EP3921854A4 (fr) 2022-10-26

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