EP3341951A1 - Utilisation d'hexafluorobutenes pour l'isolation ou l'extinction d'arcs electriques - Google Patents
Utilisation d'hexafluorobutenes pour l'isolation ou l'extinction d'arcs electriquesInfo
- Publication number
- EP3341951A1 EP3341951A1 EP16763913.7A EP16763913A EP3341951A1 EP 3341951 A1 EP3341951 A1 EP 3341951A1 EP 16763913 A EP16763913 A EP 16763913A EP 3341951 A1 EP3341951 A1 EP 3341951A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- mol
- electrical
- hexafluorobut
- hexafluorobutene
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/22—Selection of fluids for arc-extinguishing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/56—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances gases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
- H01H33/56—Gas reservoirs
- H01H2033/566—Avoiding the use of SF6
Definitions
- the present invention relates to a gas used for the electrical insulation or extinguishing of electric arcs, as well as electrical appliances provided with an enclosure containing this gas.
- SFe has the major disadvantage of having a global warming potential (GWP) of 22,800 (relative to CO2 over 100 years) and a residence time in the atmosphere of 3,200 years, which places it among the gases with strong greenhouse effect.
- GWP global warming potential
- Hybrid systems have been proposed which combine gas insulation with solid insulation (EP 1724802). This, however, increases the volume of electrical appliances compared to that allowed by SFe insulation; and the cut in the oil or vacuum requires a redesign of the equipment.
- Perfluorocarbons generally have interesting dielectric strength properties, but their GWP is typically in a range of 5,000 to 10,000.
- SFe and other gases such as nitrogen or nitrogen dioxide are used to limit the impact of SF6 on the environment: see, for example, WO 2009/049144. Nevertheless, because of the strong SF6 GWP, the GWP of these mixtures remains very high.
- a mixture of SFe and nitrogen in a volume ratio of 10/90 has a dielectric strength in alternating voltage (50 Hz) equal to 59% of that of SFe but its GWP is of the order of 8 000 to 8 650.
- Such mixtures can not therefore be used as a low environmental impact gas.
- the document FR 2955970 proposes the use of fluoroketones in the gaseous state for electrical insulation.
- the fluoroketones can be combined with a carrier gas or dilution gas (for example nitrogen, air, nitrous oxide, carbon dioxide, oxygen, helium, etc.).
- Document FR 2975818 proposes a mixture of octofluorobutan-2-one and carrier gas as isolation medium.
- the document FR 2983341 proposes the use of polyfluorinated oxiranes as electric insulation gas and / or electric arc extinguishing.
- Document FR 2986192 proposes the use of a combination of polyfluorinated oxirane and hydrofluoroolefin as an electrical insulating gas.
- the hydrofluoroolefins mentioned are 1,3,3,3-tetrafluoropropene (HFO-1234ze), 2,3,3,3-tetrafluoropropene (HFO-1234yf) and 1,2,3,3,3-pentafluoropropene (HFO -1225ye).
- WO 2012/160158 proposes the use of a mixture of decafluoro-2-methylbutan-3-one and a carrier gas as an electrical insulating gas.
- the document WO 2013/004796 proposes the use of a gas based on hydrofluoroolefin as an electrical insulation gas.
- the hydrofluoroolefins more particularly proposed are 1, 3,3,3-tetrafluoropropene (HFO-1234ze) and 2,3,3,3-tetrafluoropropene (HFO-1234yf).
- the document WO 2013/041695 proposes the use of a mixture of hydrofluoroolefin and of fluoroketone as electrical insulation gas.
- the hydrofluoroolefins more particularly proposed are 1, 3,3,3-tetrafluoropropene (HFO-1234ze), 2,3,3,3-tetrafluoropropene (HFO-1234yf) and 1,2,3,3,3-pentafluoropropene (HFO-1225ye).
- the document WO 2013/136015 proposes the use of a mixture of hydrofluoroolefin and hydrofluorocarbon as electrical insulation gas.
- the hydrofluoroolefins more particularly proposed are 1, 3,3,3-tetrafluoropropene (HFO-1234ze), 2,3,3,3-tetrafluoropropene (HFO-1234yf) and 1,2,3,3,3-pentafluoropropene (HFO-1225ye).
- Hydrofluorocarbons more particularly proposed are 1, 1, 1, 1, 2,3,3,3-heptafluoropropane (HFC-227ea), pentafluoroethane (HFC-125) and 1, 1, 1, 2-tetrafluoroethane (HFC-134a).
- the invention firstly relates to the use of a gas as an electrical isolation medium and / or electric arc extinguishing, wherein the gas comprises a hexafluorobutene.
- hexafluorobutene is 1, 1, 1, 4,4,4-hexafluorobut-2-ene, preferably in trans form, or 2,3,3,4,4,4-hexafluorobut -1 -ene.
- the use is a use as an electrical isolation medium and / or electric arc extinguishing in a medium voltage substation electrical apparatus.
- the gas contains:
- the gas also comprises a diluent, preferably chosen from air, nitrogen, methane, oxygen, carbon dioxide or a mixture of these; and preferably the gas is a binary mixture of a hexafluorobutene and a diluent.
- the use is carried out in a temperature range whose lower limit is from -30 to 20 ° C, preferably from -20 to 10 ° C, more preferably from -15 to 0 ° vs.
- the gas consists essentially and preferably consists of hexafluorobutene or a mixture of hexafluorobutenes.
- the use is carried out in a temperature range whose lower limit is greater than or equal to 0 ° C, or 2 ° C, or 5 ° C, or 10 ° vs.
- the invention also relates to an electrical apparatus comprising a sealed enclosure in which there are electrical components and an electrical insulating gas and / or electric arc extinguishing, wherein the gas comprises a hexafluorobutene.
- hexafluorobutene is 1, 1, 1, 4,4,4-hexafluorobut-2-ene, preferably in trans form, or 2,3,3,4,4,4-hexafluorobut -1 -ene.
- the gas contains:
- the gas also comprises a diluent, preferably chosen from air, nitrogen, methane, oxygen, carbon dioxide or a mixture of these; and preferably the gas is a binary mixture of a hexafluorobutene and a diluent.
- a diluent preferably chosen from air, nitrogen, methane, oxygen, carbon dioxide or a mixture of these; and preferably the gas is a binary mixture of a hexafluorobutene and a diluent.
- the gas consists essentially and preferably consists of hexafluorobutene or a mixture of hexafluorobutenes.
- the electrical apparatus is a medium voltage electrical appliance.
- the gas is at a pressure at 20 ° C. of 0.1 to 1 MPa, preferably of 0.1 to 0.5 MPa, and more particularly of 0.12 to 0.15 MPa.
- the electrical apparatus is selected from a gas-insulated electrical transformer, a gas-insulated line for the transmission or distribution of electricity, and an electrical connection / disconnection apparatus.
- the present invention overcomes the disadvantages of the state of the art. More particularly, it provides electrical insulation and / or arc-extinguishing media having both low GWP and high dielectric strength.
- the invention relates to a gas used as an electrical isolation medium and / or electric arc extinguishing.
- the gas according to the invention comprises at least one hexafluorobutene or HFO-1336.
- it is 1, 1, 1, 4,4,4-hexafluorobut-2-ene (or HFO-1336mzz), or 2,3,3,4,4,4-hexafluorobut-1 -ene (or HFO-1336yf).
- HFO-1336mzz may be in cis or trans form or may be a mixture of both forms. Preferably it is in trans form (HFO-E-1336mzz). It is also possible to use a mixture of several hexafluorobutenes, for example a mixture of HFO-1336mzz and HFO-1336yf.
- the gas may also comprise additional compounds, in particular a diluent (or dilution gas, or buffer gas) and optionally one or more other halogenated compounds (especially fluorinated compounds).
- a diluent or dilution gas, or buffer gas
- other halogenated compounds especially fluorinated compounds
- the gas according to the invention comprises (or possibly essentially consists of, or possibly consists of) a mixture of one or more HFO-1336 and a diluent.
- a mixture of one or more HFO-1336 and a diluent Preferably it is a binary mixture consisting of HFO-1336mzz and a diluent, or consisting of HFO-1336yf and a diluent.
- the diluent is an inert compound, which may be for example selected from air, nitrogen, methane, oxygen, nitrous oxide, helium and carbon dioxide. Mixtures of these are also possible.
- the gas according to the invention comprises (or possibly consists essentially of, or possibly consists of) a mixture of one or more compounds HFO-1336 and one or more other halogenated compounds, or of one or more compounds HFO-1336, at least one diluent, especially as mentioned above and one or more other halogenated compounds.
- the halogenated compound is a hydrochlorofluoroolefin, a hydrofluoroolefin or a fluoroketone.
- the halogenated compound is a fluorinated compound, which is preferably chosen from fluoroketones, fluoethers, fluonitriles, fluorinated peroxides, fluoroamides and fluoro ether oxides.
- Decafluoro-2-methylbutan-3-one is a preferred halogenated compound. It is preferably desired that the gas according to the invention does not undergo condensation for the entire range of projected use temperature. It is also desired to use this gas at a sufficiently high pressure, in principle greater than 10 5 Pa. Under these conditions, the use of a diluent makes it possible to avoid reaching the saturation vapor pressure of HFO-1336 or other halogenated compounds that may be present throughout the range of the intended use temperature.
- a diluent is generally a compound having a boiling point lower than that of HFO-1336 and also having a lower electrical rigidity (at a reference temperature of, for example, 20 ° C).
- the absolute operating pressure of the gas according to the invention is preferably from 1 to 1.5 bar in medium voltage devices and from 4 to 7 bar in high voltage devices.
- medium voltage and high voltage are used herein in their usual acceptance that the term “medium voltage” refers to a voltage that is greater than 1000 volts AC and 1500 volts DC but that does not does not exceed 52000 volts AC and 75000 volts DC, while the term “high voltage” means a voltage that is strictly greater than 52000 volts AC and 75000 volts DC.
- Ptot represents the operating pressure of the gas according to the invention
- P represents the partial pressure of HFO-1336 and other halogenated compounds
- PVS represents the saturated vapor pressure of HFO-1336 and other compounds halogenated.
- the pressures are given at the filling temperature, in general about 20 ° C.
- the gas according to the invention can be used in a temperature range whose lower limit is: -30 to -25 ° C; or from -25 to -20 ° C; or from -20 to -15 ° C; or from -15 to -10 ° C; or from -10 to -5 ° C; or from -5 to 0 ° C; or from 0 to 5 ° C; or from 5 to 10 ° C; or 10 to 15 ° C; or 15 to 20 ° C.
- Embodiments in which a diluent gas is present generally permit work in a temperature range whose lower limit is lower than in embodiments in which no diluent gas is present.
- the lower limit of the temperature range is preferably greater than or equal to 0 ° C, or 1 ° C, or at 3 ° C, or at 4 ° C, or at 5 ° C, or at 6 ° C, or at 7 ° C, or at 8 ° C, or at 9 ° C, or at 10 ° C, or at 11 ° C, or at 12 ° C.
- the lower limit of the temperature range is preferably greater than or equal to 0 ° C, or 1 ° C, or 2 ° C, or 3 ° C. ° C, or at 4 ° C, or at 5 ° C.
- the lower limit of the temperature range is preferably greater than or equal to 7 ° C, or 8 ° C, or 9 ° C, or 10 ° C, or 1 1 ° C, or at 12 ° C.
- the gas according to the invention has a GWP of less than or equal to 20, more particularly less than or equal to 15 or to 10, or to 7, or to 5, or to 4, or to 3.
- the GWP is defined relative to carbon dioxide and compared to a duration of 100 years, according to the method indicated in "The scientific assessment of ozone depletion, 2002, report of the World Meteorological Association's Global Ozone Research and Monitoring Project".
- the (molar) proportion of HFO-1336 in the gas may be, in certain embodiments, from 1 to 2%; or 2 to 3%; or 3-4%, or 4-5%; or from 5 to 6%; or 6-7%; or 7 to 8%; or from 8 to 9%; or from 9 to 10%; or from 10 to 12%; or from 12 to 14%; or from 14 to 16%; or from 16 to 18%; or 18 to 20%; or 20 to 22%; or 22 to 24%; or 24 to 26%; or from 26 to 28%; or from 28 to 30%; or from 30 to 35%; or 35 to 40%; or 40 to 45%; or 45 to 50%; or 50 to 55%; or 55 to 60%; or 60 to 70%; or 70 to 80%; or 80 to 90%; or 90 to 100%.
- the partial pressure of HFO-1336 in the gas at 20 ° C may in some embodiments be 0.002 to 0.004 MPa; or from 0.004 to 0.006 MPa; or from 0.006 to 0.008 MPa; or from 0.008 to 0.01 MPa; or from 0.01 to 0.012 MPa; or from 0.012 to 0.014 MPa; or from 0.014 to 0.016 MPa; or from 0.016 to 0.018 MPa; or from 0.018 to 0.02 MPa; or from 0.02 to 0.022 MPa; or from 0.022 to 0.024 MPa; or from 0.024 to 0.026 MPa; or from 0.026 to 0.028 MPa; or from 0.028 to 0.03 MPa; or from 0.03 to 0.032 MPa; or from 0.032 to 0.034 MPa; or from 0.034 to 0.036 MPa; or from 0.036 to 0.038 MPa; or from 0.04 to 0.045 MPa; or from
- electrical appliances contain a relatively high amount of HFO-1336 (and possibly other halogenated gases and especially fluorinated), so that the dielectric, thermal and gas-off characteristics are sufficient over the normative or desired temperature range.
- a heating device in combination with an electrical appliance, said heating device being triggered according to the temperature of the gas mixture, its pressure or its density.
- a heating resistor ideally placed at the lowest point of the apparatus (point of convergence of the condensed liquids on the various parts inside the apparatus, by gravitation) can be used.
- Dielectric strength measurements are made at 20 ° C. and at 1.3 bar in a homogeneous field, with a distance between electrodes of 12 mm.
- EXAMPLE 2 Mixtures with an Inert Compound Using the ideal gas model, 1 m 3 of gas at 1, 3 bar and at 20 ° C contains 53.33 moles, regardless of the gas used. This same amount of gas, in the same volume, gives a pressure of 1, 14478 bar at -15 ° C.
- each gas is considered independent of other gases in the same volume.
- the saturation pressure of HFO-E-1336mzz at -15 ° C is 0.39 bar
- the maximum number of moles in 1 m 3 of gas is 16.35 moles, if it is desired to avoid any condensation at this temperature.
- the mixture HFO-E-1336mzz / inert comprises then a molar composition of 30.6% HFO-E-1336mzz and 69.4% of inert compound.
- the saturation partial pressure of HFO-1336yf at -15 ° C is 0.5151 bar.
- a calculation similar to the previous one shows that the maximum molar proportion of HFO-1336yf in an HFO-1336yf / inert mixture making it possible to avoid any condensation is about 45%.
- the dielectric strength of the air is 54% of that of SF6 at -15 ° C. and at 1.14 bar, the dielectric strength of the above binary mixtures can be calculated under the same conditions:
- the maximum content of HFO-1336 at vapor saturation at -15 ° C and at 1.14 bar is higher than that predicted by ideal gas theory.
- the binary HFO-1336 / inert compositions of interest may have an HFO-1336 content higher than the values indicated above.
- the dielectric strength obtained may be greater than that calculated above.
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Organic Insulating Materials (AREA)
- Gas-Insulated Switchgears (AREA)
- Circuit Breakers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1557996A FR3040525B1 (fr) | 2015-08-28 | 2015-08-28 | Utilisation d'hexafluorobutenes pour l'isolation ou l'extinction d'arcs electriques |
| PCT/FR2016/052081 WO2017037360A1 (fr) | 2015-08-28 | 2016-08-16 | Utilisation d'hexafluorobutenes pour l'isolation ou l'extinction d'arcs electriques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3341951A1 true EP3341951A1 (fr) | 2018-07-04 |
Family
ID=54783765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16763913.7A Pending EP3341951A1 (fr) | 2015-08-28 | 2016-08-16 | Utilisation d'hexafluorobutenes pour l'isolation ou l'extinction d'arcs electriques |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10490372B2 (fr) |
| EP (1) | EP3341951A1 (fr) |
| JP (1) | JP6751757B2 (fr) |
| CN (1) | CN107924780B (fr) |
| FR (1) | FR3040525B1 (fr) |
| WO (1) | WO2017037360A1 (fr) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3079359B1 (fr) | 2018-03-22 | 2020-10-09 | Arkema France | Utilisation du 1-chloro-2,3,3,3-tetrafluoropropene pour l'isolation ou l'extinction d'arcs electriques |
| FR3082993B1 (fr) | 2018-06-25 | 2020-05-29 | Arkema France | Utilisation du trifluoroethylene pour l'isolation ou l'extinction d'arcs electriques |
| ES2767732A1 (es) * | 2018-12-18 | 2020-06-18 | Ormazabal Corporate Tech A I E | Sistema de aislamiento eléctrico de bajo impacto ambiental para aparamenta eléctrica de media y alta tensión |
| ES2781127A1 (es) * | 2019-02-27 | 2020-08-28 | Ormazabal Corporate Tech A I E | Sistema de aislamiento eléctrico de bajo impacto ambiental para aparamenta eléctrica de media y alta tensión |
| US11978600B2 (en) | 2019-06-21 | 2024-05-07 | Hitachi Energy Ltd | Dielectric-insulation or arc-extinction fluid |
| CN111211515B (zh) * | 2020-01-10 | 2023-07-18 | 广东电网有限责任公司电力科学研究院 | 一种灭弧和/或绝缘电气设备 |
| ES3042519T3 (en) * | 2020-04-10 | 2025-11-21 | Agc Inc | Dielectric, dielectric composition and use therefor, electronic device, and supply method |
| CN116635970A (zh) * | 2020-12-16 | 2023-08-22 | Agc株式会社 | 电气设备、填充设备和储存设备 |
| CN112760081B (zh) * | 2021-02-09 | 2022-01-14 | 浙江大学 | 一种混合工质及其应用 |
| CN115101369A (zh) * | 2022-07-28 | 2022-09-23 | 广东电网有限责任公司 | 一种应用于负荷开关灭弧介质的环保气体配比方法 |
| CN116092724B (zh) * | 2022-12-09 | 2024-11-08 | 西安近代化学研究所 | 一种用于替代六氟化硫的低gwp绝缘混合气体及其应用 |
| CN116741432B (zh) * | 2022-12-09 | 2024-11-08 | 西安近代化学研究所 | 一种绝缘混合气体及其应用 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002171624A (ja) * | 2000-11-30 | 2002-06-14 | Mitsubishi Electric Corp | ガス封入形開閉装置 |
| US7250583B2 (en) * | 2004-04-19 | 2007-07-31 | Abb Technology Ag | Gas-insulated switchgear device |
| US8287752B2 (en) * | 2005-11-01 | 2012-10-16 | E I Du Pont De Nemours And Company | Fire extinguishing and fire suppression compositions comprising unsaturated fluorocarbons |
| CA2684290C (fr) * | 2007-06-12 | 2016-09-06 | E. I. Du Pont De Nemours And Company | Compositions azeotropiques et ressemblant a des azeotropes de e-1,1,1,4,4,4-hexafluoro-2-butene |
| CA2764874C (fr) | 2009-06-12 | 2018-12-18 | Abb Technology Ag | Milieu d'isolation dielectrique |
| US20110144216A1 (en) * | 2009-12-16 | 2011-06-16 | Honeywell International Inc. | Compositions and uses of cis-1,1,1,4,4,4-hexafluoro-2-butene |
| TW201139339A (en) * | 2010-01-11 | 2011-11-16 | Du Pont | Azeotropic and azeotrope-like compositions of Z-1,1,1,4,4,4-hexafluoro-2-butene, trans-1,2-dichloroethylene, and 1,1,1,3,3-pentafluorobutane |
| US8524955B2 (en) * | 2010-05-21 | 2013-09-03 | Honeywell International Inc. | Process for the preparation of hexafluoro-2-butyne |
| US9145480B2 (en) * | 2010-10-28 | 2015-09-29 | Honeywell International Inc. | Mixtures containing 1,1,1,3,3,3-hexafluorobutene and 1-chloro-3,3,3-trifluoropropene |
| FR2968009B1 (fr) * | 2010-11-25 | 2012-11-16 | Arkema France | Fluides frigorigenes contenant du (e)-1,1,1,4,4,4-hexafluorobut-2-ene |
| FR2989084B1 (fr) * | 2012-04-04 | 2015-04-10 | Arkema France | Compositions a base de 2,3,3,4,4,4-hexafluorobut-1-ene |
| US20150191576A1 (en) * | 2012-08-01 | 2015-07-09 | E I Du Pont De Nemours And Company | Azeotropic and azeotrope-like compositions of e-1,3,4,4,4-pentafluoro-3-trifluoromethyl-1-butene and z-1,1,1,4,4,4-hexafluoro-2-butene and uses thereof |
| TW201414823A (zh) * | 2012-09-19 | 2014-04-16 | Du Pont | 包含z-1,1,1,4,4,4-六氟-2-丁烯及2,2-二氯-1,1,1-三氟乙烷之組合物及其使用方法 |
| US9234123B2 (en) * | 2013-03-21 | 2016-01-12 | Hsi Fire & Safety Group, Llc | Compositions for totally non-flammable aerosol dusters |
| DE102014220985A1 (de) * | 2014-07-03 | 2016-01-07 | Siemens Aktiengesellschaft | Vorrichtung und Verfahren zur Verwendung von 1,1,1,4,4,4-Hexafluor-2-Buten als gasförmiges, elektrisch isolierendes und/oder Lichtbogen-löschendes Medium |
-
2015
- 2015-08-28 FR FR1557996A patent/FR3040525B1/fr active Active
-
2016
- 2016-08-16 US US15/755,635 patent/US10490372B2/en active Active
- 2016-08-16 WO PCT/FR2016/052081 patent/WO2017037360A1/fr not_active Ceased
- 2016-08-16 CN CN201680050434.XA patent/CN107924780B/zh active Active
- 2016-08-16 JP JP2018511072A patent/JP6751757B2/ja active Active
- 2016-08-16 EP EP16763913.7A patent/EP3341951A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3040525B1 (fr) | 2017-08-11 |
| US10490372B2 (en) | 2019-11-26 |
| FR3040525A1 (fr) | 2017-03-03 |
| JP6751757B2 (ja) | 2020-09-09 |
| JP2018534718A (ja) | 2018-11-22 |
| CN107924780B (zh) | 2020-07-07 |
| US20180247779A1 (en) | 2018-08-30 |
| CN107924780A (zh) | 2018-04-17 |
| WO2017037360A1 (fr) | 2017-03-09 |
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