WO2013129065A1 - 樹脂被覆層及び配管の延命化処理方法 - Google Patents
樹脂被覆層及び配管の延命化処理方法 Download PDFInfo
- Publication number
- WO2013129065A1 WO2013129065A1 PCT/JP2013/052882 JP2013052882W WO2013129065A1 WO 2013129065 A1 WO2013129065 A1 WO 2013129065A1 JP 2013052882 W JP2013052882 W JP 2013052882W WO 2013129065 A1 WO2013129065 A1 WO 2013129065A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pipe
- heat transfer
- transfer tube
- resin composition
- thermosetting resin
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1009—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/22—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
- B05D7/222—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes of pipes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/164—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing fluid being introduced in the pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
- F28F19/04—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of rubber; of plastics material; of varnish
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/007—Processes for applying liquids or other fluent materials using an electrostatic field
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
- B05D1/42—Distributing applied liquids or other fluent materials by members moving relatively to surface by non-rotary members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2401/00—Form of the coating product, e.g. solution, water dispersion, powders or the like
- B05D2401/30—Form of the coating product, e.g. solution, water dispersion, powders or the like the coating being applied in other forms than involving eliminable solvent, diluent or dispersant
- B05D2401/32—Form of the coating product, e.g. solution, water dispersion, powders or the like the coating being applied in other forms than involving eliminable solvent, diluent or dispersant applied as powders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- 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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
Definitions
- heat exchange tubes heat transfer tubes
- the shell (body) of the heat exchanger Operating for a long period of time causes corrosion reduction, corrosion cracking, hydrogen embrittlement cracking, etc. in the heat exchanger body and heat transfer tube. Therefore, the heat exchanger tube of the heat exchanger is inspected by periodic inspection, and the thickness of the heat exchanger tube is measured. The parts of the heat transfer tubes that have fallen due to corrosion and are likely to be damaged such as perforations before the next inspection are repaired.
- the conventional heat transfer tube repair work is performed by cutting the top and bottom of a portion where there is a risk of breakage and connecting a new heat transfer tube.
- the heat transfer tubes are densely provided, when the thickness of the heat transfer tube in the inner part is reduced, the heat transfer tube on the front side is also cut to secure a work space. Therefore, in the conventional heat transfer tube repair method, it takes time and expense to repair the heat transfer tube, and depending on the inspection frequency, there are cases where the repair work cannot be performed even though the inspection can be performed.
- the present invention has been made in view of the above problems, and a resin coating layer capable of easily repairing a pipe without cutting the pipe and repairing the life of the pipe when repairing the pipe.
- the issue is to provide.
- thermosetting resin composition for solving the subject mentioned above is formed by hardening a thermosetting resin composition in the inner wall in piping for conveying the liquid and gas in a chemical plant and a power plant. It is the resin coating layer characterized by these.
- the resin fine particles are adhered to the inner wall of the pipe by electrostatic force while supplying the resin fine particles obtained by charging the fine particles of the thermosetting resin composition into the pipe. Thereafter, the resin coating layer is formed by heating the pipe to cure the resin fine particles.
- the third invention is the resin coating layer according to the second invention, wherein the resin fine particles have an average particle size of 30 ⁇ m or more and 50 ⁇ m or less.
- thermosetting resin composition in the first invention, is supplied to the inside of the pipe, and the thermosetting resin composition is filled into the pipe, and then from the outside of the pipe It is formed by removing the uncured thermosetting resin composition inside the pipe while heating the pipe and curing the thermosetting resin composition on the inner wall side inside the pipe. It is a resin coating layer.
- the resin fine particles are supplied by electrostatic force while supplying resin fine particles obtained by charging the fine particles of the thermosetting resin composition into a pipe for conveying a liquid / gas in a chemical plant or a power plant.
- the seventh aspect of the present invention is the piping life extension processing method according to the sixth aspect, wherein the resin fine particles have an average particle diameter of 30 ⁇ m or more and 50 ⁇ m or less.
- thermosetting resin composition in the piping for conveying the liquid and gas in a chemical plant and a power plant, and thermosetting which fills the inside of the said piping with the said thermosetting resin composition And removing the uncured thermosetting resin composition inside the pipe while curing the thermosetting resin composition on the inner wall of the pipe, and heating the pipe And a resin coating layer forming step of forming a resin coating layer on the inner wall of the pipe.
- the resin coating layer is formed on the inner wall of the heat transfer tube in which a problem has occurred, when the heat transfer tube is repaired, the heat transfer tube can be easily repaired without cutting the heat transfer tube. Can do.
- FIG. 1 is a schematic view showing a resin coating layer according to Example 1 of the present invention.
- FIG. 2 is a flowchart illustrating an example of a pipe life extension processing method according to the first embodiment of the present invention.
- FIG. 3 is an explanatory view showing a step of forming a resin coating layer.
- FIG. 4 is a view showing a part of the heat exchanger.
- FIG. 5 is a flowchart illustrating an example of a pipe life extension processing method according to the second embodiment of the present invention.
- FIG. 6 is an explanatory diagram showing a process of forming a resin coating layer.
- FIG. 7 is an explanatory diagram for supplying air into the heat transfer tube.
- FIG. 8 is an explanatory view showing a state in which air is supplied into the heat transfer tube.
- FIG. 9 is a diagram illustrating an example of a method for removing an uncured thermosetting resin composition.
- FIG. 10 is a diagram illustrating an example of a method for removing an uncured
- FIG. 1 is a schematic view showing a resin coating layer according to Example 1 of the present invention.
- the resin coating layer 10 ⁇ / b> A according to the present embodiment is formed on an inner wall 11 a in a heat transfer tube (pipe) 11.
- the resin coating layer 10A according to the example is formed by curing fine particles of a thermosetting resin composition that starts a curing reaction at a low temperature.
- a thermosetting resin composition the resin composition which contains a phenol resin, a urea resin, a melamine resin, an epoxy resin, a polyurethane resin etc. as a main component is mentioned, for example.
- the heat transfer tube 11 is in contact with the heat medium inside the heat transfer tube 11, can stably withstand the temperature change of the heat transfer tube 11, is easy to use, is easy to handle, and is reduced in cost.
- the thermosetting resin composition is preferably a resin composition containing an epoxy resin as a main component.
- thermosetting resin composition preferably contains a metal powder such as an aluminum pigment.
- a metal powder such as an aluminum pigment.
- the film thickness of the resin coating layer 10 ⁇ / b> A according to the present embodiment may be 0.1 mm or more and 15 mm or less from the viewpoint of suppressing the deterioration of the inner diameter of the heat transfer tube 11 and the heat medium passing through the heat transfer tube 11. More preferably, it is 0.5 mm or more and 10 mm or less, More preferably, it is 1 mm or more and 5 mm or less.
- the heat transfer tube 11 When the resin coating layer 10A according to the embodiment is formed on the inner wall 11a in the heat transfer tube 11, when the heat transfer tube 11 is thinned due to corrosion or the like, the heat transfer tube 11 is cut when the heat transfer tube 11 is repaired.
- the heat transfer tube 11 can be repaired easily without any problems.
- FIG. 2 is a flowchart illustrating an example of a pipe life extension processing method according to the present embodiment
- FIG. 3 is an explanatory diagram illustrating a process of forming a resin coating layer.
- the pipe life extension processing method according to the present embodiment includes the following steps.
- resin fine particle supply means 24 for supplying the resin fine particles 21 into the heat transfer tube 11 is provided outside the heat exchanger 23 outside the heat exchanger 23.
- the resin fine particles 21 are supplied from the resin fine particle supply means 24 into the heat transfer tube 11 of the heat exchanger 23.
- the resin fine particle 21 supplied in the heat exchanger tube 11 adheres to the inner wall 11a of the heat exchanger tube 11 by electrostatic force (step S11).
- the resin fine particles 21 are fine particles obtained by charging the fine particles of the thermosetting resin composition as described above.
- a thermosetting resin composition in which a curing reaction starts at a low temperature is used.
- the resin composition which contains a phenol resin, a urea resin, a melamine resin, an epoxy resin, a polyurethane resin etc. as a main component is mentioned, for example.
- the heat transfer tube 11 is in contact with the heat medium inside the heat transfer tube 11, can stably withstand the temperature change of the heat transfer tube 11, is easy to use, is easy to handle, and is reduced in cost.
- thermosetting resin composition preferably contains a metal powder such as an aluminum pigment.
- a metal powder such as an aluminum pigment.
- the heat transfer tube 11 is heated by, for example, attaching a heating wire to the outer peripheral surface of the heat transfer tube 11 and heating the outer peripheral surface of the heat transfer tube 11 using the heating wire, or by using a heater.
- a heating wire to the outer peripheral surface of the heat transfer tube 11 and heating the outer peripheral surface of the heat transfer tube 11 using the heating wire, or by using a heater. Examples thereof include a method of heating the surface, a method of heating with a high-temperature gas (exhaust gas) flowing through the shell (body) of the heat exchanger 23, and the like.
- thermosetting resin composition supply means 32 for supplying a thermosetting resin composition 31 into the heat transfer tube 11 is provided outside the heat exchanger 23.
- the thermosetting resin composition 31 is supplied from the thermosetting resin composition supply means 32 into the heat transfer tube 11 of the heat exchanger 23.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
- Pipe Accessories (AREA)
Abstract
Description
(a)伝熱管(配管)11内に熱硬化性樹脂組成物の微粒子を帯電させた樹脂微粒子21を供給しつつ、樹脂微粒子21を静電気力により伝熱管11の内壁11aに付着させる樹脂微粒子付着工程(ステップS11)
(b)伝熱管11を加熱して伝熱管11の内壁11aに付着した樹脂微粒子21を硬化させて樹脂被覆層10Aを形成する樹脂被覆層形成工程(ステップS12)
(a)伝熱管11内に熱硬化性樹脂組成物31を供給し、伝熱管11の内部に熱硬化性樹脂組成物31を充填する熱硬化性樹脂組成物充填工程(ステップS21)
(b)伝熱管11を加熱し、伝熱管11の内壁11aの熱硬化性樹脂組成物31を硬化させつつ伝熱管11の内部の未硬化の熱硬化性樹脂組成物31を除去し、伝熱管11の内壁11aに樹脂被覆層10Bを形成する樹脂被覆層形成工程(ステップS22)
11 伝熱管
21 樹脂微粒子
23 熱交換器
24 樹脂微粒子供給手段
31 熱硬化性樹脂組成物
32 熱硬化性樹脂組成物供給手段
33 空気供給手段
34 空気
35 球体
36 ケーブル
37 押出し部
Claims (9)
- 化学プラント、発電プラントにおける液体・気体を搬送するための配管内の内壁に熱硬化性樹脂組成物を硬化させて形成されることを特徴とする樹脂被覆層。
- 請求項1において、
前記配管内に熱硬化性樹脂組成物の微粒子を帯電させた樹脂微粒子を供給しつつ、前記樹脂微粒子を静電気力により前記配管の内壁に付着させた後、前記配管を加熱して前記樹脂微粒子を硬化させることで形成されることを特徴とする樹脂被覆層。 - 請求項2において、
前記樹脂微粒子の平均粒子径が、30μm以上50μm以下であることを特徴とする樹脂被覆層。 - 請求項1において、
前記配管の内部に熱硬化性樹脂組成物を供給し、前記配管の内部に前記熱硬化性樹脂組成物を充填した後、前記配管の外部から前記配管を加熱し、前記配管の内部の内壁側の熱硬化性樹脂組成物を硬化させつつ、前記配管の内部の未硬化の前記熱硬化性樹脂組成物を除去して形成されることを特徴とする樹脂被覆層。 - 請求項4において、
前記配管を加熱する際、前記配管の内部にガス又は空気を供給し、前記配管の内部の未硬化の前記熱硬化性樹脂組成物が抜き出されることを特徴とする樹脂被覆層。 - 化学プラント、発電プラントにおける液体・気体を搬送するための配管内に熱硬化性樹脂組成物の微粒子を帯電させた樹脂微粒子を供給しつつ、前記樹脂微粒子を静電気力により前記配管の内壁に付着させる樹脂微粒子付着工程と、
前記配管を加熱して前記配管の内壁に付着した前記樹脂微粒子を硬化させて樹脂被覆層を形成する樹脂被覆層形成工程と、
を有することを特徴とする配管の延命化処理方法。 - 請求項6において、
前記樹脂微粒子の平均粒子径を、30μm以上50μm以下とすることを特徴とする配管の延命化処理方法。 - 化学プラント、発電プラントにおける液体・気体を搬送するための配管内に熱硬化性樹脂組成物を供給し、前記配管の内部に前記熱硬化性樹脂組成物を充填する熱硬化性樹脂組成物充填工程と、
前記配管を加熱し、前記配管の内壁の前記熱硬化性樹脂組成物を硬化させつつ前記配管の内部の未硬化の前記熱硬化性樹脂組成物を除去し、前記配管の内壁に樹脂被覆層を形成する樹脂被覆層形成工程と、
を有することを特徴とする配管の延命化処理方法。 - 請求項8において、
前記配管を加熱している際に、前記配管の内部にガス又は空気を供給し、前記配管の内部の未硬化の前記熱硬化性樹脂組成物を抜き出すことを特徴とする配管の延命化処理方法。
Priority Applications (5)
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US14/381,094 US10139033B2 (en) | 2012-02-29 | 2013-02-07 | Resin coating layer and life-extension method for piping |
EP13755412.7A EP2821686A4 (en) | 2012-02-29 | 2013-02-07 | RESIN COATING LAYER AND PROCESSING METHOD EXTENDING THE LIFE OF PIPES |
IN7204DEN2014 IN2014DN07204A (ja) | 2012-02-29 | 2013-02-07 | |
CA2865532A CA2865532C (en) | 2012-02-29 | 2013-02-07 | Resin coating layer and life-extension method for piping |
CN201380010878.7A CN104126093B (zh) | 2012-02-29 | 2013-02-07 | 树脂被覆层及管道的延长寿命处理方法 |
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JP2012044639A JP5893961B2 (ja) | 2012-02-29 | 2012-02-29 | 樹脂被覆層の製造方法及び配管の延命化処理方法 |
JP2012-044639 | 2012-02-29 |
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CA (1) | CA2865532C (ja) |
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JP6372439B2 (ja) * | 2015-07-31 | 2018-08-15 | 三菱電機株式会社 | 熱交換システム |
GB2550428A (en) * | 2016-05-20 | 2017-11-22 | Oranmore Env Services Ltd | Pipe repair composition and method |
FR3057785A1 (fr) * | 2016-10-25 | 2018-04-27 | Saint-Gobain Performance Plastics France | Procede de revetement de la paroi interieure d'un tube |
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Also Published As
Publication number | Publication date |
---|---|
IN2014DN07204A (ja) | 2015-04-24 |
EP2821686A4 (en) | 2015-11-18 |
TW201335564A (zh) | 2013-09-01 |
CA2865532C (en) | 2017-01-17 |
EP2821686A1 (en) | 2015-01-07 |
US10139033B2 (en) | 2018-11-27 |
US20150024140A1 (en) | 2015-01-22 |
TWI532968B (zh) | 2016-05-11 |
JP2013181578A (ja) | 2013-09-12 |
CN104126093A (zh) | 2014-10-29 |
CA2865532A1 (en) | 2013-09-06 |
JP5893961B2 (ja) | 2016-03-23 |
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