WO2011102679A2 - 고주파 유도가열 더블스틸벨트 프레스 장치 - Google Patents
고주파 유도가열 더블스틸벨트 프레스 장치 Download PDFInfo
- Publication number
- WO2011102679A2 WO2011102679A2 PCT/KR2011/001101 KR2011001101W WO2011102679A2 WO 2011102679 A2 WO2011102679 A2 WO 2011102679A2 KR 2011001101 W KR2011001101 W KR 2011001101W WO 2011102679 A2 WO2011102679 A2 WO 2011102679A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steel belt
- high frequency
- induction heating
- frequency induction
- belt press
- Prior art date
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
- H05B6/107—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for continuous movement of material
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- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
- B29C70/506—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands and impregnating by melting a solid material, e.g. sheet, powder, fibres
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- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/44—Compression means for making articles of indefinite length
- B29C43/48—Endless belts
- B29C2043/483—Endless belts cooperating with a second endless belt, i.e. double band presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/12—Thermoplastic materials
Definitions
- the present invention relates to an apparatus for producing a thermoplastic-continuous fiber hybrid composite, and more particularly, to induction heating using high-speed induction using a double steel belt and enabling rapid heating and precise and uniform temperature control.
- a heating double steel belt press apparatus is provided.
- Continuous fiber-reinforced plastics contain a continuous phase of reinforcing fibers such as glass fiber or carbon fiber in plastics, which are relatively weak in mechanical strength. These continuous fiber-reinforced plastics are short fiber-reinforced plastics shorter than 1 mm in length. The mechanical strength, stiffness and impact performance are very good when compared to long-fiber reinforced plastics of 5 to 50 mm length, such as reinforced thermoplastics (LFT) or long fiber-reinforced thermoplastics (LFT) or glass mat-reinforced thermoplastics (GMT).
- LFT reinforced thermoplastics
- LFT long fiber-reinforced thermoplastics
- GTT glass mat-reinforced thermoplastics
- the continuous fiber-reinforced plastic should be excellent in flexibility and can be woven in one-way or two-way, through which the continuous fiber-reinforced plastic structure can be applied to products requiring a variety of mechanical performance.
- the continuous fiber-reinforced plastic is typically manufactured by a pultrusion method or a mixed pressing followed by a hot pressing method.
- the pultrusion method is to impregnate the plastic resin in the bundle of continuous fibers by passing a bundle of widely spread continuous fibers through a resin tank or a die in a liquid (or molten) state.
- Optimizing the process conditions may increase the degree of impregnation.
- the hot pressing method following the commingle is a method of mixing and spinning a continuous fiber and a plastic resin in a fiber form, and then hot pressing the heated and pressed mixed spinning fiber into a continuous fiber. It is easy to weave because the flexibility of the fiber is not largely lost due to the physical combination of the plastic resin and the plastic resin, and when hot pressing after weaving, the formability and impregnation are excellent, and the content control of the reinforcing fiber and the plastic resin of the continuous fiber reinforced plastic is free. It is.
- thermoplastic-continuous fiber hybrid composite manufacturing apparatus that is easy to be woven and has excellent uniformity and impregnation during hot melt impregnation after weaving, and to which various kinds of thermoplastics can be applied.
- An object of the present invention is to reduce the energy consumption of heating in the process of making a thermoplastic composite composite tape of the impregnated state by a high frequency induction heating method in the manufacturing apparatus for producing a composite material by impregnating glass fiber and thermoplastic resin. It is to provide a high frequency induction heating double steel belt press device that can be made.
- the present invention is a device for producing a thermoplastic plastic continuous fiber hybrid composite by supplying a thermoplastic tape on both sides of a wide glass fiber bundle, heating, pressing, and cooling the glass fiber and the thermoplastic tape
- a pair of ceramic steel belts disposed above and below to rotate in opposite directions to compress and transport the glass fibers and the thermoplastic tape
- An entrance sprocket and an exit sprocket which are respectively provided at the entrance and exit sides of the pair of magnetic steel belts to transfer the magnetic steel belts
- An induction coil part formed to be divided into an upper plate and a lower plate to surround the magnetic steel belt;
- a cooling unit formed at a downstream side of the induction coil part to pressurize and simultaneously cool both sides of the thermoplastic continuous fiber hybrid composite impregnated with hot melt in the induction coil part.
- a high frequency induction heating double steel belt press device is formed to be possible.
- the magnetic steel belt may be made of any one material of aluminum, copper, stainless steel, and carbon steel.
- the induction coil portion is provided with contact points on both sides of the upper plate and the lower plate, respectively, it is preferable that the contact is formed to be intermittent as the lifting and lowering of the magnetic steel belt.
- the entry sprocket or the exit sprocket is preferably formed to be movable in the horizontal direction, it is possible to adjust the tension of the magnetic steel belt.
- the conveying speed of the glass fiber is in the range of 2 ⁇ 40m per minute
- high frequency current applied to the induction coil portion is preferably 20 ⁇ 40Khz
- the cooling unit is composed of a pressure roller or a fan flowing in the cooling water, the pressure roller is preferably formed to be movable in the vertical direction.
- the manufacturing apparatus according to the present invention is capable of rapid heating, precise and uniform temperature control by using a high frequency induction heating method as a heating means of the impregnated thermoplastic tape and glass fiber, impregnated thermoplastic tape and glass fiber.
- a high frequency induction heating method as a heating means of the impregnated thermoplastic tape and glass fiber, impregnated thermoplastic tape and glass fiber.
- the present invention applies the concept of a high frequency induction heating coil that can be opened and closed, so that the belt can be easily replaced as needed, resulting in an excellent workability when loading an initial sample onto the belt press.
- FIG. 2 and 3 is a block diagram showing the structure of a high frequency induction heating double steel belt press apparatus according to the present invention.
- FIG. 1 is a conceptual diagram illustrating the basic structure of high frequency induction heating.
- the high frequency induction heating spirally winds the heating coil 10 formed by using a tube made of copper, in which cooling water can flow, around the heated object 20 as a conductor.
- a high frequency current flows through the heating coil 10 formed of a copper tube, heat is generated by a current induced in the heated object 20 as a conductor.
- the conductor to be heated 20 may be aluminum, copper, stainless steel, carbon steel, or the like, and more preferably, a material having magnetic properties for magnetism is advantageous.
- High frequency induction heating is based on the principle of energy loss due to Joule heating and magnetic hysteresis. The higher the frequency, the shallower the depth of penetration, so the appropriate frequency needs to be selected according to the application.
- FIG. 2 and 3 is a configuration diagram showing the structure of the high frequency induction heating double steel belt press apparatus according to the present invention, Figure 2 shows a state in which the induction coil portion closed, Figure 3 shows the state induction coil portion open.
- the high frequency induction heating double steel belt press apparatus 100 is a pair of magnetic steel belts (110a, 110b), the magnetic steel belts (110a, 110b) that rotate in opposite directions to each other ) Are provided on both sides of the side sprockets 112a and 112b for rotating the ceramic steel belts 110a and 110b, the exit sprockets 114a and 114b, and a pair of magnetic steel belts 110a and 110b overlap.
- Induction coil parts (120a, 120b) formed in a shape that surrounds the entirety of the magnetic steel belt (110a, 110b) in the section is formed in the downstream of the induction coil parts (120a, 120b) induction coil parts (120a, 120b) Cooling unit (130a, 130b) for pressing and simultaneously cooling both sides of the material heated in the).
- the present invention is an apparatus for impregnating a thermoplastic tape on both sides of a glass fiber in the form of a band. Impregnation of glass fiber and thermoplastic tape requires heating, pressing and cooling processes.
- the present invention is characterized in that the heating process, which consumes the most energy during this process, can be made in a high frequency induction heating method.
- the magnetic steel belts 110a and 110b are provided with a pair.
- the magnetic steel belts 110a and 110b are formed in a caterpillar shape.
- the upper magnetic steel belt 110a Consisting of the upper magnetic steel belt (110a) and the lower magnetic steel belt (110b) of the lower, and rotates in the opposite direction.
- the upper magnetic steel belt 110a rotates in a counterclockwise direction
- the lower magnetic steel belt 110b rotates in a clockwise direction.
- the glass fiber and the thermoplastic plastic tape are supplied from the left side of the drawing to pass between the upper and lower conductive steel belts 110a and 110b, and are impregnated by heating, pressing, and cooling to produce a hybrid composite.
- the magnetic steel belts 110a and 110b should be made of a material having magnetic properties for magnetic, and materials such as aluminum (Al), copper (Cu), stainless steel, and carbon steel may be used, but are limited to these materials. Other materials may be used as long as they have magnetic properties for magnetism.
- Rollers are provided at both sides of the magnetic steel belts 110a and 110b, and the upper magnetic steel belt 110a is installed to be able to move up and down. This is for the convenience and maintenance of the initial loading of glass fiber and thermoplastic tape.
- Height adjustment of the upper magnetic steel belt (110a) is made by adjusting the distance between the entry sprocket 112a and the exit sprocket 114a which are installed on both sides.
- the gap between the entry sprocket 112a and the exit sprocket 114a becomes wider, the upper magnetic steel belt 110a is raised as shown in FIG. 3.
- the gap adjustment between the entry sprockets 112a and 112b and the exit sprockets 114a and 114b also serves to correct the tension of the belt.
- the magnetic steel belts 110a and 110b may vary in length due to thermal expansion, and may vary in length or tension due to various other reasons. In order to compensate for this, the sprockets 112a and 112b may be used. The gap between the exit sprockets 114a and 114b can be corrected.
- Outward sprockets 114a and 114b are the driving sprockets, and the entry sprockets 112a and 112b are driven sprockets among the entry sprockets 112a and 112b and the exit sprockets 114a and 114b. Therefore, the exit sprockets 114a and 114b operate in a manner of attracting the magnetic steel belts 110a and 110b.
- the induction coil parts 120a and 120b are provided to surround the circumferences of the magnetic steel belts 110a and 110b, and serve to heat the magnetic steel belts 110a and 110b by magnetic hysteresis.
- the high frequency current applied to the induction coil parts 120a and 120b is preferably 20 to 40Khz.
- the feed rate of the magnetic steel belt (110a, 110b) is preferably in the range of 2 ⁇ 40m per minute.
- the heating is not enough to achieve a smooth bonding, if the frequency is higher than the above range may lose flexibility due to excessive impregnation.
- the induction coil parts 120a and 120b are the upper induction coil part 120a formed above the upper magnetic steel belt 110a and the lower induction coil part 120b formed below the lower magnetic steel belt 110b.
- the upper induction coil portion 120a and the lower induction coil portion 120b are provided with contacts (not shown) on both sides.
- the induction coil parts 120a and 120b connected are surrounded by a pair of magnetic steel belts 110a and 110b, so that induction The magnetic steel belts 110a and 110b are heated by the high frequency current flowing through the coil parts 120a and 120b.
- the induction coil parts 120a and 120b are formed to be detachable up and down by being connected to a contact point to facilitate loading of the material at an initial stage and to secure convenience of maintenance.
- the cooling units 130a and 130b serve to cool and simultaneously harden the thermoplastic plastic tape and glass fiber joined on the downstream side of the induction coil units 120a and 120b.
- the cooling units 130a and 130a should be cooled while applying a load in the direction of pressing them up and down the pair of magnetic steel belts 110a and 110b.
- the cooling units 130a and 130a may use a pressure roller in which cooling water flows. By supplying cooling water to the inside of the pressure roller, the temperature of the pressure roller itself is kept low, thereby cooling the magnetic steel belts 110a and 110b in contact therewith and applying pressure thereto.
- the cooling unit (130a, 130a) is also formed to be able to move up and down like the induction coil portion, it is preferable to be able to adjust the interval of the pair of magnetic steel belt (110a, 110b) as shown in FIG. . That is, when the cooling unit (130a, 130b) is composed of a pressure roller flowing the cooling water therein, the pressure roller should be formed to be movable in the vertical direction.
- the present invention by applying a high-frequency induction heating method to compensate for the eccentricity of the steel belt due to the multiple roll contact and heat loss caused by the radiant heat chamber method that can occur in the conventional heating method by the heating roll method, This results in the effect of rapid heating, precise and uniform temperature control, and equivalent performance with approximately 10% power consumption.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Moulding By Coating Moulds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Press Drives And Press Lines (AREA)
- General Induction Heating (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
Claims (7)
- 광폭으로 펼쳐진 유리섬유 다발 양면에 열가소성 플라스틱 테이프를 공급하여 이를 가열, 압착, 냉각시켜 열가소성 플라스틱 연속섬유 혼성복합체를 제조하기 위한 장치에 있어서,연속적으로 공급되는 상기 유리섬유와 상기 열가소성 플라스틱 테이프의 상하에 배치되어 서로 반대 방향으로 회전하여, 유리섬유 및 열가소성 플라스틱 테이프를 상하에서 압착하며 이송하는 한 쌍의 도자성 스틸벨트;상기 한 쌍의 도자성 스틸벨트의 입측과 출측에 각각 구비되어 상기 도자성 스틸벨트를 이송시키는 입측스프로킷과 출측스프로킷;상기 도자성 스틸벨트를 감싸는 형태로 상판과 하판으로 분할 형성되는 유도코일부; 및상기 유도코일부의 하류 측에 형성되어 유도코일부에서 열용융 함침된 열가소성 플라스틱 연속섬유 혼성복합체의 양면을 가압함과 동시에 냉각시키는 냉각부;를 포함하며,상기 유도코일부는 상판과 하판이 개폐가 가능하도록 형성되는 것을 특징으로 하는 고주파 유도가열 더블스틸벨트 프레스 장치.
- 제 1 항에 있어서,상기 유도코일부는 상판과 하판의 양측에 각각 접점을 구비하여, 도자성 스틸벨트의 승하강에 따라 상기 접점이 단속가능하도록 형성되는 것을 특징으로 하는 고주파 유도가열 더블스틸벨트 프레스 장치.
- 제 1 항에 있어서,상기 입측스프로킷 또는 출측스프로킷은 수평방향으로 이동가능하도록 형성되어, 상기 도자성 스틸벨트의 장력을 조절하는 것을 특징으로 하는 고주파 유도가열 더블스틸벨트 프레스 장치.
- 제 1 항에 있어서,상기 유리섬유의 이송속도는 분당 2~40m 범위이고,상기 유도코일부에 인가되는 고주파 전류는 20~40Khz 인 것을 특징으로 하는 고주파 유도가열 더블스틸벨트 프레스 장치.
- 제 1 항에 있어서,상기 냉각부는 냉각수가 내부로 흐르는 가압롤러를 포함하는 것을 특징으로 하는 고주파 유도가열 더블스틸벨트 프레스 장치.
- 제 5 항에 있어서,상기 가압롤러는 상하 방향으로 이동가능하게 형성되는 것을 특징으로 하는 고주파 유도가열 더블스틸벨트 프레스 장치.
- 제 1 항에 있어서,상기 도자성 스틸벨트는 알루미늄, 구리, 스테인레스 스틸 및 탄소강 중 어느 하나의 재질인 것을 특징으로 하는 고주파 유도가열 더블스틸벨트 프레스 장치.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012551103A JP5528577B2 (ja) | 2010-02-22 | 2011-02-18 | 高周波誘導加熱ダブルスチールベルトプレス装置 |
CN201180010457.5A CN102753330B (zh) | 2010-02-22 | 2011-02-18 | 高频感应加热双金属带压制装置 |
EP11744921.5A EP2540475B1 (en) | 2010-02-22 | 2011-02-18 | High frequency induction heating double steel belt press apparatus |
US13/578,943 US9210741B2 (en) | 2010-02-22 | 2011-02-18 | High frequency induction heating double steel belt press apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR10-2010-0015554 | 2010-02-22 | ||
KR1020100015554A KR101293892B1 (ko) | 2010-02-22 | 2010-02-22 | 고주파 유도가열 더블스틸벨트 프레스 장치 |
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WO2011102679A2 true WO2011102679A2 (ko) | 2011-08-25 |
WO2011102679A3 WO2011102679A3 (ko) | 2012-01-12 |
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PCT/KR2011/001101 WO2011102679A2 (ko) | 2010-02-22 | 2011-02-18 | 고주파 유도가열 더블스틸벨트 프레스 장치 |
Country Status (6)
Country | Link |
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US (1) | US9210741B2 (ko) |
EP (1) | EP2540475B1 (ko) |
JP (1) | JP5528577B2 (ko) |
KR (1) | KR101293892B1 (ko) |
CN (1) | CN102753330B (ko) |
WO (1) | WO2011102679A2 (ko) |
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CN103112234A (zh) * | 2013-03-04 | 2013-05-22 | 苏州裕克施乐塑料制品有限公司 | 复合材料薄板生产方法及其双张紧装置 |
WO2015012043A1 (ja) * | 2013-07-22 | 2015-01-29 | 株式会社瑞光 | シール装置及びシール方法 |
CN103753806B (zh) * | 2014-01-07 | 2015-12-09 | 肖青 | 爪式旋开盖垫片安装设备及其制作方法 |
US10321524B2 (en) * | 2014-01-17 | 2019-06-11 | Nike, Inc. | Conveyance curing system |
CN103921454B (zh) * | 2014-04-22 | 2016-04-27 | 湖南大学 | 一种加热均匀且耐高温的复合材料生产系统 |
KR101693593B1 (ko) * | 2014-10-30 | 2017-01-09 | 한국생산기술연구원 | 열 전달 이송벨트를 이용한 프리프레그 제조장치 |
SG10201502704VA (en) | 2015-04-07 | 2016-11-29 | Singnergy Corp Pte Ltd | Apparatus and method for improved evaporation drying |
CN111032326B (zh) * | 2017-06-14 | 2022-04-19 | Php纤维有限公司 | 条形复合材料 |
JP6334795B1 (ja) * | 2017-09-05 | 2018-05-30 | プロセスシステム株式会社 | ダブルベルトプレス装置および誘導加熱プレスモジュール |
KR102162644B1 (ko) * | 2018-11-08 | 2020-10-08 | 주식회사 남전산업 | 자기보강복합재 제조장치 및 이를 이용하여 제조된 자기보강복합재 |
DE102018130019B4 (de) | 2018-11-27 | 2021-02-25 | Azl Aachen Gmbh | Vorrichtung zur pressenden Bearbeitung von Flachmaterial |
KR102288668B1 (ko) * | 2020-01-21 | 2021-08-11 | 주식회사 엠쓰리 | 더블벨트 프레스 장치 |
JP2022053622A (ja) * | 2020-09-25 | 2022-04-06 | 株式会社Ihi物流産業システム | ダブルベルトプレス装置 |
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-
2010
- 2010-02-22 KR KR1020100015554A patent/KR101293892B1/ko active IP Right Grant
-
2011
- 2011-02-18 EP EP11744921.5A patent/EP2540475B1/en not_active Not-in-force
- 2011-02-18 US US13/578,943 patent/US9210741B2/en not_active Expired - Fee Related
- 2011-02-18 CN CN201180010457.5A patent/CN102753330B/zh not_active Expired - Fee Related
- 2011-02-18 WO PCT/KR2011/001101 patent/WO2011102679A2/ko active Application Filing
- 2011-02-18 JP JP2012551103A patent/JP5528577B2/ja not_active Expired - Fee Related
Non-Patent Citations (2)
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Also Published As
Publication number | Publication date |
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JP5528577B2 (ja) | 2014-06-25 |
JP2013517970A (ja) | 2013-05-20 |
CN102753330B (zh) | 2014-11-05 |
EP2540475A4 (en) | 2015-06-03 |
US9210741B2 (en) | 2015-12-08 |
CN102753330A (zh) | 2012-10-24 |
US20120318461A1 (en) | 2012-12-20 |
EP2540475B1 (en) | 2018-05-02 |
EP2540475A2 (en) | 2013-01-02 |
WO2011102679A3 (ko) | 2012-01-12 |
KR101293892B1 (ko) | 2013-08-06 |
KR20110096225A (ko) | 2011-08-30 |
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