WO2008099698A1 - 燃料電池用電解質膜及び燃料電池用電解質膜・電極接合体の製造方法 - Google Patents

燃料電池用電解質膜及び燃料電池用電解質膜・電極接合体の製造方法 Download PDF

Info

Publication number
WO2008099698A1
WO2008099698A1 PCT/JP2008/051747 JP2008051747W WO2008099698A1 WO 2008099698 A1 WO2008099698 A1 WO 2008099698A1 JP 2008051747 W JP2008051747 W JP 2008051747W WO 2008099698 A1 WO2008099698 A1 WO 2008099698A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrolyte membrane
fuel cell
producing electrolyte
resin
electrode assembly
Prior art date
Application number
PCT/JP2008/051747
Other languages
English (en)
French (fr)
Inventor
Mitsuhito Takahashi
Original Assignee
Shin-Etsu Chemical Co., Ltd.
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 Shin-Etsu Chemical Co., Ltd. filed Critical Shin-Etsu Chemical Co., Ltd.
Priority to EP08704424A priority Critical patent/EP2124277A4/en
Priority to US12/527,196 priority patent/US8609743B2/en
Publication of WO2008099698A1 publication Critical patent/WO2008099698A1/ja

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/20—Manufacture of shaped structures of ion-exchange resins
    • C08J5/22—Films, membranes or diaphragms
    • C08J5/2287—After-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/12—Chemical modification
    • C08J7/16—Chemical modification with polymerisable compounds
    • C08J7/18—Chemical modification with polymerisable compounds using wave energy or particle radiation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/102—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer
    • H01M8/1023—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having only carbon, e.g. polyarylenes, polystyrenes or polybutadiene-styrenes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/102—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer
    • H01M8/1025—Polymeric electrolyte materials characterised by the chemical structure of the main chain of the ion-conducting polymer having only carbon and oxygen, e.g. polyethers, sulfonated polyetheretherketones [S-PEEK], sulfonated polysaccharides, sulfonated celluloses or sulfonated polyesters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/1039—Polymeric electrolyte materials halogenated, e.g. sulfonated polyvinylidene fluorides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1016—Fuel cells with solid electrolytes characterised by the electrolyte material
    • H01M8/1018—Polymeric electrolyte materials
    • H01M8/1069—Polymeric electrolyte materials characterised by the manufacturing processes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M2008/1095—Fuel cells with polymeric electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0065—Solid electrolytes
    • H01M2300/0082—Organic polymers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Toxicology (AREA)
  • Materials Engineering (AREA)
  • Fuel Cell (AREA)
  • Graft Or Block Polymers (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Conductive Materials (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

　樹脂に紫外線を照射した後、ラジカル重合性モノマーと接触させ、光重合開始剤を使用せずにグラフト重合させることを特徴とする燃料電池用電解質膜の製造方法。 　本発明の燃料電池用電解質膜は、紫外線照射グラフト重合法により得られる燃料電池用電解質膜であって、優れた耐酸化性と機械特性を兼ね備えたもので、この電解質膜を用いることで、非常に高性能の燃料電池とすることができる。
PCT/JP2008/051747 2007-02-16 2008-02-04 燃料電池用電解質膜及び燃料電池用電解質膜・電極接合体の製造方法 WO2008099698A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08704424A EP2124277A4 (en) 2007-02-16 2008-02-04 METHOD FOR PRODUCING AN ELECTROLYTE MEMBRANE FOR A FUEL CELL AND METHOD FOR PRODUCING AN ELECTROLYTE MEMBRANE ELECTRODE ASSEMBLY FOR A FUEL CELL
US12/527,196 US8609743B2 (en) 2007-02-16 2008-02-04 Method for producing electrolyte membrane for fuel cell and method for producing electrolyte membrane-electrode assembly for fuel cell

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-036023 2007-02-16
JP2007036023 2007-02-16

Publications (1)

Publication Number Publication Date
WO2008099698A1 true WO2008099698A1 (ja) 2008-08-21

Family

ID=39689942

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/051747 WO2008099698A1 (ja) 2007-02-16 2008-02-04 燃料電池用電解質膜及び燃料電池用電解質膜・電極接合体の製造方法

Country Status (5)

Country Link
US (1) US8609743B2 (ja)
EP (1) EP2124277A4 (ja)
JP (1) JP5158353B2 (ja)
KR (1) KR20090119675A (ja)
WO (1) WO2008099698A1 (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010058848A1 (ja) * 2008-11-21 2010-05-27 日本メディカルマテリアル株式会社 グラフト重合方法およびその生成物
JP2011112775A (ja) 2009-11-25 2011-06-09 Ricoh Co Ltd 現像装置および画像形成装置およびプロセスカートリッジ
JP6923894B2 (ja) * 2017-04-24 2021-08-25 株式会社トクヤマデンタル 接着性ポリアリールエーテルケトン樹脂材料の製造方法、及びポリアリールエーテルケトン樹脂材料と被着体との接着方法
US11244704B2 (en) 2019-09-17 2022-02-08 International Business Machines Corporation Magnetic recording tape having resilient substrate
US11315596B2 (en) 2019-09-17 2022-04-26 International Business Machines Corporation Magnetic recording tape fabrication method having peek substrate

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000306605A (ja) * 1999-04-22 2000-11-02 Dainippon Ink & Chem Inc 活性エネルギー線硬化性高分子固体電解質およびその製造方法
JP2002313364A (ja) 2001-04-13 2002-10-25 Hitachi Cable Ltd 燃料電池用電解質膜及びその製造方法並びに燃料電池
JP2003082129A (ja) 2001-09-17 2003-03-19 Japan Atom Energy Res Inst 優れた耐酸化性と高いイオン交換容量を有するフッ素系高分子イオン交換膜及びその製造方法
JP2004526278A (ja) * 2001-01-09 2004-08-26 イー．シー．アール．−エレクトロ−ケミカル リサーチ リミテッド プロトンの選択的伝導性膜
JP2005078871A (ja) * 2003-08-29 2005-03-24 Shin Etsu Chem Co Ltd 固体高分子電解質膜の製造方法及び燃料電池
JP2006291161A (ja) * 2005-03-16 2006-10-26 Toyota Motor Corp グラフトポリマー、高分子電解質膜、これらの製造方法、及びそれを用いた燃料電池
WO2006123529A1 (ja) * 2005-05-18 2006-11-23 Toagosei Co., Ltd. 膜電極接合体および直接液体燃料形燃料電池

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3894002B2 (ja) * 2002-03-07 2007-03-14 株式会社豊田中央研究所 膜電極接合体並びにこれを備える燃料電池及び電気分解セル
JP2006344552A (ja) 2005-06-10 2006-12-21 Japan Atomic Energy Agency 架橋型電解質膜及びその製造方法
JP5137174B2 (ja) * 2006-10-06 2013-02-06 独立行政法人日本原子力研究開発機構 シラン架橋構造を付与した燃料電池用高分子電解質膜の製造方法
JP2008195748A (ja) * 2007-02-08 2008-08-28 Japan Atomic Energy Agency 架橋芳香族高分子電解質膜及びその製造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000306605A (ja) * 1999-04-22 2000-11-02 Dainippon Ink & Chem Inc 活性エネルギー線硬化性高分子固体電解質およびその製造方法
JP2004526278A (ja) * 2001-01-09 2004-08-26 イー．シー．アール．−エレクトロ−ケミカル リサーチ リミテッド プロトンの選択的伝導性膜
JP2002313364A (ja) 2001-04-13 2002-10-25 Hitachi Cable Ltd 燃料電池用電解質膜及びその製造方法並びに燃料電池
JP2003082129A (ja) 2001-09-17 2003-03-19 Japan Atom Energy Res Inst 優れた耐酸化性と高いイオン交換容量を有するフッ素系高分子イオン交換膜及びその製造方法
JP2005078871A (ja) * 2003-08-29 2005-03-24 Shin Etsu Chem Co Ltd 固体高分子電解質膜の製造方法及び燃料電池
JP2006291161A (ja) * 2005-03-16 2006-10-26 Toyota Motor Corp グラフトポリマー、高分子電解質膜、これらの製造方法、及びそれを用いた燃料電池
WO2006123529A1 (ja) * 2005-05-18 2006-11-23 Toagosei Co., Ltd. 膜電極接合体および直接液体燃料形燃料電池

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
JINHUA CHEN ET AL.: "Polytetrafluoroethylene-Based Proton-Conducting Membranes Prepared by Ultraviolet-Induced Photografting", ELECTROCHEMICAL AND SOLID-STATE LETTERS, vol. 9, no. 11, 2006, pages G326 - G329, XP008117131 *
JINHUA CHEN ET AL.: "Preparation of ETFE-based fuel cell membranes using UV-induced photografting and electron beam-induced crosslinking techniques", JOURNAL OF MEMBRANE SCIENCE, vol. 283, 2006, pages 373 - 379, XP005628944 *
JINHUA CHEN ET AL.: "Preparation of Fuel Cell Membranes by Photografting in Vapor and Liquid Phases", ELECTROCHEMICAL AND SOLID-STATE LETTERS, vol. 9, no. 5, 2006, pages G184 - G186, XP008117129 *
See also references of EP2124277A4
YOSHIDA M. ET AL.: "Kobunshi Kizai no Tokusei o Ikashita Koseino Nenryo Denchimaku no Kaihatsu ni Mukete", RADIATION AND INDUSTRIES, no. 114, 1 June 2007 (2007-06-01), pages 15 - 21 *

Also Published As

Publication number Publication date
US20100024951A1 (en) 2010-02-04
US8609743B2 (en) 2013-12-17
EP2124277A4 (en) 2010-05-19
JP2008226833A (ja) 2008-09-25
EP2124277A1 (en) 2009-11-25
KR20090119675A (ko) 2009-11-19
JP5158353B2 (ja) 2013-03-06

Similar Documents

Publication Publication Date Title
WO2008090774A1 (ja) 高分子電解質膜及びその製法、並びに膜－電極接合体及び固体高分子型燃料電池
WO2008099698A1 (ja) 燃料電池用電解質膜及び燃料電池用電解質膜・電極接合体の製造方法
EP2131429A4 (en) MEMBRANE-MEMBRANE REINFORCEMENT MEMBER ASSEMBLY, MEMBRANE-CATALYST LAYER ASSEMBLY, MEMBRANE-ELECTRODE ASSEMBLY, POLYMER ELECTROLYTIC FUEL CELL, AND METHOD FOR PRODUCING MEMBRANE-ELECTRODE ASSEMBLY
EP1876666A4 (en) MEA, MEA MANUFACTURING METHOD, AND HIGHLY POLYMER ELECTROLYTE FUEL CELL
WO2010022963A3 (en) Proton exchange membrane for use in proton exchange membrane fuel cells
GB2458079B (en) Anion exchange membranes
EP1737000A4 (en) ELECTROLYTIC MEMBRANE, METHOD FOR MANUFACTURING MEMBRANE ELECTRODE ASSEMBLY, AND ELECTROCHEMICAL CELL
WO2008088595A3 (en) Photovoltaic cell with silole-containing polymer
EP2053679A4 (en) REINFORCED ELECTROLYTE MEMBRANE FOR A FUEL CELL, MANUFACTURING METHOD THEREFOR, MEMBRANE ELECTRODE ASSEMBLY FOR A FUEL CELL AND FESTPOLYMER FUEL CELL THEREWITH
EP1944820A4 (en) POLYMER ELECTROLYTE, POLYMER ELECTROLYTE MEMBRANE L USING THE SAME, MEMBRANE-ELECTRODE ASSEMBLY, AND FUEL CELL
EP2131431A4 (en) MEMBRANE ELECTRODE CONTAINER, PROTON-CONDUCTIVE MEMBRANE WITH BONUS LAYER, MEMBRANE ELECTRODE ASSEMBLY, FETTOLYMER FUEL CELL AND METHOD FOR PRODUCING A MEMBRANE ELECTRODE ASSEMBLY
JP2005158615A5 (ja)
WO2011057768A3 (en) Composite proton conducting membrane with low degradation and membrane electrode assembly for fuel cells including the same
EP1777767A4 (en) ELECTROLYTIC MEMBRANE FOR SOLID POLYMER FUEL CELL, METHOD FOR MANUFACTURING THE SAME, AND MEMBRANE ELECTRODE ASSEMBLY FOR SOLID POLYMER FUEL CELL
WO2009004958A1 (ja) 膜電極接合体及び膜電極接合体の製造方法、固体高分子形燃料電池
EP2061110B8 (en) Reinforced electrolyte membrane for fuel cell, method for production thereof, membrane-electrode assembly for fuel cell, and solid polymer-type fuel cell having the assembly
WO2009034861A1 (ja) 光拡散板用樹脂組成物、光拡散板及びその製造方法
HK1136693A1 (zh) 固體電解質燃料電池的聚合物電解質膜、固體聚合物燃料電池的膜電極組件及固體聚合物燃料電池的製造方法
TW200737230A (en) Electrically conductive composite
WO2011006625A8 (de) Verfahren zum betrieb einer brennstoffzelle und zugehörige brennstoffzelle
EP2128920A4 (en) PROTON CONDUCTIVE FILM, MEMBRANE-ELECTRODE ASSEMBLY AND SOLID POLYMER ELECTRODE FUEL CELL
EP1798793A4 (en) ELECTROLYTIC POLYMER FOR FUEL CELL, PROCESS FOR PRODUCING THE SAME, ELECTROLYTIC MEMBRANE, AND MEMBRANE ELECTRODE ASSEMBLY
FR2921518B1 (fr) Procede d'elaboration de membranes conductrices de protons de pile a combustible par radiogreffage
EP2011806A4 (en) VINYL POLYMER OF SULFON GROUP-BASED MONOMER, METHOD OF MANUFACTURE THEREOF, POLYMER ELECTROLYTE, POLYMER ELECTROLYTE MEMBRANE AND FUEL CELL
JP2013122915A5 (ja)

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 1020087024395

Country of ref document: KR

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08704424

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 12527196

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

REEP Request for entry into the european phase

Ref document number: 2008704424

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2008704424

Country of ref document: EP