WO2005065852A1 - 太陽電池モジュールの構成部材の分別方法 - Google Patents
太陽電池モジュールの構成部材の分別方法 Download PDFInfo
- Publication number
- WO2005065852A1 WO2005065852A1 PCT/JP2004/019358 JP2004019358W WO2005065852A1 WO 2005065852 A1 WO2005065852 A1 WO 2005065852A1 JP 2004019358 W JP2004019358 W JP 2004019358W WO 2005065852 A1 WO2005065852 A1 WO 2005065852A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- solar cell
- eva
- cell module
- limonene
- module
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000000470 constituent Substances 0.000 title claims abstract description 5
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 37
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 37
- 239000002904 solvent Substances 0.000 claims abstract description 32
- XMGQYMWWDOXHJM-JTQLQIEISA-N (+)-α-limonene Chemical compound CC(=C)[C@@H]1CCC(C)=CC1 XMGQYMWWDOXHJM-JTQLQIEISA-N 0.000 claims abstract description 15
- 239000011521 glass Substances 0.000 claims description 14
- XMGQYMWWDOXHJM-UHFFFAOYSA-N limonene Chemical compound CC(=C)C1CCC(C)=CC1 XMGQYMWWDOXHJM-UHFFFAOYSA-N 0.000 claims description 6
- 229940087305 limonene Drugs 0.000 claims description 4
- 238000005194 fractionation Methods 0.000 claims description 2
- 235000001510 limonene Nutrition 0.000 claims description 2
- 150000003505 terpenes Chemical class 0.000 description 11
- 235000007586 terpenes Nutrition 0.000 description 11
- 239000000463 material Substances 0.000 description 8
- 238000007654 immersion Methods 0.000 description 5
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 4
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- UPZFLZYXYGBAPL-UHFFFAOYSA-N 2-ethyl-2-methyl-1,3-dioxolane Chemical compound CCC1(C)OCCO1 UPZFLZYXYGBAPL-UHFFFAOYSA-N 0.000 description 1
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 235000019499 Citrus oil Nutrition 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- PBAYDYUZOSNJGU-UHFFFAOYSA-N chelidonic acid Natural products OC(=O)C1=CC(=O)C=C(C(O)=O)O1 PBAYDYUZOSNJGU-UHFFFAOYSA-N 0.000 description 1
- 239000010500 citrus oil Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- 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
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
- C08J11/08—Recovery or working-up of waste materials of polymers without chemical reactions using selective solvents for polymer components
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Definitions
- the present invention relates to a method for softening or fluidizing an ethylene-vinyl acetate copolymer (EVA), and more specifically, a solar battery cell sealed with an ethylene-acetic acid butyl copolymer layer.
- EVA ethylene-vinyl acetate copolymer
- the present invention relates to a method for separating provided solar cell modules.
- a solar cell module is a laminated composite material made of surface glass, solar cells, a back surface material, and the like. At present, the most popular solar cell system uses a crystalline solar cell module, and generally has a structure in which a back surface material, solar cells sealed in EVA, and glass are laminated. (See Figure 1).
- EVA encapsulates and encapsulates solar cells.
- EVA is firmly bonded to encapsulated solar cells and adjacent surface glass, so they can be damaged without damaging the surface glass or solar cells.
- As a method for separating and recovering these components only a method of softening or fluidizing EVA using an organic solvent such as trichloroethylene or 0-dichlorobenzene is known.
- Non-Patent Document 1 Tsuda, Iwata, Sakuta, Kurokawa, "Preliminary study of organic solvent method in PV module recycling", 1998 IEEJ Power's Energy Division Annual Conference, pp.675-676
- Non-Patent Document 2 Iwata, Tsuda, Murata, Sakuta, Kurokawa, "Experimental Study on PV Module Recycling (2)", Solar Z Wind Energy Lectures (1998), pp.141-144
- Non-Patent Document 3 Hirota, Tsuda, Murata, Sakuta, Kurokawa, “Examination of o-dichlorobenzene method in PV module recycling”, 1999 IEEJ National Conference Proceedings, pp.7-379-7-380
- the present invention is capable of softening, fluidizing or dissolving EVA and removing the EVA by using an organic solvent with high safety, and separately recovering the constituent members of the solar cell module.
- the purpose is to provide a method.
- the present invention includes the following inventions.
- the EVA layer of a solar battery module having solar cells sealed with an ethylene-vinyl acetate copolymer (EVA) layer is brought into contact with the (d) -limonene-containing solvent.
- the invention's effect [0014] According to the present invention, there is provided a method for separating and recovering solar cell module components and components using a naturally-occurring terbene-containing solvent with high safety to the human body and low environmental burden.
- FIG. 1 is a cross-sectional view of an example of a solar cell module.
- PV module As a solar cell module (hereinafter also referred to as "PV module") used in the method of the present invention, an ethylene-vinyl acetate copolymer (EVA) layer is used as a filler or a sealing of a solar cell. If it has as a stop material, it will not be specifically limited.
- EVA ethylene-vinyl acetate copolymer
- FIG. 1 As an example of the PV module, there is a super straight type as shown in FIG. 1 including structural members such as a surface glass, a crystalline solar cell sealed with EVA, and a back surface material.
- the terpene-containing solvent used in the present invention is not particularly limited as long as it is a solvent containing (d) -limonene, and may be a mixed solvent with other solvents (for example, isoparaffin, ethanol, etc.). It is preferable, but a solvent containing 75 vol% or more of (d) -limonene is preferred in the solvent. A solution containing 90 vol% or more of (d) -limonene is preferred (d) -limonene containing 98 vol% or more. Is more preferable.
- the method of the present invention is performed by bringing the PV module as described above into contact with a terpene-containing solvent.
- Examples of the method of bringing the PV module into contact with the terpene-containing solvent include a method of immersing the PV module in the terpene-containing solvent.
- EVA can be easily removed by softening or fluidizing, and the structural member such as surface glass that has been firmly adhered to EVA is damaged or its performance is deteriorated. It can be easily recovered without any need to let it go. Moreover, each component of the PV module separated and collected by the method of the present invention can be reused as it is for manufacturing a new PV module.
- Solvent A (d) -Limonene (purity 98%) solution extracted from natural citrus oil
- Solvent B Solution A75vol% + Isoparaffin 25vol%
- Solvent C (dl) -Limonene (70% purity (99% d), Dipentene Z1 from Yashara Chemical Co.)
- Solvent D (1) -Limonene (92% purity, manufactured by ACROS)
- a single cell module (longitudinal) 120 mm x (horizontal) 120 mm x (thickness) 5 mm as shown in FIG. 1 was used as the PV module.
- the dimensions of each component of the PV module are as follows.
- the general experimental procedure is as follows. Place a PV module and (d) -limonene-containing solvent in a container such as a stainless steel vat. The solvent temperature was room temperature and the PV module was left immersed. In some cases, ultrasonic waves were applied during immersion. After soaking for a predetermined time, the PV module was taken out and dried. Immediately after the immersion and after drying, the state of the PV module (EVA exfoliation, degree of outflow, ease of glass separation, etc.) was observed.
- the test was performed by changing the test conditions such as the type of solvent, ultrasonic wave application time, presence / absence of the back material, clamping means, and immersion time. The results are shown in Table 1.
- the surface glass can be separated and recovered very well when a solvent containing (d) -limonene of 75 vol% or more is used. Furthermore, it is possible to significantly reduce the time required for separation by applying ultrasonic waves.
- TCE has a significant impact on the environment and human body
- (d) -limonene used in the present invention is a natural product contained in orange peel and the like. Since there is no influence on the environment and the human body, each component of the solar cell module can be separated and collected safely.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Sustainable Development (AREA)
- Processing Of Solid Wastes (AREA)
- Chemical Kinetics & Catalysis (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2005516841A JPWO2005065852A1 (ja) | 2004-01-06 | 2004-12-24 | 太陽電池モジュールの構成部材の分別方法 |
Applications Claiming Priority (2)
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JP2004-001408 | 2004-01-06 | ||
JP2004001408 | 2004-01-06 |
Publications (1)
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WO2005065852A1 true WO2005065852A1 (ja) | 2005-07-21 |
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PCT/JP2004/019358 WO2005065852A1 (ja) | 2004-01-06 | 2004-12-24 | 太陽電池モジュールの構成部材の分別方法 |
Country Status (2)
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WO (1) | WO2005065852A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010104929A (ja) * | 2008-10-30 | 2010-05-13 | Du Pont Mitsui Polychem Co Ltd | 太陽電池モジュールの分離回収方法 |
DE102011000322A1 (de) * | 2011-01-25 | 2012-07-26 | saperatec GmbH | Trennmedium, Verfahren und Anlage zum Trennen von Mehrschichtsystemen |
JP2014105253A (ja) * | 2012-11-27 | 2014-06-09 | Yokohama Yushi Kogyo Kk | エチレン−酢酸ビニル共重合体の剥離剤 |
CN107214878A (zh) * | 2017-05-16 | 2017-09-29 | 泉州师范学院 | 一种太阳能背板材料的回收方法 |
CN114650888A (zh) * | 2019-11-06 | 2022-06-21 | 太阳能先锋株式会社 | 层叠结构体的分离方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000198875A (ja) * | 1998-04-09 | 2000-07-18 | Matsushita Electric Ind Co Ltd | 難燃剤を含有する熱可塑性樹脂組成物の処理方法 |
Family Cites Families (2)
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JP2001342288A (ja) * | 2000-06-02 | 2001-12-11 | Aasuingu:Kk | 熱可塑性樹脂の再生方法およびその方法に使用される装置 |
JP4000814B2 (ja) * | 2001-10-15 | 2007-10-31 | ソニー株式会社 | 樹脂廃材からの水素回収方法 |
-
2004
- 2004-12-24 JP JP2005516841A patent/JPWO2005065852A1/ja active Pending
- 2004-12-24 WO PCT/JP2004/019358 patent/WO2005065852A1/ja active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000198875A (ja) * | 1998-04-09 | 2000-07-18 | Matsushita Electric Ind Co Ltd | 難燃剤を含有する熱可塑性樹脂組成物の処理方法 |
Non-Patent Citations (1)
Title |
---|
UNAGIDA H ET AL: "Experimental investigation of PV module recycling (2).", JOINT CONFERENCE (JAPAN WIND ENERGY ASSOCIATION, JPAN SOLAR ENERGY SOCIETY), 1998, pages 141 - 144, XP002996433 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010104929A (ja) * | 2008-10-30 | 2010-05-13 | Du Pont Mitsui Polychem Co Ltd | 太陽電池モジュールの分離回収方法 |
DE102011000322A1 (de) * | 2011-01-25 | 2012-07-26 | saperatec GmbH | Trennmedium, Verfahren und Anlage zum Trennen von Mehrschichtsystemen |
US10618268B2 (en) | 2011-01-25 | 2020-04-14 | saperatec GmbH | Method for separating multilayer systems |
JP2014105253A (ja) * | 2012-11-27 | 2014-06-09 | Yokohama Yushi Kogyo Kk | エチレン−酢酸ビニル共重合体の剥離剤 |
CN107214878A (zh) * | 2017-05-16 | 2017-09-29 | 泉州师范学院 | 一种太阳能背板材料的回收方法 |
CN114650888A (zh) * | 2019-11-06 | 2022-06-21 | 太阳能先锋株式会社 | 层叠结构体的分离方法 |
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JPWO2005065852A1 (ja) | 2007-07-26 |
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