EP2754733A1 - Couche de protection contre la corrosion et l'érosion - Google Patents
Couche de protection contre la corrosion et l'érosion Download PDFInfo
- Publication number
- EP2754733A1 EP2754733A1 EP13151157.8A EP13151157A EP2754733A1 EP 2754733 A1 EP2754733 A1 EP 2754733A1 EP 13151157 A EP13151157 A EP 13151157A EP 2754733 A1 EP2754733 A1 EP 2754733A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- chromium
- protective layer
- substrate
- nitride
- 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.)
- Withdrawn
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/321—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
- C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
- C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
Definitions
- the invention relates to a protective layer against corrosion and erosion of components, which are flowed around by a fluid.
- compressor blades of gas turbines are known which are to be protected against erosion and corrosion.
- FIG. 1 an inventive layer system 1 is shown schematically.
- the layer system 1 in particular for a compressor blade, in particular for a gas turbine 100 (FIG. Fig. 2 ), has a substrate 4.
- an at least two-layer 13 is present, which is in particular only two layers.
- the substrate 4 preferably has a 6% to 18% chromium-containing steel, in particular 12% to 16% chromium steel.
- the underlying layer 7, preferably directly on the substrate 4, serves for corrosion protection, with the outermost layer 10, preferably directly on the underlying layer 7, serving for erosion protection.
- the cathodic corrosion protection is carried out by elemental aluminum (Al), zinc (Zn), magnesium (Mg) and / or alloys (Al-Zn, Al-Mg, Zn-Mg, Al-Zn-Mg) thereof.
- the outermost layer 10 is a hard layer, in particular a metal nitride layer, very particularly CrN, CrAlN (chromium nitride or chromium aluminum nitride layer), TiN and / or TiAlN.
- a metal nitride layer very particularly CrN, CrAlN (chromium nitride or chromium aluminum nitride layer), TiN and / or TiAlN.
- both the lower layer 7 and the outer erosion layer 13 are applied in a coating process, preferably by PVD or sputtering, very particularly by PVD.
- PVD coating is that the roughness of these layers is known to be very good, which provides further advantages from an aerodynamic point of view.
- the layer 13 has a layer thickness of 10 .mu.m to 50 .mu.m.
- the underlying layer 7 preferably has a thickness of 1 ⁇ m-25 ⁇ m, the outer layer 10 has a thickness of 1 ⁇ m-25 ⁇ m.
- the soft bottom layer 7 absorbs the impact energy of the particles, whereby the erosion resistance of the cover layer becomes even higher, and the hard cover layer 10 has increased erosion resistance.
- FIG. 2 shows by way of example a gas turbine 100 in a longitudinal partial section.
- the gas turbine 100 has inside a rotatably mounted about a rotation axis 102 rotor 103 with a shaft 101, which is also referred to as a turbine runner.
- an intake housing 104 a compressor 105, for example, a toroidal combustion chamber 110, in particular annular combustion chamber, with a plurality of coaxially arranged burners 107, a turbine 108 and the exhaust housing 109th
- a compressor 105 for example, a toroidal combustion chamber 110, in particular annular combustion chamber, with a plurality of coaxially arranged burners 107, a turbine 108 and the exhaust housing 109th
- the annular combustion chamber 110 communicates with an annular annular hot gas channel 111, for example.
- annular annular hot gas channel 111 for example.
- turbine stages 112 connected in series form the turbine 108.
- Each turbine stage 112 is formed, for example, from two blade rings. As seen in the direction of flow of a working medium 113, in the hot gas channel 111 of a row of guide vanes 115, a series 125 formed of rotor blades 120 follows.
- the guide vanes 130 are fastened to an inner housing 138 of a stator 143, whereas the moving blades 120 of a row 125 are attached to the rotor 103 by means of a turbine disk 133, for example.
- air 105 is sucked in and compressed by the compressor 105 through the intake housing 104.
- the compressed air provided at the turbine-side end of the compressor 105 is supplied to the burners 107 where it is mixed with a fuel.
- the mixture is then burned to form the working fluid 113 in the combustion chamber 110.
- the working medium 113 flows along the hot gas channel 111 past the guide vanes 130 and the rotor blades 120.
- the working medium 113 expands in a pulse-transmitting manner so that the rotor blades 120 drive the rotor 103 and drive the machine coupled to it.
- the components exposed to the hot working medium 113 are subject to thermal loads during operation of the gas turbine 100.
- the guide vanes 130 and rotor blades 120 of the first turbine stage 112, viewed in the flow direction of the working medium 113, are subjected to the greatest thermal stress in addition to the heat shield elements lining the annular combustion chamber 110.
- substrates of the components may have a directional structure, i. they are monocrystalline (SX structure) or have only longitudinal grains (DS structure).
- iron-, nickel- or cobalt-based superalloys are used as the material for the components, in particular for the turbine blade 120, 130 and components of the combustion chamber 110.
- Such superalloys are for example from EP 1 204 776 B1 .
- EP 1 306 454 .
- the blades 120, 130 may be anti-corrosion coatings (MCrAlX; M is at least one element of the group iron (Fe), cobalt (Co), nickel (Ni), X is an active element and represents yttrium (Y) and / or silicon , Scandium (Sc) and / or at least one element of the rare earths or hafnium).
- M is at least one element of the group iron (Fe), cobalt (Co), nickel (Ni)
- X is an active element and represents yttrium (Y) and / or silicon , Scandium (Sc) and / or at least one element of the rare earths or hafnium.
- Such alloys are known from the EP 0 486 489 B1 . EP 0 786 017 B1 . EP 0 412 397 B1 or EP 1 306 454 A1 ,
- MCrAlX may still be present a thermal barrier coating, and consists for example of ZrO 2 , Y 2 O 3 -ZrO 2 , ie it is not, partially or completely stabilized by yttria and / or calcium oxide and / or magnesium oxide.
- Electron beam evaporation produces stalk-shaped grains in the thermal barrier coating.
- the vane 130 has a guide vane foot (not shown here) facing the inner casing 138 of the turbine 108 and a vane head opposite the vane root.
- the vane head faces the rotor 103 and fixed to a mounting ring 140 of the stator 143.
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13151157.8A EP2754733A1 (fr) | 2013-01-14 | 2013-01-14 | Couche de protection contre la corrosion et l'érosion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13151157.8A EP2754733A1 (fr) | 2013-01-14 | 2013-01-14 | Couche de protection contre la corrosion et l'érosion |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2754733A1 true EP2754733A1 (fr) | 2014-07-16 |
Family
ID=47559291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13151157.8A Withdrawn EP2754733A1 (fr) | 2013-01-14 | 2013-01-14 | Couche de protection contre la corrosion et l'érosion |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2754733A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017005460A1 (fr) * | 2015-07-06 | 2017-01-12 | Siemens Aktiengesellschaft | Couche protectrice à contournage précis pour éléments structuraux de compresseur pour des turbines à gaz |
US11274560B2 (en) | 2017-04-28 | 2022-03-15 | Siemens Energy Global GmbH & Co. KG | Sealing system for a rotor blade and housing |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0366289A1 (fr) * | 1988-10-11 | 1990-05-02 | Midwest Research Technologies, Inc. | Revêtements multicouches résistants à l'usure |
EP0486489B1 (fr) | 1989-08-10 | 1994-11-02 | Siemens Aktiengesellschaft | Revetement anticorrosion resistant aux temperatures elevees, notamment pour elements de turbines a gaz |
EP0412397B1 (fr) | 1989-08-10 | 1998-03-25 | Siemens Aktiengesellschaft | Revêtement protecteur contenant du rhénium possédant une résistance plus grande à la corrosion et l'oxydation |
EP0786017B1 (fr) | 1994-10-14 | 1999-03-24 | Siemens Aktiengesellschaft | Couche de protection de pieces contre la corrosion, l'oxydation et les contraintes thermiques excessives, et son procede de production |
WO1999067435A1 (fr) | 1998-06-23 | 1999-12-29 | Siemens Aktiengesellschaft | Alliage a solidification directionnelle a resistance transversale a la rupture amelioree |
WO2000044949A1 (fr) | 1999-01-28 | 2000-08-03 | Siemens Aktiengesellschaft | Superalliage a base de nickel presentant une bonne usinabilite |
EP1306454A1 (fr) | 2001-10-24 | 2003-05-02 | Siemens Aktiengesellschaft | Revêtement protecteur contenant du rhénium pour la protection d'un élément contre l'oxydation et la corrosion aux températures élevées |
EP1319729A1 (fr) | 2001-12-13 | 2003-06-18 | Siemens Aktiengesellschaft | Pièce résistante à des températures élevées réalisé en superalliage polycristallin ou monocristallin à base de nickel |
EP1204776B1 (fr) | 1999-07-29 | 2004-06-02 | Siemens Aktiengesellschaft | Piece resistant a des temperatures elevees et son procede de production |
EP2226409A2 (fr) * | 2009-03-06 | 2010-09-08 | General Electric Company | Surface portante de compresseur de turbine résistant à l'érosion et à la corrosion et son procédé de fabrication |
US20100247321A1 (en) * | 2008-01-08 | 2010-09-30 | General Electric Company | Anti-fouling coatings and articles coated therewith |
US20120171511A1 (en) * | 2010-12-30 | 2012-07-05 | Hon Hai Precision Industry Co., Ltd. | Process for surface treating aluminum or aluminum alloy and article made with same |
-
2013
- 2013-01-14 EP EP13151157.8A patent/EP2754733A1/fr not_active Withdrawn
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0366289A1 (fr) * | 1988-10-11 | 1990-05-02 | Midwest Research Technologies, Inc. | Revêtements multicouches résistants à l'usure |
EP0486489B1 (fr) | 1989-08-10 | 1994-11-02 | Siemens Aktiengesellschaft | Revetement anticorrosion resistant aux temperatures elevees, notamment pour elements de turbines a gaz |
EP0412397B1 (fr) | 1989-08-10 | 1998-03-25 | Siemens Aktiengesellschaft | Revêtement protecteur contenant du rhénium possédant une résistance plus grande à la corrosion et l'oxydation |
EP0786017B1 (fr) | 1994-10-14 | 1999-03-24 | Siemens Aktiengesellschaft | Couche de protection de pieces contre la corrosion, l'oxydation et les contraintes thermiques excessives, et son procede de production |
WO1999067435A1 (fr) | 1998-06-23 | 1999-12-29 | Siemens Aktiengesellschaft | Alliage a solidification directionnelle a resistance transversale a la rupture amelioree |
WO2000044949A1 (fr) | 1999-01-28 | 2000-08-03 | Siemens Aktiengesellschaft | Superalliage a base de nickel presentant une bonne usinabilite |
EP1204776B1 (fr) | 1999-07-29 | 2004-06-02 | Siemens Aktiengesellschaft | Piece resistant a des temperatures elevees et son procede de production |
EP1306454A1 (fr) | 2001-10-24 | 2003-05-02 | Siemens Aktiengesellschaft | Revêtement protecteur contenant du rhénium pour la protection d'un élément contre l'oxydation et la corrosion aux températures élevées |
EP1319729A1 (fr) | 2001-12-13 | 2003-06-18 | Siemens Aktiengesellschaft | Pièce résistante à des températures élevées réalisé en superalliage polycristallin ou monocristallin à base de nickel |
US20100247321A1 (en) * | 2008-01-08 | 2010-09-30 | General Electric Company | Anti-fouling coatings and articles coated therewith |
EP2226409A2 (fr) * | 2009-03-06 | 2010-09-08 | General Electric Company | Surface portante de compresseur de turbine résistant à l'érosion et à la corrosion et son procédé de fabrication |
US20120171511A1 (en) * | 2010-12-30 | 2012-07-05 | Hon Hai Precision Industry Co., Ltd. | Process for surface treating aluminum or aluminum alloy and article made with same |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017005460A1 (fr) * | 2015-07-06 | 2017-01-12 | Siemens Aktiengesellschaft | Couche protectrice à contournage précis pour éléments structuraux de compresseur pour des turbines à gaz |
RU2691822C1 (ru) * | 2015-07-06 | 2019-06-18 | Сименс Акциенгезелльшафт | Повторяющее контур защитное покрытие для деталей компрессора газовых турбин |
US10697068B2 (en) | 2015-07-06 | 2020-06-30 | Siemens Aktiengesellschaft | Contour-following protective layer for compressor components of gas turbines |
US11274560B2 (en) | 2017-04-28 | 2022-03-15 | Siemens Energy Global GmbH & Co. KG | Sealing system for a rotor blade and housing |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1707653B1 (fr) | Système de revêtement | |
EP1954854B1 (fr) | Revêtement de barrière thermique en deux couches contenant une phase pyrochlore | |
EP1951928B1 (fr) | Système de revêtement contenant un phase pyrochlor mixte de gadolinium. | |
EP1990327B1 (fr) | Poudre céramique, couche céramique et système de couche comportant une solution solide de phase structure pyrochlore à base de gadolinium et des oxydes | |
EP2382333B1 (fr) | Alliage, couche de protection et composant | |
EP2576853B1 (fr) | Alliage, couche de protection et composant | |
EP2230329A1 (fr) | Système de couche à double couche poreux doté d'une phase pyrochlore | |
EP1793008A1 (fr) | Alliage, couche protectrice pour proteger un élément structurel contre la corrosion et l'oxydation aux temperatures hautes et élément structurel | |
EP1798299B1 (fr) | Alliage, couche de protection et élément de construction | |
DE202006009603U1 (de) | Zweilagiges Schichtsystem mit Pyrochlor-Phase | |
EP1790743A1 (fr) | Alliage, couche de protection et composant | |
EP1854899A1 (fr) | Alliage, couche de protection et composant | |
EP1783236A1 (fr) | Alliage, couche protectrice pour proteger un élément structurel contre la corrosion et l'oxydation aux temperatures hautes et élément structurel | |
EP2474413A1 (fr) | Alliage, couche de protection et composant | |
EP2754733A1 (fr) | Couche de protection contre la corrosion et l'érosion | |
EP2557201A1 (fr) | Alliage, couche de protection et composant | |
EP2128285A1 (fr) | Couche de MCrAIX à double épaisseur ayant des teneurs en cobalt et nickel différentes | |
WO2015071015A1 (fr) | Système stratifié en céramique poreuse | |
EP1790746B1 (fr) | Alliage, couche de protection et composant | |
EP2474414A1 (fr) | Alliage, couche de protection et composant | |
WO2012059325A2 (fr) | Alliage, couche de protection et élément de construction | |
EP1818419A1 (fr) | Alliage, couche de protection et composant | |
EP2524064A2 (fr) | Alliage, couche de protection et élément de construction | |
EP2206806A1 (fr) | Couche de MCrAIX à double épaisseur ayant des teneurs en cobalt et nickel différentes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20130114 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20150117 |