EP1969162A2 - Procede de pretraitement de composants en titane en vue de leur revetement consecutif - Google Patents

Procede de pretraitement de composants en titane en vue de leur revetement consecutif

Info

Publication number
EP1969162A2
EP1969162A2 EP06818072A EP06818072A EP1969162A2 EP 1969162 A2 EP1969162 A2 EP 1969162A2 EP 06818072 A EP06818072 A EP 06818072A EP 06818072 A EP06818072 A EP 06818072A EP 1969162 A2 EP1969162 A2 EP 1969162A2
Authority
EP
European Patent Office
Prior art keywords
acid
component
solution
nickel
titanium
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.)
Granted
Application number
EP06818072A
Other languages
German (de)
English (en)
Other versions
EP1969162B1 (fr
Inventor
Helena Catalan-Asenjo
Michael Scheid
Josef Linska
Matthias Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines GmbH
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 MTU Aero Engines GmbH filed Critical MTU Aero Engines GmbH
Priority to PL06818072T priority Critical patent/PL1969162T3/pl
Publication of EP1969162A2 publication Critical patent/EP1969162A2/fr
Application granted granted Critical
Publication of EP1969162B1 publication Critical patent/EP1969162B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/16—Acidic compositions
    • C23F1/26—Acidic compositions for etching refractory metals
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/10—Other heavy metals
    • C23G1/106—Other heavy metals refractory metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • C25D5/38—Pretreatment of metallic surfaces to be electroplated of refractory metals or nickel

Definitions

  • the invention relates to a method for the pretreatment of titanium components for the subsequent coating thereof.
  • Titanium materials have high strength with low density, good corrosion resistance and heat resistance. Especially in the aerospace industry and aircraft engine building components made of titanium materials are of great importance. Titanium materials, however, tend to oxidize or sulfide at elevated temperature in the presence of gases. Furthermore, the wear resistance of titanium materials to friction, erosion and fretting is limited. Furthermore, titanium materials tend to stress corrosion cracking.
  • components made of titanium materials In order to improve the behavior of components made of titanium materials, it is known from the prior art to provide surface regions of components made of titanium materials with a metallic coating. By coating the scope of application of titanium components can be extended. Usually, components made of titanium materials are coated with nickel chemically or electrochemically or galvanized. It is also known from the prior art to coat components made of titanium materials with platinum, chromium, zinc or copper.
  • EP 0 072 986 B1 discloses a method for activating the surfaces of titanium components, in which a surface of a titanium component is first wet-blasted with fine-grained aluminum oxide particles, wherein after the wet blasting an activation of the surface with a soldering solution of chromic acid, hydrofluoric acid and hexafluorosilicic acid.
  • chromic acid contains hexavalent chromium (Cr 6+ ), which poses a significant threat to safety, the environment and health.
  • abrasive abrasive blasting can not be carried out uniformly, if components with complex geometries are present, so that a component to be coated is not uniformly activated on all surface areas.
  • the present invention is based on the problem to provide a novel method for the pretreatment of titanium components for the subsequent adherent coating thereof.
  • the process comprises at least the following steps: a) etching of the component in an acidic solution containing fluoride and containing nitric acid (HNO 3 ); b) active etching of the etched component in a solution containing at least sodium nitrate (NaNO 3 ) and tetrafluoroboric acid (HBF 4 ); c) activating the activated pickled component in an acidic bath or an acidic, nickel-containing bath.
  • an adherent, metallic coating thereof can be realized.
  • the inventive method works with solutions for etching, active pickling and activating, which are free of hexavalent chromium. This is advantageous from a security point of view.
  • Another advantage of the method according to the invention is that it consists only of chemical process steps, so that accordingly components with complex geometries or complex shaped surfaces can be uniformly pretreated and coated.
  • Another advantage of the method is that a subsequent coating of the titanium components with z. B. nickel can be done without subsequent heat treatment of the coated components, resulting in cost advantages.
  • the process according to the invention is particularly suitable for the pretreatment of components made from aluminum-containing titanium-based alloys.
  • the subsequent Aktivbeizen is in a solution with at least 10-60 g / l sodium nitrate (NaNO 3 ) and 30-90 g / l tetrafluoroboric acid (HBF 4 ) at a temperature between 30-50 0 C, in particular at 50 ° C, for a Duration of 10-30 min performed.
  • a maximum process temperature of 50 ° C allows wax coverage for subsequent selective coating. This considerably simplifies a selective coating.
  • the inventive method relates to the pretreatment of components made of titanium materials, in particular of aluminum-containing titanium-based alloys, for subsequent metallic coating thereof with, for example, nickel.
  • the pretreatment of the titanium components enables an adherent metallic coating of titanium components.
  • the titanium components are etched in an acidic solution in a first step of the process according to the invention.
  • the acidic and fluoride-containing solution used for etching contains at least nitric acid (HNO 3 ).
  • the component is etched in an aqueous, acidic solution containing 100-350 g / l nitric acid (HNO 3 ) and preferably 20-50 g / l hydrofluoric acid (HF) or 30-70 g / l ammonium biflouiride (NH 4 HF 2 ).
  • etching in the aqueous solution of nitric acid (HNO 3 ) and preferably hydrofluoric acid (HF) or ammonium bifluoride (NH 4 HF 2 ) takes place at room temperature for a period of 1 to 6 minutes.
  • HF hydrofluoric acid
  • NH 4 HF 2 ammonium bifluoride
  • an active pickling of the etched component takes place.
  • the active pickling takes place in an acidic solution, with the active pickling the surface of the titanium component is roughened.
  • the solution used for the active pickling contains at least sodium nitrate (NaNO 3 ) and tetrafluoroboric acid (HBF 4 ).
  • the solution for active pickling contains at least 10-60 g / l of sodium nitrate (NaNO 3 ) and 30-90 g / l of tetrafluoroboric acid (HBF 4 ).
  • the solution used for active pickling contains sodium nitrate (NaNO 3 ) and tetrafluoroboric acid (HBF 4 ) in addition to the composition of such a solution then 25-50 g / l sodium (Na + ) and 45-100 g / l fluorine ( F “ ) and 10-40 g / l NO 3 " .
  • a solution may be used which, in addition to sodium nitrate (NaNO 3 ) and tetrafluoroboric acid (HBF 4 ), also contains sodium hydroxide solution (NaOH) and sodium tetrafluoroborate (NaBF 4 ), the composition of such a solution then preferably being 20-50 g / l Sodium nitrate (NaNO 3 ), 50-70 g / l tetrafluoroboric acid (HBF 4 ), 15-35 g / l sodium hydroxide solution (NaOH) and 5-50 g / l sodium tetrafluoroborate (NaBF 4 ).
  • the pH of the solutions used for the active pickling is between 1.5 and 2.5.
  • the active etching of the etched component with one of the above solutions is preferably carried out at a temperature between 30 and 50 ° C, in particular at 50 ° C, for a period of between 10 and 30 minutes.
  • the titanium of the titanium material of vorzubehandelnden component is very active.
  • Metal ions are dissociated by redox reactions and metal is removed at the surface.
  • Aluminum ions migrate from the titanium alloy into the solution used for pickling, these aluminum ions, with the sodium ions and fluorine ions present in the solution, forming a crystal layer on the surface of the titanium component.
  • the crystal layer consists of sodium aluminum fluoride (Na 3 AlF 6 ), which is also called cryolite.
  • a relatively large roughness wherein this roughness is important for the subsequent coating of the component.
  • the metal attack during the Aktivbeizens must be high enough and be inhibited by sufficient crystallization within a few minutes, this being realized by the above-defined solutions for Aktivbeizen.
  • the formation of the crystal layer during active etching protects the titanium component on its surface against oxidation, so that the titanium remains active under the crystals. This makes it possible to use titanium components after the second step of the method according to the invention. meanwhile, to keep it active for a relatively long period of time.
  • the Aktivbeizen takes place at a temperature between 30 and 50 0 C. This makes it possible, before activating surface portions of the component, which should not be coated below, for example, cover with wax.
  • the inventive method thus allows a selective metallic coating of selected surface areas, which is cheaper by the wax application than with other covering systems.
  • the crystallization taking place during the pickling process is also dependent on the roughness on the surface of the component obtained during the etching of the component. If too low or too high a roughness is formed on the surface of the component during the etching, then the crystals form unevenly during the subsequent active pickling, so that the active pickling does not take place optimally.
  • the process steps of etching and active etching accordingly depend on each other in their implementation.
  • an activation of the active-pickled component takes place.
  • the activation takes place immediately before the metallic coating of the component, wherein upon activation the crystal layer formed during the active pickling is dissolved in order to expose the activated titanium surface of the component to be coated.
  • This activation can be achieved by activating the activated pickled component either in an acidic bath or in an acidic, nickel-containing bath.
  • activation takes place in a bath containing nitric acid at a temperature of between 20 and 50 ° C for a period of between 15 and 40 seconds.
  • activation of the Ti64 alloy component in a nickel-containing bath is carried out at a temperature between 40 and 60 ° C. for a period of 20 to 60 seconds, the component subsequently being electroplated in this nickel-containing bath.
  • a bath change of the component after the activation and before the coating and thus an oxidation of the component during the bath change are avoided, whereby the adhesion of the metallic coating is improved on the component.
  • a component made of an aluminum-containing titanium alloy of the material TiAl6V4 is etched in a first step in an aqueous solution, the aqueous solution containing 350 g / l of 65% nitric acid (HNO 3 ) and 67 g / l of ammonium bifluoride (NH 4 HF 2 ).
  • the etching takes place at room temperature for a period of 2 minutes with stirring of the aqueous solution.
  • the etched component is pickled in a solution containing 40 g / l sodium nitrate (NaNO 3 ), 60 g / l tetrafluoroborate (HBF 4 ), 30 g / l sodium tetrafluoroborate (NaBF 4 ) and 28 g / l sodium hydroxide (NaOH) and having a pH of about 1.7 m.
  • the Aktivbeizen takes place at a temperature of 50 0 C and for a period of 20 minutes.
  • the activation is carried out, namely in a 40% sulfuric acid at a temperature of 20 0 C for a period of 20 seconds.
  • a metallic coating may be of the component are carried out, for which purpose the component in a nickel sulfamate bath at a working temperature of 50 0 C to a Schichdi- blocks of about 800 is coated microns, and wherein the current density during galvanic coating is 2 A / dm 2 .
  • the resulting metallic coating has excellent adhesion.
  • the adhesion of the coating is between 210 and 300 N / mm 2 .
  • components of the TiA16V4 material are etched and actively pickled identical to the first exemplary embodiment, the subsequent activation being carried out in an acidic nickel bath.
  • the nickel bath consists of 300 g / l nickel sulfate (NiSO 4 ), 20 g / l boric acid (H 3 BO 3 ), 8 ml / 1 nickel chloride (NiCl 2 ), 55 ml / 1 amine sulfone and wetting agent.
  • NiSO 4 nickel sulfate
  • H 3 BO 3 boric acid
  • NiCl 2 nickel chloride
  • 55 ml / 1 amine sulfone and wetting agent wetting agent.
  • the thus pre-coated titanium components are placed in a nickel sulfamate bath and further coated at a temperature of 50 ° C with a current density of 2 A / dm 2 .
  • a metallic coating with excellent adhesive strength can be provided.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • ing And Chemical Polishing (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

L'invention concerne un procédé de prétraitement de composants en titane en vue de leur revêtement consécutif. Ce procédé comprend au moins les opérations suivantes: a) attaque du composant dans une solution acide et fluorée contenant de l'acide de salpêtre (HNO3); b) mordançage actif du composant attaqué dans une solution contenant au moins du nitrate de sodium (NaNO3) et de l'acide tétrafluorborique (HBF4); c) activation du composant mordancé activement dans un bain contenant un acide ou dans un bain acide contenant du nickel.
EP06818072.8A 2005-11-21 2006-11-14 Procede de pretraitement de composants en titane en vue de leur revetement consecutif Not-in-force EP1969162B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06818072T PL1969162T3 (pl) 2005-11-21 2006-11-14 Sposób obróbki wstępnej tytanowych elementów konstrukcyjnych w celu późniejszego ich powlekania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005055303A DE102005055303A1 (de) 2005-11-21 2005-11-21 Verfahren zur Vorbehandlung von Titanbauteilen zur nachfolgenden Beschichtung derselben
PCT/DE2006/001992 WO2007059730A2 (fr) 2005-11-21 2006-11-14 Procede de pretraitement de composants en titane en vue de leur revetement consecutif

Publications (2)

Publication Number Publication Date
EP1969162A2 true EP1969162A2 (fr) 2008-09-17
EP1969162B1 EP1969162B1 (fr) 2015-02-25

Family

ID=37739580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06818072.8A Not-in-force EP1969162B1 (fr) 2005-11-21 2006-11-14 Procede de pretraitement de composants en titane en vue de leur revetement consecutif

Country Status (6)

Country Link
US (1) US8354036B2 (fr)
EP (1) EP1969162B1 (fr)
CA (1) CA2628623A1 (fr)
DE (1) DE102005055303A1 (fr)
PL (1) PL1969162T3 (fr)
WO (1) WO2007059730A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080169270A1 (en) * 2007-01-17 2008-07-17 United Technologies Corporation Method of removing a case layer from a metal alloy
DE102015213162A1 (de) * 2015-07-14 2017-01-19 MTU Aero Engines AG Verfahren zum galvanischen Beschichten von TiAl-Legierungen
GB201811056D0 (en) * 2018-07-05 2018-08-22 South West Metal Finishing Ltd Process
CN112981494A (zh) * 2021-02-08 2021-06-18 深圳市钧诚精密制造有限公司 一种具有高吸光率的钛合金微弧氧化工艺

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2864732A (en) * 1953-10-05 1958-12-16 Battelle Development Corp Method of coating titanium articles and product thereof
US3207679A (en) * 1960-05-03 1965-09-21 American Potash & Chem Corp Method for electroplating on titanium
US3562013A (en) * 1967-10-23 1971-02-09 Diversey Corp Process of deoxidizing titanium and its alloys
US3725217A (en) * 1969-07-18 1973-04-03 Ionitech Labor Inc Plating titanium and zirconium and their alloys with nickel,chromium and other heavy metals
US4314876A (en) * 1980-03-17 1982-02-09 The Diversey Corporation Titanium etching solution
DE3133189C2 (de) 1981-08-21 1984-02-09 MTU Motoren- und Turbinen-Union München GmbH, 8000 München "Verfahren zur Aktivierung von Titanoberflächen"
US4655884A (en) * 1985-08-19 1987-04-07 General Electric Company Nickel plating of refractory metals
DE3710950A1 (de) * 1987-04-01 1988-10-13 Licentia Gmbh Verfahren zum herstellen von aetzmustern in glasoberflaechen
US4938850A (en) 1988-09-26 1990-07-03 Hughes Aircraft Company Method for plating on titanium
US4902388A (en) 1989-07-03 1990-02-20 United Technologies Corporation Method for electroplating nickel onto titanium alloys
US5240734A (en) * 1991-05-31 1993-08-31 Healthy Foods Solutions Reduced-fat peanut butter compositions and methods for preparing same
ZA994331B (en) * 1998-07-09 2001-01-02 Unilever Plc Soup and sauce concentrates.
US6056815A (en) * 1999-03-08 2000-05-02 Em Industries, Inc. Methods and compositions related to pearlescent pigments
US20030219523A1 (en) * 2002-05-22 2003-11-27 Michael Foods Of Delaware, Inc. Formulated hollandaise sauce and process for preparation of the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007059730A2 *

Also Published As

Publication number Publication date
EP1969162B1 (fr) 2015-02-25
WO2007059730A2 (fr) 2007-05-31
DE102005055303A1 (de) 2007-05-24
CA2628623A1 (fr) 2007-05-31
US20090218232A1 (en) 2009-09-03
PL1969162T3 (pl) 2015-07-31
WO2007059730A3 (fr) 2007-10-11
US8354036B2 (en) 2013-01-15

Similar Documents

Publication Publication Date Title
DE69706678T2 (de) Galvanisiertes aluminiumblech
DE102012202787A1 (de) Verfahren zum Lackieren eines Werkstücks
EP4073289A1 (fr) Procédé de production d'un produit plat en acier ayant une couche de protection métallique à base de zinc et une couche de phosphatation produite sur une surface de la couche de protection métallique, et produit plat en acier de ce type
DE3030919A1 (de) Zusammensetzung und verfahren zur chemischen abloesung metallischer ablagerungen
AT404943B (de) Schichtwerkstoff und verfahren zu seiner herstellung
DE69318067T2 (de) Verfahren zur Herstellung eines beschichteten Bleches
EP3880860B1 (fr) Procédé pour le zingage, en particulier la galvanisation à chaud, de produits en fer et en acier
EP1969162B1 (fr) Procede de pretraitement de composants en titane en vue de leur revetement consecutif
DE2500160C2 (de) Verfahren zur galvanischen Herstellung von metallischen Knötchen auf metallischen Oberflächen
EP0183925B1 (fr) Procédé pour décaper les parois des trous aménagés dans les plaques en résine synthétique destinées à la fabrication des circuits imprimés
EP2581473B1 (fr) Procédé pour traitement de protection anticorrosion d'une pièce à usiner à base de matière première en aluminium, notamment à partir d'un alliage corroyé d'aluminium
DE19740953A1 (de) Verfahren zur Phosphatierung von Stahlband
CH633828A5 (de) Verfahren zur herstellung von aktiven kathoden, die sich fuer die anwendung in elektrochemischen verfahren eignen.
DE4429936A1 (de) Vorbereitung von Metalloberflächen für das Emaillieren
EP2451997A1 (fr) Système au nickel
DE102020106543A1 (de) Verfahren zum Verzinken eines Bauteils, insbesondere für ein Kraftfahrzeug, sowie Bauteil für ein Kraftfahrzeug
DE3622032A1 (de) Verfahren zum beschichten von titan und aehnlichen werkstoffen
WO2021139973A1 (fr) Élément métallique renfermant du fer pourvu d'une couche de brunissage alliée
DE2443885C3 (de) Verfahren zur Oberflächenbehandlung von Eisenlegierungen durch galvanische Abscheidung einer Kupfer-Zinn-Legierung und anschließende thermische Diffusionsbehandlung
DE4101296C2 (fr)
DE4340073C2 (de) Gleitelement und Verfahren zu seiner Herstellung
DE2213161C3 (de) Verfahren zur Vorbehandlung von Aluminium, Magnesium, Zink oder Legierungen dieser Metalle vor der stromlosen Vernickelung und Anwendung der so vorbehandelten Metalle als Grundmaterial bei der Nickelbeschichtung
DE2834870A1 (de) Verfahren zum galvanomechanischen plattieren von zinn auf vorplattierte artikel
DD200093A1 (de) Verfahren zur chemischen vernickelung von aluminium und aluminiumlegierungen
DE102021102776A1 (de) Aus einem Stahl oder Nickelbasiswerkstoff bestehender Receiver, Verfahren zum Aufbringen einer Schutzschicht auf eine Oberfläche des Receivers und solarthermische Anlage mit einem solchen Receiver

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: 20080604

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT PL

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SCHEID, MICHAEL

Inventor name: CATALAN-ASENJO, HELENA

Inventor name: SCHMIDT, MATTHIAS

Inventor name: LINSKA, JOSEF

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT PL

17Q First examination report despatched

Effective date: 20090324

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MTU AERO ENGINES GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20141017

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502006014212

Country of ref document: DE

Effective date: 20150402

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: MTU AERO ENGINES AG

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502006014212

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20151124

Year of fee payment: 10

Ref country code: GB

Payment date: 20151123

Year of fee payment: 10

Ref country code: DE

Payment date: 20151119

Year of fee payment: 10

26N No opposition filed

Effective date: 20151126

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20151102

Year of fee payment: 10

Ref country code: FR

Payment date: 20151124

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502006014212

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20161114

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161114

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161114

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161114