EP2045029A1 - Production d'aluminium mousse par l'impregnation de mousse de polyurethane avec boue comprenant aluminium et sel - Google Patents

Production d'aluminium mousse par l'impregnation de mousse de polyurethane avec boue comprenant aluminium et sel Download PDF

Info

Publication number
EP2045029A1
EP2045029A1 EP08386018A EP08386018A EP2045029A1 EP 2045029 A1 EP2045029 A1 EP 2045029A1 EP 08386018 A EP08386018 A EP 08386018A EP 08386018 A EP08386018 A EP 08386018A EP 2045029 A1 EP2045029 A1 EP 2045029A1
Authority
EP
European Patent Office
Prior art keywords
slurry
foams
impregnation
aluminium
fabrication
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
EP08386018A
Other languages
German (de)
English (en)
Other versions
EP2045029B1 (fr
Inventor
Dimitrios Tsipas
Mohamad Hidar Omar
Dimitrios Papadopoulos
Sofia Tsipas
Nikolaos Michailidis
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.)
Michailidis Nikolaos
Omar Mohamad Hidar
PAPADOPOULOS, DIMITRIOS
TSIPAS, DIMITRIOS
TSIPAS, SOFIA
Aristotle University of Thessaloniki ELKE Research Committee
Original Assignee
Aristotle University of Thessaloniki
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 Aristotle University of Thessaloniki filed Critical Aristotle University of Thessaloniki
Publication of EP2045029A1 publication Critical patent/EP2045029A1/fr
Application granted granted Critical
Publication of EP2045029B1 publication Critical patent/EP2045029B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/11—Making porous workpieces or articles
    • B22F3/1121—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers
    • B22F3/1137—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers by coating porous removable preforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/11—Making porous workpieces or articles
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy

Definitions

  • the current invention refers to a fabrication method of porous materials and similar structures. More specifically the invention alms at the improvement of the fabrication method of Al and its alloys with porous structures under conditions of atmospheric pressure and leading to final products with improved structures and properties.
  • Porous materials are known in materials technology as foams or sponges and these materials are fabricated using different methods.
  • the advanced materials with porous structures can be found in the group of polymeric, metallic, ceramic and composite materials.
  • porous structured materials foams or sponges which from now on we will refer as porous materials consist of a group of cells open or closed in structure which leads to much lower density compared to bulk materials.
  • the present invention reports the fabrication of open cell metal foams using organic templates of known 3D geometry.
  • the process involves the step of impregnation of the organic template material with slurry containing alcohol, salts, and Al metal or alloy powder.
  • the impregnated organic template is left to dry at ambient temperature for 24 hours and the heated at temperature between 215 -500°C for 3,5-5 hours so as to obtain the evaporation of the organic template.
  • the final step includes sintering in an inert atmosphere at temperatures between 500°C-525°C for 0,5-1 hr aiming at producing structures with improved properties.
  • Al powder 4 microns average size 97% by weight Al powder 4 microns average size is mixed with 3%AlCl 3 .
  • the above mixture is added to ethanol in the ration 1/40 by volume creating slurry.
  • the template organic material foam is impregnated with the above slurry and left to dry at ambient temperature for 24 hrs.
  • the cell sizes of the organic template foam are selected so as to give the desired size of pores in our final metal foam product.
  • the slurry Impregnated material is placed in a furnace at temperature between 215-500°C for 3,5-5 hrs and using an inert (Ar 2 or N 2 ) atmosphere so as to limit the formation of oxides.
  • the material is then cooled to room temperature and the final stage involves sintering the metal foam structure in the temperature range 500-525°C for 0.5-1 hr, in an inert atmosphere.
EP08386018A 2007-08-02 2008-07-31 Production d'aluminium mousse par l'impregnation de mousse de polyurethane avec boue comprenant aluminium et sel Not-in-force EP2045029B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR20070100504A GR1006099B (el) 2007-08-02 2007-08-02 Παρασκευη τρισδιαστατων μεταλλικων σπογγων ανοικτου κελιου με την μεθοδο εμποτισμου αφρου πολυουρεθανης και αντιστοιχων συγγενικων υλικων σε παχυρευστο μειγμα κονεως μεταλλου και αλατων

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
GR20070100504 Previously-Filed-Application 2007-08-02

Publications (2)

Publication Number Publication Date
EP2045029A1 true EP2045029A1 (fr) 2009-04-08
EP2045029B1 EP2045029B1 (fr) 2012-02-01

Family

ID=39434283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08386018A Not-in-force EP2045029B1 (fr) 2007-08-02 2008-07-31 Production d'aluminium mousse par l'impregnation de mousse de polyurethane avec boue comprenant aluminium et sel

Country Status (4)

Country Link
EP (1) EP2045029B1 (fr)
AT (1) ATE543595T1 (fr)
ES (1) ES2382639T3 (fr)
GR (1) GR1006099B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106475557A (zh) * 2015-08-26 2017-03-08 精工爱普生株式会社 三维形成装置、三维形成方法以及三维形成物

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190015895A1 (en) * 2016-01-15 2019-01-17 University Of North Texas Method for Producing Textured Porous Metals

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111396A (en) 1960-12-14 1963-11-19 Gen Electric Method of making a porous material
US3322535A (en) * 1965-06-01 1967-05-30 Mallory & Co Inc P R Addition agents for exothermic sintering processes
US4973385A (en) 1990-04-24 1990-11-27 Jean Ming Gwo Vacuum water drawing cylinder for making paper
WO1997031738A1 (fr) 1996-02-27 1997-09-04 Astro Met, Inc. Materiaux poreux et procede de production associe
WO2002066693A1 (fr) * 2001-02-19 2002-08-29 Isotis N.V. Metaux poreux et revetements metalliques pour implants

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111396A (en) 1960-12-14 1963-11-19 Gen Electric Method of making a porous material
US3322535A (en) * 1965-06-01 1967-05-30 Mallory & Co Inc P R Addition agents for exothermic sintering processes
US4973385A (en) 1990-04-24 1990-11-27 Jean Ming Gwo Vacuum water drawing cylinder for making paper
WO1997031738A1 (fr) 1996-02-27 1997-09-04 Astro Met, Inc. Materiaux poreux et procede de production associe
WO2002066693A1 (fr) * 2001-02-19 2002-08-29 Isotis N.V. Metaux poreux et revetements metalliques pour implants

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106475557A (zh) * 2015-08-26 2017-03-08 精工爱普生株式会社 三维形成装置、三维形成方法以及三维形成物

Also Published As

Publication number Publication date
ATE543595T1 (de) 2012-02-15
EP2045029B1 (fr) 2012-02-01
ES2382639T3 (es) 2012-06-12
GR1006099B (el) 2008-10-09

Similar Documents

Publication Publication Date Title
KR101642539B1 (ko) 알루미늄 다공질 소결체를 갖는 알루미늄 복합체의 제조 방법
Mansourighasri et al. Processing titanium foams using tapioca starch as a space holder
Kennedy Porous metals and metal foams made from powders
EP1755809B1 (fr) Procede de production de materiaux metalliques poreux
Azarniya et al. Physicomechanical properties of porous materials by spark plasma sintering
US20150078949A1 (en) Process for producing porous sintered aluminum, and porous sintered aluminum
DE102008000100B4 (de) Verfahren zur Herstellung eines leichtgewichtigen Grünkörpers, danach hergestellter leichtgewichtiger Grünkörper und Verfahren zur Herstellung eines leichtgewichtigen Formkörpers
Stanev et al. Open-cell metallic porous materials obtained through space holders—Part I: Production methods. A review
JP5402381B2 (ja) アルミニウム多孔質焼結体の製造方法
JP5526938B2 (ja) アルミニウム多孔質焼結体の製造方法
EP2050527A1 (fr) Procédé de fabrication de mousse inorganique à cellules ouvertes
JP6165499B2 (ja) 多孔質チタン薄膜の製造方法
JP4219325B2 (ja) 多孔性チタン材料物品の製造方法
Zhou et al. Fabrication and characterization of pure porous Ti3SiC2 with controlled porosity and pore features
JP5526941B2 (ja) アルミニウム多孔質焼結体の製造方法
JP2011214047A (ja) アルミニウム多孔質焼結体の製造方法
EP2045029B1 (fr) Production d'aluminium mousse par l'impregnation de mousse de polyurethane avec boue comprenant aluminium et sel
RU2300444C2 (ru) Способ получения высокопористых сплавов
Golabgir et al. Fabrication of open cell Fe-10% Al foam by space-holder technique
JP3858096B2 (ja) 金属又はセラミックス含有発泡焼結体の製造方法
JP5825311B2 (ja) アルミニウム多孔質焼結体
CN112334254B (zh) 复合材料
Kamyshnaya et al. Study of preparation of prescribed pore configuration in zirconium dioxide ceramic due to carbamide directional solidification
KR20020074851A (ko) 개포형 금속포움 제조방법
Carpenter et al. 3D Printing of Hierarchical Porous Steel and Iron‐Based Materials

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20091002

17Q First examination report despatched

Effective date: 20091112

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

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

Owner name: MICHAILIDIS, NIKOLAOS

Owner name: TSIPAS, DIMITRIOS

Owner name: OMAR, MOHAMAD HIDAR

Owner name: PAPADOPOULOS, DIMITRIOS

Owner name: ARISTOTLE UNIVERSITY OF THESSALONIKI- RESEARCH COM

Owner name: TSIPAS, SOFIA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 543595

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120215

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602008013067

Country of ref document: DE

Effective date: 20120329

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2382639

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20120612

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

REG Reference to a national code

Ref country code: GR

Ref legal event code: EP

Ref document number: 20120401018

Country of ref document: GR

Effective date: 20120614

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20120201

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

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120601

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120501

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120601

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

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

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

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

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

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

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

26N No opposition filed

Effective date: 20121105

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

Ref country code: MC

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

Effective date: 20120731

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602008013067

Country of ref document: DE

Effective date: 20121105

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120501

Ref country code: IE

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

Effective date: 20120731

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

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

Ref country code: NL

Payment date: 20130724

Year of fee payment: 6

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

Ref country code: FR

Payment date: 20130730

Year of fee payment: 6

Ref country code: GB

Payment date: 20130820

Year of fee payment: 6

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

Ref country code: IT

Payment date: 20130712

Year of fee payment: 6

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

Ref country code: CH

Payment date: 20131024

Year of fee payment: 6

Ref country code: BE

Payment date: 20130906

Year of fee payment: 6

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

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

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

Ref country code: LU

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

Effective date: 20120731

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080731

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20150201

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20140731

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

Ref country code: NL

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

Effective date: 20150201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150331

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

Ref country code: LI

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

Effective date: 20140731

Ref country code: CH

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

Effective date: 20140731

Ref country code: IT

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

Effective date: 20140731

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: 20140731

Ref country code: FR

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

Effective date: 20140731

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

Ref country code: BE

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

Effective date: 20140731

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

Ref country code: GR

Payment date: 20170710

Year of fee payment: 10

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

Ref country code: ES

Payment date: 20180124

Year of fee payment: 10

Ref country code: DE

Payment date: 20180116

Year of fee payment: 10

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

Ref country code: AT

Payment date: 20180116

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602008013067

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 543595

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180731

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

Ref country code: AT

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

Effective date: 20180731

Ref country code: DE

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

Effective date: 20190201

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

Ref country code: GR

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

Effective date: 20190207

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20190918

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

Ref country code: ES

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

Effective date: 20180801