EP0917499A2 - Procede de production d'ebauches de noyaux et de sable a noyaux de recyclage pour la fonderie - Google Patents

Procede de production d'ebauches de noyaux et de sable a noyaux de recyclage pour la fonderie

Info

Publication number
EP0917499A2
EP0917499A2 EP97934549A EP97934549A EP0917499A2 EP 0917499 A2 EP0917499 A2 EP 0917499A2 EP 97934549 A EP97934549 A EP 97934549A EP 97934549 A EP97934549 A EP 97934549A EP 0917499 A2 EP0917499 A2 EP 0917499A2
Authority
EP
European Patent Office
Prior art keywords
core
sand
binder
core box
mixture
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
EP97934549A
Other languages
German (de)
English (en)
Other versions
EP0917499B1 (fr
Inventor
Thomas Steinhäuser
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.)
Vaw Aluminium AG
Original Assignee
VAW Motor 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 VAW Motor GmbH filed Critical VAW Motor GmbH
Publication of EP0917499A2 publication Critical patent/EP0917499A2/fr
Application granted granted Critical
Publication of EP0917499B1 publication Critical patent/EP0917499B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/18—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of inorganic agents
    • B22C1/186—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of inorganic agents contaming ammonium or metal silicates, silica sols
    • B22C1/188—Alkali metal silicates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/12—Treating moulds or cores, e.g. drying, hardening

Definitions

  • the invention relates to a process for the production of core moldings for foundry technology, a mixture of an inorganic, refractory molding sand and an inorganic binder based on water glass being produced, the mixture being poured into a temperature-controlled core box, the water contained in the mixture being removed physically and the core preform is removed from the core box and a process for producing circulating core sand.
  • test samples consisted of a compressed sand-sodium silicate mixture.
  • a vacuum in the range of 0.5 to 3 mm Hg was applied to dry the test samples and held until 10 to 30% of the moisture could be removed from the binder.
  • the only non-organic binder material mentioned in the article by Cole is a sodium silicate binder, which, however, is either mixed with complex ester hardeners or is subjected to a "chemical drying process" by "usual" C0 2 gassing systems.
  • ester compounds are not recommended because of the environmental problems mentioned above.
  • Fig. 3.28 shows on page 83 the course of the secondary strength for C0 2 tempered water glass molding materials depending on the casting temperature.
  • This process which has developed into the standard process for conventional and modified binder solutions in the past 30 years, leads to water glass-bonded molding materials with the high-temperature behavior shown in Fig.3.28, which is characterized by an increased tendency to sinter and by an inadequate disintegration ability of the molding material after casting .
  • melting phases occur, which form new bonds with the basic molding material during the subsequent cooling.
  • a reduction in the secondary strength achieved can be achieved by the following measures according to "Manual" on page 84:
  • Fig. 7 Comparison of gas volume formation with sand, AWB and CB products.
  • FIG. 1 contains a comparison of the representation of different molding material binder systems under constantly defined conditions.
  • the mold storage time is designated 0 minutes, i. H. the molding material is processed to form immediately after mixing.
  • the core storage time is 60 minutes, i. H. the shaping is stored for the specified time after the shaping and then broken.
  • the product according to the invention was produced in a rocking mixer with a mixing time of 50 seconds from 5 kg of molding sand H32 with 2.5% binder and processed on a H 2.5 core shooter.
  • the tool temperature was 150 ° C.
  • the compression was carried out at 2.5 bar overpressure and a residence time in the tool of 8 seconds, the gases produced being sucked off at a flow rate of 4 m 3 / h before the tool was opened.
  • the core molding was placed in the Microwave (600 watts) dried for 120 seconds.
  • FIG. 1 shows the associated bending strengths with a thinly hatched column with a molding material storage time of 0 min and a core storage time of 60 min.
  • a comparative product was produced with the Resol-C0 2 process and with 2.7% binder type.
  • the mixing time was 70 seconds, the compression was carried out under negative pressure at -0.8 bar.
  • the comparison product was then cured in a CO 2 atmosphere at 1 bar for 8.5 seconds.
  • the results are compared in FIG. 1 as "C0 2 " column with the same molding material storage times of 0 and core storage times of 60 minutes compared to the data according to the invention.
  • CB1, CB2, CB3 Cold Box
  • S0 2 -gassed sand system with 1% EPOXY / 0.25% resin and oxidizer has been manufactured and tested.
  • the bending strengths of the core moldings according to the invention have significantly better values than the SO 2 and CO 2 hardened moldings if the cores are removed from the mold immediately without storage.
  • FIG. 5 the illustration according to FIG. 4 is supplemented by different molding material storage times. Neither figure shows the comparison of regenerates with different core storage times because the comparison methods only allow the molded articles to be stable after the organic constituents have been removed.
  • the comparison of the bending strength of the core molding according to the invention shown in FIG. 5 with different core storage times shows that the increase in strength is less clear in the product according to the invention than in the comparison products.
  • FIG. 2 shows the curve of the bending strength as a function of the molding material storage time (FLZ) and the core storage time (KLZ).
  • FLZ molding material storage time
  • KLZ core storage time
  • Figure 3 contains a representation of the bending strength depending on the molding material storage time (FLZ) and the core storage time (KLZ) of the AWB process. 2.5% binder
  • Compression combines 2.5 bar overpressure and -0.6 bar underpressure
  • FIG. 5 shows the bending strength as a function of the core storage time (KLZ) in comparison to other molding material systems. 2.5% binder AWB process
  • the mold storage time is designated 0 minutes, i. H. the molding material is processed to form immediately after mixing.
  • the core storage time is designated 0 minutes, i. H. the shaping is broken immediately after shaping.
  • FIG. 7 shows the comparison of the gas volume formation of cold box and AWB moldings under thermal stress.
  • System parameters oven temperature 770 ° C molding material weight 2g
  • the gas volume is displayed system-adjusted, ie the dead volume is taken into account by calculation.
  • Test duration 7.5 minutes under thermal stress.
  • the sand systems were manufactured on the basis of H 32 new sand. For a separate comparison, a sample of unpolluted H 32 new sand was inserted for comparison.
  • AWB 2.5% stone houses / water extraction-hardening water glass binder
  • the samples were stored under common room conditions for 24 hours before the experiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

L'invention concerne un procédé de production d'ébauches de noyaux pour la fonderie, consistant a) à réaliser un mélange à partir de sable de moulage inorganique réfractaire et d'un liant inorganique à base de verre soluble; b) à verser le mélange dans une boîte à noyaux thermorégulée; c) à retirer l'eau contenue dans le mélange par voie physique et d) à retirer l'ébauche de la boîte à noyaux. Ledit procédé est caractérisé en ce que e) le vide est réalisé dans la boîte à noyaux thermorégulée pendant le remplissage; f) la température et/ou le temps de séjour après fermeture de la boîte à noyaux sont réglés de sorte qu'une coque, indéformable et solide, se forme en bordure de l'ébauche de noyau; g) l'ébauche est extraite immédiatement après l'ouverture de la boîte à noyaux et soumise à un séchage complet sous l'action de micro-ondes.
EP97934549A 1996-08-09 1997-07-26 Procede de production d'ebauches de noyaux et de sable a noyaux de recyclage pour la fonderie Expired - Lifetime EP0917499B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19632293 1996-08-09
DE19632293A DE19632293C2 (de) 1996-08-09 1996-08-09 Verfahren zur Herstellung von Kernformlingen für die Gießereitechnik
PCT/EP1997/004072 WO1998006522A2 (fr) 1996-08-09 1997-07-26 Procede de production d'ebauches de noyaux et de sable a noyaux de recyclage pour la fonderie

Publications (2)

Publication Number Publication Date
EP0917499A2 true EP0917499A2 (fr) 1999-05-26
EP0917499B1 EP0917499B1 (fr) 2000-11-22

Family

ID=7802305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97934549A Expired - Lifetime EP0917499B1 (fr) 1996-08-09 1997-07-26 Procede de production d'ebauches de noyaux et de sable a noyaux de recyclage pour la fonderie

Country Status (7)

Country Link
EP (1) EP0917499B1 (fr)
AT (1) ATE197683T1 (fr)
DE (2) DE19632293C2 (fr)
DK (1) DK0917499T3 (fr)
ES (1) ES2153677T3 (fr)
HU (1) HU222658B1 (fr)
WO (1) WO1998006522A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003024642A1 (fr) * 2001-09-14 2003-03-27 Hydro Aluminium Deutschland Gmbh Procede de realisation de pieces moulees, sable de coulee, et son utilisation pour la mise en oeuvre du procede
EP2163328A1 (fr) 2008-09-05 2010-03-17 Minelco GmbH Sable de noyau ou de moule revêtu par et/ou mélangés avec des silicates de potassium ayant une teneur en eau comprise entre environ 0,25 poids -% jusqu'à environ 0,9 poids -%
EP2537926A1 (fr) 2011-06-21 2012-12-26 Isobionics B.V. Valencène synthase

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29925010U1 (de) * 1999-10-26 2008-09-04 Mincelco Gmbh Wasserglasgebundener Kernformstoff
WO2003013761A1 (fr) * 2001-08-10 2003-02-20 Dipl.-Ing. Laempe Gmbh Procede et dispositif de production de moules ou de noyaux utilises en fonderie
DE10200927A1 (de) * 2001-08-10 2003-03-06 Laempe Joachim Verfahren und Vorrichtung zur Herstellung von Formen oder Kernen für Giessereizwecke
DE10144193C1 (de) * 2001-09-08 2002-10-31 Vaw Mandl & Berger Gmbh Linz Verfahren und Formschießmaschine zum Herstellen von Formteilen, wie Gießkernen, für Gießformen zum Vergießen von Metallschmelze
DE10144391C1 (de) * 2001-09-10 2002-10-17 Vaw Mandl & Berger Gmbh Linz Verfahren und Formschießmaschine zum Herstellen von Formteilen, wie Gießkernen, für Gießformen zum Vergießen von Metallschmelze
DE10209183A1 (de) * 2002-03-04 2003-10-02 Vaw Mandl & Berger Gmbh Linz Formstoff für die Herstellung von Gießformteilen
DE10209224A1 (de) * 2002-03-04 2003-10-09 Vaw Mandl & Berger Gmbh Linz Verfahren zum Herstellen von Gußstücken
DE10216464B4 (de) * 2002-04-12 2004-04-15 Deutsches Zentrum für Luft- und Raumfahrt e.V. Silica gebundene Kernwerkstoffe, Verfahren zu deren Herstellung und deren Verwendung
DE102004042535B4 (de) 2004-09-02 2019-05-29 Ask Chemicals Gmbh Formstoffmischung zur Herstellung von Gießformen für die Metallverarbeitung, Verfahren und Verwendung
DE102006003198A1 (de) * 2006-01-24 2007-07-26 Deutsches Zentrum für Luft- und Raumfahrt e.V. Kerne für den Leichtmetall- und/oder den Feinguss
DE102006061876A1 (de) 2006-12-28 2008-07-03 Ashland-Südchemie-Kernfest GmbH Kohlenhydrathaltige Formstoffmischung
CA2666760C (fr) 2006-10-19 2014-10-28 Jens Mueller Melange de matieres de moulage a base d'hydrates de carbone
DE102006049379A1 (de) 2006-10-19 2008-04-24 Ashland-Südchemie-Kernfest GmbH Phosphorhaltige Formstoffmischung zur Herstellung von Giessformen für die Metallverarbeitung
DE102007051850A1 (de) 2007-10-30 2009-05-07 Ashland-Südchemie-Kernfest GmbH Formstoffmischung mit verbesserter Fliessfähigkeit
DE102008041217A1 (de) * 2008-08-13 2010-02-18 Volkswagen Ag Formstoffbinder für schüttbare Formmassen und Verfahren zum Herstellen von Kerneinsätzen für Gussformen
DE102015106126A1 (de) 2015-04-21 2016-10-27 Nemak, S.A.B. De C.V. Kernkasten zum Herstellen von Gießkernen
RU2763701C1 (ru) * 2021-06-22 2021-12-30 федеральное государственное бюджетное образовательное учреждение высшего образования "Нижегородский государственный технический университет им. Р.Е. Алексеева" (НГТУ) Способ изготовления литейных стержней и форм

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB952788A (en) * 1962-02-15 1964-03-18 Foseco Int Moulds, cores and the like suitable for foundry and like purposes
US4226277A (en) * 1978-06-29 1980-10-07 Ralph Matalon Novel method of making foundry molds and adhesively bonded composites
WO1986000033A1 (fr) * 1984-06-12 1986-01-03 MIKROVA^oGSAPPLIKATION AB Procede et installation de fabrication de noyaux
JPS6167539A (ja) * 1984-09-12 1986-04-07 Mitsubishi Heavy Ind Ltd 塗型材の乾燥方法
NL8820936A (nl) * 1987-12-08 1990-10-01 Harri Sahari Werkwijze voor het vervaardigen van vormen en kernen, gebruikt bij het gieten van metalen.
JPH01215433A (ja) * 1988-02-19 1989-08-29 Mitsubishi Motors Corp 高圧鋳造用中子の製造方法
US4960162A (en) * 1989-02-17 1990-10-02 Esco Corporation Method of reclaiming foundry sand

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9806522A2 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003024642A1 (fr) * 2001-09-14 2003-03-27 Hydro Aluminium Deutschland Gmbh Procede de realisation de pieces moulees, sable de coulee, et son utilisation pour la mise en oeuvre du procede
EP2163328A1 (fr) 2008-09-05 2010-03-17 Minelco GmbH Sable de noyau ou de moule revêtu par et/ou mélangés avec des silicates de potassium ayant une teneur en eau comprise entre environ 0,25 poids -% jusqu'à environ 0,9 poids -%
US8627877B2 (en) 2008-09-05 2014-01-14 Minelco Gmbh Core or foundry sand coated and/or mixed with water glass with a water content in the range of ≧ approximately 0.25% by weight to approximately 0.9% by weight
EP2537926A1 (fr) 2011-06-21 2012-12-26 Isobionics B.V. Valencène synthase

Also Published As

Publication number Publication date
HUP0001766A3 (en) 2000-11-28
DE19632293A1 (de) 1998-02-19
DK0917499T3 (da) 2001-02-12
DE59702665D1 (de) 2000-12-28
ATE197683T1 (de) 2000-12-15
DE19632293C2 (de) 1999-06-10
HUP0001766A2 (hu) 2000-09-28
ES2153677T3 (es) 2001-03-01
HU222658B1 (hu) 2003-09-29
EP0917499B1 (fr) 2000-11-22
WO1998006522A2 (fr) 1998-02-19
WO1998006522A3 (fr) 1998-06-04

Similar Documents

Publication Publication Date Title
EP0917499B1 (fr) Procede de production d'ebauches de noyaux et de sable a noyaux de recyclage pour la fonderie
DE3221357A1 (de) Verfahren zur herstellung von formen und kernen fuer giesszwecke
DE69725315T2 (de) Verfahren zur herstellung von speisern und anderen beschickungs- und zuführungs-elementen für giessformen und zusammensetzung zur herstellung der speiser und elemente
DE102006056093B4 (de) Kernwerkstoff aus Aerogelsand enthaltend Additivsand und dessen Verwendung
EP1697273B1 (fr) Production d'aerogels contenant une charge
DE2157845A1 (de) Verfahren zur Herstellung von feuer festen Gegenstanden und feuerfeste Matenalmischung
DE1238622B (de) Formmasse fuer Schalenformen zum Vergiessen von Metallen
DE102007008104A1 (de) Verfahren zur Regeneration von Gießereisanden
EP2308614A1 (fr) Aérosand résistant au vert
US6371194B1 (en) Method for producing core preforms and recycling core sand for a foundry
EP2853320A1 (fr) Moule ou noyau de moule en sable de moulage revêtu pour coulée métallique
EP2941327B1 (fr) Procede de fabrication d'un sable pour noyaux et ou moules de fonderie
DE60219471T2 (de) Verbessertes verfahren zur herstellung von platten aus einer marmor-haltigen zusammensetzung
EP1682291B1 (fr) Aerogels contenant une matiere de charge
DE1646585A1 (de) Verfahren zur Herstellung von zur Verarbeitung keramischer Massen dienenden Formen
DE3704726C2 (fr)
EP1752235A1 (fr) Matière pour noyau de coulée
DE102004027382B4 (de) Thermisch zersetzbare Kohlenstoff-Aerogelsande
DE10216403A1 (de) Aerogelgebundene Formstoffe mit hoher Wärmeleitfähigkeit
DE2936485A1 (de) Verfahren zur herstellung eines selbst feuerunterdrueckenden, leichtgewichtigen, zusammengesetzten materials
DE102008041217A1 (de) Formstoffbinder für schüttbare Formmassen und Verfahren zum Herstellen von Kerneinsätzen für Gussformen
DE3709374A1 (de) Poren-leichtbeton
DE3600956A1 (de) Verfahren zur herstellung von giessereikernen
DE2632880A1 (de) Organisch gebundene isolierkoerper fuer die erstarrungslenkung von metallen
DE10131361A1 (de) Verfahren zur Herstellung von Porenbeton

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: 19990121

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE DK ES FR GB IE IT LI NL SE

17Q First examination report despatched

Effective date: 19991119

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

Owner name: VAW ALUMINIUM AG

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

Owner name: VAW ALUMINIUM AG

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE DK ES FR GB IE IT LI NL SE

REF Corresponds to:

Ref document number: 197683

Country of ref document: AT

Date of ref document: 20001215

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: URS WEGMANN DIPL.-ING. ETH

Ref country code: CH

Ref legal event code: EP

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

REF Corresponds to:

Ref document number: 59702665

Country of ref document: DE

Date of ref document: 20001228

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20010111

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2153677

Country of ref document: ES

Kind code of ref document: T3

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

Ref country code: IE

Payment date: 20010727

Year of fee payment: 5

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: IE

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

Effective date: 20020726

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

Ref country code: CH

Payment date: 20020910

Year of fee payment: 6

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: LI

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

Effective date: 20030731

Ref country code: CH

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

Effective date: 20030731

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Ref country code: FR

Ref legal event code: CD

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20101118 AND 20101124

REG Reference to a national code

Ref country code: NL

Ref legal event code: TD

Effective date: 20110330

Ref country code: NL

Ref legal event code: SD

Effective date: 20110330

REG Reference to a national code

Ref country code: AT

Ref legal event code: PC

Ref document number: 197683

Country of ref document: AT

Kind code of ref document: T

Owner name: MINELCO GMBH, DE

Effective date: 20120917

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

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

Ref country code: NL

Payment date: 20150703

Year of fee payment: 19

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

Ref country code: DK

Payment date: 20150727

Year of fee payment: 19

Ref country code: ES

Payment date: 20150723

Year of fee payment: 19

Ref country code: GB

Payment date: 20150724

Year of fee payment: 19

Ref country code: DE

Payment date: 20150521

Year of fee payment: 19

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

Ref country code: FR

Payment date: 20150703

Year of fee payment: 19

Ref country code: SE

Payment date: 20150724

Year of fee payment: 19

Ref country code: AT

Payment date: 20150703

Year of fee payment: 19

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

Ref country code: IT

Payment date: 20150728

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59702665

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20170131

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20160801

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 197683

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160726

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

Effective date: 20160726

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

Ref country code: FR

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

Effective date: 20160801

Ref country code: NL

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

Effective date: 20160801

Ref country code: DE

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

Effective date: 20170201

Ref country code: SE

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

Effective date: 20160727

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170331

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: 20160726

Ref country code: GB

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

Effective date: 20160726

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: 20160726

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

Ref country code: DK

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

Effective date: 20160731

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20180507

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: 20160727