EP0795367B1 - Matière argent-fer pour contacts interrupteurs électriques et procédé pour sa fabrication - Google Patents

Matière argent-fer pour contacts interrupteurs électriques et procédé pour sa fabrication Download PDF

Info

Publication number
EP0795367B1
EP0795367B1 EP97101342A EP97101342A EP0795367B1 EP 0795367 B1 EP0795367 B1 EP 0795367B1 EP 97101342 A EP97101342 A EP 97101342A EP 97101342 A EP97101342 A EP 97101342A EP 0795367 B1 EP0795367 B1 EP 0795367B1
Authority
EP
European Patent Office
Prior art keywords
iron
silver
materials
powder
sintered
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.)
Expired - Lifetime
Application number
EP97101342A
Other languages
German (de)
English (en)
Other versions
EP0795367A1 (fr
Inventor
Wolfgang Dr. Weise
Willi Malikowski
Roger Wolmer
Peter Dr. Braumann
Andreas Koffler
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.)
Umicore AG and Co KG
Original Assignee
DMC2 Degussa Metals Catalysts Cerdec AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7786472&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0795367(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by DMC2 Degussa Metals Catalysts Cerdec AG filed Critical DMC2 Degussa Metals Catalysts Cerdec AG
Publication of EP0795367A1 publication Critical patent/EP0795367A1/fr
Application granted granted Critical
Publication of EP0795367B1 publication Critical patent/EP0795367B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/04Making non-ferrous alloys by powder metallurgy
    • C22C1/0466Alloys based on noble metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/09Mixtures of metallic powders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/12Metallic powder containing non-metallic particles
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C32/00Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0084Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ carbon or graphite as the main non-metallic constituent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C5/00Alloys based on noble metals
    • C22C5/06Alloys based on silver
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/02Contacts characterised by the material thereof
    • H01H1/021Composite material
    • H01H1/023Composite material having a noble metal as the basic material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/02Contacts characterised by the material thereof
    • H01H1/021Composite material
    • H01H1/023Composite material having a noble metal as the basic material
    • H01H1/0237Composite material having a noble metal as the basic material and containing oxides
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/02Contacts characterised by the material thereof
    • H01H1/021Composite material
    • H01H1/027Composite material containing carbon particles or fibres
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/048Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by powder-metallurgical processes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00Stock material or miscellaneous articles
    • Y10S428/922Static electricity metal bleed-off metallic stock
    • Y10S428/9265Special properties
    • Y10S428/929Electrical contact feature
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12014All metal or with adjacent metals having metal particles
    • Y10T428/1216Continuous interengaged phases of plural metals, or oriented fiber containing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12014All metal or with adjacent metals having metal particles
    • Y10T428/1216Continuous interengaged phases of plural metals, or oriented fiber containing
    • Y10T428/12167Nonmetal containing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771Transition metal-base component
    • Y10T428/12861Group VIII or IB metal-base component
    • Y10T428/12896Ag-base component
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/28Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2813Heat or solvent activated or sealable

Definitions

  • the invention relates to a sintered silver-iron material with 0.5 to 20 wt.% iron and 0 to 5 wt.% other metallic, oxidic, nitridic and / or carbide additives, balance silver, for electrical contacts and a method of manufacturing this material.
  • Contact materials for use in electrical Energy technology must have high erosion resistance, low Show welding force and low contact resistance.
  • For air-tight switchgear in low-voltage technology has for switching currents of less than 100A Proven silver-nickel composite. He has one high erosion resistance with very good Over temperature behavior.
  • a disadvantage of the material lies however, in that nickel, especially in the form of dust, harmful effects on the human organism may have. As an alternative to nickel is therefore various iron have been proposed.
  • silver-iron materials have so far not found any wider ones Application as they form when switching Cover layers tend and thus lead to high contact heating to lead. None of these materials reach the cheap ones Properties of the silver-nickel sintered materials.
  • one sintered silver-iron material with 0.5 to 20% by weight Iron and 0 to 5% by weight of other metallic, oxidic, nitridic and / or carbidic additives, balance silver for electrical contacts to develop a low Tendency to weld, low contact resistance and high erosion resistance and therefore a long service life has, and with these properties the known Silver-nickel contact materials come as close as possible. It should also include a process for making such Materials are developed.
  • This object is achieved in that the Iron particles in the sintered material Carbon content of more than 0.25% by weight and a Have microhardness of more than 200 HV 0.025.
  • the iron particles should preferably have one Carbon content of more than 0.4% by weight and a Have microhardness of more than 400 HV 0.025.
  • Silver-iron materials have proven to be the best which the iron particles unite in the sintered state Carbon content from 0.6 to 1.2% by weight and a microhardness of more than 600 HV 0.025.
  • These materials are manufactured by mixing Silver powder with 0.5 to 20% by weight iron powder and 0 to 5 % By weight of other metallic, oxidic, nitridic and / or carbide additives, cold isostatic pressing, Sintering at 650 to 940 ° C under protective gas and Extrusion, using an iron powder, the contains more than 0.25% by weight of carbon, and the sintering in in a hydrogen-free protective gas atmosphere.
  • the silver-iron material according to the invention shows in terms of lifespan and other Properties practically the same behavior as silver-nickel materials.
  • the silver-iron materials can contain 0 to 5% by weight.
  • metallic additives such as zinc, copper, manganese, rhenium, Iridium and ruthenium, or non-metallic additives such as Tungsten oxide, molybdenum oxide, iron oxides, magnesium oxide, Calcium oxide, yttrium oxide, tantalum oxide, chromium oxide, Manganese oxide, zinc oxide, aluminum oxide, indium oxide, Silicon oxide and zirconium oxide can be added.
  • the inventive Process materials better too.
  • the cause is in that the iron is inside during extrusion the silver matrix is distributed significantly finer and that the iron is not too elongated due to the brittleness Iron lines deformed, as in the well-known silver-iron materials.
  • the materials are economical manufacture and are in all switching properties with the Silver-nickel material comparable, especially the Overtemperature and service life show values that too Achieve silver-nickel materials.
  • AgNi20 90 110,000 2 AgFe8.5Zn1.5 116 95,000 3rd AgFe8 130 95,000 4th AgFe8Re5 95 90,000 5 AgFe6MgO0.5 95 90,000 6 AgFe8.5Zn1.5 110 110,000 7 AgFe6 110 110,000 8th AgFe6Re0.5 80 100,000 9 AgFe4MgO0.5 80 105,000 10 AgFe4 80 100,000 11 AgFe10 120 125,000 12th AgFe8Al2O30.5 95 110,000 13 AgFe8SnO20.5 90 110,000 14 AgFe8SiO20.5 90 115,000 15 AgFe8Ir0.5 95 125,000 16 AgFe8Ru0.5 90 115,000
  • the wires can always be used as contact pieces process further.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Contacts (AREA)

Claims (4)

  1. Matériau fritté argent-fer ayant de 0,5 à 20 % en poids de fer et de 0 à 5 % en poids d'autres additions métalliques, oxydiques, nitridiques, et/ou carbidiques, le reste étant de l'argent, pour des contacts électriques,
    caractérisé en ce que
    les particules de fer dans le matériau fritté possèdent une teneur en carbone de plus de 0,25 % en poids et une microdureté de plus de 200 HV 0,025.
  2. Matériau argent-fer selon la revendication 1,
    caractérisé en ce que
    les particules de fer dans le matériau possèdent une teneur en carbone de plus de 0,4 % en poids et une microdureté de plus de 400 HV 0,025.
  3. Matériau argent-fer selon la revendication 1 et la revendication 2,
    caractérisé en ce que
    les particules de fer dans le matériau possèdent une teneur en carbone allant de 0,6 à 1,2 % en poids et une microdureté de plus de 600 HV 0,025.
  4. Procédé de production de matériaux argent-fer selon les revendications 1 à 3, par mélange de poudre d'argent avec 0,5 à 20 % en poids de poudre de fer et de 0 à 5 % en poids d'autres additions métalliques, oxydiques, nitridiques et/ou carbidiques, par pressage isostatique à froid et par frittage de 650 à 940°C et extrusion,
    caractérisé en ce que
    la poudre de fer renferme plus de 0,25 % en poids de carbone et le frittage est effectué dans une atmosphère de gaz protecteur dépourvu d'hydrogène.
EP97101342A 1996-02-27 1997-01-29 Matière argent-fer pour contacts interrupteurs électriques et procédé pour sa fabrication Expired - Lifetime EP0795367B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19607183A DE19607183C1 (de) 1996-02-27 1996-02-27 Gesinterter Silber-Eisen-Werkstoff für elektrische Kontakte und Verfahren zu seiner Herstellung
DE19607183 1996-02-27

Publications (2)

Publication Number Publication Date
EP0795367A1 EP0795367A1 (fr) 1997-09-17
EP0795367B1 true EP0795367B1 (fr) 2001-06-20

Family

ID=7786472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97101342A Expired - Lifetime EP0795367B1 (fr) 1996-02-27 1997-01-29 Matière argent-fer pour contacts interrupteurs électriques et procédé pour sa fabrication

Country Status (6)

Country Link
US (1) US5985440A (fr)
EP (1) EP0795367B1 (fr)
JP (1) JPH09235634A (fr)
CN (1) CN1080766C (fr)
DE (2) DE19607183C1 (fr)
ES (1) ES2160270T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010014745A1 (de) * 2010-01-15 2011-07-21 Tyco Electronics AMP GmbH, 64625 Elektrisches Kontaktelement und Verfahren zur Herstellung eines elektrischen Kontaktelements

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19934537C1 (de) * 1999-07-22 2001-07-12 Klaus Bruchmann Schutzvorrichtung für einen Kontakt eines Sicherungseinsatzes
DE10012250B4 (de) * 2000-03-14 2006-06-01 Umicore Ag & Co. Kg Kontaktwerkstoffe auf Basis Silber-Eisen-Kupfer
US9018552B2 (en) * 2011-11-04 2015-04-28 Taiwan Electric Contacts Corp. Electrical contact including stainless steel material
EP2644723B1 (fr) * 2012-03-26 2017-01-18 Umicore AG & Co. KG Matière active composite
CN103014402B (zh) * 2012-12-21 2017-05-31 重庆川仪自动化股份有限公司 高熔点合金元素增强滑动电接触合金及其层状复合材料
CN105359241A (zh) * 2013-06-24 2016-02-24 三菱电机株式会社 电触点材料及其制造方法
CN105463235A (zh) * 2015-12-23 2016-04-06 四川飞龙电子材料有限公司 一种银铁铼电接触材料的制备方法
CN107675017B (zh) * 2017-08-04 2020-03-31 福达合金材料股份有限公司 一种银铁镍电触头材料及其制备方法
CN108054031B (zh) * 2017-09-11 2019-10-25 大连大学 一种片状铁成网状分布强化的银基电触头材料
CN108823451A (zh) * 2018-07-24 2018-11-16 深圳市中科睿金贵材科技有限公司 一种银-金-碳合金的制备方法
CN112981213A (zh) * 2021-02-03 2021-06-18 中国科学院金属研究所 一种银铁复合材料及其制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1106965B (de) * 1957-02-12 1961-05-18 Siemens Ag Verfahren zur Herstellung dicht gesinterter Formkoerper aus Silberverbundwerkstoff
DE1153178B (de) * 1959-08-01 1963-08-22 Duerrwaechter E Dr Doduco Verwendung eines verformbaren Silber-Metalloxyd-Werkstoffes fuer elektrische Kontakte
US3708283A (en) * 1971-01-19 1973-01-02 Parker Pen Co Process for preparing cemented ferrochrome
DE3213265A1 (de) * 1981-04-10 1982-11-18 Sumitomo Electric Industries, Ltd., Osaka Elektrisches kontaktmaterial
US4752334A (en) * 1983-12-13 1988-06-21 Scm Metal Products Inc. Dispersion strengthened metal composites
US4937041A (en) * 1984-03-23 1990-06-26 Carlisle Memory Products Group Incorporated Stainless steel silver compositions
YU46258B (sh) * 1987-06-06 1993-05-28 Degussa Ag. Primena srebrno gvozdenog materijala za električne kontakte
DE4117312A1 (de) * 1991-05-27 1992-12-03 Siemens Ag Kontaktwerkstoff auf silberbasis zur verwendung in schaltgeraeten der energietechnik sowie verfahren zur herstellung von kontaktstuecken aus diesem werkstoff

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010014745A1 (de) * 2010-01-15 2011-07-21 Tyco Electronics AMP GmbH, 64625 Elektrisches Kontaktelement und Verfahren zur Herstellung eines elektrischen Kontaktelements
DE102010014745B4 (de) * 2010-01-15 2011-09-22 Tyco Electronics Amp Gmbh Elektrisches Kontaktelement und Verfahren zur Herstellung eines elektrischen Kontaktelements

Also Published As

Publication number Publication date
US5985440A (en) 1999-11-16
JPH09235634A (ja) 1997-09-09
DE59703840D1 (de) 2001-07-26
ES2160270T3 (es) 2001-11-01
CN1080766C (zh) 2002-03-13
EP0795367A1 (fr) 1997-09-17
CN1161380A (zh) 1997-10-08
DE19607183C1 (de) 1997-04-10

Similar Documents

Publication Publication Date Title
DE2659012C3 (de) Verfahren zum Herstellen eines Sinterkontaktwerkstoffes aus Silber und eingelagerten Metalloxiden
EP0294693B1 (fr) Utilisation d'une matière argent-fer pour contacts électriques
EP0795367B1 (fr) Matière argent-fer pour contacts interrupteurs électriques et procédé pour sa fabrication
DE69124933T2 (de) Kontaktmaterial für Vakuumschalter
EP0170812B1 (fr) Procédé pour la fabrication de matériau de contact fritté
EP0774529B1 (fr) Matériau argent-fer pour contacts de commutateurs électriques
EP0586410B1 (fr) Materiau de contact a base d'argent pour l'utilisation dans des appareils de commutation en technologie des courants forts, ainsi que procede pour la fabrication de pieces de contact en ce materiau
EP0152606B1 (fr) Matériau de contact et procédé de préparation de pièces de contact
DE2011002A1 (de) Silber Metalloxid Werkstoff zur Ver wendung bei Kontaktstucken und Verfahren zu seiner Herstellung
EP0725154B1 (fr) Matière frittée pour contacts électriques à base d'oxyde d'étain et son procédé de fabrication
EP0586411B1 (fr) Materiau de contact a base d'argent pour l'utilisation dans des appareils de commutation en technologie des courants forts, ainsi que procede pour la fabrication de pieces de contact en ce materiau
WO1989010417A1 (fr) Materiau fritte de contact a base d'argent utilise dans des appareils commutateurs d'energie, notamment des plots de contact de commutateurs a basse tension
EP0774523B1 (fr) Matière agent-fer pour contacts interrupteurs électriques
DE3816895C2 (fr)
DE3336696A1 (de) Verbesserte vakuumtrennerkontakte
DE19543208C1 (de) Silber-Eisen-Werkstoff für elektrische Schaltkontakte (II)
EP0311134B1 (fr) Matériau pour contacts électriques constitué par de l'argent et du graphite, fabriqué par la métallurgie des poudres procédé pour sa fabrication
DE1270196B (de) Verwendung von Titancarbid fuer einen elektrischen Kontakt und damit hergestellter Kontakt
EP1043409B1 (fr) Matériau composite préparé par métallurgie des poudres
DE3116442C2 (de) Sinterkontaktwerkstoff
DE3421759A1 (de) Sinterkontaktwerkstoff fuer niederspannungsschaltgeraete der energietechnik
EP0448757A1 (fr) Matériel de contact en argent
DE10012250B4 (de) Kontaktwerkstoffe auf Basis Silber-Eisen-Kupfer
DE19608490C1 (de) Kontaktwerkstoff aus Silber und Wirkkomponenten, daraus gefertigtes Formstück sowie Verfahren zur Herstellung des Formstücks
DE19503183A1 (de) Werkstoff aus Silber-Eisen für elektrische Kontakte und Verfahren zu seiner Herstellung

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): DE ES FR GB IT

17P Request for examination filed

Effective date: 19980316

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

Owner name: DEGUSSA-HUELS AKTIENGESELLSCHAFT

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DEGUSSA-HUELS AKTIENGESELLSCHAFT

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20000831

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

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

Owner name: DMC2 DEGUSSA METALS CATALYSTS CERDEC AG

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

REF Corresponds to:

Ref document number: 59703840

Country of ref document: DE

Date of ref document: 20010726

ITF It: translation for a ep patent filed

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

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

Effective date: 20010907

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2160270

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

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

Owner name: OMG AG & CO. KG

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: AMI DODUCO GMBH

Effective date: 20020211

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

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

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 20031106

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

Ref country code: FR

Payment date: 20060113

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: 20060130

Year of fee payment: 10

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

Ref country code: IT

Payment date: 20060131

Year of fee payment: 10

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

Effective date: 20070129

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20070930

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: 20070129

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20070130

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: 20070131

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: 20070130

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

Ref country code: GB

Payment date: 20060120

Year of fee payment: 10

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: 20070129

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

Ref country code: DE

Payment date: 20160127

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59703840

Country of ref document: DE