EP0660882A1 - Verfahren zur herstellung dünner bleche, geeignet für die anfertigung von dosenteilen - Google Patents
Verfahren zur herstellung dünner bleche, geeignet für die anfertigung von dosenteilenInfo
- Publication number
- EP0660882A1 EP0660882A1 EP94922899A EP94922899A EP0660882A1 EP 0660882 A1 EP0660882 A1 EP 0660882A1 EP 94922899 A EP94922899 A EP 94922899A EP 94922899 A EP94922899 A EP 94922899A EP 0660882 A1 EP0660882 A1 EP 0660882A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- less
- sheet
- strip
- alloy
- heat treatment
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
Definitions
- the present invention relates to a manufacturing process by continuous casting between cylinders of a thin sheet of aluminum alloy suitable for making components of beverage or food use cans.
- lids intended to be associated in a sealed manner with bodies of boxes and thus to constitute packaging for food in liquid or solid state.
- said sheets In order to be able to lend themselves to these mechanical operations as well as to the constraints resulting from the manipulations and the pressures exerted inside the boxes by certain foods such as carbonated drinks, said sheets must have both a suitable capacity for deformation and a sufficient elastic limit.
- German document DE 3247698 (Alusuisse) teaches a process for manufacturing a strip intended for the manufacture of lids of aluminum alloy boxes from a continuous casting machine characterized in that an alloy containing weight 0.15 to 0.50% of Si, / 0861
- the document JP 04276047 (Sky Aluminum) describes a process for obtaining hard sheets of aluminum alloy with a view to making can lids, a process comprising casting in a thin strip at a thickness of less than 15 mm, with a speed cooling above 50 ° C / sec; the sheet obtained is subjected immediately or after cold rolling to a first intermediate annealing, to cold rolling with a reduction rate of 30 to 85%, to the second intermediate annealing and finally to final cold rolling with a higher reduction rate at 30%, the latter being able to be followed by a final annealing.
- the alloy has the following composition:
- Mg 1.2 to 3%
- Cu 0.05 to 0.5%
- Mn 0.5 to 2%
- Fe 0.1 to 0.7%
- Si 0.1 to 0.5%
- the balance being Al.
- the document EP 99739 (Continental) describes a process for obtaining a strip of Al alloy suitable for drawing and stretching, for example with a view to obtaining boxes. It includes the continuous casting of a strip of thickness less than 2.54 cm, preferably between 6 and 12 mm, heating to 510-620 °, followed by cold rolling with thickness reduction of at least 25%, annealing, a second cold rolling with thickness reduction of at least 10%, a recrystallization heating and a final cold rolling.
- Strips 12.1 mm thick and of different compositions were obtained and treated according to the method described; the final products obtained have the following characteristics (tab. XIX)
- the breaking strength obtained is 272 MPa, the elastic limit of 245 MPa and the elongation of 4.1%.
- the object of the invention is, with at least equal properties, to reduce the rolling rate and to eliminate the intermediate annealing steps during cold rolling, which simplifies the process and makes it more economic.
- the invention consists of a process for manufacturing an aluminum alloy sheet intended for housing which has the composition by weight: Mg of between 1 and 4%, Mn of between 0 and 1.6%, balance Al with its unavoidable impurities and optionally additions of Cu and / or Cr, characterized in that said sheet is obtained by casting said alloy in the liquid state between two cylinders in the form of a strip having a thickness at most equal to 4 mm, followed by at least one heat treatment at a temperature between 400 and 580 ° C so that the sheet is at least partially recrystallized, by cold rolling to a final thickness of less than 0.3 mm and optionally a coating operation.
- the subject of the invention is a process first characterized by the casting of a strip between two cylinders with a thickness less than or equal to 4 mm so that, to reach the thickness of a can lid to be manufactured , the rolling rate is less than 95%; this avoids the need for intermediate annealing between the rolling passes, which is the case as soon as the thickness is greater than 4 mm, as has been seen above.
- casting between cylinders is understood to mean a continuous casting of strips into which the liquid metal is introduced, using a refractory nozzle, between two cooled cylinders, in the interval between which it solidifies.
- This invention is made possible by the use of the specific concentration ranges, cited above, of the various elements of the alloy constituting the sheet; it provides properties improved, in particular increased mechanical characteristics.
- Another characteristic of the invention is the obtaining of a recrystallized structure, partially (for example greater than about 50%) or completely, after heat treatment between 400 and 580 ° C of the strip from the casting. This recrystallization of the metal is necessary to obtain excellent formability of the alloy.
- This operation can be carried out batchwise on the wound strip or in the process either on the strip continuously emerging from the casting machine, or on a strip previously wound after casting.
- the duration of the heat treatment and the temperature depend on the rate of temperature rise.
- the heating rate is generally between 20 and 200 ° C / h.
- the heating rate is at least 3000 ° C / h.
- the parade treatment also offers particular advantages for alloys containing less than about 0.75% of Mn. Indeed, it leads to a recrystallization with fine and isotropic grains of dimensions less than 40 micrometers while the batch annealing gives grains of dimensions between 200 and 50 micrometers; this has the effect of improving the formability of the sheet.
- Processing the parade is preferably obtained by heating in an induction furnace or in a hot air circulating oven 'but any other band parade processing means may be envisaged.
- the strip After heat treatment, the strip is cold rolled to the final thickness and the sheet obtained can be covered with a plastic material intended to protect it from the environment. It can be, for example, a varnishing on both sides with a varnish which is then dried by heating at a temperature between 200 and 280 ° C.
- alloys must contain between 1.0 and 4% of magnesium by weight because beyond the maximum claimed, there may be segregation which adversely affects formability; on the other hand, a content of less than 1% leads to insufficient mechanical strength.
- This magnesium is preferably combined with manganese in a weight proportion of up to 1.6%.
- a content higher than the maximum value prevents suitable recrystallization during annealing and causes the appearance of large grains detrimental to the mechanical properties.
- the magnesium content is less than 3.2% but, the best results are obtained for an Mg content less than 2.8%; in fact, the risks of segregation are thus reduced, during casting, associated with the high Mg contents.
- Mn makes it possible to limit the content of Mg and therefore to reduce the risk of segregation; it is advantageously greater than about 0.4%.
- the addition of a small amount of copper less than or equal to 0.4% and preferably less than 0.2% and / or the addition of chromium up to about 0.2% makes it possible to improve the mechanical strength of the alloy.
- silicon and iron these are mainly impurities whose presence depends on the quality of the aluminum used.
- the silicon is less than 0.3% or better than 0.2% and the iron to 0.5% or better than 0.3%.
- alloys A, B and C Three types of alloys A, B and C have been used, their composition by weight:
- alloys were subjected during their preparation to a refining treatment by adding an aluminum alloy containing titanium and boron of the AT5B type introduced into the liquid metal either directly in the preparation furnace or by melting. progressive of a wire upstream of the oven.
- Said alloys were poured between two cylinders in the form of strips of thickness 2.8 mm at the speed of 3 m / min.
- Annealing I is followed by annealing II.
- the annealed strip is then subjected to 6 rolling passes without annealing intermediate to bring it in the form of a sheet of final thickness of 270 micrometers.
- Said sheet is then degreased, subjected to a chemical conversion treatment to be then varnished on both sides.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Metal Rolling (AREA)
- Laminated Bodies (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Table Devices Or Equipment (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9308987 | 1993-07-16 | ||
FR9308987A FR2707668A1 (fr) | 1993-07-16 | 1993-07-16 | Procédé de fabrication d'une feuille mince apte à la confection de couvercles de boîtes. |
FR9311814 | 1993-09-29 | ||
FR9311814A FR2707669B1 (fr) | 1993-07-16 | 1993-09-29 | Procédé de fabrication d'une feuille mince apte à la confection d'éléments constitutifs de boîtes. |
PCT/FR1994/000861 WO1995002708A1 (fr) | 1993-07-16 | 1994-07-11 | Procede de fabrication d'une feuille mince apte a la confection d'elements constitutifs de boites |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0660882A1 true EP0660882A1 (de) | 1995-07-05 |
EP0660882B1 EP0660882B1 (de) | 1999-05-19 |
Family
ID=26230496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94922899A Expired - Lifetime EP0660882B1 (de) | 1993-07-16 | 1994-07-11 | Verfahren zur herstellung dünner bleche, geeignet für die anfertigung von dosenteilen |
Country Status (12)
Country | Link |
---|---|
US (1) | US5616190A (de) |
EP (1) | EP0660882B1 (de) |
JP (1) | JP3689106B2 (de) |
CN (1) | CN1043580C (de) |
BR (1) | BR9405520A (de) |
CA (1) | CA2144757C (de) |
DE (1) | DE69418581T2 (de) |
ES (1) | ES2131696T3 (de) |
FR (1) | FR2707669B1 (de) |
IL (1) | IL110237A (de) |
SA (1) | SA94150111B1 (de) |
WO (1) | WO1995002708A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5655593A (en) * | 1995-09-18 | 1997-08-12 | Kaiser Aluminum & Chemical Corp. | Method of manufacturing aluminum alloy sheet |
US5913989A (en) * | 1996-07-08 | 1999-06-22 | Alcan International Limited | Process for producing aluminum alloy can body stock |
FR2805827B1 (fr) * | 2000-03-03 | 2002-04-12 | Pechiney Rhenalu | Procede de fabrication de bandes en alliage d'aluminium aptes a la fabrication de corps de boites |
US6581675B1 (en) | 2000-04-11 | 2003-06-24 | Alcoa Inc. | Method and apparatus for continuous casting of metals |
US6672368B2 (en) * | 2001-02-20 | 2004-01-06 | Alcoa Inc. | Continuous casting of aluminum |
WO2003066927A1 (en) * | 2002-02-08 | 2003-08-14 | Nichols Aluminium | Method and apparatus for producing a solution heat treated sheet |
US20040007295A1 (en) * | 2002-02-08 | 2004-01-15 | Lorentzen Leland R. | Method of manufacturing aluminum alloy sheet |
CN100413986C (zh) * | 2003-04-15 | 2008-08-27 | 日本轻金属株式会社 | 具有优异模压成型性及连续电阻点焊性的铝合金板及其生产方法 |
RU2501881C2 (ru) * | 2010-04-08 | 2013-12-20 | Леонид Мордухович Коганов | Способ холодной многопроходной прокатки тонких лент из алюминиевых сплавов |
JP2012188703A (ja) * | 2011-03-10 | 2012-10-04 | Kobe Steel Ltd | 樹脂被覆缶胴用アルミニウム合金板およびその製造方法 |
JP5675447B2 (ja) * | 2011-03-10 | 2015-02-25 | 株式会社神戸製鋼所 | 樹脂被覆缶胴用アルミニウム合金板およびその製造方法 |
RU2602583C2 (ru) * | 2015-04-20 | 2016-11-20 | федеральное государственное автономное образовательное учреждение высшего образования "Самарский государственный аэрокосмический университет имени академика С.П. Королева (национальный исследовательский университет)" (СГАУ) | Способ изготовления тонких полос из труднодеформируемых алюминий-литиевых сплавов |
AU2018249841B2 (en) * | 2017-04-05 | 2020-12-24 | Novelis Inc. | Anodized quality 5xxx aluminum alloys with high strength and high formability and methods of making the same |
DE102018215254A1 (de) * | 2018-09-07 | 2020-03-12 | Neuman Aluminium Austria Gmbh | Aluminiumlegierung, Halbzeug, Dose, Verfahren zur Herstellung eines Butzen, Verfahren zur Herstellung einer Dose sowie Verwendung einer Aluminiumlegierung |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4235646A (en) * | 1978-08-04 | 1980-11-25 | Swiss Aluminium Ltd. | Continuous strip casting of aluminum alloy from scrap aluminum for container components |
US4407679A (en) * | 1980-11-19 | 1983-10-04 | National Steel Corporation | Method of producing high tensile aluminum-magnesium alloy sheet and the products so obtained |
US4411707A (en) * | 1981-03-12 | 1983-10-25 | Coors Container Company | Processes for making can end stock from roll cast aluminum and product |
US4435213A (en) * | 1982-09-13 | 1984-03-06 | Aluminum Company Of America | Method for producing aluminum powder alloy products having improved strength properties |
SU1748899A1 (ru) * | 1989-09-01 | 1992-07-23 | Институт машиноведения Уральского отделения АН СССР | Способ обработки материалов в водородсодержащей среде |
US5186235A (en) * | 1990-10-31 | 1993-02-16 | Reynolds Metals Company | Homogenization of aluminum coil |
EP0666330A3 (de) * | 1991-03-14 | 1996-07-17 | Pechiney Rhenalu | Zum Tiefziehen geeignete Hochfeste verformbare isotropische Legierungen auf Aluminiumbasis. |
CA2081055C (en) * | 1991-11-05 | 1999-12-21 | John R. Eppeland | Method and apparatus for heat treatment of metal parts utilizing infrared radiation |
CA2096366C (en) * | 1992-06-23 | 2008-04-01 | Gavin F. Wyatt-Mair | A method of manufacturing can body sheet |
US5514228A (en) * | 1992-06-23 | 1996-05-07 | Kaiser Aluminum & Chemical Corporation | Method of manufacturing aluminum alloy sheet |
JP3290274B2 (ja) * | 1993-11-15 | 2002-06-10 | 富士写真フイルム株式会社 | 平版印刷版支持体の製造方法 |
-
1993
- 1993-09-29 FR FR9311814A patent/FR2707669B1/fr not_active Expired - Lifetime
-
1994
- 1994-07-07 IL IL110237A patent/IL110237A/en not_active IP Right Cessation
- 1994-07-11 CA CA002144757A patent/CA2144757C/fr not_active Expired - Fee Related
- 1994-07-11 JP JP50437295A patent/JP3689106B2/ja not_active Expired - Fee Related
- 1994-07-11 ES ES94922899T patent/ES2131696T3/es not_active Expired - Lifetime
- 1994-07-11 EP EP94922899A patent/EP0660882B1/de not_active Expired - Lifetime
- 1994-07-11 US US08/397,067 patent/US5616190A/en not_active Expired - Fee Related
- 1994-07-11 WO PCT/FR1994/000861 patent/WO1995002708A1/fr active IP Right Grant
- 1994-07-11 DE DE69418581T patent/DE69418581T2/de not_active Expired - Fee Related
- 1994-07-11 BR BR9405520-3A patent/BR9405520A/pt not_active IP Right Cessation
- 1994-07-11 CN CN94190606A patent/CN1043580C/zh not_active Expired - Lifetime
- 1994-08-03 SA SA94150111A patent/SA94150111B1/ar unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9502708A1 * |
Also Published As
Publication number | Publication date |
---|---|
IL110237A0 (en) | 1994-10-21 |
WO1995002708A1 (fr) | 1995-01-26 |
CN1043580C (zh) | 1999-06-09 |
SA94150111B1 (ar) | 2005-06-14 |
JPH08501604A (ja) | 1996-02-20 |
DE69418581D1 (de) | 1999-06-24 |
FR2707669B1 (fr) | 1995-08-18 |
FR2707669A1 (fr) | 1995-01-20 |
EP0660882B1 (de) | 1999-05-19 |
CA2144757C (fr) | 2004-06-08 |
CN1113659A (zh) | 1995-12-20 |
DE69418581T2 (de) | 1999-10-28 |
CA2144757A1 (fr) | 1995-01-26 |
US5616190A (en) | 1997-04-01 |
ES2131696T3 (es) | 1999-08-01 |
IL110237A (en) | 1998-02-22 |
JP3689106B2 (ja) | 2005-08-31 |
BR9405520A (pt) | 1999-09-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0660882B1 (de) | Verfahren zur herstellung dünner bleche, geeignet für die anfertigung von dosenteilen | |
EP0983129B1 (de) | Verfahren zur herstellung von aluminiumbändern durch rollen-bandgiessen | |
EP2997171B1 (de) | Aluminium-legierung-blatt für metallische becher oder sprühflasche | |
EP1228254B1 (de) | Verfahren zum herstellen von kohlenstoffstahlbändern, insbesondere für verpackungsmaterial | |
CA2467681C (fr) | Bandes en alliage d'aluminium pour echangeurs thermiques | |
EP1644545B1 (de) | Dünne bänder oder bleche aus einer al-fe-si-legierung | |
JP2001073058A (ja) | 耐ブローアップ性に優れた缶エンド用アルミニウム合金板およびその製造方法 | |
FR2805827A1 (fr) | Procede de fabrication de bandes en alliage d'aluminium aptes a la fabrication de corps de boites | |
FR2836154A1 (fr) | Bandes minces en alliage aluminium-fer | |
EP0300927B1 (de) | Legierung auf Aluminiumbasis für Getränkedosen und Verfahren zu ihrer Herstellung | |
FR2707668A1 (fr) | Procédé de fabrication d'une feuille mince apte à la confection de couvercles de boîtes. | |
CA2312673C (fr) | Tole d'acier a bas carbone calme a l'aluminium pour emballage | |
JP3853103B2 (ja) | 開缶性が優れたアルミニウム合金板の製造方法 | |
EP0547175A1 (de) | Aluminiumlegierungsbleche | |
JPH01208438A (ja) | 包装用アルミニウム合金硬質板の製造法 | |
JP2001032057A (ja) | 耐ブローアップ性に優れる缶エンド用アルミニウム合金板の製造方法 | |
JP3719678B2 (ja) | 包装容器蓋用アルミニウム合金複合板およびその製造方法 | |
JPS63149348A (ja) | 包装用アルミニウム合金の製造方法 | |
FR2846340A1 (fr) | Procede de fabrication de bandes en alliage d'aluminium pour ustensiles culinaires | |
FR2703072A1 (fr) | Tôles ou bandes en alliages d'Al (série 5000) à faible anisotropie mécanique et leur procédé d'obtention. | |
FR2689907A1 (fr) | Procédé de production d'une tôle d'acier formée par recuit continu et tôle produite par ce procédé. | |
JPH07126788A (ja) | 2次バックリング後の耐スコア割れ性に優れるステイオンタブ用缶蓋材およびその製造方法 | |
FR2505365A1 (fr) | Feuillard d'aluminium, son procede de fabrication et son application a l'obtention de boites de conserve | |
LU86155A1 (fr) | Procede de fabrication d'une bande en acier laminee a froid |
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: 19950327 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE DE ES FR GB IT NL |
|
17Q | First examination report despatched |
Effective date: 19980504 |
|
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): BE DE ES FR GB IT NL |
|
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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19990519 |
|
REF | Corresponds to: |
Ref document number: 69418581 Country of ref document: DE Date of ref document: 19990624 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19990707 Year of fee payment: 6 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2131696 Country of ref document: ES Kind code of ref document: T3 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19990713 |
|
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 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: RT |
|
26N | No opposition filed | ||
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: 20010330 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20040618 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20040621 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20040708 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20040719 Year of fee payment: 11 |
|
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;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050711 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050711 |
|
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: 20050712 |
|
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: 20050731 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060201 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20050711 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20050712 |
|
BERE | Be: lapsed |
Owner name: *PECHINEY RHENALU Effective date: 20050731 |