Global Patent Index - EP 0818553 B1

EP 0818553 B1 2001-02-28 - Method of manufacture of aluminium sheet of the AA5000 type

Title (en)

Method of manufacture of aluminium sheet of the AA5000 type

Title (de)

Verfahren zur Herstellung von Blech aus Aluminium von Typ AA5000

Title (fr)

Procédé de fabrication de feuille d'aluminium du type AA5000

Publication

EP 0818553 B1 (EN)

Application

EP 97201948 A

Priority

NL 1003453 A

Abstract (en)

[origin: EP0818553A1] In a method for the manufacture of aluminium alloy sheet having a content of Mg of 1.5 to 8.0 wt% and a total content of (Mn + Cr + Zr) of not more than 0.1 wt%, a solution heat treatment step is carried out at final thickness of the sheet in a continuous annealing furnace. In this solution heat treatment the heating rate of the sheet in the heating region of said continuous annealing furnace is at least 50 DEG C/s. Induction heating may be used. Improved properties can be obtained.

IPC 1-7 (main, further and additional classification)

C22F 1/047; C22C 21/06

IPC 8 full level (invention and additional information)

C22C 21/06 (2006.01); C22F 1/047 (2006.01)

CPC (invention and additional information)

C22C 21/06 (2013.01); C22F 1/047 (2013.01)

Designated contracting state (EPC)

BE CH DE ES FR GB LI NL

EPO simple patent family

EP 0818553 A1 19980114; EP 0818553 B1 20010228; DE 69704139 D1 20010405; NL 1003453 C2 19980107

INPADOC legal status


2016-07-29 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: GB

- Payment date: 20160628

- Year of fee payment: 20

2002-02-20 [26N] NO OPPOSITION FILED

2002-01-01 [REG GB IF02] EUROPEAN PATENT IN FORCE AS OF 2002-01-01

2001-08-31 [REG CH PL] PATENT CEASED

2001-08-01 [NLV1] NL: LAPSED OR ANNULLED DUE TO FAILURE TO FULFILL THE REQUIREMENTS OF ART. 29P AND 29M OF THE PATENTS ACT

2001-07-27 [EN] FR: TRANSLATION NOT FILED

2001-05-29 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

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

- Effective date: 20010529

2001-04-05 [REF] CORRESPONDS TO:

- Document: DE 69704139 20010405

2001-02-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): BE CH DE ES FR GB LI NL

2001-02-28 [REG CH EP] ENTRY IN THE NATIONAL PHASE

2001-02-28 [PG25 BE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: BE

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

- Effective date: 20010228

2001-02-28 [PG25 CH] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: CH

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

- Effective date: 20010228

2001-02-28 [PG25 ES] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: ES

- Free text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

- Effective date: 20010228

2001-02-28 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FR

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

- Effective date: 20010228

2001-02-28 [PG25 LI] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: LI

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

- Effective date: 20010228

2001-02-28 [PG25 NL] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: NL

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

- Effective date: 20010228

2000-09-13 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: CORUS ALUMINIUM N.V.

1999-09-29 [RTI1] TITLE (CORRECTION)

- Free text: METHOD OF MANUFACTURE OF ALUMINIUM SHEET OF THE AA5000 TYPE

1999-02-24 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19990108

1998-09-23 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: BE CH DE ES FR GB LI NL

1998-09-23 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Designated State(s): BE CH DE ES FR GB LI NL

1998-09-09 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980714

1998-01-14 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE CH DE ES FR GB LI NL