(19)
(11) EP 4 165 223 A1

(12)

(43) Date of publication:
19.04.2023 Bulletin 2023/16

(21) Application number: 21730296.7

(22) Date of filing: 07.06.2021
(51) International Patent Classification (IPC): 
C22C 21/02(2006.01)
C22C 21/08(2006.01)
C22F 1/05(2006.01)
B01J 3/00(2006.01)
 C22C 21/06(2006.01)
C22F 1/00(2006.01)
C25D 11/10(2006.01)
(52) Cooperative Patent Classification (CPC):
C22C 21/02; C22C 21/08; C22F 1/002; C22F 1/05; C22C 21/06; C25D 11/08
(86) International application number:
PCT/IB2021/054983
(87) International publication number:
WO 2021/250545 (16.12.2021 Gazette 2021/50)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 10.06.2020 EP 20179258

(71) Applicant: Aleris Rolled Products Germany GmbH
56070 Koblenz (DE)

(72) Inventors:
  • AUST, Dennis
    56070 Koblenz (DE)
  • RITZ, Fabian
    56070 Koblenz (DE)
  • JACOBY, Bernd
    56070 Koblenz (DE)

(74) Representative: Dey, Michael 
Weickmann & Weickmann Patent- und Rechtsanwälte PartmbB Postfach 860 820
81635 München
81635 München (DE)

   


(54) METHOD OF MANUFACTURING AN ALUMINIUM ALLOY PLATE FOR VACUUM CHAMBER ELEMENTS