(19)
(11) EP 3 676 410 A1

(12)

(43) Date of publication:
08.07.2020 Bulletin 2020/28

(21) Application number: 18797512.3

(22) Date of filing: 23.10.2018
(51) International Patent Classification (IPC): 
C22C 21/08(2006.01)
C22F 1/05(2006.01)
 C22C 21/02(2006.01)
(86) International application number:
PCT/US2018/057054
(87) International publication number:
WO 2019/083969 (02.05.2019 Gazette 2019/18)
(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: 23.10.2017 US 201762575573 P

(71) Applicant: Novelis Inc.
Atlanta, GA 30326 (US)

(72) Inventors:
  • DAS, Sazol Kumar
    Acworth, Georgia 30102 (US)
  • DESPOIS, Aude
    3979 Grone (CH)
  • KAMAT, Rajeev G.
    Marietta, Georgia 30062 (US)

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

   


(54) HIGH-STRENGTH, HIGHLY FORMABLE ALUMINUM ALLOYS AND METHODS OF MAKING THE SAME