(19)
(11) EP 4 093 893 A1

(12)

(43) Date of publication:
30.11.2022 Bulletin 2022/48

(21) Application number: 21706077.1

(22) Date of filing: 20.01.2021
(51) International Patent Classification (IPC): 
C22C 21/00(2006.01)
 C22F 1/04(2006.01)
(52) Cooperative Patent Classification (CPC):
C22C 21/00; C22F 1/04; Y02P 10/20
(86) International application number:
PCT/US2021/014183
(87) International publication number:
WO 2021/150610 (29.07.2021 Gazette 2021/30)
(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: 21.01.2020 US 202062963816 P

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

(72) Inventors:
  • KANG, Daehoon
    Kennesaw, Georgia 30144 (US)
  • DASCH, Kyle David
    Kennesaw, Georgia 30144 (US)
  • ROUX, Mitchell Glenn
    Kennesaw, Georgia 30144 (US)
  • HO, John Min
    Kennesaw, Georgia 30144 (US)
  • DAS, Sazol Kumar
    Kennesaw, Georgia 30144 (US)
  • MOHANTY, Rashmi Ranjan
    Kennesaw, Georgia 30144 (US)
  • ZHU, Dewei
    Kennesaw, Georgia 30144 (US)
  • BUCKINGHAM, Stephen
    Decatur, Georgia 30030 (US)
  • OWENS, Amanda
    Kennesaw, Georgia 30144 (US)

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

   


(54) TECHNIQUES FOR PRODUCING ALUMINUM ALLOY PRODUCTS HAVING IMPROVED FORMABILITY AND RECYCLABILITY