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(11)

EP 4 352 273 A1

(12)

(43) Date of publication: 17.04.2024 Bulletin 2024/16 (21) Application number: 22819725.7 (22) Date of filing: 07.06.2022

(51) International Patent Classification (IPC):  C22C 21/02(2006.01) C22C 1/02(2006.01) C22C 21/04(2006.01) C22F 1/043(2006.01) (52) Cooperative Patent Classification (CPC): C22C 1/026; C22C 1/03; C22C 21/02; C22C 21/04; C22F 1/043; B22D 21/04 (86) International application number: PCT/IB2022/055280 (87) International publication number: WO 2022/259136 (15.12.2022 Gazette 2022/50)

(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: 07.06.2021 EP 21178006 (71) Applicant: Dubai Aluminium Pjsc Dubai 24920 (AE)	(72) Inventors: ALLAN, Feras Dubai, 24920 (AE) STOYANOV, Peio Todorov Los Angeles, California 91364 (US) BIN KALBAN, Abdulla Mohammad Jassim Dubai, 24920 (AE) (74) Representative: Schmidt, Martin Peter  IXAS Conseil 22 avenue René Cassin 69009 Lyon 69009 Lyon (FR)