(19)

(11)

EP 3 959 346 A1

(12)

(43) Date of publication: 02.03.2022 Bulletin 2022/09 (21) Application number: 20717682.7 (22) Date of filing: 15.04.2020

(51) International Patent Classification (IPC):  C21D 9/46(2006.01) C21D 1/26(2006.01) C22F 1/053(2006.01) C21D 11/00(2006.01) C22F 1/04(2006.01) C22F 1/06(2006.01) (52) Cooperative Patent Classification (CPC): C21D 11/00; C21D 9/46; C22F 1/002; C22F 1/053; C21D 1/26; C22F 1/047; C22F 1/04 (86) International application number: PCT/EP2020/060520 (87) International publication number: WO 2020/216653 (29.10.2020 Gazette 2020/44)

(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: 23.04.2019 US 201962837338 P 07.05.2019 EP 19172936 (71) Applicants: Velocium Abs Corp. Lewisport KY 42351 (US) Alvance Aluminium Duffel BV 2570 Duffel (BE)	(72) Inventors: ARRAS, Johan Petrus Mariette Guido 2230 Herselt (BE) LODZIK, Jason P. Owensboro, Kentucky 42303 (US) HARRIS, Jamaal D. Philpot, Kentucky 42366 (US) ELWELL, Christopher Utica, Kentucky 42376 (US) (74) Representative: Müller Schupfner & Partner Patent- und Rechtsanwaltspartnerschaft mbB  Bavariaring 11 80336 München 80336 München (DE)