(19)

(11)

EP 3 986 629 A1

(12)

(43) Date of publication: 27.04.2022 Bulletin 2022/17 (21) Application number: 21731160.4 (22) Date of filing: 09.06.2021

(51) International Patent Classification (IPC):  B21C 23/00(2006.01) B21C 23/08(2006.01) C22C 21/08(2006.01) C22F 1/00(2006.01) B21C 23/03(2006.01) B21C 37/04(2006.01) C22F 1/05(2006.01) (52) Cooperative Patent Classification (CPC): C22C 21/08; B21C 23/002; B21C 23/035; C22F 1/002; C22F 1/05; B21C 29/006; B21C 51/00 (86) International application number: PCT/EP2021/065484 (87) International publication number: WO 2021/254852 (23.12.2021 Gazette 2021/51)

(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: 15.06.2020 EP 20180037 19.01.2021 WO PCT/EP2021/051078 (71) Applicant: Fotij, Dimitri 3630 Maasmechelen (BE)	(72) Inventor: Fotij, Dimitri 3630 Maasmechelen (BE) (74) Representative: Arnold & Siedsma  Bezuidenhoutseweg 57 2594 AC The Hague 2594 AC The Hague (NL)