(19)

(11)

EP 4 139 261 A1

(12)

(43) Date of publication: 01.03.2023 Bulletin 2023/09 (21) Application number: 21721048.3 (22) Date of filing: 21.04.2021

(51) International Patent Classification (IPC):  C03C 17/36(2006.01) C22C 5/00(2006.01) C23C 14/00(2006.01) (52) Cooperative Patent Classification (CPC): C03C 17/36; C03C 17/3618; C03C 17/3647; C03C 17/366; C03C 17/3681; C03C 2217/944; C22C 5/06; C23C 14/185; C23C 14/024; C23C 14/3414 (86) International application number: PCT/EP2021/060329 (87) International publication number: WO 2021/214110 (28.10.2021 Gazette 2021/43)

(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: 21.04.2020 SE 2050460 (71) Applicant: Mimsi Materials AB 583 30 Linköping (SE)	(72) Inventors: ELOFSSON, John Viktor 583 94 Nykil (SE) PILLAY, Sankara 585 97 Linköping (SE) GUNNARSSON, Rickard Tim 595 97 Mantorp (SE) SARAKINOS, Konstantinos 582 23 Linköping (SE) (74) Representative: AWA Sweden AB  Junkersgatan 1 582 35 Linköping 582 35 Linköping (SE)