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(11)

EP 4 281 595 A1

(12)

(43) Date of publication: 29.11.2023 Bulletin 2023/48 (21) Application number: 22702901.4 (22) Date of filing: 21.01.2022

(51) International Patent Classification (IPC):  C23C 4/02(2006.01) C23C 4/18(2006.01) C23C 4/06(2016.01) C23C 4/11(2016.01) C23C 4/134(2016.01) B22C 9/00(2006.01) C23C 4/073(2016.01) C23C 28/00(2006.01) (52) Cooperative Patent Classification (CPC): C23C 4/02; C23C 4/18; C23C 4/134; C23C 4/11; C23C 4/06; C23C 4/073; C23C 28/321; C23C 28/3215; C23C 28/3455; C23C 28/36; B22C 9/10; B22C 9/18; B22C 3/00; B22C 9/12; B22D 15/02 (86) International application number: PCT/EP2022/051388 (87) International publication number: WO 2022/157331 (28.07.2022 Gazette 2022/30)

(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: 22.01.2021 US 202163140341 P (71) Applicant: Oerlikon Metco AG, Wohlen 5610 Wohlen (CH)	(72) Inventors: HALIL, Arifovic 5314 Kleindöttingen (CH) ZAHALKA, Frantisek 5610 Wohlen AG (CH) GIRGULIS, James William 8805 Richterswil (CH) (74) Representative: IPS Irsch AG  Langfeldstrasse 88 8500 Frauenfeld 8500 Frauenfeld (CH)