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EP 4 460 591 A1

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(43) Date of publication: 13.11.2024 Bulletin 2024/46 (21) Application number: 22826278.8 (22) Date of filing: 07.11.2022

(51) International Patent Classification (IPC):  C23C 22/10(2006.01) C23C 22/50(2006.01) C23C 22/57(2006.01) C23C 22/34(2006.01) C23C 22/56(2006.01) (52) Cooperative Patent Classification (CPC): C23C 22/50; C23C 22/56; C23C 22/57; C23C 22/34; C23C 22/10 (86) International application number: PCT/US2022/079378 (87) International publication number: WO 2023/132989 (13.07.2023 Gazette 2023/28)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 06.01.2022 US 202263266469 P (71) Applicant: PPG Industries Ohio Inc. Cleveland, OH 44111 (US)

(72) Inventors: KUMAR, Kuldeep Pittsburgh, Pennsylvania 15229 (US) ALLEN, Kristi Maree Pittsburgh, Pennsylvania 15201 (US) HARRIS, Rachel Dory Pittsburgh, Pennsylvania 15201 (US) NOTTE, Anthony John Allison Park, Pennsylvania 15101 (US) BROWN-TSENG, Elizabeth Stephenie GIbsonia, Pennsylvania 15044 (US) BEZER, Silvia Suwanee, Georgia 30024 (US) MCMILLEN, Mark William Cabot, Pennsylvania 16023 (US) (74) Representative: f & e patent  Braunsberger Feld 29 51429 Bergisch Gladbach 51429 Bergisch Gladbach (DE)