(19)

(11)

EP 4 823 723 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24818129.9 (22) Date of filing: 18.11.2024

(51) International Patent Classification (IPC):  B01D 69/14(2006.01) B01D 71/38(2006.01) B01D 71/26(2006.01) (52) Cooperative Patent Classification (CPC): B01D 71/261; B01D 71/38; B01D 69/148; B01D 2323/21 (86) International application number: PCT/US2024/056327 (87) International publication number: WO 2025/128283 (19.06.2025 Gazette 2025/25)

(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: GE KH MA MD TN (30) Priority: 13.12.2023 US 202363609382 P (71) Applicant: PPG Industries Ohio, Inc. Cleveland, OH 44111 (US)	(72) Inventors: DEI, Daniel K. Cleveland, Ohio 44111 (US) FABER, Matthew Scott Cleveland, Ohio 44111 (US) (74) Representative: f & e patent  Braunsberger Feld 29 51429 Bergisch Gladbach 51429 Bergisch Gladbach (DE)