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EP 4 770 784 A1

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(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24772502.1 (22) Date of filing: 28.08.2024

(51) International Patent Classification (IPC):  B01D 53/22(2006.01) B01D 61/00(2006.01) B01D 69/08(2006.01) B01D 57/00(2006.01) B01D 67/00(2006.01) B01D 71/02(2006.01) (52) Cooperative Patent Classification (CPC): B01D 53/226; B01D 53/228; B01D 67/0067; B01D 2256/16; B01D 2257/504; B01D 2257/7022; B01D 71/68; B01D 71/021; B01D 69/08; B01D 69/02; B01D 2325/20 (86) International application number: PCT/US2024/044158 (87) International publication number: WO 2025/049557 (06.03.2025 Gazette 2025/10)

(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: 30.08.2023 US 202363579624 P (71) Applicant: Dow Global Technologies LLC Midland, MI 48674 (US)

(72) Inventors: VENNA, Surendar R. Freeport, Texas 77541 (US) ROY, Abhishek Golden, Colorado 80401 (US) FISH, Barry B. Lake Jackson, Texas 77566 (US) ROGERS, Gerard M. Freeport, Texas 77541 (US) TANG, Li Lexington, Massachusetts 02421 (US) FLICK, Derrick W. Houston, Texas 77077 (US) (74) Representative: Boult Wade Tennant LLP  Salisbury Square House 8 Salisbury Square London EC4Y 8AP London EC4Y 8AP (GB)