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(11)

EP 4 816 506 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24799708.3 (22) Date of filing: 10.10.2024

(51) International Patent Classification (IPC):  C11D 1/66(2006.01) C11D 3/08(2006.01) C11D 3/20(2006.01) C11D 3/22(2006.01) C11D 3/10(2006.01) (52) Cooperative Patent Classification (CPC): C11D 3/225; C11D 1/66; C11D 3/10; C11D 3/2086; C11D 3/08; C11D 2111/14 (86) International application number: PCT/US2024/050712 (87) International publication number: WO 2025/117044 (05.06.2025 Gazette 2025/23)

(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: 28.11.2023 US 202363603125 P (71) Applicant: Rohm and Haas Company Collegeville, PA 19426 (US)	(72) Inventors: YIN, Ligeng Collegeville, Pennsylvania 19426 (US) BACKER, Scott Collegeville, Pennsylvania 19426 (US) MERCANDO, Paul Collegeville, Pennsylvania 19426 (US) PULUKKODY, Randara Collegeville, Pennsylvania 19426 (US) (74) Representative: Beck Greener LLP  Fulwood House 12 Fulwood Place London WC1V 6HR London WC1V 6HR (GB)