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EP 4 824 025 A1

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(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 25701934.9 (22) Date of filing: 24.01.2025

(51) International Patent Classification (IPC):  C07C 43/166(2006.01) C11D 1/00(2006.01) C11D 3/20(2006.01) C11D 7/26(2006.01) C07C 43/215(2006.01) C11D 3/00(2006.01) C11D 3/50(2006.01) (52) Cooperative Patent Classification (CPC): C07C 43/215; C07C 43/166; C11D 3/0068; C11D 3/507; C11D 3/2068; C11D 7/263 (86) International application number: PCT/EP2025/051741 (87) International publication number: WO 2025/157960 (31.07.2025 Gazette 2025/31)

(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: 26.01.2024 US 202463625369 P (71) Applicant: Firmenich SA 1242 Satigny (CH)

(72) Inventors: WOMACK, Gary Plainsboro, New Jersey 08536 (US) JERRI, Huda A. Plainsboro, New Jersey 08536 (US) RINKER, Jennifer Lea Cincinnati, Ohio 45202 (US) SORIN, Sylvain Andre Cincinnati, Ohio 45202 (US) VON TSCHARNER, Sabine Emmanuelle Plainsboro, New Jersey 08536 (US) KNAB, Robert Anton Plainsboro, New Jersey 08536 (US) LEVADE, Guillaume Daniel Gariel Plainsboro, New Jersey 08536 (US) (74) Representative: Strych, Sebastian  Mitscherlich PartmbB Karlstraße 7 80333 München 80333 München (DE)