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EP 4 503 971 A1

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(43) Date of publication: 12.02.2025 Bulletin 2025/07 (21) Application number: 23785584.6 (22) Date of filing: 05.04.2023

(51) International Patent Classification (IPC):  A24D 3/06(2006.01) A24D 3/04(2006.01) A24D 1/20(2020.01) A24D 3/10(2006.01) A24D 1/04(2006.01) (52) Cooperative Patent Classification (CPC): A24D 3/04; A24D 1/20; A24D 3/10; A24D 3/063; A24D 3/062 (86) International application number: PCT/US2023/065354 (87) International publication number: WO 2023/196831 (12.10.2023 Gazette 2023/41)

(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 (30) Priority: 08.04.2022 US 202263362686 P (71) Applicant: Eastman Chemical Company Kingsport, TN 37660 (US)	(72) Inventors: VERDU BLASCO, Pablo 6330 Cham, Zug (CH) JENKINS, Cameron, Cobb Kingsport, TN 37664 (US) (74) Representative: Ricker, Mathias  Wallinger Ricker Schlotter Tostmann Patent- und Rechtsanwälte Partnerschaft mbB Zweibrückenstraße 5-7 80331 München 80331 München (DE)