(19)

(11)

EP 4 511 351 A1

(12)

(43) Date of publication: 26.02.2025 Bulletin 2025/09 (21) Application number: 22818555.9 (22) Date of filing: 03.11.2022

(51) International Patent Classification (IPC):  C07C 29/151(2006.01) C07C 51/54(2006.01) C07C 67/08(2006.01) C01B 3/34(2006.01) C07C 31/04(2006.01) C07C 53/08(2006.01) C07C 69/18(2006.01) (52) Cooperative Patent Classification (CPC): C07C 29/1518; C07C 51/54; C07C 67/08; C10J 2300/0946; C10J 2300/1656   C-Sets: C07C 29/1518, C07C 31/04; C07C 51/54, C07C 53/08; C07C 67/08, C07C 69/18; (86) International application number: PCT/US2022/048817 (87) International publication number: WO 2023/204845 (26.10.2023 Gazette 2023/43)

(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: KH MA MD TN (30) Priority: 21.04.2022 WO PCT/US2022/025663 (71) Applicant: Eastman Chemical Company Kingsport, TN 37660 (US)	(72) Inventors: FLINT, Kenneth, James Roanoke, VA 24018 (US) BROWN, Michael Neil Kingsport, TN 37664 (US) MOSER, Hannah Grace Gate City, VA 24251 (US) BEAUMIER, Evan Patrick 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)