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EP 4 326 840 A1

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(43) Date of publication: 28.02.2024 Bulletin 2024/09 (21) Application number: 22701178.0 (22) Date of filing: 12.01.2022

(51) International Patent Classification (IPC):  C10L 1/14(2006.01) C10L 1/196(2006.01) C10L 1/16(2006.01) C10L 10/16(2006.01) (52) Cooperative Patent Classification (CPC): C10L 1/146; C10L 1/1641; C10L 1/1966; C10L 10/16 (86) International application number: PCT/EP2022/050529 (87) International publication number: WO 2022/223153 (27.10.2022 Gazette 2022/43)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 21.04.2021 US 202117236635 20.05.2021 EP 21174872 (71) Applicant: Clariant International Ltd 4132 Muttenz (CH)

(72) Inventors: KAISER, Anton 68723 Schwetzingen (DE) FEUSTEL, Michael 55278 Köngernheim (DE) KAYSER, Christoph 65926 Frankfurt am Main (DE) KRULL, Matthias 55296 Harxheim (DE) SCHÄFER, Michael 65384 Gründau-Rothenbergen (DE) SMITH, Rashod Houston, Texas 77070 (US) (74) Representative: Clariant Produkte (Deutschland) GmbH  Patent Management Industriepark Höchst, G 860 65926 Frankfurt am Main 65926 Frankfurt am Main (DE)