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EP 3 772 985 A1

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(43) Date of publication: 17.02.2021 Bulletin 2021/07 (21) Application number: 19711907.6 (22) Date of filing: 20.03.2019

(51) International Patent Classification (IPC):  A23K 20/00(2016.01) A23K 50/80(2016.01) A23K 20/10(2016.01) (86) International application number: PCT/EP2019/056905 (87) International publication number: WO 2019/185408 (03.10.2019 Gazette 2019/40)

(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: 27.03.2018 EP 18164212 (71) Applicant: Evonik Operations GmbH 45128 Essen (DE)	(72) Inventors: SAMARTZIS, Alexandros Athens, 14121 (GR) RADEMACHER-HEILSHORN, Meike 27628 Wulsbüttel (DE) MASAGOUNDER, Karthik 63303 Dreieich (DE) CHANNARAYA-PATNA KRISHNEGODWA, Girish Singapore 588195 (SG) (74) Representative: Evonik Patent Association  c/o Evonik Industries AG IP Management Bau 1042A/PB 15 Paul-Baumann-Straße 1 45772 Marl 45772 Marl (DE)