(19)

(11)

EP 3 802 732 A1

(12)

(43) Date of publication: 14.04.2021 Bulletin 2021/15 (21) Application number: 19727624.9 (22) Date of filing: 27.05.2019

(51) International Patent Classification (IPC):  C09K 19/34(2006.01) C09K 19/12(2006.01) C09K 19/30(2006.01) C09K 19/04(2006.01) C09K 19/20(2006.01) (86) International application number: PCT/EP2019/063561 (87) International publication number: WO 2019/228939 (05.12.2019 Gazette 2019/49)

(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: 30.05.2018 EP 18175209 (71) Applicant: Merck Patent GmbH 64293 Darmstadt (DE)	(72) Inventors: GOETZ, Achim 64665 ALSBACH-HAEHNLEIN (DE) MAAG, Sabrina 64319 PFUNGSTADT (DE) FORTTE, Rocco 65933 FRANKFURT AM MAIN (DE)