(19)

(11)

EP 3 749 733 A1

(12)

(43) Date of publication: 16.12.2020 Bulletin 2020/51 (21) Application number: 19703074.5 (22) Date of filing: 04.02.2019

(51) International Patent Classification (IPC):  C09K 19/02(2006.01) C09K 19/52(2006.01) C09K 19/30(2006.01) C09K 19/04(2006.01) C09K 19/54(2006.01) C09K 19/32(2006.01) (86) International application number: PCT/EP2019/052567 (87) International publication number: WO 2019/154740 (15.08.2019 Gazette 2019/33)

(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: 06.02.2018 EP 18155207 (71) Applicant: Merck Patent GmbH 64293 Darmstadt (DE)	(72) Inventors: GREINERT, Nils 64342 SEEHEIM-JUGENHEIM (DE) BREMER, Matthias 64295 DARMSTADT (DE) SUESS, Patrick 69514 LAUDENBACH (DE) HAWLITSCHEK, Anna Lisa 64283 DARMSTADT (DE) SEEGER, Renate 64560 RIEDSTADT (DE)