(19)

(11)

EP 3 817 860 A1

(12)

(43) Date of publication: 12.05.2021 Bulletin 2021/19 (21) Application number: 19734426.0 (22) Date of filing: 04.07.2019

(51) International Patent Classification (IPC):  B03D 1/008(2006.01) B03D 1/01(2006.01) B03D 1/004(2006.01) B03D 1/02(2006.01) (86) International application number: PCT/EP2019/067975 (87) International publication number: WO 2020/007971 (09.01.2020 Gazette 2020/02)

(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: 06.07.2018 EP 18182117 (71) Applicant: Nouryon Chemicals International B.V. 6824 BM Arnhem (NL)	(72) Inventors: NORDBERG, Henrik 444 53 Stenungsund (SE) GOLETS, Mikhail 444 85 Stenungsund (SE) KLEBERGER HELLSTRÖM, Åsa Hele'n Jeanette 459 33 Ljungskile (SE) DE LIMA, Odair Alves 05579-000 São Paulo (BR) ALBINO, Kelly Ivone Pina 13221-560 São Paulo (BR) (74) Representative: LKGlobal UK Ltd.  Cambridge House, Henry Street Bath BA1 1BT Bath BA1 1BT (GB)