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(11)

EP 3 794 056 A1

(12)

(43) Date of publication: 24.03.2021 Bulletin 2021/12 (21) Application number: 19724389.2 (22) Date of filing: 09.05.2019

(51) International Patent Classification (IPC):  C08G 65/40(2006.01) C08G 75/23(2006.01) B01D 61/14(2006.01) C08G 65/48(2006.01) C08L 71/00(2006.01) (86) International application number: PCT/EP2019/061885 (87) International publication number: WO 2019/219486 (21.11.2019 Gazette 2019/47)

(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: 15.05.2018 US 201815975900 (71) Applicant: Cytiva Sweden AB 751 84 Uppsala (SE)	(72) Inventors: MOORE, David New York 12309 (US) MISNER, Matthew, Jeremiah New York 12309 (US) ZHOU, Hongyi New York 12309 (US) MCCLOSKEY, Patrick New York 12309 (US) RAINKA, Matthew New York 12309 (US) (74) Representative: Larsson, Jan Anders  Cytiva Sweden AB Intellectual Property Cytiva Björkgatan 30 751 84 Uppsala 751 84 Uppsala (SE)