(19)

(11)

EP 3 814 562 A1

(12)

(43) Date of publication: 05.05.2021 Bulletin 2021/18 (21) Application number: 19746554.5 (22) Date of filing: 26.06.2019

(51) International Patent Classification (IPC):  D01F 6/92(2006.01) D02G 3/02(2006.01) D01F 8/14(2006.01) (86) International application number: PCT/US2019/039183 (87) International publication number: WO 2020/006043 (02.01.2020 Gazette 2020/01)

(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: 28.06.2018 US 201862691066 P 19.10.2018 US 201862747999 P (71) Applicant: DuPont Industrial Biosciences USA, LLC Wilmington, Delaware 19805 (US)	(72) Inventors: ACKERMAN, Steven R. Philadelphia, Pennsylvania 19125 (US) KUMAR, Akshay Gurugram, Haryana 122018 (IN) MADELEINE, Dennis Gerard Wilmington, Delaware 19803 (US) MARSH, Wayne E. Bear, Delaware 19701 (US) SAMANT, Kalika Ranjan Hockessin, Delaware 19707 (US) (74) Representative: Mewburn Ellis LLP  Aurora Building Counterslip Bristol BS1 6BX Bristol BS1 6BX (GB)