(19)

(11)

EP 4 176 111 A1

(12)

(43) Date of publication: 10.05.2023 Bulletin 2023/19 (21) Application number: 21737917.1 (22) Date of filing: 14.06.2021

(51) International Patent Classification (IPC):  D01D 5/22(2006.01) D01F 8/14(2006.01) D04H 3/009(2012.01) D01F 8/12(2006.01) D06N 7/00(2006.01) (52) Cooperative Patent Classification (CPC): D01D 5/22; D01F 8/12; D01F 8/14; D06N 7/0065; D04H 3/147; D04H 3/011; D04H 11/00; D04H 1/43828; D04H 1/435 (86) International application number: PCT/US2021/037159 (87) International publication number: WO 2022/005725 (06.01.2022 Gazette 2022/01)

(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: 02.07.2020 US 202063047413 P (71) Applicant: DuPont Industrial Biosciences USA, LLC Wilmington, Delaware 19805 (US)	(72) Inventor: MADELEINE, Dennis Gerard WILMINGTON, Delaware 19803 (US) (74) Representative: Mewburn Ellis LLP  Aurora Building Counterslip Bristol BS1 6BX Bristol BS1 6BX (GB)