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(11)

EP 4 146 850 A1

(12)

(43) Date of publication: 15.03.2023 Bulletin 2023/11 (21) Application number: 21728382.9 (22) Date of filing: 06.05.2021

(51) International Patent Classification (IPC):  D01D 5/34(2006.01) C08L 23/08(2006.01) D01F 8/06(2006.01) D04H 3/007(2012.01) (52) Cooperative Patent Classification (CPC): D01D 5/34; D01F 8/06; D04H 3/007; D04H 3/147 (86) International application number: PCT/US2021/031010 (87) International publication number: WO 2021/226300 (11.11.2021 Gazette 2021/45)

(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: 08.05.2020 US 202063021790 P (71) Applicant: Dow Global Technologies LLC Midland, MI 48674 (US)	(72) Inventors: LIN, Yijian Freeport, Texas 77541 (US) ZHANG, Lanhe Lake Jackson, Texas 77566 (US) WEVERS, Ronald 4530 NM Hoek (NL) ARTEAGA LARIOS, Fabricio Lake Jackson, Texas 77566 (US) (74) Representative: Boult Wade Tennant LLP  Salisbury Square House 8 Salisbury Square London EC4Y 8AP London EC4Y 8AP (GB)