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(11)

EP 4 568 826 A1

(12)

(43) Date of publication: 18.06.2025 Bulletin 2025/25 (21) Application number: 23853365.7 (22) Date of filing: 10.08.2023

(51) International Patent Classification (IPC):  B29C 64/40(2017.01) B29C 64/30(2017.01) B29C 64/118(2017.01) B33Y 40/20(2020.01) B33Y 80/00(2015.01) B29C 35/02(2006.01) B29C 67/20(2006.01) B33Y 10/00(2015.01) B33Y 70/00(2020.01) (52) Cooperative Patent Classification (CPC): B33Y 80/00; B29C 64/118; B33Y 40/20; B33Y 10/00; B33Y 70/00; B33Y 50/02; B29C 71/0009; B29K 2105/04 (86) International application number: PCT/US2023/029975 (87) International publication number: WO 2024/035874 (15.02.2024 Gazette 2024/07)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 10.08.2022 US 202263396648 P (71) Applicant: Interfacial Consultants LLC Prescott, WI 54021-7624 (US)	(72) Inventors: CERNOHOUS, Jeffrey J. Hudson, WI 54016-9214 (US) MAC MURRAY, Benjamin C. Minneapolis, MN 55417-1848 (US) FARREN, Jonathan River Falls, WI 54022-2979 (US) (74) Representative: TLIP Limited  Murgitroyd House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)