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EP 4 412 814 A1

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(43) Date of publication: 14.08.2024 Bulletin 2024/33 (21) Application number: 21801774.7 (22) Date of filing: 08.10.2021

(51) International Patent Classification (IPC):  B29C 48/31(2019.01) B29C 48/08(2019.01) B29C 48/07(2019.01) B29C 48/30(2019.01) B29C 48/92(2019.01) (52) Cooperative Patent Classification (CPC): B29C 48/3001; B29C 48/313; B29C 48/92; B29C 48/08; B29C 48/07 (86) International application number: PCT/US2021/054108 (87) International publication number: WO 2023/059333 (13.04.2023 Gazette 2023/15)

(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 (71) Applicant: 3M Innovative Properties Company Saint Paul, Minnesota 55133-3427 (US)

(72) Inventors: YAPEL, Robert A. Saint Paul, Minnesota 55133-3427 (US) TRICE, Jennifer L. Saint Paul, Minnesota 55133-3427 (US) ROTHER, Jeremy Saint Paul, Minnesota 55133-3427 (US) REHKAMP, Brandon A. Saint Paul, Minnesota 55133-3427 (US) RADEWALD, Vern E. Saint Paul, Minnesota 55133-3427 (US) LOUKUSA, Pentti K. Saint Paul, Minnesota 55133-3427 (US) KOPECKY, William J. Saint Paul, Minnesota 55133-3427 (US) JANSEN, Charles E. Saint Paul, Minnesota 55133-3427 (US) DEHN, Derek J. Saint Paul, Minnesota 55133-3427 (US) CILISKE, Scott L. Saint Paul, Minnesota 55133-3427 (US) ALMEIDA, David Saint Paul, Minnesota 55133-3427 (US) (74) Representative: Vossius & Partner Patentanwälte Rechtsanwälte mbB  Siebertstraße 4 81675 München 81675 München (DE)