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EP 3 645 233 A1

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(43) Date of publication: 06.05.2020 Bulletin 2020/19 (21) Application number: 17915327.5 (22) Date of filing: 28.06.2017

(51) International Patent Classification (IPC):  B29C 41/20(2006.01) B32B 27/04(2006.01) C09J 129/04(2006.01) B29C 67/00(2017.01) C25D 3/22(2006.01) (86) International application number: PCT/US2017/039610 (87) International publication number: WO 2019/005022 (03.01.2019 Gazette 2019/01)

(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: MA MD (71) Applicant: 3M Innovative Properties Company St. Paul, MN 55133-3427 (US)

(72) Inventors: FRANKE, Carsten Saint Paul, Minnesota 55104 (US) DINGELDEIN, Joseph C. Saint Paul, Minnesota 55133-3427 (US) ESCH, Jay A. Saint Paul, Minnesota 55133-3427 (US) SMITHSON, Robert L.W. Saint Paul, Minnesota 55133-3427 (US) SETH, Jayshree Saint Paul, Minnesota 55133-3427 (US) BENSON, Olester Jr. Saint Paul, Minnesota 55133-3427 (US) CALVERLEY, Karen J. Saint Paul, Minnesota 55133-3427 (US) HUFFMAN, Alexander J. Saint Paul, Minnesota 55133-3427 (US) YURT, Serkan Saint Paul, Minnesota 55133-3427 (US) NIKNEZHAD, Setareh Saint Paul, Minnesota 55133-3427 (US) KROPP, Michael A. Saint Paul, Minnesota 55133-3427 (US) BAETZOLD, John P. Saint Paul, Minnesota 55133-3427 (US) (74) Representative: Mathys & Squire  Mathys & Squire Europe LLP Theatinerstraße 7 80333 München 80333 München (DE)