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(11)

EP 4 072 854 A1

(12)

(43) Date of publication: 19.10.2022 Bulletin 2022/42 (21) Application number: 20833734.5 (22) Date of filing: 10.12.2020

(51) International Patent Classification (IPC):  B32B 21/13(2006.01) B32B 3/18(2006.01) B32B 7/03(2019.01) B32B 21/14(2006.01) B32B 3/14(2006.01) B32B 3/26(2006.01) B32B 7/12(2006.01) B27N 9/00(2006.01) (52) Cooperative Patent Classification (CPC): B32B 7/12; B32B 21/13; B32B 21/14; B32B 2307/3065; B32B 2307/732; B32B 2307/708; B32B 2607/00; B32B 3/263; B32B 3/14; B32B 3/18; B27N 9/00; B32B 7/03; E04C 2/12 (86) International application number: PCT/EP2020/085572 (87) International publication number: WO 2021/116305 (17.06.2021 Gazette 2021/24)

(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: 11.12.2019 NO 20191468 (71) Applicant: FSS TRE AS 7025 Trondheim (NO)	(72) Inventors: JENSEN, Geir 7025 Trondheim (NO) JENSEN, Alexander 4345 Bryne (NO) (74) Representative: Onsagers AS  P.O. Box 1813 Vika 0123 Oslo 0123 Oslo (NO)