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EP 3 887 108 A2

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(88) Date of publication A3: 23.07.2020 (43) Date of publication: 06.10.2021 Bulletin 2021/40 (21) Application number: 19817803.0 (22) Date of filing: 29.11.2019

(51) International Patent Classification (IPC):  B27K 3/02(2006.01) B32B 21/00(2006.01) E04F 15/00(2006.01) B27K 3/50(2006.01) C08L 91/00(2006.01) (52) Cooperative Patent Classification (CPC): B32B 2605/00; B32B 5/022; B27K 3/50; B32B 2307/50; B32B 21/042; B32B 2260/026; B27K 2200/30; B27K 3/0278; B32B 21/10; B32B 21/14; B32B 2471/00; B32B 2260/046; C09D 191/00 (86) International application number: PCT/FI2019/050856 (87) International publication number: WO 2020/109669 (04.06.2020 Gazette 2020/23)

(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: 30.11.2018 FI 20186031 (71) Applicant: Metsäliitto Osuuskunta 02100 Espoo (FI)	(72) Inventors: SOKKA, Kasperi 44200 Suolahti (FI) EKMAN, Jussi 44200 Suolahti (FI) HINTIKKA, Milla 44200 Suolahti (FI) (74) Representative: Laine IP Oy  Porkkalankatu 24 00180 Helsinki 00180 Helsinki (FI)