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EP 4 118 129 A1

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(43) Date of publication: 18.01.2023 Bulletin 2023/03 (21) Application number: 21768868.8 (22) Date of filing: 25.02.2021

(51) International Patent Classification (IPC):  C08G 18/32(2006.01) C08L 75/04(2006.01) C08J 5/06(2006.01) C08G 18/64(2006.01) C08L 97/02(2006.01) (52) Cooperative Patent Classification (CPC): C08L 97/02; C08G 18/7664; C08G 18/4829; C08G 18/225; C08G 18/2036; C08G 18/163; C08G 18/6492; C08G 18/4081; C08G 2110/005; C08G 2110/0058; C08J 9/141; C08J 9/146; C08J 2203/142; C08J 2375/04; C08J 2203/14; C08J 9/0061; C08J 2497/02 (86) International application number: PCT/PL2021/000011 (87) International publication number: WO 2021/182980 (16.09.2021 Gazette 2021/37)

(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: 10.03.2020 PL 43319020 (71) Applicant: Politechnika Gdanska 80-233 Gdansk (PL)	(72) Inventors: PISZCZYK, Lukasz 80-180 Gdansk (PL) KOSMELA, Paulina 89-100 Naklo nad Noticia (PL) HAPONIUK, Józef 80-344 Gdansk (PL)