(19)

(11)

EP 4 087 676 A1

(12)

(43) Date of publication: 16.11.2022 Bulletin 2022/46 (21) Application number: 21701426.5 (22) Date of filing: 15.01.2021

(51) International Patent Classification (IPC):  B01J 13/16(2006.01) A23P 10/30(2016.01) A61K 9/48(2006.01) D06M 23/12(2006.01) A01N 25/28(2006.01) A61K 8/11(2006.01) C11D 3/50(2006.01) (52) Cooperative Patent Classification (CPC): B01J 13/16; A01N 25/28; A61K 8/11; A23P 10/30; D06M 23/12; A61K 9/5031; D06M 13/005; D06M 16/00; D06M 15/564; D06M 15/643; D06M 15/263; D06M 15/03; A61Q 19/00; A61K 2800/10; A61K 2800/412; A61K 8/90; A61K 8/87; A61K 8/0208 (86) International application number: PCT/EP2021/050862 (87) International publication number: WO 2021/144454 (22.07.2021 Gazette 2021/29)

(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: 16.01.2020 EP 20152249 (71) Applicant: EMPA Eidgenössische Materialprüfungs- und Forschungsanstalt 8600 Dübendorf (CH)	(72) Inventors: LUISIER, Nicolas 9012 St. Gallen (CH) FORTUNATO, Giuseppino 9000 St. Gallen (CH) TONCELLI, Claudio 9014 St. Gallen (CH) (74) Representative: E. Blum & Co. AG  Patent- und Markenanwälte VSP Vorderberg 11 8044 Zürich 8044 Zürich (CH)