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EP 4 739 993 A1

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(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24737990.2 (22) Date of filing: 03.07.2024

(51) International Patent Classification (IPC):  G01N 3/08(2006.01) G01N 3/42(2006.01) (52) Cooperative Patent Classification (CPC): G01N 3/08; G01N 2203/0003; G01N 2203/0019; G01N 2203/0078; G01N 2203/0085; G01N 2203/0411; G01N 3/42; G01N 2203/0252; G01N 3/04 (86) International application number: PCT/EP2024/068670 (87) International publication number: WO 2025/008374 (09.01.2025 Gazette 2025/02)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 05.07.2023 EP 23183691 (71) Applicant: ROCKWOOL A/S 2640 Hedehusene (DK)	(72) Inventors: SOPREK, David 2640 Hedehusene (DK) ALVES, João 2640 Hedehusene (DK) JENSEN, Pernille Søgaard 2640 Hedehusene (DK) (74) Representative: Gill Jennings & Every LLP  The Broadgate Tower 20 Primrose Street London EC2A 2ES London EC2A 2ES (GB)