(19)

(11)

EP 4 770 958 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24822082.4 (22) Date of filing: 22.11.2024

(51) International Patent Classification (IPC):  C01B 33/157(2006.01) (52) Cooperative Patent Classification (CPC): C01B 33/157 (86) International application number: PCT/US2024/057025 (87) International publication number: WO 2026/111730 (28.05.2026 Gazette 2026/22)

(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: 19.11.2024 CN 202411657775 (71) Applicant: Owens Corning Intellectual Capital, LLC Toledo, OH 43659 (US)	(72) Inventor: The designation of the inventor has not yet been filed  () (74) Representative: Lawrie IP Limited  10 Bothwell Street Glasgow G2 6LU Glasgow G2 6LU (GB)