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EP 4 561 955 A1

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(43) Date of publication: 04.06.2025 Bulletin 2025/23 (21) Application number: 22797639.6 (22) Date of filing: 29.09.2022

(51) International Patent Classification (IPC):  C04B 18/04(2006.01) C04B 28/02(2006.01) C04B 18/20(2006.01) (52) Cooperative Patent Classification (CPC): C04B 2111/00672; C04B 18/20; C04B 18/0481; C04B 28/02; Y02W 30/91   C-Sets: C04B 28/02, C04B 14/041, C04B 14/06, C04B 14/106, C04B 14/26, C04B 14/28, C04B 18/20, C04B 20/008, C04B 24/2623, C04B 40/0608; C04B 28/02, C04B 14/041, C04B 14/06, C04B 14/106, C04B 14/26, C04B 14/28, C04B 18/20, C04B 20/008, C04B 24/2641, C04B 40/0608, C04B 2103/406; C04B 28/02, C04B 14/041, C04B 14/06, C04B 14/106, C04B 14/26, C04B 14/28, C04B 18/20, C04B 20/008, C04B 24/2676, C04B 40/0608; (86) International application number: PCT/CN2022/122457 (87) International publication number: WO 2024/065360 (04.04.2024 Gazette 2024/14)

(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 (71) Applicant: Dow Global Technologies LLC Midland, MI 48674 (US)	(72) Inventors: LI, Jian Shanghai 201203 (CN) GUO, Kunpeng Shanghai 201203 (CN) FENG, Shaoguang Shanghai 201203 (CN) GENG, Xiang Shanghai 201203 (CN) (74) Representative: Beck Greener LLP  Fulwood House 12 Fulwood Place London WC1V 6HR London WC1V 6HR (GB)