(19)

(11)

EP 4 739 719 A1

(12)

(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 23944060.5 (22) Date of filing: 06.07.2023

(51) International Patent Classification (IPC):  C08F 220/18(2006.01) C08F 220/28(2006.01) C08F 220/06(2006.01) (52) Cooperative Patent Classification (CPC): C08F 220/1802; C08F 2/001; C08F 2/26   C-Sets: C08F 220/1802, C08F 220/286, C08F 220/06, C08F 220/286, C08F 220/06, C08F 216/125; (86) International application number: PCT/CN2023/106019 (87) International publication number: WO 2025/007330 (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: KH MA MD TN (71) Applicants: DOW GLOBAL TECHNOLOGIES LLC Midland, MI 48674 (US) Rohm and Haas Company Collegeville, PA 19106 (US)	(72) Inventors: ZENG, Fanwen Collegeville, PA 19426 (US) ZHANG, Shiling Shanghai 201203 (CN) SHULMAN, Inna Collegeville, PA 19426 (US) LU, Xiadong Collegeville, PA 19426 (US) O'CONNOR, Ying Collegeville, PA 19426 (US) (74) Representative: Beck Greener LLP  Fulwood House 12 Fulwood Place London WC1V 6HR London WC1V 6HR (GB)