(19)

(11)

EP 4 824 314 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24904936.2 (22) Date of filing: 13.12.2024

(51) International Patent Classification (IPC):  C23C 14/34(2006.01) C22C 14/00(2006.01) C22C 27/04(2006.01) (52) Cooperative Patent Classification (CPC): H01J 2237/332; B23K 2103/08; H01J 37/3426; B23K 20/021; H01J 37/3491; C23C 14/3407; C23C 14/3414 (86) International application number: PCT/US2024/059951 (87) International publication number: WO 2025/128940 (19.06.2025 Gazette 2025/25)

(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: 15.12.2023 US 202363610598 P 10.12.2024 US 202418975119 (71) Applicant: Solstice Advanced Materials US Inc. Morris Plains, New Jersey 07950 (US)	(72) Inventors: WU, Xiaodan Charlotte, NC 28202 (US) KIM, Jaeyeon Charlotte, NC 28202 (US) STROTHERS, Susan, D. Charlotte, NC 28202 (US) MOHANTY, Rashmi Charlotte, NC 28202 (US) IM, Alicia Charlotte, NC 28202 (US) (74) Representative: Withers & Rogers  2 London Bridge London SE1 9RA London SE1 9RA (GB)