(19)
(11) EP 4 798 828 A1

(12)

(43) Date of publication:
02.09.2026 Bulletin 2026/36

(21) Application number: 24801830.1

(22) Date of filing: 21.10.2024
(51) International Patent Classification (IPC): 
F01D 5/28(2006.01)
F01D 25/00(2006.01)
(52) Cooperative Patent Classification (CPC):
F01D 5/288; F05D 2300/6033; F01D 5/284; F05D 2300/15; F05D 2300/222; F01D 25/005
(86) International application number:
PCT/EP2024/000056
(87) International publication number:
WO 2025/087555 (01.05.2025 Gazette 2025/18)
(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: 24.10.2023 DE 102023129281

(71) Applicant: Oerlikon Surface Solutions AG, Pfäffikon
8808 Pfäffikon (CH)

(72) Inventors:
  • RAMM Juergen
    7304 Maienfeld (CH)
  • WIDRIG Beno
    7310 Bad Ragaz (CH)
  • DIANYING, Chen
    Westbury, NY 11590 (US)

(74) Representative: Misselhorn, Hein-Martin 
Patent- und Rechtsanwalt Am Stein 10
85049 Ingolstadt
85049 Ingolstadt (DE)

   


(54) MULTILAYER ENVIRONMENTAL BARRIER COATINGS