(19)

(11)

EP 4 493 400 A1

(12)

(43) Date of publication: 22.01.2025 Bulletin 2025/04 (21) Application number: 23710823.8 (22) Date of filing: 06.03.2023

(51) International Patent Classification (IPC):  B32B 1/08(2006.01) B32B 25/08(2006.01) B32B 25/14(2006.01) B32B 25/04(2006.01) B32B 25/10(2006.01) F16L 11/08(2006.01) (52) Cooperative Patent Classification (CPC): B32B 1/08; B32B 25/14; B32B 25/042; B32B 25/04; B32B 25/08; B32B 25/10; B32B 2305/08; B32B 2307/7265; B32B 2597/00; F16L 11/045 (86) International application number: PCT/EP2023/055632 (87) International publication number: WO 2023/174734 (21.09.2023 Gazette 2023/38)

(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 (30) Priority: 14.03.2022 US 202263319417 P (71) Applicant: ContiTech Techno-Chemie GmbH 61184 Karben (DE)	(72) Inventors: SABO, Lorraine Vander Wielen 44333 Fairlawn (US) HAINES, Bradley James 44333 Fairlawn (US) (74) Representative: Continental Corporation  c/o Continental AG Intellectual Property Postfach 169 30001 Hannover 30001 Hannover (DE)