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EP 4 536 467 A1

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(43) Date of publication: 16.04.2025 Bulletin 2025/16 (21) Application number: 23731615.3 (22) Date of filing: 07.06.2023

(51) International Patent Classification (IPC):  B29C 64/10(2017.01) E04B 1/66(2006.01) B33Y 50/00(2015.01) B29C 64/386(2017.01) B33Y 10/00(2015.01) (52) Cooperative Patent Classification (CPC): C21B 3/04; B29C 64/10; B29C 64/106; B29C 64/386; B33Y 80/00; B33Y 10/00; B33Y 50/00; B33Y 70/00; E04B 1/66 (86) International application number: PCT/EP2023/065250 (87) International publication number: WO 2023/237611 (14.12.2023 Gazette 2023/50)

(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: 09.06.2022 EP 22178195 (71) Applicant: Sika Technology AG 6340 Baar (CH)	(72) Inventors: Z'ROTZ, Roy 6038 Honau (CH) HUEPPI, Patrick 6063 Stalden (CH) CARL, Wilfried 8280 Kreuzlingen (CH) ACKERMANN, Herbert 8632 Tann (CH) (74) Representative: Sika Patent Attorneys  C/o Sika Technology AG Corp. IP Dept. Tüffenwies 16 8048 Zürich 8048 Zürich (CH)