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EP 4 330 586 A1

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(43) Date of publication: 06.03.2024 Bulletin 2024/10 (21) Application number: 22825460.3 (22) Date of filing: 15.06.2022

(51) International Patent Classification (IPC):  F16L 47/00(2006.01) F16L 43/00(2006.01) B29C 45/16(2006.01) F16L 37/00(2006.01) B29C 45/14(2006.01) B29C 49/22(2006.01) (52) Cooperative Patent Classification (CPC): B29C 45/16; F16L 43/008; F28F 9/264 (86) International application number: PCT/TR2022/050595 (87) International publication number: WO 2022/265609 (22.12.2022 Gazette 2022/51)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 16.06.2021 TR 202109820 (71) Applicant: SERDAR PLASTIK SANAYI VE TICARET A.S. 06935 Sincan/Ankara (TR)	(72) Inventor: TÜTEK, Mustafa Serdar 06935 Sincan/Ankara (TR) (74) Representative: Weickmann & Weickmann PartmbB  Postfach 860 820 81635 München 81635 München (DE)