(19)

(11)

EP 4 816 142 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 25710098.2 (22) Date of filing: 19.02.2025

(51) International Patent Classification (IPC):  B29C 44/06(2006.01) B32B 5/24(2006.01) B29C 44/36(2006.01) B29C 70/30(2006.01) B29L 9/00(2006.01) B29K 21/00(2006.01) B32B 5/18(2006.01) E04C 2/20(2006.01) B29C 44/40(2006.01) B29L 7/00(2006.01) B29L 31/10(2006.01) (52) Cooperative Patent Classification (CPC): B29C 44/06; B29L 2007/002; B29L 2009/00; B29L 2031/10; B32B 5/18; B32B 5/245; B29K 2021/00; B29C 44/367; B29C 44/40; B29C 70/305; E04C 2/205; E04C 2/324; E04C 2/50 (86) International application number: PCT/GB2025/050319 (87) International publication number: WO 2025/176986 (28.08.2025 Gazette 2025/35)

(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: 20.02.2024 GB 202402399 (71) Applicant: ELMDENE GROUP LIMITED Scimitar Way Coventry West Midlands CV3 4GA (GB)	(72) Inventor: DOUGLASS, Harvey James Coventry West Midlands CV3 4GA (GB) (74) Representative: ip21 Ltd  Central Formalities Department Suite 2 The Old Dairy Elm Farm Business Park Wymondham Norwich, Norfolk NR18 0SW Norwich, Norfolk NR18 0SW (GB)