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(11)

EP 4 291 392 A1

(12)

(43) Date of publication: 20.12.2023 Bulletin 2023/51 (21) Application number: 22705116.6 (22) Date of filing: 10.02.2022

(51) International Patent Classification (IPC):  B29C 65/48(2006.01) B29L 31/08(2006.01) B29K 309/08(2006.01) F03D 1/06(2006.01) B29K 307/04(2006.01) (52) Cooperative Patent Classification (CPC): B29L 2031/085; B29L 2031/082; B29C 66/61; B29C 66/636; B29C 66/721; B29C 66/7212; B29C 65/4835; B29C 66/9121; F03D 1/0675; B29C 66/524; B29C 66/131; B29C 66/112; B29C 66/543; B29C 66/1122; B29C 66/342; F05B 2230/604; B29C 66/92615; B29C 66/92311   C-Sets: B29C 66/7212, B29K 2307/04; B29C 66/7212, B29K 2309/08; (86) International application number: PCT/GB2022/050362 (87) International publication number: WO 2022/172011 (18.08.2022 Gazette 2022/33)

(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: 12.02.2021 GB 202101990 (71) Applicant: DFS Composites Limited Lee-On-The-Solent, Hampshire PO13 9GW (GB)	(72) Inventors: BADEA, Gabriel Hampshire PO13 9GW (GB) BAILES, David Frank Hampshire PO13 9GW (GB) RIMMER, John George Hampshire SO17 2LS (GB) (74) Representative: Barker Brettell LLP  100 Hagley Road Edgbaston Birmingham, West Midlands B16 8QQ Birmingham, West Midlands B16 8QQ (GB)