(19)

(11)

EP 4 387 477 A1

(12)

(43) Date of publication: 26.06.2024 Bulletin 2024/26 (21) Application number: 22765594.1 (22) Date of filing: 17.08.2022

(51) International Patent Classification (IPC):  A24D 3/17(2020.01) A24D 3/06(2006.01) (52) Cooperative Patent Classification (CPC): A24D 3/061; A24D 3/10; A24D 1/20 (86) International application number: PCT/GB2022/052138 (87) International publication number: WO 2023/021292 (23.02.2023 Gazette 2023/08)

(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 (30) Priority: 18.08.2021 GB 202111826 (71) Applicant: Filtrona Development Co. Pte. Ltd. Singapore 068877 (SG)	(72) Inventors: ALEXANDER, Boby Sidoarjo, 61256 (ID) RAHMAN, Arief Sidoarjo, 61256 (ID) (74) Representative: Ryder, Tessa Louise Harriet  Reddie & Grose LLP The White Chapel Building 10 Whitechapel High Street London E1 8QS London E1 8QS (GB)