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EP 4 739 736 A1

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(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24768160.4 (22) Date of filing: 28.08.2024

(51) International Patent Classification (IPC):  C08K 3/04(2006.01) C09K 5/10(2006.01) F24D 3/02(2006.01) C09K 5/04(2006.01) C11D 1/82(2006.01) (52) Cooperative Patent Classification (CPC): C09K 5/10; C09K 5/20; C23F 11/181; C23F 11/185; C23F 11/187; C23F 11/141; C23F 11/08 (86) International application number: PCT/GB2024/052241 (87) International publication number: WO 2025/046230 (06.03.2025 Gazette 2025/10)

(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: 29.08.2023 GB 202313080 04.07.2024 GB 202409715 (71) Applicant: Safesold Ltd Tyne and Wear NE33 1RF (GB)	(72) Inventors: WILSON, Robert South Shields Tyne and Wear NE33 1RF (GB) YASEEN, Dr Mohammed South Shields Tyne and Wear NE33 1RF (GB) ELTAYEB, Ahmed South Shields Tyne and Wear NE33 1RF (GB) (74) Representative: Corbyn, David Jonathan  Bailey Walsh & Co LLP 1 York Place Leeds, LS1 2DR Leeds, LS1 2DR (GB)