(19)

(11)

EP 4 739 755 A1

(12)

(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24743469.9 (22) Date of filing: 05.07.2024

(51) International Patent Classification (IPC):  C10L 1/22(2006.01) C10L 1/232(2006.01) C10L 1/2383(2006.01) C10L 10/02(2006.01) C10L 1/188(2006.01) C10L 1/222(2006.01) C10L 1/238(2006.01) C10L 1/2387(2006.01) C10L 10/18(2006.01) C10L 1/189(2006.01) (52) Cooperative Patent Classification (CPC): C10L 1/238; C10L 1/2383; C10L 1/2387; C10L 1/221; C10L 1/2222; C10L 1/2225; C10L 1/232; C10L 1/1881; C10L 1/1883; C10L 1/1895; C10L 1/189; C10L 10/02; C10L 10/18; C10L 2200/0423; C10L 2250/06; C10L 2270/023; C10L 2290/60 (86) International application number: PCT/GB2024/051773 (87) International publication number: WO 2025/008645 (09.01.2025 Gazette 2025/02)

(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: 06.07.2023 GB 202310396 11.07.2023 GB 202310638 (71) Applicant: Innospec Limited Ellesmere Port, Cheshire CH65 4EY (GB)	(72) Inventors: KNIGHT, Peter Ellesmere Port Cheshire CH65 4EY (GB) BROOM, Nigel Ellesmere Port Cheshire CH65 4EY (GB) (74) Representative: Appleyard Lees IP LLP  G Mill Dean Clough Industrial Park Halifax HX3 5AH Halifax HX3 5AH (GB)