(19)

(11)

EP 4 514 925 A1

(12)

(43) Date of publication: 05.03.2025 Bulletin 2025/10 (21) Application number: 23722019.9 (22) Date of filing: 26.04.2023

(51) International Patent Classification (IPC):  C10L 1/22(2006.01) C10L 1/238(2006.01) C10L 10/04(2006.01) C10L 10/08(2006.01) C10L 1/222(2006.01) C10L 1/232(2006.01) C10L 1/2383(2006.01) C10L 10/06(2006.01) C10L 10/14(2006.01) C10L 10/18(2006.01) (52) Cooperative Patent Classification (CPC): C10L 1/22; C10L 10/04; C10L 10/18; C10L 1/221; C10L 1/232; C10L 1/2222; C10L 1/2383; C10L 1/238; C10L 10/06; C10L 10/08; C10L 2230/22; C10L 2270/026; C10L 2300/20 (86) International application number: PCT/GB2023/051106 (87) International publication number: WO 2023/209370 (02.11.2023 Gazette 2023/44)

(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: KH MA MD TN (30) Priority: 26.04.2022 GB 202206069 (71) Applicant: Innospec Limited Ellesmere Port, Cheshire CH65 4EY (GB)	(72) Inventors: COOK, Steve Ellesmere Port Cheshire CH65 4EY (GB) ROSS, Alan Ellesmere Port Cheshire CH65 4EY (GB) (74) Representative: Appleyard Lees IP LLP  15 Clare Road Halifax HX1 2HY Halifax HX1 2HY (GB)