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(11)

EP 3 884 016 A1

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(43) Date of publication: 29.09.2021 Bulletin 2021/39 (21) Application number: 19835960.6 (22) Date of filing: 06.11.2019

(51) International Patent Classification (IPC):  C10M 137/02(2006.01) (52) Cooperative Patent Classification (CPC): C10N 2030/54; C10N 2030/56; C10M 137/02; C10N 2040/02; C10N 2030/06; C10M 2219/106; C10M 2207/289; C10M 2223/047; C10M 2223/04; C10M 2205/02; C10M 2223/043; C10M 2215/28; C10N 2040/04; C10M 2223/045; C10M 2205/0285; C10M 2215/223; C10M 2219/022   C-Sets: C10M 2223/045, C10N 2010/04; (86) International application number: PCT/US2019/060013 (87) International publication number: WO 2020/101969 (22.05.2020 Gazette 2020/21)

(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: 12.11.2018 US 201862758729 P (71) Applicant: The Lubrizol Corporation Wickliffe, Ohio 44092-2298 (US)	(72) Inventor: BARTON, William R.S. Belper Derbyshire DE56 1QN (GB) (74) Representative: D Young & Co LLP  120 Holborn London EC1N 2DY London EC1N 2DY (GB)