(19)

(11)

EP 2 938 713 A2

(12)

(88) Date of publication A3: 23.10.2014 (43) Date of publication: 04.11.2015 Bulletin 2015/45 (21) Application number: 13867703.4 (22) Date of filing: 22.11.2013

(51) International Patent Classification (IPC):  C10M 129/34(2006.01) (86) International application number: PCT/US2013/071503 (87) International publication number: WO 2014/105311 (03.07.2014 Gazette 2014/27)

(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 (30) Priority: 28.12.2012 US 201213729465 (71) Applicants: Chevron Oronite Company LLC San Ramon, CA 94583 (US) Chevron Japan Ltd. Tokyo 105-6218 (JP)	(72) Inventors: UMEHARA, Katsumi San Ramon, California 94583 (US) VAN DAM, Willem San Ramon, California 94583 (US) (74) Representative: Nash, David Allan  Haseltine Lake LLP Redcliff Quay 120 Redcliff Street Bristol BS1 6HU Bristol BS1 6HU (GB)