(19)

(11)

EP 2 619 294 A2

(12)

(88) Date of publication A3: 07.06.2012 (43) Date of publication: 31.07.2013 Bulletin 2013/31 (21) Application number: 11827435.6 (22) Date of filing: 21.09.2011

(51) International Patent Classification (IPC):  C10M 141/12(2006.01) C10M 125/10(2006.01) C01G 39/00(2006.01) C10M 133/16(2006.01) C10M 125/26(2006.01) (86) International application number: PCT/US2011/052539 (87) International publication number: WO 2012/040319 (29.03.2012 Gazette 2012/13)

(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 (30) Priority: 24.09.2010 US 890310 (71) Applicant: Chevron Oronite Company LLC San Ramon, CA 94583 (US)	(72) Inventors: BHALLA, Gaurav San Ramon California 94583 (US) TSANG, Man Hon 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)