(19)

(11)

EP 2 398 878 A2

(12)

(88) Date of publication A3: 18.11.2010 (43) Date of publication: 28.12.2011 Bulletin 2011/52 (21) Application number: 10744247.7 (22) Date of filing: 17.02.2010

(51) International Patent Classification (IPC):  C10M 141/12(2006.01) F01N 3/00(2006.01) C10M 169/04(2006.01) C10N 40/25(2006.01) (86) International application number: PCT/US2010/024460 (87) International publication number: WO 2010/096472 (26.08.2010 Gazette 2010/34)

(84) Designated Contracting States: 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 SE SI SK SM TR (30) Priority: 18.02.2009 US 378678 (71) Applicant: Chevron Oronite Company LLC San Ramon, CA 94583 (US)	(72) Inventors: TOBIAS, Melanie F. Pleasant Hill California 94523 (US) VON STADEN, Jon F. San Antonio Texas 78254 (US) (74) Representative: Nash, David Allan  Haseltine Lake LLP Redcliff Quay 120 Redcliff Street Bristol BS1 6HU Bristol BS1 6HU (GB)