(19)

(11)

EP 1 828 358 A2

(12)

(88) Date of publication A3: 22.03.2007 (43) Date of publication: 05.09.2007 Bulletin 2007/36 (21) Application number: 05858294.1 (22) Date of filing: 04.11.2005

(51) International Patent Classification (IPC):  C10M 141/10(2006.01) C10M 129/76(2006.01) (86) International application number: PCT/US2005/039765 (87) International publication number: WO 2007/001444 (04.01.2007 Gazette 2007/01)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK YU (30) Priority: 04.11.2004 US 625416 P (71) Applicant: Pratt & Whitney East Hartford, CT 06108 (US)	(72) Inventors: WEN, Hongmei South Windsor, CT 06074 (US) COOPER, Clark, V. Glastonbury, CT 06033 (US) (74) Representative: Klunker . Schmitt-Nilson . Hirsch  Winzererstraße 106 D-80797 München D-80797 München (DE)