(19)

(11)

EP 2 254 976 A1

(12)

(43) Date of publication: 01.12.2010 Bulletin 2010/48 (21) Application number: 09723271.4 (22) Date of filing: 13.03.2009

(51) International Patent Classification (IPC):  C10L 1/02(2006.01) C07C 43/00(2006.01) C10L 1/18(2006.01) C07C 43/02(2006.01) (86) International application number: PCT/EP2009/001920 (87) International publication number: WO 2009/115274 (24.09.2009 Gazette 2009/39)

(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 TR Designated Extension States: AL BA RS (30) Priority: 18.03.2008 IT MI20080459 (71) Applicant: ENI S.p.A. 00144 Rome (IT)	(72) Inventors: PEREGO, Carlo I-20040 Carnate (MI) (IT) BIANCHI, Daniele I -20020 Arese (MI) (IT) FORNAROLI, Marco I-20157 Milan (IT) BATTISTEL, Ezio I-28060 Cameriano (NO) (IT) (74) Representative: De Gregori, Antonella et al Ing. Barzano' & Zanardo Milano S.p.A. Via Borgonuovo 10 20121 Milano 20121 Milano (IT)