(19)

(11)

EP 2 201 089 A2

(12)

(88) Date of publication A3: 16.07.2009 (43) Date of publication: 30.06.2010 Bulletin 2010/26 (21) Application number: 08802834.5 (22) Date of filing: 07.10.2008

(51) International Patent Classification (IPC):  C10M 159/20(2006.01) C10M 159/24(2006.01) C10M 129/42(2006.01) C10M 135/10(2006.01) C07C 51/41(2006.01) C10M 169/04(2006.01) C10M 129/40(2006.01) C10M 159/22(2006.01) C10M 177/00(2006.01) C10M 129/54(2006.01) C10M 135/30(2006.01) C10M 163/00(2006.01) C10M 129/10(2006.01) (86) International application number: PCT/EP2008/008509 (87) International publication number: WO 2009/046976 (16.04.2009 Gazette 2009/16)

(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 MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 09.10.2007 IT MI20071953 (71) Applicant: ENI S.p.A. 00144 Rome (IT)	(72) Inventors: NOTARI, Marcello I-43100 Parma (IT) D'ELIA, Luigi I-26025 Pandino (IT) PIANTA, Orazio I-20010 Santo Stefano Ticino (IT) MANNI, Massimo I-20097 San Donato Milanese (IT) (74) Representative: De Gregori, Antonella  Ing. Barzano' & Zanardo Milano S.p.A. Via Borgonuovo 10 20121 Milano 20121 Milano (IT)