(19)

(11)

EP 1 685 072 A1

(12)

(43) Date of publication: 02.08.2006 Bulletin 2006/31 (21) Application number: 03772663.5 (22) Date of filing: 15.10.2003

(51) International Patent Classification (IPC):  C02F 9/00(2006.01) (86) International application number: PCT/IT2003/000630 (87) International publication number: WO 2004/035488 (29.04.2004 Gazette 2004/18)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR (30) Priority: 15.10.2002 IT RM20020523 (71) Applicant: Euroeco S.p.a. 00184 Roma (IT)	(72) Inventors: BLASI, Oronzo I-00165 Roma (IT) PICCOLI, Massimo I-00198 Roma (IT)