(19)

(11)

EP 1 438 273 A2

(12)

(88) Date of publication A3: 29.04.2004 (43) Date of publication: 21.07.2004 Bulletin 2004/30 (21) Application number: 02772812.0 (22) Date of filing: 03.09.2002

(51) International Patent Classification (IPC)7: C05F 7/00 (86) International application number: PCT/IT2002/000563 (87) International publication number: WO 2003/020651 (13.03.2003 Gazette 2003/11)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 03.09.2001 IT VI20010184 (71) Applicant: Ecodeco SpA 27010 Giussago (IT)	(72) Inventor: CALCATERRA, Enrico I-26845 Codogno (IT) (74) Representative: Forattini, Amelia  c/o Internazionale BrevettiIngg. ZINI, MARANESI & C. S.r.l.Piazza Castello 1 20121 Milano 20121 Milano (IT)