(19)

(11)

EP 1 466 020 A1

(12)

(43) Date of publication: 13.10.2004 Bulletin 2004/42 (21) Application number: 02712252.2 (22) Date of filing: 15.01.2002

(51) International Patent Classification (IPC)7: C14C 9/00, C14C 11/00 (86) International application number: PCT/IT2002/000016 (87) International publication number: WO 2003/060166 (24.07.2003 Gazette 2003/30)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (71) Applicants: Conciaricerca Italia S.r.l. 20123 Milano (IT) Universita' Degli Studi Di Milano - Bicocca 20126 Milan (IT)	(72) Inventors: Siena, Alessandra 20052 Monza (IT) Riccardi, ClaudiaUniversita Degli Studi di Milano 20126 Milano (IT) (74) Representative: Long, Giorgio  Jacobacci & Partners S.p.A.Via Senato, 8 20121 Milano 20121 Milano (IT)