(19)

(11)

EP 1 220 623 A1

(12)

(43) Date of publication: 10.07.2002 Bulletin 2002/28 (21) Application number: 00971315.7 (22) Date of filing: 29.09.2000

(51) International Patent Classification (IPC)7: A23N 12/02 (86) International application number: PCT/EP0009/672 (87) International publication number: WO 0126/489 (19.04.2001 Gazette 2001/16)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 14.10.1999 NL 1013291 (71) Applicant: Backus Sormac B.V. 5916 PN Venlo (NL)	(72) Inventor: BACKUS, Stephanus, Michael, Marie NL-5913 VH Venlo (NL) (74) Representative: Bleukx, Lucas Lodewijk M.  Hydro S.A.Avenue Marcel Thiry 83 1200 Bruxelles 1200 Bruxelles (BE)