(19)

(11)

EP 1 274 653 A1

(12)

(43) Date of publication: 15.01.2003 Bulletin 2003/03 (21) Application number: 01916823.6 (22) Date of filing: 30.03.2001

(51) International Patent Classification (IPC)7: C02F 3/04 (86) International application number: PCT/CA0100/436 (87) International publication number: WO 0107/7032 (18.10.2001 Gazette 2001/42)

(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 (30) Priority: 10.04.2000 CA 2304935 (71) Applicant: Le Groupe Berger Ltée/Berger Group Ltd. St-Modeste,Québec G0L 3W0 (CA)	(72) Inventor: BELHUMEUR, Albert Orford, Québec J1X 6Z2 (CA) (74) Representative: Casalonga, Axel et al BUREAU D.A. CASALONGA - JOSSEPaul-Heyse-Strasse 33 80336 München 80336 München (DE)