(19)

(11)

EP 1 265 712 A1

(12)

(43) Date of publication: 18.12.2002 Bulletin 2002/51 (21) Application number: 01914038.3 (22) Date of filing: 23.03.2001

(51) International Patent Classification (IPC)7: B01L 7/00, B01F 13/08, B01L 3/00 (86) International application number: PCT/GB0101/284 (87) International publication number: WO 0107/2424 (04.10.2001 Gazette 2001/40)

(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: 24.03.2000 GB 0007219 (71) Applicant: BJS Company Ltd. Perivale, Greenford, Middlesex UB6 7PP (GB)	(72) Inventor: Gunter, Ian Alan StanmoreMiddlesex HA7 4EL (GB) (74) Representative: Faulkner, Thomas John et al fJ Cleveland,40-43 Chancery Lane London WC2A 1JQ London WC2A 1JQ (GB)