(19)

(11)

EP 1 085 940 A1

(12)

(43) Date of publication: 28.03.2001 Bulletin 2001/13 (21) Application number: 99924314.0 (22) Date of filing: 19.05.1999

(51) International Patent Classification (IPC)7: B01J 2/00, A23G 3/20, B01J 13/04 (86) International application number: PCT/US9910/949 (87) International publication number: WO 9961/145 (02.12.1999 Gazette 1999/48)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU NL SE (30) Priority: 22.05.1998 IE 980395 10.05.1999 US 309224 (71) Applicant: Biovail International Limited Dublin 18 (IE)	(72) Inventors: CHERUKURI, Subraman, R. Vienna, VA 22182 (US) SIRIS, Supapong Chantilly, VA 20151 (US) (74) Representative: McCarthy, Denis Alexis et al MacLachlan & Donaldson47 Merrion Square Dublin 2 Dublin 2 (IE)