(19)

(11)

EP 0 649 403 A1

(12)

(43) Date of publication: 26.04.1995 Bulletin 1995/17 (21) Application number: 93903748.0 (22) Date of filing: 18.02.1993

(51) International Patent Classification (IPC):  B01J 27/ 057( . ) C07C 323/ 12( . ) C07C 319/ 24( . ) (86) International application number: PCT/CA1993/000055 (87) International publication number: WO 1994/000427 (06.01.1994 Gazette 1994/02)

(84) Designated Contracting States: DE FR GB (30) Priority: 29.06.1992 CA 19922072763 (71) Applicant: CHAUDHRY, Omar Aylmer, Quebec J9H 1G7 (CA)	(72) Inventor: CHAUDHRY, Omar Aylmer, Quebec J9H 1G7 (CA) (74) Representative: Pawloy, Peter Michael, et al  Patentanwälte Sonn, Pawloy, Weinzinger & Wolfram Riemergasse 14 A-1010 Wien A-1010 Wien (AT)