(19)

(11)

EP 0 733 032 A1

(12)

(43) Date of publication: 25.09.1996 Bulletin 1996/39 (21) Application number: 94930870.0 (22) Date of filing: 21.10.1994

(51) International Patent Classification (IPC):  B01J 23/ 04( . ) B01J 23/ 10( . ) B01J 23/ 85( . ) C07B 61/ 00( . ) C07C 43/ 11( . ) B01J 23/ 06( . ) B01J 23/ 20( . ) B01J 37/ 02( . ) C07C 41/ 03( . ) (86) International application number: PCT/AU1994/000645 (87) International publication number: WO 1995/011212 (27.04.1995 Gazette 1995/18)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 22.10.1993 AU 1993PM01954 22.10.1993 AU 1993PM01955 (71) Applicant: ICI AUSTRALIA OPERATIONS PROPRIETARY LIMITED Melbourne Victoria 3000 (AU)

(72) Inventors: DEUTSCHER, Kenneth, Reginald Sunbury, VIC 3249 (AU) NGIAN, Kiah, Fah Surrey Hills, VIC 3127 (AU) PARR, Rodney, Walter Doncaster, VIC 3108 (AU) PARRIS, David Parkville, VIC 3052 (AU) TASDELEN, Esennur, Elizabeth Mulgrave, VIC 3170 (AU) (74) Representative: Roberts, Jonathan Winstanley, et al  Intellectual Property Department ICI Chemicals & Polymers Ltd P.O. Box 11 The Heath Runcorn Cheshire WA7 4QE Runcorn Cheshire WA7 4QE (GB)