(19)

(11)

EP 0 589 953 A1

(12)

(43) Date of publication: 06.04.1994 Bulletin 1994/14 (21) Application number: 92911885.0 (22) Date of filing: 10.06.1992

(51) International Patent Classification (IPC):  C02F 1/ 52( . ) C02F 1/ 66( . ) C02F 1/ 54( . ) C02F 9/ 00( . ) (86) International application number: PCT/AU1992/000272 (87) International publication number: WO 1992/022504 (23.12.1992 Gazette 1992/32)

(84) Designated Contracting States: AT BE DE ES FR GB IT LU SE (30) Priority: 11.06.1991 AU 19910006597 (71) Applicant: UNILEVER AUSTRALIA LIMITED Epping, NSW 2121 (AU)	(72) Inventor: HUGHES, Terence, Charles Unit 16 North Carlton, VIC 3054 (AU) (74) Representative: Ford, Michael Frederick, et al  MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)