(19)

(11)

EP 0 768 987 A1

(12)

(43) Date of publication: 23.04.1997 Bulletin 1997/17 (21) Application number: 95923461.0 (22) Date of filing: 29.06.1995

(51) International Patent Classification (IPC):  A01N 59/ 16( . ) C02F 1/ 50( . ) C02F 1/ 46( . ) (86) International application number: PCT/GB1995/001540 (87) International publication number: WO 1996/001231 (18.01.1996 Gazette 1996/04)

(84) Designated Contracting States: CH DE ES FR GB IT LI NL SE (30) Priority: 01.07.1994 GB 19940013299 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) UNILEVER N.V. 3013 AL Rotterdam (NL)	(72) Inventors: CARR, Stuart, William Liverpool L17 7BQ (GB) LAMBERT, Ronald, Joseph Sharnbrook Bedford MK44 1LH (GB) (74) Representative: Ford, Michael Frederick, et al  MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)