(19)

(11)

EP 0 956 332 A1

(12)

(43) Date of publication: 17.11.1999 Bulletin 1999/46 (21) Application number: 98919154.0 (22) Date of filing: 18.03.1998

(51) International Patent Classification (IPC):  C11D 1/ 83( . ) C11D 3/ 39( . ) C11D 1/ 22( . ) C11D 3/ 06( . ) C11D 17/ 00( . ) C11D 1/ 72( . ) (86) International application number: PCT/EP1998/001769 (87) International publication number: WO 1998/042816 (01.10.1998 Gazette 1998/39)

(84) Designated Contracting States: DE ES FR IE IT Designated Extension States: RO (30) Priority: 24.03.1997 GB 19970006083 (60) Divisional application: 01105543.1 /  (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) UNILEVER N.V. 3013 AL Rotterdam (NL)	(72) Inventor: BOSKAMP, Jelles Vincent, Lever Development Centre NL-3133 AT Vlaardingen (NL) (74) Representative: Ford, Michael Frederick, et al  MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)