(19)

(11)

EP 0 697 038 A1

(12)

(43) Date of publication: 21.02.1996 Bulletin 1996/08 (21) Application number: 94915537.0 (22) Date of filing: 26.04.1994

(51) International Patent Classification (IPC):  C11D 1/ 66( . ) C11D 3/ 20( . ) C11D 1/ 74( . ) C11D 17/ 00( . ) (86) International application number: PCT/EP1994/001289 (87) International publication number: WO 1994/025562 (10.11.1994 Gazette 1994/25)

(84) Designated Contracting States: CH DE ES FR GB IT LI NL SE (30) Priority: 04.05.1993 EP 19930201291 (71) Applicants: UNILEVER N.V. NL-3013 AL Rotterdam (NL) UNILEVER PLC London EC4P 4BQ (GB)	(72) Inventors: VAN DER HOEVEN, Philippus, Cornelis NL-4841 XV Prinsenbeek (NL) PRESCOTT, John Bebington Wirral Merseyside L63 3AN (GB) (74) Representative: Zweep, Robert-Jan, et al  Unilever N.V. Patent Division P.O. Box 137 NL-3130 AC Vlaardingen NL-3130 AC Vlaardingen (NL)