(19)

(11)

EP 0 514 422 A1

(12)

(43) Date of publication: 25.11.1992 Bulletin 1992/48 (21) Application number: 91903330.0 (22) Date of filing: 07.02.1991

(51) International Patent Classification (IPC):  C11D 3/ 08( . ) C11D 3/ 395( . ) D06L 3/ 02( . ) C11D 3/ 39( . ) C11D 17/ 08( . ) (86) International application number: PCT/EP1991/000258 (87) International publication number: WO 1991/012307 (22.08.1991 Gazette 1991/19)

(84) Designated Contracting States: CH DE ES FR GB IT LI NL SE (30) Priority: 08.02.1990 EP 19900200290 28.08.1990 EP 19900202309 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) UNILEVER N.V. NL-3000 DK Rotterdam (NL)	(72) Inventors: VAN DE PAS, Johannes, Cornelis NL-3136 CV Vlaardingen (NL) OLSTHOORN, Theresia, Maria NL-3137 VB Vlaardingen (NL) (74) Representative: Kan, Jacob Hendrik, Dr., et al  Unilever N.V. Patent Division P.O. Box 137 NL-3130 AC Vlaardingen NL-3130 AC Vlaardingen (NL)