(19)

(11)

EP 0 518 870 A1

(12)

(43) Date of publication: 23.12.1992 Bulletin 1992/52 (21) Application number: 91902945.0 (22) Date of filing: 01.02.1991

(51) International Patent Classification (IPC):  C11D 1/ 62( . ) C11D 3/ 12( . ) C11D 3/ 39( . ) C11D 17/ 08( . ) D06M 13/ 02( . ) D06M 13/ 325( . ) D06M 13/ 463( . ) C11D 3/ 00( . ) C11D 3/ 22( . ) C11D 3/ 395( . ) D06L 3/ 02( . ) D06M 13/ 322( . ) D06M 13/ 46( . ) D06M 15/ 09( . ) (86) International application number: PCT/EP1991/000212 (87) International publication number: WO 1991/013963 (19.09.1991 Gazette 1991/22)

(84) Designated Contracting States: CH DE ES FR GB IT LI NL SE (30) Priority: 06.03.1990 EP 19900200525 (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) DRÖGE, Johannes Herman Maria B-1040 Brussel (BE) (74) Representative: Tan, Bian An, Ir.  Unilever N.V. Patent Division P.O. Box 137 NL-3130 AC Vlaardingen NL-3130 AC Vlaardingen (NL)