(19)

(11)

EP 0 934 384 A1

(12)

(43) Date of publication: 11.08.1999 Bulletin 1999/32 (21) Application number: 97945848.0 (22) Date of filing: 14.10.1997

(51) International Patent Classification (IPC):  C11D 3/ 386( . ) C11D 17/ 00( . ) (86) International application number: PCT/EP1997/005711 (87) International publication number: WO 1998/016607 (23.04.1998 Gazette 1998/16)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 15.10.1996 GB 19960021436 (71) Applicants: UNILEVER N.V. 3013 AL Rotterdam (NL) UNILEVER PLC London EC4P 4BQ (GB)

(72) Inventors: PAS, Johannes, Cornelis, van de, Unilever Res lab NL-3133 AT Vlaardingen (NL) DIJK, Willem, R., van NL-3263 EB Oud Beijerland (NL) OUWENDIJK, Marja, Unilever Res Vlaardingen Lab NL-3133 AT Vlaardingen (NL) REED, David, Alan, Unilever Research Lab. Bebington Wirral Merseyside L63 3JW (GB) THOMAS, Lisa, Jane, Unilever Research Lab. Bebington Wirral Merseyside L63 3JW (GB) (74) Representative: Rosen Jacobson, Frans, et al  Unilever Patent Dept., Olivier Van Noortlaan 120 3133 AT Vlaardingen 3133 AT Vlaardingen (NL)